commit dadee541e4b672ee463640baaa3ee244207988a5
author Jacques Pienaar <jpienaar@google.com> Sat Sep 08 18:37:27 2018 -0700
committer jpienaar <jpienaar@google.com> Fri Mar 29 13:11:35 2019 -0700
tree a217c4fef8b8b48be4b5d5ccb7c9068f0697e33b
parent 832b17a6b6b7722d97effdb10d37cb1551563811

Change SourgeMgr to const reference in Parser/Lexer.

SourceMgr is not be mutated during parsing/lexing.

PiperOrigin-RevId: 212145759

lib/Parser/Parser.cpp

diff --git a/lib/Parser/Parser.cpp b/lib/Parser/Parser.cpp
index bc6585c..cde5341 100644
--- a/lib/Parser/Parser.cpp
+++ b/lib/Parser/Parser.cpp
@@ -57,7 +57,7 @@
 /// methods to access this.
 class ParserState {
 public:
-  ParserState(llvm::SourceMgr &sourceMgr, Module *module)
+  ParserState(const llvm::SourceMgr &sourceMgr, Module *module)
       : context(module->getContext()), module(module), lex(sourceMgr, context),
         curToken(lex.lexToken()), operationSet(OperationSet::get(context)) {}
 
@@ -113,7 +113,7 @@
   MLIRContext *getContext() const { return state.context; }
   Module *getModule() { return state.module; }
   OperationSet &getOperationSet() const { return state.operationSet; }
-  llvm::SourceMgr &getSourceMgr() { return state.lex.getSourceMgr(); }
+  const llvm::SourceMgr &getSourceMgr() { return state.lex.getSourceMgr(); }
 
   /// Return the current token the parser is inspecting.
   const Token &getToken() const { return state.curToken; }
@@ -3005,7 +3005,7 @@
 
 /// This parses the file specified by the indicated SourceMgr and returns an
 /// MLIR module if it was valid.  If not, it emits diagnostics and returns null.
-Module *mlir::parseSourceFile(llvm::SourceMgr &sourceMgr,
+Module *mlir::parseSourceFile(const llvm::SourceMgr &sourceMgr,
                               MLIRContext *context) {
 
   // This is the result module we are parsing into.