Changes between Version 5 and Version 6 of AST

Timestamp:

04/18/11 14:30:34 (15 years ago)

Author:

Stephen Siegel

Comment:

--

AST

@@ -1 @@
-= Abstract Syntax Tree =
+= The TASS Abstract Syntax Tree =
+
+The TASS AST is the common front-end representation of a source program used by TASS.    It is used to generate a model, the TASS intermediate representation.
 
 Requirements:
- * Language neutral: to the extent possible one common AST should be used for C, C++, Fortran(s)
- * Should be easy to generate model from AST
- * Should be easy to generate AST from parse tree
+ * language neutral: to the extent possible one common AST should be used for C, C++, Fortran(s)
+ * should be easy to generate model from AST
+ * should be easy to generate AST from a typical parse tree
+ * should be easy to generate AST from ANTLR, ROSE, or Clang (other tools?)
  * AST may go through many processing stages; at each stage it is still an AST
+ * persistent XML representation: should be able to read and write
+ * all nodes must carry precise source information: file, begin point (line and column numbers), and end point
 
 Questions:
@@ -17 +22 @@
 == Elements of a TASS AST ==
 
-See description of CIL AST: 
+For one example of how to do this, see description of CIL AST: 
  * http://www.cs.berkeley.edu/~necula/cil/api/
  * http://www.cs.berkeley.edu/~necula/cil/api/Cil.html