Tim Blasi
77b31ab42f
Add two transform parameters to aid in debugging the transformer
- `mirror_mode`, with values {`debug`, `none`, and `verbose`}
- `init_reflector`, with values {`true`, `false`}
`mirror_mode`:
- `debug`: Allow reflective access, but log a message if it is used
- `none`: Remove reflective access, `throw` if it is used. Default value
- `verbose`: Allow reflective access, log a stack trace if it is used
`init_reflector`: Whether to generate calls to our generated
`initReflector` code.
These will be useful to reveal areas where the transformer is not generating
appropriate code and to quickly see where reflective accesses occur.
When the pub mode is `transform_dynamic`, we run in MirrorMode.debug
with `init_reflector = false`. This is used for testing purposes.
56 lines
1.6 KiB
Dart
56 lines
1.6 KiB
Dart
library angular2.transform.common.options_reader;
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import 'package:barback/barback.dart';
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import 'mirror_mode.dart';
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import 'options.dart';
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TransformerOptions parseBarbackSettings(BarbackSettings settings) {
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var config = settings.configuration;
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var entryPoints = _readFileList(config, ENTRY_POINT_PARAM);
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var reflectionEntryPoints =
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_readFileList(config, REFLECTION_ENTRY_POINT_PARAM);
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var initReflector = !config.containsKey('init_reflector') ||
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config['init_reflector'] != false;
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String mirrorModeVal =
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config.containsKey('mirror_mode') ? config['mirror_mode'] : '';
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var mirrorMode = MirrorMode.none;
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switch (mirrorModeVal) {
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case 'debug':
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mirrorMode = MirrorMode.debug;
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break;
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case 'verbose':
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mirrorMode = MirrorMode.verbose;
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break;
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default:
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mirrorMode = MirrorMode.none;
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break;
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}
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return new TransformerOptions(entryPoints,
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reflectionEntryPoints: reflectionEntryPoints,
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modeName: settings.mode.name,
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mirrorMode: mirrorMode,
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initReflector: initReflector);
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}
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/// Cribbed from the polymer project.
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/// {@link https://github.com/dart-lang/polymer-dart}
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List<String> _readFileList(Map config, String paramName) {
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var value = config[paramName];
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if (value == null) return null;
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var files = [];
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bool error = false;
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if (value is List) {
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files = value;
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error = value.any((e) => e is! String);
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} else if (value is String) {
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files = [value];
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error = false;
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} else {
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error = true;
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}
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if (error) {
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print('Invalid value for "$paramName" in the Angular 2 transformer.');
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}
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return files;
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}
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