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Remove code duplication in highlight injection

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This commit is contained in:
Lukas Wirth 2021-03-29 20:11:28 +02:00
parent 5dd6b93138
commit 6b8358d4d9
2 changed files with 35 additions and 60 deletions
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63
crates/ide/src/doc_links.rs
View file

@ -98,6 +98,29 @@ pub(crate) fn remove_links(markdown: &str) -> String {
out
}
/// Retrieve a link to documentation for the given symbol.
pub(crate) fn external_docs(
db: &RootDatabase,
position: &FilePosition,
) -> Option<DocumentationLink> {
let sema = Semantics::new(db);
let file = sema.parse(position.file_id).syntax().clone();
let token = pick_best(file.token_at_offset(position.offset))?;
let token = sema.descend_into_macros(token);
let node = token.parent()?;
let definition = match_ast! {
match node {
ast::NameRef(name_ref) => NameRefClass::classify(&sema, &name_ref).map(|d| d.referenced(sema.db)),
ast::Name(name) => NameClass::classify(&sema, &name).map(|d| d.referenced_or_defined(sema.db)),
_ => None,
}
};
get_doc_link(db, definition?)
}
/// Extracts all links from a given markdown text.
pub(crate) fn extract_definitions_from_markdown(
markdown: &str,
) -> Vec<(Range<usize>, String, Option<hir::Namespace>)> {
@ -178,15 +201,15 @@ pub(crate) fn resolve_doc_path_for_def(
) -> Option<hir::ModuleDef> {
match def {
Definition::ModuleDef(def) => match def {
ModuleDef::Module(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Function(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Adt(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Variant(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Const(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Static(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::Trait(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::TypeAlias(it) => it.resolve_doc_path(db, &link, ns),
ModuleDef::BuiltinType(_) => None,
hir::ModuleDef::Module(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Function(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Adt(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Variant(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Const(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Static(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Trait(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::TypeAlias(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::BuiltinType(_) => None,
},
Definition::Macro(it) => it.resolve_doc_path(db, &link, ns),
Definition::Field(it) => it.resolve_doc_path(db, &link, ns),
@ -328,28 +351,6 @@ fn rewrite_url_link(db: &RootDatabase, def: ModuleDef, target: &str) -> Option<S
.map(|url| url.into_string())
}
/// Retrieve a link to documentation for the given symbol.
pub(crate) fn external_docs(
db: &RootDatabase,
position: &FilePosition,
) -> Option<DocumentationLink> {
let sema = Semantics::new(db);
let file = sema.parse(position.file_id).syntax().clone();
let token = pick_best(file.token_at_offset(position.offset))?;
let token = sema.descend_into_macros(token);
let node = token.parent()?;
let definition = match_ast! {
match node {
ast::NameRef(name_ref) => NameRefClass::classify(&sema, &name_ref).map(|d| d.referenced(sema.db)),
ast::Name(name) => NameClass::classify(&sema, &name).map(|d| d.referenced_or_defined(sema.db)),
_ => None,
}
};
get_doc_link(db, definition?)
}
/// Rewrites a markdown document, applying 'callback' to each link.
fn map_links<'e>(
events: impl Iterator<Item = Event<'e>>,

32
crates/ide/src/syntax_highlighting/inject.rs
View file

@ -11,7 +11,8 @@ use syntax::{
};
use crate::{
doc_links::extract_definitions_from_markdown, Analysis, HlMod, HlRange, HlTag, RootDatabase,
doc_links::{extract_definitions_from_markdown, resolve_doc_path_for_def},
Analysis, HlMod, HlRange, HlTag, RootDatabase,
};
use super::{highlights::Highlights, injector::Injector};
@ -190,7 +191,7 @@ pub(super) fn doc_comment(
extract_definitions_from_markdown(line)
.into_iter()
.filter_map(|(range, link, ns)| {
Some(range).zip(validate_intra_doc_link(sema.db, &def, &link, ns))
Some(range).zip(resolve_doc_path_for_def(sema.db, def, &link, ns))
})
.map(|(Range { start, end }, def)| {
(
@ -283,33 +284,6 @@ fn find_doc_string_in_attr(attr: &hir::Attr, it: &ast::Attr) -> Option<ast::Stri
}
}
fn validate_intra_doc_link(
db: &RootDatabase,
def: &Definition,
link: &str,
ns: Option<hir::Namespace>,
) -> Option<hir::ModuleDef> {
match def {
Definition::ModuleDef(def) => match def {
hir::ModuleDef::Module(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Function(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Adt(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Variant(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Const(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Static(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::Trait(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::TypeAlias(it) => it.resolve_doc_path(db, &link, ns),
hir::ModuleDef::BuiltinType(_) => None,
},
Definition::Macro(it) => it.resolve_doc_path(db, &link, ns),
Definition::Field(it) => it.resolve_doc_path(db, &link, ns),
Definition::SelfType(_)
| Definition::Local(_)
| Definition::GenericParam(_)
| Definition::Label(_) => None,
}
}
fn module_def_to_hl_tag(def: hir::ModuleDef) -> HlTag {
let symbol = match def {
hir::ModuleDef::Module(_) => SymbolKind::Module,