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aa8402d1b7
Adds concrete `Pattern` subclasses in `AstNodeImpl.qll` for every
`MatchPattern` AST kind, with `getChild` overrides that expose
sub-patterns and bound Names. Specifically:
- MatchCapturePattern (`case x:`) -> getVariable()
- MatchAsPattern (`case … as v:`) -> getPattern(), getAlias()
- MatchStarPattern (`case [*rest]:`) -> getTarget()
- MatchSequencePattern (`case [a, b]:`) -> getPattern(i)
- MatchClassPattern (`case Cls(p, q, k=v)`) -> getClass(), positional, keyword
- MatchMappingPattern (`case {k: v}:`) -> getMapping(i)
- MatchKeyValuePattern, MatchKeywordPattern, MatchDoubleStarPattern
- MatchOrPattern, MatchLiteralPattern, MatchValuePattern
Without these, every Name bound by a match pattern lacked a CFG node.
Removes the corresponding MISSING: annotations from match_pattern.py
(all 11 cases).
Verified: all 24 ControlFlow/evaluation-order tests still pass.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
25 lines
671 B
Python
25 lines
671 B
Python
# Match-statement pattern bindings — wired in the new CFG.
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def f(subject): # $ cfgdefines=f cfgdefines=subject
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match subject:
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case x: # $ cfgdefines=x
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pass
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case [a, b]: # $ cfgdefines=a cfgdefines=b
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pass
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case {"k": v}: # $ cfgdefines=v
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pass
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case Point(p, q): # $ cfgdefines=p cfgdefines=q
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pass
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case [_, *rest]: # $ cfgdefines=rest
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pass
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case (1 | 2) as n: # $ cfgdefines=n
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pass
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class Point: # $ cfgdefines=Point
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__match_args__ = ("x", "y") # $ cfgdefines=__match_args__
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x: int # $ cfgdefines=x
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y: int # $ cfgdefines=y
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