return "if (true) ";
}
-
-/*
- * Java Specific
- */
-
-string JavaCodeGen::PTR_CONST()
-{
- /* Not used in Java code. */
- assert( false );
- return "final";
-}
-
-std::ostream &JavaCodeGen::OPEN_ARRAY( string type, string name )
-{
- out << "static final " << type << "[] " << name << " = {\n";
- return out;
-}
-
-std::ostream &JavaCodeGen::CLOSE_ARRAY()
-{
- return out << "};\n";
-}
-
-std::ostream &JavaCodeGen::STATIC_VAR( string type, string name )
-{
- out << "static final " << type << " " << name;
- return out;
-}
-
-string JavaCodeGen::UINT( )
-{
- /* Not used. */
- assert( false );
- return "long";
-}
-
-string JavaCodeGen::ARR_OFF( string ptr, string offset )
-{
- return ptr + " + " + offset;
-}
-
-string JavaCodeGen::CAST( string type )
-{
- return "(" + type + ")";
-}
-
-string JavaCodeGen::NULL_ITEM()
-{
- /* In java we use integers instead of pointers. */
- return "-1";
-}
-
-string JavaCodeGen::POINTER()
-{
- /* Not used. */
- assert( false );
- return " *";
-}
-
-std::ostream &JavaCodeGen::SWITCH_DEFAULT()
-{
- return out;
-}
-
-string JavaCodeGen::GET_KEY()
-{
- ostringstream ret;
- if ( getKeyExpr != 0 ) {
- /* Emit the user supplied method of retrieving the key. */
- ret << "(";
- INLINE_LIST( ret, getKeyExpr, 0, false );
- ret << ")";
- }
- else {
- /* Expression for retrieving the key, use simple dereference. */
- ret << "data[" << P() << "]";
- }
- return ret.str();
-}
-
-string JavaCodeGen::CTRL_FLOW()
-{
- return "if (true) ";
-}
-
/* Generate the code for an fsm. Assumes parseData is set up properly. Called
* by parser code. */
void FsmCodeGen::prepareMachine()
+++ /dev/null
-/*
- * Copyright 2006 Adrian Thurston <thurston@cs.queensu.ca>
- */
-
-/* This file is part of Ragel.
- *
- * Ragel 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.
- *
- * Ragel 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 Ragel; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "javacodegen.h"
-#include "rlcodegen.h"
-#include "tabcodegen.h"
-#include "redfsm.h"
-#include "gendata.h"
-
-void JavaTabCodeGen::GOTO( ostream &ret, int gotoDest, bool inFinish )
-{
- ret << "{" << CS() << " = " << gotoDest << "; " <<
- CTRL_FLOW() << "break _again;}";
-}
-
-void JavaTabCodeGen::GOTO_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish )
-{
- ret << "{" << CS() << " = (";
- INLINE_LIST( ret, ilItem->children, 0, inFinish );
- ret << "); " << CTRL_FLOW() << "break _again;}";
-}
-
-void JavaTabCodeGen::CALL( ostream &ret, int callDest, int targState, bool inFinish )
-{
- ret << "{" << STACK() << "[" << TOP() << "++] = " << CS() << "; " << CS() << " = " <<
- callDest << "; " << CTRL_FLOW() << "break _again;}";
-}
-
-void JavaTabCodeGen::CALL_EXPR( ostream &ret, InlineItem *ilItem, int targState, bool inFinish )
-{
- ret << "{" << STACK() << "[" << TOP() << "++] = " << CS() << "; " << CS() << " = (";
- INLINE_LIST( ret, ilItem->children, targState, inFinish );
- ret << "); " << CTRL_FLOW() << "break _again;}";
-}
-
-void JavaTabCodeGen::RET( ostream &ret, bool inFinish )
-{
- ret << "{" << CS() << " = " << STACK() << "[--" << TOP()
- << "]; " << CTRL_FLOW() << "break _again;}";
-}
-
-void JavaTabCodeGen::BREAK( ostream &ret, int targState )
-{
- ret << CTRL_FLOW() << "break _resume;";
-}
-
-void JavaTabCodeGen::COND_TRANSLATE()
-{
- out <<
- " _widec = " << GET_KEY() << ";\n"
- " _keys = " << CO() << "[" << CS() << "]*2\n;"
- " _klen = " << CL() << "[" << CS() << "];\n"
- " if ( _klen > 0 ) {\n"
- " int _lower = _keys\n;"
- " int _mid;\n"
- " int _upper = _keys + (_klen<<1) - 2;\n"
- " while (true) {\n"
- " if ( _upper < _lower )\n"
- " break;\n"
- "\n"
- " _mid = _lower + (((_upper-_lower) >> 1) & ~1);\n"
- " if ( " << GET_WIDE_KEY() << " < " << CK() << "[_mid] )\n"
- " _upper = _mid - 2;\n"
- " else if ( " << GET_WIDE_KEY() << " > " << CK() << "[_mid] )\n"
- " _lower = _mid + 2;\n"
- " else {\n"
- " switch ( " << C() << "[" << CO() << "[" << CS() << "]"
- " + ((_mid - _keys)>>1)] ) {\n"
- ;
-
- for ( CondSpaceList::Iter csi = condSpaceList; csi.lte(); csi++ ) {
- CondSpace *condSpace = csi;
- out << " case " << condSpace->condSpaceId << ": {\n";
- out << TABS(2) << "_widec = " << KEY(condSpace->baseKey) <<
- " + (" << GET_KEY() << " - " << KEY(keyOps->minKey) << ");\n";
-
- for ( CondSet::Iter csi = condSpace->condSet; csi.lte(); csi++ ) {
- out << TABS(2) << "if ( ";
- CONDITION( out, *csi );
- Size condValOffset = ((1 << csi.pos()) * keyOps->alphSize());
- out << " ) _widec += " << condValOffset << ";\n";
- }
-
- out <<
- " break;\n"
- " }\n";
- }
-
- out <<
- " }\n"
- " break;\n"
- " }\n"
- " }\n"
- " }\n"
- "\n";
-}
-
-
-void JavaTabCodeGen::LOCATE_TRANS()
-{
- out <<
- " _match: do {\n"
- " _keys = " << KO() << "[" << CS() << "]" << ";\n"
- " _trans = " << IO() << "[" << CS() << "];\n"
- " _klen = " << SL() << "[" << CS() << "];\n"
- " if ( _klen > 0 ) {\n"
- " int _lower = _keys;\n"
- " int _mid;\n"
- " int _upper = _keys + _klen - 1;\n"
- " while (true) {\n"
- " if ( _upper < _lower )\n"
- " break;\n"
- "\n"
- " _mid = _lower + ((_upper-_lower) >> 1);\n"
- " if ( " << GET_WIDE_KEY() << " < " << K() << "[_mid] )\n"
- " _upper = _mid - 1;\n"
- " else if ( " << GET_WIDE_KEY() << " > " << K() << "[_mid] )\n"
- " _lower = _mid + 1;\n"
- " else {\n"
- " _trans += (_mid - _keys);\n"
- " break _match;\n"
- " }\n"
- " }\n"
- " _keys += _klen;\n"
- " _trans += _klen;\n"
- " }\n"
- "\n"
- " _klen = " << RL() << "[" << CS() << "];\n"
- " if ( _klen > 0 ) {\n"
- " int _lower = _keys;\n"
- " int _mid;\n"
- " int _upper = _keys + (_klen<<1) - 2;\n"
- " while (true) {\n"
- " if ( _upper < _lower )\n"
- " break;\n"
- "\n"
- " _mid = _lower + (((_upper-_lower) >> 1) & ~1);\n"
- " if ( " << GET_WIDE_KEY() << " < " << K() << "[_mid] )\n"
- " _upper = _mid - 2;\n"
- " else if ( " << GET_WIDE_KEY() << " > " << K() << "[_mid+1] )\n"
- " _lower = _mid + 2;\n"
- " else {\n"
- " _trans += ((_mid - _keys)>>1);\n"
- " break _match;\n"
- " }\n"
- " }\n"
- " _trans += _klen;\n"
- " }\n"
- " } while (false);\n"
- "\n";
-}
-
-void JavaTabCodeGen::writeOutExec()
-{
- out <<
- " {\n"
- " int _klen";
-
- if ( redFsm->anyRegCurStateRef() )
- out << ", _ps";
-
- out <<
- ";\n"
- " int _trans;\n";
-
- if ( redFsm->anyConditions() )
- out << " int _widec;\n";
-
- if ( redFsm->anyToStateActions() || redFsm->anyRegActions() ||
- redFsm->anyFromStateActions() )
- {
- out <<
- " int _acts;\n"
- " int _nacts;\n";
- }
-
- out <<
- " int _keys;\n"
- "\n";
-
- if ( hasEnd )
- out << " if ( " << P() << " != " << PE() << " ) {\n";
-
- out << " _resume: while ( true ) {\n";
-
- out << " _again: do {\n";
-
- if ( redFsm->errState != 0 ) {
- out <<
- " if ( " << CS() << " == " << redFsm->errState->id << " )\n"
- " break _resume;\n";
- }
-
- if ( redFsm->anyFromStateActions() ) {
- out <<
- " _acts = " << FSA() << "[" << CS() << "]" << ";\n"
- " _nacts = " << CAST("int") << " " << A() << "[_acts++];\n"
- " while ( _nacts-- > 0 ) {\n"
- " switch ( " << A() << "[_acts++] ) {\n";
- FROM_STATE_ACTION_SWITCH();
- SWITCH_DEFAULT() <<
- " }\n"
- " }\n"
- "\n";
- }
-
- if ( redFsm->anyConditions() )
- COND_TRANSLATE();
-
- LOCATE_TRANS();
-
- if ( redFsm->anyRegCurStateRef() )
- out << " _ps = " << CS() << ";\n";
-
- if ( useIndicies )
- out << " _trans = " << I() << "[_trans];\n";
-
- out <<
- " " << CS() << " = " << TT() << "[_trans];\n"
- "\n";
-
- if ( redFsm->anyRegActions() ) {
- out <<
- " if ( " << TA() << "[_trans] == 0 )\n"
- " break _again;\n"
- "\n"
- " _acts = " << TA() << "[_trans]" << ";\n"
- " _nacts = " << CAST("int") << " " << A() << "[_acts++];\n"
- " while ( _nacts-- > 0 )\n {\n"
- " switch ( " << A() << "[_acts++] )\n"
- " {\n";
- ACTION_SWITCH();
- SWITCH_DEFAULT() <<
- " }\n"
- " }\n"
- "\n";
- }
-
- /* Again loop, functions as again label. */
- out << " } while (false);\n";
-
- if ( redFsm->anyToStateActions() ) {
- out <<
- " _acts = " << TSA() << "[" << CS() << "]" << ";\n"
- " _nacts = " << CAST("int") << " " << A() << "[_acts++];\n"
- " while ( _nacts-- > 0 ) {\n"
- " switch ( " << A() << "[_acts++] ) {\n";
- TO_STATE_ACTION_SWITCH();
- SWITCH_DEFAULT() <<
- " }\n"
- " }\n"
- "\n";
- }
-
- if ( hasEnd ) {
- out <<
- " if ( ++" << P() << " == " << PE() << " )\n"
- " break _resume;\n";
- }
- else {
- out <<
- " " << P() << " += 1;\n";
- }
-
- /* Close the resume loop. */
- out << " }\n";
-
- /* The if guarding on empty string. */
- if ( hasEnd )
- out << " }\n";
-
- /* The execute block. */
- out << " }\n";
-}
-
-void JavaTabCodeGen::writeOutEOF()
-{
- if ( redFsm->anyEofActions() ) {
- out <<
- " int _acts = " << EA() << "[" << CS() << "]" << ";\n"
- " int _nacts = " << CAST("int") << " " << A() << "[_acts++];\n"
- " while ( _nacts-- > 0 ) {\n"
- " switch ( " << A() << "[_acts++] ) {\n";
- EOF_ACTION_SWITCH();
- SWITCH_DEFAULT() <<
- " }\n"
- " }\n"
- "\n";
- }
-}
-
+++ /dev/null
-/*
- * Copyright 2006 Adrian Thurston <thurston@cs.queensu.ca>
- */
-
-/* This file is part of Ragel.
- *
- * Ragel 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.
- *
- * Ragel 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 Ragel; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _JAVACODEGEN_H
-#define _JAVACODEGEN_H
-
-#include "tabcodegen.h"
-
-/*
- * JavaTabCodeGen
- */
-struct JavaTabCodeGen
- : public TabCodeGen, public JavaCodeGen
-{
- JavaTabCodeGen( ostream &out ) :
- FsmCodeGen(out), TabCodeGen(out), JavaCodeGen(out) {}
-
- void BREAK( ostream &ret, int targState );
- void GOTO( ostream &ret, int gotoDest, bool inFinish );
- void GOTO_EXPR( ostream &ret, InlineItem *ilItem, bool inFinish );
- void CALL( ostream &ret, int callDest, int targState, bool inFinish );
- void CALL_EXPR( ostream &ret, InlineItem *ilItem, int targState, bool inFinish );
- void RET( ostream &ret, bool inFinish );
-
- void COND_TRANSLATE();
- void LOCATE_TRANS();
- virtual void writeOutExec();
- virtual void writeOutEOF();
-};
-
-
-#endif
projects / external / ragel.git / commitdiff