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[cxx-interop] emit correct parameter name in the inline C++ function … #42100

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Merged
merged 1 commit into from
Mar 30, 2022
Merged

[cxx-interop] emit correct parameter name in the inline C++ function … #42100

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2 changes: 1 addition & 1 deletion lib/PrintAsClang/DeclAndTypePrinter.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -881,7 +881,7 @@ class DeclAndTypePrinter::Implementation
size_t index = 1;
interleaveComma(*params, os, [&](const ParamDecl *param) {
if (param->hasName()) {
os << param->getName();
ClangSyntaxPrinter(os).printIdentifier(param->getName().str());
} else {
os << "_" << index;
}
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11 changes: 11 additions & 0 deletions test/Interop/SwiftToCxx/functions/swift-function-argument-keyword-in-cxx.swift
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@@ -0,0 +1,11 @@
// RUN: %empty-directory(%t)
// RUN: %target-swift-frontend %s -typecheck -module-name Functions -clang-header-expose-public-decls -emit-clang-header-path %t/functions.h
// RUN: %FileCheck %s < %t/functions.h

// RUN: %check-interop-cxx-header-in-clang(%t/functions.h)

// CHECK: inline void testKeywordArgument(swift::Int register_) noexcept
// CHECK-NEXT: return _impl::$s9Functions19testKeywordArgument8registerySi_tF(register_);

func testKeywordArgument(register: Int) {
}