diff options
Diffstat (limited to 'chromium/third_party/angle/src/compiler/glslang.y')
| -rw-r--r-- | chromium/third_party/angle/src/compiler/glslang.y | 2002 |
1 files changed, 0 insertions, 2002 deletions
diff --git a/chromium/third_party/angle/src/compiler/glslang.y b/chromium/third_party/angle/src/compiler/glslang.y deleted file mode 100644 index a8dceb40acb..00000000000 --- a/chromium/third_party/angle/src/compiler/glslang.y +++ /dev/null @@ -1,2002 +0,0 @@ -/* -// -// Copyright (c) 2002-2013 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) 2002-2010 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! - -// 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: 4505) -#pragma warning(disable: 4701) -#endif - -#include "compiler/SymbolTable.h" -#include "compiler/ParseContext.h" -#include "GLSLANG/ShaderLang.h" - -#define YYENABLE_NLS 0 - -#define YYLEX_PARAM context->scanner -%} - -%expect 1 /* One shift reduce conflict because of if | else */ -%pure-parser -%parse-param {TParseContext* context} -%locations - -%code requires { -#define YYLTYPE TSourceLoc -#define YYLTYPE_IS_DECLARED 1 -#define SH_MAX_TOKEN_LENGTH 256 // WebGL spec. -} - -%union { - struct { - union { - TString *string; - float f; - int i; - bool b; - }; - TSymbol* symbol; - } lex; - struct { - TOperator op; - union { - TIntermNode* intermNode; - TIntermNodePair nodePair; - TIntermTyped* intermTypedNode; - TIntermAggregate* intermAggregate; - }; - union { - TPublicType type; - TPrecision precision; - TQualifier qualifier; - TFunction* function; - TParameter param; - TField* field; - TFieldList* fieldList; - }; - } interm; -} - -%{ -extern int yylex(YYSTYPE* yylval, YYLTYPE* yylloc, void* yyscanner); -extern void yyerror(YYLTYPE* yylloc, TParseContext* context, const char* reason); - -#define YYLLOC_DEFAULT(Current, Rhs, N) \ - do { \ - if (YYID(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->shaderType != SH_VERTEX_SHADER) { \ - context->error(L, " supported in vertex shaders only ", S); \ - context->recover(); \ - } \ -} - -#define FRAG_ONLY(S, L) { \ - if (context->shaderType != SH_FRAGMENT_SHADER) { \ - context->error(L, " supported in fragment shaders only ", S); \ - context->recover(); \ - } \ -} -%} - -%token <lex> INVARIANT HIGH_PRECISION MEDIUM_PRECISION LOW_PRECISION PRECISION -%token <lex> ATTRIBUTE CONST_QUAL BOOL_TYPE FLOAT_TYPE INT_TYPE -%token <lex> BREAK CONTINUE DO ELSE FOR IF DISCARD RETURN -%token <lex> BVEC2 BVEC3 BVEC4 IVEC2 IVEC3 IVEC4 VEC2 VEC3 VEC4 -%token <lex> MATRIX2 MATRIX3 MATRIX4 IN_QUAL OUT_QUAL INOUT_QUAL UNIFORM VARYING -%token <lex> STRUCT VOID_TYPE WHILE -%token <lex> SAMPLER2D SAMPLERCUBE SAMPLER_EXTERNAL_OES SAMPLER2DRECT - -%token <lex> IDENTIFIER TYPE_NAME FLOATCONSTANT INTCONSTANT 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 - -%type <lex> identifier -%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 condition conditionopt - -%type <interm.intermNode> translation_unit function_definition -%type <interm.intermNode> statement simple_statement -%type <interm.intermAggregate> statement_list compound_statement -%type <interm.intermNode> declaration_statement selection_statement expression_statement -%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_with_scope -%type <interm> single_declaration init_declarator_list - -%type <interm> parameter_declaration parameter_declarator parameter_type_specifier -%type <interm.qualifier> parameter_qualifier - -%type <interm.precision> precision_qualifier -%type <interm.type> type_qualifier fully_specified_type type_specifier -%type <interm.type> type_specifier_no_prec type_specifier_nonarray -%type <interm.type> struct_specifier -%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 - -%start translation_unit -%% - -identifier - : IDENTIFIER - | TYPE_NAME - -variable_identifier - : IDENTIFIER { - // The symbol table search was done in the lexical phase - const TSymbol* symbol = $1.symbol; - const TVariable* variable; - if (symbol == 0) { - context->error(@1, "undeclared identifier", $1.string->c_str()); - context->recover(); - TType type(EbtFloat, EbpUndefined); - TVariable* fakeVariable = new TVariable($1.string, type); - context->symbolTable.insert(*fakeVariable); - variable = fakeVariable; - } else { - // This identifier can only be a variable type symbol - if (! symbol->isVariable()) { - context->error(@1, "variable expected", $1.string->c_str()); - context->recover(); - } - - variable = static_cast<const TVariable*>(symbol); - - if (context->symbolTable.findBuiltIn(variable->getName()) && - !variable->getExtension().empty() && - context->extensionErrorCheck(@1, variable->getExtension())) { - context->recover(); - } - } - - // don't delete $1.string, it's used by error recovery, and the pool - // pop will reclaim the memory - - if (variable->getType().getQualifier() == EvqConst ) { - ConstantUnion* constArray = variable->getConstPointer(); - TType t(variable->getType()); - $$ = context->intermediate.addConstantUnion(constArray, t, @1); - } else - $$ = context->intermediate.addSymbol(variable->getUniqueId(), - variable->getName(), - variable->getType(), - @1); - } - ; - -primary_expression - : variable_identifier { - $$ = $1; - } - | INTCONSTANT { - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setIConst($1.i); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtInt, EbpUndefined, EvqConst), @1); - } - | FLOATCONSTANT { - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setFConst($1.f); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtFloat, EbpUndefined, EvqConst), @1); - } - | BOOLCONSTANT { - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst($1.b); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @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 identifier { - if ($1->isArray()) { - context->error(@3, "cannot apply dot operator to an array", "."); - context->recover(); - } - - if ($1->isVector()) { - TVectorFields fields; - if (! context->parseVectorFields(*$3.string, $1->getNominalSize(), fields, @3)) { - fields.num = 1; - fields.offsets[0] = 0; - context->recover(); - } - - if ($1->getType().getQualifier() == EvqConst) { // constant folding for vector fields - $$ = context->addConstVectorNode(fields, $1, @3); - if ($$ == 0) { - context->recover(); - $$ = $1; - } - else - $$->setType(TType($1->getBasicType(), $1->getPrecision(), EvqConst, (int) (*$3.string).size())); - } else { - TString vectorString = *$3.string; - TIntermTyped* index = context->intermediate.addSwizzle(fields, @3); - $$ = context->intermediate.addIndex(EOpVectorSwizzle, $1, index, @2); - $$->setType(TType($1->getBasicType(), $1->getPrecision(), EvqTemporary, (int) vectorString.size())); - } - } else if ($1->isMatrix()) { - TMatrixFields fields; - if (! context->parseMatrixFields(*$3.string, $1->getNominalSize(), fields, @3)) { - fields.wholeRow = false; - fields.wholeCol = false; - fields.row = 0; - fields.col = 0; - context->recover(); - } - - if (fields.wholeRow || fields.wholeCol) { - context->error(@2, " non-scalar fields not implemented yet", "."); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setIConst(0); - TIntermTyped* index = context->intermediate.addConstantUnion(unionArray, TType(EbtInt, EbpUndefined, EvqConst), @3); - $$ = context->intermediate.addIndex(EOpIndexDirect, $1, index, @2); - $$->setType(TType($1->getBasicType(), $1->getPrecision(),EvqTemporary, $1->getNominalSize())); - } else { - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setIConst(fields.col * $1->getNominalSize() + fields.row); - TIntermTyped* index = context->intermediate.addConstantUnion(unionArray, TType(EbtInt, EbpUndefined, EvqConst), @3); - $$ = context->intermediate.addIndex(EOpIndexDirect, $1, index, @2); - $$->setType(TType($1->getBasicType(), $1->getPrecision())); - } - } else if ($1->getBasicType() == EbtStruct) { - bool fieldFound = false; - const TFieldList& fields = $1->getType().getStruct()->fields(); - unsigned int i; - for (i = 0; i < fields.size(); ++i) { - if (fields[i]->name() == *$3.string) { - fieldFound = true; - break; - } - } - if (fieldFound) { - if ($1->getType().getQualifier() == EvqConst) { - $$ = context->addConstStruct(*$3.string, $1, @2); - if ($$ == 0) { - context->recover(); - $$ = $1; - } - else { - $$->setType(*fields[i]->type()); - // change the qualifier of the return type, not of the structure field - // as the structure definition is shared between various structures. - $$->getTypePointer()->setQualifier(EvqConst); - } - } else { - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setIConst(i); - TIntermTyped* index = context->intermediate.addConstantUnion(unionArray, *fields[i]->type(), @3); - $$ = context->intermediate.addIndex(EOpIndexDirectStruct, $1, index, @2); - $$->setType(*fields[i]->type()); - } - } else { - context->error(@2, " no such field in structure", $3.string->c_str()); - context->recover(); - $$ = $1; - } - } else { - context->error(@2, " field selection requires structure, vector, or matrix on left hand side", $3.string->c_str()); - context->recover(); - $$ = $1; - } - // don't delete $3.string, it's from the pool - } - | postfix_expression INC_OP { - if (context->lValueErrorCheck(@2, "++", $1)) - context->recover(); - $$ = context->intermediate.addUnaryMath(EOpPostIncrement, $1, @2, context->symbolTable); - if ($$ == 0) { - context->unaryOpError(@2, "++", $1->getCompleteString()); - context->recover(); - $$ = $1; - } - } - | postfix_expression DEC_OP { - if (context->lValueErrorCheck(@2, "--", $1)) - context->recover(); - $$ = context->intermediate.addUnaryMath(EOpPostDecrement, $1, @2, context->symbolTable); - if ($$ == 0) { - context->unaryOpError(@2, "--", $1->getCompleteString()); - context->recover(); - $$ = $1; - } - } - ; - -integer_expression - : expression { - if (context->integerErrorCheck($1, "[]")) - context->recover(); - $$ = $1; - } - ; - -function_call - : function_call_or_method { - TFunction* fnCall = $1.function; - TOperator op = fnCall->getBuiltInOp(); - - if (op != EOpNull) - { - // - // Then this should be a constructor. - // Don't go through the symbol table for constructors. - // Their parameters will be verified algorithmically. - // - TType type(EbtVoid, EbpUndefined); // use this to get the type back - if (context->constructorErrorCheck(@1, $1.intermNode, *fnCall, op, &type)) { - $$ = 0; - } else { - // - // It's a constructor, of type 'type'. - // - $$ = context->addConstructor($1.intermNode, &type, op, fnCall, @1); - } - - if ($$ == 0) { - context->recover(); - $$ = context->intermediate.setAggregateOperator(0, op, @1); - } - $$->setType(type); - } else { - // - // Not a constructor. Find it in the symbol table. - // - const TFunction* fnCandidate; - bool builtIn; - fnCandidate = context->findFunction(@1, fnCall, &builtIn); - if (fnCandidate) { - // - // A declared function. - // - if (builtIn && !fnCandidate->getExtension().empty() && - context->extensionErrorCheck(@1, fnCandidate->getExtension())) { - context->recover(); - } - op = fnCandidate->getBuiltInOp(); - if (builtIn && op != EOpNull) { - // - // A function call mapped to a built-in operation. - // - if (fnCandidate->getParamCount() == 1) { - // - // Treat it like a built-in unary operator. - // - $$ = context->intermediate.addUnaryMath(op, $1.intermNode, @1, context->symbolTable); - if ($$ == 0) { - std::stringstream extraInfoStream; - extraInfoStream << "built in unary operator function. Type: " << static_cast<TIntermTyped*>($1.intermNode)->getCompleteString(); - std::string extraInfo = extraInfoStream.str(); - context->error($1.intermNode->getLine(), " wrong operand type", "Internal Error", extraInfo.c_str()); - YYERROR; - } - } else { - $$ = context->intermediate.setAggregateOperator($1.intermAggregate, op, @1); - } - } else { - // This is a real function call - - $$ = context->intermediate.setAggregateOperator($1.intermAggregate, EOpFunctionCall, @1); - $$->setType(fnCandidate->getReturnType()); - - // this is how we know whether the given function is a builtIn function or a user defined function - // if builtIn == false, it's a userDefined -> could be an overloaded builtIn function also - // if builtIn == true, it's definitely a builtIn function with EOpNull - if (!builtIn) - $$->getAsAggregate()->setUserDefined(); - $$->getAsAggregate()->setName(fnCandidate->getMangledName()); - - TQualifier qual; - for (size_t i = 0; i < fnCandidate->getParamCount(); ++i) { - qual = fnCandidate->getParam(i).type->getQualifier(); - if (qual == EvqOut || qual == EvqInOut) { - if (context->lValueErrorCheck($$->getLine(), "assign", $$->getAsAggregate()->getSequence()[i]->getAsTyped())) { - context->error($1.intermNode->getLine(), "Constant value cannot be passed for 'out' or 'inout' parameters.", "Error"); - context->recover(); - } - } - } - } - $$->setType(fnCandidate->getReturnType()); - } else { - // error message was put out by PaFindFunction() - // Put on a dummy node for error recovery - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setFConst(0.0f); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtFloat, EbpUndefined, EvqConst), @1); - context->recover(); - } - } - delete fnCall; - } - ; - -function_call_or_method - : function_call_generic { - $$ = $1; - } - | postfix_expression DOT function_call_generic { - context->error(@3, "methods are not supported", ""); - context->recover(); - $$ = $3; - } - ; - -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 { - $$.function = $1; - $$.intermNode = 0; - } - | function_call_header { - $$.function = $1; - $$.intermNode = 0; - } - ; - -function_call_header_with_parameters - : function_call_header assignment_expression { - TParameter param = { 0, new TType($2->getType()) }; - $1->addParameter(param); - $$.function = $1; - $$.intermNode = $2; - } - | function_call_header_with_parameters COMMA assignment_expression { - TParameter param = { 0, new TType($3->getType()) }; - $1.function->addParameter(param); - $$.function = $1.function; - $$.intermNode = context->intermediate.growAggregate($1.intermNode, $3, @2); - } - ; - -function_call_header - : function_identifier LEFT_PAREN { - $$ = $1; - } - ; - -// Grammar Note: Constructors look like functions, but are recognized as types. - -function_identifier - : type_specifier_nonarray { - // - // Constructor - // - TOperator op = EOpNull; - if ($1.userDef) { - op = EOpConstructStruct; - } else { - switch ($1.type) { - case EbtFloat: - if ($1.matrix) { - switch($1.size) { - case 2: op = EOpConstructMat2; break; - case 3: op = EOpConstructMat3; break; - case 4: op = EOpConstructMat4; break; - } - } else { - switch($1.size) { - case 1: op = EOpConstructFloat; break; - case 2: op = EOpConstructVec2; break; - case 3: op = EOpConstructVec3; break; - case 4: op = EOpConstructVec4; break; - } - } - break; - case EbtInt: - switch($1.size) { - case 1: op = EOpConstructInt; break; - case 2: op = EOpConstructIVec2; break; - case 3: op = EOpConstructIVec3; break; - case 4: op = EOpConstructIVec4; break; - } - break; - case EbtBool: - switch($1.size) { - case 1: op = EOpConstructBool; break; - case 2: op = EOpConstructBVec2; break; - case 3: op = EOpConstructBVec3; break; - case 4: op = EOpConstructBVec4; break; - } - break; - default: break; - } - if (op == EOpNull) { - context->error(@1, "cannot construct this type", getBasicString($1.type)); - context->recover(); - $1.type = EbtFloat; - op = EOpConstructFloat; - } - } - TString tempString; - TType type($1); - TFunction *function = new TFunction(&tempString, type, op); - $$ = function; - } - | IDENTIFIER { - if (context->reservedErrorCheck(@1, *$1.string)) - context->recover(); - TType type(EbtVoid, EbpUndefined); - TFunction *function = new TFunction($1.string, type); - $$ = function; - } - ; - -unary_expression - : postfix_expression { - $$ = $1; - } - | INC_OP unary_expression { - if (context->lValueErrorCheck(@1, "++", $2)) - context->recover(); - $$ = context->intermediate.addUnaryMath(EOpPreIncrement, $2, @1, context->symbolTable); - if ($$ == 0) { - context->unaryOpError(@1, "++", $2->getCompleteString()); - context->recover(); - $$ = $2; - } - } - | DEC_OP unary_expression { - if (context->lValueErrorCheck(@1, "--", $2)) - context->recover(); - $$ = context->intermediate.addUnaryMath(EOpPreDecrement, $2, @1, context->symbolTable); - if ($$ == 0) { - context->unaryOpError(@1, "--", $2->getCompleteString()); - context->recover(); - $$ = $2; - } - } - | unary_operator unary_expression { - if ($1.op != EOpNull) { - $$ = context->intermediate.addUnaryMath($1.op, $2, @1, context->symbolTable); - if ($$ == 0) { - const char* errorOp = ""; - switch($1.op) { - case EOpNegative: errorOp = "-"; break; - case EOpLogicalNot: errorOp = "!"; break; - default: break; - } - context->unaryOpError(@1, errorOp, $2->getCompleteString()); - context->recover(); - $$ = $2; - } - } else - $$ = $2; - } - ; -// Grammar Note: No traditional style type casts. - -unary_operator - : PLUS { $$.op = EOpNull; } - | DASH { $$.op = EOpNegative; } - | BANG { $$.op = EOpLogicalNot; } - ; -// Grammar Note: No '*' or '&' unary ops. Pointers are not supported. - -multiplicative_expression - : unary_expression { $$ = $1; } - | multiplicative_expression STAR unary_expression { - $$ = context->intermediate.addBinaryMath(EOpMul, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "*", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $1; - } - } - | multiplicative_expression SLASH unary_expression { - $$ = context->intermediate.addBinaryMath(EOpDiv, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "/", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $1; - } - } - ; - -additive_expression - : multiplicative_expression { $$ = $1; } - | additive_expression PLUS multiplicative_expression { - $$ = context->intermediate.addBinaryMath(EOpAdd, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "+", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $1; - } - } - | additive_expression DASH multiplicative_expression { - $$ = context->intermediate.addBinaryMath(EOpSub, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "-", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $1; - } - } - ; - -shift_expression - : additive_expression { $$ = $1; } - ; - -relational_expression - : shift_expression { $$ = $1; } - | relational_expression LEFT_ANGLE shift_expression { - $$ = context->intermediate.addBinaryMath(EOpLessThan, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "<", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - | relational_expression RIGHT_ANGLE shift_expression { - $$ = context->intermediate.addBinaryMath(EOpGreaterThan, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, ">", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - | relational_expression LE_OP shift_expression { - $$ = context->intermediate.addBinaryMath(EOpLessThanEqual, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "<=", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - | relational_expression GE_OP shift_expression { - $$ = context->intermediate.addBinaryMath(EOpGreaterThanEqual, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, ">=", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - ; - -equality_expression - : relational_expression { $$ = $1; } - | equality_expression EQ_OP relational_expression { - $$ = context->intermediate.addBinaryMath(EOpEqual, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "==", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - | equality_expression NE_OP relational_expression { - $$ = context->intermediate.addBinaryMath(EOpNotEqual, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "!=", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - ; - -and_expression - : equality_expression { $$ = $1; } - ; - -exclusive_or_expression - : and_expression { $$ = $1; } - ; - -inclusive_or_expression - : exclusive_or_expression { $$ = $1; } - ; - -logical_and_expression - : inclusive_or_expression { $$ = $1; } - | logical_and_expression AND_OP inclusive_or_expression { - $$ = context->intermediate.addBinaryMath(EOpLogicalAnd, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "&&", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - ; - -logical_xor_expression - : logical_and_expression { $$ = $1; } - | logical_xor_expression XOR_OP logical_and_expression { - $$ = context->intermediate.addBinaryMath(EOpLogicalXor, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "^^", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - ; - -logical_or_expression - : logical_xor_expression { $$ = $1; } - | logical_or_expression OR_OP logical_xor_expression { - $$ = context->intermediate.addBinaryMath(EOpLogicalOr, $1, $3, @2, context->symbolTable); - if ($$ == 0) { - context->binaryOpError(@2, "||", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - ConstantUnion *unionArray = new ConstantUnion[1]; - unionArray->setBConst(false); - $$ = context->intermediate.addConstantUnion(unionArray, TType(EbtBool, EbpUndefined, EvqConst), @2); - } - } - ; - -conditional_expression - : logical_or_expression { $$ = $1; } - | logical_or_expression QUESTION expression COLON assignment_expression { - if (context->boolErrorCheck(@2, $1)) - context->recover(); - - $$ = context->intermediate.addSelection($1, $3, $5, @2); - if ($3->getType() != $5->getType()) - $$ = 0; - - if ($$ == 0) { - context->binaryOpError(@2, ":", $3->getCompleteString(), $5->getCompleteString()); - context->recover(); - $$ = $5; - } - } - ; - -assignment_expression - : conditional_expression { $$ = $1; } - | unary_expression assignment_operator assignment_expression { - if (context->lValueErrorCheck(@2, "assign", $1)) - context->recover(); - $$ = context->intermediate.addAssign($2.op, $1, $3, @2); - if ($$ == 0) { - context->assignError(@2, "assign", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $1; - } - } - ; - -assignment_operator - : EQUAL { $$.op = EOpAssign; } - | MUL_ASSIGN { $$.op = EOpMulAssign; } - | DIV_ASSIGN { $$.op = EOpDivAssign; } - | ADD_ASSIGN { $$.op = EOpAddAssign; } - | SUB_ASSIGN { $$.op = EOpSubAssign; } - ; - -expression - : assignment_expression { - $$ = $1; - } - | expression COMMA assignment_expression { - $$ = context->intermediate.addComma($1, $3, @2); - if ($$ == 0) { - context->binaryOpError(@2, ",", $1->getCompleteString(), $3->getCompleteString()); - context->recover(); - $$ = $3; - } - } - ; - -constant_expression - : conditional_expression { - if (context->constErrorCheck($1)) - context->recover(); - $$ = $1; - } - ; - -declaration - : function_prototype SEMICOLON { - TFunction &function = *($1.function); - - TIntermAggregate *prototype = new TIntermAggregate; - prototype->setType(function.getReturnType()); - prototype->setName(function.getName()); - - for (size_t i = 0; i < function.getParamCount(); i++) - { - const TParameter ¶m = function.getParam(i); - if (param.name != 0) - { - TVariable variable(param.name, *param.type); - - prototype = context->intermediate.growAggregate(prototype, context->intermediate.addSymbol(variable.getUniqueId(), variable.getName(), variable.getType(), @1), @1); - } - else - { - prototype = context->intermediate.growAggregate(prototype, context->intermediate.addSymbol(0, "", *param.type, @1), @1); - } - } - - prototype->setOp(EOpPrototype); - $$ = prototype; - - context->symbolTable.pop(); - } - | init_declarator_list SEMICOLON { - if ($1.intermAggregate) - $1.intermAggregate->setOp(EOpDeclaration); - $$ = $1.intermAggregate; - } - | PRECISION precision_qualifier type_specifier_no_prec SEMICOLON { - if (($2 == EbpHigh) && (context->shaderType == SH_FRAGMENT_SHADER) && !context->fragmentPrecisionHigh) { - context->error(@1, "precision is not supported in fragment shader", "highp"); - context->recover(); - } - if (!context->symbolTable.setDefaultPrecision( $3, $2 )) { - context->error(@1, "illegal type argument for default precision qualifier", getBasicString($3.type)); - context->recover(); - } - $$ = 0; - } - ; - -function_prototype - : function_declarator RIGHT_PAREN { - // - // Multiple declarations of the same function are allowed. - // - // If this is a definition, the definition production code will check for redefinitions - // (we don't know at this point if it's a definition or not). - // - // Redeclarations are allowed. But, return types and parameter qualifiers must match. - // - TFunction* prevDec = static_cast<TFunction*>(context->symbolTable.find($1->getMangledName())); - if (prevDec) { - if (prevDec->getReturnType() != $1->getReturnType()) { - context->error(@2, "overloaded functions must have the same return type", $1->getReturnType().getBasicString()); - context->recover(); - } - for (size_t i = 0; i < prevDec->getParamCount(); ++i) { - if (prevDec->getParam(i).type->getQualifier() != $1->getParam(i).type->getQualifier()) { - context->error(@2, "overloaded functions must have the same parameter qualifiers", $1->getParam(i).type->getQualifierString()); - context->recover(); - } - } - } - - // - // Check for previously declared variables using the same name. - // - TSymbol *prevSym = context->symbolTable.find($1->getName()); - if (prevSym) - { - if (!prevSym->isFunction()) - { - context->error(@2, "redefinition", $1->getName().c_str(), "function"); - context->recover(); - } - } - else - { - // Insert the unmangled name to detect potential future redefinition as a variable. - context->symbolTable.getOuterLevel()->insert($1->getName(), *$1); - } - - // - // If this is a redeclaration, it could also be a definition, - // in which case, we want to use the variable names from this one, and not the one that's - // being redeclared. So, pass back up this declaration, not the one in the symbol table. - // - $$.function = $1; - - // We're at the inner scope level of the function's arguments and body statement. - // Add the function prototype to the surrounding scope instead. - context->symbolTable.getOuterLevel()->insert(*$$.function); - } - ; - -function_declarator - : function_header { - $$ = $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 - // - context->error(@2, "cannot be an argument type except for '(void)'", "void"); - context->recover(); - delete $3.param.type; - } else { - // Add the parameter - $$ = $1; - $1->addParameter($3.param); - } - } - ; - -function_header - : fully_specified_type IDENTIFIER LEFT_PAREN { - if ($1.qualifier != EvqGlobal && $1.qualifier != EvqTemporary) { - context->error(@2, "no qualifiers allowed for function return", getQualifierString($1.qualifier)); - context->recover(); - } - // make sure a sampler is not involved as well... - if (context->structQualifierErrorCheck(@2, $1)) - context->recover(); - - // Add the function as a prototype after parsing it (we do not support recursion) - TFunction *function; - TType type($1); - function = new TFunction($2.string, type); - $$ = function; - - context->symbolTable.push(); - } - ; - -parameter_declarator - // Type + name - : type_specifier identifier { - if ($1.type == EbtVoid) { - context->error(@2, "illegal use of type 'void'", $2.string->c_str()); - context->recover(); - } - if (context->reservedErrorCheck(@2, *$2.string)) - context->recover(); - TParameter param = {$2.string, new TType($1)}; - $$.param = param; - } - | type_specifier identifier LEFT_BRACKET constant_expression RIGHT_BRACKET { - // Check that we can make an array out of this type - if (context->arrayTypeErrorCheck(@3, $1)) - context->recover(); - - if (context->reservedErrorCheck(@2, *$2.string)) - context->recover(); - - int size; - if (context->arraySizeErrorCheck(@3, $4, size)) - context->recover(); - $1.setArray(true, size); - - TType* type = new TType($1); - TParameter param = { $2.string, type }; - $$.param = param; - } - ; - -parameter_declaration - // - // The only parameter qualifier a parameter can have are - // IN_QUAL, OUT_QUAL, INOUT_QUAL, or CONST. - // - - // - // Type + name - // - : type_qualifier parameter_qualifier parameter_declarator { - $$ = $3; - if (context->paramErrorCheck(@3, $1.qualifier, $2, $$.param.type)) - context->recover(); - } - | parameter_qualifier parameter_declarator { - $$ = $2; - if (context->parameterSamplerErrorCheck(@2, $1, *$2.param.type)) - context->recover(); - if (context->paramErrorCheck(@2, EvqTemporary, $1, $$.param.type)) - context->recover(); - } - // - // Only type - // - | type_qualifier parameter_qualifier parameter_type_specifier { - $$ = $3; - if (context->paramErrorCheck(@3, $1.qualifier, $2, $$.param.type)) - context->recover(); - } - | parameter_qualifier parameter_type_specifier { - $$ = $2; - if (context->parameterSamplerErrorCheck(@2, $1, *$2.param.type)) - context->recover(); - if (context->paramErrorCheck(@2, EvqTemporary, $1, $$.param.type)) - context->recover(); - } - ; - -parameter_qualifier - : /* empty */ { - $$ = EvqIn; - } - | IN_QUAL { - $$ = EvqIn; - } - | OUT_QUAL { - $$ = EvqOut; - } - | INOUT_QUAL { - $$ = EvqInOut; - } - ; - -parameter_type_specifier - : type_specifier { - TParameter param = { 0, new TType($1) }; - $$.param = param; - } - ; - -init_declarator_list - : single_declaration { - $$ = $1; - } - | init_declarator_list COMMA identifier { - if ($1.type.type == EbtInvariant && !$3.symbol) - { - context->error(@3, "undeclared identifier declared as invariant", $3.string->c_str()); - context->recover(); - } - - TIntermSymbol* symbol = context->intermediate.addSymbol(0, *$3.string, TType($1.type), @3); - $$.intermAggregate = context->intermediate.growAggregate($1.intermNode, symbol, @3); - - if (context->structQualifierErrorCheck(@3, $$.type)) - context->recover(); - - if (context->nonInitConstErrorCheck(@3, *$3.string, $$.type, false)) - context->recover(); - - TVariable* variable = 0; - if (context->nonInitErrorCheck(@3, *$3.string, $$.type, variable)) - context->recover(); - if (symbol && variable) - symbol->setId(variable->getUniqueId()); - } - | init_declarator_list COMMA identifier LEFT_BRACKET RIGHT_BRACKET { - if (context->structQualifierErrorCheck(@3, $1.type)) - context->recover(); - - if (context->nonInitConstErrorCheck(@3, *$3.string, $1.type, true)) - context->recover(); - - $$ = $1; - - if (context->arrayTypeErrorCheck(@4, $1.type) || context->arrayQualifierErrorCheck(@4, $1.type)) - context->recover(); - else { - $1.type.setArray(true); - TVariable* variable; - if (context->arrayErrorCheck(@4, *$3.string, $1.type, variable)) - context->recover(); - } - } - | init_declarator_list COMMA identifier LEFT_BRACKET constant_expression RIGHT_BRACKET { - if (context->structQualifierErrorCheck(@3, $1.type)) - context->recover(); - - if (context->nonInitConstErrorCheck(@3, *$3.string, $1.type, true)) - context->recover(); - - $$ = $1; - - if (context->arrayTypeErrorCheck(@4, $1.type) || context->arrayQualifierErrorCheck(@4, $1.type)) - context->recover(); - else { - int size; - if (context->arraySizeErrorCheck(@4, $5, size)) - context->recover(); - $1.type.setArray(true, size); - TVariable* variable = 0; - if (context->arrayErrorCheck(@4, *$3.string, $1.type, variable)) - context->recover(); - TType type = TType($1.type); - type.setArraySize(size); - $$.intermAggregate = context->intermediate.growAggregate($1.intermNode, context->intermediate.addSymbol(variable ? variable->getUniqueId() : 0, *$3.string, type, @3), @3); - } - } - | init_declarator_list COMMA identifier EQUAL initializer { - if (context->structQualifierErrorCheck(@3, $1.type)) - context->recover(); - - $$ = $1; - - TIntermNode* intermNode; - if (!context->executeInitializer(@3, *$3.string, $1.type, $5, intermNode)) { - // - // build the intermediate representation - // - if (intermNode) - $$.intermAggregate = context->intermediate.growAggregate($1.intermNode, intermNode, @4); - else - $$.intermAggregate = $1.intermAggregate; - } else { - context->recover(); - $$.intermAggregate = 0; - } - } - ; - -single_declaration - : fully_specified_type { - $$.type = $1; - $$.intermAggregate = context->intermediate.makeAggregate(context->intermediate.addSymbol(0, "", TType($1), @1), @1); - } - | fully_specified_type identifier { - TIntermSymbol* symbol = context->intermediate.addSymbol(0, *$2.string, TType($1), @2); - $$.intermAggregate = context->intermediate.makeAggregate(symbol, @2); - - if (context->structQualifierErrorCheck(@2, $$.type)) - context->recover(); - - if (context->nonInitConstErrorCheck(@2, *$2.string, $$.type, false)) - context->recover(); - - $$.type = $1; - - TVariable* variable = 0; - if (context->nonInitErrorCheck(@2, *$2.string, $$.type, variable)) - context->recover(); - if (variable && symbol) - symbol->setId(variable->getUniqueId()); - } - | fully_specified_type identifier LEFT_BRACKET RIGHT_BRACKET { - context->error(@2, "unsized array declarations not supported", $2.string->c_str()); - context->recover(); - - TIntermSymbol* symbol = context->intermediate.addSymbol(0, *$2.string, TType($1), @2); - $$.intermAggregate = context->intermediate.makeAggregate(symbol, @2); - $$.type = $1; - } - | fully_specified_type identifier LEFT_BRACKET constant_expression RIGHT_BRACKET { - TType type = TType($1); - int size; - if (context->arraySizeErrorCheck(@2, $4, size)) - context->recover(); - type.setArraySize(size); - TIntermSymbol* symbol = context->intermediate.addSymbol(0, *$2.string, type, @2); - $$.intermAggregate = context->intermediate.makeAggregate(symbol, @2); - - if (context->structQualifierErrorCheck(@2, $1)) - context->recover(); - - if (context->nonInitConstErrorCheck(@2, *$2.string, $1, true)) - context->recover(); - - $$.type = $1; - - if (context->arrayTypeErrorCheck(@3, $1) || context->arrayQualifierErrorCheck(@3, $1)) - context->recover(); - else { - int size; - if (context->arraySizeErrorCheck(@3, $4, size)) - context->recover(); - - $1.setArray(true, size); - TVariable* variable = 0; - if (context->arrayErrorCheck(@3, *$2.string, $1, variable)) - context->recover(); - if (variable && symbol) - symbol->setId(variable->getUniqueId()); - } - } - | fully_specified_type identifier EQUAL initializer { - if (context->structQualifierErrorCheck(@2, $1)) - context->recover(); - - $$.type = $1; - - TIntermNode* intermNode; - if (!context->executeInitializer(@2, *$2.string, $1, $4, intermNode)) { - // - // Build intermediate representation - // - if(intermNode) - $$.intermAggregate = context->intermediate.makeAggregate(intermNode, @3); - else - $$.intermAggregate = 0; - } else { - context->recover(); - $$.intermAggregate = 0; - } - } - | INVARIANT IDENTIFIER { - VERTEX_ONLY("invariant declaration", @1); - if (context->globalErrorCheck(@1, context->symbolTable.atGlobalLevel(), "invariant varying")) - context->recover(); - $$.type.setBasic(EbtInvariant, EvqInvariantVaryingOut, @2); - if (!$2.symbol) - { - context->error(@2, "undeclared identifier declared as invariant", $2.string->c_str()); - context->recover(); - - $$.intermAggregate = 0; - } - else - { - TIntermSymbol *symbol = context->intermediate.addSymbol(0, *$2.string, TType($$.type), @2); - $$.intermAggregate = context->intermediate.makeAggregate(symbol, @2); - } - } - ; - -fully_specified_type - : type_specifier { - $$ = $1; - - if ($1.array) { - context->error(@1, "not supported", "first-class array"); - context->recover(); - $1.setArray(false); - } - } - | type_qualifier type_specifier { - if ($2.array) { - context->error(@2, "not supported", "first-class array"); - context->recover(); - $2.setArray(false); - } - - if ($1.qualifier == EvqAttribute && - ($2.type == EbtBool || $2.type == EbtInt)) { - context->error(@2, "cannot be bool or int", getQualifierString($1.qualifier)); - context->recover(); - } - if (($1.qualifier == EvqVaryingIn || $1.qualifier == EvqVaryingOut) && - ($2.type == EbtBool || $2.type == EbtInt)) { - context->error(@2, "cannot be bool or int", getQualifierString($1.qualifier)); - context->recover(); - } - $$ = $2; - $$.qualifier = $1.qualifier; - } - ; - -type_qualifier - : CONST_QUAL { - $$.setBasic(EbtVoid, EvqConst, @1); - } - | ATTRIBUTE { - VERTEX_ONLY("attribute", @1); - if (context->globalErrorCheck(@1, context->symbolTable.atGlobalLevel(), "attribute")) - context->recover(); - $$.setBasic(EbtVoid, EvqAttribute, @1); - } - | VARYING { - if (context->globalErrorCheck(@1, context->symbolTable.atGlobalLevel(), "varying")) - context->recover(); - if (context->shaderType == SH_VERTEX_SHADER) - $$.setBasic(EbtVoid, EvqVaryingOut, @1); - else - $$.setBasic(EbtVoid, EvqVaryingIn, @1); - } - | INVARIANT VARYING { - if (context->globalErrorCheck(@1, context->symbolTable.atGlobalLevel(), "invariant varying")) - context->recover(); - if (context->shaderType == SH_VERTEX_SHADER) - $$.setBasic(EbtVoid, EvqInvariantVaryingOut, @1); - else - $$.setBasic(EbtVoid, EvqInvariantVaryingIn, @1); - } - | UNIFORM { - if (context->globalErrorCheck(@1, context->symbolTable.atGlobalLevel(), "uniform")) - context->recover(); - $$.setBasic(EbtVoid, EvqUniform, @1); - } - ; - -type_specifier - : type_specifier_no_prec { - $$ = $1; - - if ($$.precision == EbpUndefined) { - $$.precision = context->symbolTable.getDefaultPrecision($1.type); - if (context->precisionErrorCheck(@1, $$.precision, $1.type)) { - context->recover(); - } - } - } - | precision_qualifier type_specifier_no_prec { - $$ = $2; - $$.precision = $1; - } - ; - -precision_qualifier - : HIGH_PRECISION { - $$ = EbpHigh; - } - | MEDIUM_PRECISION { - $$ = EbpMedium; - } - | LOW_PRECISION { - $$ = EbpLow; - } - ; - -type_specifier_no_prec - : type_specifier_nonarray { - $$ = $1; - } - | type_specifier_nonarray LEFT_BRACKET constant_expression RIGHT_BRACKET { - $$ = $1; - - if (context->arrayTypeErrorCheck(@2, $1)) - context->recover(); - else { - int size; - if (context->arraySizeErrorCheck(@2, $3, size)) - context->recover(); - $$.setArray(true, size); - } - } - ; - -type_specifier_nonarray - : VOID_TYPE { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtVoid, qual, @1); - } - | FLOAT_TYPE { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - } - | INT_TYPE { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtInt, qual, @1); - } - | BOOL_TYPE { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtBool, qual, @1); - } - | VEC2 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(2); - } - | VEC3 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(3); - } - | VEC4 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(4); - } - | BVEC2 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtBool, qual, @1); - $$.setAggregate(2); - } - | BVEC3 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtBool, qual, @1); - $$.setAggregate(3); - } - | BVEC4 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtBool, qual, @1); - $$.setAggregate(4); - } - | IVEC2 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtInt, qual, @1); - $$.setAggregate(2); - } - | IVEC3 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtInt, qual, @1); - $$.setAggregate(3); - } - | IVEC4 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtInt, qual, @1); - $$.setAggregate(4); - } - | MATRIX2 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(2, true); - } - | MATRIX3 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(3, true); - } - | MATRIX4 { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtFloat, qual, @1); - $$.setAggregate(4, true); - } - | SAMPLER2D { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtSampler2D, qual, @1); - } - | SAMPLERCUBE { - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtSamplerCube, qual, @1); - } - | SAMPLER_EXTERNAL_OES { - if (!context->supportsExtension("GL_OES_EGL_image_external")) { - context->error(@1, "unsupported type", "samplerExternalOES"); - context->recover(); - } - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtSamplerExternalOES, qual, @1); - } - | SAMPLER2DRECT { - if (!context->supportsExtension("GL_ARB_texture_rectangle")) { - context->error(@1, "unsupported type", "sampler2DRect"); - context->recover(); - } - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtSampler2DRect, qual, @1); - } - | struct_specifier { - $$ = $1; - $$.qualifier = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - } - | TYPE_NAME { - // - // This is for user defined type names. The lexical phase looked up the - // type. - // - TType& structure = static_cast<TVariable*>($1.symbol)->getType(); - TQualifier qual = context->symbolTable.atGlobalLevel() ? EvqGlobal : EvqTemporary; - $$.setBasic(EbtStruct, qual, @1); - $$.userDef = &structure; - } - ; - -struct_specifier - : STRUCT identifier LEFT_BRACE { if (context->enterStructDeclaration(@2, *$2.string)) context->recover(); } struct_declaration_list RIGHT_BRACE { - if (context->reservedErrorCheck(@2, *$2.string)) - context->recover(); - - TType* structure = new TType(new TStructure($2.string, $5)); - TVariable* userTypeDef = new TVariable($2.string, *structure, true); - if (! context->symbolTable.insert(*userTypeDef)) { - context->error(@2, "redefinition", $2.string->c_str(), "struct"); - context->recover(); - } - $$.setBasic(EbtStruct, EvqTemporary, @1); - $$.userDef = structure; - context->exitStructDeclaration(); - } - | STRUCT LEFT_BRACE { if (context->enterStructDeclaration(@2, *$2.string)) context->recover(); } struct_declaration_list RIGHT_BRACE { - TType* structure = new TType(new TStructure(NewPoolTString(""), $4)); - $$.setBasic(EbtStruct, EvqTemporary, @1); - $$.userDef = structure; - context->exitStructDeclaration(); - } - ; - -struct_declaration_list - : struct_declaration { - $$ = $1; - } - | struct_declaration_list struct_declaration { - $$ = $1; - for (size_t i = 0; i < $2->size(); ++i) { - TField* field = (*$2)[i]; - for (size_t j = 0; j < $$->size(); ++j) { - if ((*$$)[j]->name() == field->name()) { - context->error(@2, "duplicate field name in structure:", "struct", field->name().c_str()); - context->recover(); - } - } - $$->push_back(field); - } - } - ; - -struct_declaration - : type_specifier struct_declarator_list SEMICOLON { - $$ = $2; - - if (context->voidErrorCheck(@1, (*$2)[0]->name(), $1)) { - context->recover(); - } - for (unsigned int i = 0; i < $$->size(); ++i) { - // - // Careful not to replace already known aspects of type, like array-ness - // - TType* type = (*$$)[i]->type(); - type->setBasicType($1.type); - type->setNominalSize($1.size); - type->setMatrix($1.matrix); - type->setPrecision($1.precision); - - // don't allow arrays of arrays - if (type->isArray()) { - if (context->arrayTypeErrorCheck(@1, $1)) - context->recover(); - } - if ($1.array) - type->setArraySize($1.arraySize); - if ($1.userDef) - type->setStruct($1.userDef->getStruct()); - - if (context->structNestingErrorCheck(@1, *(*$$)[i])) - context->recover(); - } - } - ; - -struct_declarator_list - : struct_declarator { - $$ = NewPoolTFieldList(); - $$->push_back($1); - } - | struct_declarator_list COMMA struct_declarator { - $$->push_back($3); - } - ; - -struct_declarator - : identifier { - if (context->reservedErrorCheck(@1, *$1.string)) - context->recover(); - - TType* type = new TType(EbtVoid, EbpUndefined); - $$ = new TField(type, $1.string); - } - | identifier LEFT_BRACKET constant_expression RIGHT_BRACKET { - if (context->reservedErrorCheck(@1, *$1.string)) - context->recover(); - - TType* type = new TType(EbtVoid, EbpUndefined); - int size = 0; - if (context->arraySizeErrorCheck(@3, $3, size)) - context->recover(); - type->setArraySize(size); - - $$ = new TField(type, $1.string); - } - ; - -initializer - : assignment_expression { $$ = $1; } - ; - -declaration_statement - : declaration { $$ = $1; } - ; - -statement - : compound_statement { $$ = $1; } - | simple_statement { $$ = $1; } - ; - -// Grammar Note: No labeled statements; 'goto' is not supported. - -simple_statement - : declaration_statement { $$ = $1; } - | expression_statement { $$ = $1; } - | selection_statement { $$ = $1; } - | iteration_statement { $$ = $1; } - | jump_statement { $$ = $1; } - ; - -compound_statement - : LEFT_BRACE RIGHT_BRACE { $$ = 0; } - | LEFT_BRACE { context->symbolTable.push(); } statement_list { context->symbolTable.pop(); } RIGHT_BRACE { - if ($3 != 0) { - $3->setOp(EOpSequence); - $3->setLine(@$); - } - $$ = $3; - } - ; - -statement_no_new_scope - : compound_statement_no_new_scope { $$ = $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(); $$ = $2; } - ; - -compound_statement_no_new_scope - // Statement that doesn't create a new scope, for selection_statement, iteration_statement - : LEFT_BRACE RIGHT_BRACE { - $$ = 0; - } - | LEFT_BRACE statement_list RIGHT_BRACE { - if ($2) { - $2->setOp(EOpSequence); - $2->setLine(@$); - } - $$ = $2; - } - ; - -statement_list - : statement { - $$ = context->intermediate.makeAggregate($1, @$); - } - | statement_list statement { - $$ = context->intermediate.growAggregate($1, $2, @$); - } - ; - -expression_statement - : SEMICOLON { $$ = 0; } - | expression SEMICOLON { $$ = static_cast<TIntermNode*>($1); } - ; - -selection_statement - : IF LEFT_PAREN expression RIGHT_PAREN selection_rest_statement { - if (context->boolErrorCheck(@1, $3)) - context->recover(); - $$ = context->intermediate.addSelection($3, $5, @1); - } - ; - -selection_rest_statement - : statement_with_scope ELSE statement_with_scope { - $$.node1 = $1; - $$.node2 = $3; - } - | statement_with_scope { - $$.node1 = $1; - $$.node2 = 0; - } - ; - -// Grammar Note: No 'switch'. Switch statements not supported. - -condition - // In 1996 c++ draft, conditions can include single declarations - : expression { - $$ = $1; - if (context->boolErrorCheck($1->getLine(), $1)) - context->recover(); - } - | fully_specified_type identifier EQUAL initializer { - TIntermNode* intermNode; - if (context->structQualifierErrorCheck(@2, $1)) - context->recover(); - if (context->boolErrorCheck(@2, $1)) - context->recover(); - - if (!context->executeInitializer(@2, *$2.string, $1, $4, intermNode)) - $$ = $4; - else { - context->recover(); - $$ = 0; - } - } - ; - -iteration_statement - : WHILE LEFT_PAREN { context->symbolTable.push(); ++context->loopNestingLevel; } condition RIGHT_PAREN statement_no_new_scope { - context->symbolTable.pop(); - $$ = context->intermediate.addLoop(ELoopWhile, 0, $4, 0, $6, @1); - --context->loopNestingLevel; - } - | DO { ++context->loopNestingLevel; } statement_with_scope WHILE LEFT_PAREN expression RIGHT_PAREN SEMICOLON { - if (context->boolErrorCheck(@8, $6)) - context->recover(); - - $$ = context->intermediate.addLoop(ELoopDoWhile, 0, $6, 0, $3, @4); - --context->loopNestingLevel; - } - | FOR LEFT_PAREN { context->symbolTable.push(); ++context->loopNestingLevel; } for_init_statement for_rest_statement RIGHT_PAREN statement_no_new_scope { - context->symbolTable.pop(); - $$ = context->intermediate.addLoop(ELoopFor, $4, reinterpret_cast<TIntermTyped*>($5.node1), reinterpret_cast<TIntermTyped*>($5.node2), $7, @1); - --context->loopNestingLevel; - } - ; - -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 (context->loopNestingLevel <= 0) { - context->error(@1, "continue statement only allowed in loops", ""); - context->recover(); - } - $$ = context->intermediate.addBranch(EOpContinue, @1); - } - | BREAK SEMICOLON { - if (context->loopNestingLevel <= 0) { - context->error(@1, "break statement only allowed in loops", ""); - context->recover(); - } - $$ = context->intermediate.addBranch(EOpBreak, @1); - } - | RETURN SEMICOLON { - $$ = context->intermediate.addBranch(EOpReturn, @1); - if (context->currentFunctionType->getBasicType() != EbtVoid) { - context->error(@1, "non-void function must return a value", "return"); - context->recover(); - } - } - | RETURN expression SEMICOLON { - $$ = context->intermediate.addBranch(EOpReturn, $2, @1); - context->functionReturnsValue = true; - if (context->currentFunctionType->getBasicType() == EbtVoid) { - context->error(@1, "void function cannot return a value", "return"); - context->recover(); - } else if (*(context->currentFunctionType) != $2->getType()) { - context->error(@1, "function return is not matching type:", "return"); - context->recover(); - } - } - | DISCARD SEMICOLON { - FRAG_ONLY("discard", @1); - $$ = context->intermediate.addBranch(EOpKill, @1); - } - ; - -// Grammar Note: No 'goto'. Gotos are not supported. - -translation_unit - : external_declaration { - $$ = $1; - context->treeRoot = $$; - } - | translation_unit external_declaration { - $$ = context->intermediate.growAggregate($1, $2, @$); - context->treeRoot = $$; - } - ; - -external_declaration - : function_definition { - $$ = $1; - } - | declaration { - $$ = $1; - } - ; - -function_definition - : function_prototype { - TFunction* function = $1.function; - - const TSymbol *builtIn = context->symbolTable.findBuiltIn(function->getMangledName()); - - if (builtIn) - { - context->error(@1, "built-in functions cannot be redefined", function->getName().c_str()); - context->recover(); - } - - TFunction* prevDec = static_cast<TFunction*>(context->symbolTable.find(function->getMangledName())); - // - // Note: 'prevDec' could be 'function' if this is the first time we've seen function - // as it would have just been put in the symbol table. Otherwise, we're looking up - // an earlier occurance. - // - if (prevDec->isDefined()) { - // - // Then this function already has a body. - // - context->error(@1, "function already has a body", function->getName().c_str()); - context->recover(); - } - prevDec->setDefined(); - - // - // Raise error message if main function takes any parameters or return anything other than void - // - if (function->getName() == "main") { - if (function->getParamCount() > 0) { - context->error(@1, "function cannot take any parameter(s)", function->getName().c_str()); - context->recover(); - } - if (function->getReturnType().getBasicType() != EbtVoid) { - context->error(@1, "", function->getReturnType().getBasicString(), "main function cannot return a value"); - context->recover(); - } - } - - // - // Remember the return type for later checking for RETURN statements. - // - context->currentFunctionType = &(prevDec->getReturnType()); - context->functionReturnsValue = false; - - // - // Insert parameters into the symbol table. - // If the parameter has no name, it's not an error, just don't insert it - // (could be used for unused args). - // - // Also, accumulate the list of parameters into the HIL, so lower level code - // knows where to find parameters. - // - TIntermAggregate* paramNodes = new TIntermAggregate; - for (size_t i = 0; i < function->getParamCount(); i++) { - const TParameter& param = function->getParam(i); - if (param.name != 0) { - TVariable *variable = new TVariable(param.name, *param.type); - // - // Insert the parameters with name in the symbol table. - // - if (! context->symbolTable.insert(*variable)) { - context->error(@1, "redefinition", variable->getName().c_str()); - context->recover(); - delete variable; - } - - // - // Add the parameter to the HIL - // - paramNodes = context->intermediate.growAggregate( - paramNodes, - context->intermediate.addSymbol(variable->getUniqueId(), - variable->getName(), - variable->getType(), - @1), - @1); - } else { - paramNodes = context->intermediate.growAggregate(paramNodes, context->intermediate.addSymbol(0, "", *param.type, @1), @1); - } - } - context->intermediate.setAggregateOperator(paramNodes, EOpParameters, @1); - $1.intermAggregate = paramNodes; - context->loopNestingLevel = 0; - } - compound_statement_no_new_scope { - //?? Check that all paths return a value if return type != void ? - // May be best done as post process phase on intermediate code - if (context->currentFunctionType->getBasicType() != EbtVoid && ! context->functionReturnsValue) { - context->error(@1, "function does not return a value:", "", $1.function->getName().c_str()); - context->recover(); - } - - $$ = context->intermediate.growAggregate($1.intermAggregate, $3, @$); - context->intermediate.setAggregateOperator($$, EOpFunction, @1); - $$->getAsAggregate()->setName($1.function->getMangledName().c_str()); - $$->getAsAggregate()->setType($1.function->getReturnType()); - - // store the pragma information for debug and optimize and other vendor specific - // information. This information can be queried from the parse tree - $$->getAsAggregate()->setOptimize(context->pragma().optimize); - $$->getAsAggregate()->setDebug(context->pragma().debug); - - context->symbolTable.pop(); - } - ; - -%% - -int glslang_parse(TParseContext* context) { - return yyparse(context); -} |