1 | /* -*-C-*- |
---|---|

2 | |

3 | This file contains definitions of the various C++ operators, |

4 | including both overloadable operators (like `+') and |

5 | non-overloadable operators (like the `?:' ternary operator). |

6 | Written by Mark Mitchell <mark@codesourcery.com> |

7 | |

8 | Copyright (C) 2000-2017 Free Software Foundation, Inc. |

9 | |

10 | This file is part of GCC. |

11 | |

12 | GCC is free software; you can redistribute it and/or modify |

13 | it under the terms of the GNU General Public License as published by |

14 | the Free Software Foundation; either version 3, or (at your option) |

15 | any later version. |

16 | |

17 | GCC is distributed in the hope that it will be useful, |

18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |

19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |

20 | GNU General Public License for more details. |

21 | |

22 | You should have received a copy of the GNU General Public License |

23 | along with GCC; see the file COPYING3. If not see |

24 | <http://www.gnu.org/licenses/>. */ |

25 | |

26 | /* The DEF_OPERATOR macro takes the following arguments: |

27 | |

28 | NAME |

29 | |

30 | The name of the operator, as a C string, but without the |

31 | preceding `operator'. This is the name that would be given in |

32 | the source program. For `operator +', for example, this would be |

33 | `+'. |

34 | |

35 | CODE |

36 | |

37 | The tree_code for this operator. For `operator +', for example, |

38 | this would be PLUS_EXPR. Because there are no tree codes for |

39 | assignment operators, the same tree-codes are reused; i.e., |

40 | `operator +' will also have PLUS_EXPR as its CODE. |

41 | |

42 | MANGLING |

43 | |

44 | The mangling prefix for the operator, as a C string, and as |

45 | mangled under the new ABI. For `operator +', for example, this |

46 | would be "pl". |

47 | |

48 | FLAGS |

49 | |

50 | ovl_op_flags bits. Postincrement and postdecrement operators are |

51 | marked as binary. |

52 | |

53 | Before including this file, you should define DEF_OPERATOR |

54 | to take these arguments. |

55 | |

56 | There is code (such as in grok_op_properties) that depends on the |

57 | order the operators are presented in this file. Unary_ops must |

58 | preceed a matching binary op (i.e. '+'). Assignment operators must |

59 | be last, after OPERATOR_TRANSITION. */ |

60 | |

61 | /* Use DEF_ASSN_OPERATOR to define an assignment operator. Its |

62 | arguments are as for DEF_OPERATOR, but there is no need to provide |

63 | FLAGS (OVL_OP_FLAG_BINARY). */ |

64 | |

65 | #ifndef DEF_ASSN_OPERATOR |

66 | #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) \ |

67 | DEF_OPERATOR(NAME, CODE, MANGLING, OVL_OP_FLAG_BINARY) |

68 | #endif |

69 | |

70 | /* Memory allocation operators. ARITY has special meaning. */ |

71 | DEF_OPERATOR ("new", NEW_EXPR, "nw", OVL_OP_FLAG_ALLOC) |

72 | DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na", |

73 | OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_VEC) |

74 | DEF_OPERATOR ("delete", DELETE_EXPR, "dl", |

75 | OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE) |

76 | DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da", |

77 | OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE | OVL_OP_FLAG_VEC) |

78 | |

79 | /* Unary operators. */ |

80 | DEF_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", OVL_OP_FLAG_UNARY) |

81 | DEF_OPERATOR ("-", NEGATE_EXPR, "ng", OVL_OP_FLAG_UNARY) |

82 | DEF_OPERATOR ("&", ADDR_EXPR, "ad", OVL_OP_FLAG_UNARY) |

83 | DEF_OPERATOR ("*", INDIRECT_REF, "de", OVL_OP_FLAG_UNARY) |

84 | DEF_OPERATOR ("~", BIT_NOT_EXPR, "co", OVL_OP_FLAG_UNARY) |

85 | DEF_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", OVL_OP_FLAG_UNARY) |

86 | DEF_OPERATOR ("++", PREINCREMENT_EXPR, "pp", OVL_OP_FLAG_UNARY) |

87 | DEF_OPERATOR ("--", PREDECREMENT_EXPR, "mm", OVL_OP_FLAG_UNARY) |

88 | DEF_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_UNARY) |

89 | DEF_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", OVL_OP_FLAG_UNARY) |

90 | |

91 | /* These are extensions. */ |

92 | DEF_OPERATOR ("alignof", ALIGNOF_EXPR, "az", OVL_OP_FLAG_UNARY) |

93 | DEF_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", OVL_OP_FLAG_UNARY) |

94 | DEF_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", OVL_OP_FLAG_UNARY) |

95 | |

96 | /* Binary operators. */ |

97 | DEF_OPERATOR ("+", PLUS_EXPR, "pl", OVL_OP_FLAG_BINARY) |

98 | DEF_OPERATOR ("-", MINUS_EXPR, "mi", OVL_OP_FLAG_BINARY) |

99 | DEF_OPERATOR ("*", MULT_EXPR, "ml", OVL_OP_FLAG_BINARY) |

100 | DEF_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", OVL_OP_FLAG_BINARY) |

101 | DEF_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", OVL_OP_FLAG_BINARY) |

102 | DEF_OPERATOR ("&", BIT_AND_EXPR, "an", OVL_OP_FLAG_BINARY) |

103 | DEF_OPERATOR ("|", BIT_IOR_EXPR, "or", OVL_OP_FLAG_BINARY) |

104 | DEF_OPERATOR ("^", BIT_XOR_EXPR, "eo", OVL_OP_FLAG_BINARY) |

105 | DEF_OPERATOR ("<<", LSHIFT_EXPR, "ls", OVL_OP_FLAG_BINARY) |

106 | DEF_OPERATOR (">>", RSHIFT_EXPR, "rs", OVL_OP_FLAG_BINARY) |

107 | DEF_OPERATOR ("==", EQ_EXPR, "eq", OVL_OP_FLAG_BINARY) |

108 | DEF_OPERATOR ("!=", NE_EXPR, "ne", OVL_OP_FLAG_BINARY) |

109 | DEF_OPERATOR ("<", LT_EXPR, "lt", OVL_OP_FLAG_BINARY) |

110 | DEF_OPERATOR (">", GT_EXPR, "gt", OVL_OP_FLAG_BINARY) |

111 | DEF_OPERATOR ("<=", LE_EXPR, "le", OVL_OP_FLAG_BINARY) |

112 | DEF_OPERATOR (">=", GE_EXPR, "ge", OVL_OP_FLAG_BINARY) |

113 | DEF_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", OVL_OP_FLAG_BINARY) |

114 | DEF_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", OVL_OP_FLAG_BINARY) |

115 | DEF_OPERATOR (",", COMPOUND_EXPR, "cm", OVL_OP_FLAG_BINARY) |

116 | DEF_OPERATOR ("->*", MEMBER_REF, "pm", OVL_OP_FLAG_BINARY) |

117 | DEF_OPERATOR (".*", DOTSTAR_EXPR, "ds", OVL_OP_FLAG_BINARY) |

118 | DEF_OPERATOR ("[]", ARRAY_REF, "ix", OVL_OP_FLAG_BINARY) |

119 | DEF_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", OVL_OP_FLAG_BINARY) |

120 | DEF_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", OVL_OP_FLAG_BINARY) |

121 | |

122 | /* Miscellaneous. */ |

123 | DEF_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE) |

124 | DEF_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE) |

125 | |

126 | /* Operators needed for mangling. */ |

127 | DEF_OPERATOR (NULL, CAST_EXPR, "cv", OVL_OP_FLAG_UNARY) |

128 | DEF_OPERATOR (NULL, DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_UNARY) |

129 | DEF_OPERATOR (NULL, REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_UNARY) |

130 | DEF_OPERATOR (NULL, CONST_CAST_EXPR, "cc", OVL_OP_FLAG_UNARY) |

131 | DEF_OPERATOR (NULL, STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_UNARY) |

132 | DEF_OPERATOR (NULL, SCOPE_REF, "sr", OVL_OP_FLAG_NONE) |

133 | DEF_OPERATOR (NULL, EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_NONE) |

134 | DEF_OPERATOR (NULL, UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_NONE) |

135 | DEF_OPERATOR (NULL, UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_NONE) |

136 | DEF_OPERATOR (NULL, BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE) |

137 | DEF_OPERATOR (NULL, BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE) |

138 | |

139 | #ifdef OPERATOR_TRANSITION |

140 | OPERATOR_TRANSITION |

141 | #undef OPERATOR_TRANSITION |

142 | #endif |

143 | |

144 | /* Assignment operators. */ |

145 | DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS") |

146 | DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL") |

147 | DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI") |

148 | DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL") |

149 | DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV") |

150 | DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM") |

151 | DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN") |

152 | DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR") |

153 | DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO") |

154 | DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS") |

155 | DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS") |

156 | |

157 | #undef DEF_ASSN_OPERATOR |

158 | #undef DEF_OPERATOR |

159 |