diff options
Diffstat (limited to 'src/tabgoto.cc')
| -rw-r--r-- | src/tabgoto.cc | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/src/tabgoto.cc b/src/tabgoto.cc deleted file mode 100644 index ca90cb9d..00000000 --- a/src/tabgoto.cc +++ /dev/null @@ -1,330 +0,0 @@ -/* - * Copyright 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. - */ - -#include "tables.h" -#include "binary.h" -#include "flat.h" - -void TabGoto::CONTROL_JUMP( ostream &ret, bool inFinish ) -{ - ret << "goto " << _again << ";"; -} - -void TabGoto::GOTO( ostream &ret, int gotoDest, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK() << vCS() << " = " << gotoDest << ";"; - CONTROL_JUMP( ret, inFinish ); - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::GOTO_EXPR( ostream &ret, GenInlineItem *ilItem, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK() << vCS() << " = " << OPEN_HOST_EXPR(); - INLINE_LIST( ret, ilItem->children, 0, inFinish, false ); - ret << CLOSE_HOST_EXPR() << ";"; - - CONTROL_JUMP( ret, inFinish ); - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::CALL( ostream &ret, int callDest, int targState, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK(); - - if ( red->prePushExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->prePushExpr ); - INLINE_LIST( ret, red->prePushExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - ret << STACK() << "[" << TOP() << "] = " << - vCS() << "; " << TOP() << " += 1;" << vCS() << " = " << - callDest << ";"; - - CONTROL_JUMP( ret, inFinish ); - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::NCALL( ostream &ret, int callDest, int targState, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK(); - - if ( red->prePushExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->prePushExpr ); - INLINE_LIST( ret, red->prePushExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - ret << STACK() << "[" << TOP() << "] = " << vCS() << "; " << - TOP() << " += 1;" << vCS() << " = " << - callDest << "; " << CLOSE_GEN_BLOCK(); -} - -void TabGoto::CALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK(); - - if ( red->prePushExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->prePushExpr ); - INLINE_LIST( ret, red->prePushExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - ret << STACK() << "[" << TOP() << "] = " << - vCS() << "; " << TOP() << " += 1;" << vCS() << - " = " << OPEN_HOST_EXPR(); - INLINE_LIST( ret, ilItem->children, targState, inFinish, false ); - ret << CLOSE_HOST_EXPR() << ";"; - - CONTROL_JUMP( ret, inFinish ); - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::NCALL_EXPR( ostream &ret, GenInlineItem *ilItem, int targState, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK(); - - if ( red->prePushExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->prePushExpr ); - INLINE_LIST( ret, red->prePushExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - ret << STACK() << "[" << TOP() << "] = " << vCS() << "; " << TOP() << " += 1;" << vCS() << - " = " << OPEN_HOST_EXPR(); - INLINE_LIST( ret, ilItem->children, targState, inFinish, false ); - ret << CLOSE_HOST_EXPR() << "; " << CLOSE_GEN_BLOCK(); -} - -void TabGoto::RET( ostream &ret, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK() << TOP() << " -= 1;" << vCS() << " = " << STACK() << "[" << TOP() << "];"; - - if ( red->postPopExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->postPopExpr ); - INLINE_LIST( ret, red->postPopExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - CONTROL_JUMP( ret, inFinish ); - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::NRET( ostream &ret, bool inFinish ) -{ - ret << OPEN_GEN_BLOCK() << TOP() << " -= 1;" << vCS() << " = " << STACK() << "[" << TOP() << "];"; - - if ( red->postPopExpr != 0 ) { - ret << OPEN_HOST_BLOCK( red->postPopExpr ); - INLINE_LIST( ret, red->postPopExpr->inlineList, 0, false, false ); - ret << CLOSE_HOST_BLOCK(); - } - - ret << CLOSE_GEN_BLOCK(); -} - -void TabGoto::BREAK( ostream &ret, int targState, bool csForced ) -{ - ret << - OPEN_GEN_BLOCK() << - P() << " += 1; " << - "goto " << _out << "; " << - CLOSE_GEN_BLOCK(); -} - -void TabGoto::NBREAK( ostream &ret, int targState, bool csForced ) -{ - ret << - OPEN_GEN_BLOCK() << - P() << " += 1; " << - nbreak << " = 1;" << - CLOSE_GEN_BLOCK(); -} - -void TabGoto::writeExec() -{ - out << - " {\n"; - - DECLARE( INT(), ps ); - DECLARE( INT(), cpc ); - DECLARE( INT(), nbreak ); - DECLARE( INT(), klen ); - DECLARE( INDEX( ARR_TYPE( condKeys ) ), ckeys ); - DECLARE( INDEX( ARR_TYPE( eofCondKeys ) ), cekeys ); - DECLARE( UINT(), trans, " = 0" ); - DECLARE( UINT(), cond, " = 0" ); - DECLARE( INDEX( ALPH_TYPE() ), keys ); - DECLARE( INDEX( ARR_TYPE( actions ) ), acts ); - DECLARE( INDEX( ARR_TYPE( indices ) ), inds ); - DECLARE( UINT(), nacts ); - DECLARE( INT(), pop_test ); - DECLARE( INT(), new_recs ); - DECLARE( INT(), alt ); - DECLARE( INT(), ic ); - - out << EMIT_LABEL( _resume ); - - /* Do we break out on no more input. */ - bool eof = redFsm->anyEofActivity() || redFsm->anyNfaStates(); - if ( !noEnd ) { - if ( eof ) { - out << - " if ( " << P() << " == " << PE() << " && " << P() << " != " << vEOF() << " )\n" - " goto " << _out << ";\n"; - } - else { - out << - " if ( " << P() << " == " << PE() << " )\n" - " goto " << _out << ";\n"; - } - } - - NFA_PUSH( vCS() ); - - FROM_STATE_ACTIONS(); - - if ( !noEnd && eof ) { - out << - "if ( " << P() << " == " << vEOF() << " ) {\n"; - - if ( redFsm->anyEofTrans() || redFsm->anyEofActions() ) { - if ( redFsm->anyEofTrans() ) { - out << - " if ( " << ARR_REF( eofTrans ) << "[" << vCS() << "] > 0 ) {\n" - " " << trans << " = " << - CAST(UINT()) << ARR_REF( eofTrans ) << "[" << vCS() << "] - 1;\n" - " }\n"; - } - } - - out << - "}\n" - "else {\n"; - } - - LOCATE_TRANS(); - - if ( !noEnd && eof ) { - out << - "}\n"; - } - - LOCATE_COND(); - - if ( redFsm->anyRegCurStateRef() ) - out << " " << ps << " = " << vCS() << ";\n"; - - string condVar = - red->condSpaceList.length() != 0 ? cond.ref() : trans.ref(); - - out << - " " << vCS() << " = " << CAST(INT()) << ARR_REF( condTargs ) << "[" << condVar << "];\n\n"; - - if ( redFsm->anyRegActions() ) { - out << - " if ( " << ARR_REF( condActions ) << "[" << condVar << "] != 0 ) {\n" - "\n"; - - if ( redFsm->anyRegNbreak() ) - out << " " << nbreak << " = 0;\n"; - - REG_ACTIONS( condVar ); - - if ( redFsm->anyRegNbreak() ) { - out << - " if ( " << nbreak << " == 1 )\n" - " goto " << _out << ";\n"; - } - - out << "}\n"; - } - - out << "\n" << EMIT_LABEL( _again ); - - if ( !noEnd && eof ) { - out << - " if ( " << P() << " == " << vEOF() << " ) {\n" - " if ( " << vCS() << " >= " << FIRST_FINAL_STATE() << " )\n" - " goto " << _out << ";\n" - " }\n" - " else {\n"; - } - - TO_STATE_ACTIONS(); - - if ( redFsm->errState != 0 ) { - out << - " if ( " << vCS() << " != " << redFsm->errState->id << " ) {\n"; - } - - out << - " " << P() << " += 1;\n" - " goto " << _resume << ";\n"; - - if ( redFsm->errState != 0 ) { - out << - " }\n"; - } - - if ( !noEnd && eof ) { - out << - " }\n"; - } - - if ( redFsm->anyNfaStates() ) { - out << - " if ( nfa_len == 0 )\n" - " goto " << _out << ";\n" - "\n" - " nfa_count += 1;\n" - " nfa_len -= 1;\n" - " " << P() << " = nfa_bp[nfa_len].p;\n" - ; - - if ( redFsm->bAnyNfaPops ) { - NFA_FROM_STATE_ACTION_EXEC(); - - NFA_POP_TEST_EXEC(); - - out << - " if ( " << pop_test << " )\n" - " " << vCS() << " = nfa_bp[nfa_len].state;\n" - " else\n" - " " << vCS() << " = " << ERROR_STATE() << ";\n"; - } - else { - out << - " " << vCS() << " = nfa_bp[nfa_len].state;\n"; - - } - - NFA_POST_POP(); - - out << "goto " << _resume << ";\n"; - } - - out << EMIT_LABEL( _out ); - - out << " }\n"; -} - |