pkg/front_end/testcases/expression/issue_57040_02.expression.yaml

# Copyright (c) 2024, 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.

# https://github.com/dart-lang/sdk/issues/57040

# Definition, offset, method etc extracted by starting the VM with
# `-DDFE_VERBOSE=true`, e.g.
# ```
# out/ReleaseX64/dart -DDFE_VERBOSE=true --enable-vm-service \
# --serve-observatory --disable-service-auth-codes --pause_isolates_on_start \
# inputFile.dart
# ```
# and then issuing the expression compilation. It will then print stuff like
# `DFE: request[6]: [dart:core, _OneByteString, 1, 0]` in the terminal.

sources: |
  import "dart:developer";

  extension on String? {
    bool get isNullOrEmpty {
      var str = this;
      return str == null || str.isEmpty;
    }
  }

  void main() {
    String? str = "hello";
    debugger();
    print(str.isNullOrEmpty);
    str = null;
    debugger();
    print(str.isNullOrEmpty);
  }

definitions: ["str"]
# dynamic
definition_types: ["null"]
type_definitions: []
type_bounds: []
type_defaults: []
method: "main"
static: true
offset: 239 # at the second 'debugger' call.
scriptUri: main.dart
expression: |
  str.isNullOrEmpty