Allow invocation of constructors using Dart_Invoke.

runtime/vm/dart_api_impl_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/builtin.h"
 #include "include/dart_api.h"
 #include "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 #include "platform/assert.h"
 #include "platform/json.h"
@@ skipping 3826 matching lines @@
   EXPECT_VALID(result);
   bool instanceof = false;
   EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
   EXPECT(instanceof);
   int64_t int_value = 0;
   Dart_Handle foo = Dart_GetField(result, NewString("foo"));
   EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
   EXPECT_EQ(7, int_value);
 
   // Allocate without a constructor.
-  result = Dart_Allocate(type);
-  EXPECT_VALID(result);
+  Dart_Handle obj = Dart_Allocate(type);
+  EXPECT_VALID(obj);
   instanceof = false;
-  EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
+  EXPECT_VALID(Dart_ObjectIsType(obj, type, &instanceof));
   EXPECT(instanceof);
-  foo = Dart_GetField(result, NewString("foo"));
+  foo = Dart_GetField(obj, NewString("foo"));
   EXPECT(Dart_IsNull(foo));
 
   // Invoke the unnamed constructor with an empty string.
   result = Dart_New(type, NewString(""), 0, NULL);
   EXPECT_VALID(result);
   instanceof = false;
   EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
   EXPECT(instanceof);
   int_value = 0;
   foo = Dart_GetField(result, NewString("foo"));
   EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
   EXPECT_EQ(7, int_value);
 
+  // Allocate object and invoke the unnamed constructor with an empty string.
+  obj = Dart_Allocate(type);
+  EXPECT_VALID(obj);
+  instanceof = false;
+  EXPECT_VALID(Dart_ObjectIsType(obj, type, &instanceof));
+  EXPECT(instanceof);
+  result = Dart_InvokeConstructor(obj, NewString(""), 0, NULL);
+  EXPECT_VALID(result);
+  int_value = 0;
+  foo = Dart_GetField(result, NewString("foo"));
+  EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
+  EXPECT_EQ(7, int_value);
+
   // Invoke a named constructor.
   result = Dart_New(type, NewString("named"), 1, args);
   EXPECT_VALID(result);
   EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
   EXPECT(instanceof);
   int_value = 0;
   foo = Dart_GetField(result, NewString("foo"));
   EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
   EXPECT_EQ(11, int_value);
 
+  // Allocate object and invoke a named constructor.
+  obj = Dart_Allocate(type);
+  EXPECT_VALID(obj);
+  instanceof = false;
+  EXPECT_VALID(Dart_ObjectIsType(obj, type, &instanceof));
+  EXPECT(instanceof);
+  result = Dart_InvokeConstructor(obj, NewString("named"), 1, args);
+  EXPECT_VALID(result);
+  int_value = 0;
+  foo = Dart_GetField(result, NewString("foo"));
+  EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
+  EXPECT_EQ(11, int_value);
+
   // Invoke a hidden named constructor.
   result = Dart_New(type, NewString("_hidden"), 1, args);
   EXPECT_VALID(result);
   EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
   EXPECT(instanceof);
   int_value = 0;
   foo = Dart_GetField(result, NewString("foo"));
   EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
   EXPECT_EQ(-11, int_value);
 
+  // Allocate object and invoke a hidden named constructor.
+  obj = Dart_Allocate(type);
+  EXPECT_VALID(obj);
+  instanceof = false;
+  EXPECT_VALID(Dart_ObjectIsType(obj, type, &instanceof));
+  EXPECT(instanceof);
+  result = Dart_InvokeConstructor(obj, NewString("_hidden"), 1, args);
+  EXPECT_VALID(result);
+  int_value = 0;
+  foo = Dart_GetField(result, NewString("foo"));
+  EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
+  EXPECT_EQ(-11, int_value);
+
+  // Allocate object and Invoke a constructor which throws an exception.
+  obj = Dart_Allocate(type);
+  EXPECT_VALID(obj);
+  instanceof = false;
+  EXPECT_VALID(Dart_ObjectIsType(obj, type, &instanceof));
+  EXPECT(instanceof);
+  result = Dart_InvokeConstructor(obj, NewString("exception"), 1, args);
+  EXPECT_ERROR(result, "ConstructorDeath");
+
   // Invoke a factory constructor.
   result = Dart_New(type, NewString("multiply"), 1, args);
   EXPECT_VALID(result);
   EXPECT_VALID(Dart_ObjectIsType(result, type, &instanceof));
   EXPECT(instanceof);
   int_value = 0;
   foo = Dart_GetField(result, NewString("foo"));
   EXPECT_VALID(Dart_IntegerToInt64(foo, &int_value));
   EXPECT_EQ(1100, int_value);
 
@@ skipping 3416 matching lines @@
                                    NewString("main"),
                                    0,
                                    NULL);
   int64_t value = 0;
   result = Dart_IntegerToInt64(result, &value);
   EXPECT_VALID(result);
   EXPECT_EQ(8, value);
 }
 
 }  // namespace dart