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path: remove unnecessary string copies #14438

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tniessen wants to merge 5 commits into from
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path: remove unnecessary string copies #14438

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6aff340
path: remove unnecessary string copy
tniessen Jul 23, 2017
530f300
path: remove unnecessary string copy
tniessen Jul 23, 2017
8a07118
More optimizations
tniessen Jul 24, 2017
25d9601
add tests
tniessen Jul 24, 2017
fdbffaf
add more detailed tests
tniessen Jul 24, 2017
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4 changes: 2 additions & 2 deletions lib/path.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1040,7 +1040,7 @@ const win32 = {
if (len === 3) {
// `path` contains just a drive root, exit early to avoid
// unnecessary work
ret.root = ret.dir = path.slice(0, 3);
ret.root = ret.dir = path;
return ret;
}
isAbsolute = true;
Expand All @@ -1049,7 +1049,7 @@ const win32 = {
} else {
// `path` contains just a drive root, exit early to avoid
// unnecessary work
ret.root = ret.dir = path.slice(0, 2);
ret.root = ret.dir = path;
return ret;
}
}
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@TimothyGu TimothyGu Jul 24, 2017

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The

       ret.root = ret.dir = path[0];

below can be simplified to

       ret.root = ret.dir = path;

as well, AFAICT.

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@refack refack Jul 24, 2017

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Anyway could you add a comment // `(len <= 1)`

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