Feature/attributed binding (#621)

* Typo fix, and added dxc to command line documentation.

* Fix small typos.
Added support for Scope to lexer.
Fix bug in Token ctor.

* Add support for attribute names that are scoped.

* Added GLSLBindingAttribute. Make binding work through core.met.slang.

* Allow [[gl::binding(binding, set)]]
[[vk::binding(binding,set)]]

1 files changed, 10 insertions, 1 deletions

diff --git a/source/slang/lexer.cpp b/source/slang/lexer.cpp
index 87ad6bd5c..5e6d15384 100644
--- a/source/slang/lexer.cpp
+++ b/source/slang/lexer.cpp
@@ -1192,7 +1192,16 @@ namespace Slang
 
         case '~': advance(lexer); return TokenType::OpBitNot;
 
-        case ':': advance(lexer); return TokenType::Colon;
+        case ':': 
+        {
+            advance(lexer);
+            if (peek(lexer) == ':')
+            {
+                advance(lexer);
+                return TokenType::Scope;
+            }
+            return TokenType::Colon;
+        }
         case ';': advance(lexer); return TokenType::Semicolon;
         case ',': advance(lexer); return TokenType::Comma;