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Diffstat (limited to 'src/parser.h')
| -rw-r--r-- | src/parser.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/src/parser.h b/src/parser.h new file mode 100644 index 0000000..c4d02fe --- /dev/null +++ b/src/parser.h @@ -0,0 +1,150 @@ +/* + * Copyright 2013 Adrian Thurston <thurston@complang.org> + */ + +/* This file is part of Colm. + * + * Colm is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * Colm is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Colm; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#ifndef PARSER_H +#define PARSER_H + +#include <iostream> +#include "avltree.h" +#include "parsedata.h" +#include "parser.h" + +#define PROPERTY_REDUCE_FIRST 0x1 + +struct BaseParser +{ + BaseParser( Compiler *pd ) + : pd(pd), enterRl(false) + {} + + virtual ~BaseParser() {} + + Compiler *pd; + + RegionSetVect regionStack; + NamespaceVect namespaceStack; + ContextStack contextStack; + ObjectDef *curLocalFrame; + ObjNameScope *curScope; + + bool enterRl; + + bool insideRegion() + { return regionStack.length() > 0; } + + Context *curContext() + { return contextStack.length() == 0 ? 0 : contextStack.top(); } + + Namespace *curNspace() + { return namespaceStack.top(); } + + /* Lexical feedback. */ + + void init(); + void addRegularDef( const InputLoc &loc, Namespace *nspace, + const String &name, LexJoin *join ); + TokenRegion *createRegion( const InputLoc &loc, RegionImpl *impl ); + Namespace *createRootNamespace(); + Namespace *createNamespace( const InputLoc &loc, const String &name ); + void pushRegionSet( const InputLoc &loc ); + void popRegionSet(); + void addProduction( const InputLoc &loc, const String &name, + ProdElList *prodElList, bool commit, CodeBlock *redBlock, LangEl *predOf ); + void addArgvList(); + LexJoin *literalJoin( const InputLoc &loc, const String &data ); + + void defineToken( const InputLoc &loc, String name, LexJoin *join, ObjectDef *objectDef, + CodeBlock *transBlock, bool ignore, bool noPreIgnore, bool noPostIgnore ); + + void zeroDef( const InputLoc &loc, const String &name ); + void literalDef( const InputLoc &loc, const String &data, + bool noPreIgnore, bool noPostIgnore ); + + ObjectDef *blockOpen(); + void blockClose(); + void functionDef( StmtList *stmtList, ObjectDef *localFrame, + ParameterList *paramList, TypeRef *typeRef, const String &name, bool exprt ); + void iterDef( StmtList *stmtList, ObjectDef *localFrame, + ParameterList *paramList, const String &name ); + LangStmt *globalDef( ObjectField *objField, LangExpr *expr, LangStmt::Type assignType ); + void cflDef( NtDef *ntDef, ObjectDef *objectDef, LelDefList *defList ); + ReOrBlock *lexRegularExprData( ReOrBlock *reOrBlock, ReOrItem *reOrItem ); + + int lexFactorRepNum( const InputLoc &loc, const String &data ); + LexFactor *lexRlFactorName( const String &data, const InputLoc &loc ); + LexFactorAug *lexFactorLabel( const InputLoc &loc, const String &data, + LexFactorAug *factorAug ); + LexJoin *lexOptJoin( LexJoin *join, LexJoin *context ); + LangExpr *send( const InputLoc &loc, LangVarRef *varRef, ConsItemList *list, bool eof ); + LangExpr *parseCmd( const InputLoc &loc, bool stop, ObjectField *objField, + TypeRef *typeRef, FieldInitVect *fieldInitVect, ConsItemList *list ); + PatternItemList *consPatternEl( LangVarRef *varRef, PatternItemList *list ); + PatternItemList *patternElNamed( const InputLoc &loc, LangVarRef *varRef, + NamespaceQual *nspaceQual, const String &data, RepeatType repeatType ); + PatternItemList *patternElType( const InputLoc &loc, LangVarRef *varRef, + NamespaceQual *nspaceQual, const String &data, RepeatType repeatType ); + PatternItemList *patListConcat( PatternItemList *list1, PatternItemList *list2 ); + ConsItemList *consListConcat( ConsItemList *list1, ConsItemList *list2 ); + LangStmt *forScope( const InputLoc &loc, const String &data, + ObjNameScope *scope, TypeRef *typeRef, IterCall *iterCall, StmtList *stmtList ); + void preEof( const InputLoc &loc, StmtList *stmtList, ObjectDef *localFrame ); + + ProdEl *prodElName( const InputLoc &loc, const String &data, + NamespaceQual *nspaceQual, ObjectField *objField, RepeatType repeatType, + bool commit ); + ProdEl *prodElLiteral( const InputLoc &loc, const String &data, + NamespaceQual *nspaceQual, ObjectField *objField, RepeatType repeatType, + bool commit ); + ConsItemList *consElLiteral( const InputLoc &loc, TypeRef *consTypeRef, + const String &data, NamespaceQual *nspaceQual ); + Production *production( const InputLoc &loc, ProdElList *prodElList, + String name, bool commit, CodeBlock *codeBlock, LangEl *predOf ); + void objVarDef( ObjectDef *objectDef, ObjectField *objField ); + LelDefList *prodAppend( LelDefList *defList, Production *definition ); + + LangExpr *construct( const InputLoc &loc, ObjectField *objField, + ConsItemList *list, TypeRef *typeRef, FieldInitVect *fieldInitVect ); + LangExpr *match( const InputLoc &loc, LangVarRef *varRef, + PatternItemList *list ); + LangStmt *varDef( ObjectField *objField, + LangExpr *expr, LangStmt::Type assignType ); + LangStmt *exportStmt( ObjectField *objField, LangStmt::Type assignType, LangExpr *expr ); + + LangExpr *require( const InputLoc &loc, LangVarRef *varRef, PatternItemList *list ); + void contextVarDef( const InputLoc &loc, ObjectField *objField ); + void contextHead( const InputLoc &loc, const String &data ); + StmtList *appendStatement( StmtList *stmtList, LangStmt *stmt ); + ParameterList *appendParam( ParameterList *paramList, ObjectField *objField ); + ObjectField *addParam( const InputLoc &loc, TypeRef *typeRef, const String &name ); + PredDecl *predTokenName( const InputLoc &loc, NamespaceQual *qual, const String &data ); + PredDecl *predTokenLit( const InputLoc &loc, const String &data, + NamespaceQual *nspaceQual ); + void alias( const InputLoc &loc, const String &data, TypeRef *typeRef ); + void precedenceStmt( PredType predType, PredDeclList *predDeclList ); + ProdElList *appendProdEl( ProdElList *prodElList, ProdEl *prodEl ); + + void pushScope(); + void popScope(); + + virtual void go( long activeRealm ) = 0; +}; + +#endif |