1//===- unittests/Frontend/FrontendActionTest.cpp - FrontendAction tests ---===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include "clang/AST/RecursiveASTVisitor.h"
11#include "clang/AST/ASTConsumer.h"
12#include "clang/Frontend/CompilerInstance.h"
13#include "clang/Frontend/CompilerInvocation.h"
14#include "clang/Frontend/FrontendAction.h"
15
16#include "llvm/ADT/Triple.h"
17#include "llvm/Support/MemoryBuffer.h"
18
19#include "gtest/gtest.h"
20
21using namespace llvm;
22using namespace clang;
23
24namespace {
25
26class TestASTFrontendAction : public ASTFrontendAction {
27public:
28  std::vector<std::string> decl_names;
29
30  virtual ASTConsumer *CreateASTConsumer(CompilerInstance &CI,
31                                         StringRef InFile) {
32    return new Visitor(decl_names);
33  }
34
35private:
36  class Visitor : public ASTConsumer, public RecursiveASTVisitor<Visitor> {
37  public:
38    Visitor(std::vector<std::string> &decl_names) : decl_names_(decl_names) {}
39
40    virtual void HandleTranslationUnit(ASTContext &context) {
41      TraverseDecl(context.getTranslationUnitDecl());
42    }
43
44    virtual bool VisitNamedDecl(NamedDecl *Decl) {
45      decl_names_.push_back(Decl->getQualifiedNameAsString());
46      return true;
47    }
48
49  private:
50    std::vector<std::string> &decl_names_;
51  };
52};
53
54TEST(ASTFrontendAction, Sanity) {
55  CompilerInvocation *invocation = new CompilerInvocation;
56  invocation->getPreprocessorOpts().addRemappedFile(
57    "test.cc", MemoryBuffer::getMemBuffer("int main() { float x; }"));
58  invocation->getFrontendOpts().Inputs.push_back(
59    std::make_pair(IK_CXX, "test.cc"));
60  invocation->getFrontendOpts().ProgramAction = frontend::ParseSyntaxOnly;
61  invocation->getTargetOpts().Triple = "i386-unknown-linux-gnu";
62  CompilerInstance compiler;
63  compiler.setInvocation(invocation);
64  compiler.createDiagnostics(0, NULL);
65
66  TestASTFrontendAction test_action;
67  ASSERT_TRUE(compiler.ExecuteAction(test_action));
68  ASSERT_EQ(3U, test_action.decl_names.size());
69  EXPECT_EQ("__builtin_va_list", test_action.decl_names[0]);
70  EXPECT_EQ("main", test_action.decl_names[1]);
71  EXPECT_EQ("x", test_action.decl_names[2]);
72}
73
74} // anonymous namespace
75