c2f7c39987
Minor cleanup and consistent formatting of the Markdown-based tests. - Removed lots of unnecessary `a`, `b`, `c`, … variables. - Moved test assertions (`# revealed:` comments) closer to the tested object. - Always separate `# revealed` and `# error` comments from the code by two spaces, according to the discussion [here](https://github.com/astral-sh/ruff/pull/13746/files#r1799385758). This trades readability for consistency in some cases. - Fixed some headings
2.6 KiB
2.6 KiB
Expressions
OR
def foo() -> str:
pass
reveal_type(True or False) # revealed: Literal[True]
reveal_type('x' or 'y' or 'z') # revealed: Literal["x"]
reveal_type('' or 'y' or 'z') # revealed: Literal["y"]
reveal_type(False or 'z') # revealed: Literal["z"]
reveal_type(False or True) # revealed: Literal[True]
reveal_type(False or False) # revealed: Literal[False]
reveal_type(foo() or False) # revealed: str | Literal[False]
reveal_type(foo() or True) # revealed: str | Literal[True]
AND
def foo() -> str:
pass
reveal_type(True and False) # revealed: Literal[False]
reveal_type(False and True) # revealed: Literal[False]
reveal_type(foo() and False) # revealed: str | Literal[False]
reveal_type(foo() and True) # revealed: str | Literal[True]
reveal_type('x' and 'y' and 'z') # revealed: Literal["z"]
reveal_type('x' and 'y' and '') # revealed: Literal[""]
reveal_type('' and 'y') # revealed: Literal[""]
Simple function calls to bool
def returns_bool() -> bool:
return True
if returns_bool():
x = True
else:
x = False
reveal_type(x) # revealed: bool
Complex
def foo() -> str:
pass
reveal_type("x" and "y" or "z") # revealed: Literal["y"]
reveal_type("x" or "y" and "z") # revealed: Literal["x"]
reveal_type("" and "y" or "z") # revealed: Literal["z"]
reveal_type("" or "y" and "z") # revealed: Literal["z"]
reveal_type("x" and "y" or "") # revealed: Literal["y"]
reveal_type("x" or "y" and "") # revealed: Literal["x"]
bool() function
Evaluates to builtin
redefined_builtin_bool = bool
def my_bool(x)-> bool: pass
from a import redefined_builtin_bool, my_bool
reveal_type(redefined_builtin_bool(0)) # revealed: Literal[False]
reveal_type(my_bool(0)) # revealed: bool
Truthy values
reveal_type(bool(1)) # revealed: Literal[True]
reveal_type(bool((0,))) # revealed: Literal[True]
reveal_type(bool("NON EMPTY")) # revealed: Literal[True]
reveal_type(bool(True)) # revealed: Literal[True]
def foo(): pass
reveal_type(bool(foo)) # revealed: Literal[True]
Falsy values
reveal_type(bool(0)) # revealed: Literal[False]
reveal_type(bool(())) # revealed: Literal[False]
reveal_type(bool(None)) # revealed: Literal[False]
reveal_type(bool("")) # revealed: Literal[False]
reveal_type(bool(False)) # revealed: Literal[False]
reveal_type(bool()) # revealed: Literal[False]
Ambiguous values
reveal_type(bool([])) # revealed: bool
reveal_type(bool({})) # revealed: bool
reveal_type(bool(set())) # revealed: bool