Fix RAM bundle passing the deps function (not its result) to getTransformOptions#1757
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durvesh1992 wants to merge 1 commit into
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Fix RAM bundle passing the deps function (not its result) to getTransformOptions#1757durvesh1992 wants to merge 1 commit into
durvesh1992 wants to merge 1 commit into
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…formOptions getRamBundleInfo gives custom getTransformOptions a callback to look up a module's transitive dependencies, but it called `Array.from(getDependencies)` on the function itself instead of `Array.from(getDependencies(x))`. Since the closure has arity 1, Array.from treated it as array-like and returned [undefined], so any getTransformOptions relying on this callback received garbage regardless of the file queried. Invoke getDependencies(x). Existing tests never exercised the callback, which masked this. Adds a regression test that calls the callback and asserts the real transitive deps (fails before / passes after).
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Summary
getRamBundleInfohands customgetTransformOptionsa callback to look up a module's transitive dependencies. But it builds that callback as:getDependenciesis the function(filePath) => getTransitiveDependencies(filePath, graph). This callsArray.fromon the function itself and ignoresx— it never invokesgetDependencies. Since the closure has arity 1,Array.fromtreats it as array-like via.lengthand returns[undefined]. So anygetTransformOptionsthat uses this callback to computepreloadedModules/ramGroupsreceives[undefined]for every file it asks about.Fix
Test plan
Added a regression test that supplies a
getTransformOptionswhich calls the callback for/root/foo.jsand asserts it returns foo's transitive deps (bar,baz,qux). Fails before ([undefined]), passes after. Existing tests + snapshots unchanged (4 passed, 2 snapshots).