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enable prefer_null_aware_operators (#77105)
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@ -175,7 +175,7 @@ linter:
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- prefer_is_not_operator
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- prefer_iterable_whereType
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# - prefer_mixin # https://github.com/dart-lang/language/issues/32
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# - prefer_null_aware_operators # disable until NNBD, see https://github.com/flutter/flutter/pull/32711#issuecomment-492930932
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- prefer_null_aware_operators
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# - prefer_relative_imports # not yet tested
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- prefer_single_quotes
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- prefer_spread_collections
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@ -267,7 +267,7 @@ class GestureArenaManager {
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bool _debugLogDiagnostic(int pointer, String message, [ _GestureArena? state ]) {
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assert(() {
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if (debugPrintGestureArenaDiagnostics) {
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final int? count = state != null ? state.members.length : null;
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final int? count = state?.members.length;
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final String s = count != 1 ? 's' : '';
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debugPrint('Gesture arena ${pointer.toString().padRight(4)} ❙ $message${ count != null ? " with $count member$s." : ""}');
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}
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@ -65,7 +65,7 @@ Widget buildFormFrame({
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iconEnabledColor: iconEnabledColor,
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isDense: isDense,
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isExpanded: isExpanded,
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items: items == null ? null : items.map<DropdownMenuItem<String>>((String item) {
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items: items?.map<DropdownMenuItem<String>>((String item) {
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return DropdownMenuItem<String>(
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key: ValueKey<String>(item),
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value: item,
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@ -54,9 +54,7 @@ Widget buildDropdown({
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Color? focusColor,
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Color? dropdownColor,
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}) {
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final List<DropdownMenuItem<String>>? listItems = items == null
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? null
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: items.map<DropdownMenuItem<String>>((String item) {
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final List<DropdownMenuItem<String>>? listItems = items?.map<DropdownMenuItem<String>>((String item) {
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return DropdownMenuItem<String>(
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key: ValueKey<String>(item),
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value: item,
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@ -692,7 +692,7 @@ class _IOSSimulatorLogReader extends DeviceLogReader {
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onListen: _start,
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onCancel: _stop,
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);
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_appName = app == null ? null : app.name.replaceAll('.app', '');
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_appName = app?.name?.replaceAll('.app', '');
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}
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final IOSSimulator device;
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