mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-23 13:13:34 +00:00
Move test to new UI test system
This commit is contained in:
Philipp Hansch
parent
a3ff21f4d6
commit
bcc335fc9c
3 changed files with 237 additions and 142 deletions
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@ -1,142 +0,0 @@
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#![feature(plugin)]
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#![feature(const_fn)]
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#![plugin(clippy)]
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#![deny(clippy_pedantic)]
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#![allow(unused, missing_docs_in_private_items)]
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fn do_nothing<T>(_: T) {}
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fn diverge<T>(_: T) -> ! {
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panic!()
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}
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fn plus_one(value: usize) -> usize {
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value + 1
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}
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struct HasOption {
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field: Option<usize>,
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}
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impl HasOption {
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fn do_option_nothing(self: &HasOption, value: usize) {}
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fn do_option_plus_one(self: &HasOption, value: usize) -> usize {
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value + 1
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}
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}
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#[cfg_attr(rustfmt, rustfmt_skip)]
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fn main() {
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let x = HasOption { field: Some(10) };
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x.field.map(plus_one);
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let _ : Option<()> = x.field.map(do_nothing);
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x.field.map(do_nothing);
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil function
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//~| HELP try this
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//~| SUGGESTION if let Some(...) = x.field { do_nothing(...) }
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x.field.map(do_nothing);
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil function
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//~| HELP try this
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//~| SUGGESTION if let Some(...) = x.field { do_nothing(...) }
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x.field.map(diverge);
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil function
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//~| HELP try this
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//~| SUGGESTION if let Some(...) = x.field { diverge(...) }
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let captured = 10;
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if let Some(value) = x.field { do_nothing(value + captured) };
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let _ : Option<()> = x.field.map(|value| do_nothing(value + captured));
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x.field.map(|value| x.do_option_nothing(value + captured));
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { x.do_option_nothing(value + captured) }
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x.field.map(|value| { x.do_option_plus_one(value + captured); });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { x.do_option_plus_one(value + captured); }
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x.field.map(|value| do_nothing(value + captured));
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { do_nothing(value + captured) }
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x.field.map(|value| { do_nothing(value + captured) });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { do_nothing(value + captured) }
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x.field.map(|value| { do_nothing(value + captured); });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { do_nothing(value + captured) }
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x.field.map(|value| { { do_nothing(value + captured); } });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { do_nothing(value + captured) }
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x.field.map(|value| diverge(value + captured));
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { diverge(value + captured) }
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x.field.map(|value| { diverge(value + captured) });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { diverge(value + captured) }
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x.field.map(|value| { diverge(value + captured); });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { diverge(value + captured) }
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x.field.map(|value| { { diverge(value + captured); } });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { diverge(value + captured) }
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x.field.map(|value| plus_one(value + captured));
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x.field.map(|value| { plus_one(value + captured) });
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x.field.map(|value| { let y = plus_one(value + captured); });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { let y = plus_one(value + captured); }
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x.field.map(|value| { plus_one(value + captured); });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { plus_one(value + captured); }
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x.field.map(|value| { { plus_one(value + captured); } });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { plus_one(value + captured); }
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x.field.map(|ref value| { do_nothing(value + captured) });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(ref value) = x.field { do_nothing(value + captured) }
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x.field.map(|value| { do_nothing(value); do_nothing(value) });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { ... }
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x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
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//~^ ERROR called `map(f)` on an Option value where `f` is a nil closure
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//~| HELP try this
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//~| SUGGESTION if let Some(value) = x.field { ... }
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}
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81
tests/ui/option_map_unit_fn.rs
Normal file
81
tests/ui/option_map_unit_fn.rs
Normal file
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@ -0,0 +1,81 @@
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#![warn(option_map_unit_fn)]
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#![allow(unused)]
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fn do_nothing<T>(_: T) {}
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fn diverge<T>(_: T) -> ! {
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panic!()
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}
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fn plus_one(value: usize) -> usize {
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value + 1
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}
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struct HasOption {
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field: Option<usize>,
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}
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impl HasOption {
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fn do_option_nothing(self: &Self, value: usize) {}
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fn do_option_plus_one(self: &Self, value: usize) -> usize {
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value + 1
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}
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}
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#[cfg_attr(rustfmt, rustfmt_skip)]
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fn main() {
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let x = HasOption { field: Some(10) };
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x.field.map(plus_one);
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let _ : Option<()> = x.field.map(do_nothing);
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x.field.map(do_nothing);
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x.field.map(do_nothing);
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x.field.map(diverge);
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let captured = 10;
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if let Some(value) = x.field { do_nothing(value + captured) };
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let _ : Option<()> = x.field.map(|value| do_nothing(value + captured));
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x.field.map(|value| x.do_option_nothing(value + captured));
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x.field.map(|value| { x.do_option_plus_one(value + captured); });
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x.field.map(|value| do_nothing(value + captured));
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x.field.map(|value| { do_nothing(value + captured) });
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x.field.map(|value| { do_nothing(value + captured); });
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x.field.map(|value| { { do_nothing(value + captured); } });
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x.field.map(|value| diverge(value + captured));
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x.field.map(|value| { diverge(value + captured) });
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x.field.map(|value| { diverge(value + captured); });
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x.field.map(|value| { { diverge(value + captured); } });
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x.field.map(|value| plus_one(value + captured));
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x.field.map(|value| { plus_one(value + captured) });
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x.field.map(|value| { let y = plus_one(value + captured); });
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x.field.map(|value| { plus_one(value + captured); });
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x.field.map(|value| { { plus_one(value + captured); } });
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x.field.map(|ref value| { do_nothing(value + captured) });
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x.field.map(|value| { do_nothing(value); do_nothing(value) });
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x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
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}
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156
tests/ui/option_map_unit_fn.stderr
Normal file
156
tests/ui/option_map_unit_fn.stderr
Normal file
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@ -0,0 +1,156 @@
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error: called `map(f)` on an Option value where `f` is a unit function
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--> $DIR/option_map_unit_fn.rs:33:5
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33 | x.field.map(do_nothing);
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| ^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(...) = x.field { do_nothing(...) }`
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= note: `-D option-map-unit-fn` implied by `-D warnings`
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error: called `map(f)` on an Option value where `f` is a unit function
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--> $DIR/option_map_unit_fn.rs:35:5
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35 | x.field.map(do_nothing);
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| ^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(...) = x.field { do_nothing(...) }`
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error: called `map(f)` on an Option value where `f` is a unit function
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--> $DIR/option_map_unit_fn.rs:37:5
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37 | x.field.map(diverge);
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| ^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(...) = x.field { diverge(...) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:43:5
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43 | x.field.map(|value| x.do_option_nothing(value + captured));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { x.do_option_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:45:5
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45 | x.field.map(|value| { x.do_option_plus_one(value + captured); });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { x.do_option_plus_one(value + captured); }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:48:5
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48 | x.field.map(|value| do_nothing(value + captured));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:50:5
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50 | x.field.map(|value| { do_nothing(value + captured) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:52:5
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52 | x.field.map(|value| { do_nothing(value + captured); });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:54:5
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54 | x.field.map(|value| { { do_nothing(value + captured); } });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { do_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:57:5
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57 | x.field.map(|value| diverge(value + captured));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:59:5
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59 | x.field.map(|value| { diverge(value + captured) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:61:5
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61 | x.field.map(|value| { diverge(value + captured); });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:63:5
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63 | x.field.map(|value| { { diverge(value + captured); } });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| help: try this: `if let Some(value) = x.field { diverge(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:68:5
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68 | x.field.map(|value| { let y = plus_one(value + captured); });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(value) = x.field { let y = plus_one(value + captured); }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:70:5
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70 | x.field.map(|value| { plus_one(value + captured); });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:72:5
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72 | x.field.map(|value| { { plus_one(value + captured); } });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(value) = x.field { plus_one(value + captured); }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:75:5
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75 | x.field.map(|ref value| { do_nothing(value + captured) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(ref value) = x.field { do_nothing(value + captured) }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:78:5
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78 | x.field.map(|value| { do_nothing(value); do_nothing(value) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(value) = x.field { ... }`
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error: called `map(f)` on an Option value where `f` is a unit closure
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--> $DIR/option_map_unit_fn.rs:80:5
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80 | x.field.map(|value| if value > 0 { do_nothing(value); do_nothing(value) });
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-
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| |
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| help: try this: `if let Some(value) = x.field { ... }`
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error: aborting due to 19 previous errors
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