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#line 210 "./glsl.g"
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0 WITH Qt-GPL-exception-1.0
#pragma once
#include "glslparsertable_p.h"
#include "glsllexer.h"
#include "glslast.h"
#include "glslengine.h"
#include <vector>
#include <stack>
namespace GLSL {
class GLSL_EXPORT Parser: public GLSLParserTable
{
public:
union Value {
void *ptr;
const QString *string;
AST *ast;
List<AST *> *ast_list;
DeclarationAST *declaration;
List<DeclarationAST *> *declaration_list;
ExpressionAST *expression;
List<ExpressionAST *> *expression_list;
StatementAST *statement;
List<StatementAST *> *statement_list;
TypeAST *type;
StructTypeAST::Field *field;
List<StructTypeAST::Field *> *field_list;
TranslationUnitAST *translation_unit;
FunctionIdentifierAST *function_identifier;
AST::Kind kind;
TypeAST::Precision precision;
struct {
StatementAST *thenClause;
StatementAST *elseClause;
} ifstmt;
struct {
ExpressionAST *condition;
ExpressionAST *increment;
} forstmt;
struct {
FunctionIdentifierAST *id;
List<ExpressionAST *> *arguments;
} function;
int qualifier;
LayoutQualifierAST *layout;
List<LayoutQualifierAST *> *layout_list;
struct {
int qualifier;
List<LayoutQualifierAST *> *layout_list;
} type_qualifier;
struct {
TypeAST *type;
const QString *name;
} param_declarator;
ParameterDeclarationAST *param_declaration;
FunctionDeclarationAST *function_declaration;
};
Parser(Engine *engine, const char *source, unsigned size, int variant);
~Parser();
TranslationUnitAST *parse() {
if (AST *u = parse(T_FEED_GLSL))
return u->asTranslationUnit();
return nullptr;
}
ExpressionAST *parseExpression() {
if (AST *u = parse(T_FEED_EXPRESSION))
return u->asExpression();
return nullptr;
}
AST *parse(int startToken);
private:
// 1-based
int &location(int n) { return _locationStack[_tos + n - 1]; }
Value &sym(int n) { return _symStack[_tos + n - 1]; }
AST *&ast(int n) { return _symStack[_tos + n - 1].ast; }
const QString *&string(int n) { return _symStack[_tos + n - 1].string; }
ExpressionAST *&expression(int n) { return _symStack[_tos + n - 1].expression; }
StatementAST *&statement(int n) { return _symStack[_tos + n - 1].statement; }
TypeAST *&type(int n) { return _symStack[_tos + n - 1].type; }
FunctionDeclarationAST *&function(int n) { return _symStack[_tos + n - 1].function_declaration; }
inline int consumeToken() {
if (_index < int(_tokens.size()))
return _index++;
return static_cast<int>(_tokens.size()) - 1;
}
inline const Token &tokenAt(int index) const {
if (index == 0)
return _startToken;
return _tokens.at(index);
}
inline int tokenKind(int index) const {
if (index == 0)
return _startToken.kind;
return _tokens.at(index).kind;
}
void reduce(int ruleno);
void warning(int line, const QString &message)
{
_engine->warning(line, message);
}
void error(int line, const QString &message)
{
_engine->error(line, message);
}
template <typename T>
T *makeAstNode()
{
T *node = new (_engine->pool()) T ();
node->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return node;
}
template <typename T, typename A1>
T *makeAstNode(A1 a1)
{
T *node = new (_engine->pool()) T (a1);
node->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return node;
}
template <typename T, typename A1, typename A2>
T *makeAstNode(A1 a1, A2 a2)
{
T *node = new (_engine->pool()) T (a1, a2);
node->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return node;
}
template <typename T, typename A1, typename A2, typename A3>
T *makeAstNode(A1 a1, A2 a2, A3 a3)
{
T *node = new (_engine->pool()) T (a1, a2, a3);
node->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return node;
}
template <typename T, typename A1, typename A2, typename A3, typename A4>
T *makeAstNode(A1 a1, A2 a2, A3 a3, A4 a4)
{
T *node = new (_engine->pool()) T (a1, a2, a3, a4);
node->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return node;
}
TypeAST *makeBasicType(int token)
{
TypeAST *type = new (_engine->pool()) BasicTypeAST(token, spell[token]);
type->lineno = yyloc >= 0 ? (_tokens[yyloc].line + 1) : 0;
return type;
}
private:
Engine *_engine;
int _tos;
int _index;
int yyloc;
int yytoken;
int yyrecovering;
bool _recovered;
Token _startToken;
std::vector<int> _stateStack;
std::vector<int> _locationStack;
std::vector<Value> _symStack;
std::vector<Token> _tokens;
};
} // namespace GLSL
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