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feat: Codegen feature flags (#28920)
This commit adds "deno_features" crate that contains definitions of all unstable features in Deno. Based on these definitions, both Rust and JS code is generated ensuring that the two are always in sync. In addition some of flag handling was rewritten to use the generated definitions, instead of hand rolling these flag definitions. --------- Co-authored-by: snek <snek@deno.com>
This commit is contained in:
Bartek Iwańczuk
GitHub
parent
4924731ac3
commit
189ccffdb9
19 changed files with 701 additions and 284 deletions
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@ -38,6 +38,7 @@ use deno_npm::NpmSystemInfo;
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use deno_path_util::normalize_path;
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use deno_path_util::url_to_file_path;
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use deno_runtime::deno_permissions::SysDescriptor;
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use deno_runtime::UnstableFeatureKind;
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use deno_telemetry::OtelConfig;
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use deno_telemetry::OtelConsoleConfig;
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use deno_telemetry::OtelPropagators;
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@ -4428,114 +4429,41 @@ impl CommandExt for Command {
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.action(ArgAction::SetTrue)
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.hide(matches!(cfg, UnstableArgsConfig::None))
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.display_order(next_display_order())
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).arg(
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Arg::new("unstable-bare-node-builtins")
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.long("unstable-bare-node-builtins")
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.help("Enable unstable bare node builtins feature")
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.env("DENO_UNSTABLE_BARE_NODE_BUILTINS")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.long_help(match cfg {
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UnstableArgsConfig::None => None,
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UnstableArgsConfig::ResolutionOnly
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| UnstableArgsConfig::ResolutionAndRuntime => Some("true"),
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})
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order()),
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).arg(
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Arg::new("unstable-detect-cjs")
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.long("unstable-detect-cjs")
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.help("Treats ambiguous .js, .jsx, .ts, .tsx files as CommonJS modules in more cases")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.long_help(match cfg {
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UnstableArgsConfig::None => None,
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UnstableArgsConfig::ResolutionOnly
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| UnstableArgsConfig::ResolutionAndRuntime => Some("true"),
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})
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order())
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).arg(
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Arg::new("unstable-byonm")
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.long("unstable-byonm")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order()),
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).arg(
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Arg::new("unstable-lazy-dynamic-imports")
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.long("unstable-lazy-dynamic-imports")
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.help("Lazily loads statically analyzable dynamic imports when not running with type checking. Warning: This may change the order of semver specifier resolution.")
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.env("DENO_UNSTABLE_LAZY_DYNAMIC_IMPORTS")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.long_help(match cfg {
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UnstableArgsConfig::None => None,
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UnstableArgsConfig::ResolutionOnly | UnstableArgsConfig::ResolutionAndRuntime => Some("true")
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})
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order())
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).arg(
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Arg::new("unstable-sloppy-imports")
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.long("unstable-sloppy-imports")
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.help("Enable unstable resolving of specifiers by extension probing, .js to .ts, and directory probing")
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.env("DENO_UNSTABLE_SLOPPY_IMPORTS")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.long_help(match cfg {
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UnstableArgsConfig::None => None,
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UnstableArgsConfig::ResolutionOnly | UnstableArgsConfig::ResolutionAndRuntime => Some("true")
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})
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order())
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).arg(
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Arg::new("unstable-npm-lazy-caching")
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.long("unstable-npm-lazy-caching")
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.help("Enable unstable lazy caching of npm dependencies, downloading them only as needed (disabled: all npm packages in package.json are installed on startup; enabled: only npm packages that are actually referenced in an import are installed")
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.env("DENO_UNSTABLE_NPM_LAZY_CACHING")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.hide(true)
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order()),
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).arg(
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Arg::new("unstable-lockfile-v5")
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.long("unstable-lockfile-v5")
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.help("Enable unstable lockfile v5")
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.env("DENO_UNSTABLE_LOCKFILE_V5")
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.value_parser(FalseyValueParser::new())
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.action(ArgAction::SetTrue)
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.help_heading(UNSTABLE_HEADING)
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.hide(true)
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.display_order(next_display_order()),
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);
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for granular_flag in crate::UNSTABLE_GRANULAR_FLAGS.iter() {
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cmd = cmd.arg(
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Arg::new(format!("unstable-{}", granular_flag.name))
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.long(format!("unstable-{}", granular_flag.name))
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.help(granular_flag.help_text)
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.action(ArgAction::SetTrue)
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.hide(true)
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.help_heading(UNSTABLE_HEADING)
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// we don't render long help, so using it here as a sort of metadata
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.long_help(if granular_flag.show_in_help {
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match cfg {
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UnstableArgsConfig::None | UnstableArgsConfig::ResolutionOnly => {
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None
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}
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UnstableArgsConfig::ResolutionAndRuntime => Some("true"),
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}
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} else {
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None
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})
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.display_order(next_display_order()),
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);
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for feature in crate::UNSTABLE_FEATURES.iter() {
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let mut arg = Arg::new(feature.flag_name)
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.long(feature.flag_name)
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.help(feature.help_text)
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.action(ArgAction::SetTrue)
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.value_parser(FalseyValueParser::new())
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.hide(true)
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.help_heading(UNSTABLE_HEADING)
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.display_order(next_display_order());
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// TODO(bartlomieju):
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// Value of `.long_help()` is actuall a metadata. It should be rewritten to use
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// Clap's `ArgExt` instead
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let mut long_help_val = None;
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if feature.show_in_help {
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if matches!(cfg, UnstableArgsConfig::ResolutionOnly)
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&& matches!(feature.kind, UnstableFeatureKind::Cli)
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{
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long_help_val = Some("true");
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}
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if matches!(cfg, UnstableArgsConfig::ResolutionAndRuntime) {
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long_help_val = Some("true");
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}
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}
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arg = arg.long_help(long_help_val);
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if let Some(env_var_name) = feature.env_var {
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arg = arg.env(env_var_name);
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}
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cmd = cmd.arg(arg);
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}
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cmd
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@ -6142,6 +6070,7 @@ fn unstable_args_parse(
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flags.unstable_config.legacy_flag_enabled = true;
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}
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// TODO(bartlomieju): this should be factored out since these are configured via UNSTABLE_FEATURES
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flags.unstable_config.bare_node_builtins =
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matches.get_flag("unstable-bare-node-builtins");
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flags.unstable_config.detect_cjs = matches.get_flag("unstable-detect-cjs");
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@ -6153,12 +6082,12 @@ fn unstable_args_parse(
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matches.get_flag("unstable-npm-lazy-caching");
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if matches!(cfg, UnstableArgsConfig::ResolutionAndRuntime) {
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for granular_flag in crate::UNSTABLE_GRANULAR_FLAGS {
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if matches.get_flag(&format!("unstable-{}", granular_flag.name)) {
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for feature in crate::UNSTABLE_FEATURES {
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if matches.get_flag(feature.flag_name) {
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flags
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.unstable_config
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.features
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.push(granular_flag.name.to_string());
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.push(feature.name.to_string());
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}
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}
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}
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@ -11752,7 +11681,7 @@ mod tests {
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unstable_config: UnstableConfig {
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bare_node_builtins: true,
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sloppy_imports: false,
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features: svec!["ffi", "worker-options"],
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features: svec!["bare-node-builtins", "ffi", "worker-options"],
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..Default::default()
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},
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..Flags::default()
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