| 1 | n/a | # Copyright 2006 Google, Inc. All Rights Reserved. |
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| 2 | n/a | # Licensed to PSF under a Contributor Agreement. |
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| 3 | n/a | |
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| 4 | n/a | """Fixer for exec. |
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| 5 | n/a | |
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| 6 | n/a | This converts usages of the exec statement into calls to a built-in |
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| 7 | n/a | exec() function. |
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| 8 | n/a | |
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| 9 | n/a | exec code in ns1, ns2 -> exec(code, ns1, ns2) |
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| 10 | n/a | """ |
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| 11 | n/a | |
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| 12 | n/a | # Local imports |
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| 13 | n/a | from .. import fixer_base |
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| 14 | n/a | from ..fixer_util import Comma, Name, Call |
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| 15 | n/a | |
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| 16 | n/a | |
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| 17 | n/a | class FixExec(fixer_base.BaseFix): |
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| 18 | n/a | BM_compatible = True |
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| 19 | n/a | |
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| 20 | n/a | PATTERN = """ |
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| 21 | n/a | exec_stmt< 'exec' a=any 'in' b=any [',' c=any] > |
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| 22 | n/a | | |
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| 23 | n/a | exec_stmt< 'exec' (not atom<'(' [any] ')'>) a=any > |
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| 24 | n/a | """ |
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| 25 | n/a | |
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| 26 | n/a | def transform(self, node, results): |
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| 27 | n/a | assert results |
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| 28 | n/a | syms = self.syms |
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| 29 | n/a | a = results["a"] |
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| 30 | n/a | b = results.get("b") |
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| 31 | n/a | c = results.get("c") |
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| 32 | n/a | args = [a.clone()] |
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| 33 | n/a | args[0].prefix = "" |
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| 34 | n/a | if b is not None: |
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| 35 | n/a | args.extend([Comma(), b.clone()]) |
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| 36 | n/a | if c is not None: |
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| 37 | n/a | args.extend([Comma(), c.clone()]) |
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| 38 | n/a | |
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| 39 | n/a | return Call(Name("exec"), args, prefix=node.prefix) |
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