diff options
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/glslang.y')
| -rw-r--r-- | src/3rdparty/angle/src/compiler/translator/glslang.y | 1468 |
1 files changed, 0 insertions, 1468 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/glslang.y b/src/3rdparty/angle/src/compiler/translator/glslang.y deleted file mode 100644 index 3e506caac8..0000000000 --- a/src/3rdparty/angle/src/compiler/translator/glslang.y +++ /dev/null @@ -1,1468 +0,0 @@ -/* -// -// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -// - -This file contains the Yacc grammar for GLSL ES. -Based on ANSI C Yacc grammar: -http://www.lysator.liu.se/c/ANSI-C-grammar-y.html - -IF YOU MODIFY THIS FILE YOU ALSO NEED TO RUN generate_parser.sh, -WHICH GENERATES THE GLSL ES PARSER (glslang_tab.cpp AND glslang_tab.h). -*/ - -%{ -// -// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. -// - -// This file is auto-generated by generate_parser.sh. DO NOT EDIT! - -// clang-format off - -// Ignore errors in auto-generated code. -#if defined(__GNUC__) -#pragma GCC diagnostic ignored "-Wunused-function" -#pragma GCC diagnostic ignored "-Wunused-variable" -#pragma GCC diagnostic ignored "-Wswitch-enum" -#elif defined(_MSC_VER) -#pragma warning(disable: 4065) -#pragma warning(disable: 4189) -#pragma warning(disable: 4244) -#pragma warning(disable: 4505) -#pragma warning(disable: 4701) -#pragma warning(disable: 4702) -#endif - -#include "angle_gl.h" -#include "compiler/translator/Cache.h" -#include "compiler/translator/SymbolTable.h" -#include "compiler/translator/ParseContext.h" -#include "GLSLANG/ShaderLang.h" - -#define YYENABLE_NLS 0 - -using namespace sh; - -%} -%expect 1 /* One shift reduce conflict because of if | else */ -%parse-param {TParseContext* context} -%param {void *scanner} -%define api.pure full -%locations - -%code requires { -#define YYLTYPE TSourceLoc -#define YYLTYPE_IS_DECLARED 1 -} - -%union { - struct { - union { - TString *string; - float f; - int i; - unsigned int u; - bool b; - }; - TSymbol* symbol; - } lex; - struct { - TOperator op; - union { - TIntermNode *intermNode; - TIntermNodePair nodePair; - TIntermFunctionCallOrMethod callOrMethodPair; - TIntermTyped *intermTypedNode; - TIntermAggregate *intermAggregate; - TIntermBlock *intermBlock; - TIntermDeclaration *intermDeclaration; - TIntermFunctionPrototype *intermFunctionPrototype; - TIntermSwitch *intermSwitch; - TIntermCase *intermCase; - }; - union { - TVector<unsigned int> *arraySizes; - TTypeSpecifierNonArray typeSpecifierNonArray; - TPublicType type; - TPrecision precision; - TLayoutQualifier layoutQualifier; - TQualifier qualifier; - TFunction *function; - TParameter param; - TField *field; - TFieldList *fieldList; - TQualifierWrapperBase *qualifierWrapper; - TTypeQualifierBuilder *typeQualifierBuilder; - }; - } interm; -} - -%{ -extern int yylex(YYSTYPE* yylval, YYLTYPE* yylloc, void* yyscanner); -extern void yyerror(YYLTYPE* yylloc, TParseContext* context, void *scanner, const char* reason); - -#define YYLLOC_DEFAULT(Current, Rhs, N) \ - do { \ - if (N) { \ - (Current).first_file = YYRHSLOC(Rhs, 1).first_file; \ - (Current).first_line = YYRHSLOC(Rhs, 1).first_line; \ - (Current).last_file = YYRHSLOC(Rhs, N).last_file; \ - (Current).last_line = YYRHSLOC(Rhs, N).last_line; \ - } \ - else { \ - (Current).first_file = YYRHSLOC(Rhs, 0).last_file; \ - (Current).first_line = YYRHSLOC(Rhs, 0).last_line; \ - (Current).last_file = YYRHSLOC(Rhs, 0).last_file; \ - (Current).last_line = YYRHSLOC(Rhs, 0).last_line; \ - } \ - } while (0) - -#define VERTEX_ONLY(S, L) { \ - if (context->getShaderType() != GL_VERTEX_SHADER) { \ - context->error(L, " supported in vertex shaders only", S); \ - } \ -} - -#define COMPUTE_ONLY(S, L) { \ - if (context->getShaderType() != GL_COMPUTE_SHADER) { \ - context->error(L, " supported in compute shaders only", S); \ - } \ -} - -#define ES2_ONLY(S, L) { \ - if (context->getShaderVersion() != 100) { \ - context->error(L, " supported in GLSL ES 1.00 only", S); \ - } \ -} - -#define ES3_OR_NEWER(TOKEN, LINE, REASON) { \ - if (context->getShaderVersion() < 300) { \ - context->error(LINE, REASON " supported in GLSL ES 3.00 and above only", TOKEN); \ - } \ -} - -#define ES3_OR_NEWER_OR_MULTIVIEW(TOKEN, LINE, REASON) { \ - if (context->getShaderVersion() < 300 && !context->isExtensionEnabled(TExtension::OVR_multiview)) { \ - context->error(LINE, REASON " supported in GLSL ES 3.00 and above only", TOKEN); \ - } \ -} - -#define ES3_1_ONLY(TOKEN, LINE, REASON) { \ - if (context->getShaderVersion() != 310) { \ - context->error(LINE, REASON " supported in GLSL ES 3.10 only", TOKEN); \ - } \ -} -%} - -%token <lex> INVARIANT HIGH_PRECISION MEDIUM_PRECISION LOW_PRECISION PRECISION -%token <lex> ATTRIBUTE CONST_QUAL BOOL_TYPE FLOAT_TYPE INT_TYPE UINT_TYPE -%token <lex> BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN SWITCH CASE DEFAULT -%token <lex> BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 VEC2 VEC3 VEC4 UVEC2 UVEC3 UVEC4 -%token <lex> MATRIX2 MATRIX3 MATRIX4 IN_QUAL OUT_QUAL INOUT_QUAL UNIFORM BUFFER VARYING -%token <lex> MATRIX2x3 MATRIX3x2 MATRIX2x4 MATRIX4x2 MATRIX3x4 MATRIX4x3 -%token <lex> CENTROID FLAT SMOOTH -%token <lex> READONLY WRITEONLY COHERENT RESTRICT VOLATILE SHARED -%token <lex> STRUCT VOID_TYPE WHILE -%token <lex> SAMPLER2D SAMPLERCUBE SAMPLER_EXTERNAL_OES SAMPLER2DRECT SAMPLER2DARRAY -%token <lex> ISAMPLER2D ISAMPLER3D ISAMPLERCUBE ISAMPLER2DARRAY -%token <lex> USAMPLER2D USAMPLER3D USAMPLERCUBE USAMPLER2DARRAY -%token <lex> SAMPLER2DMS ISAMPLER2DMS USAMPLER2DMS -%token <lex> SAMPLER3D SAMPLER3DRECT SAMPLER2DSHADOW SAMPLERCUBESHADOW SAMPLER2DARRAYSHADOW -%token <lex> SAMPLEREXTERNAL2DY2YEXT -%token <lex> IMAGE2D IIMAGE2D UIMAGE2D IMAGE3D IIMAGE3D UIMAGE3D IMAGE2DARRAY IIMAGE2DARRAY UIMAGE2DARRAY -%token <lex> IMAGECUBE IIMAGECUBE UIMAGECUBE -%token <lex> ATOMICUINT -%token <lex> LAYOUT -%token <lex> YUVCSCSTANDARDEXT YUVCSCSTANDARDEXTCONSTANT - -%token <lex> IDENTIFIER TYPE_NAME FLOATCONSTANT INTCONSTANT UINTCONSTANT BOOLCONSTANT -%token <lex> FIELD_SELECTION -%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 - -%type <lex> identifier -%type <interm.op> 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 - -%type <interm.intermNode> condition conditionopt -%type <interm.intermBlock> translation_unit -%type <interm.intermNode> function_definition statement simple_statement -%type <interm.intermBlock> statement_list compound_statement_with_scope compound_statement_no_new_scope -%type <interm.intermNode> declaration_statement selection_statement expression_statement -%type <interm.intermNode> declaration external_declaration -%type <interm.intermNode> for_init_statement -%type <interm.nodePair> selection_rest_statement for_rest_statement -%type <interm.intermSwitch> switch_statement -%type <interm.intermCase> case_label -%type <interm.intermNode> iteration_statement jump_statement statement_no_new_scope statement_with_scope -%type <interm> single_declaration init_declarator_list - -%type <interm.param> parameter_declaration parameter_declarator parameter_type_specifier -%type <interm.layoutQualifier> layout_qualifier_id_list layout_qualifier_id - -// Note: array_specifier guaranteed to be non-null. -%type <interm.arraySizes> array_specifier - -%type <interm.type> fully_specified_type type_specifier - -%type <interm.precision> precision_qualifier -%type <interm.layoutQualifier> layout_qualifier -%type <interm.qualifier> interpolation_qualifier -%type <interm.qualifierWrapper> storage_qualifier single_type_qualifier invariant_qualifier -%type <interm.typeQualifierBuilder> type_qualifier - -%type <interm.typeSpecifierNonArray> type_specifier_nonarray struct_specifier -%type <interm.type> type_specifier_no_prec -%type <interm.field> struct_declarator -%type <interm.fieldList> struct_declarator_list struct_declaration struct_declaration_list -%type <interm.function> function_header function_declarator function_identifier -%type <interm.function> function_header_with_parameters function_call_header -%type <interm> function_call_header_with_parameters function_call_header_no_parameters function_call_generic function_prototype -%type <interm> function_call_or_method - -%type <lex> enter_struct - -%start translation_unit -%% - -identifier - : IDENTIFIER - | TYPE_NAME - -variable_identifier - : IDENTIFIER { - // The symbol table search was done in the lexical phase - $$ = context->parseVariableIdentifier(@1, $1.string, $1.symbol); - - // don't delete $1.string, it's used by error recovery, and the pool - // pop will reclaim the memory - } - ; - -primary_expression - : variable_identifier { - $$ = $1; - } - | INTCONSTANT { - TConstantUnion *unionArray = new TConstantUnion[1]; - unionArray->setIConst($1.i); - $$ = context->addScalarLiteral(unionArray, @1); - } - | UINTCONSTANT { - TConstantUnion *unionArray = new TConstantUnion[1]; - unionArray->setUConst($1.u); - $$ = context->addScalarLiteral(unionArray, @1); - } - | FLOATCONSTANT { - TConstantUnion *unionArray = new TConstantUnion[1]; - unionArray->setFConst($1.f); - $$ = context->addScalarLiteral(unionArray, @1); - } - | BOOLCONSTANT { - TConstantUnion *unionArray = new TConstantUnion[1]; - unionArray->setBConst($1.b); - $$ = context->addScalarLiteral(unionArray, @1); - } - | YUVCSCSTANDARDEXTCONSTANT { - if (!context->checkCanUseExtension(@1, TExtension::EXT_YUV_target)) - { - context->error(@1, "unsupported value", $1.string->c_str()); - } - TConstantUnion *unionArray = new TConstantUnion[1]; - unionArray->setYuvCscStandardEXTConst(getYuvCscStandardEXT($1.string->c_str())); - $$ = context->addScalarLiteral(unionArray, @1); - } - | LEFT_PAREN expression RIGHT_PAREN { - $$ = $2; - } - ; - -postfix_expression - : primary_expression { - $$ = $1; - } - | postfix_expression LEFT_BRACKET integer_expression RIGHT_BRACKET { - $$ = context->addIndexExpression($1, @2, $3); - } - | function_call { - $$ = $1; - } - | postfix_expression DOT FIELD_SELECTION { - $$ = context->addFieldSelectionExpression($1, @2, *$3.string, @3); - } - | postfix_expression INC_OP { - $$ = context->addUnaryMathLValue(EOpPostIncrement, $1, @2); - } - | postfix_expression DEC_OP { - $$ = context->addUnaryMathLValue(EOpPostDecrement, $1, @2); - } - ; - -integer_expression - : expression { - context->checkIsScalarInteger($1, "[]"); - $$ = $1; - } - ; - -function_call - : function_call_or_method { - $$ = context->addFunctionCallOrMethod($1.function, $1.callOrMethodPair.arguments, $1.callOrMethodPair.thisNode, @1); - } - ; - -function_call_or_method - : function_call_generic { - $$ = $1; - $$.callOrMethodPair.thisNode = nullptr; - } - | postfix_expression DOT function_call_generic { - ES3_OR_NEWER("", @3, "methods"); - $$ = $3; - $$.callOrMethodPair.thisNode = $1; - } - ; - -function_call_generic - : function_call_header_with_parameters RIGHT_PAREN { - $$ = $1; - } - | function_call_header_no_parameters RIGHT_PAREN { - $$ = $1; - } - ; - -function_call_header_no_parameters - : function_call_header VOID_TYPE { - $$.function = $1; - $$.callOrMethodPair.arguments = context->createEmptyArgumentsList(); - } - | function_call_header { - $$.function = $1; - $$.callOrMethodPair.arguments = context->createEmptyArgumentsList(); - } - ; - -function_call_header_with_parameters - : function_call_header assignment_expression { - $$.callOrMethodPair.arguments = context->createEmptyArgumentsList(); - $$.function = $1; - $$.callOrMethodPair.arguments->push_back($2); - } - | function_call_header_with_parameters COMMA assignment_expression { - $$.function = $1.function; - $$.callOrMethodPair.arguments->push_back($3); - } - ; - -function_call_header - : function_identifier LEFT_PAREN { - $$ = $1; - } - ; - -// Grammar Note: Constructors look like functions, but are recognized as types. - -function_identifier - : type_specifier_no_prec { - $$ = context->addConstructorFunc($1); - } - | IDENTIFIER { - $$ = context->addNonConstructorFunc($1.string, @1); - } - | FIELD_SELECTION { - $$ = context->addNonConstructorFunc($1.string, @1); - } - ; - -unary_expression - : postfix_expression { - $$ = $1; - } - | INC_OP unary_expression { - $$ = context->addUnaryMathLValue(EOpPreIncrement, $2, @1); - } - | DEC_OP unary_expression { - $$ = context->addUnaryMathLValue(EOpPreDecrement, $2, @1); - } - | unary_operator unary_expression { - $$ = context->addUnaryMath($1, $2, @1); - } - ; -// Grammar Note: No traditional style type casts. - -unary_operator - : PLUS { $$ = EOpPositive; } - | DASH { $$ = EOpNegative; } - | BANG { $$ = EOpLogicalNot; } - | TILDE { - ES3_OR_NEWER("~", @$, "bit-wise operator"); - $$ = EOpBitwiseNot; - } - ; -// Grammar Note: No '*' or '&' unary ops. Pointers are not supported. - -multiplicative_expression - : unary_expression { $$ = $1; } - | multiplicative_expression STAR unary_expression { - $$ = context->addBinaryMath(EOpMul, $1, $3, @2); - } - | multiplicative_expression SLASH unary_expression { - $$ = context->addBinaryMath(EOpDiv, $1, $3, @2); - } - | multiplicative_expression PERCENT unary_expression { - ES3_OR_NEWER("%", @2, "integer modulus operator"); - $$ = context->addBinaryMath(EOpIMod, $1, $3, @2); - } - ; - -additive_expression - : multiplicative_expression { $$ = $1; } - | additive_expression PLUS multiplicative_expression { - $$ = context->addBinaryMath(EOpAdd, $1, $3, @2); - } - | additive_expression DASH multiplicative_expression { - $$ = context->addBinaryMath(EOpSub, $1, $3, @2); - } - ; - -shift_expression - : additive_expression { $$ = $1; } - | shift_expression LEFT_OP additive_expression { - ES3_OR_NEWER("<<", @2, "bit-wise operator"); - $$ = context->addBinaryMath(EOpBitShiftLeft, $1, $3, @2); - } - | shift_expression RIGHT_OP additive_expression { - ES3_OR_NEWER(">>", @2, "bit-wise operator"); - $$ = context->addBinaryMath(EOpBitShiftRight, $1, $3, @2); - } - ; - -relational_expression - : shift_expression { $$ = $1; } - | relational_expression LEFT_ANGLE shift_expression { - $$ = context->addBinaryMathBooleanResult(EOpLessThan, $1, $3, @2); - } - | relational_expression RIGHT_ANGLE shift_expression { - $$ = context->addBinaryMathBooleanResult(EOpGreaterThan, $1, $3, @2); - } - | relational_expression LE_OP shift_expression { - $$ = context->addBinaryMathBooleanResult(EOpLessThanEqual, $1, $3, @2); - } - | relational_expression GE_OP shift_expression { - $$ = context->addBinaryMathBooleanResult(EOpGreaterThanEqual, $1, $3, @2); - } - ; - -equality_expression - : relational_expression { $$ = $1; } - | equality_expression EQ_OP relational_expression { - $$ = context->addBinaryMathBooleanResult(EOpEqual, $1, $3, @2); - } - | equality_expression NE_OP relational_expression { - $$ = context->addBinaryMathBooleanResult(EOpNotEqual, $1, $3, @2); - } - ; - -and_expression - : equality_expression { $$ = $1; } - | and_expression AMPERSAND equality_expression { - ES3_OR_NEWER("&", @2, "bit-wise operator"); - $$ = context->addBinaryMath(EOpBitwiseAnd, $1, $3, @2); - } - ; - -exclusive_or_expression - : and_expression { $$ = $1; } - | exclusive_or_expression CARET and_expression { - ES3_OR_NEWER("^", @2, "bit-wise operator"); - $$ = context->addBinaryMath(EOpBitwiseXor, $1, $3, @2); - } - ; - -inclusive_or_expression - : exclusive_or_expression { $$ = $1; } - | inclusive_or_expression VERTICAL_BAR exclusive_or_expression { - ES3_OR_NEWER("|", @2, "bit-wise operator"); - $$ = context->addBinaryMath(EOpBitwiseOr, $1, $3, @2); - } - ; - -logical_and_expression - : inclusive_or_expression { $$ = $1; } - | logical_and_expression AND_OP inclusive_or_expression { - $$ = context->addBinaryMathBooleanResult(EOpLogicalAnd, $1, $3, @2); - } - ; - -logical_xor_expression - : logical_and_expression { $$ = $1; } - | logical_xor_expression XOR_OP logical_and_expression { - $$ = context->addBinaryMathBooleanResult(EOpLogicalXor, $1, $3, @2); - } - ; - -logical_or_expression - : logical_xor_expression { $$ = $1; } - | logical_or_expression OR_OP logical_xor_expression { - $$ = context->addBinaryMathBooleanResult(EOpLogicalOr, $1, $3, @2); - } - ; - -conditional_expression - : logical_or_expression { $$ = $1; } - | logical_or_expression QUESTION expression COLON assignment_expression { - $$ = context->addTernarySelection($1, $3, $5, @2); - } - ; - -assignment_expression - : conditional_expression { $$ = $1; } - | unary_expression assignment_operator assignment_expression { - $$ = context->addAssign($2, $1, $3, @2); - } - ; - -assignment_operator - : EQUAL { $$ = EOpAssign; } - | MUL_ASSIGN { $$ = EOpMulAssign; } - | DIV_ASSIGN { $$ = EOpDivAssign; } - | MOD_ASSIGN { - ES3_OR_NEWER("%=", @$, "integer modulus operator"); - $$ = EOpIModAssign; - } - | ADD_ASSIGN { $$ = EOpAddAssign; } - | SUB_ASSIGN { $$ = EOpSubAssign; } - | LEFT_ASSIGN { - ES3_OR_NEWER("<<=", @$, "bit-wise operator"); - $$ = EOpBitShiftLeftAssign; - } - | RIGHT_ASSIGN { - ES3_OR_NEWER(">>=", @$, "bit-wise operator"); - $$ = EOpBitShiftRightAssign; - } - | AND_ASSIGN { - ES3_OR_NEWER("&=", @$, "bit-wise operator"); - $$ = EOpBitwiseAndAssign; - } - | XOR_ASSIGN { - ES3_OR_NEWER("^=", @$, "bit-wise operator"); - $$ = EOpBitwiseXorAssign; - } - | OR_ASSIGN { - ES3_OR_NEWER("|=", @$, "bit-wise operator"); - $$ = EOpBitwiseOrAssign; - } - ; - -expression - : assignment_expression { - $$ = $1; - } - | expression COMMA assignment_expression { - $$ = context->addComma($1, $3, @2); - } - ; - -constant_expression - : conditional_expression { - context->checkIsConst($1); - $$ = $1; - } - ; - -enter_struct - : IDENTIFIER LEFT_BRACE { - context->enterStructDeclaration(@1, *$1.string); - $$ = $1; - } - ; - -declaration - : function_prototype SEMICOLON { - $$ = context->addFunctionPrototypeDeclaration(*($1.function), @1); - } - | init_declarator_list SEMICOLON { - $$ = $1.intermDeclaration; - } - | PRECISION precision_qualifier type_specifier_no_prec SEMICOLON { - context->parseDefaultPrecisionQualifier($2, $3, @1); - $$ = nullptr; - } - | type_qualifier enter_struct struct_declaration_list RIGHT_BRACE SEMICOLON { - ES3_OR_NEWER($2.string->c_str(), @1, "interface blocks"); - $$ = context->addInterfaceBlock(*$1, @2, *$2.string, $3, NULL, @$, NULL, @$); - } - | type_qualifier enter_struct struct_declaration_list RIGHT_BRACE IDENTIFIER SEMICOLON { - ES3_OR_NEWER($2.string->c_str(), @1, "interface blocks"); - $$ = context->addInterfaceBlock(*$1, @2, *$2.string, $3, $5.string, @5, NULL, @$); - } - | type_qualifier enter_struct struct_declaration_list RIGHT_BRACE IDENTIFIER LEFT_BRACKET constant_expression RIGHT_BRACKET SEMICOLON { - ES3_OR_NEWER($2.string->c_str(), @1, "interface blocks"); - $$ = context->addInterfaceBlock(*$1, @2, *$2.string, $3, $5.string, @5, $7, @6); - } - | type_qualifier SEMICOLON { - context->parseGlobalLayoutQualifier(*$1); - $$ = nullptr; - } - | type_qualifier IDENTIFIER SEMICOLON // e.g. to qualify an existing variable as invariant - { - $$ = context->parseInvariantDeclaration(*$1, @2, $2.string, $2.symbol); - } - ; - -function_prototype - : function_declarator RIGHT_PAREN { - $$.function = context->parseFunctionDeclarator(@2, $1); - context->exitFunctionDeclaration(); - } - ; - -function_declarator - : function_header { - $$ = $1; - } - | function_header_with_parameters { - $$ = $1; - } - ; - - -function_header_with_parameters - : function_header parameter_declaration { - // Add the parameter - $$ = $1; - if ($2.type->getBasicType() != EbtVoid) - { - $1->addParameter($2.turnToConst()); - } - } - | function_header_with_parameters COMMA parameter_declaration { - $$ = $1; - // Only first parameter of one-parameter functions can be void - // The check for named parameters not being void is done in parameter_declarator - if ($3.type->getBasicType() == EbtVoid) - { - // This parameter > first is void - context->error(@2, "cannot be a parameter type except for '(void)'", "void"); - } - else - { - $1->addParameter($3.turnToConst()); - } - } - ; - -function_header - : fully_specified_type IDENTIFIER LEFT_PAREN { - $$ = context->parseFunctionHeader($1, $2.string, @2); - - context->symbolTable.push(); - context->enterFunctionDeclaration(); - } - ; - -parameter_declarator - // Type + name - : type_specifier identifier { - $$ = context->parseParameterDeclarator($1, $2.string, @2); - } - | type_specifier identifier array_specifier { - $$ = context->parseParameterArrayDeclarator($2.string, @2, *($3), @3, &$1); - } - ; - -parameter_declaration - : type_qualifier parameter_declarator { - $$ = $2; - context->checkIsParameterQualifierValid(@2, *$1, $2.type); - } - | parameter_declarator { - $$ = $1; - $$.type->setQualifier(EvqIn); - } - | type_qualifier parameter_type_specifier { - $$ = $2; - context->checkIsParameterQualifierValid(@2, *$1, $2.type); - } - | parameter_type_specifier { - $$ = $1; - $$.type->setQualifier(EvqIn); - } - ; - -parameter_type_specifier - : type_specifier { - TParameter param = { 0, new TType($1) }; - $$ = param; - } - ; - -init_declarator_list - : single_declaration { - $$ = $1; - } - | init_declarator_list COMMA identifier { - $$ = $1; - context->parseDeclarator($$.type, @3, *$3.string, $$.intermDeclaration); - } - | init_declarator_list COMMA identifier array_specifier { - $$ = $1; - context->parseArrayDeclarator($$.type, @3, *$3.string, @4, *($4), $$.intermDeclaration); - } - | init_declarator_list COMMA identifier array_specifier EQUAL initializer { - ES3_OR_NEWER("=", @5, "first-class arrays (array initializer)"); - $$ = $1; - context->parseArrayInitDeclarator($$.type, @3, *$3.string, @4, *($4), @5, $6, $$.intermDeclaration); - } - | init_declarator_list COMMA identifier EQUAL initializer { - $$ = $1; - context->parseInitDeclarator($$.type, @3, *$3.string, @4, $5, $$.intermDeclaration); - } - ; - -single_declaration - : fully_specified_type { - $$.type = $1; - $$.intermDeclaration = context->parseSingleDeclaration($$.type, @1, ""); - } - | fully_specified_type identifier { - $$.type = $1; - $$.intermDeclaration = context->parseSingleDeclaration($$.type, @2, *$2.string); - } - | fully_specified_type identifier array_specifier { - $$.type = $1; - $$.intermDeclaration = context->parseSingleArrayDeclaration($$.type, @2, *$2.string, @3, *($3)); - } - | fully_specified_type identifier array_specifier EQUAL initializer { - ES3_OR_NEWER("[]", @3, "first-class arrays (array initializer)"); - $$.type = $1; - $$.intermDeclaration = context->parseSingleArrayInitDeclaration($$.type, @2, *$2.string, @3, *($3), @4, $5); - } - | fully_specified_type identifier EQUAL initializer { - $$.type = $1; - $$.intermDeclaration = context->parseSingleInitDeclaration($$.type, @2, *$2.string, @3, $4); - } - ; - -fully_specified_type - : type_specifier { - context->addFullySpecifiedType(&$1); - $$ = $1; - } - | type_qualifier type_specifier { - $$ = context->addFullySpecifiedType(*$1, $2); - } - ; - -interpolation_qualifier - : SMOOTH { - $$ = EvqSmooth; - } - | FLAT { - $$ = EvqFlat; - } - ; - -type_qualifier - : single_type_qualifier { - $$ = context->createTypeQualifierBuilder(@1); - $$->appendQualifier($1); - } - | type_qualifier single_type_qualifier { - $$ = $1; - $$->appendQualifier($2); - } - ; - -invariant_qualifier - : INVARIANT { - // empty - } - ; - -single_type_qualifier - : storage_qualifier { - context->checkLocalVariableConstStorageQualifier(*$1); - $$ = $1; - } - | layout_qualifier { - context->checkIsAtGlobalLevel(@1, "layout"); - $$ = new TLayoutQualifierWrapper($1, @1); - } - | precision_qualifier { - $$ = new TPrecisionQualifierWrapper($1, @1); - } - | interpolation_qualifier { - $$ = new TInterpolationQualifierWrapper($1, @1); - } - | invariant_qualifier { - context->checkIsAtGlobalLevel(@1, "invariant"); - $$ = new TInvariantQualifierWrapper(@1); - } - ; - - -storage_qualifier - : - ATTRIBUTE { - VERTEX_ONLY("attribute", @1); - ES2_ONLY("attribute", @1); - $$ = context->parseGlobalStorageQualifier(EvqAttribute, @1); - } - | VARYING { - ES2_ONLY("varying", @1); - $$ = context->parseVaryingQualifier(@1); - } - | CONST_QUAL { - $$ = new TStorageQualifierWrapper(EvqConst, @1); - } - | IN_QUAL { - $$ = context->parseInQualifier(@1); - } - | OUT_QUAL { - $$ = context->parseOutQualifier(@1); - } - | INOUT_QUAL { - $$ = context->parseInOutQualifier(@1); - } - | CENTROID { - ES3_OR_NEWER("centroid", @1, "storage qualifier"); - $$ = new TStorageQualifierWrapper(EvqCentroid, @1); - } - | UNIFORM { - $$ = context->parseGlobalStorageQualifier(EvqUniform, @1); - } - | BUFFER { - ES3_1_ONLY("buffer", @1, "storage qualifier"); - $$ = context->parseGlobalStorageQualifier(EvqBuffer, @1); - } - | READONLY { - $$ = new TMemoryQualifierWrapper(EvqReadOnly, @1); - } - | WRITEONLY { - $$ = new TMemoryQualifierWrapper(EvqWriteOnly, @1); - } - | COHERENT { - $$ = new TMemoryQualifierWrapper(EvqCoherent, @1); - } - | RESTRICT { - $$ = new TMemoryQualifierWrapper(EvqRestrict, @1); - } - | VOLATILE { - $$ = new TMemoryQualifierWrapper(EvqVolatile, @1); - } - | SHARED { - COMPUTE_ONLY("shared", @1); - $$ = context->parseGlobalStorageQualifier(EvqShared, @1); - } - ; - -type_specifier - : type_specifier_no_prec { - $$ = $1; - $$.precision = context->symbolTable.getDefaultPrecision($1.getBasicType()); - } - ; - -precision_qualifier - : HIGH_PRECISION { - $$ = EbpHigh; - } - | MEDIUM_PRECISION { - $$ = EbpMedium; - } - | LOW_PRECISION { - $$ = EbpLow; - } - ; - -layout_qualifier - : LAYOUT LEFT_PAREN layout_qualifier_id_list RIGHT_PAREN { - ES3_OR_NEWER_OR_MULTIVIEW("layout", @1, "qualifier"); - $$ = $3; - } - ; - -layout_qualifier_id_list - : layout_qualifier_id { - $$ = $1; - } - | layout_qualifier_id_list COMMA layout_qualifier_id { - $$ = context->joinLayoutQualifiers($1, $3, @3); - } - ; - -layout_qualifier_id - : IDENTIFIER { - $$ = context->parseLayoutQualifier(*$1.string, @1); - } - | IDENTIFIER EQUAL INTCONSTANT { - $$ = context->parseLayoutQualifier(*$1.string, @1, $3.i, @3); - } - | IDENTIFIER EQUAL UINTCONSTANT { - $$ = context->parseLayoutQualifier(*$1.string, @1, $3.i, @3); - } - | SHARED { - $$ = context->parseLayoutQualifier("shared", @1); - } - ; - -type_specifier_no_prec - : type_specifier_nonarray { - $$.initialize($1, (context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary)); - } - | type_specifier_nonarray array_specifier { - $$.initialize($1, (context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary)); - $$.setArraySizes($2); - } - ; - -array_specifier - : LEFT_BRACKET RIGHT_BRACKET { - ES3_OR_NEWER("[]", @1, "implicitly sized array"); - $$ = new TVector<unsigned int>(); - $$->push_back(0u); - } - | LEFT_BRACKET constant_expression RIGHT_BRACKET { - $$ = new TVector<unsigned int>(); - unsigned int size = context->checkIsValidArraySize(@1, $2); - // Make the type an array even if size check failed. - // This ensures useless error messages regarding a variable's non-arrayness won't follow. - $$->push_back(size); - } - | array_specifier LEFT_BRACKET RIGHT_BRACKET { - ES3_1_ONLY("[]", @2, "arrays of arrays"); - $$ = $1; - $$->insert($$->begin(), 0u); - } - | array_specifier LEFT_BRACKET constant_expression RIGHT_BRACKET { - ES3_1_ONLY("[]", @2, "arrays of arrays"); - $$ = $1; - unsigned int size = context->checkIsValidArraySize(@2, $3); - // Make the type an array even if size check failed. - // This ensures useless error messages regarding a variable's non-arrayness won't follow. - $$->insert($$->begin(), size); - } - ; - -type_specifier_nonarray - : VOID_TYPE { - $$.initialize(EbtVoid, @1); - } - | FLOAT_TYPE { - $$.initialize(EbtFloat, @1); - } - | INT_TYPE { - $$.initialize(EbtInt, @1); - } - | UINT_TYPE { - $$.initialize(EbtUInt, @1); - } - | BOOL_TYPE { - $$.initialize(EbtBool, @1); - } - | VEC2 { - $$.initialize(EbtFloat, @1); - $$.setAggregate(2); - } - | VEC3 { - $$.initialize(EbtFloat, @1); - $$.setAggregate(3); - } - | VEC4 { - $$.initialize(EbtFloat, @1); - $$.setAggregate(4); - } - | BVEC2 { - $$.initialize(EbtBool, @1); - $$.setAggregate(2); - } - | BVEC3 { - $$.initialize(EbtBool, @1); - $$.setAggregate(3); - } - | BVEC4 { - $$.initialize(EbtBool, @1); - $$.setAggregate(4); - } - | IVEC2 { - $$.initialize(EbtInt, @1); - $$.setAggregate(2); - } - | IVEC3 { - $$.initialize(EbtInt, @1); - $$.setAggregate(3); - } - | IVEC4 { - $$.initialize(EbtInt, @1); - $$.setAggregate(4); - } - | UVEC2 { - $$.initialize(EbtUInt, @1); - $$.setAggregate(2); - } - | UVEC3 { - $$.initialize(EbtUInt, @1); - $$.setAggregate(3); - } - | UVEC4 { - $$.initialize(EbtUInt, @1); - $$.setAggregate(4); - } - | MATRIX2 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(2, 2); - } - | MATRIX3 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(3, 3); - } - | MATRIX4 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(4, 4); - } - | MATRIX2x3 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(2, 3); - } - | MATRIX3x2 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(3, 2); - } - | MATRIX2x4 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(2, 4); - } - | MATRIX4x2 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(4, 2); - } - | MATRIX3x4 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(3, 4); - } - | MATRIX4x3 { - $$.initialize(EbtFloat, @1); - $$.setMatrix(4, 3); - } - | YUVCSCSTANDARDEXT { - if (!context->checkCanUseExtension(@1, TExtension::EXT_YUV_target)) - { - context->error(@1, "unsupported type", "yuvCscStandardEXT"); - } - $$.initialize(EbtYuvCscStandardEXT, @1); - } - | SAMPLER2D { - $$.initialize(EbtSampler2D, @1); - } - | SAMPLER3D { - $$.initialize(EbtSampler3D, @1); - } - | SAMPLERCUBE { - $$.initialize(EbtSamplerCube, @1); - } - | SAMPLER2DARRAY { - $$.initialize(EbtSampler2DArray, @1); - } - | SAMPLER2DMS { - $$.initialize(EbtSampler2DMS, @1); - } - | ISAMPLER2D { - $$.initialize(EbtISampler2D, @1); - } - | ISAMPLER3D { - $$.initialize(EbtISampler3D, @1); - } - | ISAMPLERCUBE { - $$.initialize(EbtISamplerCube, @1); - } - | ISAMPLER2DARRAY { - $$.initialize(EbtISampler2DArray, @1); - } - | ISAMPLER2DMS { - $$.initialize(EbtISampler2DMS, @1); - } - | USAMPLER2D { - $$.initialize(EbtUSampler2D, @1); - } - | USAMPLER3D { - $$.initialize(EbtUSampler3D, @1); - } - | USAMPLERCUBE { - $$.initialize(EbtUSamplerCube, @1); - } - | USAMPLER2DARRAY { - $$.initialize(EbtUSampler2DArray, @1); - } - | USAMPLER2DMS { - $$.initialize(EbtUSampler2DMS, @1); - } - | SAMPLER2DSHADOW { - $$.initialize(EbtSampler2DShadow, @1); - } - | SAMPLERCUBESHADOW { - $$.initialize(EbtSamplerCubeShadow, @1); - } - | SAMPLER2DARRAYSHADOW { - $$.initialize(EbtSampler2DArrayShadow, @1); - } - | SAMPLER_EXTERNAL_OES { - constexpr std::array<TExtension, 3u> extensions{ { TExtension::NV_EGL_stream_consumer_external, - TExtension::OES_EGL_image_external_essl3, - TExtension::OES_EGL_image_external } }; - if (!context->checkCanUseOneOfExtensions(@1, extensions)) - { - context->error(@1, "unsupported type", "samplerExternalOES"); - } - $$.initialize(EbtSamplerExternalOES, @1); - } - | SAMPLEREXTERNAL2DY2YEXT { - if (!context->checkCanUseExtension(@1, TExtension::EXT_YUV_target)) - { - context->error(@1, "unsupported type", "__samplerExternal2DY2YEXT"); - } - $$.initialize(EbtSamplerExternal2DY2YEXT, @1); - } - | SAMPLER2DRECT { - if (!context->checkCanUseExtension(@1, TExtension::ARB_texture_rectangle)) - { - context->error(@1, "unsupported type", "sampler2DRect"); - } - $$.initialize(EbtSampler2DRect, @1); - } - | struct_specifier { - $$ = $1; - } - | IMAGE2D { - $$.initialize(EbtImage2D, @1); - } - | IIMAGE2D { - $$.initialize(EbtIImage2D, @1); - } - | UIMAGE2D { - $$.initialize(EbtUImage2D, @1); - } - | IMAGE3D { - $$.initialize(EbtImage3D, @1); - } - | IIMAGE3D { - $$.initialize(EbtIImage3D, @1); - } - | UIMAGE3D { - $$.initialize(EbtUImage3D, @1); - } - | IMAGE2DARRAY { - $$.initialize(EbtImage2DArray, @1); - } - | IIMAGE2DARRAY { - $$.initialize(EbtIImage2DArray, @1); - } - | UIMAGE2DARRAY { - $$.initialize(EbtUImage2DArray, @1); - } - | IMAGECUBE { - $$.initialize(EbtImageCube, @1); - } - | IIMAGECUBE { - $$.initialize(EbtIImageCube, @1); - } - | UIMAGECUBE { - $$.initialize(EbtUImageCube, @1); - } - | ATOMICUINT { - $$.initialize(EbtAtomicCounter, @1); - } - | TYPE_NAME { - // This is for user defined type names. The lexical phase looked up the type. - TType& structure = static_cast<TVariable*>($1.symbol)->getType(); - $$.initializeStruct(structure.getStruct(), false, @1); - } - ; - -struct_specifier - : STRUCT identifier LEFT_BRACE { context->enterStructDeclaration(@2, *$2.string); } struct_declaration_list RIGHT_BRACE { - $$ = context->addStructure(@1, @2, $2.string, $5); - } - | STRUCT LEFT_BRACE { context->enterStructDeclaration(@2, *$2.string); } struct_declaration_list RIGHT_BRACE { - $$ = context->addStructure(@1, @$, NewPoolTString(""), $4); - } - ; - -struct_declaration_list - : struct_declaration { - $$ = context->addStructFieldList($1, @1); - } - | struct_declaration_list struct_declaration { - $$ = context->combineStructFieldLists($1, $2, @2); - } - ; - -struct_declaration - : type_specifier struct_declarator_list SEMICOLON { - $$ = context->addStructDeclaratorList($1, $2); - } - | type_qualifier type_specifier struct_declarator_list SEMICOLON { - // ES3 Only, but errors should be handled elsewhere - $$ = context->addStructDeclaratorListWithQualifiers(*$1, &$2, $3); - } - ; - -struct_declarator_list - : struct_declarator { - $$ = NewPoolTFieldList(); - $$->push_back($1); - } - | struct_declarator_list COMMA struct_declarator { - $$->push_back($3); - } - ; - -struct_declarator - : identifier { - $$ = context->parseStructDeclarator($1.string, @1); - } - | identifier array_specifier { - $$ = context->parseStructArrayDeclarator($1.string, @1, *($2), @2); - } - ; - -initializer - : assignment_expression { $$ = $1; } - ; - -declaration_statement - : declaration { $$ = $1; } - ; - -statement - : compound_statement_with_scope { $$ = $1; } - | simple_statement { $$ = $1; } - ; - -// Grammar Note: Labeled statements for SWITCH only; 'goto' is not supported. - -simple_statement - : declaration_statement { $$ = $1; } - | expression_statement { $$ = $1; } - | selection_statement { $$ = $1; } - | switch_statement { $$ = $1; } - | case_label { $$ = $1; } - | iteration_statement { $$ = $1; } - | jump_statement { $$ = $1; } - ; - -compound_statement_with_scope - : LEFT_BRACE RIGHT_BRACE { - $$ = new TIntermBlock(); - $$->setLine(@$); - } - | LEFT_BRACE { context->symbolTable.push(); } statement_list { context->symbolTable.pop(); } RIGHT_BRACE { - $3->setLine(@$); - $$ = $3; - } - ; - -statement_no_new_scope - : compound_statement_no_new_scope { $$ = $1; } - | simple_statement { $$ = $1; } - ; - -statement_with_scope - : { context->symbolTable.push(); } compound_statement_no_new_scope { context->symbolTable.pop(); $$ = $2; } - | { context->symbolTable.push(); } simple_statement { context->symbolTable.pop(); $$ = $2; } - ; - -compound_statement_no_new_scope - // Statement that doesn't create a new scope for iteration_statement, function definition (scope is created for parameters) - : LEFT_BRACE RIGHT_BRACE { - $$ = new TIntermBlock(); - $$->setLine(@$); - } - | LEFT_BRACE statement_list RIGHT_BRACE { - $2->setLine(@$); - $$ = $2; - } - ; - -statement_list - : statement { - $$ = new TIntermBlock(); - $$->appendStatement($1); - } - | statement_list statement { - $$ = $1; - $$->appendStatement($2); - } - ; - -expression_statement - : SEMICOLON { $$ = context->addEmptyStatement(@$); } - | expression SEMICOLON { $$ = $1; } - ; - -selection_statement - : IF LEFT_PAREN expression RIGHT_PAREN selection_rest_statement { - $$ = context->addIfElse($3, $5, @1); - } - ; - -selection_rest_statement - : statement_with_scope ELSE statement_with_scope { - $$.node1 = $1; - $$.node2 = $3; - } - | statement_with_scope { - $$.node1 = $1; - $$.node2 = nullptr; - } - ; - -// Note that we've diverged from the spec grammar here a bit for the sake of simplicity. -// We're reusing compound_statement_with_scope instead of having separate rules for switch. -switch_statement - : SWITCH LEFT_PAREN expression RIGHT_PAREN { context->incrSwitchNestingLevel(); } compound_statement_with_scope { - $$ = context->addSwitch($3, $6, @1); - context->decrSwitchNestingLevel(); - } - ; - -case_label - : CASE constant_expression COLON { - $$ = context->addCase($2, @1); - } - | DEFAULT COLON { - $$ = context->addDefault(@1); - } - ; - -condition - : expression { - $$ = $1; - context->checkIsScalarBool($1->getLine(), $1); - } - | fully_specified_type identifier EQUAL initializer { - $$ = context->addConditionInitializer($1, *$2.string, $4, @2); - } - ; - -iteration_statement - : WHILE LEFT_PAREN { context->symbolTable.push(); context->incrLoopNestingLevel(); } condition RIGHT_PAREN statement_no_new_scope { - context->symbolTable.pop(); - $$ = context->addLoop(ELoopWhile, 0, $4, 0, $6, @1); - context->decrLoopNestingLevel(); - } - | DO { context->incrLoopNestingLevel(); } statement_with_scope WHILE LEFT_PAREN expression RIGHT_PAREN SEMICOLON { - $$ = context->addLoop(ELoopDoWhile, 0, $6, 0, $3, @4); - context->decrLoopNestingLevel(); - } - | FOR LEFT_PAREN { context->symbolTable.push(); context->incrLoopNestingLevel(); } for_init_statement for_rest_statement RIGHT_PAREN statement_no_new_scope { - context->symbolTable.pop(); - $$ = context->addLoop(ELoopFor, $4, $5.node1, reinterpret_cast<TIntermTyped*>($5.node2), $7, @1); - context->decrLoopNestingLevel(); - } - ; - -for_init_statement - : expression_statement { - $$ = $1; - } - | declaration_statement { - $$ = $1; - } - ; - -conditionopt - : condition { - $$ = $1; - } - | /* May be null */ { - $$ = nullptr; - } - ; - -for_rest_statement - : conditionopt SEMICOLON { - $$.node1 = $1; - $$.node2 = 0; - } - | conditionopt SEMICOLON expression { - $$.node1 = $1; - $$.node2 = $3; - } - ; - -jump_statement - : CONTINUE SEMICOLON { - $$ = context->addBranch(EOpContinue, @1); - } - | BREAK SEMICOLON { - $$ = context->addBranch(EOpBreak, @1); - } - | RETURN SEMICOLON { - $$ = context->addBranch(EOpReturn, @1); - } - | RETURN expression SEMICOLON { - $$ = context->addBranch(EOpReturn, $2, @1); - } - | DISCARD SEMICOLON { - $$ = context->addBranch(EOpKill, @1); - } - ; - -// Grammar Note: No 'goto'. Gotos are not supported. - -translation_unit - : external_declaration { - $$ = new TIntermBlock(); - $$->setLine(@$); - $$->appendStatement($1); - context->setTreeRoot($$); - } - | translation_unit external_declaration { - $$->appendStatement($2); - } - ; - -external_declaration - : function_definition { - $$ = $1; - } - | declaration { - $$ = $1; - } - ; - -function_definition - : function_prototype { - context->parseFunctionDefinitionHeader(@1, &($1.function), &($1.intermFunctionPrototype)); - } - compound_statement_no_new_scope { - $$ = context->addFunctionDefinition($1.intermFunctionPrototype, $3, @1); - } - ; - -%% - -int glslang_parse(TParseContext* context) { - return yyparse(context, context->getScanner()); -} |