rust/tests/ui/proc-macro/doc-comment-preserved.rs

// check-pass
// compile-flags: -Z span-debug
// aux-build:test-macros.rs

#![no_std] // Don't load unnecessary hygiene information from std
extern crate std;

#[macro_use]
extern crate test_macros;

print_bang! {

/**
*******
* DOC *
* DOC *
* DOC *
*******
*/
pub struct S;

}

fn main() {}
Add some comments for magic numbers + Add tests 2020-08-04 21:26:23 +00:00			`// check-pass`
Remove normalization of `Span` debug output in proc-macro tests Fixes #74800 The definition of `is_x86_feature_detected!` (and similar macros) depends on the platform - it is produced by a `cfg_if!` invocation on x86, and a plain `#[cfg]` on other platforms. Since it is part of the prelude, we will end up importing different hygiene information depending on the platform. This previously required us to avoid printing raw `SyntaxContext` ids in any tests that uses the standard library, since the captured output will be platform-dependent. Previously, we replaced all `SyntaxContext` ids with "#CTXT", and the raw `Span` lo/hi bytes with "LO..HI". This commit adds `#![no_std]` and `extern crate std` to all proc-macro tests that print spans. This suppresses the prelude import, while still using lang items from `std` (which gives us a buildable binary). With this apporach, we will only load hygiene information for things which we explicitly import. This lets us re-add `-Z unpretty=expanded,hygiene`, since its output can now be made stable across all platforms. Additionally, we use `-Z span-debug` in more places, which lets us avoid the "LO..HI" normalization hack. 2020-08-09 17:36:31 +00:00			`// compile-flags: -Z span-debug`
Add some comments for magic numbers + Add tests 2020-08-04 21:26:23 +00:00			`// aux-build:test-macros.rs`

Remove normalization of `Span` debug output in proc-macro tests Fixes #74800 The definition of `is_x86_feature_detected!` (and similar macros) depends on the platform - it is produced by a `cfg_if!` invocation on x86, and a plain `#[cfg]` on other platforms. Since it is part of the prelude, we will end up importing different hygiene information depending on the platform. This previously required us to avoid printing raw `SyntaxContext` ids in any tests that uses the standard library, since the captured output will be platform-dependent. Previously, we replaced all `SyntaxContext` ids with "#CTXT", and the raw `Span` lo/hi bytes with "LO..HI". This commit adds `#![no_std]` and `extern crate std` to all proc-macro tests that print spans. This suppresses the prelude import, while still using lang items from `std` (which gives us a buildable binary). With this apporach, we will only load hygiene information for things which we explicitly import. This lets us re-add `-Z unpretty=expanded,hygiene`, since its output can now be made stable across all platforms. Additionally, we use `-Z span-debug` in more places, which lets us avoid the "LO..HI" normalization hack. 2020-08-09 17:36:31 +00:00			`#![no_std] // Don't load unnecessary hygiene information from std`
			`extern crate std;`
Add some comments for magic numbers + Add tests 2020-08-04 21:26:23 +00:00
			`#[macro_use]`
			`extern crate test_macros;`

			`print_bang! {`

			`/**`
			`*******`
			`* DOC *`
			`* DOC *`
			`* DOC *`
			`*******`
			`*/`
			`pub struct S;`

			`}`

			`fn main() {}`