Ben Langmuir c6eade1c44 [code-completion] Disable diagnostics in @functionBuilder bodies ...

When performing code-completion inside the body of a @functionBuilder
closure/function, set the flag to suppress diagnostics. This works
around a big performance problem in some complex bodies that do not
typecheck, which is typical during code-completion. A real-world example
with SwitfUI went from ~50 seconds to 0.5. We do not disable diagnostics
in general because the diagnostic paths provide falback types that are
useful to code-completion.

rdar://52356229

2019-07-02 07:33:14 -07:00

9.2 KiB

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