Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.scl.compiler / src / org / simantics / scl / compiler / constants / JavaTypeClassMethod.java

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/JavaTypeClassMethod.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/JavaTypeClassMethod.java
new file mode 100644 (file)
index 0000000..689f1ba
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/constants/JavaTypeClassMethod.java
@@ -0,0 +1,74 @@
+package org.simantics.scl.compiler.constants;
+
+import java.util.Arrays;
+
+import org.simantics.scl.compiler.elaboration.modules.MethodImplementation;
+import org.simantics.scl.compiler.elaboration.modules.TypeClassInstance;
+import org.simantics.scl.compiler.elaboration.modules.TypeClassMethod;
+import org.simantics.scl.compiler.internal.codegen.references.IVal;
+import org.simantics.scl.compiler.internal.codegen.references.Val;
+import org.simantics.scl.compiler.internal.codegen.references.ValRef;
+import org.simantics.scl.compiler.internal.codegen.ssa.statements.LetApply;
+import org.simantics.scl.compiler.internal.codegen.utils.SSASimplificationContext;
+import org.simantics.scl.compiler.types.Type;
+import org.simantics.scl.compiler.types.Types;
+
+public class JavaTypeClassMethod extends JavaMethod {
+
+    TypeClassMethod method;
+    
+    public JavaTypeClassMethod(TypeClassMethod method, String className, String methodName,
+            Type effect, Type returnType, Type[] parameterTypes) {
+        super(false, className, methodName, effect, returnType, parameterTypes);
+        this.method = method;
+    }
+
+    public TypeClassMethod getMethod() {
+        return method;
+    }
+    
+    public void inline(SSASimplificationContext context, LetApply apply) {
+        //ValRef evidenceRef = apply.getParameters()[0];
+        //inline(context, apply, evidenceRef.getBinding(), evidenceRef.getTypeParameters());
+        
+        ValRef classRef = apply.getParameters()[0];
+        Val class_ = classRef.getBinding();
+        if(class_ instanceof JavaTypeInstanceConstructor) {
+            JavaTypeInstanceConstructor constr = (JavaTypeInstanceConstructor)class_;
+            TypeClassInstance instance = constr.getInstance();
+            MethodImplementation impl = 
+                    instance.methodImplementations.get(method.getName());
+            if(!impl.isDefault) {
+                apply.getParameters()[0].remove();
+                apply.setParameters(Arrays.copyOfRange(apply.getParameters(), 1, apply.getParameters().length));
+                ValRef oldFunction = apply.getFunction();
+                Type[] typeParameters = oldFunction.getTypeParameters();
+                
+                IVal newValue = context.getEnvironment().getValue(impl.name).getValue();
+                
+                typeParameters = Arrays.copyOfRange(typeParameters, 
+                        instance.typeClass.parameters.length,
+                        typeParameters.length);
+                typeParameters = Types.concat(classRef.getTypeParameters(), typeParameters);                
+                apply.setFunction(newValue.createOccurrence(typeParameters));
+                oldFunction.remove();
+                context.markModified("simplify-method");
+            }
+        }
+    }
+    
+    /*private void inline(SSASimplificationContext context, LetApply apply, Val evidence, Type[] typeParameters) {
+        if(evidence instanceof JavaTypeInstanceConstructor) {
+            JavaTypeInstanceConstructor evidence_ = (JavaTypeInstanceConstructor)evidence;
+            evidence_.
+        }
+        else if(evidence instanceof BoundVar) {
+            BoundVarBinder parent = ((BoundVar)evidence).parent;
+            if(!(parent instanceof LetApply))
+                return;
+            LetApply parentApply = (LetApply)apply;
+        }
+                
+    }*/
+    
+}