38958aa8bd
Debuginfo line information for macro invocations are collapsed by default - line information are replaced by the line of the outermost expansion site. Using `-Zdebug-macros` disables this behaviour. When the `collapse_debuginfo` feature is enabled, the default behaviour is reversed so that debuginfo is not collapsed by default. In addition, the `#[collapse_debuginfo]` attribute is available and can be applied to macro definitions which will then have their line information collapsed. Signed-off-by: David Wood <david.wood@huawei.com>
110 lines
3.1 KiB
Rust
110 lines
3.1 KiB
Rust
#![feature(collapse_debuginfo)]
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#![feature(stmt_expr_attributes)]
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#![feature(type_alias_impl_trait)]
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#![no_std]
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// Test that the `#[collapse_debuginfo]` attribute can only be used on macro definitions.
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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extern crate std;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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use std::collections::HashMap;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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static FOO: u32 = 3;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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const BAR: u32 = 3;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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fn foo() {
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let _ = #[collapse_debuginfo] || { };
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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let _ = 3;
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let _ = #[collapse_debuginfo] 3;
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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match (3, 4) {
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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_ => (),
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}
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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mod bar {
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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type Map = HashMap<u32, u32>;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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enum Foo {
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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Variant,
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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struct Bar {
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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field: u32,
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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union Qux {
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a: u32,
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b: u16
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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trait Foobar {
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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type Bar;
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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type AFoobar = impl Foobar;
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impl Foobar for Bar {
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type Bar = u32;
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}
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fn constraining() -> AFoobar {
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Bar { field: 3 }
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}
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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impl Bar {
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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const FOO: u32 = 3;
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#[collapse_debuginfo]
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//~^ ERROR `collapse_debuginfo` attribute should be applied to macro definitions
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fn bar(&self) {}
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}
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#[collapse_debuginfo]
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macro_rules! finally {
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($e:expr) => { $e }
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}
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fn main() {}
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