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authorGriffin Smith <grfn@gws.fyi>2020-07-12T21·29-0400
committerglittershark <grfn@gws.fyi>2020-07-13T23·50+0000
commitd5597b4784e04020b4ef4968a6887d4e22cc3edd (patch)
tree5c1a4760e6f1fe78d43b287d361c61db0060217b /third_party/nix/src/libexpr/attr-path.cc
parentd5505fcff9dc9ad76b4cb822cc642fdd0e238553 (diff)
feat(3p/nix): Statically pass bindings capacity where possible r/1285
To aid in making the decision of where to (currently just statically)
use a vector or btree as the backing implementation, add an extra
constructor argument to Bindings::NewGC for a capacity, and use
a (currently hardcoded at 32, for no good reason other than it felt like
a reasonable number) pivot to switch between our possible backing
implementations. Then, update all the call sites where it feels
reasonable that we know the capacity statically to *pass* that capacity
to the constructor.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I1858c161301a1cd0e83aeeb9a58839378869e71d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1124
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: isomer <isomer@tvl.fyi>
Diffstat (limited to 'third_party/nix/src/libexpr/attr-path.cc')
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