glslparser.cpp

Go to the documentation of this file.

// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#include "glslparser_p.h"
#include "glslengine_p.h"
#include <iostream>
#include <cstdio>
#include <cassert>
#include <QDebug>
 
using namespace GLSL;
 
Parser::Parser(Engine *engine, const char *source, unsigned size, int variant)
    : _engine(engine), _tos(-1), _index(0), yyloc(-1), yytoken(-1), yyrecovering(0), _recovered(false)
{
    _tokens.reserve(1024);
 
    _stateStack.resize(128);
    _locationStack.resize(128);
    _symStack.resize(128);
 
    _tokens.push_back(Token()); // invalid token
 
    std::stack<int> parenStack;
    std::stack<int> bracketStack;
    std::stack<int> braceStack;
 
    Lexer lexer(engine, source, size);
    lexer.setVariant(variant);
    Token tk;
    do {
        lexer.yylex(&tk);
 
        switch (tk.kind) {
        case T_LEFT_PAREN:
            parenStack.push(static_cast<int>(_tokens.size()));
            break;
        case T_LEFT_BRACKET:
            bracketStack.push(static_cast<int>(_tokens.size()));
            break;
        case T_LEFT_BRACE:
            braceStack.push(static_cast<int>(_tokens.size()));
            break;
 
        case T_RIGHT_PAREN:
            if (! parenStack.empty()) {
                _tokens[parenStack.top()].matchingBrace = static_cast<int>(_tokens.size());
                parenStack.pop();
            }
            break;
        case T_RIGHT_BRACKET:
            if (! bracketStack.empty()) {
                _tokens[bracketStack.top()].matchingBrace = static_cast<int>(_tokens.size());
                bracketStack.pop();
            }
            break;
        case T_RIGHT_BRACE:
            if (! braceStack.empty()) {
                _tokens[braceStack.top()].matchingBrace = static_cast<int>(_tokens.size());
                braceStack.pop();
            }
            break;
        default:
            break;
        }
 
        _tokens.push_back(tk);
    } while (tk.isNot(EOF_SYMBOL));
 
    _index = 0;
}
 
Parser::~Parser()
{
}
 
AST *Parser::parse(int startToken)
{
    int action = 0;
    yytoken = -1;
    yyloc = -1;
    void *yyval = nullptr; // value of the current token.
 
    _recovered = false;
    _tos = -1;
    _startToken.kind = startToken;
    int recoveryAttempts = 0;
 
 
    do {
        recoveryAttempts = 0;
 
    againAfterRecovery:
        if (unsigned(++_tos) == _stateStack.size()) {
            _stateStack.resize(_tos * 2);
            _locationStack.resize(_tos * 2);
            _symStack.resize(_tos * 2);
        }
 
        _stateStack[_tos] = action;
 
        if (yytoken == -1 && -TERMINAL_COUNT != action_index[action]) {
            yyloc = consumeToken();
            yytoken = tokenKind(yyloc);
            if (yyrecovering)
                --yyrecovering;
            if (yytoken == T_IDENTIFIER && t_action(action, T_TYPE_NAME) != 0) {
                const Token &la = tokenAt(_index);
 
                if (la.is(T_IDENTIFIER)) {
                    yytoken = T_TYPE_NAME;
                } else if (la.is(T_LEFT_BRACKET) && la.matchingBrace != 0 &&
                           tokenAt(la.matchingBrace + 1).is(T_IDENTIFIER)) {
                    yytoken = T_TYPE_NAME;
                }
            }
            yyval = _tokens.at(yyloc).ptr;
        }
 
        action = t_action(action, yytoken);
        if (action > 0) {
            if (action == ACCEPT_STATE) {
                --_tos;
                return _symStack[0].translation_unit;
            }
            _symStack[_tos].ptr = yyval;
            _locationStack[_tos] = yyloc;
            yytoken = -1;
        } else if (action < 0) {
            const int ruleno = -action - 1;
            const int N = rhs[ruleno];
            _tos -= N;
            reduce(ruleno);
            action = nt_action(_stateStack[_tos], lhs[ruleno] - TERMINAL_COUNT);
        } else if (action == 0) {
            ++recoveryAttempts;
            if (recoveryAttempts > 10)
               break;
            const int line = _tokens[yyloc].line + 1;
            QString message = QLatin1String("Syntax error");
            if (yytoken != -1) {
                const QLatin1String s(spell[yytoken]);
                message = QString::fromLatin1("Unexpected token `%1'").arg(s);
                if (yytoken == 0) // do not freeze on unexpected end of file
                    return nullptr;
            }
 
            for (; _tos; --_tos) {
                const int state = _stateStack[_tos];
 
                static int tks1[] = {
                    T_RIGHT_BRACE, T_RIGHT_PAREN, T_RIGHT_BRACKET,
                    T_SEMICOLON, T_COLON, T_COMMA,
                    T_NUMBER, T_TYPE_NAME, T_IDENTIFIER,
                    T_LEFT_BRACE, T_LEFT_PAREN, T_LEFT_BRACKET,
                    T_WHILE,
                    0
                };
                static int tks2[] = {
                    T_RIGHT_BRACE, T_RIGHT_PAREN, T_RIGHT_BRACKET,
                    T_SEMICOLON, T_COLON, T_COMMA,
                    0
                };
                int *tks;
                if (recoveryAttempts < 2)
                    tks = tks1;
                else
                    tks = tks2; // Avoid running into an endless loop for e.g.: for(int x=0; x y
 
                for (int *tptr = tks; *tptr; ++tptr) {
                    const int next = t_action(state, *tptr);
                    if (next > 0) {
                        if (! yyrecovering && ! _recovered) {
                            _recovered = true;
                            error(line, QString::fromLatin1("Expected `%1'").arg(QLatin1String(spell[*tptr])));
                        }
 
                        yyrecovering = 3;
                        if (*tptr == T_IDENTIFIER)
                            yyval = (void *) _engine->identifier(QLatin1String("$identifier"));
                        else if (*tptr == T_NUMBER || *tptr == T_TYPE_NAME)
                            yyval = (void *) _engine->identifier(QLatin1String("$0"));
                        else
                            yyval = nullptr;
 
                        _symStack[_tos].ptr = yyval;
                        _locationStack[_tos] = yyloc;
                        yytoken = -1;
 
                        action = next;
                        goto againAfterRecovery;
                    }
                }
            }
 
            if (! _recovered) {
                _recovered = true;
                error(line, message);
            }
        }
 
    } while (action);
 
    return nullptr;
}
 
#line 657 "./glsl.g"
 
void Parser::reduce(int ruleno)
{
switch(ruleno) {
 
#line 666 "./glsl.g"
 
case 0: {
    ast(1) = makeAstNode<IdentifierExpressionAST>(string(1));
}   break;
 
#line 673 "./glsl.g"
 
case 1: {
    ast(1) = makeAstNode<LiteralExpressionAST>(string(1));
}   break;
 
#line 680 "./glsl.g"
 
case 2: {
    ast(1) = makeAstNode<LiteralExpressionAST>(_engine->identifier("true", 4));
}   break;
 
#line 687 "./glsl.g"
 
case 3: {
    ast(1) = makeAstNode<LiteralExpressionAST>(_engine->identifier("false", 5));
}   break;
 
#line 694 "./glsl.g"
 
case 4: {
    // nothing to do.
}   break;
 
#line 701 "./glsl.g"
 
case 5: {
    ast(1) = ast(2);
}   break;
 
#line 708 "./glsl.g"
 
case 6: {
    // nothing to do.
}   break;
 
#line 715 "./glsl.g"
 
case 7: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_ArrayAccess, expression(1), expression(3));
}   break;
 
#line 722 "./glsl.g"
 
case 8: {
    // nothing to do.
}   break;
 
#line 729 "./glsl.g"
 
case 9: {
    ast(1) = makeAstNode<MemberAccessExpressionAST>(expression(1), string(3));
}   break;
 
#line 736 "./glsl.g"
 
case 10: {
    ast(1) = makeAstNode<UnaryExpressionAST>(AST::Kind_PostIncrement, expression(1));
}   break;
 
#line 743 "./glsl.g"
 
case 11: {
    ast(1) = makeAstNode<UnaryExpressionAST>(AST::Kind_PostDecrement, expression(1));
}   break;
 
#line 750 "./glsl.g"
 
case 12: {
    // nothing to do.
}   break;
 
#line 757 "./glsl.g"
 
case 13: {
    // nothing to do.
}   break;
 
#line 764 "./glsl.g"
 
case 14: {
    ast(1) = makeAstNode<FunctionCallExpressionAST>
        (sym(1).function.id, sym(1).function.arguments);
}   break;
 
#line 772 "./glsl.g"
 
case 15: {
    ast(1) = makeAstNode<FunctionCallExpressionAST>
        (expression(1), sym(3).function.id, sym(3).function.arguments);
}   break;
 
#line 780 "./glsl.g"
 
case 16: {
    // nothing to do.
}   break;
 
#line 787 "./glsl.g"
 
case 17: {
    // nothing to do.
}   break;
 
#line 794 "./glsl.g"
 
case 18: {
    sym(1).function.id = sym(1).function_identifier;
    sym(1).function.arguments = nullptr;
}   break;
 
#line 802 "./glsl.g"
 
case 19: {
    sym(1).function.id = sym(1).function_identifier;
    sym(1).function.arguments = nullptr;
}   break;
 
#line 810 "./glsl.g"
 
case 20: {
    sym(1).function.id = sym(1).function_identifier;
    sym(1).function.arguments =
        makeAstNode< List<ExpressionAST *> >(expression(2));
}   break;
 
#line 819 "./glsl.g"
 
case 21: {
    sym(1).function.arguments =
        makeAstNode< List<ExpressionAST *> >
            (sym(1).function.arguments, expression(3));
}   break;
 
#line 828 "./glsl.g"
 
case 22: {
    // nothing to do.
}   break;
 
#line 835 "./glsl.g"
 
case 23: {
    ast(1) = makeAstNode<FunctionIdentifierAST>(type(1));
}   break;
 
#line 842 "./glsl.g"
 
case 24: {
    ast(1) = makeAstNode<FunctionIdentifierAST>(string(1));
}   break;
 
#line 849 "./glsl.g"
 
case 25: {
    // nothing to do.
}   break;
 
#line 856 "./glsl.g"
 
case 26: {
    ast(1) = makeAstNode<UnaryExpressionAST>(AST::Kind_PreIncrement, expression(2));
}   break;
 
#line 863 "./glsl.g"
 
case 27: {
    ast(1) = makeAstNode<UnaryExpressionAST>(AST::Kind_PreDecrement, expression(2));
}   break;
 
#line 870 "./glsl.g"
 
case 28: {
    ast(1) = makeAstNode<UnaryExpressionAST>(sym(1).kind, expression(2));
}   break;
 
#line 877 "./glsl.g"
 
case 29: {
    sym(1).kind = AST::Kind_UnaryPlus;
}   break;
 
#line 884 "./glsl.g"
 
case 30: {
    sym(1).kind = AST::Kind_UnaryMinus;
}   break;
 
#line 891 "./glsl.g"
 
case 31: {
    sym(1).kind = AST::Kind_LogicalNot;
}   break;
 
#line 898 "./glsl.g"
 
case 32: {
    sym(1).kind = AST::Kind_BitwiseNot;
}   break;
 
#line 905 "./glsl.g"
 
case 33: {
    // nothing to do.
}   break;
 
#line 912 "./glsl.g"
 
case 34: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Multiply, expression(1), expression(3));
}   break;
 
#line 919 "./glsl.g"
 
case 35: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Divide, expression(1), expression(3));
}   break;
 
#line 926 "./glsl.g"
 
case 36: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Modulus, expression(1), expression(3));
}   break;
 
#line 933 "./glsl.g"
 
case 37: {
    // nothing to do.
}   break;
 
#line 940 "./glsl.g"
 
case 38: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Plus, expression(1), expression(3));
}   break;
 
#line 947 "./glsl.g"
 
case 39: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Minus, expression(1), expression(3));
}   break;
 
#line 954 "./glsl.g"
 
case 40: {
    // nothing to do.
}   break;
 
#line 961 "./glsl.g"
 
case 41: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_ShiftLeft, expression(1), expression(3));
}   break;
 
#line 968 "./glsl.g"
 
case 42: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_ShiftRight, expression(1), expression(3));
}   break;
 
#line 975 "./glsl.g"
 
case 43: {
    // nothing to do.
}   break;
 
#line 982 "./glsl.g"
 
case 44: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_LessThan, expression(1), expression(3));
}   break;
 
#line 989 "./glsl.g"
 
case 45: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_GreaterThan, expression(1), expression(3));
}   break;
 
#line 996 "./glsl.g"
 
case 46: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_LessEqual, expression(1), expression(3));
}   break;
 
#line 1003 "./glsl.g"
 
case 47: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_GreaterEqual, expression(1), expression(3));
}   break;
 
#line 1010 "./glsl.g"
 
case 48: {
    // nothing to do.
}   break;
 
#line 1017 "./glsl.g"
 
case 49: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Equal, expression(1), expression(3));
}   break;
 
#line 1024 "./glsl.g"
 
case 50: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_NotEqual, expression(1), expression(3));
}   break;
 
#line 1031 "./glsl.g"
 
case 51: {
    // nothing to do.
}   break;
 
#line 1038 "./glsl.g"
 
case 52: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_BitwiseAnd, expression(1), expression(3));
}   break;
 
#line 1045 "./glsl.g"
 
case 53: {
    // nothing to do.
}   break;
 
#line 1052 "./glsl.g"
 
case 54: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_BitwiseXor, expression(1), expression(3));
}   break;
 
#line 1059 "./glsl.g"
 
case 55: {
    // nothing to do.
}   break;
 
#line 1066 "./glsl.g"
 
case 56: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_BitwiseOr, expression(1), expression(3));
}   break;
 
#line 1073 "./glsl.g"
 
case 57: {
    // nothing to do.
}   break;
 
#line 1080 "./glsl.g"
 
case 58: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_LogicalAnd, expression(1), expression(3));
}   break;
 
#line 1087 "./glsl.g"
 
case 59: {
    // nothing to do.
}   break;
 
#line 1094 "./glsl.g"
 
case 60: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_LogicalXor, expression(1), expression(3));
}   break;
 
#line 1101 "./glsl.g"
 
case 61: {
    // nothing to do.
}   break;
 
#line 1108 "./glsl.g"
 
case 62: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_LogicalOr, expression(1), expression(3));
}   break;
 
#line 1115 "./glsl.g"
 
case 63: {
    // nothing to do.
}   break;
 
#line 1122 "./glsl.g"
 
case 64: {
    ast(1) = makeAstNode<TernaryExpressionAST>(AST::Kind_Conditional, expression(1), expression(3), expression(5));
}   break;
 
#line 1129 "./glsl.g"
 
case 65: {
    // nothing to do.
}   break;
 
#line 1136 "./glsl.g"
 
case 66: {
    ast(1) = makeAstNode<AssignmentExpressionAST>(sym(2).kind, expression(1), expression(3));
}   break;
 
#line 1143 "./glsl.g"
 
case 67: {
    sym(1).kind = AST::Kind_Assign;
}   break;
 
#line 1150 "./glsl.g"
 
case 68: {
    sym(1).kind = AST::Kind_AssignMultiply;
}   break;
 
#line 1157 "./glsl.g"
 
case 69: {
    sym(1).kind = AST::Kind_AssignDivide;
}   break;
 
#line 1164 "./glsl.g"
 
case 70: {
    sym(1).kind = AST::Kind_AssignModulus;
}   break;
 
#line 1171 "./glsl.g"
 
case 71: {
    sym(1).kind = AST::Kind_AssignPlus;
}   break;
 
#line 1178 "./glsl.g"
 
case 72: {
    sym(1).kind = AST::Kind_AssignMinus;
}   break;
 
#line 1185 "./glsl.g"
 
case 73: {
    sym(1).kind = AST::Kind_AssignShiftLeft;
}   break;
 
#line 1192 "./glsl.g"
 
case 74: {
    sym(1).kind = AST::Kind_AssignShiftRight;
}   break;
 
#line 1199 "./glsl.g"
 
case 75: {
    sym(1).kind = AST::Kind_AssignAnd;
}   break;
 
#line 1206 "./glsl.g"
 
case 76: {
    sym(1).kind = AST::Kind_AssignXor;
}   break;
 
#line 1213 "./glsl.g"
 
case 77: {
    sym(1).kind = AST::Kind_AssignOr;
}   break;
 
#line 1220 "./glsl.g"
 
case 78: {
    // nothing to do.
}   break;
 
#line 1227 "./glsl.g"
 
case 79: {
    ast(1) = makeAstNode<BinaryExpressionAST>(AST::Kind_Comma, expression(1), expression(3));
}   break;
 
#line 1234 "./glsl.g"
 
case 80: {
    // nothing to do.
}   break;
 
#line 1241 "./glsl.g"
 
case 81: {
    // nothing to do.
}   break;
 
#line 1248 "./glsl.g"
 
case 82: {
    ast(1) = makeAstNode<InitDeclarationAST>(sym(1).declaration_list);
}   break;
 
#line 1255 "./glsl.g"
 
case 83: {
    ast(1) = makeAstNode<PrecisionDeclarationAST>(sym(2).precision, type(3));
}   break;
 
#line 1262 "./glsl.g"
 
case 84: {
    if (sym(1).type_qualifier.qualifier != QualifiedTypeAST::Struct) {
        // TODO: issue an error if the qualifier is not "struct".
    }
    TypeAST *type = makeAstNode<StructTypeAST>(string(2), sym(4).field_list);
    ast(1) = makeAstNode<TypeDeclarationAST>(type);
}   break;
 
#line 1273 "./glsl.g"
 
case 85: {
    if ((sym(1).type_qualifier.qualifier & QualifiedTypeAST::Struct) == 0) {
        // TODO: issue an error if the qualifier does not contain "struct".
    }
    TypeAST *type = makeAstNode<StructTypeAST>(string(2), sym(4).field_list);
    TypeAST *qualtype = type;
    if (sym(1).type_qualifier.qualifier != QualifiedTypeAST::Struct) {
        qualtype = makeAstNode<QualifiedTypeAST>
            (sym(1).type_qualifier.qualifier & ~QualifiedTypeAST::Struct, qualtype,
             sym(1).type_qualifier.layout_list);
    }
    ast(1) = makeAstNode<TypeAndVariableDeclarationAST>
        (makeAstNode<TypeDeclarationAST>(type),
         makeAstNode<VariableDeclarationAST>(qualtype, string(6)));
}   break;
 
#line 1292 "./glsl.g"
 
case 86: {
    if ((sym(1).type_qualifier.qualifier & QualifiedTypeAST::Struct) == 0) {
        // TODO: issue an error if the qualifier does not contain "struct".
    }
    TypeAST *type = makeAstNode<StructTypeAST>(string(2), sym(4).field_list);
    TypeAST *qualtype = type;
    if (sym(1).type_qualifier.qualifier != QualifiedTypeAST::Struct) {
        qualtype = makeAstNode<QualifiedTypeAST>
            (sym(1).type_qualifier.qualifier & ~QualifiedTypeAST::Struct, qualtype,
             sym(1).type_qualifier.layout_list);
    }
    ast(1) = makeAstNode<TypeAndVariableDeclarationAST>
        (makeAstNode<TypeDeclarationAST>(type),
         makeAstNode<VariableDeclarationAST>
            (makeAstNode<ArrayTypeAST>(qualtype), string(6)));
}   break;
 
#line 1312 "./glsl.g"
 
case 87: {
    if ((sym(1).type_qualifier.qualifier & QualifiedTypeAST::Struct) == 0) {
        // TODO: issue an error if the qualifier does not contain "struct".
    }
    TypeAST *type = makeAstNode<StructTypeAST>(string(2), sym(4).field_list);
    TypeAST *qualtype = type;
    if (sym(1).type_qualifier.qualifier != QualifiedTypeAST::Struct) {
        qualtype = makeAstNode<QualifiedTypeAST>
            (sym(1).type_qualifier.qualifier & ~QualifiedTypeAST::Struct, qualtype,
             sym(1).type_qualifier.layout_list);
    }
    ast(1) = makeAstNode<TypeAndVariableDeclarationAST>
        (makeAstNode<TypeDeclarationAST>(type),
         makeAstNode<VariableDeclarationAST>
            (makeAstNode<ArrayTypeAST>(qualtype, expression(8)), string(6)));
}   break;
 
#line 1332 "./glsl.g"
 
case 88: {
    TypeAST *type = makeAstNode<QualifiedTypeAST>
        (sym(1).type_qualifier.qualifier, (TypeAST *)nullptr,
         sym(1).type_qualifier.layout_list);
    ast(1) = makeAstNode<TypeDeclarationAST>(type);
}   break;
 
#line 1342 "./glsl.g"
 
case 89: {
    function(1)->finishParams();
}   break;
 
#line 1349 "./glsl.g"
 
case 90: {
    // nothing to do.
}   break;
 
#line 1356 "./glsl.g"
 
case 91: {
    // nothing to do.
}   break;
 
#line 1363 "./glsl.g"
 
case 92: {
    function(1)->params = makeAstNode< List<ParameterDeclarationAST *> >
        (sym(2).param_declaration);
}   break;
 
#line 1371 "./glsl.g"
 
case 93: {
    function(1)->params = makeAstNode< List<ParameterDeclarationAST *> >
        (function(1)->params, sym(3).param_declaration);
}   break;
 
#line 1379 "./glsl.g"
 
case 94: {
    function(1) = makeAstNode<FunctionDeclarationAST>(type(1), string(2));
}   break;
 
#line 1386 "./glsl.g"
 
case 95: {
    sym(1).param_declarator.type = type(1);
    sym(1).param_declarator.name = string(2);
}   break;
 
#line 1394 "./glsl.g"
 
case 96: {
    sym(1).param_declarator.type = makeAstNode<ArrayTypeAST>(type(1), expression(4));
    sym(1).param_declarator.name = string(2);
}   break;
 
#line 1402 "./glsl.g"
 
case 97: {
    ast(1) = makeAstNode<ParameterDeclarationAST>
        (makeAstNode<QualifiedTypeAST>
            (sym(1).qualifier, sym(3).param_declarator.type,
             (List<LayoutQualifierAST *> *)nullptr),
         ParameterDeclarationAST::Qualifier(sym(2).qualifier),
         sym(3).param_declarator.name);
}   break;
 
#line 1414 "./glsl.g"
 
case 98: {
    ast(1) = makeAstNode<ParameterDeclarationAST>
        (sym(2).param_declarator.type,
         ParameterDeclarationAST::Qualifier(sym(1).qualifier),
         sym(2).param_declarator.name);
}   break;
 
#line 1424 "./glsl.g"
 
case 99: {
    ast(1) = makeAstNode<ParameterDeclarationAST>
        (makeAstNode<QualifiedTypeAST>
            (sym(1).qualifier, type(3), (List<LayoutQualifierAST *> *)nullptr),
         ParameterDeclarationAST::Qualifier(sym(2).qualifier),
         (const QString *)nullptr);
}   break;
 
#line 1435 "./glsl.g"
 
case 100: {
    ast(1) = makeAstNode<ParameterDeclarationAST>
        (type(2), ParameterDeclarationAST::Qualifier(sym(1).qualifier),
         (const QString *)nullptr);
}   break;
 
#line 1444 "./glsl.g"
 
case 101: {
    sym(1).qualifier = ParameterDeclarationAST::In;
}   break;
 
#line 1451 "./glsl.g"
 
case 102: {
    sym(1).qualifier = ParameterDeclarationAST::In;
}   break;
 
#line 1458 "./glsl.g"
 
case 103: {
    sym(1).qualifier = ParameterDeclarationAST::Out;
}   break;
 
#line 1465 "./glsl.g"
 
case 104: {
    sym(1).qualifier = ParameterDeclarationAST::InOut;
}   break;
 
#line 1472 "./glsl.g"
 
case 105: {
    // nothing to do.
}   break;
 
#line 1479 "./glsl.g"
 
case 106: {
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
        (sym(1).declaration);
}   break;
 
#line 1487 "./glsl.g"
 
case 107: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>(type, string(3));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1497 "./glsl.g"
 
case 108: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    type = makeAstNode<ArrayTypeAST>(type);
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>(type, string(3));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1508 "./glsl.g"
 
case 109: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    type = makeAstNode<ArrayTypeAST>(type, expression(5));
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>(type, string(3));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1519 "./glsl.g"
 
case 110: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    type = makeAstNode<ArrayTypeAST>(type);
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>
            (type, string(3), expression(7));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1531 "./glsl.g"
 
case 111: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    type = makeAstNode<ArrayTypeAST>(type, expression(5));
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>
            (type, string(3), expression(8));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1543 "./glsl.g"
 
case 112: {
    TypeAST *type = VariableDeclarationAST::declarationType(sym(1).declaration_list);
    DeclarationAST *decl = makeAstNode<VariableDeclarationAST>
            (type, string(3), expression(5));
    sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, decl);
}   break;
 
#line 1554 "./glsl.g"
 
case 113: {
    ast(1) = makeAstNode<TypeDeclarationAST>(type(1));
}   break;
 
#line 1561 "./glsl.g"
 
case 114: {
    ast(1) = makeAstNode<VariableDeclarationAST>(type(1), string(2));
}   break;
 
#line 1568 "./glsl.g"
 
case 115: {
    ast(1) = makeAstNode<VariableDeclarationAST>
        (makeAstNode<ArrayTypeAST>(type(1)), string(2));
}   break;
 
#line 1576 "./glsl.g"
 
case 116: {
    ast(1) = makeAstNode<VariableDeclarationAST>
        (makeAstNode<ArrayTypeAST>(type(1), expression(4)), string(2));
}   break;
 
#line 1584 "./glsl.g"
 
case 117: {
    ast(1) = makeAstNode<VariableDeclarationAST>
        (makeAstNode<ArrayTypeAST>(type(1)), string(2), expression(6));
}   break;
 
#line 1592 "./glsl.g"
 
case 118: {
    ast(1) = makeAstNode<VariableDeclarationAST>
        (makeAstNode<ArrayTypeAST>(type(1), expression(4)),
         string(2), expression(7));
}   break;
 
#line 1601 "./glsl.g"
 
case 119: {
    ast(1) = makeAstNode<VariableDeclarationAST>
        (type(1), string(2), expression(4));
}   break;
 
#line 1609 "./glsl.g"
 
case 120: {
    ast(1) = makeAstNode<InvariantDeclarationAST>(string(2));
}   break;
 
#line 1616 "./glsl.g"
 
case 121: {
    ast(1) = makeAstNode<QualifiedTypeAST>(0, type(1), (List<LayoutQualifierAST *> *)nullptr);
}   break;
 
#line 1623 "./glsl.g"
 
case 122: {
    ast(1) = makeAstNode<QualifiedTypeAST>
        (sym(1).type_qualifier.qualifier, type(2),
         sym(1).type_qualifier.layout_list);
}   break;
 
#line 1632 "./glsl.g"
 
case 123: {
    sym(1).qualifier = QualifiedTypeAST::Invariant;
}   break;
 
#line 1639 "./glsl.g"
 
case 124: {
    sym(1).qualifier = QualifiedTypeAST::Smooth;
}   break;
 
#line 1646 "./glsl.g"
 
case 125: {
    sym(1).qualifier = QualifiedTypeAST::Flat;
}   break;
 
#line 1653 "./glsl.g"
 
case 126: {
    sym(1).qualifier = QualifiedTypeAST::NoPerspective;
}   break;
 
#line 1660 "./glsl.g"
 
case 127: {
    sym(1) = sym(3);
}   break;
 
#line 1667 "./glsl.g"
 
case 128: {
    sym(1).layout_list = makeAstNode< List<LayoutQualifierAST *> >(sym(1).layout);
}   break;
 
#line 1674 "./glsl.g"
 
case 129: {
    sym(1).layout_list = makeAstNode< List<LayoutQualifierAST *> >(sym(1).layout_list, sym(3).layout);
}   break;
 
#line 1681 "./glsl.g"
 
case 130: {
    sym(1).layout = makeAstNode<LayoutQualifierAST>(string(1), (const QString *)nullptr);
}   break;
 
#line 1688 "./glsl.g"
 
case 131: {
    sym(1).layout = makeAstNode<LayoutQualifierAST>(string(1), string(3));
}   break;
 
#line 1695 "./glsl.g"
 
case 132: {
    sym(1).qualifier = QualifiedTypeAST::Const;
}   break;
 
#line 1702 "./glsl.g"
 
case 133: {
    sym(1).type_qualifier.qualifier = sym(1).qualifier;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1710 "./glsl.g"
 
case 134: {
    sym(1).type_qualifier.layout_list = sym(1).layout_list;
    sym(1).type_qualifier.qualifier = 0;
}   break;
 
#line 1718 "./glsl.g"
 
case 135: {
    sym(1).type_qualifier.layout_list = sym(1).layout_list;
    sym(1).type_qualifier.qualifier = sym(2).qualifier;
}   break;
 
#line 1726 "./glsl.g"
 
case 136: {
    sym(1).type_qualifier.qualifier = sym(1).qualifier | sym(2).qualifier;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1734 "./glsl.g"
 
case 137: {
    sym(1).type_qualifier.qualifier = sym(1).qualifier;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1742 "./glsl.g"
 
case 138: {
    sym(1).type_qualifier.qualifier = sym(1).qualifier | sym(2).qualifier;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1750 "./glsl.g"
 
case 139: {
    sym(1).type_qualifier.qualifier = sym(1).qualifier | sym(2).qualifier | sym(3).qualifier;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1758 "./glsl.g"
 
case 140: {
    sym(1).type_qualifier.qualifier = QualifiedTypeAST::Invariant;
    sym(1).type_qualifier.layout_list = nullptr;
}   break;
 
#line 1766 "./glsl.g"
 
case 141: {
    sym(1).qualifier = QualifiedTypeAST::Const;
}   break;
 
#line 1773 "./glsl.g"
 
case 142: {
    sym(1).qualifier = QualifiedTypeAST::Attribute;
}   break;
 
#line 1780 "./glsl.g"
 
case 143: {
    sym(1).qualifier = QualifiedTypeAST::Varying;
}   break;
 
#line 1787 "./glsl.g"
 
case 144: {
    sym(1).qualifier = QualifiedTypeAST::CentroidVarying;
}   break;
 
#line 1794 "./glsl.g"
 
case 145: {
    sym(1).qualifier = QualifiedTypeAST::In;
}   break;
 
#line 1801 "./glsl.g"
 
case 146: {
    sym(1).qualifier = QualifiedTypeAST::Out;
}   break;
 
#line 1808 "./glsl.g"
 
case 147: {
    sym(1).qualifier = QualifiedTypeAST::CentroidIn;
}   break;
 
#line 1815 "./glsl.g"
 
case 148: {
    sym(1).qualifier = QualifiedTypeAST::CentroidOut;
}   break;
 
#line 1822 "./glsl.g"
 
case 149: {
    sym(1).qualifier = QualifiedTypeAST::PatchIn;
}   break;
 
#line 1829 "./glsl.g"
 
case 150: {
    sym(1).qualifier = QualifiedTypeAST::PatchOut;
}   break;
 
#line 1836 "./glsl.g"
 
case 151: {
    sym(1).qualifier = QualifiedTypeAST::SampleIn;
}   break;
 
#line 1843 "./glsl.g"
 
case 152: {
    sym(1).qualifier = QualifiedTypeAST::SampleOut;
}   break;
 
#line 1850 "./glsl.g"
 
case 153: {
    sym(1).qualifier = QualifiedTypeAST::Uniform;
}   break;
 
#line 1857 "./glsl.g"
 
case 154: {
    // nothing to do.
}   break;
 
#line 1864 "./glsl.g"
 
case 155: {
    if (!type(2)->setPrecision(sym(1).precision)) {
        // TODO: issue an error about precision not allowed on this type.
    }
    ast(1) = type(2);
}   break;
 
#line 1874 "./glsl.g"
 
case 156: {
    // nothing to do.
}   break;
 
#line 1881 "./glsl.g"
 
case 157: {
    ast(1) = makeAstNode<ArrayTypeAST>(type(1));
}   break;
 
#line 1888 "./glsl.g"
 
case 158: {
    ast(1) = makeAstNode<ArrayTypeAST>(type(1), expression(3));
}   break;
 
#line 1895 "./glsl.g"
 
case 159: {
    ast(1) = makeBasicType(T_VOID);
}   break;
 
#line 1902 "./glsl.g"
 
case 160: {
    ast(1) = makeBasicType(T_FLOAT);
}   break;
 
#line 1909 "./glsl.g"
 
case 161: {
    ast(1) = makeBasicType(T_DOUBLE);
}   break;
 
#line 1916 "./glsl.g"
 
case 162: {
    ast(1) = makeBasicType(T_INT);
}   break;
 
#line 1923 "./glsl.g"
 
case 163: {
    ast(1) = makeBasicType(T_UINT);
}   break;
 
#line 1930 "./glsl.g"
 
case 164: {
    ast(1) = makeBasicType(T_BOOL);
}   break;
 
#line 1937 "./glsl.g"
 
case 165: {
    ast(1) = makeBasicType(T_VEC2);
}   break;
 
#line 1944 "./glsl.g"
 
case 166: {
    ast(1) = makeBasicType(T_VEC3);
}   break;
 
#line 1951 "./glsl.g"
 
case 167: {
    ast(1) = makeBasicType(T_VEC4);
}   break;
 
#line 1958 "./glsl.g"
 
case 168: {
    ast(1) = makeBasicType(T_DVEC2);
}   break;
 
#line 1965 "./glsl.g"
 
case 169: {
    ast(1) = makeBasicType(T_DVEC3);
}   break;
 
#line 1972 "./glsl.g"
 
case 170: {
    ast(1) = makeBasicType(T_DVEC4);
}   break;
 
#line 1979 "./glsl.g"
 
case 171: {
    ast(1) = makeBasicType(T_BVEC2);
}   break;
 
#line 1986 "./glsl.g"
 
case 172: {
    ast(1) = makeBasicType(T_BVEC3);
}   break;
 
#line 1993 "./glsl.g"
 
case 173: {
    ast(1) = makeBasicType(T_BVEC4);
}   break;
 
#line 2000 "./glsl.g"
 
case 174: {
    ast(1) = makeBasicType(T_IVEC2);
}   break;
 
#line 2007 "./glsl.g"
 
case 175: {
    ast(1) = makeBasicType(T_IVEC3);
}   break;
 
#line 2014 "./glsl.g"
 
case 176: {
    ast(1) = makeBasicType(T_IVEC4);
}   break;
 
#line 2021 "./glsl.g"
 
case 177: {
    ast(1) = makeBasicType(T_UVEC2);
}   break;
 
#line 2028 "./glsl.g"
 
case 178: {
    ast(1) = makeBasicType(T_UVEC3);
}   break;
 
#line 2035 "./glsl.g"
 
case 179: {
    ast(1) = makeBasicType(T_UVEC4);
}   break;
 
#line 2042 "./glsl.g"
 
case 180: {
    ast(1) = makeBasicType(T_MAT2);
}   break;
 
#line 2049 "./glsl.g"
 
case 181: {
    ast(1) = makeBasicType(T_MAT3);
}   break;
 
#line 2056 "./glsl.g"
 
case 182: {
    ast(1) = makeBasicType(T_MAT4);
}   break;
 
#line 2063 "./glsl.g"
 
case 183: {
    ast(1) = makeBasicType(T_MAT2);
}   break;
 
#line 2070 "./glsl.g"
 
case 184: {
    ast(1) = makeBasicType(T_MAT2X3);
}   break;
 
#line 2077 "./glsl.g"
 
case 185: {
    ast(1) = makeBasicType(T_MAT2X4);
}   break;
 
#line 2084 "./glsl.g"
 
case 186: {
    ast(1) = makeBasicType(T_MAT3X2);
}   break;
 
#line 2091 "./glsl.g"
 
case 187: {
    ast(1) = makeBasicType(T_MAT3);
}   break;
 
#line 2098 "./glsl.g"
 
case 188: {
    ast(1) = makeBasicType(T_MAT3X4);
}   break;
 
#line 2105 "./glsl.g"
 
case 189: {
    ast(1) = makeBasicType(T_MAT4X2);
}   break;
 
#line 2112 "./glsl.g"
 
case 190: {
    ast(1) = makeBasicType(T_MAT4X3);
}   break;
 
#line 2119 "./glsl.g"
 
case 191: {
    ast(1) = makeBasicType(T_MAT4);
}   break;
 
#line 2126 "./glsl.g"
 
case 192: {
    ast(1) = makeBasicType(T_DMAT2);
}   break;
 
#line 2133 "./glsl.g"
 
case 193: {
    ast(1) = makeBasicType(T_DMAT3);
}   break;
 
#line 2140 "./glsl.g"
 
case 194: {
    ast(1) = makeBasicType(T_DMAT4);
}   break;
 
#line 2147 "./glsl.g"
 
case 195: {
    ast(1) = makeBasicType(T_DMAT2);
}   break;
 
#line 2154 "./glsl.g"
 
case 196: {
    ast(1) = makeBasicType(T_DMAT2X3);
}   break;
 
#line 2161 "./glsl.g"
 
case 197: {
    ast(1) = makeBasicType(T_DMAT2X4);
}   break;
 
#line 2168 "./glsl.g"
 
case 198: {
    ast(1) = makeBasicType(T_DMAT3X2);
}   break;
 
#line 2175 "./glsl.g"
 
case 199: {
    ast(1) = makeBasicType(T_DMAT3);
}   break;
 
#line 2182 "./glsl.g"
 
case 200: {
    ast(1) = makeBasicType(T_DMAT3X4);
}   break;
 
#line 2189 "./glsl.g"
 
case 201: {
    ast(1) = makeBasicType(T_DMAT4X2);
}   break;
 
#line 2196 "./glsl.g"
 
case 202: {
    ast(1) = makeBasicType(T_DMAT4X3);
}   break;
 
#line 2203 "./glsl.g"
 
case 203: {
    ast(1) = makeBasicType(T_DMAT4);
}   break;
 
#line 2210 "./glsl.g"
 
case 204: {
    ast(1) = makeBasicType(T_SAMPLER1D);
}   break;
 
#line 2217 "./glsl.g"
 
case 205: {
    ast(1) = makeBasicType(T_SAMPLER2D);
}   break;
 
#line 2224 "./glsl.g"
 
case 206: {
    ast(1) = makeBasicType(T_SAMPLER3D);
}   break;
 
#line 2231 "./glsl.g"
 
case 207: {
    ast(1) = makeBasicType(T_SAMPLERCUBE);
}   break;
 
#line 2238 "./glsl.g"
 
case 208: {
    ast(1) = makeBasicType(T_SAMPLER1DSHADOW);
}   break;
 
#line 2245 "./glsl.g"
 
case 209: {
    ast(1) = makeBasicType(T_SAMPLER2DSHADOW);
}   break;
 
#line 2252 "./glsl.g"
 
case 210: {
    ast(1) = makeBasicType(T_SAMPLERCUBESHADOW);
}   break;
 
#line 2259 "./glsl.g"
 
case 211: {
    ast(1) = makeBasicType(T_SAMPLER1DARRAY);
}   break;
 
#line 2266 "./glsl.g"
 
case 212: {
    ast(1) = makeBasicType(T_SAMPLER2DARRAY);
}   break;
 
#line 2273 "./glsl.g"
 
case 213: {
    ast(1) = makeBasicType(T_SAMPLER1DARRAYSHADOW);
}   break;
 
#line 2280 "./glsl.g"
 
case 214: {
    ast(1) = makeBasicType(T_SAMPLER2DARRAYSHADOW);
}   break;
 
#line 2287 "./glsl.g"
 
case 215: {
    ast(1) = makeBasicType(T_SAMPLERCUBEARRAY);
}   break;
 
#line 2294 "./glsl.g"
 
case 216: {
    ast(1) = makeBasicType(T_SAMPLERCUBEARRAYSHADOW);
}   break;
 
#line 2301 "./glsl.g"
 
case 217: {
    ast(1) = makeBasicType(T_ISAMPLER1D);
}   break;
 
#line 2308 "./glsl.g"
 
case 218: {
    ast(1) = makeBasicType(T_ISAMPLER2D);
}   break;
 
#line 2315 "./glsl.g"
 
case 219: {
    ast(1) = makeBasicType(T_ISAMPLER3D);
}   break;
 
#line 2322 "./glsl.g"
 
case 220: {
    ast(1) = makeBasicType(T_ISAMPLERCUBE);
}   break;
 
#line 2329 "./glsl.g"
 
case 221: {
    ast(1) = makeBasicType(T_ISAMPLER1DARRAY);
}   break;
 
#line 2336 "./glsl.g"
 
case 222: {
    ast(1) = makeBasicType(T_ISAMPLER2DARRAY);
}   break;
 
#line 2343 "./glsl.g"
 
case 223: {
    ast(1) = makeBasicType(T_ISAMPLERCUBEARRAY);
}   break;
 
#line 2350 "./glsl.g"
 
case 224: {
    ast(1) = makeBasicType(T_USAMPLER1D);
}   break;
 
#line 2357 "./glsl.g"
 
case 225: {
    ast(1) = makeBasicType(T_USAMPLER2D);
}   break;
 
#line 2364 "./glsl.g"
 
case 226: {
    ast(1) = makeBasicType(T_USAMPLER3D);
}   break;
 
#line 2371 "./glsl.g"
 
case 227: {
    ast(1) = makeBasicType(T_USAMPLERCUBE);
}   break;
 
#line 2378 "./glsl.g"
 
case 228: {
    ast(1) = makeBasicType(T_USAMPLER1DARRAY);
}   break;
 
#line 2385 "./glsl.g"
 
case 229: {
    ast(1) = makeBasicType(T_USAMPLER2DARRAY);
}   break;
 
#line 2392 "./glsl.g"
 
case 230: {
    ast(1) = makeBasicType(T_USAMPLERCUBEARRAY);
}   break;
 
#line 2399 "./glsl.g"
 
case 231: {
    ast(1) = makeBasicType(T_SAMPLER2DRECT);
}   break;
 
#line 2406 "./glsl.g"
 
case 232: {
    ast(1) = makeBasicType(T_SAMPLER2DRECTSHADOW);
}   break;
 
#line 2413 "./glsl.g"
 
case 233: {
    ast(1) = makeBasicType(T_ISAMPLER2DRECT);
}   break;
 
#line 2420 "./glsl.g"
 
case 234: {
    ast(1) = makeBasicType(T_USAMPLER2DRECT);
}   break;
 
#line 2427 "./glsl.g"
 
case 235: {
    ast(1) = makeBasicType(T_SAMPLERBUFFER);
}   break;
 
#line 2434 "./glsl.g"
 
case 236: {
    ast(1) = makeBasicType(T_ISAMPLERBUFFER);
}   break;
 
#line 2441 "./glsl.g"
 
case 237: {
    ast(1) = makeBasicType(T_USAMPLERBUFFER);
}   break;
 
#line 2448 "./glsl.g"
 
case 238: {
    ast(1) = makeBasicType(T_SAMPLER2DMS);
}   break;
 
#line 2455 "./glsl.g"
 
case 239: {
    ast(1) = makeBasicType(T_ISAMPLER2DMS);
}   break;
 
#line 2462 "./glsl.g"
 
case 240: {
    ast(1) = makeBasicType(T_USAMPLER2DMS);
}   break;
 
#line 2469 "./glsl.g"
 
case 241: {
    ast(1) = makeBasicType(T_SAMPLER2DMSARRAY);
}   break;
 
#line 2476 "./glsl.g"
 
case 242: {
    ast(1) = makeBasicType(T_ISAMPLER2DMSARRAY);
}   break;
 
#line 2483 "./glsl.g"
 
case 243: {
    ast(1) = makeBasicType(T_USAMPLER2DMSARRAY);
}   break;
 
#line 2490 "./glsl.g"
 
case 244: {
    // nothing to do.
}   break;
 
#line 2497 "./glsl.g"
 
case 245: {
    ast(1) = makeAstNode<NamedTypeAST>(string(1));
}   break;
 
#line 2504 "./glsl.g"
 
case 246: {
    sym(1).precision = TypeAST::Highp;
}   break;
 
#line 2511 "./glsl.g"
 
case 247: {
    sym(1).precision = TypeAST::Mediump;
}   break;
 
#line 2518 "./glsl.g"
 
case 248: {
    sym(1).precision = TypeAST::Lowp;
}   break;
 
#line 2525 "./glsl.g"
 
case 249: {
    ast(1) = makeAstNode<StructTypeAST>(string(2), sym(4).field_list);
}   break;
 
#line 2532 "./glsl.g"
 
case 250: {
    ast(1) = makeAstNode<StructTypeAST>(sym(3).field_list);
}   break;
 
#line 2539 "./glsl.g"
 
case 251: {
    // nothing to do.
}   break;
 
#line 2546 "./glsl.g"
 
case 252: {
    sym(1).field_list = appendLists(sym(1).field_list, sym(2).field_list);
}   break;
 
#line 2553 "./glsl.g"
 
case 253: {
    sym(1).field_list = StructTypeAST::fixInnerTypes(type(1), sym(2).field_list);
}   break;
 
#line 2560 "./glsl.g"
 
case 254: {
    sym(1).field_list = StructTypeAST::fixInnerTypes
        (makeAstNode<QualifiedTypeAST>
            (sym(1).type_qualifier.qualifier, type(2),
             sym(1).type_qualifier.layout_list), sym(3).field_list);
}   break;
 
#line 2570 "./glsl.g"
 
case 255: {
    // nothing to do.
    sym(1).field_list = makeAstNode< List<StructTypeAST::Field *> >(sym(1).field);
}   break;
 
#line 2578 "./glsl.g"
 
case 256: {
    sym(1).field_list = makeAstNode< List<StructTypeAST::Field *> >(sym(1).field_list, sym(3).field);
}   break;
 
#line 2585 "./glsl.g"
 
case 257: {
    sym(1).field = makeAstNode<StructTypeAST::Field>(string(1));
}   break;
 
#line 2592 "./glsl.g"
 
case 258: {
    sym(1).field = makeAstNode<StructTypeAST::Field>
        (string(1), makeAstNode<ArrayTypeAST>((TypeAST *)nullptr));
}   break;
 
#line 2600 "./glsl.g"
 
case 259: {
    sym(1).field = makeAstNode<StructTypeAST::Field>
        (string(1), makeAstNode<ArrayTypeAST>((TypeAST *)nullptr, expression(3)));
}   break;
 
#line 2608 "./glsl.g"
 
case 260: {
    // nothing to do.
}   break;
 
#line 2615 "./glsl.g"
 
case 261: {
    ast(1) = makeAstNode<DeclarationStatementAST>(sym(1).declaration);
}   break;
 
#line 2622 "./glsl.g"
 
case 262: {
    // nothing to do.
}   break;
 
#line 2629 "./glsl.g"
 
case 263: {
    // nothing to do.
}   break;
 
#line 2636 "./glsl.g"
 
case 264: {
    // nothing to do.
}   break;
 
#line 2643 "./glsl.g"
 
case 265: {
    // nothing to do.
}   break;
 
#line 2650 "./glsl.g"
 
case 266: {
    // nothing to do.
}   break;
 
#line 2657 "./glsl.g"
 
case 267: {
    // nothing to do.
}   break;
 
#line 2664 "./glsl.g"
 
case 268: {
    // nothing to do.
}   break;
 
#line 2671 "./glsl.g"
 
case 269: {
    // nothing to do.
}   break;
 
#line 2678 "./glsl.g"
 
case 270: {
    // nothing to do.
}   break;
 
#line 2685 "./glsl.g"
 
case 271: {
    CompoundStatementAST *stmt = makeAstNode<CompoundStatementAST>();
    stmt->start = tokenAt(location(1)).begin();
    stmt->end = tokenAt(location(2)).end();
    ast(1) = stmt;
}   break;
 
#line 2695 "./glsl.g"
 
case 272: {
    CompoundStatementAST *stmt = makeAstNode<CompoundStatementAST>(sym(2).statement_list);
    stmt->start = tokenAt(location(1)).begin();
    stmt->end = tokenAt(location(3)).end();
    ast(1) = stmt;
}   break;
 
#line 2705 "./glsl.g"
 
case 273: {
    // nothing to do.
}   break;
 
#line 2712 "./glsl.g"
 
case 274: {
    // nothing to do.
}   break;
 
#line 2719 "./glsl.g"
 
case 275: {
    CompoundStatementAST *stmt = makeAstNode<CompoundStatementAST>();
    stmt->start = tokenAt(location(1)).begin();
    stmt->end = tokenAt(location(2)).end();
    ast(1) = stmt;
}   break;
 
#line 2729 "./glsl.g"
 
case 276: {
    CompoundStatementAST *stmt = makeAstNode<CompoundStatementAST>(sym(2).statement_list);
    stmt->start = tokenAt(location(1)).begin();
    stmt->end = tokenAt(location(3)).end();
    ast(1) = stmt;
}   break;
 
#line 2739 "./glsl.g"
 
case 277: {
    sym(1).statement_list = makeAstNode< List<StatementAST *> >(sym(1).statement);
}   break;
 
#line 2746 "./glsl.g"
 
case 278: {
    sym(1).statement_list = makeAstNode< List<StatementAST *> >(sym(1).statement_list, sym(2).statement);
}   break;
 
#line 2753 "./glsl.g"
 
case 279: {
    ast(1) = makeAstNode<CompoundStatementAST>();  // Empty statement
}   break;
 
#line 2760 "./glsl.g"
 
case 280: {
    ast(1) = makeAstNode<ExpressionStatementAST>(expression(1));
}   break;
 
#line 2767 "./glsl.g"
 
case 281: {
    ast(1) = makeAstNode<IfStatementAST>(expression(3), sym(5).ifstmt.thenClause, sym(5).ifstmt.elseClause);
}   break;
 
#line 2774 "./glsl.g"
 
case 282: {
    sym(1).ifstmt.thenClause = statement(1);
    sym(1).ifstmt.elseClause = statement(3);
}   break;
 
#line 2782 "./glsl.g"
 
case 283: {
    sym(1).ifstmt.thenClause = statement(1);
    sym(1).ifstmt.elseClause = nullptr;
}   break;
 
#line 2790 "./glsl.g"
 
case 284: {
    // nothing to do.
}   break;
 
#line 2797 "./glsl.g"
 
case 285: {
    ast(1) = makeAstNode<DeclarationExpressionAST>
        (type(1), string(2), expression(4));
}   break;
 
#line 2805 "./glsl.g"
 
case 286: {
    ast(1) = makeAstNode<SwitchStatementAST>(expression(3), statement(6));
}   break;
 
#line 2812 "./glsl.g"
 
case 287: {
    ast(1) = makeAstNode<CompoundStatementAST>();
}   break;
 
#line 2819 "./glsl.g"
 
case 288: {
    ast(1) = makeAstNode<CompoundStatementAST>(sym(1).statement_list);
}   break;
 
#line 2826 "./glsl.g"
 
case 289: {
    ast(1) = makeAstNode<CaseLabelStatementAST>(expression(2));
}   break;
 
#line 2833 "./glsl.g"
 
case 290: {
    ast(1) = makeAstNode<CaseLabelStatementAST>();
}   break;
 
#line 2840 "./glsl.g"
 
case 291: {
    ast(1) = makeAstNode<WhileStatementAST>(expression(3), statement(5));
}   break;
 
#line 2847 "./glsl.g"
 
case 292: {
    ast(1) = makeAstNode<DoStatementAST>(statement(2), expression(5));
}   break;
 
#line 2854 "./glsl.g"
 
case 293: {
    ast(1) = makeAstNode<ForStatementAST>(statement(3), sym(4).forstmt.condition, sym(4).forstmt.increment, statement(6));
}   break;
 
#line 2861 "./glsl.g"
 
case 294: {
    // nothing to do.
}   break;
 
#line 2868 "./glsl.g"
 
case 295: {
    // nothing to do.
}   break;
 
#line 2875 "./glsl.g"
 
case 296: {
    // nothing to do.
}   break;
 
#line 2882 "./glsl.g"
 
case 297: {
    // nothing to do.
}   break;
 
#line 2889 "./glsl.g"
 
case 298: {
    sym(1).forstmt.condition = expression(1);
    sym(1).forstmt.increment = nullptr;
}   break;
 
#line 2897 "./glsl.g"
 
case 299: {
    sym(1).forstmt.condition = expression(1);
    sym(1).forstmt.increment = expression(3);
}   break;
 
#line 2905 "./glsl.g"
 
case 300: {
    ast(1) = makeAstNode<JumpStatementAST>(AST::Kind_Continue);
}   break;
 
#line 2912 "./glsl.g"
 
case 301: {
    ast(1) = makeAstNode<JumpStatementAST>(AST::Kind_Break);
}   break;
 
#line 2919 "./glsl.g"
 
case 302: {
    ast(1) = makeAstNode<ReturnStatementAST>();
}   break;
 
#line 2926 "./glsl.g"
 
case 303: {
    ast(1) = makeAstNode<ReturnStatementAST>(expression(2));
}   break;
 
#line 2933 "./glsl.g"
 
case 304: {
    ast(1) = makeAstNode<JumpStatementAST>(AST::Kind_Discard);
}   break;
 
#line 2940 "./glsl.g"
 
case 305: {
    ast(1) = makeAstNode<TranslationUnitAST>(sym(1).declaration_list);
}   break;
 
#line 2947 "./glsl.g"
 
case 306: {
    if (sym(1).declaration) {
        sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration);
    } else {
        sym(1).declaration_list = nullptr;
    }
}   break;
 
#line 2959 "./glsl.g"
 
case 307: {
    if (sym(1).declaration_list && sym(2).declaration) {
        sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
            (sym(1).declaration_list, sym(2).declaration);
    } else if (!sym(1).declaration_list) {
        if (sym(2).declaration) {
            sym(1).declaration_list = makeAstNode< List<DeclarationAST *> >
                (sym(2).declaration);
        } else {
            sym(1).declaration_list = nullptr;
        }
    }
}   break;
 
#line 2976 "./glsl.g"
 
case 308: {
    // nothing to do.
}   break;
 
#line 2983 "./glsl.g"
 
case 309: {
    // nothing to do.
}   break;
 
#line 2990 "./glsl.g"
 
case 310: {
    ast(1) = nullptr;
}   break;
 
#line 2997 "./glsl.g"
 
case 311: {
    function(1)->body = statement(2);
}   break;
 
#line 3004 "./glsl.g"
 
case 312: {
    ast(1) = nullptr;
}   break;
 
#line 3012 "./glsl.g"
 
case 313: {
    ast(1) = ast(2);
}   break;
 
#line 3019 "./glsl.g"
 
case 314: {
    ast(1) = ast(2);
}   break;
 
#line 3025 "./glsl.g"
 
} // end switch
} // end Parser::reduce()