dart-sdk/tests/compiler/dartdevc_native/runtime_utils_nnbd.dart
Nicholas Shahan 8064c1c342 [ddc] Add typeRep<T>() to inline an unwrapped type directly
Also add `legacyTypeRep<T>()` that is similar but performs
a shallow conversion to a legacy type.

Using this in compiler/dartdevc_native/ tests gives a better usability
instead of constantly wrapping and unwrapping types. It allows us to
avoid stripping off the legacy from a type when calling `wrapType()`.

Issue: https://github.com/dart-lang/sdk/issues/40266
Change-Id: I07225f18c253222b31203b0b110233a3e018a7d0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142547
Commit-Queue: Nicholas Shahan <nshahan@google.com>
Reviewed-by: Sigmund Cherem <sigmund@google.com>
2020-04-08 00:03:38 +00:00

29 lines
1.1 KiB
Dart

// Copyright (c) 2019, 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 'dart:_foreign_helper' show JS;
import 'dart:_runtime' show gFnType, typeRep;
/// Returns an unwrapped generic function type with a bounded type argument in
/// the form: <T extends [bound]> void -> void.
Object genericFunction(Object bound) =>
gFnType((T) => [typeRep<void>(), []], (T) => [bound]);
/// Returns an unwrapped generic function type with a bounded type argument in
/// the form: <T extends [bound]> [argumentType] -> T.
Object functionGenericReturn(Object bound, Object argType) => gFnType(
(T) => [
T,
[argType]
],
(T) => [bound]);
/// Returns an unwrapped generic function type with a bounded type argument in
/// the form: <T extends [bound]> T -> [returnType].
Object functionGenericArg(Object bound, Object returnType) => gFnType(
(T) => [
returnType,
[T]
],
(T) => [bound]);