Improvements around hashing (#1355)

* Fields from upper to lower case in slang-ast-decl.h

* Lower camel field names in slang-ast-stmt.h

* Fix fields in slang-ast-expr.h

* slang-ast-type.h make fields lowerCamel.

* slang-ast-base.h members functions lowerCamel.

* Method names in slang-ast-type.h to lowerCamel.

* GetCanonicalType -> getCanonicalType

* Substitute -> substitute

* Equals -> equals
ToString -> toString

* ParentDecl -> parentDecl
Members -> members

* * Make hash code types explicit
* Use HashCode as return type of GetHashCode
* Added conversion from double to int64_t
* Split Stable from other hash functions

* toHash32/64 to convert a HashCode to the other styles.
GetHashCode32/64 -> getHashCode32/64
GetStableHashCode32/64 -> getStableHashCode32/64

* Other Get/Stable/HashCode32/64 fixes

* GetHashCode -> getHashCode

* Equals -> equals

* CreateCanonicalType -> createCanonicalType

* Catches of polymorphic types should be through references otherwise slicing can occur.

* Fixes for newer verison of gcc.
Fix hashing problem on gcc for Dictionary.

* Another fix for GetHashPos

* Fix signed issue around GetHashPos

1 files changed, 2 insertions, 2 deletions

diff --git a/source/slang/slang-file-system.cpp b/source/slang/slang-file-system.cpp
index 29db71459..ebe1eeb61 100644
--- a/source/slang/slang-file-system.cpp
+++ b/source/slang/slang-file-system.cpp
@@ -144,7 +144,7 @@ SLANG_NO_THROW SlangResult SLANG_MCALL OSFileSystemExt::saveFile(const char* pat
         }
 
     }
-    catch (IOException&)
+    catch (const IOException&)
     {
     	return SLANG_E_CANNOT_OPEN;
     }
@@ -332,7 +332,7 @@ SlangResult CacheFileSystem::_calcUniqueIdentity(const String& path, String& out
             }
              
             // Calculate the hash on the contents
-            const uint64_t hash = GetHashCode64((const char*)outFileContents->getBufferPointer(), outFileContents->getBufferSize());
+            const uint64_t hash = getHashCode64((const char*)outFileContents->getBufferPointer(), outFileContents->getBufferSize());
 
             String hashString = Path::getFileName(path);
             hashString = hashString.toLower();