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fix: js fallback sourcemap content should be using original content #15135
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Should this be
() => string
in case it doesn't end up being used to save the file read?There was a problem hiding this comment.
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send
function is a sync function and is part of the public API. ThereforeoriginalContent
cannot be() => Promise<string>
. To satisfy() => string
, we need to changefsp.readFile
tofs.readFileSync
ingetOriginalContent
. But I guess async is better for perf.There was a problem hiding this comment.
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It would be good to find a way to avoid the perf regression. In a full .ts code base, there will now be a new read for each transformed file that won't be used, no? I think at one point we could have an internal
send
function that is async (everywhere internal usage could be changed to await), but given that it may be complex, for now we could add a guard at https://github.com/vitejs/vite/pull/15135/files#diff-6d94d6934079a4f09596acc9d3f3d38ea426c6f8e98cd766567335d42679ca7cR208, with a comment? Even if it is redundant, we at least save a few reads?There was a problem hiding this comment.
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Ah, OK. I noticed I was missing
type === 'js'
.There was a problem hiding this comment.
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Just to make it clear, this won't happen.
.ts
files will always have source maps, somap == null
is alwaysfalse
.