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Diffstat (limited to 'ragel/allocgen.cc')
-rw-r--r-- | ragel/allocgen.cc | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/ragel/allocgen.cc b/ragel/allocgen.cc new file mode 100644 index 00000000..fee37940 --- /dev/null +++ b/ragel/allocgen.cc @@ -0,0 +1,138 @@ +/* + * Copyright 2005-2018 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 "ragel.h" +#include "parsedata.h" +#include "fsmgraph.h" +#include "gendata.h" +#include "inputdata.h" +#include "version.h" + +/* + * Code generators. + */ +#include "bingoto.h" +#include "binbreak.h" +#include "binvar.h" +#include "flatgoto.h" +#include "flatbreak.h" +#include "flatvar.h" +#include "switchgoto.h" +#include "switchbreak.h" +#include "switchvar.h" +#include "gotoloop.h" +#include "gotoexp.h" +#include "ipgoto.h" +#include "asm.h" + +CodeGenData *makeCodeGenAsm( const HostLang *hostLang, const CodeGenArgs &args ) +{ + return new AsmCodeGen( args ); +} + +/* Invoked by the parser when a ragel definition is opened. */ +CodeGenData *makeCodeGen( const HostLang *hostLang, const CodeGenArgs &args ) +{ + FsmGbl *id = args.id; + CodeGenData *codeGen = 0; + BackendFeature feature = hostLang->feature; + if ( args.forceVar ) + feature = VarFeature; + + switch ( args.codeStyle ) { + case GenBinaryLoop: + if ( feature == GotoFeature ) + codeGen = new BinGotoLoop( args ); + else if ( feature == BreakFeature ) + codeGen = new BinBreakLoop( args ); + else + codeGen = new BinVarLoop( args ); + break; + + case GenBinaryExp: + if ( feature == GotoFeature ) + codeGen = new BinGotoExp( args ); + else if ( feature == BreakFeature ) + codeGen = new BinBreakExp( args ); + else + codeGen = new BinVarExp( args ); + break; + + case GenFlatLoop: + if ( feature == GotoFeature ) + codeGen = new FlatGotoLoop( args ); + else if ( feature == BreakFeature ) + codeGen = new FlatBreakLoop( args ); + else + codeGen = new FlatVarLoop( args ); + break; + + case GenFlatExp: + if ( feature == GotoFeature ) + codeGen = new FlatGotoExp( args ); + else if ( feature == BreakFeature ) + codeGen = new FlatBreakExp( args ); + else + codeGen = new FlatVarExp( args ); + break; + case GenSwitchLoop: + if ( feature == GotoFeature ) + codeGen = new SwitchGotoLoop( args ); + else if ( feature == BreakFeature ) + codeGen = new SwitchBreakLoop( args ); + else + codeGen = new SwitchVarLoop( args ); + break; + + case GenSwitchExp: + if ( feature == GotoFeature ) + codeGen = new SwitchGotoExp( args ); + else if ( feature == BreakFeature ) + codeGen = new SwitchBreakExp( args ); + else + codeGen = new SwitchVarExp( args ); + break; + + + case GenGotoLoop: + if ( feature == GotoFeature ) + codeGen = new GotoLoop(args); + else + id->error() << "unsupported lang/style combination" << endp; + break; + case GenGotoExp: + if ( feature == GotoFeature ) + codeGen = new GotoExp(args); + else + id->error() << "unsupported lang/style combination" << endp; + break; + + case GenIpGoto: + if ( feature == GotoFeature ) + codeGen = new IpGoto(args); + else + id->error() << "unsupported lang/style combination" << endp; + break; + } + + return codeGen; +} |