[clang] Implement CompilerInvocation copy assignment

This patch implements the copy assignment for `CompilerInvocation`.

Eventually, the deep-copy operation will be moved into a `clone()` method (D100460), but until then, this is necessary for basic ergonomics.

Depends on D100455.

Reviewed By: Bigcheese

Differential Revision: https://reviews.llvm.org/D100473

1 files changed, 17 insertions, 0 deletions

diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp
index fd6ca5e..34319fe 100644
--- a/clang/lib/Frontend/CompilerInvocation.cpp
+++ b/clang/lib/Frontend/CompilerInvocation.cpp
@@ -125,6 +125,23 @@ CompilerInvocationRefBase::CompilerInvocationRefBase(
       PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())),
       AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {}
 
+CompilerInvocationRefBase::CompilerInvocationRefBase(
+    CompilerInvocationRefBase &&X) = default;
+
+CompilerInvocationRefBase &
+CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) {
+  LangOpts.swap(X.LangOpts);
+  TargetOpts.swap(X.TargetOpts);
+  DiagnosticOpts.swap(X.DiagnosticOpts);
+  HeaderSearchOpts.swap(X.HeaderSearchOpts);
+  PreprocessorOpts.swap(X.PreprocessorOpts);
+  AnalyzerOpts.swap(X.AnalyzerOpts);
+  return *this;
+}
+
+CompilerInvocationRefBase &
+CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default;
+
 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default;
 
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