LangOptions.h revision b0ff33a9f4b2a75b6949976bbf3782ff0d839cb1 
1//===--- LangOptions.h - C Language Family Language Options -----*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file was developed by Chris Lattner and is distributed under
6// the University of Illinois Open Source License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10//  This file defines the LangOptions interface.
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_CLANG_LANGOPTIONS_H
15#define LLVM_CLANG_LANGOPTIONS_H
16
17namespace clang {
18
19/// LangOptions - This class keeps track of the various options that can be
20/// enabled, which controls the dialect of C that is accepted.
21struct LangOptions {
22  unsigned Trigraphs         : 1;  // Trigraphs in source files.
23  unsigned BCPLComment       : 1;  // BCPL-style // comments.
24  unsigned DollarIdents      : 1;  // '$' allowed in identifiers.
25  unsigned Digraphs          : 1;  // When added to C?  C99?
26  unsigned HexFloats         : 1;  // C99 Hexadecimal float constants.
27  unsigned C99               : 1;  // C99 Support
28  unsigned Microsoft         : 1;  // Microsoft extensions.
29  unsigned CPlusPlus         : 1;  // C++ Support
30  unsigned CPlusPlus0x       : 1;  // C++0x Support
31  unsigned NoExtensions      : 1;  // All extensions are disabled, strict mode.
32  unsigned CXXOperatorNames  : 1;  // Treat C++ operator names as keywords.
33
34  unsigned ObjC1             : 1;  // Objective C 1 support enabled.
35  unsigned ObjC2             : 1;  // Objective C 2 support enabled.
36
37  unsigned PascalStrings     : 1;  // Allow Pascal strings
38  unsigned Boolean           : 1;  // Allow bool/true/false
39  unsigned WritableStrings   : 1;  // Allow writable strings
40  unsigned LaxVectorConversions : 1;
41
42  LangOptions() {
43    Trigraphs = BCPLComment = DollarIdents = Digraphs = HexFloats = 0;
44    ObjC1 = ObjC2 = 0;
45    C99 = Microsoft = CPlusPlus = CPlusPlus0x = NoExtensions = 0;
46    CXXOperatorNames = PascalStrings = Boolean = WritableStrings = 0;
47    LaxVectorConversions = 0;
48  }
49};
50
51}  // end namespace clang
52
53#endif
54