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[dart2wasm] Add --extra-compiler-option to dart compile wasm
command
By allowing a pass-through of arbitrary arguments to the dart2wasm compiler we allow flutter to use options which * aren't relevant for end-users of `dart compile wasm` (e.g. such as providing different platform dill file) * we may break at any point in time (though in coordination with flutter) Issue https://github.com/dart-lang/sdk/issues/54675 Change-Id: I7da2b69a8c642f8bfaa6546bf9c1a6c3833d55fa Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/349720 Reviewed-by: Slava Egorov <vegorov@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>
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@ -516,6 +516,12 @@ class CompileWasmCommand extends CompileSubcommandCommand {
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valueHelp: 'page count',
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hide: !verbose,
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)
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..addMultiOption(
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'extra-compiler-option',
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abbr: 'E',
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help: 'An extra option to pass to the dart2wasm compiler.',
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hide: !verbose,
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)
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..addOption(
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'optimization-level',
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abbr: 'O',
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@ -590,6 +596,7 @@ class CompileWasmCommand extends CompileSubcommandCommand {
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final sdkPath = path.absolute(sdk.sdkPath);
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final packages = args[packagesOption.flag];
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final defines = args[defineOption.flag] as List<String>;
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final extraCompilerOptions = args['extra-compiler-option'] as List<String>;
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int? maxPages;
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if (args['shared-memory'] != null) {
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@ -632,6 +639,7 @@ class CompileWasmCommand extends CompileSubcommandCommand {
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// Then we pass flags that were opted into explicitly.
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if (args['name-section']) '--name-section',
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if (args['minify']) '--minify',
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...extraCompilerOptions,
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path.absolute(sourcePath),
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outputFile,
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