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## Summary This is a follow-up to #7469 that attempts to achieve similar gains, but without introducing malachite. Instead, this PR removes the `BigInt` type altogether, instead opting for a simple enum that allows us to store small integers directly and only allocate for values greater than `i64`: ```rust /// A Python integer literal. Represents both small (fits in an `i64`) and large integers. #[derive(Clone, PartialEq, Eq, Hash)] pub struct Int(Number); #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub enum Number { /// A "small" number that can be represented as an `i64`. Small(i64), /// A "large" number that cannot be represented as an `i64`. Big(Box<str>), } impl std::fmt::Display for Number { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { match self { Number::Small(value) => write!(f, "{value}"), Number::Big(value) => write!(f, "{value}"), } } } ``` We typically don't care about numbers greater than `isize` -- our only uses are comparisons against small constants (like `1`, `2`, `3`, etc.), so there's no real loss of information, except in one or two rules where we're now a little more conservative (with the worst-case being that we don't flag, e.g., an `itertools.pairwise` that uses an extremely large value for the slice start constant). For simplicity, a few diagnostics now show a dedicated message when they see integers that are out of the supported range (e.g., `outdated-version-block`). An additional benefit here is that we get to remove a few dependencies, especially `num-bigint`. ## Test Plan `cargo test`
23 lines
811 B
Python
23 lines
811 B
Python
import os
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import stat
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keyfile = "foo"
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os.chmod("/etc/passwd", 0o227) # Error
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os.chmod("/etc/passwd", 0o7) # Error
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os.chmod("/etc/passwd", 0o664) # OK
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os.chmod("/etc/passwd", 0o777) # Error
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os.chmod("/etc/passwd", 0o770) # Error
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os.chmod("/etc/passwd", 0o776) # Error
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os.chmod("/etc/passwd", 0o760) # OK
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os.chmod("~/.bashrc", 511) # Error
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os.chmod("/etc/hosts", 0o777) # Error
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os.chmod("/tmp/oh_hai", 0x1FF) # Error
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os.chmod("/etc/passwd", stat.S_IRWXU) # OK
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os.chmod(keyfile, 0o777) # Error
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os.chmod(keyfile, 0o7 | 0o70 | 0o700) # Error
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os.chmod(keyfile, stat.S_IRWXO | stat.S_IRWXG | stat.S_IRWXU) # Error
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os.chmod("~/hidden_exec", stat.S_IXGRP) # Error
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os.chmod("~/hidden_exec", stat.S_IXOTH) # OK
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os.chmod("/etc/passwd", stat.S_IWOTH) # Error
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os.chmod("/etc/passwd", 0o100000000) # Error
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