fix(ide): restrict workspace package selector aliases

wellwei · Aug 5, 2026 · Aug 5, 2026 · Aug 5, 2026 · Aug 5, 2026 · Aug 5, 2026
commit 1ad07f9dcdb967977a218004e922c708edc0bf98
diff --git a/src/ide/inspect.cppm b/src/ide/inspect.cppm
@@ -69,9 +69,6 @@ bool matches_selector(const Candidate& candidate, std::string_view selector,
                       const std::filesystem::path& workspaceRoot) {
     if (candidate.name == selector || candidate.workspacePath == selector)
         return true;
-    if (const auto dot = candidate.name.rfind('.');
-        dot != std::string::npos && candidate.name.substr(dot + 1) == selector)
-        return true;
     if (candidate.root.filename() == selector)
         return true;
     std::error_code ec;

diff --git a/tests/unit/test_ide_snapshot.cpp b/tests/unit/test_ide_snapshot.cpp
@@ -177,6 +177,16 @@ TEST(IdeSnapshotInspect, PackageSelectorPathWinsOverNameCollision) {
     EXPECT_EQ(snapshot.selectedMembers, std::vector<std::string>{"member"});
 }
 
+TEST(IdeSnapshotInspect, PackageSelectorDoesNotUseDottedTailAlias) {
+    TempProject p;
+    p.write("mcpp.toml", "[workspace]\nmembers=[\"libs/special\"]\n");
+    p.write("libs/special/mcpp.toml", package_manifest("acme.foo"));
+    auto snapshot = mcpp::ide::inspect_workspace({.start = p.root,
+        .selectors = {.package = "foo"}});
+    EXPECT_EQ(snapshot.state, mcpp::ide::SnapshotState::Unavailable);
+    EXPECT_NE(diagnostic(snapshot, "MCPP_IDE_WORKSPACE_MEMBER_NOT_FOUND"), nullptr);
+}
+
 TEST(IdeSnapshotInspect, UnknownPackageUnavailable) {
     TempProject p;
     p.write("mcpp.toml", "[workspace]\nmembers=[\"one\"]\n");