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Merge unnecessary/deprecated diagnostic highlights separately (#10084) 

Previously unnecessary/deprecated diagnostic tags replaced the highlight
for the severity of a diagnostic. This could cause either the severity
or unnecessary/deprecated scopes to disappear when diagnostic ranges
overlapped though. Plus the severity highlight can be interesting in
addition to the unnecessary/deprecated highlight.

So this change separates the unnecessary and deprecated highlights from
the severity highlights, so each is merged separately and when they
overlap, the highlights are combined.
pull/10102/head
Michael Davis 2024-04-05 01:50:41 -04:00 committed by GitHub
parent d053886fe3
commit f240d896a4
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GPG Key ID: B5690EEEBB952194
1 changed files with 54 additions and 22 deletions
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76
helix-term/src/ui/editor.rs
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@ -359,8 +359,8 @@ impl EditorView {
pub fn doc_diagnostics_highlights(
doc: &Document,
theme: &Theme,
) -> [Vec<(usize, std::ops::Range<usize>)>; 5] {
use helix_core::diagnostic::{DiagnosticTag, Severity};
) -> [Vec<(usize, std::ops::Range<usize>)>; 7] {
use helix_core::diagnostic::{DiagnosticTag, Range, Severity};
let get_scope_of = |scope| {
theme
.find_scope_index_exact(scope)
@ -389,6 +389,25 @@ impl EditorView {
let mut hint_vec = Vec::new();
let mut warning_vec = Vec::new();
let mut error_vec = Vec::new();
let mut unnecessary_vec = Vec::new();
let mut deprecated_vec = Vec::new();
let push_diagnostic =
|vec: &mut Vec<(usize, std::ops::Range<usize>)>, scope, range: Range| {
// If any diagnostic overlaps ranges with the prior diagnostic,
// merge the two together. Otherwise push a new span.
match vec.last_mut() {
Some((_, existing_range)) if range.start <= existing_range.end => {
// This branch merges overlapping diagnostics, assuming that the current
// diagnostic starts on range.start or later. If this assertion fails,
// we will discard some part of `diagnostic`. This implies that
// `doc.diagnostics()` is not sorted by `diagnostic.range`.
debug_assert!(existing_range.start <= range.start);
existing_range.end = range.end.max(existing_range.end)
}
_ => vec.push((scope, range.start..range.end)),
}
};
for diagnostic in doc.diagnostics() {
// Separate diagnostics into different Vecs by severity.
@ -400,31 +419,44 @@ impl EditorView {
_ => (&mut default_vec, r#default),
};
let scope = diagnostic
.tags
.first()
.and_then(|tag| match tag {
DiagnosticTag::Unnecessary => unnecessary,
DiagnosticTag::Deprecated => deprecated,
})
.unwrap_or(scope);
// If the diagnostic has tags and a non-warning/error severity, skip rendering
// the diagnostic as info/hint/default and only render it as unnecessary/deprecated
// instead. For warning/error diagnostics, render both the severity highlight and
// the tag highlight.
if diagnostic.tags.is_empty()
|| matches!(
diagnostic.severity,
Some(Severity::Warning | Severity::Error)
)
{
push_diagnostic(vec, scope, diagnostic.range);
}
// If any diagnostic overlaps ranges with the prior diagnostic,
// merge the two together. Otherwise push a new span.
match vec.last_mut() {
Some((_, range)) if diagnostic.range.start <= range.end => {
// This branch merges overlapping diagnostics, assuming that the current
// diagnostic starts on range.start or later. If this assertion fails,
// we will discard some part of `diagnostic`. This implies that
// `doc.diagnostics()` is not sorted by `diagnostic.range`.
debug_assert!(range.start <= diagnostic.range.start);
range.end = diagnostic.range.end.max(range.end)
for tag in &diagnostic.tags {
match tag {
DiagnosticTag::Unnecessary => {
if let Some(scope) = unnecessary {
push_diagnostic(&mut unnecessary_vec, scope, diagnostic.range)
}
}
DiagnosticTag::Deprecated => {
if let Some(scope) = deprecated {
push_diagnostic(&mut deprecated_vec, scope, diagnostic.range)
}
}
}
_ => vec.push((scope, diagnostic.range.start..diagnostic.range.end)),
}
}
[default_vec, info_vec, hint_vec, warning_vec, error_vec]
[
default_vec,
unnecessary_vec,
deprecated_vec,
info_vec,
hint_vec,
warning_vec,
error_vec,
]
}
/// Get highlight spans for selections in a document view.