Feature/source loc review (#672)

* Fixes/improvements based around review comments.

* SourceUnit -> SourceView

* * Removed the HumaneSourceLoc as it's POD-like ness seemed to make that unnecessary
* Made exposed member variables in SourceManager protected - so make clear where/how can be accesed
* Improved description about SourceLoc and associated structures

* Changed SourceLocType to 'Actual' and 'Nominal'.

* Improved a comment.

1 files changed, 5 insertions, 5 deletions

diff --git a/source/slang/lexer.cpp b/source/slang/lexer.cpp
index 339d98d49..918668296 100644
--- a/source/slang/lexer.cpp
+++ b/source/slang/lexer.cpp
@@ -84,22 +84,22 @@ namespace Slang
     // Lexer
 
     void Lexer::initialize(
-        SourceUnit*     inSourceUnit,
+        SourceView*     inSourceView,
         DiagnosticSink* inSink,
         NamePool*       inNamePool)
     {
-        sourceUnit  = inSourceUnit;
+        sourceView  = inSourceView;
         sink        = inSink;
         namePool    = inNamePool;
 
-        auto content = inSourceUnit->getSourceFile()->content;
-
+        auto content = inSourceView->getContent();
+        
         begin   = content.begin();
         cursor  = content.begin();
         end     = content.end();
 
         // Set the start location
-        startLoc = inSourceUnit->getRange().begin;
+        startLoc = inSourceView->getRange().begin;
 
         tokenFlags = TokenFlag::AtStartOfLine | TokenFlag::AfterWhitespace;
         lexerFlags = 0;