Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EExternalConstant.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EExternalConstant.java
new file mode 100755 (executable)
index 0000000..afbe9d6
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/expressions/EExternalConstant.java
@@ -0,0 +1,135 @@
+package org.simantics.scl.compiler.elaboration.expressions;\r
+\r
+import gnu.trove.map.hash.TObjectIntHashMap;\r
+import gnu.trove.set.hash.THashSet;\r
+import gnu.trove.set.hash.TIntHashSet;\r
+\r
+import java.util.ArrayList;\r
+\r
+import org.simantics.scl.compiler.common.exceptions.InternalCompilerError;\r
+import org.simantics.scl.compiler.elaboration.contexts.ReplaceContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.SimplificationContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.TranslationContext;\r
+import org.simantics.scl.compiler.elaboration.contexts.TypingContext;\r
+import org.simantics.scl.compiler.environment.Environment;\r
+import org.simantics.scl.compiler.errors.Locations;\r
+import org.simantics.scl.compiler.internal.codegen.references.IVal;\r
+import org.simantics.scl.compiler.internal.codegen.writer.CodeWriter;\r
+import org.simantics.scl.compiler.internal.codegen.writer.ModuleWriter;\r
+import org.simantics.scl.compiler.internal.elaboration.utils.ExpressionDecorator;\r
+import org.simantics.scl.compiler.internal.interpreted.IConstant;\r
+import org.simantics.scl.compiler.internal.interpreted.IExpression;\r
+import org.simantics.scl.compiler.top.ExpressionInterpretationContext;\r
+import org.simantics.scl.compiler.types.Type;\r
+import org.simantics.scl.compiler.types.exceptions.MatchException;\r
+import org.simantics.scl.compiler.types.util.TypeUnparsingContext;\r
+\r
+public class EExternalConstant extends Expression {\r
+    Object value;\r
+    \r
+    public EExternalConstant(Object value, Type type) {\r
+        this.value = value;\r
+        setType(type);\r
+    }\r
+    \r
+    public Object getValue() {\r
+        return value;\r
+    }\r
+\r
+       public void collectRefs(TObjectIntHashMap<Object> allRefs, TIntHashSet refs) {\r
+    }\r
+\r
+       @Override\r
+       public void collectVars(TObjectIntHashMap<Variable> allVars,\r
+               TIntHashSet vars) {         \r
+       }\r
+       \r
+       public void toString(StringBuilder b, TypeUnparsingContext tuc) {\r
+        b.append(value);\r
+    }\r
+\r
+       @Override\r
+       protected void updateType() throws MatchException {\r
+           throw new InternalCompilerError("EExternalConstants must have explicitly defined type.");\r
+       }\r
+       \r
+       @Override\r
+       public IVal toVal(Environment env, CodeWriter w) {\r
+               ModuleWriter mw = w.getModuleWriter();\r
+               return mw.getExternalConstant(value, getType());\r
+    }\r
+\r
+    @Override\r
+    public void collectFreeVariables(THashSet<Variable> vars) {\r
+    }\r
+\r
+\r
+    @Override\r
+    public Expression simplify(SimplificationContext context) {\r
+        return this;\r
+    }\r
+\r
+    @Override\r
+    public Expression resolve(TranslationContext context) {\r
+        return this;\r
+    }\r
+    \r
+    @Override\r
+    public Expression resolveAsPattern(TranslationContext context) {\r
+        return this;\r
+    }\r
+    \r
+    @Override\r
+    public void getParameters(TranslationContext translationContext,\r
+            ArrayList<Expression> parameters) {\r
+    }\r
+\r
+    @Override\r
+    public Expression replace(ReplaceContext context) {\r
+        return new EExternalConstant(value, getType().replace(context.tvarMap));\r
+    }\r
+    \r
+    @Override\r
+    public void removeFreeVariables(THashSet<Variable> vars) {     \r
+    }\r
+    \r
+    @Override\r
+    public Expression inferType(TypingContext context) {\r
+        return this;\r
+    }\r
+\r
+    @Override\r
+    public Expression decorate(ExpressionDecorator decorator) {\r
+        return decorator.decorate(this);\r
+    }\r
+\r
+    @Override\r
+    public void collectEffects(THashSet<Type> effects) {\r
+    }\r
+    \r
+    @Override\r
+    public void setLocationDeep(long loc) {\r
+        if(location == Locations.NO_LOCATION)\r
+            location = loc;\r
+    }\r
+    \r
+    @Override\r
+    public void accept(ExpressionVisitor visitor) {\r
+        visitor.visit(this);\r
+    }\r
+    \r
+    @Override\r
+    public IExpression toIExpression(ExpressionInterpretationContext context) {\r
+        return new IConstant(value);\r
+    }\r
+\r
+    @Override\r
+    public void forVariables(VariableProcedure procedure) {\r
+    }\r
+    \r
+    @Override\r
+    public Expression accept(ExpressionTransformer transformer) {\r
+        return transformer.transform(this);\r
+    }\r
+\r
+}\r