mirror of https://github.com/rust-lang/rust
88 lines
2.4 KiB
Rust
88 lines
2.4 KiB
Rust
// Test cases where a changing struct appears in the signature of fns
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// and methods.
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//@ incremental
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//@ compile-flags: -Z query-dep-graph
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#![feature(rustc_attrs)]
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#![allow(dead_code)]
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#![allow(unused_variables)]
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fn main() { }
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#[rustc_if_this_changed]
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struct WillChange {
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x: u32,
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y: u32
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}
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struct WontChange {
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x: u32,
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y: u32
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}
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// these are valid dependencies
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mod signatures {
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use WillChange;
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#[rustc_then_this_would_need(type_of)] //~ ERROR no path
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#[rustc_then_this_would_need(associated_item)] //~ ERROR no path
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#[rustc_then_this_would_need(trait_def)] //~ ERROR no path
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trait Bar {
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR OK
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fn do_something(x: WillChange);
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}
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR OK
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#[rustc_then_this_would_need(typeck)] //~ ERROR OK
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fn some_fn(x: WillChange) { }
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR OK
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#[rustc_then_this_would_need(typeck)] //~ ERROR OK
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fn new_foo(x: u32, y: u32) -> WillChange {
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WillChange { x: x, y: y }
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}
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#[rustc_then_this_would_need(type_of)] //~ ERROR OK
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impl WillChange {
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR OK
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#[rustc_then_this_would_need(typeck)] //~ ERROR OK
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fn new(x: u32, y: u32) -> WillChange { loop { } }
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}
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#[rustc_then_this_would_need(type_of)] //~ ERROR OK
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impl WillChange {
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR OK
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#[rustc_then_this_would_need(typeck)] //~ ERROR OK
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fn method(&self, x: u32) { }
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}
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struct WillChanges {
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#[rustc_then_this_would_need(type_of)] //~ ERROR OK
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x: WillChange,
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#[rustc_then_this_would_need(type_of)] //~ ERROR OK
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y: WillChange
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}
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// The fields change, not the type itself.
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#[rustc_then_this_would_need(type_of)] //~ ERROR no path
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fn indirect(x: WillChanges) { }
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}
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mod invalid_signatures {
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use WontChange;
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#[rustc_then_this_would_need(type_of)] //~ ERROR no path
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trait A {
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR no path
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fn do_something_else_twice(x: WontChange);
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}
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR no path
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fn b(x: WontChange) { }
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#[rustc_then_this_would_need(fn_sig)] //~ ERROR no path from `WillChange`
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#[rustc_then_this_would_need(typeck)] //~ ERROR no path from `WillChange`
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fn c(x: u32) { }
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}
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