mirror of
https://github.com/rust-lang/rust-clippy
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22 lines
1 KiB
Rust
22 lines
1 KiB
Rust
use std::fs::OpenOptions;
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#[allow(unused_must_use)]
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#[warn(clippy::nonsensical_open_options)]
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fn main() {
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OpenOptions::new().read(true).truncate(true).open("foo.txt");
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//~^ ERROR: file opened with `truncate` and `read`
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//~| NOTE: `-D clippy::nonsensical-open-options` implied by `-D warnings`
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OpenOptions::new().append(true).truncate(true).open("foo.txt");
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//~^ ERROR: file opened with `append` and `truncate`
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OpenOptions::new().read(true).read(false).open("foo.txt");
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//~^ ERROR: the method `read` is called more than once
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OpenOptions::new().create(true).create(false).open("foo.txt");
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//~^ ERROR: the method `create` is called more than once
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OpenOptions::new().write(true).write(false).open("foo.txt");
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//~^ ERROR: the method `write` is called more than once
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OpenOptions::new().append(true).append(false).open("foo.txt");
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//~^ ERROR: the method `append` is called more than once
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OpenOptions::new().truncate(true).truncate(false).open("foo.txt");
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//~^ ERROR: the method `truncate` is called more than once
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}
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