1b8accb749
- Remove unnecessary `should_loop` variable
- Report errors for trait implementations
These should give resolution errors because they are visible outside the
current scope. Without these errors, rustdoc will give ICEs:
```
thread 'rustc' panicked at 'attempted .def_id() on invalid res: Err', /home/joshua/src/rust/src/libstd/macros.rs:16:9
15: rustc_hir::def::Res<Id>::def_id
at /home/joshua/src/rust/src/librustc_hir/def.rs:382
16: rustdoc::clean::utils::register_res
at src/librustdoc/clean/utils.rs:627
17: rustdoc::clean::utils::resolve_type
at src/librustdoc/clean/utils.rs:587
```
- Add much more extensive tests
+ fn -> impl -> fn
+ fn -> impl -> fn -> macro
+ errors in function parameters
+ errors in trait bounds
+ errors in the type implementing the trait
+ unknown bounds for the type
+ unknown types in function bodies
+ errors generated by macros
- Use explicit state instead of trying to reconstruct it from random info
- Use an enum instead of a boolean
- Add example of ignored error
61 lines
2.4 KiB
Rust
61 lines
2.4 KiB
Rust
#![feature(doc_cfg)]
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#![feature(target_feature, cfg_target_feature)]
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// @has doc_cfg/struct.Portable.html
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// @!has - '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' ''
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// @has - '//*[@id="method.unix_and_arm_only_function"]' 'fn unix_and_arm_only_function()'
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// @has - '//*[@class="stab portability"]' 'This is supported on Unix and ARM only.'
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pub struct Portable;
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// @has doc_cfg/unix_only/index.html \
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// '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' \
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// 'This is supported on Unix only.'
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// @matches - '//*[@class="module-item"]//*[@class="stab portability"]' '\AUnix\Z'
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// @matches - '//*[@class="module-item"]//*[@class="stab portability"]' '\AUnix and ARM\Z'
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// @count - '//*[@class="stab portability"]' 3
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#[doc(cfg(unix))]
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pub mod unix_only {
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// @has doc_cfg/unix_only/fn.unix_only_function.html \
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// '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' \
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// 'This is supported on Unix only.'
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// @count - '//*[@class="stab portability"]' 1
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pub fn unix_only_function() {
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content::should::be::irrelevant();
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}
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// @has doc_cfg/unix_only/trait.ArmOnly.html \
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// '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' \
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// 'This is supported on Unix and ARM only.'
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// @count - '//*[@class="stab portability"]' 3
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#[doc(cfg(target_arch = "arm"))]
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pub trait ArmOnly {
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fn unix_and_arm_only_function();
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}
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impl ArmOnly for super::Portable {
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fn unix_and_arm_only_function() {}
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}
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}
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// tagging a function with `#[target_feature]` creates a doc(cfg(target_feature)) node for that
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// item as well
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// the portability header is different on the module view versus the full view
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// @has doc_cfg/index.html
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// @matches - '//*[@class="module-item"]//*[@class="stab portability"]' '\Aavx\Z'
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// @has doc_cfg/fn.uses_target_feature.html
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// @has - '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' \
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// 'This is supported with target feature avx only.'
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#[target_feature(enable = "avx")]
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pub unsafe fn uses_target_feature() {
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content::should::be::irrelevant();
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}
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// @has doc_cfg/fn.uses_cfg_target_feature.html
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// @has - '//*[@id="main"]/*[@class="stability"]/*[@class="stab portability"]' \
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// 'This is supported with target feature avx only.'
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#[doc(cfg(target_feature = "avx"))]
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pub fn uses_cfg_target_feature() {
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uses_target_feature();
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}
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