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

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / elaboration / expressions / EPreCHRRulesetConstructor.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EPreCHRRulesetConstructor.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EPreCHRRulesetConstructor.java
new file mode 100644 (file)
index 0000000..500c805
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EPreCHRRulesetConstructor.java
@@ -0,0 +1,41 @@
+package org.simantics.scl.compiler.elaboration.expressions;
+
+import org.simantics.scl.compiler.elaboration.chr.CHRRuleset;
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;
+import org.simantics.scl.compiler.errors.Locations;
+import org.simantics.scl.compiler.internal.parsing.declarations.DRulesetAst;
+
+public class EPreCHRRulesetConstructor extends ASTExpression {
+    DRulesetAst rulesetAst;
+    
+    public EPreCHRRulesetConstructor(DRulesetAst rulesetAst) {
+        this.rulesetAst = rulesetAst;
+        this.location = rulesetAst.location;
+    }
+
+    @Override
+    public Expression resolve(TranslationContext context) {
+        CHRRuleset ruleset = rulesetAst.block.extractCHRRules(context);
+        ruleset.setLocationDeep(rulesetAst.location);
+        ruleset.setRulesetType(rulesetAst.type, rulesetAst.className);
+        ruleset.extensible = true;
+        context.getCompilationContext().module.addRuleset(rulesetAst.name, ruleset);
+        ECHRRulesetConstructor result = new ECHRRulesetConstructor(ruleset);
+        result.resolve(context);
+        result.setType(rulesetAst.type);
+        return result;
+    }
+
+    @Override
+    public void setLocationDeep(long loc) {
+        if(location == Locations.NO_LOCATION) {
+            rulesetAst.block.setLocationDeep(loc);
+            location = loc;
+        }
+    }
+
+    @Override
+    public Expression accept(ExpressionTransformer transformer) {
+        return this;
+    }
+}