build members of keyof mapped types lazily - #64526

Draft

Max Schwenk (maschwenk) wants to merge 12 commits into

microsoft:mainfrom

maschwenk:perf/lazy-mapped-members

Commits on Sep 27, 2026

Resolve members of instantiated class and interface references lazily

Max Schwenk (maschwenk)
and
Claude (claude)
committed
85518a5
Answer shape queries on instantiated references without resolving members

Max Schwenk (maschwenk)
and
Claude (claude)
committed
f035906
Don't record members that are about to be resolved in full

Max Schwenk (maschwenk)
and
Claude (claude)
committed
2efc063
Check for resolved members before taking the lazy paths

Max Schwenk (maschwenk)
and
Claude (claude)
committed
af2719b
Read lazy member tables through the regular accessors

Max Schwenk (maschwenk)
and
Claude (claude)
committed
cdac4e3

Commits on Sep 29, 2026

Merge main into perf/declared-shape-queries
Max Schwenk (maschwenk)
committed
0a06ad9
Drop the partial member handling now that #64372 is in

Max Schwenk (maschwenk)
and
Claude (claude)
committed
39ce30c
Simplify the lazy member lookup

Max Schwenk (maschwenk)
and
Claude (claude)
committed
d40b4bd
Consolidate the tests into one

Max Schwenk (maschwenk)
and
Claude (claude)
committed
a5a5da9
Trim comments

Max Schwenk (maschwenk)
and
Claude (claude)
committed
2aefafb
Resolve members of keyof mapped types lazily

Max Schwenk (maschwenk)
and
Claude (claude)
committed
4df7b7d
Add a test for lazily resolved mapped type members

Max Schwenk (maschwenk)
and
Claude (claude)
committed
05ead00