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comparison: gfx/angle/src/compiler/preprocessor/Token.h
gfx/angle/src/compiler/preprocessor/Token.h
- branch
- TOR_BUG_9701
- changeset 3
- 141e0f1194b1
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| -1:000000000000 | 0:1be3031235d0 |
|---|---|
| 1 // | |
| 2 // Copyright (c) 2011 The ANGLE Project Authors. All rights reserved. | |
| 3 // Use of this source code is governed by a BSD-style license that can be | |
| 4 // found in the LICENSE file. | |
| 5 // | |
| 6 | |
| 7 #ifndef COMPILER_PREPROCESSOR_TOKEN_H_ | |
| 8 #define COMPILER_PREPROCESSOR_TOKEN_H_ | |
| 9 | |
| 10 #include <ostream> | |
| 11 #include <string> | |
| 12 | |
| 13 #include "SourceLocation.h" | |
| 14 | |
| 15 namespace pp | |
| 16 { | |
| 17 | |
| 18 struct Token | |
| 19 { | |
| 20 enum Type | |
| 21 { | |
| 22 LAST = 0, // EOF. | |
| 23 | |
| 24 IDENTIFIER = 258, | |
| 25 | |
| 26 CONST_INT, | |
| 27 CONST_FLOAT, | |
| 28 | |
| 29 OP_INC, | |
| 30 OP_DEC, | |
| 31 OP_LEFT, | |
| 32 OP_RIGHT, | |
| 33 OP_LE, | |
| 34 OP_GE, | |
| 35 OP_EQ, | |
| 36 OP_NE, | |
| 37 OP_AND, | |
| 38 OP_XOR, | |
| 39 OP_OR, | |
| 40 OP_ADD_ASSIGN, | |
| 41 OP_SUB_ASSIGN, | |
| 42 OP_MUL_ASSIGN, | |
| 43 OP_DIV_ASSIGN, | |
| 44 OP_MOD_ASSIGN, | |
| 45 OP_LEFT_ASSIGN, | |
| 46 OP_RIGHT_ASSIGN, | |
| 47 OP_AND_ASSIGN, | |
| 48 OP_XOR_ASSIGN, | |
| 49 OP_OR_ASSIGN, | |
| 50 | |
| 51 // Preprocessing token types. | |
| 52 // These types are used by the preprocessor internally. | |
| 53 // Preprocessor clients must not depend or check for them. | |
| 54 PP_HASH, | |
| 55 PP_NUMBER, | |
| 56 PP_OTHER | |
| 57 }; | |
| 58 enum Flags | |
| 59 { | |
| 60 AT_START_OF_LINE = 1 << 0, | |
| 61 HAS_LEADING_SPACE = 1 << 1, | |
| 62 EXPANSION_DISABLED = 1 << 2 | |
| 63 }; | |
| 64 | |
| 65 Token() : type(0), flags(0) { } | |
| 66 | |
| 67 void reset(); | |
| 68 bool equals(const Token& other) const; | |
| 69 | |
| 70 // Returns true if this is the first token on line. | |
| 71 // It disregards any leading whitespace. | |
| 72 bool atStartOfLine() const { return (flags & AT_START_OF_LINE) != 0; } | |
| 73 void setAtStartOfLine(bool start); | |
| 74 | |
| 75 bool hasLeadingSpace() const { return (flags & HAS_LEADING_SPACE) != 0; } | |
| 76 void setHasLeadingSpace(bool space); | |
| 77 | |
| 78 bool expansionDisabled() const { return (flags & EXPANSION_DISABLED) != 0; } | |
| 79 void setExpansionDisabled(bool disable); | |
| 80 | |
| 81 // Converts text into numeric value for CONST_INT and CONST_FLOAT token. | |
| 82 // Returns false if the parsed value cannot fit into an int or float. | |
| 83 bool iValue(int* value) const; | |
| 84 bool uValue(unsigned int* value) const; | |
| 85 bool fValue(float* value) const; | |
| 86 | |
| 87 int type; | |
| 88 unsigned int flags; | |
| 89 SourceLocation location; | |
| 90 std::string text; | |
| 91 }; | |
| 92 | |
| 93 inline bool operator==(const Token& lhs, const Token& rhs) | |
| 94 { | |
| 95 return lhs.equals(rhs); | |
| 96 } | |
| 97 | |
| 98 inline bool operator!=(const Token& lhs, const Token& rhs) | |
| 99 { | |
| 100 return !lhs.equals(rhs); | |
| 101 } | |
| 102 | |
| 103 extern std::ostream& operator<<(std::ostream& out, const Token& token); | |
| 104 | |
| 105 } // namepsace pp | |
| 106 #endif // COMPILER_PREPROCESSOR_TOKEN_H_ |
