[clang] [clang-tools-extra] [clang] Include explicit object methods in overload suggestions (PR #154041)
Mythreya Kuricheti via cfe-commits
cfe-commits at lists.llvm.org
Mon Aug 18 02:18:57 PDT 2025
https://github.com/MythreyaK updated https://github.com/llvm/llvm-project/pull/154041
>From 8df889319e8146db958d027d5dee8ed22d6c9d3c Mon Sep 17 00:00:00 2001
From: Mythreya Kuricheti <git at mythreya.dev>
Date: Sat, 16 Aug 2025 15:48:02 -0700
Subject: [PATCH 1/3] [clang] Include explicit object methods in overload
suggestions
---
.../clangd/unittests/CodeCompleteTests.cpp | 119 ++++++++++++++++++
clang/lib/Sema/SemaCodeComplete.cpp | 10 +-
2 files changed, 128 insertions(+), 1 deletion(-)
diff --git a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
index 1a1c32c241602..f5989eca4e1b5 100644
--- a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
+++ b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
@@ -4473,6 +4473,125 @@ TEST(CompletionTest, SkipExplicitObjectParameter) {
snippetSuffix(""))));
}
}
+
+TEST(CompletionTest, ListExplicitObjectOverloads) {
+ Annotations Code(R"cpp(
+ struct S {
+ void foo1(int a);
+ void foo2(int a) const;
+ void foo3(this const S& self, int a);
+ void foo4(this S& self, int a);
+ };
+
+ void S::foo1(int a) {
+ this->$c1^;
+ }
+
+ void S::foo2(int a) const {
+ this->$c2^;
+ }
+
+ void S::foo3(this const S& self, int a) {
+ self.$c3^;
+ }
+
+ void S::foo4(this S& self, int a) {
+ self.$c4^;
+ }
+
+ void test1(S s) {
+ s.$c5^;
+ }
+
+ void test2(const S s) {
+ s.$c6^;
+ }
+ )cpp");
+
+ auto TU = TestTU::withCode(Code.code());
+ TU.ExtraArgs = {"-std=c++23"};
+
+ auto Preamble = TU.preamble();
+ ASSERT_TRUE(Preamble);
+
+ CodeCompleteOptions Opts{};
+
+ MockFS FS;
+ auto Inputs = TU.inputs(FS);
+
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c1"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
+ }
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c2"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})"))));
+ }
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c3"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})"))));
+ }
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c4"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
+ }
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c5"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
+ }
+ {
+ auto Result = codeComplete(testPath(TU.Filename), Code.point("c6"),
+ Preamble.get(), Inputs, Opts);
+ EXPECT_THAT(Result.Completions,
+ UnorderedElementsAre(
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a)" /* const */),
+ snippetSuffix("(${1:int a})"))));
+ }
+}
} // namespace
} // namespace clangd
} // namespace clang
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index e4f276086af25..d17b46f8b4070 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -1428,10 +1428,18 @@ void ResultBuilder::AddResult(Result R, DeclContext *CurContext,
AdjustResultPriorityForDecl(R);
+ // Account for explicit object parameter
+ const auto getQualifiers = [&](const CXXMethodDecl *MethodDecl) {
+ if (MethodDecl->isExplicitObjectMemberFunction())
+ return MethodDecl->getFunctionObjectParameterType().getQualifiers();
+ else
+ return MethodDecl->getMethodQualifiers();
+ };
+
if (HasObjectTypeQualifiers)
if (const auto *Method = dyn_cast<CXXMethodDecl>(R.Declaration))
if (Method->isInstance()) {
- Qualifiers MethodQuals = Method->getMethodQualifiers();
+ Qualifiers MethodQuals = getQualifiers(Method);
if (ObjectTypeQualifiers == MethodQuals)
R.Priority += CCD_ObjectQualifierMatch;
else if (ObjectTypeQualifiers - MethodQuals) {
>From 9f149acdf53a00752639fb4e174dffcd900205e2 Mon Sep 17 00:00:00 2001
From: Mythreya Kuricheti <git at mythreya.dev>
Date: Mon, 18 Aug 2025 00:45:13 -0700
Subject: [PATCH 2/3] Add const to signature string
---
.../clangd/unittests/CodeCompleteTests.cpp | 96 +++++++++----------
clang/lib/Sema/SemaCodeComplete.cpp | 27 ++++++
2 files changed, 75 insertions(+), 48 deletions(-)
diff --git a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
index f5989eca4e1b5..cf07e11d6441e 100644
--- a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
+++ b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
@@ -4522,74 +4522,74 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c1"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo1"), signature("(int a)"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo4"), signature("(int a)"),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
}
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c2"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})"))));
}
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c3"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})"))));
}
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c4"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo1"), signature("(int a)"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo4"), signature("(int a)"),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
}
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c5"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo1"), signature("(int a)"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo4"), signature("(int a)"),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo1"), signature("(int a)"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo4"), signature("(int a)"),
+ snippetSuffix("(${1:int a})"))));
}
{
auto Result = codeComplete(testPath(TU.Filename), Code.point("c6"),
Preamble.get(), Inputs, Opts);
- EXPECT_THAT(Result.Completions,
- UnorderedElementsAre(
- AllOf(named("foo2"), signature("(int a) const"),
- snippetSuffix("(${1:int a})")),
- AllOf(named("foo3"), signature("(int a)" /* const */),
- snippetSuffix("(${1:int a})"))));
+ EXPECT_THAT(
+ Result.Completions,
+ UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})")),
+ AllOf(named("foo3"), signature("(int a) const"),
+ snippetSuffix("(${1:int a})"))));
}
}
} // namespace
diff --git a/clang/lib/Sema/SemaCodeComplete.cpp b/clang/lib/Sema/SemaCodeComplete.cpp
index d17b46f8b4070..af900c777a707 100644
--- a/clang/lib/Sema/SemaCodeComplete.cpp
+++ b/clang/lib/Sema/SemaCodeComplete.cpp
@@ -3418,9 +3418,36 @@ static void AddQualifierToCompletionString(CodeCompletionBuilder &Result,
Result.AddTextChunk(Result.getAllocator().CopyString(PrintedNNS));
}
+// Sets the function qualifiers completion string by inspecting the explicit
+// object
+static void AddCXXExplicitObjectFunctionTypeQualsToCompletionString(
+ CodeCompletionBuilder &Result, const CXXMethodDecl *Function) {
+ const auto Quals = Function->getFunctionObjectParameterType();
+
+ if (!Quals.hasQualifiers())
+ return;
+
+ std::string QualsStr;
+ if (Quals.getQualifiers().hasConst())
+ QualsStr += " const";
+ if (Quals.getQualifiers().hasVolatile())
+ QualsStr += " volatile";
+ if (Quals.getQualifiers().hasRestrict())
+ QualsStr += " restrict";
+ Result.AddInformativeChunk(Result.getAllocator().CopyString(QualsStr));
+}
+
static void
AddFunctionTypeQualsToCompletionString(CodeCompletionBuilder &Result,
const FunctionDecl *Function) {
+ if (auto *CxxMethodDecl = llvm::dyn_cast_if_present<CXXMethodDecl>(Function);
+ CxxMethodDecl && CxxMethodDecl->hasCXXExplicitFunctionObjectParameter()) {
+ // if explicit object method, infer quals from the object parameter
+ AddCXXExplicitObjectFunctionTypeQualsToCompletionString(Result,
+ CxxMethodDecl);
+ return;
+ }
+
const auto *Proto = Function->getType()->getAs<FunctionProtoType>();
if (!Proto || !Proto->getMethodQuals())
return;
>From 524cde55cc813627dc00611e91e7952aab5c157c Mon Sep 17 00:00:00 2001
From: Mythreya Kuricheti <git at mythreya.dev>
Date: Mon, 18 Aug 2025 02:05:58 -0700
Subject: [PATCH 3/3] Update tests
---
.../clangd/unittests/CodeCompleteTests.cpp | 13 ++++
.../skip-explicit-object-parameter.cpp | 64 ++++++++++++++++++-
2 files changed, 76 insertions(+), 1 deletion(-)
diff --git a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
index cf07e11d6441e..846e622575b58 100644
--- a/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
+++ b/clang-tools-extra/clangd/unittests/CodeCompleteTests.cpp
@@ -4479,6 +4479,7 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
struct S {
void foo1(int a);
void foo2(int a) const;
+ void foo2(this const S& self, float a);
void foo3(this const S& self, int a);
void foo4(this S& self, int a);
};
@@ -4528,6 +4529,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
snippetSuffix("(${1:int a})")),
AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
AllOf(named("foo4"), signature("(int a)"),
@@ -4540,6 +4543,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
Result.Completions,
UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})"))));
}
@@ -4550,6 +4555,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
Result.Completions,
UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})"))));
}
@@ -4562,6 +4569,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
snippetSuffix("(${1:int a})")),
AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
AllOf(named("foo4"), signature("(int a)"),
@@ -4576,6 +4585,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
snippetSuffix("(${1:int a})")),
AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
AllOf(named("foo4"), signature("(int a)"),
@@ -4588,6 +4599,8 @@ TEST(CompletionTest, ListExplicitObjectOverloads) {
Result.Completions,
UnorderedElementsAre(AllOf(named("foo2"), signature("(int a) const"),
snippetSuffix("(${1:int a})")),
+ AllOf(named("foo2"), signature("(float a) const"),
+ snippetSuffix("(${1:float a})")),
AllOf(named("foo3"), signature("(int a) const"),
snippetSuffix("(${1:int a})"))));
}
diff --git a/clang/test/CodeCompletion/skip-explicit-object-parameter.cpp b/clang/test/CodeCompletion/skip-explicit-object-parameter.cpp
index 587d6cb044d19..2a3498c904628 100644
--- a/clang/test/CodeCompletion/skip-explicit-object-parameter.cpp
+++ b/clang/test/CodeCompletion/skip-explicit-object-parameter.cpp
@@ -42,7 +42,69 @@ int func3() {
int func4() {
// TODO (&A::foo)(
- (&A::bar)(
+ (&A::bar)()
}
// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-2):13 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC5 %s
// CHECK-CC5: OVERLOAD: [#void#](<#A#>, int)
+
+struct S {
+ void foo1(int a);
+ void foo2(int a) const;
+ void foo2(this const S& self, float a);
+ void foo3(this const S& self, int a);
+ void foo4(this S& self, int a);
+};
+
+void S::foo1(int a) {
+ this->;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):9 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC6 %s
+// CHECK-CC6: COMPLETION: foo1 : [#void#]foo1(<#int a#>)
+// CHECK-CC6: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC6: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC6: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+// CHECK-CC6: COMPLETION: foo4 : [#void#]foo4(<#int a#>)
+}
+
+void S::foo2(int a) const {
+ this->;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):9 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC7 %s
+// CHECK-CC7: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC7: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC7: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+}
+
+void S::foo3(this const S& self, int a) {
+ self.;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):8 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC8 %s
+// CHECK-CC8: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC8: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC8: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+}
+
+void S::foo4(this S& self, int a) {
+ self.;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):8 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC9 %s
+// CHECK-CC9: COMPLETION: foo1 : [#void#]foo1(<#int a#>)
+// CHECK-CC9: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC9: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC9: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+// CHECK-CC9: COMPLETION: foo4 : [#void#]foo4(<#int a#>)
+}
+
+void test1(S s) {
+ s.;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):5 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC10 %s
+// CHECK-CC10: COMPLETION: foo1 : [#void#]foo1(<#int a#>)
+// CHECK-CC10: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC10: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC10: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+// CHECK-CC10: COMPLETION: foo4 : [#void#]foo4(<#int a#>)
+}
+
+void test2(const S s) {
+ s.;
+// RUN: %clang_cc1 -fsyntax-only -code-completion-at=%s:%(line-1):5 -std=c++23 %s | FileCheck -check-prefix=CHECK-CC11 %s
+// CHECK-CC11: COMPLETION: foo2 : [#void#]foo2(<#int a#>)[# const#]
+// CHECK-CC11: COMPLETION: foo2 : [#void#]foo2(<#float a#>)[# const#]
+// CHECK-CC11: COMPLETION: foo3 : [#void#]foo3(<#int a#>)[# const#]
+}
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