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Diffstat (limited to 'chromium/third_party/glslang/src/glslang/MachineIndependent/glslang.y')
| -rw-r--r-- | chromium/third_party/glslang/src/glslang/MachineIndependent/glslang.y | 2703 |
1 files changed, 2703 insertions, 0 deletions
diff --git a/chromium/third_party/glslang/src/glslang/MachineIndependent/glslang.y b/chromium/third_party/glslang/src/glslang/MachineIndependent/glslang.y new file mode 100644 index 00000000000..4f8e3fc108c --- /dev/null +++ b/chromium/third_party/glslang/src/glslang/MachineIndependent/glslang.y @@ -0,0 +1,2703 @@ +// +//Copyright (C) 2002-2005 3Dlabs Inc. Ltd. +//Copyright (C) 2012-2013 LunarG, Inc. +// +//All rights reserved. +// +//Redistribution and use in source and binary forms, with or without +//modification, are permitted provided that the following conditions +//are met: +// +// Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// +// Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// +// Neither the name of 3Dlabs Inc. Ltd. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS +//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE +//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, +//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, +//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +//POSSIBILITY OF SUCH DAMAGE. +// + +/** + * This is bison grammar and productions for parsing all versions of the + * GLSL shading languages. + */ +%{ + +/* Based on: +ANSI C Yacc grammar + +In 1985, Jeff Lee published his Yacc grammar (which is accompanied by a +matching Lex specification) for the April 30, 1985 draft version of the +ANSI C standard. Tom Stockfisch reposted it to net.sources in 1987; that +original, as mentioned in the answer to question 17.25 of the comp.lang.c +FAQ, can be ftp'ed from ftp.uu.net, file usenet/net.sources/ansi.c.grammar.Z. + +I intend to keep this version as close to the current C Standard grammar as +possible; please let me know if you discover discrepancies. + +Jutta Degener, 1995 +*/ + +#include "SymbolTable.h" +#include "ParseHelper.h" +#include "../Public/ShaderLang.h" + +using namespace glslang; + +%} + +%union { + struct { + glslang::TSourceLoc loc; + union { + glslang::TString *string; + int i; + unsigned int u; + long long i64; + unsigned long long u64; + bool b; + double d; + }; + glslang::TSymbol* symbol; + } lex; + struct { + glslang::TSourceLoc loc; + glslang::TOperator op; + union { + TIntermNode* intermNode; + glslang::TIntermNodePair nodePair; + glslang::TIntermTyped* intermTypedNode; + }; + union { + glslang::TPublicType type; + glslang::TFunction* function; + glslang::TParameter param; + glslang::TTypeLoc typeLine; + glslang::TTypeList* typeList; + glslang::TArraySizes* arraySizes; + glslang::TIdentifierList* identifierList; + }; + } interm; +} + +%{ + +/* windows only pragma */ +#ifdef _MSC_VER + #pragma warning(disable : 4065) + #pragma warning(disable : 4127) + #pragma warning(disable : 4244) +#endif + +#define parseContext (*pParseContext) +#define yyerror(context, msg) context->parserError(msg) + +extern int yylex(YYSTYPE*, TParseContext&); + +%} + +%parse-param {glslang::TParseContext* pParseContext} +%lex-param {parseContext} +%pure-parser // enable thread safety +%expect 1 // One shift reduce conflict because of if | else + +%token <lex> ATTRIBUTE VARYING +%token <lex> CONST BOOL FLOAT DOUBLE INT UINT INT64_T UINT64_T +%token <lex> BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN SWITCH CASE DEFAULT SUBROUTINE +%token <lex> BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 I64VEC2 I64VEC3 I64VEC4 UVEC2 UVEC3 UVEC4 U64VEC2 U64VEC3 U64VEC4 VEC2 VEC3 VEC4 +%token <lex> MAT2 MAT3 MAT4 CENTROID IN OUT INOUT +%token <lex> UNIFORM PATCH SAMPLE BUFFER SHARED +%token <lex> COHERENT VOLATILE RESTRICT READONLY WRITEONLY +%token <lex> DVEC2 DVEC3 DVEC4 DMAT2 DMAT3 DMAT4 +%token <lex> NOPERSPECTIVE FLAT SMOOTH LAYOUT + +%token <lex> MAT2X2 MAT2X3 MAT2X4 +%token <lex> MAT3X2 MAT3X3 MAT3X4 +%token <lex> MAT4X2 MAT4X3 MAT4X4 +%token <lex> DMAT2X2 DMAT2X3 DMAT2X4 +%token <lex> DMAT3X2 DMAT3X3 DMAT3X4 +%token <lex> DMAT4X2 DMAT4X3 DMAT4X4 +%token <lex> ATOMIC_UINT + +// combined image/sampler +%token <lex> SAMPLER1D SAMPLER2D SAMPLER3D SAMPLERCUBE SAMPLER1DSHADOW SAMPLER2DSHADOW +%token <lex> SAMPLERCUBESHADOW SAMPLER1DARRAY SAMPLER2DARRAY SAMPLER1DARRAYSHADOW +%token <lex> SAMPLER2DARRAYSHADOW ISAMPLER1D ISAMPLER2D ISAMPLER3D ISAMPLERCUBE +%token <lex> ISAMPLER1DARRAY ISAMPLER2DARRAY USAMPLER1D USAMPLER2D USAMPLER3D +%token <lex> USAMPLERCUBE USAMPLER1DARRAY USAMPLER2DARRAY +%token <lex> SAMPLER2DRECT SAMPLER2DRECTSHADOW ISAMPLER2DRECT USAMPLER2DRECT +%token <lex> SAMPLERBUFFER ISAMPLERBUFFER USAMPLERBUFFER +%token <lex> SAMPLERCUBEARRAY SAMPLERCUBEARRAYSHADOW +%token <lex> ISAMPLERCUBEARRAY USAMPLERCUBEARRAY +%token <lex> SAMPLER2DMS ISAMPLER2DMS USAMPLER2DMS +%token <lex> SAMPLER2DMSARRAY ISAMPLER2DMSARRAY USAMPLER2DMSARRAY +%token <lex> SAMPLEREXTERNALOES + +// pure sampler +%token <lex> SAMPLER SAMPLERSHADOW + +// texture without sampler +%token <lex> TEXTURE1D TEXTURE2D TEXTURE3D TEXTURECUBE +%token <lex> TEXTURE1DARRAY TEXTURE2DARRAY +%token <lex> ITEXTURE1D ITEXTURE2D ITEXTURE3D ITEXTURECUBE +%token <lex> ITEXTURE1DARRAY ITEXTURE2DARRAY UTEXTURE1D UTEXTURE2D UTEXTURE3D +%token <lex> UTEXTURECUBE UTEXTURE1DARRAY UTEXTURE2DARRAY +%token <lex> TEXTURE2DRECT ITEXTURE2DRECT UTEXTURE2DRECT +%token <lex> TEXTUREBUFFER ITEXTUREBUFFER UTEXTUREBUFFER +%token <lex> TEXTURECUBEARRAY ITEXTURECUBEARRAY UTEXTURECUBEARRAY +%token <lex> TEXTURE2DMS ITEXTURE2DMS UTEXTURE2DMS +%token <lex> TEXTURE2DMSARRAY ITEXTURE2DMSARRAY UTEXTURE2DMSARRAY + +// input attachments +%token <lex> SUBPASSINPUT SUBPASSINPUTMS ISUBPASSINPUT ISUBPASSINPUTMS USUBPASSINPUT USUBPASSINPUTMS + +%token <lex> IMAGE1D IIMAGE1D UIMAGE1D IMAGE2D IIMAGE2D +%token <lex> UIMAGE2D IMAGE3D IIMAGE3D UIMAGE3D +%token <lex> IMAGE2DRECT IIMAGE2DRECT UIMAGE2DRECT +%token <lex> IMAGECUBE IIMAGECUBE UIMAGECUBE +%token <lex> IMAGEBUFFER IIMAGEBUFFER UIMAGEBUFFER +%token <lex> IMAGE1DARRAY IIMAGE1DARRAY UIMAGE1DARRAY +%token <lex> IMAGE2DARRAY IIMAGE2DARRAY UIMAGE2DARRAY +%token <lex> IMAGECUBEARRAY IIMAGECUBEARRAY UIMAGECUBEARRAY +%token <lex> IMAGE2DMS IIMAGE2DMS UIMAGE2DMS +%token <lex> IMAGE2DMSARRAY IIMAGE2DMSARRAY UIMAGE2DMSARRAY + +%token <lex> STRUCT VOID WHILE + +%token <lex> IDENTIFIER TYPE_NAME +%token <lex> FLOATCONSTANT DOUBLECONSTANT INTCONSTANT UINTCONSTANT INT64CONSTANT UINT64CONSTANT BOOLCONSTANT +%token <lex> LEFT_OP RIGHT_OP +%token <lex> INC_OP DEC_OP LE_OP GE_OP EQ_OP NE_OP +%token <lex> AND_OP OR_OP XOR_OP MUL_ASSIGN DIV_ASSIGN ADD_ASSIGN +%token <lex> MOD_ASSIGN LEFT_ASSIGN RIGHT_ASSIGN AND_ASSIGN XOR_ASSIGN OR_ASSIGN +%token <lex> SUB_ASSIGN + +%token <lex> LEFT_PAREN RIGHT_PAREN LEFT_BRACKET RIGHT_BRACKET LEFT_BRACE RIGHT_BRACE DOT +%token <lex> COMMA COLON EQUAL SEMICOLON BANG DASH TILDE PLUS STAR SLASH PERCENT +%token <lex> LEFT_ANGLE RIGHT_ANGLE VERTICAL_BAR CARET AMPERSAND QUESTION + +%token <lex> INVARIANT PRECISE +%token <lex> HIGH_PRECISION MEDIUM_PRECISION LOW_PRECISION PRECISION + +%token <lex> PACKED RESOURCE SUPERP + +%type <interm> assignment_operator unary_operator +%type <interm.intermTypedNode> variable_identifier primary_expression postfix_expression +%type <interm.intermTypedNode> expression integer_expression assignment_expression +%type <interm.intermTypedNode> unary_expression multiplicative_expression additive_expression +%type <interm.intermTypedNode> relational_expression equality_expression +%type <interm.intermTypedNode> conditional_expression constant_expression +%type <interm.intermTypedNode> logical_or_expression logical_xor_expression logical_and_expression +%type <interm.intermTypedNode> shift_expression and_expression exclusive_or_expression inclusive_or_expression +%type <interm.intermTypedNode> function_call initializer initializer_list condition conditionopt + +%type <interm.intermNode> translation_unit function_definition +%type <interm.intermNode> statement simple_statement +%type <interm.intermNode> statement_list switch_statement_list compound_statement +%type <interm.intermNode> declaration_statement selection_statement expression_statement +%type <interm.intermNode> switch_statement case_label +%type <interm.intermNode> declaration external_declaration +%type <interm.intermNode> for_init_statement compound_statement_no_new_scope +%type <interm.nodePair> selection_rest_statement for_rest_statement +%type <interm.intermNode> iteration_statement jump_statement statement_no_new_scope statement_scoped +%type <interm> single_declaration init_declarator_list + +%type <interm> parameter_declaration parameter_declarator parameter_type_specifier + +%type <interm> array_specifier +%type <interm.type> precise_qualifier invariant_qualifier interpolation_qualifier storage_qualifier precision_qualifier +%type <interm.type> layout_qualifier layout_qualifier_id_list layout_qualifier_id + +%type <interm.type> type_qualifier fully_specified_type type_specifier +%type <interm.type> single_type_qualifier +%type <interm.type> type_specifier_nonarray +%type <interm.type> struct_specifier +%type <interm.typeLine> struct_declarator +%type <interm.typeList> struct_declarator_list struct_declaration struct_declaration_list type_name_list +%type <interm> block_structure +%type <interm.function> function_header function_declarator +%type <interm.function> function_header_with_parameters +%type <interm> function_call_header_with_parameters function_call_header_no_parameters function_call_generic function_prototype +%type <interm> function_call_or_method function_identifier function_call_header + +%type <interm.identifierList> identifier_list + +%start translation_unit +%% + +variable_identifier + : IDENTIFIER { + $$ = parseContext.handleVariable($1.loc, $1.symbol, $1.string); + } + ; + +primary_expression + : variable_identifier { + $$ = $1; + } + | INTCONSTANT { + $$ = parseContext.intermediate.addConstantUnion($1.i, $1.loc, true); + } + | UINTCONSTANT { + parseContext.fullIntegerCheck($1.loc, "unsigned literal"); + $$ = parseContext.intermediate.addConstantUnion($1.u, $1.loc, true); + } + | INT64CONSTANT { + parseContext.int64Check($1.loc, "64-bit integer literal"); + $$ = parseContext.intermediate.addConstantUnion($1.i64, $1.loc, true); + } + | UINT64CONSTANT { + parseContext.int64Check($1.loc, "64-bit unsigned integer literal"); + $$ = parseContext.intermediate.addConstantUnion($1.u64, $1.loc, true); + } + | FLOATCONSTANT { + $$ = parseContext.intermediate.addConstantUnion($1.d, EbtFloat, $1.loc, true); + } + | DOUBLECONSTANT { + parseContext.doubleCheck($1.loc, "double literal"); + $$ = parseContext.intermediate.addConstantUnion($1.d, EbtDouble, $1.loc, true); + } + | BOOLCONSTANT { + $$ = parseContext.intermediate.addConstantUnion($1.b, $1.loc, true); + } + | LEFT_PAREN expression RIGHT_PAREN { + $$ = $2; + if ($$->getAsConstantUnion()) + $$->getAsConstantUnion()->setExpression(); + } + ; + +postfix_expression + : primary_expression { + $$ = $1; + } + | postfix_expression LEFT_BRACKET integer_expression RIGHT_BRACKET { + $$ = parseContext.handleBracketDereference($2.loc, $1, $3); + } + | function_call { + $$ = $1; + } + | postfix_expression DOT IDENTIFIER { + $$ = parseContext.handleDotDereference($3.loc, $1, *$3.string); + } + | postfix_expression INC_OP { + parseContext.variableCheck($1); + parseContext.lValueErrorCheck($2.loc, "++", $1); + $$ = parseContext.handleUnaryMath($2.loc, "++", EOpPostIncrement, $1); + } + | postfix_expression DEC_OP { + parseContext.variableCheck($1); + parseContext.lValueErrorCheck($2.loc, "--", $1); + $$ = parseContext.handleUnaryMath($2.loc, "--", EOpPostDecrement, $1); + } + ; + +integer_expression + : expression { + parseContext.integerCheck($1, "[]"); + $$ = $1; + } + ; + +function_call + : function_call_or_method { + $$ = parseContext.handleFunctionCall($1.loc, $1.function, $1.intermNode); + delete $1.function; + } + ; + +function_call_or_method + : function_call_generic { + $$ = $1; + } + ; + +function_call_generic + : function_call_header_with_parameters RIGHT_PAREN { + $$ = $1; + $$.loc = $2.loc; + } + | function_call_header_no_parameters RIGHT_PAREN { + $$ = $1; + $$.loc = $2.loc; + } + ; + +function_call_header_no_parameters + : function_call_header VOID { + $$ = $1; + } + | function_call_header { + $$ = $1; + } + ; + +function_call_header_with_parameters + : function_call_header assignment_expression { + TParameter param = { 0, new TType }; + param.type->shallowCopy($2->getType()); + $1.function->addParameter(param); + $$.function = $1.function; + $$.intermNode = $2; + } + | function_call_header_with_parameters COMMA assignment_expression { + TParameter param = { 0, new TType }; + param.type->shallowCopy($3->getType()); + $1.function->addParameter(param); + $$.function = $1.function; + $$.intermNode = parseContext.intermediate.growAggregate($1.intermNode, $3, $2.loc); + } + ; + +function_call_header + : function_identifier LEFT_PAREN { + $$ = $1; + } + ; + +// Grammar Note: Constructors look like functions, but are recognized as types. + +function_identifier + : type_specifier { + // Constructor + $$.intermNode = 0; + $$.function = parseContext.handleConstructorCall($1.loc, $1); + } + | postfix_expression { + // + // Should be a method or subroutine call, but we haven't recognized the arguments yet. + // + $$.function = 0; + $$.intermNode = 0; + + TIntermMethod* method = $1->getAsMethodNode(); + if (method) { + $$.function = new TFunction(&method->getMethodName(), TType(EbtInt), EOpArrayLength); + $$.intermNode = method->getObject(); + } else { + TIntermSymbol* symbol = $1->getAsSymbolNode(); + if (symbol) { + parseContext.reservedErrorCheck(symbol->getLoc(), symbol->getName()); + TFunction *function = new TFunction(&symbol->getName(), TType(EbtVoid)); + $$.function = function; + } else + parseContext.error($1->getLoc(), "function call, method, or subroutine call expected", "", ""); + } + + if ($$.function == 0) { + // error recover + TString empty(""); + $$.function = new TFunction(&empty, TType(EbtVoid), EOpNull); + } + } + ; + +unary_expression + : postfix_expression { + parseContext.variableCheck($1); + $$ = $1; + if (TIntermMethod* method = $1->getAsMethodNode()) + parseContext.error($1->getLoc(), "incomplete method syntax", method->getMethodName().c_str(), ""); + } + | INC_OP unary_expression { + parseContext.lValueErrorCheck($1.loc, "++", $2); + $$ = parseContext.handleUnaryMath($1.loc, "++", EOpPreIncrement, $2); + } + | DEC_OP unary_expression { + parseContext.lValueErrorCheck($1.loc, "--", $2); + $$ = parseContext.handleUnaryMath($1.loc, "--", EOpPreDecrement, $2); + } + | unary_operator unary_expression { + if ($1.op != EOpNull) { + char errorOp[2] = {0, 0}; + switch($1.op) { + case EOpNegative: errorOp[0] = '-'; break; + case EOpLogicalNot: errorOp[0] = '!'; break; + case EOpBitwiseNot: errorOp[0] = '~'; break; + default: break; // some compilers want this + } + $$ = parseContext.handleUnaryMath($1.loc, errorOp, $1.op, $2); + } else { + $$ = $2; + if ($$->getAsConstantUnion()) + $$->getAsConstantUnion()->setExpression(); + } + } + ; +// Grammar Note: No traditional style type casts. + +unary_operator + : PLUS { $$.loc = $1.loc; $$.op = EOpNull; } + | DASH { $$.loc = $1.loc; $$.op = EOpNegative; } + | BANG { $$.loc = $1.loc; $$.op = EOpLogicalNot; } + | TILDE { $$.loc = $1.loc; $$.op = EOpBitwiseNot; + parseContext.fullIntegerCheck($1.loc, "bitwise not"); } + ; +// Grammar Note: No '*' or '&' unary ops. Pointers are not supported. + +multiplicative_expression + : unary_expression { $$ = $1; } + | multiplicative_expression STAR unary_expression { + $$ = parseContext.handleBinaryMath($2.loc, "*", EOpMul, $1, $3); + if ($$ == 0) + $$ = $1; + } + | multiplicative_expression SLASH unary_expression { + $$ = parseContext.handleBinaryMath($2.loc, "/", EOpDiv, $1, $3); + if ($$ == 0) + $$ = $1; + } + | multiplicative_expression PERCENT unary_expression { + parseContext.fullIntegerCheck($2.loc, "%"); + $$ = parseContext.handleBinaryMath($2.loc, "%", EOpMod, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +additive_expression + : multiplicative_expression { $$ = $1; } + | additive_expression PLUS multiplicative_expression { + $$ = parseContext.handleBinaryMath($2.loc, "+", EOpAdd, $1, $3); + if ($$ == 0) + $$ = $1; + } + | additive_expression DASH multiplicative_expression { + $$ = parseContext.handleBinaryMath($2.loc, "-", EOpSub, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +shift_expression + : additive_expression { $$ = $1; } + | shift_expression LEFT_OP additive_expression { + parseContext.fullIntegerCheck($2.loc, "bit shift left"); + $$ = parseContext.handleBinaryMath($2.loc, "<<", EOpLeftShift, $1, $3); + if ($$ == 0) + $$ = $1; + } + | shift_expression RIGHT_OP additive_expression { + parseContext.fullIntegerCheck($2.loc, "bit shift right"); + $$ = parseContext.handleBinaryMath($2.loc, ">>", EOpRightShift, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +relational_expression + : shift_expression { $$ = $1; } + | relational_expression LEFT_ANGLE shift_expression { + $$ = parseContext.handleBinaryMath($2.loc, "<", EOpLessThan, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + | relational_expression RIGHT_ANGLE shift_expression { + $$ = parseContext.handleBinaryMath($2.loc, ">", EOpGreaterThan, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + | relational_expression LE_OP shift_expression { + $$ = parseContext.handleBinaryMath($2.loc, "<=", EOpLessThanEqual, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + | relational_expression GE_OP shift_expression { + $$ = parseContext.handleBinaryMath($2.loc, ">=", EOpGreaterThanEqual, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + ; + +equality_expression + : relational_expression { $$ = $1; } + | equality_expression EQ_OP relational_expression { + parseContext.arrayObjectCheck($2.loc, $1->getType(), "array comparison"); + parseContext.opaqueCheck($2.loc, $1->getType(), "=="); + parseContext.specializationCheck($2.loc, $1->getType(), "=="); + $$ = parseContext.handleBinaryMath($2.loc, "==", EOpEqual, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + | equality_expression NE_OP relational_expression { + parseContext.arrayObjectCheck($2.loc, $1->getType(), "array comparison"); + parseContext.opaqueCheck($2.loc, $1->getType(), "!="); + parseContext.specializationCheck($2.loc, $1->getType(), "!="); + $$ = parseContext.handleBinaryMath($2.loc, "!=", EOpNotEqual, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + ; + +and_expression + : equality_expression { $$ = $1; } + | and_expression AMPERSAND equality_expression { + parseContext.fullIntegerCheck($2.loc, "bitwise and"); + $$ = parseContext.handleBinaryMath($2.loc, "&", EOpAnd, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +exclusive_or_expression + : and_expression { $$ = $1; } + | exclusive_or_expression CARET and_expression { + parseContext.fullIntegerCheck($2.loc, "bitwise exclusive or"); + $$ = parseContext.handleBinaryMath($2.loc, "^", EOpExclusiveOr, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +inclusive_or_expression + : exclusive_or_expression { $$ = $1; } + | inclusive_or_expression VERTICAL_BAR exclusive_or_expression { + parseContext.fullIntegerCheck($2.loc, "bitwise inclusive or"); + $$ = parseContext.handleBinaryMath($2.loc, "|", EOpInclusiveOr, $1, $3); + if ($$ == 0) + $$ = $1; + } + ; + +logical_and_expression + : inclusive_or_expression { $$ = $1; } + | logical_and_expression AND_OP inclusive_or_expression { + $$ = parseContext.handleBinaryMath($2.loc, "&&", EOpLogicalAnd, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + ; + +logical_xor_expression + : logical_and_expression { $$ = $1; } + | logical_xor_expression XOR_OP logical_and_expression { + $$ = parseContext.handleBinaryMath($2.loc, "^^", EOpLogicalXor, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + ; + +logical_or_expression + : logical_xor_expression { $$ = $1; } + | logical_or_expression OR_OP logical_xor_expression { + $$ = parseContext.handleBinaryMath($2.loc, "||", EOpLogicalOr, $1, $3); + if ($$ == 0) + $$ = parseContext.intermediate.addConstantUnion(false, $2.loc); + } + ; + +conditional_expression + : logical_or_expression { $$ = $1; } + | logical_or_expression QUESTION { + ++parseContext.controlFlowNestingLevel; + } + expression COLON assignment_expression { + --parseContext.controlFlowNestingLevel; + parseContext.boolCheck($2.loc, $1); + parseContext.rValueErrorCheck($2.loc, "?", $1); + parseContext.rValueErrorCheck($5.loc, ":", $4); + parseContext.rValueErrorCheck($5.loc, ":", $6); + $$ = parseContext.intermediate.addSelection($1, $4, $6, $2.loc); + if ($$ == 0) { + parseContext.binaryOpError($2.loc, ":", $4->getCompleteString(), $6->getCompleteString()); + $$ = $6; + } + } + ; + +assignment_expression + : conditional_expression { $$ = $1; } + | unary_expression assignment_operator assignment_expression { + parseContext.arrayObjectCheck($2.loc, $1->getType(), "array assignment"); + parseContext.opaqueCheck($2.loc, $1->getType(), "="); + parseContext.specializationCheck($2.loc, $1->getType(), "="); + parseContext.lValueErrorCheck($2.loc, "assign", $1); + parseContext.rValueErrorCheck($2.loc, "assign", $3); + $$ = parseContext.intermediate.addAssign($2.op, $1, $3, $2.loc); + if ($$ == 0) { + parseContext.assignError($2.loc, "assign", $1->getCompleteString(), $3->getCompleteString()); + $$ = $1; + } + } + ; + +assignment_operator + : EQUAL { + $$.loc = $1.loc; + $$.op = EOpAssign; + } + | MUL_ASSIGN { + $$.loc = $1.loc; + $$.op = EOpMulAssign; + } + | DIV_ASSIGN { + $$.loc = $1.loc; + $$.op = EOpDivAssign; + } + | MOD_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "%="); + $$.loc = $1.loc; + $$.op = EOpModAssign; + } + | ADD_ASSIGN { + $$.loc = $1.loc; + $$.op = EOpAddAssign; + } + | SUB_ASSIGN { + $$.loc = $1.loc; + $$.op = EOpSubAssign; + } + | LEFT_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "bit-shift left assign"); + $$.loc = $1.loc; $$.op = EOpLeftShiftAssign; + } + | RIGHT_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "bit-shift right assign"); + $$.loc = $1.loc; $$.op = EOpRightShiftAssign; + } + | AND_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "bitwise-and assign"); + $$.loc = $1.loc; $$.op = EOpAndAssign; + } + | XOR_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "bitwise-xor assign"); + $$.loc = $1.loc; $$.op = EOpExclusiveOrAssign; + } + | OR_ASSIGN { + parseContext.fullIntegerCheck($1.loc, "bitwise-or assign"); + $$.loc = $1.loc; $$.op = EOpInclusiveOrAssign; + } + ; + +expression + : assignment_expression { + $$ = $1; + } + | expression COMMA assignment_expression { + $$ = parseContext.intermediate.addComma($1, $3, $2.loc); + if ($$ == 0) { + parseContext.binaryOpError($2.loc, ",", $1->getCompleteString(), $3->getCompleteString()); + $$ = $3; + } + } + ; + +constant_expression + : conditional_expression { + parseContext.constantValueCheck($1, ""); + $$ = $1; + } + ; + +declaration + : function_prototype SEMICOLON { + parseContext.handleFunctionDeclarator($1.loc, *$1.function, true /* prototype */); + $$ = 0; + // TODO: 4.0 functionality: subroutines: make the identifier a user type for this signature + } + | init_declarator_list SEMICOLON { + if ($1.intermNode && $1.intermNode->getAsAggregate()) + $1.intermNode->getAsAggregate()->setOperator(EOpSequence); + $$ = $1.intermNode; + } + | PRECISION precision_qualifier type_specifier SEMICOLON { + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "precision statement"); + + // lazy setting of the previous scope's defaults, has effect only the first time it is called in a particular scope + parseContext.symbolTable.setPreviousDefaultPrecisions(&parseContext.defaultPrecision[0]); + parseContext.setDefaultPrecision($1.loc, $3, $2.qualifier.precision); + $$ = 0; + } + | block_structure SEMICOLON { + parseContext.declareBlock($1.loc, *$1.typeList); + $$ = 0; + } + | block_structure IDENTIFIER SEMICOLON { + parseContext.declareBlock($1.loc, *$1.typeList, $2.string); + $$ = 0; + } + | block_structure IDENTIFIER array_specifier SEMICOLON { + parseContext.declareBlock($1.loc, *$1.typeList, $2.string, $3.arraySizes); + $$ = 0; + } + | type_qualifier SEMICOLON { + parseContext.globalQualifierFixCheck($1.loc, $1.qualifier); + parseContext.updateStandaloneQualifierDefaults($1.loc, $1); + $$ = 0; + } + | type_qualifier IDENTIFIER SEMICOLON { + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + parseContext.addQualifierToExisting($1.loc, $1.qualifier, *$2.string); + $$ = 0; + } + | type_qualifier IDENTIFIER identifier_list SEMICOLON { + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + $3->push_back($2.string); + parseContext.addQualifierToExisting($1.loc, $1.qualifier, *$3); + $$ = 0; + } + ; + +block_structure + : type_qualifier IDENTIFIER LEFT_BRACE { parseContext.nestedBlockCheck($1.loc); } struct_declaration_list RIGHT_BRACE { + --parseContext.structNestingLevel; + parseContext.blockName = $2.string; + parseContext.globalQualifierFixCheck($1.loc, $1.qualifier); + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + parseContext.currentBlockQualifier = $1.qualifier; + $$.loc = $1.loc; + $$.typeList = $5; + } + +identifier_list + : COMMA IDENTIFIER { + $$ = new TIdentifierList; + $$->push_back($2.string); + } + | identifier_list COMMA IDENTIFIER { + $$ = $1; + $$->push_back($3.string); + } + ; + +function_prototype + : function_declarator RIGHT_PAREN { + $$.function = $1; + $$.loc = $2.loc; + } + ; + +function_declarator + : function_header { + $$ = $1; + } + | function_header_with_parameters { + $$ = $1; + } + ; + + +function_header_with_parameters + : function_header parameter_declaration { + // Add the parameter + $$ = $1; + if ($2.param.type->getBasicType() != EbtVoid) + $1->addParameter($2.param); + else + delete $2.param.type; + } + | function_header_with_parameters COMMA parameter_declaration { + // + // Only first parameter of one-parameter functions can be void + // The check for named parameters not being void is done in parameter_declarator + // + if ($3.param.type->getBasicType() == EbtVoid) { + // + // This parameter > first is void + // + parseContext.error($2.loc, "cannot be an argument type except for '(void)'", "void", ""); + delete $3.param.type; + } else { + // Add the parameter + $$ = $1; + $1->addParameter($3.param); + } + } + ; + +function_header + : fully_specified_type IDENTIFIER LEFT_PAREN { + if ($1.qualifier.storage != EvqGlobal && $1.qualifier.storage != EvqTemporary) { + parseContext.error($2.loc, "no qualifiers allowed for function return", + GetStorageQualifierString($1.qualifier.storage), ""); + } + if ($1.arraySizes) + parseContext.arraySizeRequiredCheck($1.loc, *$1.arraySizes); + + // Add the function as a prototype after parsing it (we do not support recursion) + TFunction *function; + TType type($1); + function = new TFunction($2.string, type); + $$ = function; + } + ; + +parameter_declarator + // Type + name + : type_specifier IDENTIFIER { + if ($1.arraySizes) { + parseContext.profileRequires($1.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "arrayed type"); + parseContext.arraySizeRequiredCheck($1.loc, *$1.arraySizes); + } + if ($1.basicType == EbtVoid) { + parseContext.error($2.loc, "illegal use of type 'void'", $2.string->c_str(), ""); + } + parseContext.reservedErrorCheck($2.loc, *$2.string); + + TParameter param = {$2.string, new TType($1)}; + $$.loc = $2.loc; + $$.param = param; + } + | type_specifier IDENTIFIER array_specifier { + if ($1.arraySizes) { + parseContext.profileRequires($1.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "arrayed type"); + parseContext.arraySizeRequiredCheck($1.loc, *$1.arraySizes); + } + parseContext.arrayDimCheck($2.loc, $1.arraySizes, $3.arraySizes); + + parseContext.arraySizeRequiredCheck($3.loc, *$3.arraySizes); + parseContext.reservedErrorCheck($2.loc, *$2.string); + + $1.arraySizes = $3.arraySizes; + + TParameter param = { $2.string, new TType($1)}; + $$.loc = $2.loc; + $$.param = param; + } + ; + +parameter_declaration + // + // With name + // + : type_qualifier parameter_declarator { + $$ = $2; + if ($1.qualifier.precision != EpqNone) + $$.param.type->getQualifier().precision = $1.qualifier.precision; + parseContext.precisionQualifierCheck($$.loc, $$.param.type->getBasicType(), $$.param.type->getQualifier()); + + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + parseContext.parameterTypeCheck($2.loc, $1.qualifier.storage, *$$.param.type); + parseContext.paramCheckFix($1.loc, $1.qualifier, *$$.param.type); + + } + | parameter_declarator { + $$ = $1; + + parseContext.parameterTypeCheck($1.loc, EvqIn, *$1.param.type); + parseContext.paramCheckFix($1.loc, EvqTemporary, *$$.param.type); + parseContext.precisionQualifierCheck($$.loc, $$.param.type->getBasicType(), $$.param.type->getQualifier()); + } + // + // Without name + // + | type_qualifier parameter_type_specifier { + $$ = $2; + if ($1.qualifier.precision != EpqNone) + $$.param.type->getQualifier().precision = $1.qualifier.precision; + parseContext.precisionQualifierCheck($1.loc, $$.param.type->getBasicType(), $$.param.type->getQualifier()); + + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + parseContext.parameterTypeCheck($2.loc, $1.qualifier.storage, *$$.param.type); + parseContext.paramCheckFix($1.loc, $1.qualifier, *$$.param.type); + } + | parameter_type_specifier { + $$ = $1; + + parseContext.parameterTypeCheck($1.loc, EvqIn, *$1.param.type); + parseContext.paramCheckFix($1.loc, EvqTemporary, *$$.param.type); + parseContext.precisionQualifierCheck($$.loc, $$.param.type->getBasicType(), $$.param.type->getQualifier()); + } + ; + +parameter_type_specifier + : type_specifier { + TParameter param = { 0, new TType($1) }; + $$.param = param; + if ($1.arraySizes) + parseContext.arraySizeRequiredCheck($1.loc, *$1.arraySizes); + } + ; + +init_declarator_list + : single_declaration { + $$ = $1; + } + | init_declarator_list COMMA IDENTIFIER { + $$ = $1; + parseContext.declareVariable($3.loc, *$3.string, $1.type); + } + | init_declarator_list COMMA IDENTIFIER array_specifier { + $$ = $1; + parseContext.declareVariable($3.loc, *$3.string, $1.type, $4.arraySizes); + } + | init_declarator_list COMMA IDENTIFIER array_specifier EQUAL initializer { + $$.type = $1.type; + TIntermNode* initNode = parseContext.declareVariable($3.loc, *$3.string, $1.type, $4.arraySizes, $6); + $$.intermNode = parseContext.intermediate.growAggregate($1.intermNode, initNode, $5.loc); + } + | init_declarator_list COMMA IDENTIFIER EQUAL initializer { + $$.type = $1.type; + TIntermNode* initNode = parseContext.declareVariable($3.loc, *$3.string, $1.type, 0, $5); + $$.intermNode = parseContext.intermediate.growAggregate($1.intermNode, initNode, $4.loc); + } + ; + +single_declaration + : fully_specified_type { + $$.type = $1; + $$.intermNode = 0; + parseContext.declareTypeDefaults($$.loc, $$.type); + } + | fully_specified_type IDENTIFIER { + $$.type = $1; + $$.intermNode = 0; + parseContext.declareVariable($2.loc, *$2.string, $1); + } + | fully_specified_type IDENTIFIER array_specifier { + $$.type = $1; + $$.intermNode = 0; + parseContext.declareVariable($2.loc, *$2.string, $1, $3.arraySizes); + } + | fully_specified_type IDENTIFIER array_specifier EQUAL initializer { + $$.type = $1; + TIntermNode* initNode = parseContext.declareVariable($2.loc, *$2.string, $1, $3.arraySizes, $5); + $$.intermNode = parseContext.intermediate.growAggregate(0, initNode, $4.loc); + } + | fully_specified_type IDENTIFIER EQUAL initializer { + $$.type = $1; + TIntermNode* initNode = parseContext.declareVariable($2.loc, *$2.string, $1, 0, $4); + $$.intermNode = parseContext.intermediate.growAggregate(0, initNode, $3.loc); + } + +// Grammar Note: No 'enum', or 'typedef'. + +fully_specified_type + : type_specifier { + $$ = $1; + + parseContext.globalQualifierTypeCheck($1.loc, $1.qualifier, $$); + if ($1.arraySizes) { + parseContext.profileRequires($1.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "arrayed type"); + } + + parseContext.precisionQualifierCheck($$.loc, $$.basicType, $$.qualifier); + } + | type_qualifier type_specifier { + parseContext.globalQualifierFixCheck($1.loc, $1.qualifier); + parseContext.globalQualifierTypeCheck($1.loc, $1.qualifier, $2); + + if ($2.arraySizes) { + parseContext.profileRequires($2.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($2.loc, EEsProfile, 300, 0, "arrayed type"); + } + + if ($2.arraySizes && parseContext.arrayQualifierError($2.loc, $1.qualifier)) + $2.arraySizes = 0; + + parseContext.checkNoShaderLayouts($2.loc, $1.shaderQualifiers); + $2.shaderQualifiers.merge($1.shaderQualifiers); + parseContext.mergeQualifiers($2.loc, $2.qualifier, $1.qualifier, true); + parseContext.precisionQualifierCheck($2.loc, $2.basicType, $2.qualifier); + + $$ = $2; + + if (! $$.qualifier.isInterpolation() && + ((parseContext.language == EShLangVertex && $$.qualifier.storage == EvqVaryingOut) || + (parseContext.language == EShLangFragment && $$.qualifier.storage == EvqVaryingIn))) + $$.qualifier.smooth = true; + } + ; + +invariant_qualifier + : INVARIANT { + parseContext.globalCheck($1.loc, "invariant"); + parseContext.profileRequires($$.loc, ENoProfile, 120, 0, "invariant"); + $$.init($1.loc); + $$.qualifier.invariant = true; + } + ; + +interpolation_qualifier + : SMOOTH { + parseContext.globalCheck($1.loc, "smooth"); + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "smooth"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "smooth"); + $$.init($1.loc); + $$.qualifier.smooth = true; + } + | FLAT { + parseContext.globalCheck($1.loc, "flat"); + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "flat"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "flat"); + $$.init($1.loc); + $$.qualifier.flat = true; + } + | NOPERSPECTIVE { + parseContext.globalCheck($1.loc, "noperspective"); + parseContext.requireProfile($1.loc, ~EEsProfile, "noperspective"); + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "noperspective"); + $$.init($1.loc); + $$.qualifier.nopersp = true; + } + ; + +layout_qualifier + : LAYOUT LEFT_PAREN layout_qualifier_id_list RIGHT_PAREN { + $$ = $3; + } + ; + +layout_qualifier_id_list + : layout_qualifier_id { + $$ = $1; + } + | layout_qualifier_id_list COMMA layout_qualifier_id { + $$ = $1; + $$.shaderQualifiers.merge($3.shaderQualifiers); + parseContext.mergeObjectLayoutQualifiers($$.qualifier, $3.qualifier, false); + } + +layout_qualifier_id + : IDENTIFIER { + $$.init($1.loc); + parseContext.setLayoutQualifier($1.loc, $$, *$1.string); + } + | IDENTIFIER EQUAL constant_expression { + $$.init($1.loc); + parseContext.setLayoutQualifier($1.loc, $$, *$1.string, $3); + } + | SHARED { // because "shared" is both an identifier and a keyword + $$.init($1.loc); + TString strShared("shared"); + parseContext.setLayoutQualifier($1.loc, $$, strShared); + } + ; + +precise_qualifier + : PRECISE { + parseContext.profileRequires($$.loc, ECoreProfile | ECompatibilityProfile, 400, E_GL_ARB_gpu_shader5, "precise"); + parseContext.profileRequires($1.loc, EEsProfile, 320, Num_AEP_gpu_shader5, AEP_gpu_shader5, "precise"); + $$.init($1.loc); + $$.qualifier.noContraction = true; + } + ; + +type_qualifier + : single_type_qualifier { + $$ = $1; + } + | type_qualifier single_type_qualifier { + $$ = $1; + if ($$.basicType == EbtVoid) + $$.basicType = $2.basicType; + + $$.shaderQualifiers.merge($2.shaderQualifiers); + parseContext.mergeQualifiers($$.loc, $$.qualifier, $2.qualifier, false); + } + ; + +single_type_qualifier + : storage_qualifier { + $$ = $1; + } + | layout_qualifier { + $$ = $1; + } + | precision_qualifier { + $$ = $1; + } + | interpolation_qualifier { + // allow inheritance of storage qualifier from block declaration + $$ = $1; + } + | invariant_qualifier { + // allow inheritance of storage qualifier from block declaration + $$ = $1; + } + | precise_qualifier { + // allow inheritance of storage qualifier from block declaration + $$ = $1; + } + ; + +storage_qualifier + : CONST { + $$.init($1.loc); + $$.qualifier.storage = EvqConst; // will later turn into EvqConstReadOnly, if the initializer is not constant + } + | ATTRIBUTE { + parseContext.requireStage($1.loc, EShLangVertex, "attribute"); + parseContext.checkDeprecated($1.loc, ECoreProfile, 130, "attribute"); + parseContext.checkDeprecated($1.loc, ENoProfile, 130, "attribute"); + parseContext.requireNotRemoved($1.loc, ECoreProfile, 420, "attribute"); + parseContext.requireNotRemoved($1.loc, EEsProfile, 300, "attribute"); + + parseContext.globalCheck($1.loc, "attribute"); + + $$.init($1.loc); + $$.qualifier.storage = EvqVaryingIn; + } + | VARYING { + parseContext.checkDeprecated($1.loc, ENoProfile, 130, "varying"); + parseContext.checkDeprecated($1.loc, ECoreProfile, 130, "varying"); + parseContext.requireNotRemoved($1.loc, ECoreProfile, 420, "varying"); + parseContext.requireNotRemoved($1.loc, EEsProfile, 300, "varying"); + + parseContext.globalCheck($1.loc, "varying"); + + $$.init($1.loc); + if (parseContext.language == EShLangVertex) + $$.qualifier.storage = EvqVaryingOut; + else + $$.qualifier.storage = EvqVaryingIn; + } + | INOUT { + parseContext.globalCheck($1.loc, "inout"); + $$.init($1.loc); + $$.qualifier.storage = EvqInOut; + } + | IN { + parseContext.globalCheck($1.loc, "in"); + $$.init($1.loc); + // whether this is a parameter "in" or a pipeline "in" will get sorted out a bit later + $$.qualifier.storage = EvqIn; + } + | OUT { + parseContext.globalCheck($1.loc, "out"); + $$.init($1.loc); + // whether this is a parameter "out" or a pipeline "out" will get sorted out a bit later + $$.qualifier.storage = EvqOut; + } + | CENTROID { + parseContext.profileRequires($1.loc, ENoProfile, 120, 0, "centroid"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "centroid"); + parseContext.globalCheck($1.loc, "centroid"); + $$.init($1.loc); + $$.qualifier.centroid = true; + } + | PATCH { + parseContext.globalCheck($1.loc, "patch"); + parseContext.requireStage($1.loc, (EShLanguageMask)(EShLangTessControlMask | EShLangTessEvaluationMask), "patch"); + $$.init($1.loc); + $$.qualifier.patch = true; + } + | SAMPLE { + parseContext.globalCheck($1.loc, "sample"); + $$.init($1.loc); + $$.qualifier.sample = true; + } + | UNIFORM { + parseContext.globalCheck($1.loc, "uniform"); + $$.init($1.loc); + $$.qualifier.storage = EvqUniform; + } + | BUFFER { + parseContext.globalCheck($1.loc, "buffer"); + $$.init($1.loc); + $$.qualifier.storage = EvqBuffer; + } + | SHARED { + parseContext.profileRequires($1.loc, ECoreProfile | ECompatibilityProfile, 430, E_GL_ARB_compute_shader, "shared"); + parseContext.profileRequires($1.loc, EEsProfile, 310, 0, "shared"); + parseContext.requireStage($1.loc, EShLangCompute, "shared"); + $$.init($1.loc); + $$.qualifier.storage = EvqShared; + } + | COHERENT { + $$.init($1.loc); + $$.qualifier.coherent = true; + } + | VOLATILE { + $$.init($1.loc); + $$.qualifier.volatil = true; + } + | RESTRICT { + $$.init($1.loc); + $$.qualifier.restrict = true; + } + | READONLY { + $$.init($1.loc); + $$.qualifier.readonly = true; + } + | WRITEONLY { + $$.init($1.loc); + $$.qualifier.writeonly = true; + } + | SUBROUTINE { + parseContext.spvRemoved($1.loc, "subroutine"); + parseContext.globalCheck($1.loc, "subroutine"); + $$.init($1.loc); + $$.qualifier.storage = EvqUniform; + } + | SUBROUTINE LEFT_PAREN type_name_list RIGHT_PAREN { + parseContext.spvRemoved($1.loc, "subroutine"); + parseContext.globalCheck($1.loc, "subroutine"); + $$.init($1.loc); + $$.qualifier.storage = EvqUniform; + // TODO: 4.0 semantics: subroutines + // 1) make sure each identifier is a type declared earlier with SUBROUTINE + // 2) save all of the identifiers for future comparison with the declared function + } + ; + +type_name_list + : TYPE_NAME { + // TODO: 4.0 functionality: subroutine type to list + } + | type_name_list COMMA TYPE_NAME { + } + ; + +type_specifier + : type_specifier_nonarray { + $$ = $1; + $$.qualifier.precision = parseContext.getDefaultPrecision($$); + } + | type_specifier_nonarray array_specifier { + parseContext.arrayDimCheck($2.loc, $2.arraySizes, 0); + $$ = $1; + $$.qualifier.precision = parseContext.getDefaultPrecision($$); + $$.arraySizes = $2.arraySizes; + } + ; + +array_specifier + : LEFT_BRACKET RIGHT_BRACKET { + $$.loc = $1.loc; + $$.arraySizes = new TArraySizes; + $$.arraySizes->addInnerSize(); + } + | LEFT_BRACKET conditional_expression RIGHT_BRACKET { + $$.loc = $1.loc; + $$.arraySizes = new TArraySizes; + + TArraySize size; + parseContext.arraySizeCheck($2->getLoc(), $2, size); + $$.arraySizes->addInnerSize(size); + } + | array_specifier LEFT_BRACKET RIGHT_BRACKET { + $$ = $1; + $$.arraySizes->addInnerSize(); + } + | array_specifier LEFT_BRACKET conditional_expression RIGHT_BRACKET { + $$ = $1; + + TArraySize size; + parseContext.arraySizeCheck($3->getLoc(), $3, size); + $$.arraySizes->addInnerSize(size); + } + ; + +type_specifier_nonarray + : VOID { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtVoid; + } + | FLOAT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + } + | DOUBLE { + parseContext.doubleCheck($1.loc, "double"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + } + | INT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt; + } + | UINT { + parseContext.fullIntegerCheck($1.loc, "unsigned integer"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint; + } + | INT64_T { + parseContext.int64Check($1.loc, "64-bit integer", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt64; + } + | UINT64_T { + parseContext.int64Check($1.loc, "64-bit unsigned integer", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint64; + } + | BOOL { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtBool; + } + | VEC2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setVector(2); + } + | VEC3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setVector(3); + } + | VEC4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setVector(4); + } + | DVEC2 { + parseContext.doubleCheck($1.loc, "double vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setVector(2); + } + | DVEC3 { + parseContext.doubleCheck($1.loc, "double vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setVector(3); + } + | DVEC4 { + parseContext.doubleCheck($1.loc, "double vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setVector(4); + } + | BVEC2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtBool; + $$.setVector(2); + } + | BVEC3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtBool; + $$.setVector(3); + } + | BVEC4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtBool; + $$.setVector(4); + } + | IVEC2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt; + $$.setVector(2); + } + | IVEC3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt; + $$.setVector(3); + } + | IVEC4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt; + $$.setVector(4); + } + | I64VEC2 { + parseContext.int64Check($1.loc, "64-bit integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt64; + $$.setVector(2); + } + | I64VEC3 { + parseContext.int64Check($1.loc, "64-bit integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt64; + $$.setVector(3); + } + | I64VEC4 { + parseContext.int64Check($1.loc, "64-bit integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtInt64; + $$.setVector(4); + } + | UVEC2 { + parseContext.fullIntegerCheck($1.loc, "unsigned integer vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint; + $$.setVector(2); + } + | UVEC3 { + parseContext.fullIntegerCheck($1.loc, "unsigned integer vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint; + $$.setVector(3); + } + | UVEC4 { + parseContext.fullIntegerCheck($1.loc, "unsigned integer vector"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint; + $$.setVector(4); + } + | U64VEC2 { + parseContext.int64Check($1.loc, "64-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint64; + $$.setVector(2); + } + | U64VEC3 { + parseContext.int64Check($1.loc, "64-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint64; + $$.setVector(3); + } + | U64VEC4 { + parseContext.int64Check($1.loc, "64-bit unsigned integer vector", parseContext.symbolTable.atBuiltInLevel()); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtUint64; + $$.setVector(4); + } + | MAT2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(2, 2); + } + | MAT3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(3, 3); + } + | MAT4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(4, 4); + } + | MAT2X2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(2, 2); + } + | MAT2X3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(2, 3); + } + | MAT2X4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(2, 4); + } + | MAT3X2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(3, 2); + } + | MAT3X3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(3, 3); + } + | MAT3X4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(3, 4); + } + | MAT4X2 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(4, 2); + } + | MAT4X3 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(4, 3); + } + | MAT4X4 { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtFloat; + $$.setMatrix(4, 4); + } + | DMAT2 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(2, 2); + } + | DMAT3 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(3, 3); + } + | DMAT4 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(4, 4); + } + | DMAT2X2 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(2, 2); + } + | DMAT2X3 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(2, 3); + } + | DMAT2X4 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(2, 4); + } + | DMAT3X2 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(3, 2); + } + | DMAT3X3 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(3, 3); + } + | DMAT3X4 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(3, 4); + } + | DMAT4X2 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(4, 2); + } + | DMAT4X3 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(4, 3); + } + | DMAT4X4 { + parseContext.doubleCheck($1.loc, "double matrix"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtDouble; + $$.setMatrix(4, 4); + } + | ATOMIC_UINT { + parseContext.vulkanRemoved($1.loc, "atomic counter types"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtAtomicUint; + } + | SAMPLER1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd1D); + } + | SAMPLER2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D); + } + | SAMPLER3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd3D); + } + | SAMPLERCUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdCube); + } + | SAMPLER1DSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd1D, false, true); + } + | SAMPLER2DSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D, false, true); + } + | SAMPLERCUBESHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdCube, false, true); + } + | SAMPLER1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd1D, true); + } + | SAMPLER2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D, true); + } + | SAMPLER1DARRAYSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd1D, true, true); + } + | SAMPLER2DARRAYSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D, true, true); + } + | SAMPLERCUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdCube, true); + } + | SAMPLERCUBEARRAYSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdCube, true, true); + } + | ISAMPLER1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd1D); + } + | ISAMPLER2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd2D); + } + | ISAMPLER3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd3D); + } + | ISAMPLERCUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, EsdCube); + } + | ISAMPLER1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd1D, true); + } + | ISAMPLER2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd2D, true); + } + | ISAMPLERCUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, EsdCube, true); + } + | USAMPLER1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd1D); + } + | USAMPLER2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd2D); + } + | USAMPLER3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd3D); + } + | USAMPLERCUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, EsdCube); + } + | USAMPLER1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd1D, true); + } + | USAMPLER2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd2D, true); + } + | USAMPLERCUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, EsdCube, true); + } + | SAMPLER2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdRect); + } + | SAMPLER2DRECTSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdRect, false, true); + } + | ISAMPLER2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, EsdRect); + } + | USAMPLER2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, EsdRect); + } + | SAMPLERBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, EsdBuffer); + } + | ISAMPLERBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, EsdBuffer); + } + | USAMPLERBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, EsdBuffer); + } + | SAMPLER2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D, false, false, true); + } + | ISAMPLER2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd2D, false, false, true); + } + | USAMPLER2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd2D, false, false, true); + } + | SAMPLER2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D, true, false, true); + } + | ISAMPLER2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtInt, Esd2D, true, false, true); + } + | USAMPLER2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtUint, Esd2D, true, false, true); + } + | SAMPLER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setPureSampler(false); + } + | SAMPLERSHADOW { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setPureSampler(true); + } + | TEXTURE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd1D); + } + | TEXTURE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd2D); + } + | TEXTURE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd3D); + } + | TEXTURECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, EsdCube); + } + | TEXTURE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd1D, true); + } + | TEXTURE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd2D, true); + } + | TEXTURECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, EsdCube, true); + } + | ITEXTURE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd1D); + } + | ITEXTURE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd2D); + } + | ITEXTURE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd3D); + } + | ITEXTURECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, EsdCube); + } + | ITEXTURE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd1D, true); + } + | ITEXTURE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd2D, true); + } + | ITEXTURECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, EsdCube, true); + } + | UTEXTURE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd1D); + } + | UTEXTURE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd2D); + } + | UTEXTURE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd3D); + } + | UTEXTURECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, EsdCube); + } + | UTEXTURE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd1D, true); + } + | UTEXTURE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd2D, true); + } + | UTEXTURECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, EsdCube, true); + } + | TEXTURE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, EsdRect); + } + | ITEXTURE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, EsdRect); + } + | UTEXTURE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, EsdRect); + } + | TEXTUREBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, EsdBuffer); + } + | ITEXTUREBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, EsdBuffer); + } + | UTEXTUREBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, EsdBuffer); + } + | TEXTURE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd2D, false, false, true); + } + | ITEXTURE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd2D, false, false, true); + } + | UTEXTURE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd2D, false, false, true); + } + | TEXTURE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtFloat, Esd2D, true, false, true); + } + | ITEXTURE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtInt, Esd2D, true, false, true); + } + | UTEXTURE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setTexture(EbtUint, Esd2D, true, false, true); + } + | IMAGE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd1D); + } + | IIMAGE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd1D); + } + | UIMAGE1D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd1D); + } + | IMAGE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd2D); + } + | IIMAGE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd2D); + } + | UIMAGE2D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd2D); + } + | IMAGE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd3D); + } + | IIMAGE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd3D); + } + | UIMAGE3D { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd3D); + } + | IMAGE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, EsdRect); + } + | IIMAGE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, EsdRect); + } + | UIMAGE2DRECT { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, EsdRect); + } + | IMAGECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, EsdCube); + } + | IIMAGECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, EsdCube); + } + | UIMAGECUBE { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, EsdCube); + } + | IMAGEBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, EsdBuffer); + } + | IIMAGEBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, EsdBuffer); + } + | UIMAGEBUFFER { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, EsdBuffer); + } + | IMAGE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd1D, true); + } + | IIMAGE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd1D, true); + } + | UIMAGE1DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd1D, true); + } + | IMAGE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd2D, true); + } + | IIMAGE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd2D, true); + } + | UIMAGE2DARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd2D, true); + } + | IMAGECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, EsdCube, true); + } + | IIMAGECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, EsdCube, true); + } + | UIMAGECUBEARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, EsdCube, true); + } + | IMAGE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd2D, false, false, true); + } + | IIMAGE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd2D, false, false, true); + } + | UIMAGE2DMS { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd2D, false, false, true); + } + | IMAGE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtFloat, Esd2D, true, false, true); + } + | IIMAGE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtInt, Esd2D, true, false, true); + } + | UIMAGE2DMSARRAY { + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setImage(EbtUint, Esd2D, true, false, true); + } + | SAMPLEREXTERNALOES { // GL_OES_EGL_image_external + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.set(EbtFloat, Esd2D); + $$.sampler.external = true; + } + | SUBPASSINPUT { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtFloat); + } + | SUBPASSINPUTMS { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtFloat, true); + } + | ISUBPASSINPUT { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtInt); + } + | ISUBPASSINPUTMS { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtInt, true); + } + | USUBPASSINPUT { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtUint); + } + | USUBPASSINPUTMS { + parseContext.requireStage($1.loc, EShLangFragment, "subpass input"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtSampler; + $$.sampler.setSubpass(EbtUint, true); + } + | struct_specifier { + $$ = $1; + $$.qualifier.storage = parseContext.symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; + parseContext.structTypeCheck($$.loc, $$); + } + | TYPE_NAME { + // + // This is for user defined type names. The lexical phase looked up the + // type. + // + if (const TVariable* variable = ($1.symbol)->getAsVariable()) { + const TType& structure = variable->getType(); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + $$.basicType = EbtStruct; + $$.userDef = &structure; + } else + parseContext.error($1.loc, "expected type name", $1.string->c_str(), ""); + } + ; + +precision_qualifier + : HIGH_PRECISION { + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "highp precision qualifier"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + if (parseContext.profile == EEsProfile) + $$.qualifier.precision = EpqHigh; + } + | MEDIUM_PRECISION { + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "mediump precision qualifier"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + if (parseContext.profile == EEsProfile) + $$.qualifier.precision = EpqMedium; + } + | LOW_PRECISION { + parseContext.profileRequires($1.loc, ENoProfile, 130, 0, "lowp precision qualifier"); + $$.init($1.loc, parseContext.symbolTable.atGlobalLevel()); + if (parseContext.profile == EEsProfile) + $$.qualifier.precision = EpqLow; + } + ; + +struct_specifier + : STRUCT IDENTIFIER LEFT_BRACE { parseContext.nestedStructCheck($1.loc); } struct_declaration_list RIGHT_BRACE { + TType* structure = new TType($5, *$2.string); + parseContext.structArrayCheck($2.loc, *structure); + TVariable* userTypeDef = new TVariable($2.string, *structure, true); + if (! parseContext.symbolTable.insert(*userTypeDef)) + parseContext.error($2.loc, "redefinition", $2.string->c_str(), "struct"); + $$.init($1.loc); + $$.basicType = EbtStruct; + $$.userDef = structure; + --parseContext.structNestingLevel; + } + | STRUCT LEFT_BRACE { parseContext.nestedStructCheck($1.loc); } struct_declaration_list RIGHT_BRACE { + TType* structure = new TType($4, TString("")); + $$.init($1.loc); + $$.basicType = EbtStruct; + $$.userDef = structure; + --parseContext.structNestingLevel; + } + ; + +struct_declaration_list + : struct_declaration { + $$ = $1; + } + | struct_declaration_list struct_declaration { + $$ = $1; + for (unsigned int i = 0; i < $2->size(); ++i) { + for (unsigned int j = 0; j < $$->size(); ++j) { + if ((*$$)[j].type->getFieldName() == (*$2)[i].type->getFieldName()) + parseContext.error((*$2)[i].loc, "duplicate member name:", "", (*$2)[i].type->getFieldName().c_str()); + } + $$->push_back((*$2)[i]); + } + } + ; + +struct_declaration + : type_specifier struct_declarator_list SEMICOLON { + if ($1.arraySizes) { + parseContext.profileRequires($1.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($1.loc, EEsProfile, 300, 0, "arrayed type"); + if (parseContext.profile == EEsProfile) + parseContext.arraySizeRequiredCheck($1.loc, *$1.arraySizes); + } + + $$ = $2; + + parseContext.voidErrorCheck($1.loc, (*$2)[0].type->getFieldName(), $1.basicType); + parseContext.precisionQualifierCheck($1.loc, $1.basicType, $1.qualifier); + + for (unsigned int i = 0; i < $$->size(); ++i) { + parseContext.arrayDimCheck($1.loc, (*$$)[i].type, $1.arraySizes); + (*$$)[i].type->mergeType($1); + } + } + | type_qualifier type_specifier struct_declarator_list SEMICOLON { + parseContext.globalQualifierFixCheck($1.loc, $1.qualifier); + if ($2.arraySizes) { + parseContext.profileRequires($2.loc, ENoProfile, 120, E_GL_3DL_array_objects, "arrayed type"); + parseContext.profileRequires($2.loc, EEsProfile, 300, 0, "arrayed type"); + if (parseContext.profile == EEsProfile) + parseContext.arraySizeRequiredCheck($2.loc, *$2.arraySizes); + } + + $$ = $3; + + parseContext.checkNoShaderLayouts($1.loc, $1.shaderQualifiers); + parseContext.voidErrorCheck($2.loc, (*$3)[0].type->getFieldName(), $2.basicType); + parseContext.mergeQualifiers($2.loc, $2.qualifier, $1.qualifier, true); + parseContext.precisionQualifierCheck($2.loc, $2.basicType, $2.qualifier); + + for (unsigned int i = 0; i < $$->size(); ++i) { + parseContext.arrayDimCheck($1.loc, (*$$)[i].type, $2.arraySizes); + (*$$)[i].type->mergeType($2); + } + } + ; + +struct_declarator_list + : struct_declarator { + $$ = new TTypeList; + $$->push_back($1); + } + | struct_declarator_list COMMA struct_declarator { + $$->push_back($3); + } + ; + +struct_declarator + : IDENTIFIER { + $$.type = new TType(EbtVoid); + $$.loc = $1.loc; + $$.type->setFieldName(*$1.string); + } + | IDENTIFIER array_specifier { + parseContext.arrayDimCheck($1.loc, $2.arraySizes, 0); + + $$.type = new TType(EbtVoid); + $$.loc = $1.loc; + $$.type->setFieldName(*$1.string); + $$.type->newArraySizes(*$2.arraySizes); + } + ; + +initializer + : assignment_expression { + $$ = $1; + } + | LEFT_BRACE initializer_list RIGHT_BRACE { + const char* initFeature = "{ } style initializers"; + parseContext.requireProfile($1.loc, ~EEsProfile, initFeature); + parseContext.profileRequires($1.loc, ~EEsProfile, 420, E_GL_ARB_shading_language_420pack, initFeature); + $$ = $2; + } + | LEFT_BRACE initializer_list COMMA RIGHT_BRACE { + const char* initFeature = "{ } style initializers"; + parseContext.requireProfile($1.loc, ~EEsProfile, initFeature); + parseContext.profileRequires($1.loc, ~EEsProfile, 420, E_GL_ARB_shading_language_420pack, initFeature); + $$ = $2; + } + ; + +initializer_list + : initializer { + $$ = parseContext.intermediate.growAggregate(0, $1, $1->getLoc()); + } + | initializer_list COMMA initializer { + $$ = parseContext.intermediate.growAggregate($1, $3); + } + ; + +declaration_statement + : declaration { $$ = $1; } + ; + +statement + : compound_statement { $$ = $1; } + | simple_statement { $$ = $1; } + ; + +// Grammar Note: labeled statements for switch statements only; 'goto' is not supported. + +simple_statement + : declaration_statement { $$ = $1; } + | expression_statement { $$ = $1; } + | selection_statement { $$ = $1; } + | switch_statement { $$ = $1; } + | case_label { $$ = $1; } + | iteration_statement { $$ = $1; } + | jump_statement { $$ = $1; } + ; + +compound_statement + : LEFT_BRACE RIGHT_BRACE { $$ = 0; } + | LEFT_BRACE { + parseContext.symbolTable.push(); + ++parseContext.statementNestingLevel; + } + statement_list { + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + --parseContext.statementNestingLevel; + } + RIGHT_BRACE { + if ($3 && $3->getAsAggregate()) + $3->getAsAggregate()->setOperator(EOpSequence); + $$ = $3; + } + ; + +statement_no_new_scope + : compound_statement_no_new_scope { $$ = $1; } + | simple_statement { $$ = $1; } + ; + +statement_scoped + : { + ++parseContext.controlFlowNestingLevel; + } + compound_statement { + --parseContext.controlFlowNestingLevel; + $$ = $2; + } + | { + parseContext.symbolTable.push(); + ++parseContext.statementNestingLevel; + ++parseContext.controlFlowNestingLevel; + } + simple_statement { + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + --parseContext.statementNestingLevel; + --parseContext.controlFlowNestingLevel; + $$ = $2; + } + +compound_statement_no_new_scope + // Statement that doesn't create a new scope, for selection_statement, iteration_statement + : LEFT_BRACE RIGHT_BRACE { + $$ = 0; + } + | LEFT_BRACE statement_list RIGHT_BRACE { + if ($2 && $2->getAsAggregate()) + $2->getAsAggregate()->setOperator(EOpSequence); + $$ = $2; + } + ; + +statement_list + : statement { + $$ = parseContext.intermediate.makeAggregate($1); + if ($1 && $1->getAsBranchNode() && ($1->getAsBranchNode()->getFlowOp() == EOpCase || + $1->getAsBranchNode()->getFlowOp() == EOpDefault)) { + parseContext.wrapupSwitchSubsequence(0, $1); + $$ = 0; // start a fresh subsequence for what's after this case + } + } + | statement_list statement { + if ($2 && $2->getAsBranchNode() && ($2->getAsBranchNode()->getFlowOp() == EOpCase || + $2->getAsBranchNode()->getFlowOp() == EOpDefault)) { + parseContext.wrapupSwitchSubsequence($1 ? $1->getAsAggregate() : 0, $2); + $$ = 0; // start a fresh subsequence for what's after this case + } else + $$ = parseContext.intermediate.growAggregate($1, $2); + } + ; + +expression_statement + : SEMICOLON { $$ = 0; } + | expression SEMICOLON { $$ = static_cast<TIntermNode*>($1); } + ; + +selection_statement + : IF LEFT_PAREN expression RIGHT_PAREN selection_rest_statement { + parseContext.boolCheck($1.loc, $3); + $$ = parseContext.intermediate.addSelection($3, $5, $1.loc); + } + ; + +selection_rest_statement + : statement_scoped ELSE statement_scoped { + $$.node1 = $1; + $$.node2 = $3; + } + | statement_scoped { + $$.node1 = $1; + $$.node2 = 0; + } + ; + +condition + // In 1996 c++ draft, conditions can include single declarations + : expression { + $$ = $1; + parseContext.boolCheck($1->getLoc(), $1); + } + | fully_specified_type IDENTIFIER EQUAL initializer { + parseContext.boolCheck($2.loc, $1); + + TType type($1); + TIntermNode* initNode = parseContext.declareVariable($2.loc, *$2.string, $1, 0, $4); + if (initNode) + $$ = initNode->getAsTyped(); + else + $$ = 0; + } + ; + +switch_statement + : SWITCH LEFT_PAREN expression RIGHT_PAREN { + // start new switch sequence on the switch stack + ++parseContext.controlFlowNestingLevel; + ++parseContext.statementNestingLevel; + parseContext.switchSequenceStack.push_back(new TIntermSequence); + parseContext.switchLevel.push_back(parseContext.statementNestingLevel); + parseContext.symbolTable.push(); + } + LEFT_BRACE switch_statement_list RIGHT_BRACE { + $$ = parseContext.addSwitch($1.loc, $3, $7 ? $7->getAsAggregate() : 0); + delete parseContext.switchSequenceStack.back(); + parseContext.switchSequenceStack.pop_back(); + parseContext.switchLevel.pop_back(); + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + --parseContext.statementNestingLevel; + --parseContext.controlFlowNestingLevel; + } + ; + +switch_statement_list + : /* nothing */ { + $$ = 0; + } + | statement_list { + $$ = $1; + } + ; + +case_label + : CASE expression COLON { + $$ = 0; + if (parseContext.switchLevel.size() == 0) + parseContext.error($1.loc, "cannot appear outside switch statement", "case", ""); + else if (parseContext.switchLevel.back() != parseContext.statementNestingLevel) + parseContext.error($1.loc, "cannot be nested inside control flow", "case", ""); + else { + parseContext.constantValueCheck($2, "case"); + parseContext.integerCheck($2, "case"); + $$ = parseContext.intermediate.addBranch(EOpCase, $2, $1.loc); + } + } + | DEFAULT COLON { + $$ = 0; + if (parseContext.switchLevel.size() == 0) + parseContext.error($1.loc, "cannot appear outside switch statement", "default", ""); + else if (parseContext.switchLevel.back() != parseContext.statementNestingLevel) + parseContext.error($1.loc, "cannot be nested inside control flow", "default", ""); + else + $$ = parseContext.intermediate.addBranch(EOpDefault, $1.loc); + } + ; + +iteration_statement + : WHILE LEFT_PAREN { + if (! parseContext.limits.whileLoops) + parseContext.error($1.loc, "while loops not available", "limitation", ""); + parseContext.symbolTable.push(); + ++parseContext.loopNestingLevel; + ++parseContext.statementNestingLevel; + ++parseContext.controlFlowNestingLevel; + } + condition RIGHT_PAREN statement_no_new_scope { + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + $$ = parseContext.intermediate.addLoop($6, $4, 0, true, $1.loc); + --parseContext.loopNestingLevel; + --parseContext.statementNestingLevel; + --parseContext.controlFlowNestingLevel; + } + | DO { + ++parseContext.loopNestingLevel; + ++parseContext.statementNestingLevel; + ++parseContext.controlFlowNestingLevel; + } + statement WHILE LEFT_PAREN expression RIGHT_PAREN SEMICOLON { + if (! parseContext.limits.whileLoops) + parseContext.error($1.loc, "do-while loops not available", "limitation", ""); + + parseContext.boolCheck($8.loc, $6); + + $$ = parseContext.intermediate.addLoop($3, $6, 0, false, $4.loc); + --parseContext.loopNestingLevel; + --parseContext.statementNestingLevel; + --parseContext.controlFlowNestingLevel; + } + | FOR LEFT_PAREN { + parseContext.symbolTable.push(); + ++parseContext.loopNestingLevel; + ++parseContext.statementNestingLevel; + ++parseContext.controlFlowNestingLevel; + } + for_init_statement for_rest_statement RIGHT_PAREN statement_no_new_scope { + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + $$ = parseContext.intermediate.makeAggregate($4, $2.loc); + TIntermLoop* forLoop = parseContext.intermediate.addLoop($7, reinterpret_cast<TIntermTyped*>($5.node1), reinterpret_cast<TIntermTyped*>($5.node2), true, $1.loc); + if (! parseContext.limits.nonInductiveForLoops) + parseContext.inductiveLoopCheck($1.loc, $4, forLoop); + $$ = parseContext.intermediate.growAggregate($$, forLoop, $1.loc); + $$->getAsAggregate()->setOperator(EOpSequence); + --parseContext.loopNestingLevel; + --parseContext.statementNestingLevel; + --parseContext.controlFlowNestingLevel; + } + ; + +for_init_statement + : expression_statement { + $$ = $1; + } + | declaration_statement { + $$ = $1; + } + ; + +conditionopt + : condition { + $$ = $1; + } + | /* May be null */ { + $$ = 0; + } + ; + +for_rest_statement + : conditionopt SEMICOLON { + $$.node1 = $1; + $$.node2 = 0; + } + | conditionopt SEMICOLON expression { + $$.node1 = $1; + $$.node2 = $3; + } + ; + +jump_statement + : CONTINUE SEMICOLON { + if (parseContext.loopNestingLevel <= 0) + parseContext.error($1.loc, "continue statement only allowed in loops", "", ""); + $$ = parseContext.intermediate.addBranch(EOpContinue, $1.loc); + } + | BREAK SEMICOLON { + if (parseContext.loopNestingLevel + parseContext.switchSequenceStack.size() <= 0) + parseContext.error($1.loc, "break statement only allowed in switch and loops", "", ""); + $$ = parseContext.intermediate.addBranch(EOpBreak, $1.loc); + } + | RETURN SEMICOLON { + $$ = parseContext.intermediate.addBranch(EOpReturn, $1.loc); + if (parseContext.currentFunctionType->getBasicType() != EbtVoid) + parseContext.error($1.loc, "non-void function must return a value", "return", ""); + if (parseContext.inMain) + parseContext.postMainReturn = true; + } + | RETURN expression SEMICOLON { + parseContext.functionReturnsValue = true; + if (parseContext.currentFunctionType->getBasicType() == EbtVoid) { + parseContext.error($1.loc, "void function cannot return a value", "return", ""); + $$ = parseContext.intermediate.addBranch(EOpReturn, $1.loc); + } else if (*(parseContext.currentFunctionType) != $2->getType()) { + TIntermTyped* converted = parseContext.intermediate.addConversion(EOpReturn, *parseContext.currentFunctionType, $2); + if (converted) { + if (parseContext.version < 420) + parseContext.warn($1.loc, "type conversion on return values was not explicitly allowed until version 420", "return", ""); + $$ = parseContext.intermediate.addBranch(EOpReturn, converted, $1.loc); + } else { + parseContext.error($1.loc, "type does not match, or is not convertible to, the function's return type", "return", ""); + $$ = parseContext.intermediate.addBranch(EOpReturn, $2, $1.loc); + } + } else + $$ = parseContext.intermediate.addBranch(EOpReturn, $2, $1.loc); + } + | DISCARD SEMICOLON { + parseContext.requireStage($1.loc, EShLangFragment, "discard"); + $$ = parseContext.intermediate.addBranch(EOpKill, $1.loc); + } + ; + +// Grammar Note: No 'goto'. Gotos are not supported. + +translation_unit + : external_declaration { + $$ = $1; + parseContext.intermediate.setTreeRoot($$); + } + | translation_unit external_declaration { + $$ = parseContext.intermediate.growAggregate($1, $2); + parseContext.intermediate.setTreeRoot($$); + } + ; + +external_declaration + : function_definition { + $$ = $1; + } + | declaration { + $$ = $1; + } + ; + +function_definition + : function_prototype { + $1.function = parseContext.handleFunctionDeclarator($1.loc, *$1.function, false /* not prototype */); + $1.intermNode = parseContext.handleFunctionDefinition($1.loc, *$1.function); + } + compound_statement_no_new_scope { + // May be best done as post process phase on intermediate code + if (parseContext.currentFunctionType->getBasicType() != EbtVoid && ! parseContext.functionReturnsValue) + parseContext.error($1.loc, "function does not return a value:", "", $1.function->getName().c_str()); + parseContext.symbolTable.pop(&parseContext.defaultPrecision[0]); + $$ = parseContext.intermediate.growAggregate($1.intermNode, $3); + parseContext.intermediate.setAggregateOperator($$, EOpFunction, $1.function->getType(), $1.loc); + $$->getAsAggregate()->setName($1.function->getMangledName().c_str()); + + // store the pragma information for debug and optimize and other vendor specific + // information. This information can be queried from the parse tree + $$->getAsAggregate()->setOptimize(parseContext.contextPragma.optimize); + $$->getAsAggregate()->setDebug(parseContext.contextPragma.debug); + $$->getAsAggregate()->addToPragmaTable(parseContext.contextPragma.pragmaTable); + } + ; + +%% |