Scopes: Re-purpose isScope as isFunctionScope for stack trace processing
#114
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szuend
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isScope as isFunctionScope for stack trace processingisScope as isFunctionScope for stack trace processing
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@hbenl @takikawa @jridgewell Any thoughts on this one? I wasn't sure if it was blocking progress on the Scopes proposal implementations or not! |
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The change seems fine, but I don't really have an opinion one way or the other because it doesn't affect the build-tooling side (only the consuming side). If @szuend thinks this makes consuming the ranges easier for dev-tools, then let's merge. |
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This CL aligns DevTools with an in-flight (but approved) spec PR: tc39/source-map#114. We need the flag to properly hide stack frames from stack traces that got inserted by transpilers and don't have a corresponding function in authored code. The flag also helps when dealing with inlining. [email protected] Bug: 40277685 Change-Id: Iafef35e6ccdb0acf56b2fa91aafbdb44f03c6bce Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5836934 Commit-Queue: Simon Zünd <[email protected]> Reviewed-by: Kim-Anh Tran <[email protected]>
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This PR renames
isScopetoisFunctionScope. The intention is to mark each generated range that is also something callable (functions, methods, arrow functions, accessors, constructors, ...). The purpose is twofold:range.isFunctionScope && !range.hasDefinition. See Scopes: support for hiding new injected scopes from the stack trace #113 for a detailed discussions and also why aisHiddenflag is not sufficient.Note that for 1. in particular this is a great boon for generators. If we don't have this flag then generators have to "mask" callsites for "hidden functions" instead. Which is a lot trickier especially if not all call-sites are known by a generator. Again, see #113 for an example/discussion.