Don't process [] and () in intra-doc links

These caused several false positives when documenting rustc, which means
there will likely be many more false positives in the rest of the
ecosystem.
This commit is contained in:
Joshua Nelson 2020-12-24 18:55:05 -05:00
parent 8842c1ccf3
commit 6ac52f0d9d
4 changed files with 109 additions and 32 deletions

View File

@ -1020,7 +1020,7 @@ fn resolve_link(
(link.trim(), None)
};
if path_str.contains(|ch: char| !(ch.is_alphanumeric() || ":_<>, !*()[]&;".contains(ch))) {
if path_str.contains(|ch: char| !(ch.is_alphanumeric() || ":_<>, !*&;".contains(ch))) {
return None;
}
@ -2085,10 +2085,11 @@ fn resolve_primitive(path_str: &str, ns: Namespace) -> Option<Res> {
"char" => Char,
"bool" | "true" | "false" => Bool,
"str" => Str,
"slice" | "&[]" | "[T]" => Slice,
"array" | "[]" | "[T;N]" => Array,
"tuple" | "(,)" => Tuple,
"unit" | "()" => Unit,
// See #80181 for why these don't have symbols associated.
"slice" => Slice,
"array" => Array,
"tuple" => Tuple,
"unit" => Unit,
"pointer" | "*" | "*const" | "*mut" => RawPointer,
"reference" | "&" | "&mut" => Reference,
"fn" => Fn,

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@ -0,0 +1,34 @@
#![deny(broken_intra_doc_links)]
// These are links that could reasonably expected to work, but don't.
// `[]` isn't supported because it had too many false positives.
//! [X]([T]::not_here)
//! [Y](&[]::not_here)
//! [X]([]::not_here)
//! [Y]([T;N]::not_here)
// These don't work because markdown syntax doesn't allow it.
//! [[T]::rotate_left] //~ ERROR unresolved link to `T`
//! [&[]::not_here]
//![Z]([T; N]::map) //~ ERROR unresolved link to `Z`
//! [`[T; N]::map`]
//! [[]::map]
//! [Z][] //~ ERROR unresolved link to `Z`
//!
//! [Z]: [T; N]::map //~ ERROR unresolved link to `Z`
// `()` isn't supported because it had too many false positives.
//! [()::not_here]
//! [X]((,)::not_here)
//! [(,)::not_here]
// FIXME: Associated items on some primitives aren't working, because the impls
// are part of the compiler instead of being part of the source code.
//! [unit::eq] //~ ERROR unresolved
//! [tuple::eq] //~ ERROR unresolved
//! [fn::eq] //~ ERROR unresolved
//! [never::eq] //~ ERROR unresolved
// FIXME(#78800): This breaks because it's a blanket impl
// (I think? Might break for other reasons too.)
//! [reference::deref] //~ ERROR unresolved

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@ -0,0 +1,69 @@
error: unresolved link to `T`
--> $DIR/non-path-primitives.rs:11:7
|
LL | //! [[T]::rotate_left]
| ^ no item named `T` in scope
|
note: the lint level is defined here
--> $DIR/non-path-primitives.rs:1:9
|
LL | #![deny(broken_intra_doc_links)]
| ^^^^^^^^^^^^^^^^^^^^^^
= help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
error: unresolved link to `Z`
--> $DIR/non-path-primitives.rs:13:5
|
LL | //![Z]([T; N]::map)
| ^ no item named `Z` in scope
|
= help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
error: unresolved link to `Z`
--> $DIR/non-path-primitives.rs:16:6
|
LL | //! [Z][]
| ^ no item named `Z` in scope
|
= help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
error: unresolved link to `Z`
--> $DIR/non-path-primitives.rs:18:6
|
LL | //! [Z]: [T; N]::map
| ^ no item named `Z` in scope
|
= help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
error: unresolved link to `unit::eq`
--> $DIR/non-path-primitives.rs:27:6
|
LL | //! [unit::eq]
| ^^^^^^^^ the builtin type `unit` has no associated item named `eq`
error: unresolved link to `tuple::eq`
--> $DIR/non-path-primitives.rs:28:6
|
LL | //! [tuple::eq]
| ^^^^^^^^^ the builtin type `tuple` has no associated item named `eq`
error: unresolved link to `fn::eq`
--> $DIR/non-path-primitives.rs:29:6
|
LL | //! [fn::eq]
| ^^^^^^ the builtin type `fn` has no associated item named `eq`
error: unresolved link to `never::eq`
--> $DIR/non-path-primitives.rs:30:6
|
LL | //! [never::eq]
| ^^^^^^^^^ the builtin type `never` has no associated item named `eq`
error: unresolved link to `reference::deref`
--> $DIR/non-path-primitives.rs:34:6
|
LL | //! [reference::deref]
| ^^^^^^^^^^^^^^^^ the builtin type `reference` has no associated item named `deref`
error: aborting due to 9 previous errors

View File

@ -3,28 +3,10 @@
#![deny(broken_intra_doc_links)]
// @has foo/index.html '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.rotate_left"]' 'slice::rotate_left'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.rotate_left"]' 'X'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.rotate_left"]' 'Y'
//! [slice::rotate_left]
//! [X]([T]::rotate_left)
//! [Y](&[]::rotate_left)
// These don't work because markdown syntax doesn't allow it.
// [[T]::rotate_left]
//! [&[]::rotate_left]
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.array.html#method.map"]' 'array::map'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.array.html#method.map"]' 'X'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.array.html#method.map"]' 'Y'
//! [array::map]
//! [X]([]::map)
//! [Y]([T;N]::map)
// These don't work because markdown syntax doesn't allow it.
// [Z]([T; N]::map)
//! [`[T; N]::map`]
//! [[]::map]
// [Z][]
//
// [Z]: [T; N]::map
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html#method.is_null"]' 'pointer::is_null'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.pointer.html#method.is_null"]' '*const::is_null'
@ -35,20 +17,11 @@
//! [*mut::is_null]
//! [*::is_null]
// FIXME: Associated items on some primitives aren't working, because the impls
// are part of the compiler instead of being part of the source code.
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.unit.html"]' 'unit'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.unit.html"]' '()'
//! [unit]
//! [()]
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html"]' 'tuple'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html"]' 'X'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.tuple.html"]' '(,)'
//! [tuple]
//! [X]((,))
//! [(,)]
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.reference.html"]' 'reference'
// @has - '//a[@href="https://doc.rust-lang.org/nightly/std/primitive.reference.html"]' '&'