Do not pass index store options if indexing is disabled #903
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We were passing `-index-store-compress` to the compiler even though we don’t pass `-index-store-path` if `INDEX_STORE_ENABLE = YES` but `COMPILER_INDEX_STORE_ENABLE = NO`. This is because `CLANG_INDEX_STORE_ENABLE` still evaluated to `YES` and thus the `Condition` of `CLANG_INDEX_STORE_COMPRESS` also evaluated to `YES` but we didn’t pass `-index-store-path` because the condition of `CLANG_INDEX_STORE_ENABLE` evaluated to `NO`. This was a misconception on my side when I added these build settings because I assumed that the `Condition` would influence the value of the build setting instead of just influencing `ComandLineArgs`. I don’t like how we need to repeat the same condition in multiple build settings now but haven’t found a better solution. rdar://164248532
ahoppen
requested review from
aciidgh,
jakepetroules,
mhrawdon,
neonichu and
owenv
as code owners
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@swift-ci test |
jakepetroules
approved these changes
Nov 11, 2025
neonichu
approved these changes
Nov 12, 2025
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We were passing
-index-store-compressto the compiler even though we don’t pass-index-store-pathifINDEX_STORE_ENABLE = YESbutCOMPILER_INDEX_STORE_ENABLE = NO. This is becauseCLANG_INDEX_STORE_ENABLEstill evaluated toYESand thus theConditionofCLANG_INDEX_STORE_COMPRESSalso evaluated toYESbut we didn’t pass-index-store-pathbecause the condition ofCLANG_INDEX_STORE_ENABLEevaluated toNO.This was a misconception on my side when I added these build settings because I assumed that the
Conditionwould influence the value of the build setting instead of just influencingComandLineArgs.I don’t like how we need to repeat the same condition in multiple build settings now but haven’t found a better solution.
rdar://164248532