| 1 | //
|
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
|
|---|
| 3 | //
|
|---|
| 4 | // The contents of this file are covered under the licence agreement in the
|
|---|
| 5 | // file "LICENCE" distributed with Cforall.
|
|---|
| 6 | //
|
|---|
| 7 | // ExpressionNode.cc --
|
|---|
| 8 | //
|
|---|
| 9 | // Author : Peter A. Buhr
|
|---|
| 10 | // Created On : Sat May 16 13:17:07 2015
|
|---|
| 11 | // Last Modified By : Peter A. Buhr
|
|---|
| 12 | // Last Modified On : Thu Mar 22 11:57:39 2018
|
|---|
| 13 | // Update Count : 801
|
|---|
| 14 | //
|
|---|
| 15 |
|
|---|
| 16 | #include <cassert> // for assert
|
|---|
| 17 | #include <stdio.h> // for sscanf, size_t
|
|---|
| 18 | #include <climits> // for LLONG_MAX, LONG_MAX, INT_MAX, UINT...
|
|---|
| 19 | #include <list> // for list
|
|---|
| 20 | #include <sstream> // for basic_istream::operator>>, basic_i...
|
|---|
| 21 | #include <string> // for string, operator+, operator==
|
|---|
| 22 |
|
|---|
| 23 | #include "Common/SemanticError.h" // for SemanticError
|
|---|
| 24 | #include "Common/utility.h" // for maybeMoveBuild, maybeBuild, CodeLo...
|
|---|
| 25 | #include "ParseNode.h" // for ExpressionNode, maybeMoveBuildType
|
|---|
| 26 | #include "SynTree/Constant.h" // for Constant
|
|---|
| 27 | #include "SynTree/Declaration.h" // for EnumDecl, StructDecl, UnionDecl
|
|---|
| 28 | #include "SynTree/Expression.h" // for Expression, ConstantExpr, NameExpr
|
|---|
| 29 | #include "SynTree/Statement.h" // for CompoundStmt, Statement
|
|---|
| 30 | #include "SynTree/Type.h" // for BasicType, Type, Type::Qualifiers
|
|---|
| 31 | #include "parserutility.h" // for notZeroExpr
|
|---|
| 32 |
|
|---|
| 33 | class Initializer;
|
|---|
| 34 |
|
|---|
| 35 | using namespace std;
|
|---|
| 36 |
|
|---|
| 37 | //##############################################################################
|
|---|
| 38 |
|
|---|
| 39 | // Difficult to separate extra parts of constants during lexing because actions are not allow in the middle of patterns:
|
|---|
| 40 | //
|
|---|
| 41 | // prefix action constant action suffix
|
|---|
| 42 | //
|
|---|
| 43 | // Alternatively, breaking a pattern using BEGIN does not work if the following pattern can be empty:
|
|---|
| 44 | //
|
|---|
| 45 | // constant BEGIN CONT ...
|
|---|
| 46 | // <CONT>(...)? BEGIN 0 ... // possible empty suffix
|
|---|
| 47 | //
|
|---|
| 48 | // because the CONT rule is NOT triggered if the pattern is empty. Hence, constants are reparsed here to determine their
|
|---|
| 49 | // type.
|
|---|
| 50 |
|
|---|
| 51 | extern const Type::Qualifiers noQualifiers; // no qualifiers on constants
|
|---|
| 52 |
|
|---|
| 53 | static inline bool checkH( char c ) { return c == 'h' || c == 'H'; }
|
|---|
| 54 | static inline bool checkL( char c ) { return c == 'l' || c == 'L'; }
|
|---|
| 55 | static inline bool checkZ( char c ) { return c == 'z' || c == 'Z'; }
|
|---|
| 56 | static inline bool checkU( char c ) { return c == 'u' || c == 'U'; }
|
|---|
| 57 | static inline bool checkF( char c ) { return c == 'f' || c == 'F'; }
|
|---|
| 58 | static inline bool checkD( char c ) { return c == 'd' || c == 'D'; }
|
|---|
| 59 | static inline bool checkI( char c ) { return c == 'i' || c == 'I'; }
|
|---|
| 60 | static inline bool checkB( char c ) { return c == 'b' || c == 'B'; }
|
|---|
| 61 | static inline bool checkX( char c ) { return c == 'x' || c == 'X'; }
|
|---|
| 62 |
|
|---|
| 63 | static const char * lnthsInt[2][6] = {
|
|---|
| 64 | { "int8_t", "int16_t", "int32_t", "int64_t", "size_t", },
|
|---|
| 65 | { "uint8_t", "uint16_t", "uint32_t", "uint64_t", "size_t", }
|
|---|
| 66 | }; // lnthsInt
|
|---|
| 67 |
|
|---|
| 68 | static inline void checkLNInt( string & str, int & lnth, int & size ) {
|
|---|
| 69 | string::size_type posn = str.find_first_of( "lL" ), start = posn;
|
|---|
| 70 | if ( posn == string::npos ) return;
|
|---|
| 71 | size = 4; // assume largest size
|
|---|
| 72 | posn += 1; // advance to size
|
|---|
| 73 | if ( str[posn] == '8' ) { // 8
|
|---|
| 74 | lnth = 0;
|
|---|
| 75 | } else if ( str[posn] == '1' ) {
|
|---|
| 76 | posn += 1;
|
|---|
| 77 | if ( str[posn] == '6' ) { // 16
|
|---|
| 78 | lnth = 1;
|
|---|
| 79 | } else { // 128
|
|---|
| 80 | posn += 1;
|
|---|
| 81 | lnth = 5;
|
|---|
| 82 | } // if
|
|---|
| 83 | } else {
|
|---|
| 84 | if ( str[posn] == '3' ) { // 32
|
|---|
| 85 | lnth = 2;
|
|---|
| 86 | } else if ( str[posn] == '6' ) { // 64
|
|---|
| 87 | lnth = 3;
|
|---|
| 88 | } else {
|
|---|
| 89 | assertf( false, "internal error, bad integral length %s", str.c_str() );
|
|---|
| 90 | } // if
|
|---|
| 91 | posn += 1;
|
|---|
| 92 | } // if
|
|---|
| 93 | str.erase( start, posn - start + 1 ); // remove length suffix
|
|---|
| 94 | } // checkLNInt
|
|---|
| 95 |
|
|---|
| 96 | Expression * build_constantInteger( string & str ) {
|
|---|
| 97 | static const BasicType::Kind kind[2][6] = {
|
|---|
| 98 | // short (h) must be before char (hh)
|
|---|
| 99 | { BasicType::ShortSignedInt, BasicType::SignedChar, BasicType::SignedInt, BasicType::LongSignedInt, BasicType::LongLongSignedInt, BasicType::SignedInt128, },
|
|---|
| 100 | { BasicType::ShortUnsignedInt, BasicType::UnsignedChar, BasicType::UnsignedInt, BasicType::LongUnsignedInt, BasicType::LongLongUnsignedInt, BasicType::UnsignedInt128, },
|
|---|
| 101 | };
|
|---|
| 102 |
|
|---|
| 103 | bool dec = true, Unsigned = false; // decimal, unsigned constant
|
|---|
| 104 | int size; // 0 => short, 1 => char, 2 => int, 3 => long int, 4 => long long int, 5 => int128
|
|---|
| 105 | int lnth = -1; // literal length
|
|---|
| 106 |
|
|---|
| 107 | unsigned long long int v; // converted integral value
|
|---|
| 108 | size_t last = str.length() - 1; // last subscript of constant
|
|---|
| 109 | Expression * ret;
|
|---|
| 110 |
|
|---|
| 111 | // special constants
|
|---|
| 112 | if ( str == "0" ) {
|
|---|
| 113 | ret = new ConstantExpr( Constant( (Type *)new ZeroType( noQualifiers ), str, (unsigned long long int)0 ) );
|
|---|
| 114 | goto CLEANUP;
|
|---|
| 115 | } // if
|
|---|
| 116 | if ( str == "1" ) {
|
|---|
| 117 | ret = new ConstantExpr( Constant( (Type *)new OneType( noQualifiers ), str, (unsigned long long int)1 ) );
|
|---|
| 118 | goto CLEANUP;
|
|---|
| 119 | } // if
|
|---|
| 120 |
|
|---|
| 121 | // Cannot be "0"
|
|---|
| 122 |
|
|---|
| 123 | if ( str[0] == '0' ) { // radix character ?
|
|---|
| 124 | dec = false;
|
|---|
| 125 | if ( checkX( str[1] ) ) { // hex constant ?
|
|---|
| 126 | sscanf( (char *)str.c_str(), "%llx", &v );
|
|---|
| 127 | //printf( "%llx %llu\n", v, v );
|
|---|
| 128 | } else if ( checkB( str[1] ) ) { // binary constant ?
|
|---|
| 129 | v = 0;
|
|---|
| 130 | for ( unsigned int i = 2;; i += 1 ) { // compute value
|
|---|
| 131 | if ( str[i] == '1' ) v |= 1;
|
|---|
| 132 | if ( i == last ) break;
|
|---|
| 133 | v <<= 1;
|
|---|
| 134 | } // for
|
|---|
| 135 | //printf( "%llx %llu\n", v, v );
|
|---|
| 136 | } else { // octal constant
|
|---|
| 137 | sscanf( (char *)str.c_str(), "%llo", &v );
|
|---|
| 138 | //printf( "%llo %llu\n", v, v );
|
|---|
| 139 | } // if
|
|---|
| 140 | } else { // decimal constant ?
|
|---|
| 141 | sscanf( (char *)str.c_str(), "%llu", &v );
|
|---|
| 142 | //printf( "%llu %llu\n", v, v );
|
|---|
| 143 | } // if
|
|---|
| 144 |
|
|---|
| 145 | if ( v <= INT_MAX ) { // signed int
|
|---|
| 146 | size = 2;
|
|---|
| 147 | } else if ( v <= UINT_MAX && ! dec ) { // unsigned int
|
|---|
| 148 | size = 2;
|
|---|
| 149 | Unsigned = true; // unsigned
|
|---|
| 150 | } else if ( v <= LONG_MAX ) { // signed long int
|
|---|
| 151 | size = 3;
|
|---|
| 152 | } else if ( v <= ULONG_MAX && ( ! dec || LONG_MAX == LLONG_MAX ) ) { // signed long int
|
|---|
| 153 | size = 3;
|
|---|
| 154 | Unsigned = true; // unsigned long int
|
|---|
| 155 | } else if ( v <= LLONG_MAX ) { // signed long long int
|
|---|
| 156 | size = 4;
|
|---|
| 157 | } else { // unsigned long long int
|
|---|
| 158 | size = 4;
|
|---|
| 159 | Unsigned = true; // unsigned long long int
|
|---|
| 160 | } // if
|
|---|
| 161 |
|
|---|
| 162 | // At least one digit in integer constant, so safe to backup while looking for suffix.
|
|---|
| 163 |
|
|---|
| 164 | if ( checkU( str[last] ) ) { // suffix 'u' ?
|
|---|
| 165 | Unsigned = true;
|
|---|
| 166 | if ( checkL( str[last - 1] ) ) { // suffix 'l' ?
|
|---|
| 167 | size = 3;
|
|---|
| 168 | if ( checkL( str[last - 2] ) ) { // suffix "ll" ?
|
|---|
| 169 | size = 4;
|
|---|
| 170 | } // if
|
|---|
| 171 | } else if ( checkH( str[last - 1] ) ) { // suffix 'h' ?
|
|---|
| 172 | size = 0;
|
|---|
| 173 | if ( checkH( str[last - 2] ) ) { // suffix "hh" ?
|
|---|
| 174 | size = 1;
|
|---|
| 175 | } // if
|
|---|
| 176 | str.erase( last - size - 1, size + 1 ); // remove 'h'/"hh"
|
|---|
| 177 | } else { // suffix "ln" ?
|
|---|
| 178 | checkLNInt( str, lnth, size );
|
|---|
| 179 | } // if
|
|---|
| 180 | } else if ( checkL( str[ last ] ) ) { // suffix 'l' ?
|
|---|
| 181 | size = 3;
|
|---|
| 182 | if ( checkL( str[last - 1] ) ) { // suffix 'll' ?
|
|---|
| 183 | size = 4;
|
|---|
| 184 | if ( checkU( str[last - 2] ) ) { // suffix 'u' ?
|
|---|
| 185 | Unsigned = true;
|
|---|
| 186 | } // if
|
|---|
| 187 | } else if ( checkU( str[last - 1] ) ) { // suffix 'u' ?
|
|---|
| 188 | Unsigned = true;
|
|---|
| 189 | } // if
|
|---|
| 190 | } else if ( checkH( str[ last ] ) ) { // suffix 'h' ?
|
|---|
| 191 | size = 0;
|
|---|
| 192 | if ( checkH( str[last - 1] ) ) { // suffix "hh" ?
|
|---|
| 193 | size = 1;
|
|---|
| 194 | if ( checkU( str[last - 2] ) ) { // suffix 'u' ?
|
|---|
| 195 | Unsigned = true;
|
|---|
| 196 | } // if
|
|---|
| 197 | } else if ( checkU( str[last - 1] ) ) { // suffix 'u' ?
|
|---|
| 198 | Unsigned = true;
|
|---|
| 199 | } // if
|
|---|
| 200 | str.erase( last - size, size + 1 ); // remove 'h'/"hh"
|
|---|
| 201 | } else if ( checkZ( str[last] ) ) { // suffix 'z' ?
|
|---|
| 202 | lnth = 4;
|
|---|
| 203 | str.erase( last, 1 ); // remove 'z'
|
|---|
| 204 | } else { // suffix "ln" ?
|
|---|
| 205 | checkLNInt( str, lnth, size );
|
|---|
| 206 | } // if
|
|---|
| 207 |
|
|---|
| 208 | assert( 0 <= size && size < 6 );
|
|---|
| 209 | // Constant type is correct for overload resolving.
|
|---|
| 210 | ret = new ConstantExpr( Constant( new BasicType( noQualifiers, kind[Unsigned][size] ), str, v ) );
|
|---|
| 211 | if ( Unsigned && size < 2 ) { // hh or h, less than int ?
|
|---|
| 212 | // int i = -1uh => 65535 not -1, so cast is necessary for unsigned, which unfortunately eliminates warnings for large values.
|
|---|
| 213 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[Unsigned][size] ) );
|
|---|
| 214 | } else if ( lnth != -1 ) { // explicit length ?
|
|---|
| 215 | if ( lnth == 5 ) { // int128 ?
|
|---|
| 216 | size = 5;
|
|---|
| 217 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[Unsigned][size] ) );
|
|---|
| 218 | } else {
|
|---|
| 219 | ret = new CastExpr( ret, new TypeInstType( Type::Qualifiers(), lnthsInt[Unsigned][lnth], false ) );
|
|---|
| 220 | } // if
|
|---|
| 221 | } // if
|
|---|
| 222 | CLEANUP:
|
|---|
| 223 |
|
|---|
| 224 | delete &str; // created by lex
|
|---|
| 225 | return ret;
|
|---|
| 226 | } // build_constantInteger
|
|---|
| 227 |
|
|---|
| 228 |
|
|---|
| 229 | static inline void checkLNFloat( string & str, int & lnth, int & size ) {
|
|---|
| 230 | string::size_type posn = str.find_first_of( "lL" ), start = posn;
|
|---|
| 231 | if ( posn == string::npos ) return;
|
|---|
| 232 | size = 2; // assume largest size
|
|---|
| 233 | lnth = 0;
|
|---|
| 234 | posn += 1; // advance to size
|
|---|
| 235 | if ( str[posn] == '3' ) { // 32
|
|---|
| 236 | size = 0;
|
|---|
| 237 | } else if ( str[posn] == '6' ) { // 64
|
|---|
| 238 | size = 1;
|
|---|
| 239 | } else if ( str[posn] == '8' || str[posn] == '1' ) { // 80, 128
|
|---|
| 240 | size = 2;
|
|---|
| 241 | if ( str[posn] == '1' ) posn += 1;
|
|---|
| 242 | } else {
|
|---|
| 243 | assertf( false, "internal error, bad floating point length %s", str.c_str() );
|
|---|
| 244 | } // if
|
|---|
| 245 | posn += 1;
|
|---|
| 246 | str.erase( start, posn - start + 1 ); // remove length suffix
|
|---|
| 247 | } // checkLNFloat
|
|---|
| 248 |
|
|---|
| 249 |
|
|---|
| 250 | Expression * build_constantFloat( string & str ) {
|
|---|
| 251 | static const BasicType::Kind kind[2][3] = {
|
|---|
| 252 | { BasicType::Float, BasicType::Double, BasicType::LongDouble },
|
|---|
| 253 | { BasicType::FloatComplex, BasicType::DoubleComplex, BasicType::LongDoubleComplex },
|
|---|
| 254 | };
|
|---|
| 255 |
|
|---|
| 256 | bool complx = false; // real, complex
|
|---|
| 257 | int size = 1; // 0 => float, 1 => double, 2 => long double
|
|---|
| 258 | int lnth = -1; // literal length
|
|---|
| 259 | // floating-point constant has minimum of 2 characters: 1. or .1
|
|---|
| 260 | size_t last = str.length() - 1;
|
|---|
| 261 | double v;
|
|---|
| 262 |
|
|---|
| 263 | sscanf( str.c_str(), "%lg", &v );
|
|---|
| 264 |
|
|---|
| 265 | if ( checkI( str[last] ) ) { // imaginary ?
|
|---|
| 266 | complx = true;
|
|---|
| 267 | last -= 1; // backup one character
|
|---|
| 268 | } // if
|
|---|
| 269 |
|
|---|
| 270 | if ( checkF( str[last] ) ) { // float ?
|
|---|
| 271 | size = 0;
|
|---|
| 272 | } else if ( checkD( str[last] ) ) { // double ?
|
|---|
| 273 | size = 1;
|
|---|
| 274 | } else if ( checkL( str[last] ) ) { // long double ?
|
|---|
| 275 | size = 2;
|
|---|
| 276 | } else {
|
|---|
| 277 | size = 1; // double (default)
|
|---|
| 278 | checkLNFloat( str, lnth, size );
|
|---|
| 279 | } // if
|
|---|
| 280 | if ( ! complx && checkI( str[last - 1] ) ) { // imaginary ?
|
|---|
| 281 | complx = true;
|
|---|
| 282 | } // if
|
|---|
| 283 |
|
|---|
| 284 | assert( 0 <= size && size < 3 );
|
|---|
| 285 | Expression * ret = new ConstantExpr( Constant( new BasicType( noQualifiers, kind[complx][size] ), str, v ) );
|
|---|
| 286 | if ( lnth != -1 ) { // explicit length ?
|
|---|
| 287 | ret = new CastExpr( ret, new BasicType( Type::Qualifiers(), kind[complx][size] ) );
|
|---|
| 288 | } // if
|
|---|
| 289 |
|
|---|
| 290 | delete &str; // created by lex
|
|---|
| 291 | return ret;
|
|---|
| 292 | } // build_constantFloat
|
|---|
| 293 |
|
|---|
| 294 | static void sepString( string & str, string & units, char delimit ) {
|
|---|
| 295 | string::size_type posn = str.find_last_of( delimit ) + 1;
|
|---|
| 296 | if ( posn != str.length() ) {
|
|---|
| 297 | units = "?" + str.substr( posn ); // extract units
|
|---|
| 298 | str.erase( posn ); // remove units
|
|---|
| 299 | } // if
|
|---|
| 300 | } // sepString
|
|---|
| 301 |
|
|---|
| 302 | Expression * build_constantChar( string & str ) {
|
|---|
| 303 | string units; // units
|
|---|
| 304 | sepString( str, units, '\'' ); // separate constant from units
|
|---|
| 305 |
|
|---|
| 306 | Expression * ret = new ConstantExpr( Constant( new BasicType( noQualifiers, BasicType::Char ), str, (unsigned long long int)(unsigned char)str[1] ) );
|
|---|
| 307 | if ( units.length() != 0 ) {
|
|---|
| 308 | ret = new UntypedExpr( new NameExpr( units ), { ret } );
|
|---|
| 309 | } // if
|
|---|
| 310 |
|
|---|
| 311 | delete &str; // created by lex
|
|---|
| 312 | return ret;
|
|---|
| 313 | } // build_constantChar
|
|---|
| 314 |
|
|---|
| 315 | Expression * build_constantStr( string & str ) {
|
|---|
| 316 | string units; // units
|
|---|
| 317 | sepString( str, units, '"' ); // separate constant from units
|
|---|
| 318 |
|
|---|
| 319 | Type * strtype;
|
|---|
| 320 | switch ( str[0] ) { // str has >= 2 characters, i.e, null string "" => safe to look at subscripts 0/1
|
|---|
| 321 | case 'u':
|
|---|
| 322 | if ( str[1] == '8' ) goto Default; // utf-8 characters => array of char
|
|---|
| 323 | // lookup type of associated typedef
|
|---|
| 324 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "char16_t", false );
|
|---|
| 325 | break;
|
|---|
| 326 | case 'U':
|
|---|
| 327 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "char32_t", false );
|
|---|
| 328 | break;
|
|---|
| 329 | case 'L':
|
|---|
| 330 | strtype = new TypeInstType( Type::Qualifiers( Type::Const ), "wchar_t", false );
|
|---|
| 331 | break;
|
|---|
| 332 | Default: // char default string type
|
|---|
| 333 | default:
|
|---|
| 334 | strtype = new BasicType( Type::Qualifiers( Type::Const ), BasicType::Char );
|
|---|
| 335 | } // switch
|
|---|
| 336 | ArrayType * at = new ArrayType( noQualifiers, strtype,
|
|---|
| 337 | new ConstantExpr( Constant::from_ulong( str.size() + 1 - 2 ) ), // +1 for '\0' and -2 for '"'
|
|---|
| 338 | false, false );
|
|---|
| 339 | Expression * ret = new ConstantExpr( Constant( at, str, (unsigned long long int)0 ) ); // constant 0 is ignored for pure string value
|
|---|
| 340 | if ( units.length() != 0 ) {
|
|---|
| 341 | ret = new UntypedExpr( new NameExpr( units ), { ret } );
|
|---|
| 342 | } // if
|
|---|
| 343 |
|
|---|
| 344 | delete &str; // created by lex
|
|---|
| 345 | return ret;
|
|---|
| 346 | } // build_constantStr
|
|---|
| 347 |
|
|---|
| 348 | Expression * build_field_name_FLOATING_FRACTIONconstant( const string & str ) {
|
|---|
| 349 | if ( str.find_first_not_of( "0123456789", 1 ) != string::npos ) SemanticError( yylloc, "invalid tuple index " + str );
|
|---|
| 350 | Expression * ret = build_constantInteger( *new string( str.substr(1) ) );
|
|---|
| 351 | delete &str;
|
|---|
| 352 | return ret;
|
|---|
| 353 | } // build_field_name_FLOATING_FRACTIONconstant
|
|---|
| 354 |
|
|---|
| 355 | Expression * build_field_name_FLOATING_DECIMALconstant( const string & str ) {
|
|---|
| 356 | if ( str[str.size()-1] != '.' ) SemanticError( yylloc, "invalid tuple index " + str );
|
|---|
| 357 | Expression * ret = build_constantInteger( *new string( str.substr( 0, str.size()-1 ) ) );
|
|---|
| 358 | delete &str;
|
|---|
| 359 | return ret;
|
|---|
| 360 | } // build_field_name_FLOATING_DECIMALconstant
|
|---|
| 361 |
|
|---|
| 362 | Expression * build_field_name_FLOATINGconstant( const string & str ) {
|
|---|
| 363 | // str is of the form A.B -> separate at the . and return member expression
|
|---|
| 364 | int a, b;
|
|---|
| 365 | char dot;
|
|---|
| 366 | stringstream ss( str );
|
|---|
| 367 | ss >> a >> dot >> b;
|
|---|
| 368 | UntypedMemberExpr * ret = new UntypedMemberExpr( new ConstantExpr( Constant::from_int( b ) ), new ConstantExpr( Constant::from_int( a ) ) );
|
|---|
| 369 | delete &str;
|
|---|
| 370 | return ret;
|
|---|
| 371 | } // build_field_name_FLOATINGconstant
|
|---|
| 372 |
|
|---|
| 373 | Expression * make_field_name_fraction_constants( Expression * fieldName, Expression * fracts ) {
|
|---|
| 374 | if ( fracts ) {
|
|---|
| 375 | if ( UntypedMemberExpr * memberExpr = dynamic_cast< UntypedMemberExpr * >( fracts ) ) {
|
|---|
| 376 | memberExpr->set_member( make_field_name_fraction_constants( fieldName, memberExpr->get_aggregate() ) );
|
|---|
| 377 | return memberExpr;
|
|---|
| 378 | } else {
|
|---|
| 379 | return new UntypedMemberExpr( fracts, fieldName );
|
|---|
| 380 | } // if
|
|---|
| 381 | } // if
|
|---|
| 382 | return fieldName;
|
|---|
| 383 | } // make_field_name_fraction_constants
|
|---|
| 384 |
|
|---|
| 385 | Expression * build_field_name_fraction_constants( Expression * fieldName, ExpressionNode * fracts ) {
|
|---|
| 386 | return make_field_name_fraction_constants( fieldName, maybeMoveBuild< Expression >( fracts ) );
|
|---|
| 387 | } // build_field_name_fraction_constants
|
|---|
| 388 |
|
|---|
| 389 | NameExpr * build_varref( const string * name ) {
|
|---|
| 390 | NameExpr * expr = new NameExpr( *name );
|
|---|
| 391 | delete name;
|
|---|
| 392 | return expr;
|
|---|
| 393 | } // build_varref
|
|---|
| 394 |
|
|---|
| 395 | // TODO: get rid of this and OperKinds and reuse code from OperatorTable
|
|---|
| 396 | static const char * OperName[] = { // must harmonize with OperKinds
|
|---|
| 397 | // diadic
|
|---|
| 398 | "SizeOf", "AlignOf", "OffsetOf", "?+?", "?-?", "?\\?", "?*?", "?/?", "?%?", "||", "&&",
|
|---|
| 399 | "?|?", "?&?", "?^?", "Cast", "?<<?", "?>>?", "?<?", "?>?", "?<=?", "?>=?", "?==?", "?!=?",
|
|---|
| 400 | "?=?", "?@=?", "?\\=?", "?*=?", "?/=?", "?%=?", "?+=?", "?-=?", "?<<=?", "?>>=?", "?&=?", "?^=?", "?|=?",
|
|---|
| 401 | "?[?]", "...",
|
|---|
| 402 | // monadic
|
|---|
| 403 | "+?", "-?", "AddressOf", "*?", "!?", "~?", "++?", "?++", "--?", "?--",
|
|---|
| 404 | }; // OperName
|
|---|
| 405 |
|
|---|
| 406 | Expression * build_cast( DeclarationNode * decl_node, ExpressionNode * expr_node ) {
|
|---|
| 407 | Type * targetType = maybeMoveBuildType( decl_node );
|
|---|
| 408 | if ( dynamic_cast< VoidType * >( targetType ) ) {
|
|---|
| 409 | delete targetType;
|
|---|
| 410 | return new CastExpr( maybeMoveBuild< Expression >(expr_node) );
|
|---|
| 411 | } else {
|
|---|
| 412 | return new CastExpr( maybeMoveBuild< Expression >(expr_node), targetType );
|
|---|
| 413 | } // if
|
|---|
| 414 | } // build_cast
|
|---|
| 415 |
|
|---|
| 416 | Expression * build_virtual_cast( DeclarationNode * decl_node, ExpressionNode * expr_node ) {
|
|---|
| 417 | return new VirtualCastExpr( maybeMoveBuild< Expression >( expr_node ), maybeMoveBuildType( decl_node ) );
|
|---|
| 418 | } // build_virtual_cast
|
|---|
| 419 |
|
|---|
| 420 | Expression * build_fieldSel( ExpressionNode * expr_node, Expression * member ) {
|
|---|
| 421 | return new UntypedMemberExpr( member, maybeMoveBuild< Expression >(expr_node) );
|
|---|
| 422 | } // build_fieldSel
|
|---|
| 423 |
|
|---|
| 424 | Expression * build_pfieldSel( ExpressionNode * expr_node, Expression * member ) {
|
|---|
| 425 | UntypedExpr * deref = new UntypedExpr( new NameExpr( "*?" ) );
|
|---|
| 426 | deref->location = expr_node->location;
|
|---|
| 427 | deref->get_args().push_back( maybeMoveBuild< Expression >(expr_node) );
|
|---|
| 428 | UntypedMemberExpr * ret = new UntypedMemberExpr( member, deref );
|
|---|
| 429 | return ret;
|
|---|
| 430 | } // build_pfieldSel
|
|---|
| 431 |
|
|---|
| 432 | Expression * build_offsetOf( DeclarationNode * decl_node, NameExpr * member ) {
|
|---|
| 433 | Expression * ret = new UntypedOffsetofExpr( maybeMoveBuildType( decl_node ), member->get_name() );
|
|---|
| 434 | delete member;
|
|---|
| 435 | return ret;
|
|---|
| 436 | } // build_offsetOf
|
|---|
| 437 |
|
|---|
| 438 | Expression * build_and_or( ExpressionNode * expr_node1, ExpressionNode * expr_node2, bool kind ) {
|
|---|
| 439 | return new LogicalExpr( notZeroExpr( maybeMoveBuild< Expression >(expr_node1) ), notZeroExpr( maybeMoveBuild< Expression >(expr_node2) ), kind );
|
|---|
| 440 | } // build_and_or
|
|---|
| 441 |
|
|---|
| 442 | Expression * build_unary_val( OperKinds op, ExpressionNode * expr_node ) {
|
|---|
| 443 | list< Expression * > args;
|
|---|
| 444 | args.push_back( maybeMoveBuild< Expression >(expr_node) );
|
|---|
| 445 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args );
|
|---|
| 446 | } // build_unary_val
|
|---|
| 447 |
|
|---|
| 448 | Expression * build_unary_ptr( OperKinds op, ExpressionNode * expr_node ) {
|
|---|
| 449 | list< Expression * > args;
|
|---|
| 450 | args.push_back( maybeMoveBuild< Expression >(expr_node) ); // xxx -- this is exactly the same as the val case now, refactor this code.
|
|---|
| 451 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args );
|
|---|
| 452 | } // build_unary_ptr
|
|---|
| 453 |
|
|---|
| 454 | Expression * build_binary_val( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 ) {
|
|---|
| 455 | list< Expression * > args;
|
|---|
| 456 | args.push_back( maybeMoveBuild< Expression >(expr_node1) );
|
|---|
| 457 | args.push_back( maybeMoveBuild< Expression >(expr_node2) );
|
|---|
| 458 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args );
|
|---|
| 459 | } // build_binary_val
|
|---|
| 460 |
|
|---|
| 461 | Expression * build_binary_ptr( OperKinds op, ExpressionNode * expr_node1, ExpressionNode * expr_node2 ) {
|
|---|
| 462 | list< Expression * > args;
|
|---|
| 463 | args.push_back( maybeMoveBuild< Expression >(expr_node1) );
|
|---|
| 464 | args.push_back( maybeMoveBuild< Expression >(expr_node2) );
|
|---|
| 465 | return new UntypedExpr( new NameExpr( OperName[ (int)op ] ), args );
|
|---|
| 466 | } // build_binary_ptr
|
|---|
| 467 |
|
|---|
| 468 | Expression * build_cond( ExpressionNode * expr_node1, ExpressionNode * expr_node2, ExpressionNode * expr_node3 ) {
|
|---|
| 469 | return new ConditionalExpr( notZeroExpr( maybeMoveBuild< Expression >(expr_node1) ), maybeMoveBuild< Expression >(expr_node2), maybeMoveBuild< Expression >(expr_node3) );
|
|---|
| 470 | } // build_cond
|
|---|
| 471 |
|
|---|
| 472 | Expression * build_tuple( ExpressionNode * expr_node ) {
|
|---|
| 473 | list< Expression * > exprs;
|
|---|
| 474 | buildMoveList( expr_node, exprs );
|
|---|
| 475 | return new UntypedTupleExpr( exprs );;
|
|---|
| 476 | } // build_tuple
|
|---|
| 477 |
|
|---|
| 478 | Expression * build_func( ExpressionNode * function, ExpressionNode * expr_node ) {
|
|---|
| 479 | list< Expression * > args;
|
|---|
| 480 | buildMoveList( expr_node, args );
|
|---|
| 481 | return new UntypedExpr( maybeMoveBuild< Expression >(function), args );
|
|---|
| 482 | } // build_func
|
|---|
| 483 |
|
|---|
| 484 | Expression * build_compoundLiteral( DeclarationNode * decl_node, InitializerNode * kids ) {
|
|---|
| 485 | Declaration * newDecl = maybeBuild< Declaration >(decl_node); // compound literal type
|
|---|
| 486 | if ( DeclarationWithType * newDeclWithType = dynamic_cast< DeclarationWithType * >( newDecl ) ) { // non-sue compound-literal type
|
|---|
| 487 | return new CompoundLiteralExpr( newDeclWithType->get_type(), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 488 | // these types do not have associated type information
|
|---|
| 489 | } else if ( StructDecl * newDeclStructDecl = dynamic_cast< StructDecl * >( newDecl ) ) {
|
|---|
| 490 | if ( newDeclStructDecl->has_body() ) {
|
|---|
| 491 | return new CompoundLiteralExpr( new StructInstType( Type::Qualifiers(), newDeclStructDecl ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 492 | } else {
|
|---|
| 493 | return new CompoundLiteralExpr( new StructInstType( Type::Qualifiers(), newDeclStructDecl->get_name() ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 494 | } // if
|
|---|
| 495 | } else if ( UnionDecl * newDeclUnionDecl = dynamic_cast< UnionDecl * >( newDecl ) ) {
|
|---|
| 496 | if ( newDeclUnionDecl->has_body() ) {
|
|---|
| 497 | return new CompoundLiteralExpr( new UnionInstType( Type::Qualifiers(), newDeclUnionDecl ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 498 | } else {
|
|---|
| 499 | return new CompoundLiteralExpr( new UnionInstType( Type::Qualifiers(), newDeclUnionDecl->get_name() ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 500 | } // if
|
|---|
| 501 | } else if ( EnumDecl * newDeclEnumDecl = dynamic_cast< EnumDecl * >( newDecl ) ) {
|
|---|
| 502 | if ( newDeclEnumDecl->has_body() ) {
|
|---|
| 503 | return new CompoundLiteralExpr( new EnumInstType( Type::Qualifiers(), newDeclEnumDecl ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 504 | } else {
|
|---|
| 505 | return new CompoundLiteralExpr( new EnumInstType( Type::Qualifiers(), newDeclEnumDecl->get_name() ), maybeMoveBuild< Initializer >(kids) );
|
|---|
| 506 | } // if
|
|---|
| 507 | } else {
|
|---|
| 508 | assert( false );
|
|---|
| 509 | } // if
|
|---|
| 510 | } // build_compoundLiteral
|
|---|
| 511 |
|
|---|
| 512 | // Local Variables: //
|
|---|
| 513 | // tab-width: 4 //
|
|---|
| 514 | // mode: c++ //
|
|---|
| 515 | // compile-command: "make install" //
|
|---|
| 516 | // End: //
|
|---|
