diff options
Diffstat (limited to 'resources/resource_transformers/js/options.go')
| -rw-r--r-- | resources/resource_transformers/js/options.go | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/resources/resource_transformers/js/options.go b/resources/resource_transformers/js/options.go index 5e74982d3..84a6c1a78 100644 --- a/resources/resource_transformers/js/options.go +++ b/resources/resource_transformers/js/options.go @@ -70,6 +70,16 @@ type Options struct { // What to use instead of React.Fragment. JSXFragment string + // There is/was a bug in WebKit with severe performance issue with the tracking + // of TDZ checks in JavaScriptCore. + // + // Enabling this flag removes the TDZ and `const` assignment checks and + // may improve performance of larger JS codebases until the WebKit fix + // is in widespread use. + // + // See https://bugs.webkit.org/show_bug.cgi?id=199866 + AvoidTDZ bool + mediaType media.Type outDir string contents string @@ -339,6 +349,8 @@ func toBuildOptions(opts Options) (buildOptions api.BuildOptions, err error) { JSXFactory: opts.JSXFactory, JSXFragment: opts.JSXFragment, + AvoidTDZ: opts.AvoidTDZ, + Tsconfig: opts.tsConfig, Stdin: &api.StdinOptions{ |