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/*
* Copyright 2014-2018 Adrian Thurston <thurston@colm.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _ASM_H
#define _ASM_H
#include <iostream>
#include <string>
#include <iomanip>
#include <stdio.h>
#include "common.h"
#include "gendata.h"
#include "ragel.h"
using std::string;
using std::ostream;
/* Integer array line length. */
#define IALL_INTEGRAL 8
#define IALL_STRING 128
/* Forwards. */
struct RedFsmAp;
struct RedStateAp;
struct CodeGenData;
struct GenAction;
struct NameInst;
struct GenInlineItem;
struct GenInlineList;
struct RedAction;
struct LongestMatch;
struct LongestMatchPart;
class AsmCodeGen;
struct RedTransAp;
struct RedStateAp;
struct GenStateCond;
string itoa( int i );
/*
* class AsmCodeGen
*/
class AsmCodeGen : public CodeGenData
{
public:
AsmCodeGen( const CodeGenArgs &args );
virtual ~AsmCodeGen() {}
virtual void writeInit();
virtual void writeStart();
virtual void writeFirstFinal();
virtual void writeError();
virtual void statsSummary() {}
virtual void genAnalysis();
protected:
string FSM_NAME();
string START_STATE_ID();
string KEY( Key key );
string COND_KEY( CondKey key );
string LDIR_PATH( char *path );
virtual void ACTION( ostream &ret, GenAction *action, int targState,
bool inFinish, bool csForced );
void CONDITION( ostream &ret, GenAction *condition );
void NFA_CONDITION( ostream &ret, GenAction *condition, bool last );
string ALPH_TYPE();
bool isAlphTypeSigned();
string GET_KEY();
string P();
string PE();
string vEOF();
string NBREAK();
string ACCESS();
string vCS();
string STACK();
string TOP();
string TOKSTART();
string TOKEND();
string ACT();
string NFA_STACK();
string NFA_TOP();
string NFA_SZ();
string DATA_PREFIX();
string PM() { return "_" + DATA_PREFIX() + "partition_map"; }
string C() { return "_" + DATA_PREFIX() + "cond_spaces"; }
string CK() { return "_" + DATA_PREFIX() + "cond_keys"; }
string K() { return "_" + DATA_PREFIX() + "trans_keys"; }
string I() { return "_" + DATA_PREFIX() + "indices"; }
string CO() { return "_" + DATA_PREFIX() + "cond_offsets"; }
string KO() { return "_" + DATA_PREFIX() + "key_offsets"; }
string IO() { return "_" + DATA_PREFIX() + "index_offsets"; }
string CL() { return "_" + DATA_PREFIX() + "cond_lengths"; }
string SL() { return "_" + DATA_PREFIX() + "single_lengths"; }
string RL() { return "_" + DATA_PREFIX() + "range_lengths"; }
string A() { return "_" + DATA_PREFIX() + "actions"; }
string TA() { return "_" + DATA_PREFIX() + "trans_actions"; }
string TT() { return "_" + DATA_PREFIX() + "trans_targs"; }
string TSA() { return "_" + DATA_PREFIX() + "to_state_actions"; }
string FSA() { return "_" + DATA_PREFIX() + "from_state_actions"; }
string EA() { return "_" + DATA_PREFIX() + "eof_actions"; }
string ET() { return "_" + DATA_PREFIX() + "eof_trans"; }
string SP() { return "_" + DATA_PREFIX() + "key_spans"; }
string CSP() { return "_" + DATA_PREFIX() + "cond_key_spans"; }
string START() { return DATA_PREFIX() + "start"; }
string ERROR() { return DATA_PREFIX() + "error"; }
string FIRST_FINAL() { return DATA_PREFIX() + "first_final"; }
string CTXDATA() { return DATA_PREFIX() + "ctxdata"; }
string LABEL( const char *type, long i );
string LABEL( const char *name );
void INLINE_LIST( ostream &ret, GenInlineList *inlineList,
int targState, bool inFinish, bool csForced );
void EXEC( ostream &ret, GenInlineItem *item, int targState, int inFinish );
void LM_SWITCH( ostream &ret, GenInlineItem *item, int targState,
int inFinish, bool csForced );
void SET_ACT( ostream &ret, GenInlineItem *item );
void INIT_TOKSTART( ostream &ret, GenInlineItem *item );
void INIT_ACT( ostream &ret, GenInlineItem *item );
void SET_TOKSTART( ostream &ret, GenInlineItem *item );
void SET_TOKEND( ostream &ret, GenInlineItem *item );
void GET_TOKEND( ostream &ret, GenInlineItem *item );
void STATIC_CONST_INT( const string &name, const string &val );
void STATE_IDS();
string ERROR_STATE();
string FIRST_FINAL_STATE();
bool outLabelUsed;
bool testEofUsed;
bool againLabelUsed;
long nextLmSwitchLabel;
bool stackCS;
void NBREAK( ostream &ret, int targState, bool csForced );
void NCALL( ostream &ret, int callDest, int targState, bool inFinish );
void NCALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish );
void NRET( ostream &ret, bool inFinish );
void HOST_STMT( ostream &ret, GenInlineItem *item,
int targState, bool inFinish, bool csForced );
void HOST_EXPR( ostream &ret, GenInlineItem *item,
int targState, bool inFinish, bool csForced );
void HOST_TEXT( ostream &ret, GenInlineItem *item,
int targState, bool inFinish, bool csForced );
void GEN_STMT( ostream &ret, GenInlineItem *item,
int targState, bool inFinish, bool csForced );
void GEN_EXPR( ostream &ret, GenInlineItem *item,
int targState, bool inFinish, bool csForced );
public:
virtual string NULL_ITEM();
virtual string POINTER();
virtual ostream &SWITCH_DEFAULT();
virtual ostream &OPEN_ARRAY( string type, string name );
virtual ostream &CLOSE_ARRAY();
virtual ostream &STATIC_VAR( string type, string name );
virtual string ARR_OFF( string ptr, string offset );
virtual string CAST( string type );
virtual string UINT();
virtual string PTR_CONST();
virtual string PTR_CONST_END();
virtual string CTRL_FLOW();
virtual void writeExports();
unsigned int TO_STATE_ACTION( RedStateAp *state );
unsigned int FROM_STATE_ACTION( RedStateAp *state );
unsigned int EOF_ACTION( RedStateAp *state );
void COND_TRANSLATE( GenStateCond *stateCond );
void STATE_CONDS( RedStateAp *state, bool genDefault );
std::ostream &EXIT_STATES();
std::string TRANS_GOTO_TARG( RedTransAp *trans );
std::string TRANS_GOTO_TARG( RedCondPair *pair );
std::ostream &TRANS_GOTO( RedTransAp *trans );
std::ostream &AGAIN_CASES();
std::ostream &FINISH_CASES();
std::ostream &ENTRY_CASES();
void GOTO( ostream &ret, int gotoDest, bool inFinish );
void CALL( ostream &ret, int callDest, int targState, bool inFinish );
void NEXT( ostream &ret, int nextDest, bool inFinish );
void GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
void NEXT_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish );
void CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish );
void RET( ostream &ret, bool inFinish );
void CURS( ostream &ret, bool inFinish );
void TARGS( ostream &ret, bool inFinish, int targState );
void BREAK( ostream &ret, int targState, bool csForced );
void LM_EXEC( ostream &ret, GenInlineItem *item, int targState, int inFinish );
virtual void writeData();
virtual void writeExec();
bool useAgainLabel();
void NFA_PUSH( RedStateAp *state );
bool IN_TRANS_ACTIONS( RedStateAp *state );
void STATE_GOTOS();
void emitSingleIfElseIf( RedStateAp *state );
void emitSingleJumpTable( RedStateAp *state, std::string def );
void emitRangeBSearch( RedStateAp *state, int low, int high );
void emitCharClassIfElseIf( RedStateAp *state );
void emitCharClassJumpTable( RedStateAp *state, std::string def );
/* Set up labelNeeded flag for each state. */
void setLabelsNeeded( RedCondPair *pair );
void setLabelsNeeded( GenInlineList *inlineList );
void setLabelsNeeded();
void setNfaIds();
void genOutputLineDirective( ostream &out ) {}
void genLineDirective( ostream &out, int line, const char *file ) {}
};
#endif
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