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94 lines
3.1 KiB
C
94 lines
3.1 KiB
C
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//
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// Copyright (C) 2013 LunarG, Inc.
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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//
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// Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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//
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// Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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//
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// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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//
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// This holds context specific to the GLSL scanner, which
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// sits between the preprocessor scanner and parser.
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//
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#pragma once
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#include "ParseHelper.h"
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namespace glslang {
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class TPpContext;
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class TPpToken;
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class TParserToken;
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class TScanContext {
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public:
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explicit TScanContext(TParseContextBase& pc) :
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parseContext(pc),
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afterType(false), afterStruct(false),
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field(false), afterBuffer(false) { }
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virtual ~TScanContext() { }
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static void fillInKeywordMap();
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static void deleteKeywordMap();
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int tokenize(TPpContext*, TParserToken&);
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protected:
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TScanContext(TScanContext&);
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TScanContext& operator=(TScanContext&);
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int tokenizeIdentifier();
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int identifierOrType();
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int reservedWord();
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int identifierOrReserved(bool reserved);
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int es30ReservedFromGLSL(int version);
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int nonreservedKeyword(int esVersion, int nonEsVersion);
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int precisionKeyword();
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int matNxM();
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int dMat();
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int firstGenerationImage(bool inEs310);
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int secondGenerationImage();
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TParseContextBase& parseContext;
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bool afterType; // true if we've recognized a type, so can only be looking for an identifier
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bool afterStruct; // true if we've recognized the STRUCT keyword, so can only be looking for an identifier
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bool field; // true if we're on a field, right after a '.'
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bool afterBuffer; // true if we've recognized the BUFFER keyword
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TSourceLoc loc;
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TParserToken* parserToken;
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TPpToken* ppToken;
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const char* tokenText;
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int keyword;
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};
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} // end namespace glslang
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