[AST][Introspection] Add a check to detect if introspection is suppor…

…ted. This could probably be made into a compile time constant, but that would involve generating a second inc file. Reviewed By: steveire Differential Revision: https://reviews.llvm.org/D100530
llvm · Apr 15, 2021 · f019e5f · f019e5f
1 parent 542e780
commit f019e5f
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Showing 4 changed files with 47 additions and 81 deletions.
diff --git a/clang/include/clang/Tooling/NodeIntrospection.h b/clang/include/clang/Tooling/NodeIntrospection.h
@@ -85,6 +85,7 @@ struct NodeLocationAccessors {
 };
 
 namespace NodeIntrospection {
+bool hasIntrospectionSupport();
 NodeLocationAccessors GetLocations(clang::Stmt const *Object);
 NodeLocationAccessors GetLocations(clang::Decl const *Object);
 NodeLocationAccessors GetLocations(clang::CXXCtorInitializer const *Object);

diff --git a/clang/lib/Tooling/CMakeLists.txt b/clang/lib/Tooling/CMakeLists.txt
@@ -35,6 +35,8 @@ if (NOT Python3_EXECUTABLE
 namespace clang {
 namespace tooling {
 
+bool NodeIntrospection::hasIntrospectionSupport() { return false; }
+
 NodeLocationAccessors NodeIntrospection::GetLocations(clang::Stmt const *) {
   return {};
 }

diff --git a/clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py b/clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py
@@ -28,6 +28,8 @@ def GeneratePrologue(self):
 
 using LocationAndString = SourceLocationMap::value_type;
 using RangeAndString = SourceRangeMap::value_type;
+
+bool NodeIntrospection::hasIntrospectionSupport() { return true; }
 """
 
     def GenerateBaseGetLocationsDeclaration(self, CladeName):
@@ -174,6 +176,8 @@ def main():
 namespace clang {
 namespace tooling {
 
+bool NodeIntrospection::hasIntrospectionSupport() { return false; }
+
 NodeLocationAccessors NodeIntrospection::GetLocations(clang::Stmt const *) {
   return {};
 }