Commit Graph

6 Commits

Author SHA1 Message Date
Jeremy Hylton eab4328f1a Fix calculation of hardest_arg.
The argument properties are ordered from easiest to hardest.  The
harder the arg, the more complicated that code that must be generated
to return it from getChildren() and/or getChildNodes().  The old
calculation routine was bogus, because it always set hardest_arg to
the hardness of the last argument.  Now use max() to always set it to
the hardness of the hardest argument.
2001-09-17 20:16:30 +00:00
Jeremy Hylton 5477f529d6 Revise implementations of getChildren() and getChildNodes().
Add support for floor division (// and //=)

The implementation of getChildren() and getChildNodes() is intended to
be faster, because it avoids calling flatten() on every return value.
But it's not clear that it is a lot faster, because constructing a
tuple with just the right values ends up being slow.  (Too many
attribute lookups probably.)

The ast.txt file is much more complicated, with funny characters at
the ends of names (*, &, !) to indicate the types of each child node.

The astgen script is also much more complex, making me wonder if it's
still useful.
2001-08-29 18:08:02 +00:00
Jeremy Hylton ab427b8cce Generate correct reprs for Mul, Add, etc. 2001-08-18 00:14:37 +00:00
Jeremy Hylton 9272b14d62 Fix typo in astgen script 2001-08-14 21:18:30 +00:00
Jeremy Hylton eef65908a1 Add getChildNodes() method to Node 2001-08-14 18:58:00 +00:00
Jeremy Hylton 821eee3321 Support for generation of ast.py from simple description of node
structure (ast.txt).  Usage is python astgen.py > ast.py.
2000-10-25 17:59:17 +00:00