From 0b2375edfe6b32f361b3fe19c5c26bddc041fabb Mon Sep 17 00:00:00 2001
From: Reid Spencer <rspencer@reidspencer.com>
Date: Wed, 31 May 2006 16:40:28 +0000
Subject: Make the getNamedFunction and getNamedGlobal methods be const. They
 don't change the module in any way and we should enforce that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28588 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Module.h |  4 ++--
 lib/VMCore/Module.cpp | 16 ++++++++--------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/llvm/Module.h b/include/llvm/Module.h
index 18b081abc7..8e8f554abe 100644
--- a/include/llvm/Module.h
+++ b/include/llvm/Module.h
@@ -179,7 +179,7 @@ public:
   /// getNamedFunction - Return the first function in the module with the
   /// specified name, of arbitrary type.  This method returns null if a function
   /// with the specified name is not found.
-  Function *getNamedFunction(const std::string &Name);
+  Function *getNamedFunction(const std::string &Name) const;
 
 /// @}
 /// @name Global Variable Accessors 
@@ -197,7 +197,7 @@ public:
   /// getNamedGlobal - Return the first global variable in the module with the
   /// specified name, of arbitrary type.  This method returns null if a global
   /// with the specified name is not found.
-  GlobalVariable *getNamedGlobal(const std::string &Name);
+  GlobalVariable *getNamedGlobal(const std::string &Name) const;
   
 /// @}
 /// @name Type Accessors
diff --git a/lib/VMCore/Module.cpp b/lib/VMCore/Module.cpp
index da7d410423..7dcd44ca2e 100644
--- a/lib/VMCore/Module.cpp
+++ b/lib/VMCore/Module.cpp
@@ -250,16 +250,16 @@ Function *Module::getMainFunction() {
 /// specified name, of arbitrary type.  This method returns null if a function
 /// with the specified name is not found.
 ///
-Function *Module::getNamedFunction(const std::string &Name) {
+Function *Module::getNamedFunction(const std::string &Name) const {
   // Loop over all of the functions, looking for the function desired
-  Function *Found = 0;
-  for (iterator I = begin(), E = end(); I != E; ++I)
+  const Function *Found = 0;
+  for (const_iterator I = begin(), E = end(); I != E; ++I)
     if (I->getName() == Name)
       if (I->isExternal())
         Found = I;
       else
-        return I;
-  return Found; // Non-external function not found...
+        return const_cast<Function*>(&(*I));
+  return const_cast<Function*>(Found); // Non-external function not found...
 }
 
 //===----------------------------------------------------------------------===//
@@ -287,13 +287,13 @@ GlobalVariable *Module::getGlobalVariable(const std::string &Name,
 /// specified name, of arbitrary type.  This method returns null if a global
 /// with the specified name is not found.
 ///
-GlobalVariable *Module::getNamedGlobal(const std::string &Name) {
+GlobalVariable *Module::getNamedGlobal(const std::string &Name) const {
   // FIXME: This would be much faster with a symbol table that doesn't
   // discriminate based on type!
-  for (global_iterator I = global_begin(), E = global_end();
+  for (const_global_iterator I = global_begin(), E = global_end();
        I != E; ++I)
     if (I->getName() == Name) 
-      return I;
+      return const_cast<GlobalVariable*>(&(*I));
   return 0;
 }
 
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