Changes between Version 8 and Version 9 of C to tass-AST xml

Timestamp:

04/10/11 12:09:29 (15 years ago)

Author:

Stephen Siegel

Comment:

--

C to tass-AST xml

@@ -3 +3 @@
 == Elements of a TASS AST ==
 
+Preprocessing: first, the file is preprocessed to create a stream of tokens with original source information.
+
+All AST nodes have source information.
+
+Types of AST Node
  * identifiers
  * type expressions
@@ -31 +36 @@
       * literals (including named literals)
       * variable
-      * +,-,*,/,%,<,<=,>,>=,==,!=,!,&&,\|\|
-      * x++, x--, ++x, --x, x+=a, x*=a, ...
+      * operators: +,-,*,/,%,<,<=,>,>=,==,!=,!,&&,\|\|
+      * special kinds of assignments: x++, x--, ++x, --x, x+=a, x*=a, ...
       * bit-wise operators?
       * &,* (pointer operations)
@@ -40 +45 @@
       * function invocation f(x)
 
-How to handle pre-processor macros?   Include in AST?
+== Processing Stages ==
+
+The AST can be used to represent the program at different stages of translation.
+
+Stages
+ # All variables, types, etc., are represented simply as identifiers
+ # Symbol table information is used to annotate the AST
+ # (Static) types are created and associated to every expression
+ # Variable objects are created and inserted into AST
+ # Variables may be moved around to facilitate translation to model, ....
+
+
+Questions:
+ * How to handle pre-processor macros?   Include in AST?