https://github.com/Michael137 updated
https://github.com/llvm/llvm-project/pull/124305
>From 2fbabc9802e09a175bd71624b2ff89a2d9b7f3a1 Mon Sep 17 00:00:00 2001
From: Michael Buch <michaelbuc...@gmail.com>
Date: Fri, 24 Jan 2025 11:59:42 +0000
Subject: [PATCH] [clang][ASTImporter][test] Add test for importing explicit
object parameter
Adds test that confirms that we import the explicit object parameter location
for `ParmVarDecl`s. This is how Clang determines whether a parameter
`isExplicitObjectParamater`. The LLDB expression evaluator relies on this for
calling "explicit object member functions".
---
clang/unittests/AST/ASTImporterTest.cpp | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/clang/unittests/AST/ASTImporterTest.cpp
b/clang/unittests/AST/ASTImporterTest.cpp
index 791248e7a394f1..153c2629fb3f99 100644
--- a/clang/unittests/AST/ASTImporterTest.cpp
+++ b/clang/unittests/AST/ASTImporterTest.cpp
@@ -3441,6 +3441,7 @@ TEST_P(ASTImporterOptionSpecificTestBase,
ImportParmVarDecl) {
ASSERT_TRUE(FromVar);
ASSERT_TRUE(FromVar->hasUninstantiatedDefaultArg());
ASSERT_TRUE(FromVar->getUninstantiatedDefaultArg());
+ ASSERT_FALSE(FromVar->isExplicitObjectParameter());
const auto *ToVar = Import(FromVar, Lang_CXX11);
EXPECT_TRUE(ToVar);
@@ -3448,6 +3449,25 @@ TEST_P(ASTImporterOptionSpecificTestBase,
ImportParmVarDecl) {
EXPECT_TRUE(ToVar->getUninstantiatedDefaultArg());
EXPECT_NE(FromVar->getUninstantiatedDefaultArg(),
ToVar->getUninstantiatedDefaultArg());
+ EXPECT_FALSE(ToVar->isExplicitObjectParameter());
+}
+
+TEST_P(ASTImporterOptionSpecificTestBase, ImportParmVarDecl_Explicit) {
+ const auto *Code = R"(
+ struct Wrapper {
+ void func(this Wrapper) {}
+ };
+ )";
+ Decl *FromTU = getTuDecl(Code, Lang_CXX23);
+ auto *FromVar = FirstDeclMatcher<ParmVarDecl>().match(FromTU, parmVarDecl());
+ ASSERT_TRUE(FromVar);
+ ASSERT_TRUE(FromVar->isExplicitObjectParameter());
+
+ const auto *ToVar = Import(FromVar, Lang_CXX23);
+ EXPECT_TRUE(ToVar);
+ EXPECT_TRUE(ToVar->isExplicitObjectParameter());
+ EXPECT_EQ(ToVar->getExplicitObjectParamThisLoc(),
+ FromVar->getExplicitObjectParamThisLoc());
}
TEST_P(ASTImporterOptionSpecificTestBase, ImportOfNonEquivalentField) {
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