hokein created this revision.
hokein added a reviewer: sammccall.
Herald added a subscriber: kadircet.
Herald added a project: All.
hokein requested review of this revision.
Herald added a project: clang-tools-extra.
Fixes https://github.com/llvm/llvm-project/issues/59655
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D140551
Files:
clang-tools-extra/include-cleaner/lib/WalkAST.cpp
clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
Index: clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
===================================================================
--- clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
+++ clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
@@ -245,6 +245,16 @@
testWalk("struct S { $implicit^S(int); };", "S t = ^42;");
}
+TEST(WalkAST, Operator) {
+ // References to operators are not counted as uses.
+ testWalk("struct string {}; int operator+(string, string);",
+ "int k = string() ^+ string();");
+ testWalk("struct string {int operator+(string); }; ",
+ "int k = string() ^+ string();");
+ testWalk("struct string { friend int operator+(string, string); }; ",
+ "int k = string() ^+ string();");
+}
+
TEST(WalkAST, Functions) {
// Definition uses declaration, not the other way around.
testWalk("void $explicit^foo();", "void ^foo() {}");
Index: clang-tools-extra/include-cleaner/lib/WalkAST.cpp
===================================================================
--- clang-tools-extra/include-cleaner/lib/WalkAST.cpp
+++ clang-tools-extra/include-cleaner/lib/WalkAST.cpp
@@ -66,6 +66,16 @@
public:
ASTWalker(DeclCallback Callback) : Callback(Callback) {}
+ bool TraverseCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
+ // Operators are always ADL extension points, by design references to them
+ // doesn't count as uses. Ignore them by traversing arguments instead of
+ // children.
+ for (auto *Arg : S->arguments())
+ if (!TraverseStmt(Arg))
+ return false;
+ return true;
+ }
+
bool VisitDeclRefExpr(DeclRefExpr *DRE) {
report(DRE->getLocation(), DRE->getFoundDecl());
return true;
Index: clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
===================================================================
--- clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
+++ clang-tools-extra/include-cleaner/unittests/WalkASTTest.cpp
@@ -245,6 +245,16 @@
testWalk("struct S { $implicit^S(int); };", "S t = ^42;");
}
+TEST(WalkAST, Operator) {
+ // References to operators are not counted as uses.
+ testWalk("struct string {}; int operator+(string, string);",
+ "int k = string() ^+ string();");
+ testWalk("struct string {int operator+(string); }; ",
+ "int k = string() ^+ string();");
+ testWalk("struct string { friend int operator+(string, string); }; ",
+ "int k = string() ^+ string();");
+}
+
TEST(WalkAST, Functions) {
// Definition uses declaration, not the other way around.
testWalk("void $explicit^foo();", "void ^foo() {}");
Index: clang-tools-extra/include-cleaner/lib/WalkAST.cpp
===================================================================
--- clang-tools-extra/include-cleaner/lib/WalkAST.cpp
+++ clang-tools-extra/include-cleaner/lib/WalkAST.cpp
@@ -66,6 +66,16 @@
public:
ASTWalker(DeclCallback Callback) : Callback(Callback) {}
+ bool TraverseCXXOperatorCallExpr(CXXOperatorCallExpr *S) {
+ // Operators are always ADL extension points, by design references to them
+ // doesn't count as uses. Ignore them by traversing arguments instead of
+ // children.
+ for (auto *Arg : S->arguments())
+ if (!TraverseStmt(Arg))
+ return false;
+ return true;
+ }
+
bool VisitDeclRefExpr(DeclRefExpr *DRE) {
report(DRE->getLocation(), DRE->getFoundDecl());
return true;
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