1 files changed, 136 insertions, 0 deletions
diff --git a/src/libfsm/allocgen.cc b/src/libfsm/allocgen.cc
new file mode 100644
index 00000000..02278bfa
--- /dev/null
+++ b/src/libfsm/allocgen.cc
@@ -0,0 +1,136 @@
+/*
+ * 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"
+
+/*
+ * 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;
+}