[analyzer][PlistMacroExpansion] Part 1.: New expand-macros flag

This is the first part of the implementation of the inclusion of macro
expansions into the plist output. It adds a new flag that adds a new
"macro_expansions" entry to each report that has PathDiagnosticPieces that were
expanded from a macro. While there's an entry for each macro expansion, both
the name of the macro and what it expands to is missing, and will be implemented
in followup patches.

Differential Revision: https://reviews.llvm.org/D52742

llvm-svn: 345724

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp b/clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
index d300119e6c1..cde2f4c2591 100644
--- a/clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
+++ b/clang/lib/StaticAnalyzer/Core/AnalyzerOptions.cpp
@@ -464,6 +464,13 @@ bool AnalyzerOptions::shouldDisplayNotesAsEvents() {
   return DisplayNotesAsEvents.getValue();
 }
 
+bool AnalyzerOptions::shouldDisplayMacroExpansions() {
+  if (!DisplayMacroExpansions.hasValue())
+    DisplayMacroExpansions =
+        getBooleanOption("expand-macros", /*Default=*/false);
+  return DisplayMacroExpansions.getValue();
+}
+
 bool AnalyzerOptions::shouldAggressivelySimplifyBinaryOperation() {
   if (!AggressiveBinaryOperationSimplification.hasValue())
     AggressiveBinaryOperationSimplification =