1 | // |
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo |
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3 | // |
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4 | // The contents of this file are covered under the licence agreement in the |
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5 | // file "LICENCE" distributed with Cforall. |
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6 | // |
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7 | // ExpressionNode.cc -- |
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8 | // |
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9 | // Author : Peter A. Buhr |
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10 | // Created On : Sat May 16 13:17:07 2015 |
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11 | // Last Modified By : Peter A. Buhr |
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12 | // Last Modified On : Wed Sep 27 22:51:55 2017 |
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13 | // Update Count : 781 |
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14 | // |
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15 | |
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16 | #include <cassert> // for assert |
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17 | #include <stdio.h> // for sscanf, size_t |
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18 | #include <climits> // for LLONG_MAX, LONG_MAX, INT_MAX, UINT... |
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19 | #include <list> // for list |
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20 | #include <sstream> // for basic_istream::operator>>, basic_i... |
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21 | #include <string> // for string, operator+, operator== |
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22 | |
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23 | #include "Common/SemanticError.h" // for SemanticError |
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24 | #include "Common/utility.h" // for maybeMoveBuild, maybeBuild, CodeLo... |
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25 | #include "ParseNode.h" // for ExpressionNode, maybeMoveBuildType |
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26 | #include "SynTree/Constant.h" // for Constant |
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27 | #include "SynTree/Declaration.h" // for EnumDecl, StructDecl, UnionDecl |
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28 | #include "SynTree/Expression.h" // for Expression, ConstantExpr, NameExpr |
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29 | #include "SynTree/Statement.h" // for CompoundStmt, Statement |
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30 | #include "SynTree/Type.h" // for BasicType, Type, Type::Qualifiers |
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31 | #include "parserutility.h" // for notZeroExpr |
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32 | |
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33 | class Initializer; |
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34 | |
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35 | using namespace std; |
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36 | |
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37 | //############################################################################## |
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38 | |
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39 | // Difficult to separate extra parts of constants during lexing because actions are not allow in the middle of patterns: |
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40 | // |
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41 | // prefix action constant action suffix |
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42 | // |
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43 | // Alternatively, breaking a pattern using BEGIN does not work if the following pattern can be empty: |
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44 | // |
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45 | // constant BEGIN CONT ... |
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46 | // <CONT>(...)? BEGIN 0 ... // possible empty suffix |
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47 | // |
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48 | // because the CONT rule is NOT triggered if the pattern is empty. Hence, constants are reparsed here to determine their |
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49 | // type. |
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50 | |
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51 | extern const Type::Qualifiers noQualifiers; // no qualifiers on constants |
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52 | |
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53 | static inline bool checkH( char c ) { return c == 'h' || c == 'H'; } |
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54 | static inline bool checkL( char c ) { return c == 'l' || c == 'L'; } |
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55 | static inline bool checkZ( char c ) { return c == 'z' || c == 'Z'; } |
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56 | static inline bool checkU( char c ) { return c == 'u' || c == 'U'; } |
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57 | static inline bool checkF( char c ) { return c == 'f' || c == 'F'; } |
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58 | static inline bool checkD( char c ) { return c == 'd' || c == 'D'; } |
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59 | static inline bool checkI( char c ) { return c == 'i' || c == 'I'; } |
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60 | static inline bool checkX( char c ) { return c == 'x' || c == 'X'; } |
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61 | |
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62 | static const char * lnthsInt[2][6] = { |
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63 | { "int8_t", "int16_t", "int32_t", "int64_t", "size_t", }, |
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64 | { "uint8_t", "uint16_t", "uint32_t", "uint64_t", "size_t", } |
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65 | }; // lnthsInt |
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66 | |
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67 | static inline void checkLNInt( string & str, int & lnth, int & size ) { |
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68 | string::size_type posn = str.find_first_of( "lL" ), start = posn; |
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69 | if ( posn == string::npos ) return; |
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70 | size = 4; // assume largest size |
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71 | posn += 1; // advance to size |
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72 | if ( str[posn] == '8' ) { // 8 |
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73 | lnth = 0; |
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74 | } else if ( str[posn] == '1' ) { |
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75 | posn += 1; |
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76 | if ( str[posn] == '6' ) { // 16 |
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77 | lnth = 1; |
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78 | } else { // 128 |
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79 | posn += 1; |
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80 | lnth = 5; |
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81 | } // if |
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82 | } else { |
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83 | if ( str[posn] == '3' ) { // 32 |
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84 | lnth = 2; |
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85 | } else if ( str[posn] == '6' ) { // 64 |
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86 | lnth = 3; |
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87 | } else { |
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88 | assertf( false, "internal error, bad integral length %s", str.c_str() ); |
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89 | } // if |
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90 | posn += 1; |
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91 | } // if |
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92 | str.erase( start, posn - start + 1 ); // remove length suffix |
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93 | } // checkLNInt |
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94 | |
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95 | static void sepNumeric( string & str, string & units ) { |
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96 | string::size_type posn = str.find_first_of( "`" ); |
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97 | if ( posn != string::npos ) { |
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98 | units = "?" + str.substr( posn ); // extract units |
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99 | str.erase( posn ); // remove units |
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100 | } // if |
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101 | } // sepNumeric |
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102 | |
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103 | Expression * build_constantInteger( string & str ) { |
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104 | static const BasicType::Kind kind[2][6] = { |
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105 | // short (h) must be before char (hh) |
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106 | { BasicType::ShortSignedInt, BasicType::SignedChar, BasicType::SignedInt, BasicType::LongSignedInt, BasicType::LongLongSignedInt, BasicType::SignedInt128, }, |
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107 | { BasicType::ShortUnsignedInt, BasicType::UnsignedChar, BasicType::UnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::UnsignedInt128, }, |
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108 | }; |
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109 | |
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110 | string units; |
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111 | sepNumeric( str, units ); // separate constant from units |
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112 | |
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113 | bool dec = true, Unsigned = false; // decimal, unsigned constant |
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114 | int size; // 0 => short, 1 => char, 2 => int, 3 => long int, 4 => long long int, 5 => int128 |
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115 | int lnth = -1; // literal length |
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116 | |
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117 | unsigned long long int v; // converted integral value |
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118 | size_t last = str.length() - 1; // last character of constant |
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119 | Expression * ret; |
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120 | |
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121 | // special constants |
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122 | if ( str == "0" ) { |
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123 | ret = new ConstantExpr( Constant( (Type *)new ZeroType( noQualifiers ), str, (unsigned long long int)0 ) ); |
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124 | goto CLEANUP; |
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125 | } // if |
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126 | if ( str == "1" ) { |
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127 | ret = new ConstantExpr( Constant( (Type *)new OneType( noQualifiers ), str, (unsigned long long int)1 ) ); |
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128 | goto CLEANUP; |
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129 | } // if |
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130 | |
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131 | if ( str[0] == '0' ) { // octal/hex constant ? |
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132 | dec = false; |
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133 | if ( last != 0 && checkX( str[1] ) ) { // hex constant ? |
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134 | sscanf( (char *)str.c_str(), "%llx", &v ); |
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135 | //printf( "%llx %llu\n", v, v ); |
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136 | } else { // octal constant |
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137 | sscanf( (char *)str.c_str(), "%llo", &v ); |
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138 | //printf( "%llo %llu\n", v, v ); |
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139 | } // if |
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140 | } else { // decimal constant ? |
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141 | sscanf( (char *)str.c_str(), "%llu", &v ); |
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142 | //printf( "%llu %llu\n", v, v ); |
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143 | } // if |
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144 | |
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145 | if ( v <= INT_MAX ) { // signed int |
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146 | size = 2; |
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147 | } else if ( v <= UINT_MAX && ! dec ) { // unsigned int |
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148 | size = 2; |
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149 | Unsigned = true; // unsigned |
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150 | } else if ( v <= LONG_MAX ) { // signed long int |
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151 | size = 3; |
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152 | } else if ( v <= ULONG_MAX && ( ! dec || LONG_MAX == LLONG_MAX ) ) { // signed long int |
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153 | size = 3; |
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154 | Unsigned = true; // unsigned long int |
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155 | } else if ( v <= LLONG_MAX ) { // signed long long int |
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156 | size = 4; |
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157 | } else { // unsigned long long int |
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158 | size = 4; |
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159 | Unsigned = true; // unsigned long long int |
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160 | } // if |
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161 | |
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162 | // At least one digit in integer constant, so safe to backup while looking for suffix. |
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163 | |
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164 | if ( checkU( str[last] ) ) { // suffix 'u' ? |
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165 | Unsigned = true; |
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166 | if ( checkL( str[last - 1] ) ) { // suffix 'l' ? |
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167 | size = 3; |
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168 | if ( checkL( str[last - 2] ) ) { // suffix "ll" ? |
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169 | size = 4; |
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170 | } // if |
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171 | } else if ( checkH( str[last - 1] ) ) { // suffix 'h' ? |
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172 | size = 0; |
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173 | if ( checkH( str[last - 2] ) ) { // suffix "hh" ? |
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174 | size = 1; |
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175 | } // if |
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176 | str.erase( last - size - 1, size + 1 ); // remove 'h'/"hh" |
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177 | } else { // suffix "ln" ? |
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178 | checkLNInt( str, lnth, size ); |
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179 | } // if |
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180 | } else if ( checkL( str[ last ] ) ) { // suffix 'l' ? |
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181 | size = 3; |
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182 | if ( checkL( str[last - 1] ) ) { // suffix 'll' ? |
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183 | size = 4; |
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184 | if ( checkU( str[last - 2] ) ) { // suffix 'u' ? |
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185 | Unsigned = true; |
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186 | } // if |
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187 | } else if ( checkU( str[last - 1] ) ) { // suffix 'u' ? |
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188 | Unsigned = true; |
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189 | } // if |
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190 | } else if ( checkH( str[ last ] ) ) { // suffix 'h' ? |
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191 | size = 0; |
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192 | if ( checkH( str[last - 1] ) ) { // suffix "hh" ? |
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193 | size = 1; |
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194 | if ( checkU( str[last - 2] ) ) { // suffix 'u' ? |
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195 | Unsigned = true; |
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196 | } // if |
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197 | } else if ( checkU( str[last - 1] ) ) { // suffix 'u' ? |
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198 | Unsigned = true; |
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199 | } // if |
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200 | str.erase( last - size, size + 1 ); // remove 'h'/"hh" |
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201 | } else if ( checkZ( str[last] ) ) { // suffix 'z' ? |
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202 | lnth = 4; |
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203 | str.erase( last, 1 ); // remove 'z' |
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204 | } else { // suffix "ln" ? |
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205 | checkLNInt( str, lnth, size ); |
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206 | } // if |
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207 | |
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208 | assert( 0 <= size && size < 6 ); |
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209 | // Constant type is correct for overload resolving. |
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210 | ret = new ConstantExpr( Constant( new BasicType( noQualifiers, kind[Unsigned][size] ), str, v ) ); |
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211 | if ( Unsigned && size < 2 ) { // hh or h, less than int ? |
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212 | // int i = -1uh => 65535 not -1, so cast is necessary for unsigned, which unfortunately eliminates warnings for large values. |
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213 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[Unsigned][size] ) ); |
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214 | } else if ( lnth != -1 ) { // explicit length ? |
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215 | if ( lnth == 5 ) { // int128 ? |
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216 | size = 5; |
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217 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[Unsigned][size] ) ); |
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218 | } else { |
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219 | ret = new CastExpr( ret, new TypeInstType( Type::Qualifiers(), lnthsInt[Unsigned][lnth], false ) ); |
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220 | } // if |
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221 | } // if |
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222 | CLEANUP: |
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223 | if ( units.length() != 0 ) { |
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224 | ret = new UntypedExpr( new NameExpr( units ), { ret } ); |
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225 | } // if |
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226 | |
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227 | delete &str; // created by lex |
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228 | return ret; |
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229 | } // build_constantInteger |
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230 | |
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231 | |
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232 | static inline void checkLNFloat( string & str, int & lnth, int & size ) { |
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233 | string::size_type posn = str.find_first_of( "lL" ), start = posn; |
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234 | if ( posn == string::npos ) return; |
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235 | size = 2; // assume largest size |
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236 | lnth = 0; |
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237 | posn += 1; // advance to size |
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238 | if ( str[posn] == '3' ) { // 32 |
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239 | size = 0; |
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240 | } else if ( str[posn] == '6' ) { // 64 |
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241 | size = 1; |
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242 | } else if ( str[posn] == '8' || str[posn] == '1' ) { // 80, 128 |
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243 | size = 2; |
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244 | if ( str[posn] == '1' ) posn += 1; |
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245 | } else { |
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246 | assertf( false, "internal error, bad floating point length %s", str.c_str() ); |
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247 | } // if |
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248 | posn += 1; |
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249 | str.erase( start, posn - start + 1 ); // remove length suffix |
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250 | } // checkLNFloat |
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251 | |
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252 | |
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253 | Expression * build_constantFloat( string & str ) { |
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254 | static const BasicType::Kind kind[2][3] = { |
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255 | { BasicType::Float, BasicType::Double, BasicType::LongDouble }, |
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256 | { BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex }, |
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257 | }; |
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258 | |
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259 | string units; |
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260 | sepNumeric( str, units ); // separate constant from units |
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261 | |
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262 | bool complx = false; // real, complex |
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263 | int size = 1; // 0 => float, 1 => double, 2 => long double |
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264 | int lnth = -1; // literal length |
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265 | // floating-point constant has minimum of 2 characters: 1. or .1 |
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266 | size_t last = str.length() - 1; |
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267 | double v; |
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268 | |
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269 | sscanf( str.c_str(), "%lg", &v ); |
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270 | |
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271 | if ( checkI( str[last] ) ) { // imaginary ? |
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272 | complx = true; |
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273 | last -= 1; // backup one character |
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274 | } // if |
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275 | |
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276 | if ( checkF( str[last] ) ) { // float ? |
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277 | size = 0; |
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278 | } else if ( checkD( str[last] ) ) { // double ? |
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279 | size = 1; |
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280 | } else if ( checkL( str[last] ) ) { // long double ? |
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281 | size = 2; |
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282 | } else { |
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283 | size = 1; // double (default) |
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284 | checkLNFloat( str, lnth, size ); |
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285 | } // if |
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286 | if ( ! complx && checkI( str[last - 1] ) ) { // imaginary ? |
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287 | complx = true; |
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288 | } // if |
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289 | |
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290 | assert( 0 <= size && size < 3 ); |
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291 | Expression * ret = new ConstantExpr( Constant( new BasicType( noQualifiers, kind[complx][size] ), str, v ) ); |
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292 | if ( lnth != -1 ) { // explicit length ? |
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293 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[complx][size] ) ); |
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294 | } // if |
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295 | if ( units.length() != 0 ) { |
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296 | ret = new UntypedExpr( new NameExpr( units ), { ret } ); |
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297 | } // if |
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298 | |
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299 | delete &str; // created by lex |
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300 | return ret; |
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301 | } // build_constantFloat |
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302 | |
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303 | static void sepString( string & str, string & units, char delimit ) { |
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304 | string::size_type posn = str.find_last_of( delimit ) + 1; |
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305 | if ( posn != str.length() ) { |
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306 | units = "?" + str.substr( posn ); // extract units |
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307 | str.erase( posn ); // remove units |
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308 | } // if |
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309 | } // sepString |
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310 | |
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311 | Expression * build_constantChar( string & str ) { |
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312 | string units; // units |
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313 | sepString( str, units, '\'' ); // separate constant from units |
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314 | |
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315 | Expression * ret = new ConstantExpr( Constant( new BasicType( noQualifiers, BasicType::Char ), str, (unsigned long long int)(unsigned char)str[1] ) ); |
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316 | if ( units.length() != 0 ) { |
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317 | ret = new UntypedExpr( new NameExpr( units ), { ret } ); |
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318 | } // if |
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319 | |
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320 | delete &str; // created by lex |
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321 | return ret; |
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322 | } // build_constantChar |
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323 | |
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324 | Expression * build_constantStr( string & str ) { |
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325 | string units; // units |
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326 | sepString( str, units, '"' ); // separate constant from units |
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327 | |
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328 | Type * strtype; |
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329 | switch ( str[0] ) { // str has >= 2 characters, i.e, null string "" => safe to look at subscripts 0/1 |
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330 | case 'u': |
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331 | if ( str[1] == '8' ) goto Default; // utf-8 characters => array of char |
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332 | // lookup type of associated typedef |
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333 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "char16_t", false ); |
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334 | break; |
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335 | case 'U': |
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336 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "char32_t", false ); |
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337 | break; |
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338 | case 'L': |
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339 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "wchar_t", false ); |
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340 | break; |
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341 | Default: // char default string type |
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342 | default: |
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343 | strtype = new BasicType( Type::Qualifiers( Type::Const ), BasicType::Char ); |
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344 | } // switch |
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345 | ArrayType * at = new ArrayType( noQualifiers, strtype, |
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346 | new ConstantExpr( Constant::from_ulong( str.size() + 1 - 2 ) ), // +1 for '\0' and -2 for '"' |
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347 | false, false ); |
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348 | Expression * ret = new ConstantExpr( Constant( at, str, (unsigned long long int)0 ) ); // constant 0 is ignored for pure string value |
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349 | if ( units.length() != 0 ) { |
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350 | ret = new UntypedExpr( new NameExpr( units ), { ret } ); |
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351 | } // if |
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352 | |
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353 | delete &str; // created by lex |
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354 | return ret; |
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355 | } // build_constantStr |
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356 | |
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357 | Expression * build_field_name_FLOATING_FRACTIONconstant( const string & str ) { |
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358 | if ( str.find_first_not_of( "0123456789", 1 ) != string::npos ) throw SemanticError( "invalid tuple index " + str ); |
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359 | Expression * ret = build_constantInteger( *new string( str.substr(1) ) ); |
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360 | delete &str; |
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361 | return ret; |
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362 | } // build_field_name_FLOATING_FRACTIONconstant |
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363 | |
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364 | Expression * build_field_name_FLOATING_DECIMALconstant( const string & str ) { |
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365 | if ( str[str.size()-1] != '.' ) throw SemanticError( "invalid tuple index " + str ); |
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366 | Expression * ret = build_constantInteger( *new string( str.substr( 0, str.size()-1 ) ) ); |
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367 | delete &str; |
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368 | return ret; |
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369 | } // build_field_name_FLOATING_DECIMALconstant |
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370 | |
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371 | Expression * build_field_name_FLOATINGconstant( const string & str ) { |
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372 | // str is of the form A.B -> separate at the . and return member expression |
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373 | int a, b; |
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374 | char dot; |
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375 | stringstream ss( str ); |
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376 | ss >> a >> dot >> b; |
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377 | UntypedMemberExpr * ret = new UntypedMemberExpr( new ConstantExpr( Constant::from_int( b ) ), new ConstantExpr( Constant::from_int( a ) ) ); |
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378 | delete &str; |
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379 | return ret; |
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380 | } // build_field_name_FLOATINGconstant |
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381 | |
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382 | Expression * make_field_name_fraction_constants( Expression * fieldName, Expression * fracts ) { |
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383 | if ( fracts ) { |
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384 | if ( UntypedMemberExpr * memberExpr = dynamic_cast< UntypedMemberExpr * >( fracts ) ) { |
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385 | memberExpr->set_member( make_field_name_fraction_constants( fieldName, memberExpr->get_aggregate() ) ); |
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386 | return memberExpr; |
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387 | } else { |
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388 | return new UntypedMemberExpr( fracts, fieldName ); |
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389 | } // if |
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390 | } // if |
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391 | return fieldName; |
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392 | } // make_field_name_fraction_constants |
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393 | |
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394 | Expression * build_field_name_fraction_constants( Expression * fieldName, ExpressionNode * fracts ) { |
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395 | return make_field_name_fraction_constants( fieldName, maybeMoveBuild< Expression >( fracts ) ); |
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396 | } // build_field_name_fraction_constants |
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397 | |
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398 | NameExpr * build_varref( const string * name ) { |
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399 | NameExpr * expr = new NameExpr( *name ); |
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400 | delete name; |
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401 | return expr; |
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402 | } // build_varref |
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403 | |
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404 | // TODO: get rid of this and OperKinds and reuse code from OperatorTable |
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405 | static const char * OperName[] = { // must harmonize with OperKinds |
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406 | // diadic |
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407 | "SizeOf", "AlignOf", "OffsetOf", "?+?", "?-?", "?\\?", "?*?", "?/?", "?%?", "||", "&&", |
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408 | "?|?", "?&?", "?^?", "Cast", "?<<?", "?>>?", "?<?", "?>?", "?<=?", "?>=?", "?==?", "?!=?", |
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409 | "?=?", "?@=?", "?\\=?", "?*=?", "?/=?", "?%=?", "?+=?", "?-=?", "?<<=?", "?>>=?", "?&=?", "?^=?", "?|=?", |
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410 | "?[?]", "...", |
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411 | // monadic |
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412 | "+?", "-?", "AddressOf", "*?", "!?", "~?", "++?", "?++", "--?", "?--", |
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413 | }; // OperName |
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414 | |
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415 | Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node ) { |
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416 | Type * targetType = maybeMoveBuildType( decl_node ); |
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417 | if ( dynamic_cast< VoidType * >( targetType ) ) { |
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418 | delete targetType; |
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419 | return new CastExpr( maybeMoveBuild< Expression >(expr_node) ); |
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420 | } else { |
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421 | return new CastExpr( maybeMoveBuild< Expression >(expr_node), targetType ); |
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422 | } // if |
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423 | } // build_cast |
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424 | |
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425 | Expression * build_virtual_cast( DeclarationNode * decl_node, ExpressionNode * expr_node ) { |
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426 | return new VirtualCastExpr( maybeMoveBuild< Expression >( expr_node ), maybeMoveBuildType( decl_node ) ); |
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427 | } // build_virtual_cast |
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428 | |
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429 | Expression * build_fieldSel( ExpressionNode * expr_node, Expression * member ) { |
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430 | return new UntypedMemberExpr( member, maybeMoveBuild< Expression >(expr_node) ); |
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431 | } // build_fieldSel |
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432 | |
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433 | Expression * build_pfieldSel( ExpressionNode * expr_node, Expression * member ) { |
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434 | UntypedExpr * deref = new UntypedExpr( new NameExpr( "*?" ) ); |
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435 | deref->location = expr_node->location; |
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436 | deref->get_args().push_back( maybeMoveBuild< Expression >(expr_node) ); |
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437 | UntypedMemberExpr * ret = new UntypedMemberExpr( member, deref ); |
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438 | return ret; |
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439 | } // build_pfieldSel |
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440 | |
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441 | Expression * build_offsetOf( DeclarationNode * decl_node, NameExpr * member ) { |
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442 | Expression * ret = new UntypedOffsetofExpr( maybeMoveBuildType( decl_node ), member->get_name() ); |
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443 | delete member; |
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444 | return ret; |
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445 | } // build_offsetOf |
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446 | |
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447 | Expression * build_and_or( ExpressionNode * expr_node1, ExpressionNode * expr_node2, bool kind ) { |
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448 | return new LogicalExpr( notZeroExpr( maybeMoveBuild< Expression >(expr_node1) ), notZeroExpr( maybeMoveBuild< Expression >(expr_node2) ), kind ); |
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449 | } // build_and_or |
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450 | |
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451 | Expression * build_unary_val( OperKinds op, ExpressionNode * expr_node ) { |
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452 | list< Expression * > args; |
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453 | args.push_back( maybeMoveBuild< Expression >(expr_node) ); |
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454 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args ); |
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455 | } // build_unary_val |
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456 | |
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457 | Expression * build_unary_ptr( OperKinds op, ExpressionNode * expr_node ) { |
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458 | list< Expression * > args; |
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459 | args.push_back( maybeMoveBuild< Expression >(expr_node) ); // xxx -- this is exactly the same as the val case now, refactor this code. |
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460 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args ); |
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461 | } // build_unary_ptr |
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462 | |
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463 | Expression * build_binary_val( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 ) { |
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464 | list< Expression * > args; |
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465 | args.push_back( maybeMoveBuild< Expression >(expr_node1) ); |
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466 | args.push_back( maybeMoveBuild< Expression >(expr_node2) ); |
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467 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args ); |
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468 | } // build_binary_val |
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469 | |
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470 | Expression * build_binary_ptr( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 ) { |
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471 | list< Expression * > args; |
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472 | args.push_back( maybeMoveBuild< Expression >(expr_node1) ); |
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473 | args.push_back( maybeMoveBuild< Expression >(expr_node2) ); |
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474 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args ); |
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475 | } // build_binary_ptr |
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476 | |
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477 | Expression * build_cond( ExpressionNode * expr_node1, ExpressionNode * expr_node2, ExpressionNode * expr_node3 ) { |
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478 | return new ConditionalExpr( notZeroExpr( maybeMoveBuild< Expression >(expr_node1) ), maybeMoveBuild< Expression >(expr_node2), maybeMoveBuild< Expression >(expr_node3) ); |
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479 | } // build_cond |
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480 | |
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481 | Expression * build_tuple( ExpressionNode * expr_node ) { |
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482 | list< Expression * > exprs; |
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483 | buildMoveList( expr_node, exprs ); |
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484 | return new UntypedTupleExpr( exprs );; |
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485 | } // build_tuple |
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486 | |
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487 | Expression * build_func( ExpressionNode * function, ExpressionNode * expr_node ) { |
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488 | list< Expression * > args; |
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489 | buildMoveList( expr_node, args ); |
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490 | return new UntypedExpr( maybeMoveBuild< Expression >(function), args ); |
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491 | } // build_func |
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492 | |
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493 | Expression * build_compoundLiteral( DeclarationNode * decl_node, InitializerNode * kids ) { |
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494 | Declaration * newDecl = maybeBuild< Declaration >(decl_node); // compound literal type |
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495 | if ( DeclarationWithType * newDeclWithType = dynamic_cast< DeclarationWithType * >( newDecl ) ) { // non-sue compound-literal type |
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496 | return new CompoundLiteralExpr( newDeclWithType->get_type(), maybeMoveBuild< Initializer >(kids) ); |
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497 | // these types do not have associated type information |
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498 | } else if ( StructDecl * newDeclStructDecl = dynamic_cast< StructDecl * >( newDecl ) ) { |
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499 | if ( newDeclStructDecl->has_body() ) { |
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500 | return new CompoundLiteralExpr( new StructInstType( Type::Qualifiers(), newDeclStructDecl ), maybeMoveBuild< Initializer >(kids) ); |
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501 | } else { |
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502 | return new CompoundLiteralExpr( new StructInstType( Type::Qualifiers(), newDeclStructDecl->get_name() ), maybeMoveBuild< Initializer >(kids) ); |
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503 | } // if |
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504 | } else if ( UnionDecl * newDeclUnionDecl = dynamic_cast< UnionDecl * >( newDecl ) ) { |
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505 | if ( newDeclUnionDecl->has_body() ) { |
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506 | return new CompoundLiteralExpr( new UnionInstType( Type::Qualifiers(), newDeclUnionDecl ), maybeMoveBuild< Initializer >(kids) ); |
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507 | } else { |
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508 | return new CompoundLiteralExpr( new UnionInstType( Type::Qualifiers(), newDeclUnionDecl->get_name() ), maybeMoveBuild< Initializer >(kids) ); |
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509 | } // if |
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510 | } else if ( EnumDecl * newDeclEnumDecl = dynamic_cast< EnumDecl * >( newDecl ) ) { |
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511 | if ( newDeclEnumDecl->has_body() ) { |
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512 | return new CompoundLiteralExpr( new EnumInstType( Type::Qualifiers(), newDeclEnumDecl ), maybeMoveBuild< Initializer >(kids) ); |
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513 | } else { |
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514 | return new CompoundLiteralExpr( new EnumInstType( Type::Qualifiers(), newDeclEnumDecl->get_name() ), maybeMoveBuild< Initializer >(kids) ); |
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515 | } // if |
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516 | } else { |
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517 | assert( false ); |
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518 | } // if |
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519 | } // build_compoundLiteral |
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520 | |
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521 | // Local Variables: // |
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522 | // tab-width: 4 // |
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523 | // mode: c++ // |
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524 | // compile-command: "make install" // |
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525 | // End: // |
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