First pass at asynchronous input loading in dart2js.

tests/compiler/dart2js/type_representation_test.dart

Index: tests/compiler/dart2js/type_representation_test.dart
diff --git a/tests/compiler/dart2js/type_representation_test.dart b/tests/compiler/dart2js/type_representation_test.dart
index 8c651f697d756b5dbb32802c55921be6c39112c7..5e6b7c5e2885ebd95e1c949c08a5d55b3214f2a3 100644
--- a/tests/compiler/dart2js/type_representation_test.dart
+++ b/tests/compiler/dart2js/type_representation_test.dart
@@ -5,6 +5,7 @@
 library subtype_test;
 
 import 'package:expect/expect.dart';
+import "package:async_helper/async_helper.dart";
 import 'type_test_helper.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/dart_types.dart';
 import '../../../sdk/lib/_internal/compiler/implementation/js/js.dart';
@@ -18,7 +19,7 @@ void main() {
 }
 
 void testTypeRepresentations() {
-  var env = new TypeEnvironment(r"""
+  asyncTest(() => TypeEnvironment.create(r"""
       typedef void Typedef();
 
       void m1() {}
@@ -31,133 +32,133 @@ void testTypeRepresentations() {
       m8(int a, {String b}) {}
       m9(int a, String b, {List<int> c, d}) {}
       m10(void f(int a, [b])) {}
-      """);
-
-  TypeRepresentationGenerator typeRepresentation =
-      new TypeRepresentationGenerator(env.compiler);
-
-  Expression onVariable(TypeVariableType variable) {
-    return new VariableUse(variable.name.slowToString());
-  }
-
-  String stringify(Expression expression) {
-    return prettyPrint(expression, env.compiler).buffer.toString();
-  }
-
-  void expect(String expectedRepresentation, DartType type) {
-    Expression expression =
-        typeRepresentation.getTypeRepresentation(type, onVariable);
-    Expect.stringEquals(expectedRepresentation, stringify(expression));
-  }
-
-  String getJsName(ClassElement cls) {
-    Expression name = typeRepresentation.getJavaScriptClassName(cls);
-    return stringify(name);
-  }
-
-  JavaScriptBackend backend = env.compiler.backend;
-  String func = backend.namer.functionTypeTag();
-  String retvoid = backend.namer.functionTypeVoidReturnTag();
-  String ret = backend.namer.functionTypeReturnTypeTag();
-  String args = backend.namer.functionTypeRequiredParametersTag();
-  String opt = backend.namer.functionTypeOptionalParametersTag();
-  String named = backend.namer.functionTypeNamedParametersTag();
-
-  ClassElement List_ = env.getElement('List');
-  TypeVariableType List_E = List_.typeVariables.head;
-  ClassElement Map_ = env.getElement('Map');
-  TypeVariableType Map_K = Map_.typeVariables.head;
-  TypeVariableType Map_V = Map_.typeVariables.tail.head;
-
-  DartType Object_ = env['Object'];
-  DartType int_ = env['int'];
-  DartType String_ = env['String'];
-  DartType dynamic_ = env['dynamic'];
-  DartType Typedef_ = env['Typedef'];
-
-  String List_rep = getJsName(List_);
-  String List_E_rep = stringify(onVariable(List_E));
-  String Map_rep = getJsName(Map_);
-  String Map_K_rep = stringify(onVariable(Map_K));
-  String Map_V_rep = stringify(onVariable(Map_V));
-
-  String Object_rep = getJsName(Object_.element);
-  String int_rep = getJsName(int_.element);
-  String String_rep = getJsName(String_.element);
-
-  expect('$int_rep', int_);
-  expect('$String_rep', String_);
-  expect('null', dynamic_);
-
-  // List<E>
-  expect('[$List_rep, $List_E_rep]', List_.computeType(env.compiler));
-  // List
-  expect('$List_rep', List_.rawType);
-  // List<dynamic>
-  expect('[$List_rep, null]', instantiate(List_, [dynamic_]));
-  // List<int>
-  expect('[$List_rep, $int_rep]', instantiate(List_, [int_]));
-  // List<Typedef>
-  expect('[$List_rep, {$func: "void_", $retvoid: true}]',
-      instantiate(List_, [Typedef_]));
-
-  // Map<K,V>
-  expect('[$Map_rep, $Map_K_rep, $Map_V_rep]', Map_.computeType(env.compiler));
-  // Map
-  expect('$Map_rep', Map_.rawType);
-  // Map<dynamic,dynamic>
-  expect('[$Map_rep, null, null]', instantiate(Map_, [dynamic_, dynamic_]));
-  // Map<int,String>
-  expect('[$Map_rep, $int_rep, $String_rep]',
-      instantiate(Map_, [int_, String_]));
-
-  // void m1() {}
-  expect('{$func: "void_", $retvoid: true}',
-      env.getElement('m1').computeType(env.compiler));
-
-  // int m2() => 0;
-  expect('{$func: "int_", $ret: $int_rep}',
-      env.getElement('m2').computeType(env.compiler));
-
-  // List<int> m3() => null;
-  expect('{$func: "List_", $ret: [$List_rep, $int_rep]}',
-      env.getElement('m3').computeType(env.compiler));
-
-  // m4() {}
-  expect('{$func: "args0"}',
-      env.getElement('m4').computeType(env.compiler));
-
-  // m5(int a, String b) {}
-  expect('{$func: "dynamic__int_String", $args: [$int_rep, $String_rep]}',
-      env.getElement('m5').computeType(env.compiler));
-
-  // m6(int a, [String b]) {}
-  expect('{$func: "dynamic__int__String", $args: [$int_rep],'
-         ' $opt: [$String_rep]}',
-      env.getElement('m6').computeType(env.compiler));
-
-  // m7(int a, String b, [List<int> c, d]) {}
-  expect('{$func: "dynamic__int_String__List_dynamic",'
-         ' $args: [$int_rep, $String_rep],'
-         ' $opt: [[$List_rep, $int_rep], null]}',
-      env.getElement('m7').computeType(env.compiler));
-
-  // m8(int a, {String b}) {}
-  expect('{$func: "dynamic__int__String0",'
-         ' $args: [$int_rep], $named: {b: $String_rep}}',
-      env.getElement('m8').computeType(env.compiler));
-
-  // m9(int a, String b, {List<int> c, d}) {}
-  expect('{$func: "dynamic__int_String__List_dynamic0",'
-         ' $args: [$int_rep, $String_rep],'
-         ' $named: {c: [$List_rep, $int_rep], d: null}}',
-      env.getElement('m9').computeType(env.compiler));
-
-  // m10(void f(int a, [b])) {}
-  expect('{$func: "dynamic__void__int__dynamic", $args:'
-         ' [{$func: "void__int__dynamic",'
-         ' $retvoid: true, $args: [$int_rep], $opt: [null]}]}',
-      env.getElement('m10').computeType(env.compiler));
+      """).then((env) {
+    TypeRepresentationGenerator typeRepresentation =
+        new TypeRepresentationGenerator(env.compiler);
+
+    Expression onVariable(TypeVariableType variable) {
+      return new VariableUse(variable.name.slowToString());
+    }
+
+    String stringify(Expression expression) {
+      return prettyPrint(expression, env.compiler).buffer.toString();
+    }
+
+    void expect(String expectedRepresentation, DartType type) {
+      Expression expression =
+          typeRepresentation.getTypeRepresentation(type, onVariable);
+      Expect.stringEquals(expectedRepresentation, stringify(expression));
+    }
+
+    String getJsName(ClassElement cls) {
+      Expression name = typeRepresentation.getJavaScriptClassName(cls);
+      return stringify(name);
+    }
+
+    JavaScriptBackend backend = env.compiler.backend;
+    String func = backend.namer.functionTypeTag();
+    String retvoid = backend.namer.functionTypeVoidReturnTag();
+    String ret = backend.namer.functionTypeReturnTypeTag();
+    String args = backend.namer.functionTypeRequiredParametersTag();
+    String opt = backend.namer.functionTypeOptionalParametersTag();
+    String named = backend.namer.functionTypeNamedParametersTag();
+
+    ClassElement List_ = env.getElement('List');
+    TypeVariableType List_E = List_.typeVariables.head;
+    ClassElement Map_ = env.getElement('Map');
+    TypeVariableType Map_K = Map_.typeVariables.head;
+    TypeVariableType Map_V = Map_.typeVariables.tail.head;
+
+    DartType Object_ = env['Object'];
+    DartType int_ = env['int'];
+    DartType String_ = env['String'];
+    DartType dynamic_ = env['dynamic'];
+    DartType Typedef_ = env['Typedef'];
+
+    String List_rep = getJsName(List_);
+    String List_E_rep = stringify(onVariable(List_E));
+    String Map_rep = getJsName(Map_);
+    String Map_K_rep = stringify(onVariable(Map_K));
+    String Map_V_rep = stringify(onVariable(Map_V));
+
+    String Object_rep = getJsName(Object_.element);
+    String int_rep = getJsName(int_.element);
+    String String_rep = getJsName(String_.element);
+
+    expect('$int_rep', int_);
+    expect('$String_rep', String_);
+    expect('null', dynamic_);
+
+    // List<E>
+    expect('[$List_rep, $List_E_rep]', List_.computeType(env.compiler));
+    // List
+    expect('$List_rep', List_.rawType);
+    // List<dynamic>
+    expect('[$List_rep, null]', instantiate(List_, [dynamic_]));
+    // List<int>
+    expect('[$List_rep, $int_rep]', instantiate(List_, [int_]));
+    // List<Typedef>
+    expect('[$List_rep, {$func: "void_", $retvoid: true}]',
+        instantiate(List_, [Typedef_]));
+
+    // Map<K,V>
+    expect('[$Map_rep, $Map_K_rep, $Map_V_rep]', Map_.computeType(env.compiler));
+    // Map
+    expect('$Map_rep', Map_.rawType);
+    // Map<dynamic,dynamic>
+    expect('[$Map_rep, null, null]', instantiate(Map_, [dynamic_, dynamic_]));
+    // Map<int,String>
+    expect('[$Map_rep, $int_rep, $String_rep]',
+        instantiate(Map_, [int_, String_]));
+
+    // void m1() {}
+    expect('{$func: "void_", $retvoid: true}',
+        env.getElement('m1').computeType(env.compiler));
+
+    // int m2() => 0;
+    expect('{$func: "int_", $ret: $int_rep}',
+        env.getElement('m2').computeType(env.compiler));
+
+    // List<int> m3() => null;
+    expect('{$func: "List_", $ret: [$List_rep, $int_rep]}',
+        env.getElement('m3').computeType(env.compiler));
+
+    // m4() {}
+    expect('{$func: "args0"}',
+        env.getElement('m4').computeType(env.compiler));
+
+    // m5(int a, String b) {}
+    expect('{$func: "dynamic__int_String", $args: [$int_rep, $String_rep]}',
+        env.getElement('m5').computeType(env.compiler));
+
+    // m6(int a, [String b]) {}
+    expect('{$func: "dynamic__int__String", $args: [$int_rep],'
+           ' $opt: [$String_rep]}',
+        env.getElement('m6').computeType(env.compiler));
+
+    // m7(int a, String b, [List<int> c, d]) {}
+    expect('{$func: "dynamic__int_String__List_dynamic",'
+           ' $args: [$int_rep, $String_rep],'
+           ' $opt: [[$List_rep, $int_rep], null]}',
+        env.getElement('m7').computeType(env.compiler));
+
+    // m8(int a, {String b}) {}
+    expect('{$func: "dynamic__int__String0",'
+           ' $args: [$int_rep], $named: {b: $String_rep}}',
+        env.getElement('m8').computeType(env.compiler));
+
+    // m9(int a, String b, {List<int> c, d}) {}
+    expect('{$func: "dynamic__int_String__List_dynamic0",'
+           ' $args: [$int_rep, $String_rep],'
+           ' $named: {c: [$List_rep, $int_rep], d: null}}',
+        env.getElement('m9').computeType(env.compiler));
+
+    // m10(void f(int a, [b])) {}
+    expect('{$func: "dynamic__void__int__dynamic", $args:'
+           ' [{$func: "void__int__dynamic",'
+           ' $retvoid: true, $args: [$int_rep], $opt: [null]}]}',
+        env.getElement('m10').computeType(env.compiler));
+  }));
 }