Utility class moved from the front-end

2011-10-13 21:25:42 +04:00
parent e38279899c
commit 3894eff5f2
4 changed files with 8 additions and 5 deletions
@@ -13,7 +13,6 @@ import org.jetbrains.jet.lang.psi.JetFunctionLiteralExpression;
 import org.jetbrains.jet.lang.resolve.BindingContext;
 import org.jetbrains.jet.lang.resolve.scopes.receivers.ReceiverDescriptor;
 import org.jetbrains.jet.lang.types.JetType;
-import org.jetbrains.jet.lang.types.ProjectionErasingJetType;
 import org.objectweb.asm.ClassVisitor;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Opcodes;
@@ -0,0 +1,67 @@
+package org.jetbrains.jet.codegen;
+
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lang.descriptors.annotations.AnnotationDescriptor;
+import org.jetbrains.jet.lang.resolve.scopes.JetScope;
+import org.jetbrains.jet.lang.types.JetType;
+import org.jetbrains.jet.lang.types.TypeConstructor;
+import org.jetbrains.jet.lang.types.TypeProjection;
+import org.jetbrains.jet.lang.types.Variance;
+
+import java.util.*;
+
+/**
+ * @author alex.tkachman
+ *
+ * Utility class used by back-end to
+ */
+public class ProjectionErasingJetType implements JetType {
+    private final JetType delegate;
+    private List<TypeProjection> arguments;
+
+    public ProjectionErasingJetType(JetType delegate) {
+        this.delegate = delegate;
+        arguments = new ArrayList<TypeProjection>();
+        for(TypeProjection tp : delegate.getArguments()) {
+            arguments.add(new TypeProjection(Variance.INVARIANT, tp.getType()));
+        }
+    }
+
+    @NotNull
+    @Override
+    public TypeConstructor getConstructor() {
+        return delegate.getConstructor();
+    }
+
+    @NotNull
+    @Override
+    public List<TypeProjection> getArguments() {
+        return arguments;
+    }
+
+    @Override
+    public boolean isNullable() {
+        return false;
+    }
+
+    @NotNull
+    @Override
+    public JetScope getMemberScope() {
+        return delegate.getMemberScope();
+    }
+
+    @Override
+    public List<AnnotationDescriptor> getAnnotations() {
+        return delegate.getAnnotations();
+    }
+
+    @Override
+    public int hashCode() {
+        return delegate.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        return ((obj instanceof ProjectionErasingJetType) && delegate.equals(((ProjectionErasingJetType)obj).delegate)) || delegate.equals(obj);
+    }
+}