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[ty] improve lazy scope place lookup (#19321)

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Co-authored-by: David Peter <sharkdp@users.noreply.github.com>
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Micha Reiser <micha@reiser.io>
This commit is contained in:
Shunsuke Shibayama 2025-07-25 16:11:11 +09:00 • committed by GitHub
parent 57373a7e4d
commit b124e182ca
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15 changed files with 493 additions and 179 deletions
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10
crates/ty_python_semantic/resources/mdtest/terminal_statements.md
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@ -806,11 +806,7 @@ def top_level_return(cond1: bool, cond2: bool):
x = 1
def g():
# TODO We could potentially eliminate `Unknown` from the union here,
# because `x` resolves to an enclosing function-like scope and there
# are no nested `nonlocal` declarations of that symbol that might
# modify it.
reveal_type(x) # revealed: Unknown | Literal[1, 2, 3]
reveal_type(x) # revealed: Literal[1, 2, 3]
if cond1:
if cond2:
x = 2
@ -822,7 +818,7 @@ def return_from_if(cond1: bool, cond2: bool):
x = 1
def g():
reveal_type(x) # revealed: Unknown | Literal[1, 2, 3]
reveal_type(x) # revealed: Literal[1, 2, 3]
if cond1:
if cond2:
x = 2
@ -834,7 +830,7 @@ def return_from_nested_if(cond1: bool, cond2: bool):
x = 1
def g():
reveal_type(x) # revealed: Unknown | Literal[1, 2, 3]
reveal_type(x) # revealed: Literal[1, 2, 3]
if cond1:
if cond2:
x = 2