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Rename Red Knot (#17820)
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# Boolean literals
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```py
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reveal_type(True) # revealed: Literal[True]
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reveal_type(False) # revealed: Literal[False]
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```
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10
crates/ty_python_semantic/resources/mdtest/literal/bytes.md
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crates/ty_python_semantic/resources/mdtest/literal/bytes.md
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# Bytes literals
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## Simple
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```py
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reveal_type(b"t" b"y") # revealed: Literal[b"ty"]
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reveal_type(b"hello") # revealed: Literal[b"hello"]
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reveal_type(b"world" + b"!") # revealed: Literal[b"world!"]
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reveal_type(b"\xff\x00") # revealed: Literal[b"\xff\x00"]
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```
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# Dictionaries
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## Empty dictionary
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```py
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reveal_type({}) # revealed: dict[Unknown, Unknown]
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```
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# Lists
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## Empty list
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```py
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reveal_type([]) # revealed: list
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```
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# Sets
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## Basic set
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```py
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reveal_type({1, 2}) # revealed: set
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```
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# Tuples
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## Empty tuple
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```py
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reveal_type(()) # revealed: tuple[()]
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```
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## Heterogeneous tuple
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```py
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reveal_type((1, "a")) # revealed: tuple[Literal[1], Literal["a"]]
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reveal_type((1, (2, 3))) # revealed: tuple[Literal[1], tuple[Literal[2], Literal[3]]]
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reveal_type(((1, "a"), 2)) # revealed: tuple[tuple[Literal[1], Literal["a"]], Literal[2]]
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```
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# Complex literals
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## Complex numbers
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```py
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reveal_type(2j) # revealed: complex
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```
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# Ellipsis literals
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## Python 3.9
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```toml
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[environment]
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python-version = "3.9"
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```
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```py
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reveal_type(...) # revealed: ellipsis
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```
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## Python 3.10
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```toml
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[environment]
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python-version = "3.10"
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```
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```py
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reveal_type(...) # revealed: EllipsisType
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```
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# f-strings
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## Expression
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```py
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from typing_extensions import Literal
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def _(x: Literal[0], y: str, z: Literal[False]):
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reveal_type(f"hello") # revealed: Literal["hello"]
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reveal_type(f"h {x}") # revealed: Literal["h 0"]
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reveal_type("one " f"single " f"literal") # revealed: Literal["one single literal"]
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reveal_type("first " f"second({x})" f" third") # revealed: Literal["first second(0) third"]
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reveal_type(f"-{y}-") # revealed: str
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reveal_type(f"-{y}-" f"--" "--") # revealed: str
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reveal_type(f"{z} == {False} is {True}") # revealed: Literal["False == False is True"]
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```
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## Conversion Flags
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```py
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string = "hello"
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# TODO: should be `Literal["'hello'"]`
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reveal_type(f"{string!r}") # revealed: str
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```
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## Format Specifiers
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```py
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# TODO: should be `Literal["01"]`
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reveal_type(f"{1:02}") # revealed: str
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```
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# Float literals
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## Basic
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```py
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reveal_type(1.0) # revealed: float
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```
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# Integer literals
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## Literals
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We can infer an integer literal type:
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```py
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reveal_type(1) # revealed: Literal[1]
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```
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## Variable
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```py
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x = 1
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reveal_type(x) # revealed: Literal[1]
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```
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## Overflow
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We only track integer literals within the range of an i64:
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```py
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reveal_type(9223372036854775808) # revealed: int
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```
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## Big int
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We don't support big integer literals; we just infer `int` type instead:
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```py
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x = 10_000_000_000_000_000_000
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reveal_type(x) # revealed: int
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```
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## Negated
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```py
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x = -1
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y = -1234567890987654321
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z = --987
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reveal_type(x) # revealed: Literal[-1]
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reveal_type(y) # revealed: Literal[-1234567890987654321]
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reveal_type(z) # revealed: Literal[987]
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```
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## Floats
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```py
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reveal_type(1.0) # revealed: float
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```
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## Complex
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```py
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reveal_type(2j) # revealed: complex
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```
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crates/ty_python_semantic/resources/mdtest/literal/string.md
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crates/ty_python_semantic/resources/mdtest/literal/string.md
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# String literals
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## Simple
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```py
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reveal_type("Hello") # revealed: Literal["Hello"]
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reveal_type("world") # revealed: Literal["world"]
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reveal_type("Guten " + "Tag") # revealed: Literal["Guten Tag"]
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reveal_type("bon " + "jour") # revealed: Literal["bon jour"]
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```
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## Nested Quotes
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```py
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reveal_type('I say "hello" to you') # revealed: Literal["I say \"hello\" to you"]
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# revealed: Literal["You say \"hey\" back"]
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reveal_type("You say \"hey\" back") # fmt: skip
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reveal_type('No "closure here') # revealed: Literal["No \"closure here"]
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```
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