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-rw-r--r--crates/hir_def/src/attr.rs109
-rw-r--r--crates/ide/src/goto_definition.rs1
-rw-r--r--crates/ide/src/syntax_highlighting/inject.rs55
-rw-r--r--crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html10
-rw-r--r--crates/ide/src/syntax_highlighting/tests.rs10
5 files changed, 149 insertions, 36 deletions
diff --git a/crates/hir_def/src/attr.rs b/crates/hir_def/src/attr.rs
index 52a2bce9b..7791402c9 100644
--- a/crates/hir_def/src/attr.rs
+++ b/crates/hir_def/src/attr.rs
@@ -1,6 +1,10 @@
1//! A higher level attributes based on TokenTree, with also some shortcuts. 1//! A higher level attributes based on TokenTree, with also some shortcuts.
2 2
3use std::{ops, sync::Arc}; 3use std::{
4 cmp::Ordering,
5 ops::{self, Range},
6 sync::Arc,
7};
4 8
5use base_db::CrateId; 9use base_db::CrateId;
6use cfg::{CfgExpr, CfgOptions}; 10use cfg::{CfgExpr, CfgOptions};
@@ -12,7 +16,7 @@ use mbe::ast_to_token_tree;
12use smallvec::{smallvec, SmallVec}; 16use smallvec::{smallvec, SmallVec};
13use syntax::{ 17use syntax::{
14 ast::{self, AstNode, AttrsOwner}, 18 ast::{self, AstNode, AttrsOwner},
15 match_ast, AstToken, SmolStr, SyntaxNode, 19 match_ast, AstToken, SmolStr, SyntaxNode, TextRange, TextSize,
16}; 20};
17use tt::Subtree; 21use tt::Subtree;
18 22
@@ -451,6 +455,54 @@ impl AttrsWithOwner {
451 .collect(), 455 .collect(),
452 } 456 }
453 } 457 }
458
459 pub fn docs_with_rangemap(
460 &self,
461 db: &dyn DefDatabase,
462 ) -> Option<(Documentation, DocsRangeMap)> {
463 // FIXME: code duplication in `docs` above
464 let docs = self.by_key("doc").attrs().flat_map(|attr| match attr.input.as_ref()? {
465 AttrInput::Literal(s) => Some((s, attr.index)),
466 AttrInput::TokenTree(_) => None,
467 });
468 let indent = docs
469 .clone()
470 .flat_map(|(s, _)| s.lines())
471 .filter(|line| !line.chars().all(|c| c.is_whitespace()))
472 .map(|line| line.chars().take_while(|c| c.is_whitespace()).count())
473 .min()
474 .unwrap_or(0);
475 let mut buf = String::new();
476 let mut mapping = Vec::new();
477 for (doc, idx) in docs {
478 // str::lines doesn't yield anything for the empty string
479 if !doc.is_empty() {
480 for line in doc.split('\n') {
481 let line = line.trim_end();
482 let (offset, line) = match line.char_indices().nth(indent) {
483 Some((offset, _)) => (offset, &line[offset..]),
484 None => (0, line),
485 };
486 let buf_offset = buf.len();
487 buf.push_str(line);
488 mapping.push((
489 Range { start: buf_offset, end: buf.len() },
490 idx,
491 Range { start: offset, end: line.len() },
492 ));
493 buf.push('\n');
494 }
495 } else {
496 buf.push('\n');
497 }
498 }
499 buf.pop();
500 if buf.is_empty() {
501 None
502 } else {
503 Some((Documentation(buf), DocsRangeMap { mapping, source: self.source_map(db).attrs }))
504 }
505 }
454} 506}
455 507
456fn inner_attributes( 508fn inner_attributes(
@@ -507,6 +559,59 @@ impl AttrSourceMap {
507 } 559 }
508} 560}
509 561
562/// A struct to map text ranges from [`Documentation`] back to TextRanges in the syntax tree.
563pub struct DocsRangeMap {
564 source: Vec<InFile<Either<ast::Attr, ast::Comment>>>,
565 // (docstring-line-range, attr_index, attr-string-range)
566 // a mapping from the text range of a line of the [`Documentation`] to the attribute index and
567 // the original (untrimmed) syntax doc line
568 mapping: Vec<(Range<usize>, u32, Range<usize>)>,
569}
570
571impl DocsRangeMap {
572 pub fn map(&self, range: Range<usize>) -> Option<InFile<TextRange>> {
573 let found = self
574 .mapping
575 .binary_search_by(|(probe, ..)| {
576 if probe.contains(&range.start) {
577 Ordering::Equal
578 } else {
579 probe.start.cmp(&range.end)
580 }
581 })
582 .ok()?;
583 let (line_docs_range, idx, original_line_src_range) = self.mapping[found].clone();
584 if range.end > line_docs_range.end {
585 return None;
586 }
587
588 let relative_range = Range {
589 start: range.start - line_docs_range.start,
590 end: range.end - line_docs_range.start,
591 };
592 let range_len = TextSize::from((range.end - range.start) as u32);
593
594 let &InFile { file_id, value: ref source } = &self.source[idx as usize];
595 match source {
596 Either::Left(_) => None, // FIXME, figure out a nice way to handle doc attributes here
597 // as well as for whats done in syntax highlight doc injection
598 Either::Right(comment) => {
599 let text_range = comment.syntax().text_range();
600 let range = TextRange::at(
601 text_range.start()
602 + TextSize::from(
603 (comment.prefix().len()
604 + original_line_src_range.start
605 + relative_range.start) as u32,
606 ),
607 text_range.len().min(range_len),
608 );
609 Some(InFile { file_id, value: range })
610 }
611 }
612 }
613}
614
510#[derive(Debug, Clone, PartialEq, Eq)] 615#[derive(Debug, Clone, PartialEq, Eq)]
511pub struct Attr { 616pub struct Attr {
512 index: u32, 617 index: u32,
diff --git a/crates/ide/src/goto_definition.rs b/crates/ide/src/goto_definition.rs
index 4e4d1b200..1951c599f 100644
--- a/crates/ide/src/goto_definition.rs
+++ b/crates/ide/src/goto_definition.rs
@@ -32,6 +32,7 @@ pub(crate) fn goto_definition(
32 let parent = token.parent()?; 32 let parent = token.parent()?;
33 if let Some(comment) = ast::Comment::cast(token) { 33 if let Some(comment) = ast::Comment::cast(token) {
34 let docs = doc_owner_to_def(&sema, &parent)?.docs(db)?; 34 let docs = doc_owner_to_def(&sema, &parent)?.docs(db)?;
35
35 let (_, link, ns) = extract_positioned_link_from_comment(position.offset, &comment, docs)?; 36 let (_, link, ns) = extract_positioned_link_from_comment(position.offset, &comment, docs)?;
36 let def = doc_owner_to_def(&sema, &parent)?; 37 let def = doc_owner_to_def(&sema, &parent)?;
37 let nav = resolve_doc_path_for_def(db, def, &link, ns)?.try_to_nav(db)?; 38 let nav = resolve_doc_path_for_def(db, def, &link, ns)?.try_to_nav(db)?;
diff --git a/crates/ide/src/syntax_highlighting/inject.rs b/crates/ide/src/syntax_highlighting/inject.rs
index b62d43256..504783f31 100644
--- a/crates/ide/src/syntax_highlighting/inject.rs
+++ b/crates/ide/src/syntax_highlighting/inject.rs
@@ -1,6 +1,6 @@
1//! "Recursive" Syntax highlighting for code in doctests and fixtures. 1//! "Recursive" Syntax highlighting for code in doctests and fixtures.
2 2
3use std::{mem, ops::Range}; 3use std::mem;
4 4
5use either::Either; 5use either::Either;
6use hir::{HasAttrs, InFile, Semantics}; 6use hir::{HasAttrs, InFile, Semantics};
@@ -139,8 +139,28 @@ pub(super) fn doc_comment(
139 // Replace the original, line-spanning comment ranges by new, only comment-prefix 139 // Replace the original, line-spanning comment ranges by new, only comment-prefix
140 // spanning comment ranges. 140 // spanning comment ranges.
141 let mut new_comments = Vec::new(); 141 let mut new_comments = Vec::new();
142 let mut intra_doc_links = Vec::new();
143 let mut string; 142 let mut string;
143
144 if let Some((docs, doc_mapping)) = attributes.docs_with_rangemap(sema.db) {
145 extract_definitions_from_markdown(docs.as_str())
146 .into_iter()
147 .filter_map(|(range, link, ns)| {
148 let def = resolve_doc_path_for_def(sema.db, def, &link, ns)?;
149 let InFile { file_id, value: range } = doc_mapping.map(range)?;
150 (file_id == node.file_id).then(|| (range, def))
151 })
152 .for_each(|(range, def)| {
153 hl.add(HlRange {
154 range,
155 highlight: module_def_to_hl_tag(def)
156 | HlMod::Documentation
157 | HlMod::Injected
158 | HlMod::IntraDocLink,
159 binding_hash: None,
160 })
161 });
162 }
163
144 for attr in attributes.by_key("doc").attrs() { 164 for attr in attributes.by_key("doc").attrs() {
145 let InFile { file_id, value: src } = attrs_source_map.source_of(&attr); 165 let InFile { file_id, value: src } = attrs_source_map.source_of(&attr);
146 if file_id != node.file_id { 166 if file_id != node.file_id {
@@ -186,25 +206,7 @@ pub(super) fn doc_comment(
186 is_doctest = is_codeblock && is_rust; 206 is_doctest = is_codeblock && is_rust;
187 continue; 207 continue;
188 } 208 }
189 None if !is_doctest => { 209 None if !is_doctest => continue,
190 intra_doc_links.extend(
191 extract_definitions_from_markdown(line)
192 .into_iter()
193 .filter_map(|(range, link, ns)| {
194 Some(range).zip(resolve_doc_path_for_def(sema.db, def, &link, ns))
195 })
196 .map(|(Range { start, end }, def)| {
197 (
198 def,
199 TextRange::at(
200 prev_range_start + TextSize::from(start as u32),
201 TextSize::from((end - start) as u32),
202 ),
203 )
204 }),
205 );
206 continue;
207 }
208 None => (), 210 None => (),
209 } 211 }
210 212
@@ -223,17 +225,6 @@ pub(super) fn doc_comment(
223 } 225 }
224 } 226 }
225 227
226 for (def, range) in intra_doc_links {
227 hl.add(HlRange {
228 range,
229 highlight: module_def_to_hl_tag(def)
230 | HlMod::Documentation
231 | HlMod::Injected
232 | HlMod::IntraDocLink,
233 binding_hash: None,
234 });
235 }
236
237 if new_comments.is_empty() { 228 if new_comments.is_empty() {
238 return; // no need to run an analysis on an empty file 229 return; // no need to run an analysis on an empty file
239 } 230 }
diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
index 045162eb8..b6d1cac4e 100644
--- a/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
+++ b/crates/ide/src/syntax_highlighting/test_data/highlight_doctest.html
@@ -100,10 +100,18 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd
100<span class="brace">}</span> 100<span class="brace">}</span>
101 101
102<span class="comment documentation">/// </span><span class="struct documentation intra_doc_link injected">[`Foo`](Foo)</span><span class="comment documentation"> is a struct</span> 102<span class="comment documentation">/// </span><span class="struct documentation intra_doc_link injected">[`Foo`](Foo)</span><span class="comment documentation"> is a struct</span>
103<span class="comment documentation">/// </span><span class="function documentation intra_doc_link injected">[`all_the_links`](all_the_links)</span><span class="comment documentation"> is this function</span> 103<span class="comment documentation">/// This function is &gt; </span><span class="function documentation intra_doc_link injected">[`all_the_links`](all_the_links)</span><span class="comment documentation"> &lt;</span>
104<span class="comment documentation">/// [`noop`](noop) is a macro below</span> 104<span class="comment documentation">/// [`noop`](noop) is a macro below</span>
105<span class="comment documentation">/// </span><span class="struct documentation intra_doc_link injected">[`Item`]</span><span class="comment documentation"> is a struct in the module </span><span class="module documentation intra_doc_link injected">[`module`]</span>
106<span class="comment documentation">///</span>
107<span class="comment documentation">/// [`Item`]: module::Item</span>
108<span class="comment documentation">/// [mix_and_match]: ThisShouldntResolve</span>
105<span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration">all_the_links</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span> 109<span class="keyword">pub</span> <span class="keyword">fn</span> <span class="function declaration">all_the_links</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span><span class="brace">}</span>
106 110
111<span class="keyword">pub</span> <span class="keyword">mod</span> <span class="module declaration">module</span> <span class="brace">{</span>
112 <span class="keyword">pub</span> <span class="keyword">struct</span> <span class="struct declaration">Item</span><span class="semicolon">;</span>
113<span class="brace">}</span>
114
107<span class="comment documentation">/// ```</span> 115<span class="comment documentation">/// ```</span>
108<span class="comment documentation">/// </span><span class="macro injected">noop!</span><span class="parenthesis injected">(</span><span class="numeric_literal injected">1</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span> 116<span class="comment documentation">/// </span><span class="macro injected">noop!</span><span class="parenthesis injected">(</span><span class="numeric_literal injected">1</span><span class="parenthesis injected">)</span><span class="semicolon injected">;</span>
109<span class="comment documentation">/// ```</span> 117<span class="comment documentation">/// ```</span>
diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs
index 369ae0972..1b02857ec 100644
--- a/crates/ide/src/syntax_highlighting/tests.rs
+++ b/crates/ide/src/syntax_highlighting/tests.rs
@@ -544,10 +544,18 @@ impl Foo {
544} 544}
545 545
546/// [`Foo`](Foo) is a struct 546/// [`Foo`](Foo) is a struct
547/// [`all_the_links`](all_the_links) is this function 547/// This function is > [`all_the_links`](all_the_links) <
548/// [`noop`](noop) is a macro below 548/// [`noop`](noop) is a macro below
549/// [`Item`] is a struct in the module [`module`]
550///
551/// [`Item`]: module::Item
552/// [mix_and_match]: ThisShouldntResolve
549pub fn all_the_links() {} 553pub fn all_the_links() {}
550 554
555pub mod module {
556 pub struct Item;
557}
558
551/// ``` 559/// ```
552/// noop!(1); 560/// noop!(1);
553/// ``` 561/// ```