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[Driver] Avoid using response files for SourceKit #81555

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Merged
merged 1 commit into from
May 16, 2025
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Merged

[Driver] Avoid using response files for SourceKit #81555

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5 changes: 5 additions & 0 deletions lib/Driver/ToolChain.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,11 @@ std::optional<Job::ResponseFileInfo>
ToolChain::getResponseFileInfo(const Compilation &C, const char *executablePath,
const ToolChain::InvocationInfo &invocationInfo,
const ToolChain::JobContext &context) const {
// Never use a response file if this is a dummy driver for SourceKit, we
// just want the frontend arguments.
if (getDriver().isDummyDriverForFrontendInvocation())
return std::nullopt;

const bool forceResponseFiles =
C.getArgs().hasArg(options::OPT_driver_force_response_files);
assert((invocationInfo.allowsResponseFiles || !forceResponseFiles) &&
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4 changes: 4 additions & 0 deletions test/SourceKit/Misc/rdar98880399.swift
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@@ -0,0 +1,4 @@
// Make sure we don't create any temporary files.
// RUN: %empty-directory(%t)
// RUN: env TMP=%t TMPDIR=%t %sourcekitd-test -req=open %s -- %s -driver-force-response-files
// RUN: not ls %t/* >/dev/null 2>&1