ScanContext.h

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//
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#ifndef _MACHINE_INDEPENDENT_SCAN_CONTEXT_H
#define _MACHINE_INDEPENDENT_SCAN_CONTEXT_H

//
// This holds context specific to the GLSL scanner, which
// sits between the preprocessor scanner and parser.
//

#pragma once

#include "ParseHelper.h"

namespace glslang {

class TPpContext;
class TPpToken;
class TParserToken;

class TScanContext {
public:
 explicit TScanContext(TParseContextBase& pc) :
 _parseContext(pc),
 afterType(false), afterStruct(false),
 field(false) { }
 virtual ~TScanContext() { }

 static void fillInKeywordMap();
 static void deleteKeywordMap();

 int tokenize(TPpContext*, TParserToken&);

protected:
 TScanContext(TScanContext&);
 TScanContext& operator=(TScanContext&);

 int tokenizeIdentifier();
 int identifierOrType();
 int reservedWord();
 int identifierOrReserved(bool reserved);
 int es30ReservedFromGLSL(int version);
 int nonreservedKeyword(int esVersion, int nonEsVersion);
 int precisionKeyword();
 int matNxM();
 int dMat();
 int firstGenerationImage(bool inEs310);
 int secondGenerationImage();

 TParseContextBase& _parseContext;
 bool afterType; // true if we've recognized a type, so can only be looking for an identifier
 bool afterStruct; // true if we've recognized the STRUCT keyword, so can only be looking for an identifier
 bool field; // true if we're on a field, right after a '.'
 TSourceLoc loc;
 TParserToken* parserToken;
 TPpToken* ppToken;

 const char* tokenText;
 int keyword;
};

} // end namespace glslang

#endif