More mirrors

A little more implementation and workarounds for Angular.  See #199.

[email protected]

Review URL: https://codereview.chromium.org/1489043002 .

Author: vsmenon

pkg/dev_compiler/lib/runtime/dart/_js_mirrors.js

@@ -132,11 +132,13 @@ dart_library.library('dart/_js_mirrors', null, /* Imports */[
       return new JsInstanceMirror._(instance);
     }
     get superinterfaces() {
-      let interfaces = this[_cls][dart.implements];
-      if (interfaces == null) {
+      let interfaceThunk = this[_cls][dart.implements];
+      if (interfaceThunk == null) {
         return dart.list([], mirrors.ClassMirror);
+      } else {
+        let interfaces = dart.as(dart.dcall(interfaceThunk), core.List$(core.Type));
+        return interfaces[dartx.map](dart.fn(t => new JsClassMirror._(dart.as(t, core.Type)), JsClassMirror, [dart.dynamic]))[dartx.toList]();
       }
-      dart.throw(new core.UnimplementedError("ClassMirror.superinterfaces unimplemented"));
     }
     getField(fieldName) {
       return dart.throw(new core.UnimplementedError("ClassMirror.getField unimplemented"));
@@ -186,7 +188,7 @@ dart_library.library('dart/_js_mirrors', null, /* Imports */[
       return dart.throw(new core.UnimplementedError("ClassMirror.mixin unimplemented"));
     }
     get originalDeclaration() {
-      return dart.throw(new core.UnimplementedError("ClassMirror.originalDeclaration unimplemented"));
+      return this;
     }
     get owner() {
       return dart.throw(new core.UnimplementedError("ClassMirror.owner unimplemented"));
@@ -195,13 +197,17 @@ dart_library.library('dart/_js_mirrors', null, /* Imports */[
       return dart.throw(new core.UnimplementedError("ClassMirror.qualifiedName unimplemented"));
     }
     get reflectedType() {
-      return dart.throw(new core.UnimplementedError("ClassMirror.reflectedType unimplemented"));
+      return this[_cls];
     }
     get staticMembers() {
       return dart.throw(new core.UnimplementedError("ClassMirror.staticMembers unimplemented"));
     }
     get superclass() {
-      return dart.throw(new core.UnimplementedError("ClassMirror.superclass unimplemented"));
+      if (dart.equals(this[_cls], core.Object)) {
+        return null;
+      } else {
+        return new JsClassMirror._(this[_cls].__proto__);
+      }
     }
     get typeArguments() {
       return dart.throw(new core.UnimplementedError("ClassMirror.typeArguments unimplemented"));
@@ -414,7 +420,7 @@ dart_library.library('dart/_js_mirrors', null, /* Imports */[
       return dart.throw(new core.UnimplementedError("MethodMirror.location unimplemented"));
     }
     get metadata() {
-      return dart.throw(new core.UnimplementedError("MethodMirror.metadata unimplemented"));
+      return dart.list([], mirrors.InstanceMirror);
     }
     get owner() {
       return dart.throw(new core.UnimplementedError("MethodMirror.owner unimplemented"));

pkg/dev_compiler/tool/input_sdk/private/js_mirrors.dart

@@ -120,11 +120,13 @@ class JsClassMirror implements ClassMirror {
   }
 
   List<ClassMirror> get superinterfaces {
-    var interfaces = JS('Function', '#[dart.implements]', _cls);
-    if (interfaces == null) {
+    var interfaceThunk = JS('Function', '#[dart.implements]', _cls);
+    if (interfaceThunk == null) {
       return [];
+    } else {
+      List<Type> interfaces = interfaceThunk();
+      return interfaces.map((t) => new JsClassMirror._(t)).toList();
     }
-    throw new UnimplementedError("ClassMirror.superinterfaces unimplemented");
   }
 
   // TODO(vsm): Implement
@@ -159,18 +161,25 @@ class JsClassMirror implements ClassMirror {
       throw new UnimplementedError("ClassMirror.location unimplemented");
   ClassMirror get mixin =>
       throw new UnimplementedError("ClassMirror.mixin unimplemented");
-  TypeMirror get originalDeclaration => throw new UnimplementedError(
-      "ClassMirror.originalDeclaration unimplemented");
+  TypeMirror get originalDeclaration {
+    // TODO(vsm): Handle generic case.  How should we represent an original
+    // declaration for a generic class?
+    return this;
+  }
   DeclarationMirror get owner =>
       throw new UnimplementedError("ClassMirror.owner unimplemented");
   Symbol get qualifiedName =>
       throw new UnimplementedError("ClassMirror.qualifiedName unimplemented");
-  Type get reflectedType =>
-      throw new UnimplementedError("ClassMirror.reflectedType unimplemented");
+  Type get reflectedType { return _cls; }
   Map<Symbol, MethodMirror> get staticMembers =>
       throw new UnimplementedError("ClassMirror.staticMembers unimplemented");
-  ClassMirror get superclass =>
-      throw new UnimplementedError("ClassMirror.superclass unimplemented");
+  ClassMirror get superclass {
+    if (_cls == Object) {
+      return null;
+    } else {
+      return new JsClassMirror._(JS('Type', '#.__proto__', _cls));
+    }
+  }
   List<TypeMirror> get typeArguments =>
       throw new UnimplementedError("ClassMirror.typeArguments unimplemented");
   List<TypeVariableMirror> get typeVariables =>
@@ -329,8 +338,10 @@ class JsMethodMirror implements MethodMirror {
       throw new UnimplementedError("MethodMirror.isTopLevel unimplemented");
   SourceLocation get location =>
       throw new UnimplementedError("MethodMirror.location unimplemented");
-  List<InstanceMirror> get metadata =>
-      throw new UnimplementedError("MethodMirror.metadata unimplemented");
+  List<InstanceMirror> get metadata {
+    // TODO(vsm): Parse and store method metadata
+    return <InstanceMirror>[];
+  }
   DeclarationMirror get owner =>
       throw new UnimplementedError("MethodMirror.owner unimplemented");
   Symbol get qualifiedName =>

pkg/dev_compiler/tool/sdk_expected_errors.txt

@@ -274,3 +274,4 @@ warning: [DownCastComposite] min(a.y, b.y) (num) will need runtime check to cast
 warning: [DownCastComposite] max(a.y, b.y) - top (num) will need runtime check to cast to type T (dart:math/rectangle.dart, line 231, col 16)
 warning: [DownCastComposite] _clampToZero(width) (num) will need runtime check to cast to type T (dart:math/rectangle.dart, line 247, col 28)
 warning: [DownCastComposite] _clampToZero(height) (num) will need runtime check to cast to type T (dart:math/rectangle.dart, line 263, col 30)
+warning: [DownCastComposite] interfaceThunk() (dynamic) will need runtime check to cast to type List<Type> (dart:_js_mirrors, line 127, col 31)