(refs #7250) CHR rules modularization (first working version)

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / internal / parsing / parser / SCLLexer.flex

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/parser/SCLLexer.flex b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/parser/SCLLexer.flex
index e673b294b94b5e8170e6960778a0176b1c37dcb9..0f45c2511b297a3e6575c7a953c6cd5e9f752c34 100644 (file)
--- a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/parser/SCLLexer.flex
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/internal/parsing/parser/SCLLexer.flex
@@ -1,5 +1,6 @@
 package org.simantics.scl.compiler.internal.parsing.parser;
 
+import org.simantics.scl.compiler.compilation.CompilationContext;
 import org.simantics.scl.compiler.internal.parsing.Token;
 import org.simantics.scl.compiler.errors.Locations;
 import org.simantics.scl.compiler.internal.parsing.exceptions.SCLSyntaxErrorException;
@@ -27,6 +28,7 @@ import gnu.trove.list.array.TIntArrayList;
     TIntArrayList stateStack = new TIntArrayList(2);
 
     StringBuffer string = new StringBuffer();
+    CompilationContext context;
     
     private Token sym(int id) {
         return new Token(id, yychar, yychar+yylength(), yytext());
@@ -34,6 +36,12 @@ import gnu.trove.list.array.TIntArrayList;
     private Token sym(int id, String text) {
         return new Token(id, yychar, yychar+yylength(), text);
     }
+    public void setCompilationContext(CompilationContext context) {
+        this.context = context;
+    }
+    public boolean supportCHR() {
+        return context.header == null ? false : context.header.chr;
+    }
 %}
 
 letter          = [a-zA-Z_]
@@ -84,12 +92,12 @@ char_literal    = "'" ([^'\\\ufffd] | "\\" [^\ufffd]) "'"
   else            { return sym(SCLTerminals.ELSE); }
   where           { return sym(SCLTerminals.WHERE); }
   when            { return sym(SCLTerminals.WHEN); }
-  ruleset         { return sym(SCLTerminals.RULESET); }
-  rule            { return sym(SCLTerminals.RULE); }
+  ruleset         { return sym(supportCHR() ? SCLTerminals.RULESET : SCLTerminals.ID); }
+  rule            { return sym(supportCHR() ? SCLTerminals.ID : SCLTerminals.RULE); }
   abstract{whitespace}rule { return sym(SCLTerminals.ABSTRACT_RULE); }
   extends         { return sym(SCLTerminals.EXTENDS); }
   mapping{whitespace}relation { return sym(SCLTerminals.MAPPING_RELATION); }
-  transformation  { return sym(SCLTerminals.TRANSFORMATION); }
+  transformation  { return sym(supportCHR() ? SCLTerminals.ID : SCLTerminals.TRANSFORMATION); }
   select{whitespace}first { return sym(SCLTerminals.SELECT_FIRST); }
   select{whitespace}distinct { return sym(SCLTerminals.SELECT_DISTINCT); }
   select          { return sym(SCLTerminals.SELECT); }