On 5/31/10 12:40 PM, Allison Randal wrote:
... or something completely new and different.
The extra mile is syntax that's actually pleasant to work with.
transform as_post PAST::Op
where pirop is 'add'
and children.count is 2
and children.returns are ('PAST::Val' or 'PAST::Var')
to POST::Op
with name = tree.name,
pos = tree.pos,
children = (tree.left.as_post, tree.right.as_post)
rewrite op PAST::Op
where pirop is 'add'
by { running this code }
rewrite op PAST::Op
where (pirop is 'add')
to PAST::Op
with name = tree.name,
# ... other different characteristics
(Note: 'is' is a single value, 'are' is an iterator.)
Allison
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