Expr.h revision 94deaf675ae60e11c2d9475c6dbfd0c7123160f5
15f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===--- Expr.h - Classes for representing expressions ----------*- C++ -*-===// 25f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 35f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// The LLVM Compiler Infrastructure 45f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 50bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// This file is distributed under the University of Illinois Open Source 60bc735ffcfb223c0186419547abaa5c84482663eChris Lattner// License. See LICENSE.TXT for details. 75f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 85f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 95f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// This file defines the Expr interface and subclasses. 115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// 125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#ifndef LLVM_CLANG_AST_EXPR_H 155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#define LLVM_CLANG_AST_EXPR_H 165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson#include "clang/AST/APValue.h" 185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Stmt.h" 195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "clang/AST/Type.h" 205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 21525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 223b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 23c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 26590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 27c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 28c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 29c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 30c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 318e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 32c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 34c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 42f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor Expr(StmtClass SC, QualType T) : Stmt(SC) { setType(T); } 43f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregorpublic: 44f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 45f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor void setType(QualType t) { 469d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 479d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 489d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 499d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 509d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 519d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 529d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 53f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor assert((TR.isNull() || !TR->isReferenceType()) && 548320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 55f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 56f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor TR = t; 579d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 5877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// hasLocalSideEffect - Return true if this immediate expression has side 695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// effects, not counting any sub-expressions. 705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool hasLocalSideEffect() const; 715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 8108ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 87fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_InvalidExpression 895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 9028be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// and if it is a structure or union, does not have any member (including, 955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 101fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 103ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1064f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1075daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 108ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 109ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_NoSetterProperty 1105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 11128be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx) const; 1125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 113590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isNullPointerConstant(ASTContext &Ctx) const; 11427c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor bool isBitField(); 1155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 116cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// getIntegerConstantExprValue() - Return the value of an integer 117cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// constant expression. The expression must be a valid integer 118cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar /// constant expression as determined by isIntegerConstantExpr. 119cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar llvm::APSInt getIntegerConstantExprValue(ASTContext &Ctx) const { 1208070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 121cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar bool success = isIntegerConstantExpr(X, Ctx); 122a5d1cb7ef3f0780540e7fd7180399fd220ef0210Daniel Dunbar success = success; 123cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar assert(success && "Illegal argument to getIntegerConstantExpr"); 124cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar return X; 125cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar } 126cd8f646eca128f52a7bce0103c51ff82ce96f374Daniel Dunbar 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 131590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 132590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 134590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 1358070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 136590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13838374b05791ee93300b9fbe8ceb3957f54184b37Steve Naroff /// isConstantExpr - Return true if this expression is a valid constant expr. 13938374b05791ee93300b9fbe8ceb3957f54184b37Steve Naroff bool isConstantExpr(ASTContext &Ctx, SourceLocation *Loc) const; 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 14294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 14394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Val - This is the scalar value the expression can be folded to. 14494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 14594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 14694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 14794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 14894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 14994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 15094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 15194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 15294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 15394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 15494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 15594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 15694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 15794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 15894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 15994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 16094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 16194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 16294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 16394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 16494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 1656ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 166019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 167019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 168019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 1696dde0d5dc09f45f4d9508c964703e36fef1a0198Anders Carlsson // FIXME: We should come up with a better API for the isEvaluated case. 1706dde0d5dc09f45f4d9508c964703e36fef1a0198Anders Carlsson bool Evaluate(APValue& Result, ASTContext &Ctx, bool *isEvaluated = 0) const; 1716dde0d5dc09f45f4d9508c964703e36fef1a0198Anders Carlsson 1726ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 17345b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 17445b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 175c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 17651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 17751fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 17851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 17951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 1802e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek /// hasGlobalStorage - Return true if this expression has static storage 1814cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// duration. This means that the address of this expression is a link-time 1824cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// constant. 1832e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek bool hasGlobalStorage() const; 1844e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 1854e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 1864e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// its subexpression. If that subexpression is also a ParenExpr, 1874e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 1884e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 1894e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 19056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 19156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 19227c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 19356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 1944e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 1954e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 1964e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 1974e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 19856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 19956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 20056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 20156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 2072e7d352dbec06755105237afba183492d31d03cbTed Kremenek 208e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static inline Expr* Create(llvm::Deserializer& D, ASTContext& C) { 209e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop return cast<Expr>(Stmt::Create(D, C)); 2102e7d352dbec06755105237afba183492d31d03cbTed Kremenek } 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 2145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 2175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 2205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 2218e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *D; 2225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 2239e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 2249e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 2258e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 2269e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 2279e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 2285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2298e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 2305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 2315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2328e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 2338e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 234904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 235904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 2369e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 2375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2409e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 2419e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis T->getStmtClass() == CXXConditionDeclExprClass; 2425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 24477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 24577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 24677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 24777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2482dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 249ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 250e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static DeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 2515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 253d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 254d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 255227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 256227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 257227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 258227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 259cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 260227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 261227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 262227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 263227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 264227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 265227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 266d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 267d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner : Expr(PredefinedExprClass, type), Loc(l), Type(IT) {} 268227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 269227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 270227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 271227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 272227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 273227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 274d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner return T->getStmtClass() == PredefinedExprClass; 275227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 276d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 27777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 27877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 27977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 28077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 2811ba485e582edfc8636afc25a6d7453c869530688Ted Kremenek 282ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 283d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static PredefinedExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 284227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 285227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 2865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 2885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 2895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 2915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 2935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 2945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 2955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 30377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 30477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 30577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 30677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3072dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 308ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 309e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static IntegerLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 3145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 315c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 3175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 318c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 319c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 3205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3212eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner SourceLocation getLoc() const { return Loc; } 322c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 3232eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 33277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 33377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 33477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 33577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3367338a8299ec393eaf6bb580b5ef9ab2b08b5bd11Ted Kremenek 337ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 338e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CharacterLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 342525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 343720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 346720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek FloatingLiteral(const llvm::APFloat &V, bool* isexact, 347720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 348720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek : Expr(FloatingLiteralClass, Type), Value(V), IsExact(*isexact), Loc(L) {} 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 350c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 351720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek 352720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 353c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 354da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 355da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 356da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 357da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 358da8249e57f3badecf925571881fe57243935c6c1Chris Lattner 3595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 3635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 36577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 36677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 36777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 36877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 369612c9b9ca73593b3194866c9e1a51554db9752e7Ted Kremenek 370ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 371e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static FloatingLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 3725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3745d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 3755d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 3765d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 3775d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 3785d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 3795d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 3805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 3815d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 3825d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 3835d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 3845d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 3855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 3865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 3875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 3885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 3895d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const Stmt *T) { 3905d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner return T->getStmtClass() == ImaginaryLiteralClass; 3915d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 3925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 3935d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 3945d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 3955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 3965d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 3971c72de1be77fc43cc27e9bf1cbfe7bd25bee2f81Ted Kremenek 398ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 399e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ImaginaryLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4005d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 4015d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 402e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 403e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 404e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 405a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 406a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// ConstantArrayType. 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 4105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 4115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // if the StringLiteral was composed using token pasting, both locations 4125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // are needed. If not (the common case), firstTokLoc == lastTokLoc. 4135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // FIXME: if space becomes an issue, we should create a sub-class. 4145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation firstTokLoc, lastTokLoc; 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer StringLiteral(const char *strData, unsigned byteLength, bool Wide, 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType t, SourceLocation b, SourceLocation e); 4185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual ~StringLiteral(); 4195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 4215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 4225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 4235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 4255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(firstTokLoc,lastTokLoc); 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 4295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 43177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 43277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 43377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 43477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4357febad7377c04607aa2c744d58af61e1abea6250Ted Kremenek 436ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 437e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static StringLiteral* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 4415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 4435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 4445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 4455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 4475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(ParenExprClass, val->getType()), L(l), R(r), Val(val) {} 4485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 4505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 451866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 4555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 45777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 45877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 45977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 46077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4619eea2ca5f2cb5d77569274702b5b06273e426dc2Ted Kremenek 462ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 463e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ParenExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 4680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 4695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 470dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 471dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 472dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 473dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 474dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 475dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 476dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 47773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 47873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// subexpression is a compound literal with the various MemberExpr and 47973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 48073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 4825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 48313d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 4845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 4855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 4865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 4875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 4885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 4895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 4905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 49173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 49273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 4935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 4945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 4955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 4965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 4975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(UnaryOperatorClass, type), Val(input), Opc(opc), Loc(l) {} 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 5045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 5075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isPostfix(Opcode Op); 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5125a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 5135a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek static bool isPrefix(Opcode Op); 5145a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 5155a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 5165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 5175d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 5185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 5195a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 5205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 5215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 5255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 5285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 5295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 5315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 5365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 53877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 5395a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson int64_t evaluateOffsetOf(ASTContext& C) const; 5405a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson 54177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 54277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 54377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5441049436d4b53d928b555f7381bc1639dd302bbc7Ted Kremenek 545ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 546e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static UnaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5490518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 5500518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 5510518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 5520518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 5530518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 5540518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl void *Argument; 5555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 5565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5570518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SizeOfAlignOfExpr(bool issizeof, bool istype, void *argument, 5580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 5590518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 5600518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl Expr(SizeOfAlignOfExprClass, resultType), 5610518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl isSizeof(issizeof), isType(istype), Argument(argument), 5620518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl OpLoc(op), RParenLoc(rp) {} 5630518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 5649048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar virtual void Destroy(ASTContext& C); 5659048891ff983d0681c116c6e8f1073aa31bdd6e8Daniel Dunbar 5665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 5670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 5680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 5690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 5700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return QualType::getFromOpaquePtr(Argument); 5710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 5720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl Expr* getArgumentExpr() const { 5730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 5740518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return (Expr *)Argument; 5750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 5760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 5770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 5780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 5790518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 5800518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 5810518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 58276e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 583866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 584866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 585866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 586866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 5890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return T->getStmtClass() == SizeOfAlignOfExprClass; 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5910518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 59277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 59377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 59477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 59577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 596ea2fe9b435e1b55135de32dcac97366554706ac4Ted Kremenek 597ea2fe9b435e1b55135de32dcac97366554706ac4Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 5980518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static SizeOfAlignOfExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 6065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 60777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 6085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 61273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 61373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner : Expr(ArraySubscriptExprClass, t), RBracketLoc(rbracketloc) { 61473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 61573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 61673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 6175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6182324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 6192324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 6202324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 6212324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 6222324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 62333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 62433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 62533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 62633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 6275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 6285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 62977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 6305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 6315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 6322324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 63377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 6345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 63577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 63677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 6372324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 6385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 6392324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 6402324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 64177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 6425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 6432324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 6442324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 64577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 6465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 64777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 649866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 65077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 652866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 6535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return RBracketLoc; } 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 65977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 66077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 66177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 66396fa54fc6dc7f4c8dad1fb22fc7fc4f4d775d6c0Ted Kremenek 664ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 665e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ArraySubscriptExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 669b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 670b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 671b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 672b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// results in a function call. For example, CXXOperatorCallExpr is 673b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 674b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 67677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 6775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 680d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 681d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek // This version of the ctor is for deserialization. 682b4609806e9232593ece09ce08b630836e825865cDouglas Gregor CallExpr(StmtClass SC, Stmt** subexprs, unsigned numargs, QualType t, 683d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek SourceLocation rparenloc) 684b4609806e9232593ece09ce08b630836e825865cDouglas Gregor : Expr(SC,t), SubExprs(subexprs), 685d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek NumArgs(numargs), RParenLoc(rparenloc) {} 686b4609806e9232593ece09ce08b630836e825865cDouglas Gregor 687b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 688b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 689b4609806e9232593ece09ce08b630836e825865cDouglas Gregor CallExpr(StmtClass SC, Expr *fn, Expr **args, unsigned numargs, QualType t, 690b4609806e9232593ece09ce08b630836e825865cDouglas Gregor SourceLocation rparenloc); 691d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CallExpr(Expr *fn, Expr **args, unsigned numargs, QualType t, 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ~CallExpr() { 69677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek delete [] SubExprs; 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 7005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 70118b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 7105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 7115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 7145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 716934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 717934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 718934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 719934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 720934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 721d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 722d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 723d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 724d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 725d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner void setNumArgs(unsigned NumArgs); 726d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 7275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 7285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 7295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 730d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 731d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 7325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 7335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 734d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 7355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 739cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 740cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 741cb888967400a03504c88acedd5248d6778a82f46Chris Lattner unsigned isBuiltinCall() const; 742cb888967400a03504c88acedd5248d6778a82f46Chris Lattner 743d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 744866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 745866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 74677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 750b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 751b4609806e9232593ece09ce08b630836e825865cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass; 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 75477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 75577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 758d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 759ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 760b4609806e9232593ece09ce08b630836e825865cDouglas Gregor static CallExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C, 761b4609806e9232593ece09ce08b630836e825865cDouglas Gregor StmtClass SC); 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 7675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FieldDecl *MemberDecl; 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsArrow; // True if this is "X->F", false if this is "X.F". 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 772510190777c4bd53e960eea4665b204778fec1b64Eli Friedman MemberExpr(Expr *base, bool isarrow, FieldDecl *memberdecl, SourceLocation l, 773510190777c4bd53e960eea4665b204778fec1b64Eli Friedman QualType ty) 774510190777c4bd53e960eea4665b204778fec1b64Eli Friedman : Expr(MemberExprClass, ty), 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 776510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 7775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 7785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer FieldDecl *getMemberDecl() const { return MemberDecl; } 7795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getBase()->getLocStart(), MemberLoc); 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 784866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == MemberExprClass; 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 7911237c673c07f9d827129ba02720108816abde562Ted Kremenek 7921237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 7931237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 7941237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 795bd57e7c4754c0ce5d7d460041c8fd613e45c4319Ted Kremenek 796bd57e7c4754c0ce5d7d460041c8fd613e45c4319Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 797e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static MemberExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 800aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 801aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 802aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 8030fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 8040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 8050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 8060fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 8075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 808e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 809aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 810a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 811a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 812a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 813a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 814aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 8155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 8165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 817e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 818e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 819aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 8200fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 8210fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner 82273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 8230fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 8240fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 8250fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 8260fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 82773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 8280fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 82973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 830aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 831aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 832aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 833aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 834aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 8351237c673c07f9d827129ba02720108816abde562Ted Kremenek 8361237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 8371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 8381237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 8394b7d9ca9fd65a5a68e907b1b7effe33bf1e93629Ted Kremenek 8404b7d9ca9fd65a5a68e907b1b7effe33bf1e93629Ted Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 841e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CompoundLiteralExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 842aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 843aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 84449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 84549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 84649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 84749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 8480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 8490835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 8500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 8510835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis CastExpr(StmtClass SC, QualType ty, Expr *op) : 8520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr(SC, ty), Op(op) {} 8530835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 8540835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 8550835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 8560835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 8570835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 8580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const Stmt *T) { 8599d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 8609d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 8619d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 8629d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 8636eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 8640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 8659d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 8669d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 8670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 8680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 8690835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 8700835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 8710835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 8720835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 8730835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 8740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 87549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 87649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 87749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 87849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 87949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 880bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 881bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 882bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 883bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 884bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 885bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 886bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 887bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// void f(Derived d) { 888bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 889bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 890bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 8910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 892eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 893eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 894eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 89549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 896eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor ImplicitCastExpr(QualType ty, Expr *op, bool Lvalue) : 897eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor CastExpr(ImplicitCastExprClass, ty, op), LvalueCast(Lvalue) {} 89890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 8990835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 9000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 9010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 90290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 903eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 904eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 905eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 906eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 907eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 908eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 90949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 91049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 91149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 91249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 9131237c673c07f9d827129ba02720108816abde562Ted Kremenek 914ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 915e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ImplicitCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 91649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 91749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 91849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 91949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// code. 92049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 92149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 92249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 92349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 92449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 92549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 92749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 92849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 92949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 93049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 93149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 93249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 93349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 9340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 93549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 93649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 93749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 93849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 93949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 9408320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar ExplicitCastExpr(StmtClass SC, QualType exprTy, Expr *op, QualType writtenTy) 9418320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar : CastExpr(SC, exprTy, op), TypeAsWritten(writtenTy) {} 94249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 94349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 94449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 94549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 94649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 94749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 94849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const Stmt *T) { 9499d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 9506eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 9519d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 9529d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 95349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 9549d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 9559d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 95649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 95749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 95849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 95949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 9606eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 96149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 96249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 9636eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 964b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 965b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9676eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor CStyleCastExpr(QualType exprTy, Expr *op, QualType writtenTy, 968b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation l, SourceLocation r) : 969b2f9e516327310d95840d442416084508f80c183Steve Naroff ExplicitCastExpr(CStyleCastExprClass, exprTy, op, writtenTy), 970b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 97149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 972b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 973b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 976b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 9796eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor return T->getStmtClass() == CStyleCastExprClass; 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9816eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 9829971c9ace70624987cd74645a75f4bfbc05afdf2Ted Kremenek 983ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 9846eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static CStyleCastExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 99103d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 10055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 10065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 101017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 101117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 10125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 101317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 101417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 101517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerpublic: 10165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 101717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 101817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 101917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(BinaryOperatorClass, ResTy), Opc(opc), OpLoc(opLoc) { 10201237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 10211237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 102617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 10285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 10295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1043f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1044f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1045f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1046f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1047f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1048f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 1049f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1050f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1051f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1052f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1057eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner static bool classof(const Stmt *S) { 1058eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 1059eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner S->getStmtClass() == CompoundAssignOperatorClass; 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 10621237c673c07f9d827129ba02720108816abde562Ted Kremenek 10631237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 10641237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 10651237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 10662dc9ac73a8a34cabf261a81a1653d7379065ac61Ted Kremenek 1067ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1068e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static BinaryOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 10691237c673c07f9d827129ba02720108816abde562Ted Kremenek 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 107117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 107217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 107317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 10741237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 10751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 10765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 10805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 10815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType ComputationType; 10875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 108917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner QualType ResType, QualType CompType, 109017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 109117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 109217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner ComputationType(CompType) { 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType getComputationType() const { return ComputationType; } 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 11005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 1101eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == CompoundAssignOperatorClass; 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 110383efb151a0c1df8cb8fb25d6dbb6c0f12f07f60aTed Kremenek 1104ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1105e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static CompoundAssignOperator* CreateImpl(llvm::Deserializer& D, 1106e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop ASTContext& C); 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 11125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 11131237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 11145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 11171237c673c07f9d827129ba02720108816abde562Ted Kremenek : Expr(ConditionalOperatorClass, t) { 11181237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 11191237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 11201237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 11211237c673c07f9d827129ba02720108816abde562Ted Kremenek } 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1123395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1124395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 11255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1126395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1127395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1128395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1129395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1130395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1131395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 1132395a2abf0028968d85958610e393e067885dc14fTed Kremenek // is only evaluated once. 1133395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 11345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1135395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 1136395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1137395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1138395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 11395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 1140395a2abf0028968d85958610e393e067885dc14fTed Kremenek 11415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 11425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 11435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 11511237c673c07f9d827129ba02720108816abde562Ted Kremenek 11521237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11531237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11541237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1155aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1156ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1157e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static ConditionalOperator* CreateImpl(llvm::Deserializer& D, ASTContext& C); 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11606481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 11616481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 11625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 11635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 11645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11656481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 11666481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 11676481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 11715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 11766481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11786481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 11791237c673c07f9d827129ba02720108816abde562Ted Kremenek 11801237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11811237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11821237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1183aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1184ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1185e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static AddrLabelExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1187ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1188ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1189ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1190ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1191ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 11925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1193ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1194ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1195d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1196d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1197d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1198ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 11995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 12005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 1201ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1202ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1203ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1204ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 12055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1206ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 1207ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 1208ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1209ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 12101237c673c07f9d827129ba02720108816abde562Ted Kremenek 12111237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 12121237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 12131237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1214aa33763cc3dfa2fcb4fdb3c5b4be0c37f8d8f8e9Ted Kremenek 1215ec0aa78745f7b3bc96c20fffd1115bf26aaa0eadTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1216e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static StmtExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1217ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1218ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1219d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// TypesCompatibleExpr - GNU builtin-in function __builtin_type_compatible_p. 1220d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1221d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1222d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1223d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1224d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1225d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1226363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1227d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 1228363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1229d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 1230d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1231363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1232d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 12337f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 12347f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 1235ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 1236d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1237363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1238d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1239d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 1240d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 1241d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1242d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 12431237c673c07f9d827129ba02720108816abde562Ted Kremenek 12441237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 12451237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 12461237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1247d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1248d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1249d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static TypesCompatibleExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1250d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1251d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1252d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1253d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1254d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1255d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1256d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1257d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1258d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1259d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1260d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1261d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1262d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1263d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1264d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 12655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1266d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1267d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1268d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1269d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ShuffleVectorExpr(Expr **args, unsigned nexpr, 1270d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman QualType Type, SourceLocation BLoc, 1271d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation RP) : 1272d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1273f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 1274f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek 12755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek SubExprs = new Stmt*[nexpr]; 1276d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1277d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1278d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1279d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1280d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1281d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1282d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1283d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 1284d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return T->getStmtClass() == ShuffleVectorExprClass; 1285d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1286d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 1287d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1288d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman ~ShuffleVectorExpr() { 1289d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman delete [] SubExprs; 1290d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1291d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1292d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1293d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1294d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1295d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 1296d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1297d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1298d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1299d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 13005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1301d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1302d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1303d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 13045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1305d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1306d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1307dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1308dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 1309a5d1cb7ef3f0780540e7fd7180399fd220ef0210Daniel Dunbar return getExpr(N+2)->getIntegerConstantExprValue(Ctx).getZExtValue(); 1310d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1311d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1312d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1313d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1314d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1315d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1316d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1317d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ShuffleVectorExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1318d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1319d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1320d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1321d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 1322d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 13232d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// - the test expression must be a constant expression. 1324d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// - the expression returned has it's type unaltered by promotion rules. 1325d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// - does not evaluate the expression that was not chosen. 1326d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 13271237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 13285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1329d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1330d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 1331d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1332d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 1333d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 13341237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 13351237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 13361237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 13371237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 13381237c673c07f9d827129ba02720108816abde562Ted Kremenek } 1339c1b607db38501f73c8e1461fc749a6b0e469f157Chris Lattner 134027437caadea35f84d550cd29f024fcf3ea240eecChris Lattner /// isConditionTrue - Return true if the condition is true. This is always 134127437caadea35f84d550cd29f024fcf3ea240eecChris Lattner /// statically knowable for a well-formed choosexpr. 134227437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 134327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner 13445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 13455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 13465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 13471237c673c07f9d827129ba02720108816abde562Ted Kremenek 1348d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 1349d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1350d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1351d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 1352d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 1353d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1354d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 13551237c673c07f9d827129ba02720108816abde562Ted Kremenek 13561237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 13571237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 13581237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1359d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1360d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1361d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ChooseExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1362d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 1363d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 13642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 13652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 13662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 13672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 13682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 13692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 13702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 13712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 13722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 13732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 13752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor GNUNullExpr(QualType Ty, SourceLocation Loc) 13762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 13772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 13792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 13802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 13822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 13832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 13842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 13852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return T->getStmtClass() == GNUNullExprClass; 13862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 13872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 13882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 13902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 13912d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 13922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual void EmitImpl(llvm::Serializer& S) const; 13942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static GNUNullExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 13952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 13962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 13976a1bc1b95ee31c6892d46a6993b9e2d2d66831eeNate Begeman/// OverloadExpr - Clang builtin function __builtin_overload. 139867295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// This AST node provides a way to overload functions in C. 139967295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// 140067295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// The first argument is required to be a constant expression, for the number 140167295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// of arguments passed to each candidate function. 140267295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// 140367295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// The next N arguments, where N is the value of the constant expression, 140467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// are the values to be passed as arguments. 140567295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// 140667295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// The rest of the arguments are values of pointer to function type, which 140767295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// are the candidate functions for overloading. 140867295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// 140967295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// The result is a equivalent to a CallExpr taking N arguments to the 141067295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// candidate function whose parameter types match the types of the N arguments. 141167295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// 141267295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// example: float Z = __builtin_overload(2, X, Y, modf, mod, modl); 141367295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// If X and Y are long doubles, Z will assigned the result of modl(X, Y); 141467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman/// If X and Y are floats, Z will be assigned the result of modf(X, Y); 1415e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begemanclass OverloadExpr : public Expr { 141667295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // SubExprs - the list of values passed to the __builtin_overload function. 141767295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // SubExpr[0] is a constant expression 141867295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // SubExpr[1-N] are the parameters to pass to the matching function call 141967295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // SubExpr[N-...] are the candidate functions, of type pointer to function. 14205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 142167295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman 142267295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // NumExprs - the size of the SubExprs array 142367295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman unsigned NumExprs; 142467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman 142567295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman // The index of the matching candidate function 1426e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman unsigned FnIndex; 142767295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman 1428e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman SourceLocation BuiltinLoc; 1429e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman SourceLocation RParenLoc; 1430e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begemanpublic: 1431796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman OverloadExpr(Expr **args, unsigned nexprs, unsigned idx, QualType t, 1432e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman SourceLocation bloc, SourceLocation rploc) 1433796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman : Expr(OverloadExprClass, t), NumExprs(nexprs), FnIndex(idx), 143467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman BuiltinLoc(bloc), RParenLoc(rploc) { 14355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek SubExprs = new Stmt*[nexprs]; 1436796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman for (unsigned i = 0; i != nexprs; ++i) 1437e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman SubExprs[i] = args[i]; 1438e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman } 1439e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman ~OverloadExpr() { 1440e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman delete [] SubExprs; 1441e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman } 1442e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman 144367295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman /// arg_begin - Return a pointer to the list of arguments that will be passed 144467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman /// to the matching candidate function, skipping over the initial constant 144567295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman /// expression. 14465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 14475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return &SubExprs[0]+1; } 14485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end(ASTContext& Ctx) const { 14495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return &SubExprs[0]+1+getNumArgs(Ctx); 14505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek } 14515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 145267295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman /// getNumArgs - Return the number of arguments to pass to the candidate 145367295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman /// functions. 145467295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman unsigned getNumArgs(ASTContext &Ctx) const { 14558070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar return getExpr(0)->getIntegerConstantExprValue(Ctx).getZExtValue(); 145667295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman } 145767295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman 1458796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1459796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman /// constant expression, the actual arguments passed in, and the function 1460796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman /// pointers. 146167295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman unsigned getNumSubExprs() const { return NumExprs; } 1462e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman 1463796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman /// getExpr - Return the Expr at the specified index. 14648070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar Expr *getExpr(unsigned Index) const { 1465796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman assert((Index < NumExprs) && "Arg access out of range!"); 14665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1467e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman } 146867295d05c50ab0b5d1b0f9ef82a906701c348715Nate Begeman 1469796ef3d4a32ce8d9e76df0d5bcab07db97883064Nate Begeman /// getFn - Return the matching candidate function for this OverloadExpr. 14705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFn() const { return cast<Expr>(SubExprs[FnIndex]); } 1471e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman 1472e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman virtual SourceRange getSourceRange() const { 1473e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman return SourceRange(BuiltinLoc, RParenLoc); 1474e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman } 1475e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman static bool classof(const Stmt *T) { 1476e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman return T->getStmtClass() == OverloadExprClass; 1477e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman } 1478e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman static bool classof(const OverloadExpr *) { return true; } 1479e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman 1480e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman // Iterators 1481e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman virtual child_iterator child_begin(); 1482e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman virtual child_iterator child_end(); 148320c77e995d5f1bad8fc59fe9e1883a563d94f535Daniel Dunbar 148420c77e995d5f1bad8fc59fe9e1883a563d94f535Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 148520c77e995d5f1bad8fc59fe9e1883a563d94f535Daniel Dunbar static OverloadExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1486e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman}; 1487e2ce1d9440186cf3332368291cd884a6e3ae8946Nate Begeman 14887c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 14897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 14905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 14917c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 14927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 14937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 14947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 14957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 14967c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 14977c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 14987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 14995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 15005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 15017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 15027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 15037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 15047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 15057c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 15067c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 15077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 15087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 15097c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 15107c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 15117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_end(); 1512d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1513d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1514d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static VAArgExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 15157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 15167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 1517196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// InitListExpr - used for struct and array initializers, such as: 1518196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// struct foo x = { 1, { 2, 3 } }; 1519196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 1520196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// Because C is somewhat loose with braces, the AST does not necessarily 1521196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// directly model the C source. Instead, the semantic analyzer aims to make 1522196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// the InitListExprs match up with the type of the decl being initialized. We 1523196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// have the following exceptions: 1524196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 1525196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 1. Elements at the end of the list may be dropped from the initializer. 1526196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// These elements are defined to be initialized to zero. For example: 1527196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// int x[20] = { 1 }; 1528196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 2. Initializers may have excess initializers which are to be ignored by the 1529196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// compiler. For example: 1530196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// int x[1] = { 1, 2 }; 15313fd1dfa22f2642c627ad2139b048b99fc5507ef3Chris Lattner/// 3. Redundant InitListExprs may be present around scalar elements. These 15323fd1dfa22f2642c627ad2139b048b99fc5507ef3Chris Lattner/// always have a single element whose type is the same as the InitListExpr. 15333fd1dfa22f2642c627ad2139b048b99fc5507ef3Chris Lattner/// this can only happen for Type::isScalarType() types. 1534196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// int x = { 1 }; int y[2] = { {1}, {2} }; 1535196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 153666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 15375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 153866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 1539418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner 1540418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner /// HadDesignators - Return true if there were any designators in this 1541418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner /// init list expr. FIXME: this should be replaced by storing the designators 1542418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner /// somehow and updating codegen. 1543418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner bool HadDesignators; 154466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 154566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 1546418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner SourceLocation rbraceloc, bool HadDesignators); 154766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 1548c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 1549418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner bool hadDesignators() const { return HadDesignators; } 155066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 155166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson const Expr* getInit(unsigned Init) const { 1552c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 15535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(InitExprs[Init]); 155466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 155566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 155666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson Expr* getInit(unsigned Init) { 1557c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 15585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(InitExprs[Init]); 155966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 156066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 15619e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff void setInit(unsigned Init, Expr *expr) { 1562c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 15639e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 15649e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 1565c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 1566c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Dynamic removal/addition (for constructing implicit InitExpr's). 1567c5ae899b4bbf65488445316c63168079177db0edSteve Naroff void removeInit(unsigned Init) { 1568c5ae899b4bbf65488445316c63168079177db0edSteve Naroff InitExprs.erase(InitExprs.begin()+Init); 1569c5ae899b4bbf65488445316c63168079177db0edSteve Naroff } 1570c5ae899b4bbf65488445316c63168079177db0edSteve Naroff void addInit(unsigned Init, Expr *expr) { 1571c5ae899b4bbf65488445316c63168079177db0edSteve Naroff InitExprs.insert(InitExprs.begin()+Init, expr); 1572c5ae899b4bbf65488445316c63168079177db0edSteve Naroff } 1573c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 1574c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 1575c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 1576c5ae899b4bbf65488445316c63168079177db0edSteve Naroff bool isExplicit() { 1577c5ae899b4bbf65488445316c63168079177db0edSteve Naroff return LBraceLoc.isValid() && RBraceLoc.isValid(); 1578c5ae899b4bbf65488445316c63168079177db0edSteve Naroff } 15799e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff 158066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 158166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 158266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 158366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 158466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return T->getStmtClass() == InitListExprClass; 158566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 158666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 158766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 158866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 158966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 159066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 15916336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 15927fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 15937fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 15947fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 15957fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 15967fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 15977fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 15987fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 15997fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 16007fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek // Serailization. 16016336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek virtual void EmitImpl(llvm::Serializer& S) const; 1602e2563ca02a519c2ad6d64dfed87d6e86c5d3c072Sam Bishop static InitListExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 16036336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 16046336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenekprivate: 16056336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek // Used by serializer. 160628a309e387a0a69b0c055c1565aa147fc695f906Chris Lattner InitListExpr() : Expr(InitListExprClass, QualType()) {} 160766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 160866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 16094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 16104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 16114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 16124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 1613a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1614a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 1615a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 1616a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 1617a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 1618a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 1619a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 1620a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner IdentifierInfo &Accessor; 1621a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 1622a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 1623a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 1624a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 1625a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(ExtVectorElementExprClass, ty), 1626a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Base(base), Accessor(accessor), AccessorLoc(loc) {} 1627a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1628a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 1629a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 1630a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1631a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner IdentifierInfo &getAccessor() const { return Accessor; } 1632a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1633a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 1634a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 1635a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1636a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 1637a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 1638a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 1639a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1640a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 1641a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 1642a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 1643a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1644a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 1645a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 1646a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 1647a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1648a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const Stmt *T) { 1649a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return T->getStmtClass() == ExtVectorElementExprClass; 1650a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 1651a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 1652a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1653a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 1654a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 1655a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 1656d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar 1657d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar virtual void EmitImpl(llvm::Serializer& S) const; 1658d17c24ff8597fe0dee4210639d225bc4f7c5ac04Daniel Dunbar static ExtVectorElementExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 1659a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 1660a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 1661a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 166256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 16639c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 16644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 166556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 166656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 16674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 166856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockExpr(BlockDecl *BD, QualType ty) : Expr(BlockExprClass, ty), 166956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff TheBlock(BD) {} 16709c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 167156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 167256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 167356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 167456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 167556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 167656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 16779c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 16789c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 167956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 16809c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 16819c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 168256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 168356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 168456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 16854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 16869c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 16874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 16884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 16894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 16904eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 16914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 16924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 169356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 16944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual void EmitImpl(llvm::Serializer& S) const; 16959c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff static BlockExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 16964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 16979c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 16984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 16994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 17004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 17014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *D; 17024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 17034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool IsByRef; 17044eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 17054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef) : 17064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef) {} 17074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 17094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 17104eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 17114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 17134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17144eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 17154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff return T->getStmtClass() == BlockDeclRefExprClass; 17164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 17174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 17184eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 17204eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 17214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 17224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17234eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual void EmitImpl(llvm::Serializer& S) const; 17244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static BlockDeclRefExpr* CreateImpl(llvm::Deserializer& D, ASTContext& C); 17254eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 17264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 17275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 1730