[NTI] Refactor CodingConvention.applySubclassRelationship to use Prop…

…etyDeclarer. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=168760846
google · Sep 15, 2017 · 37a91ba · 37a91ba
1 parent 68a64d6
commit 37a91ba
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Showing 5 changed files with 30 additions and 17 deletions.
diff --git a/src/com/google/javascript/jscomp/ClosureCodingConvention.java b/src/com/google/javascript/jscomp/ClosureCodingConvention.java
@@ -73,21 +73,24 @@ public ClosureCodingConvention(CodingConvention wrapped) {
    * subclass, and a {@code constructor} property.
    */
   @Override
-  public void applySubclassRelationship(FunctionType parentCtor,
-      FunctionType childCtor, SubclassType type) {
-    super.applySubclassRelationship(parentCtor, childCtor, type);
+  public void applySubclassRelationship(
+      PropertyDeclarer declarer,
+      FunctionTypeI parentCtor,
+      FunctionTypeI childCtor,
+      SubclassType type) {
+    super.applySubclassRelationship(declarer, parentCtor, childCtor, type);
     if (type == SubclassType.INHERITS) {
-      childCtor.defineDeclaredProperty("superClass_",
-          parentCtor.getPrototype(), childCtor.getSource());
-      childCtor.getPrototype().defineDeclaredProperty("constructor",
+      declarer.declareProperty(childCtor, "superClass_",
+          parentCtor.getPrototypeProperty(), childCtor.getSource());
+      declarer.declareProperty(childCtor.getPrototypeProperty(), "constructor",
           // Notice that constructor functions do not need to be covariant
           // on the superclass.
           // So if G extends F, new G() and new F() can accept completely
           // different argument types, but G.prototype.constructor needs
           // to be covariant on F.prototype.constructor.
           // To get around this, we just turn off type-checking on arguments
           // and return types of G.prototype.constructor.
-          (FunctionType) childCtor.toBuilder().withUnknownReturnType().withNoParameters().build(),
+          childCtor.toBuilder().withUnknownReturnType().withNoParameters().build(),
           childCtor.getSource());
     }
   }

diff --git a/src/com/google/javascript/jscomp/CodingConvention.java b/src/com/google/javascript/jscomp/CodingConvention.java
@@ -214,8 +214,11 @@ public interface CodingConvention extends Serializable {
    * In many JS libraries, the function that produces inheritance also
    * adds properties to the superclass and/or subclass.
    */
-  public void applySubclassRelationship(FunctionType parentCtor,
-      FunctionType childCtor, SubclassType type);
+  public void applySubclassRelationship(
+      PropertyDeclarer declarer,
+      FunctionTypeI parentCtor,
+      FunctionTypeI childCtor,
+      SubclassType type);
 
   /**
    * Function name for abstract methods. An abstract method can be assigned to

diff --git a/src/com/google/javascript/jscomp/CodingConventions.java b/src/com/google/javascript/jscomp/CodingConventions.java
@@ -200,10 +200,12 @@ public List<String> identifyTypeDeclarationCall(Node n) {
     }
 
     @Override
-    public void applySubclassRelationship(FunctionType parentCtor,
-        FunctionType childCtor, SubclassType type) {
-      nextConvention.applySubclassRelationship(
-          parentCtor, childCtor, type);
+    public void applySubclassRelationship(
+        PropertyDeclarer declarer,
+        FunctionTypeI parentCtor,
+        FunctionTypeI childCtor,
+        SubclassType type) {
+      nextConvention.applySubclassRelationship(declarer, parentCtor, childCtor, type);
     }
 
     @Override
@@ -458,8 +460,11 @@ public List<String> identifyTypeDeclarationCall(Node n) {
     }
 
     @Override
-    public void applySubclassRelationship(FunctionType parentCtor,
-        FunctionType childCtor, SubclassType type) {
+    public void applySubclassRelationship(
+        PropertyDeclarer declarer,
+        FunctionTypeI parentCtor,
+        FunctionTypeI childCtor,
+        SubclassType type) {
       // do nothing
     }
 

diff --git a/src/com/google/javascript/jscomp/TypedScopeCreator.java b/src/com/google/javascript/jscomp/TypedScopeCreator.java
@@ -1502,7 +1502,7 @@ private void checkForClassDefiningCalls(Node n) {
           FunctionType subCtor = subClass.getConstructor();
           if (superCtor != null && subCtor != null) {
             codingConvention.applySubclassRelationship(
-                superCtor, subCtor, relationship.type);
+                PROPERTY_DECLARER, superCtor, subCtor, relationship.type);
           }
         }
       }

diff --git a/test/com/google/javascript/jscomp/ClosureCodingConventionTest.java b/test/com/google/javascript/jscomp/ClosureCodingConventionTest.java
@@ -22,6 +22,7 @@
 import com.google.javascript.rhino.Token;
 import com.google.javascript.rhino.jstype.FunctionType;
 import com.google.javascript.rhino.jstype.JSTypeRegistry;
+import com.google.javascript.rhino.jstype.PropertyDeclarer;
 import junit.framework.TestCase;
 
 /**
@@ -215,6 +216,7 @@ public void testRequire() {
 
   public void testApplySubclassRelationship() {
     JSTypeRegistry registry = new JSTypeRegistry(null);
+    PropertyDeclarer declarer = new PropertyDeclarer();
 
     Node nodeA = new Node(Token.FUNCTION);
     FunctionType ctorA =
@@ -224,7 +226,7 @@ public void testApplySubclassRelationship() {
     FunctionType ctorB =
         registry.createConstructorType("B", nodeB, new Node(Token.PARAM_LIST), null, null, false);
 
-    conv.applySubclassRelationship(ctorA, ctorB, SubclassType.INHERITS);
+    conv.applySubclassRelationship(declarer, ctorA, ctorB, SubclassType.INHERITS);
 
     assertTrue(ctorB.getPrototype().hasOwnProperty("constructor"));
     assertEquals(nodeB, ctorB.getPrototype().getPropertyNode("constructor"));