61 lines
2.4 KiB
Rust
61 lines
2.4 KiB
Rust
#![feature(plugin)]
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#![plugin(clippy)]
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#![deny(drop_ref, forget_ref)]
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#![allow(toplevel_ref_arg, similar_names)]
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use std::mem::{drop, forget};
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struct SomeStruct;
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fn main() {
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drop(&SomeStruct); //~ERROR call to `std::mem::drop` with a reference argument
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forget(&SomeStruct); //~ERROR call to `std::mem::forget` with a reference argument
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let mut owned1 = SomeStruct;
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drop(&owned1); //~ERROR call to `std::mem::drop` with a reference argument
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drop(&&owned1); //~ERROR call to `std::mem::drop` with a reference argument
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drop(&mut owned1); //~ERROR call to `std::mem::drop` with a reference argument
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drop(owned1); //OK
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let mut owned2 = SomeStruct;
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forget(&owned2); //~ERROR call to `std::mem::forget` with a reference argument
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forget(&&owned2); //~ERROR call to `std::mem::forget` with a reference argument
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forget(&mut owned2); //~ERROR call to `std::mem::forget` with a reference argument
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forget(owned2); //OK
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let reference1 = &SomeStruct;
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drop(reference1); //~ERROR call to `std::mem::drop` with a reference argument
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forget(&*reference1); //~ERROR call to `std::mem::forget` with a reference argument
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let reference2 = &mut SomeStruct;
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drop(reference2); //~ERROR call to `std::mem::drop` with a reference argument
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let reference3 = &mut SomeStruct;
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forget(reference3); //~ERROR call to `std::mem::forget` with a reference argument
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let ref reference4 = SomeStruct;
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drop(reference4); //~ERROR call to `std::mem::drop` with a reference argument
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forget(reference4); //~ERROR call to `std::mem::forget` with a reference argument
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}
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#[allow(dead_code)]
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fn test_generic_fn_drop<T>(val: T) {
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drop(&val); //~ERROR call to `std::mem::drop` with a reference argument
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drop(val); //OK
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}
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#[allow(dead_code)]
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fn test_generic_fn_forget<T>(val: T) {
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forget(&val); //~ERROR call to `std::mem::forget` with a reference argument
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forget(val); //OK
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}
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#[allow(dead_code)]
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fn test_similarly_named_function() {
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fn drop<T>(_val: T) {}
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drop(&SomeStruct); //OK; call to unrelated function which happens to have the same name
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std::mem::drop(&SomeStruct); //~ERROR call to `std::mem::drop` with a reference argument
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fn forget<T>(_val: T) {}
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forget(&SomeStruct); //OK; call to unrelated function which happens to have the same name
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std::mem::forget(&SomeStruct); //~ERROR call to `std::mem::forget` with a reference argument
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}
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