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unroll_loops: handle for/else

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This commit is contained in:
Sebastien Bourdeauducq 2014-05-25 13:37:12 +02:00
parent 08ff5154a8
commit 956f75d168
1 changed files with 18 additions and 13 deletions
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31
examples/transform.py
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@ -75,18 +75,23 @@ def unroll_loops(stmts, limit):
pass
else:
unroll_loops(stmt.body, limit)
n = len(it)*_count_stmts(stmt.body)
if n < limit:
replacement = []
for i in it:
if not isinstance(i, int):
replacement = None
break
replacement.append(ast.copy_location(
ast.Assign(targets=[stmt.target], value=ast.Num(n=i)), stmt))
replacement += stmt.body
if replacement is not None:
replacements.append((stmt_i, replacement))
unroll_loops(stmt.orelse, limit)
l_it = len(it)
if l_it:
n = l_it*_count_stmts(stmt.body)
if n < limit:
replacement = []
for i in it:
if not isinstance(i, int):
replacement = None
break
replacement.append(ast.copy_location(
ast.Assign(targets=[stmt.target], value=ast.Num(n=i)), stmt))
replacement += stmt.body
if replacement is not None:
replacements.append((stmt_i, replacement))
else:
replacements.append((stmt_i, stmt.orelse))
if isinstance(stmt, (ast.While, ast.If)):
unroll_loops(stmt.body, limit)
unroll_loops(stmt.orelse, limit)
@ -106,5 +111,5 @@ if __name__ == "__main__":
explicit_delays(node)
unroll_loops(node, 50)
unparse.Unparser(node)