// Copyright (c) 2014, 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.

import 'package:expect/expect.dart';
import "package:async_helper/async_helper.dart";
import 'compiler_helper.dart';
import 'type_mask_test_helper.dart';

const String TEST = """

// [defaultFn_i] is called only via [foo_i]'s default value with a small integer.

defaultFn1(a) => a;
defaultFn2(a) => a;
defaultFn3(a) => a;
defaultFn4(a) => a;
defaultFn5(a) => a;
defaultFn6(a) => a;

foo1([fn = defaultFn1]) => fn(54);
foo2({fn: defaultFn2}) => fn(54);
foo3([fn = defaultFn3]) => fn(54);
foo4({fn: defaultFn4}) => fn(54);
foo5([fn = defaultFn5]) => fn(54);
foo6({fn: defaultFn6}) => fn(54);

main() {
  // Direct calls.
  foo1();
  foo2();
  // Indirect calls.
  (foo3)();
  (foo4)();
  // Calls via Function.apply.
  Function.apply(foo5, []);
  Function.apply(foo6, []);
}
""";

void main() {
  Uri uri = new Uri(scheme: 'source');
  var compiler = compilerFor(TEST, uri);
  asyncTest(() => compiler.run(uri).then((_) {
        var typesInferrer = compiler.globalInference.typesInferrerInternal;

        checkArgument(String functionName, type) {
          var functionElement = findElement(compiler, functionName);
          var signature = functionElement.functionSignature;
          var element = signature.requiredParameterCount > 0
              ? signature.requiredParameters.first
              : signature.optionalParameters.first;
          Expect.equals(
              type,
              simplify(typesInferrer.getTypeOfElement(element), compiler),
              functionName);
        }

        checkOptionalArgument(String functionName, type) {
          var functionElement = findElement(compiler, functionName);
          var signature = functionElement.functionSignature;
          var element = signature.optionalParameters.first;
          Expect.equals(
              type,
              simplify(typesInferrer.getTypeOfElement(element), compiler),
              functionName);
        }

        checkArgument('foo1', compiler.closedWorld.commonMasks.functionType);

        /// 01: ok
        checkArgument('foo2', compiler.closedWorld.commonMasks.functionType);

        /// 02: ok
        checkArgument('foo3', compiler.closedWorld.commonMasks.functionType);

        /// 03: ok
        checkArgument('foo4', compiler.closedWorld.commonMasks.functionType);

        /// 04: ok
        checkArgument('foo5', compiler.closedWorld.commonMasks.dynamicType);

        /// 05: ok
        checkArgument('foo6', compiler.closedWorld.commonMasks.dynamicType);

        /// 06: ok

        checkArgument(
            'defaultFn1', compiler.closedWorld.commonMasks.uint31Type);

        /// 07: ok
        checkArgument(
            'defaultFn2', compiler.closedWorld.commonMasks.uint31Type);

        /// 08: ok
        checkArgument(
            'defaultFn3', compiler.closedWorld.commonMasks.uint31Type);

        /// 09: ok
        checkArgument(
            'defaultFn4', compiler.closedWorld.commonMasks.uint31Type);

        /// 10: ok
        checkArgument(
            'defaultFn5', compiler.closedWorld.commonMasks.uint31Type);

        /// 11: ok
        checkArgument(
            'defaultFn6', compiler.closedWorld.commonMasks.uint31Type);

        /// 12: ok
      }));
}