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Diffstat (limited to 'libfsm/switch.h')
-rw-r--r-- | libfsm/switch.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/libfsm/switch.h b/libfsm/switch.h new file mode 100644 index 00000000..7f23778b --- /dev/null +++ b/libfsm/switch.h @@ -0,0 +1,106 @@ +/* + * Copyright 2001-2018 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 _C_SWITCH_H +#define _C_SWITCH_H + +#include <iostream> +#include "codegen.h" +#include "tables.h" + +/* Forwards. */ +struct CodeGenData; +struct NameInst; +struct RedTransAp; +struct RedStateAp; + +class Switch + : public virtual Tables +{ +protected: + enum Type { + Loop = 1, Exp + }; + +public: + Switch( const CodeGenArgs &args, Type type ) + : + Tables( args ), + type(type) + {} + + std::ostream &TRANS_GOTO( int off, RedTransAp *trans ); + void RANGE_B_SEARCH( RedStateAp *state, Key lower, Key upper, int low, int high ); + void SINGLE_SWITCH( RedStateAp *st ); + void DEFAULT( RedStateAp *st ); + void NOT_SINGLE( RedStateAp *st ); + void LOCATE_TRANS(); + +protected: + Type type; + int transBase; + + std::ostream &COND_KEYS_v1(); + std::ostream &COND_SPACES_v1(); + std::ostream &INDICES(); + std::ostream &INDEX_OFFSETS(); + std::ostream &SINGLE_LENS(); + std::ostream &RANGE_LENS(); + std::ostream &TRANS_TARGS_WI(); + std::ostream &ACTIONS_ARRAY(); + + void taKeyOffsets(); + void taSingleLens(); + void taRangeLens(); + void taIndexOffsets(); + void taIndices(); + void taTransCondSpacesWi(); + void taTransOffsetsWi(); + void taTransLengthsWi(); + void taTransCondSpaces(); + void taTransOffsets(); + void taTransLengths(); + void taCondTargs(); + void taCondActions(); + void taToStateActions(); + void taFromStateActions(); + void taEofTrans(); + void taEofConds(); + void taEofActions(); + void taKeys(); + void taActions(); + void taCondKeys(); + void taNfaTargs(); + void taNfaOffsets(); + void taNfaPushActions(); + void taNfaPopTrans(); + + void setKeyType(); + + void setTableState( TableArray::State ); + + virtual void writeData(); + virtual void tableDataPass(); + virtual void genAnalysis(); +}; + +#endif |