[clang-tools-extra] [clang-tidy] Add ClangQueryChecks config option (PR #123734)

[Piotr Zegar via cfe-commits]

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@@ -0,0 +1,53 @@
+// DEFINE: %{custom-call-yaml} = custom-call: 'm callExpr().bind(\"Custom message\")'
+//
+// DEFINE: %{custom-let-call-yaml} = custom-let-call: \"         \
+// DEFINE:     let expr varDecl(                                 \
+// DEFINE:       hasType(asString(\\\"long long\\\")),           \
+// DEFINE:       hasTypeLoc(typeLoc().bind(\\\"Let message\\\")) \
+// DEFINE:     ) \n                                              \
+// DEFINE:     match expr\"
+//
+// DEFINE: %{full-config} = "{ClangQueryChecks: {%{custom-call-yaml},%{custom-let-call-yaml}}}"
+
+//Check single match expression
+// RUN: clang-tidy %s -checks='-*, custom-*'                  \
+// RUN:   -config="{ClangQueryChecks: {%{custom-call-yaml}}}" \
+// RUN:   -- | FileCheck %s -check-prefix=CHECK-CUSTOM-CALL
+
+void a() {
+}
+
+// CHECK-CUSTOM-CALL: warning: Custom message [custom-call]
+// CHECK-CUSTOM-CALL-NEXT: a();{{$}}
+void b() {
+    a();
+}
+
+//Check let with match expression
+// RUN: clang-tidy %s -checks='-*, custom-*'                      \
+// RUN:   -config="{ClangQueryChecks: {%{custom-let-call-yaml}}}" \
+// RUN:   -- | FileCheck %s -check-prefix=CHECK-CUSTOM-LET
+void c() {
+    // CHECK-CUSTOM-LET: warning: Let message [custom-let-call]
+    // CHECK-CUSTOM-LET-NEXT: long long test_long_long = 0;{{$}}
+    long long test_long_long_nolint = 0; //NOLINT(custom-let-call)
+    long long test_long_long = 0;
+}
+
+//Check multiple checks in one config
+// RUN: clang-tidy %s -checks='-*, custom-*' \
+// RUN:   -config=%{full-config}             \
+// RUN:   -- | FileCheck %s -check-prefixes=CHECK-CUSTOM-CALL,CHECK-CUSTOM-LET
+
+//Check multiple checks in one config but only one enabled
+// RUN: clang-tidy %s -checks='-*, custom-call' \
+// RUN:   -config=%{full-config}                \
+// RUN:   -- | FileCheck %s -check-prefixes=CHECK-CUSTOM-CALL --implicit-check-not warning:
+
+//Check config dump
+// RUN: clang-tidy -dump-config -checks='-*, custom-*' \
+// RUN:   -config=%{full-config}                       \
+// RUN:   -- | FileCheck %s -check-prefix=CHECK-CONFIG
+// CHECK-CONFIG: ClangQueryChecks:
+// CHECK-CONFIG-DAG: custom-let-call:
+// CHECK-CONFIG-DAG: custom-call:  |{{$[[:space:]]}} m callExpr().bind("Custom message")
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PiotrZSL wrote:

missing test for --verify-config and --list-checks

https://github.com/llvm/llvm-project/pull/123734