Unnamed repository; edit this file 'description' to name the repository.
-rw-r--r--crates/ide/src/inlay_hints.rs162
-rw-r--r--crates/ide/src/lib.rs4
-rw-r--r--crates/rust-analyzer/src/handlers.rs2
-rw-r--r--crates/rust-analyzer/src/to_proto.rs57
4 files changed, 179 insertions, 46 deletions
diff --git a/crates/ide/src/inlay_hints.rs b/crates/ide/src/inlay_hints.rs
index e9034daefa..4ad6aa0e04 100644
--- a/crates/ide/src/inlay_hints.rs
+++ b/crates/ide/src/inlay_hints.rs
@@ -1,3 +1,5 @@
+use std::fmt;
+
use either::Either;
use hir::{known, Callable, HasVisibility, HirDisplay, Mutability, Semantics, TypeInfo};
use ide_db::{
@@ -69,7 +71,7 @@ pub enum InlayKind {
pub struct InlayHint {
pub range: TextRange,
pub kind: InlayKind,
- pub label: String,
+ pub label: InlayHintLabel,
pub tooltip: Option<InlayTooltip>,
}
@@ -80,6 +82,78 @@ pub enum InlayTooltip {
HoverOffset(FileId, TextSize),
}
+pub struct InlayHintLabel {
+ pub parts: Vec<InlayHintLabelPart>,
+}
+
+impl InlayHintLabel {
+ pub fn as_simple_str(&self) -> Option<&str> {
+ match &*self.parts {
+ [part] => part.as_simple_str(),
+ _ => None,
+ }
+ }
+
+ pub fn prepend_str(&mut self, s: &str) {
+ match &mut *self.parts {
+ [part, ..] if part.as_simple_str().is_some() => part.text = format!("{s}{}", part.text),
+ _ => self.parts.insert(0, InlayHintLabelPart { text: s.into(), linked_location: None }),
+ }
+ }
+
+ pub fn append_str(&mut self, s: &str) {
+ match &mut *self.parts {
+ [.., part] if part.as_simple_str().is_some() => part.text.push_str(s),
+ _ => self.parts.push(InlayHintLabelPart { text: s.into(), linked_location: None }),
+ }
+ }
+}
+
+impl From<String> for InlayHintLabel {
+ fn from(s: String) -> Self {
+ Self { parts: vec![InlayHintLabelPart { text: s, linked_location: None }] }
+ }
+}
+
+impl fmt::Display for InlayHintLabel {
+ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+ write!(f, "{}", self.parts.iter().map(|part| &part.text).format(""))
+ }
+}
+
+impl fmt::Debug for InlayHintLabel {
+ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+ f.debug_list().entries(&self.parts).finish()
+ }
+}
+
+pub struct InlayHintLabelPart {
+ pub text: String,
+ pub linked_location: Option<FileRange>,
+}
+
+impl InlayHintLabelPart {
+ pub fn as_simple_str(&self) -> Option<&str> {
+ match self {
+ Self { text, linked_location: None } => Some(text),
+ _ => None,
+ }
+ }
+}
+
+impl fmt::Debug for InlayHintLabelPart {
+ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+ match self.as_simple_str() {
+ Some(string) => string.fmt(f),
+ None => f
+ .debug_struct("InlayHintLabelPart")
+ .field("text", &self.text)
+ .field("linked_location", &self.linked_location)
+ .finish(),
+ }
+ }
+}
+
// Feature: Inlay Hints
//
// rust-analyzer shows additional information inline with the source code.
@@ -281,7 +355,7 @@ fn closing_brace_hints(
acc.push(InlayHint {
range: closing_token.text_range(),
kind: InlayKind::ClosingBraceHint,
- label,
+ label: label.into(),
tooltip: name_offset.map(|it| InlayTooltip::HoverOffset(file_id, it)),
});
@@ -311,7 +385,7 @@ fn implicit_static_hints(
acc.push(InlayHint {
range: t.text_range(),
kind: InlayKind::LifetimeHint,
- label: "'static".to_owned(),
+ label: "'static".to_owned().into(),
tooltip: Some(InlayTooltip::String("Elided static lifetime".into())),
});
}
@@ -329,10 +403,10 @@ fn fn_lifetime_fn_hints(
return None;
}
- let mk_lt_hint = |t: SyntaxToken, label| InlayHint {
+ let mk_lt_hint = |t: SyntaxToken, label: String| InlayHint {
range: t.text_range(),
kind: InlayKind::LifetimeHint,
- label,
+ label: label.into(),
tooltip: Some(InlayTooltip::String("Elided lifetime".into())),
};
@@ -486,7 +560,8 @@ fn fn_lifetime_fn_hints(
"{}{}",
allocated_lifetimes.iter().format(", "),
if is_empty { "" } else { ", " }
- ),
+ )
+ .into(),
tooltip: Some(InlayTooltip::String("Elided lifetimes".into())),
});
}
@@ -535,7 +610,8 @@ fn closure_ret_hints(
range: param_list.syntax().text_range(),
kind: InlayKind::ClosureReturnTypeHint,
label: hint_iterator(sema, &famous_defs, config, &ty)
- .unwrap_or_else(|| ty.display_truncated(sema.db, config.max_length).to_string()),
+ .unwrap_or_else(|| ty.display_truncated(sema.db, config.max_length).to_string())
+ .into(),
tooltip: Some(InlayTooltip::HoverRanged(file_id, param_list.syntax().text_range())),
});
Some(())
@@ -562,7 +638,7 @@ fn reborrow_hints(
acc.push(InlayHint {
range: expr.syntax().text_range(),
kind: InlayKind::ImplicitReborrowHint,
- label: label.to_string(),
+ label: label.to_string().into(),
tooltip: Some(InlayTooltip::String("Compiler inserted reborrow".into())),
});
Some(())
@@ -620,9 +696,9 @@ fn chaining_hints(
acc.push(InlayHint {
range: expr.syntax().text_range(),
kind: InlayKind::ChainingHint,
- label: hint_iterator(sema, &famous_defs, config, &ty).unwrap_or_else(|| {
- ty.display_truncated(sema.db, config.max_length).to_string()
- }),
+ label: hint_iterator(sema, &famous_defs, config, &ty)
+ .unwrap_or_else(|| ty.display_truncated(sema.db, config.max_length).to_string())
+ .into(),
tooltip: Some(InlayTooltip::HoverRanged(file_id, expr.syntax().text_range())),
});
}
@@ -674,7 +750,7 @@ fn param_name_hints(
InlayHint {
range,
kind: InlayKind::ParameterHint,
- label: param_name,
+ label: param_name.into(),
tooltip: tooltip.map(|it| InlayTooltip::HoverOffset(it.file_id, it.range.start())),
}
});
@@ -705,7 +781,7 @@ fn binding_mode_hints(
acc.push(InlayHint {
range,
kind: InlayKind::BindingModeHint,
- label: r.to_string(),
+ label: r.to_string().into(),
tooltip: Some(InlayTooltip::String("Inferred binding mode".into())),
});
});
@@ -720,7 +796,7 @@ fn binding_mode_hints(
acc.push(InlayHint {
range,
kind: InlayKind::BindingModeHint,
- label: bm.to_string(),
+ label: bm.to_string().into(),
tooltip: Some(InlayTooltip::String("Inferred binding mode".into())),
});
}
@@ -772,7 +848,7 @@ fn bind_pat_hints(
None => pat.syntax().text_range(),
},
kind: InlayKind::TypeHint,
- label,
+ label: label.into(),
tooltip: pat
.name()
.map(|it| it.syntax().text_range())
@@ -2223,7 +2299,9 @@ fn main() {
InlayHint {
range: 147..172,
kind: ChainingHint,
- label: "B",
+ label: [
+ "B",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2236,7 +2314,9 @@ fn main() {
InlayHint {
range: 147..154,
kind: ChainingHint,
- label: "A",
+ label: [
+ "A",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2294,7 +2374,9 @@ fn main() {
InlayHint {
range: 143..190,
kind: ChainingHint,
- label: "C",
+ label: [
+ "C",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2307,7 +2389,9 @@ fn main() {
InlayHint {
range: 143..179,
kind: ChainingHint,
- label: "B",
+ label: [
+ "B",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2350,7 +2434,9 @@ fn main() {
InlayHint {
range: 246..283,
kind: ChainingHint,
- label: "B<X<i32, bool>>",
+ label: [
+ "B<X<i32, bool>>",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2363,7 +2449,9 @@ fn main() {
InlayHint {
range: 246..265,
kind: ChainingHint,
- label: "A<X<i32, bool>>",
+ label: [
+ "A<X<i32, bool>>",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2408,7 +2496,9 @@ fn main() {
InlayHint {
range: 174..241,
kind: ChainingHint,
- label: "impl Iterator<Item = ()>",
+ label: [
+ "impl Iterator<Item = ()>",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2421,7 +2511,9 @@ fn main() {
InlayHint {
range: 174..224,
kind: ChainingHint,
- label: "impl Iterator<Item = ()>",
+ label: [
+ "impl Iterator<Item = ()>",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2434,7 +2526,9 @@ fn main() {
InlayHint {
range: 174..206,
kind: ChainingHint,
- label: "impl Iterator<Item = ()>",
+ label: [
+ "impl Iterator<Item = ()>",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2447,7 +2541,9 @@ fn main() {
InlayHint {
range: 174..189,
kind: ChainingHint,
- label: "&mut MyIter",
+ label: [
+ "&mut MyIter",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2489,7 +2585,9 @@ fn main() {
InlayHint {
range: 124..130,
kind: TypeHint,
- label: "Struct",
+ label: [
+ "Struct",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2502,7 +2600,9 @@ fn main() {
InlayHint {
range: 145..185,
kind: ChainingHint,
- label: "Struct",
+ label: [
+ "Struct",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2515,7 +2615,9 @@ fn main() {
InlayHint {
range: 145..168,
kind: ChainingHint,
- label: "Struct",
+ label: [
+ "Struct",
+ ],
tooltip: Some(
HoverRanged(
FileId(
@@ -2528,7 +2630,9 @@ fn main() {
InlayHint {
range: 222..228,
kind: ParameterHint,
- label: "self",
+ label: [
+ "self",
+ ],
tooltip: Some(
HoverOffset(
FileId(
diff --git a/crates/ide/src/lib.rs b/crates/ide/src/lib.rs
index d61d69a090..0552330814 100644
--- a/crates/ide/src/lib.rs
+++ b/crates/ide/src/lib.rs
@@ -82,8 +82,8 @@ pub use crate::{
highlight_related::{HighlightRelatedConfig, HighlightedRange},
hover::{HoverAction, HoverConfig, HoverDocFormat, HoverGotoTypeData, HoverResult},
inlay_hints::{
- ClosureReturnTypeHints, InlayHint, InlayHintsConfig, InlayKind, InlayTooltip,
- LifetimeElisionHints, ReborrowHints,
+ ClosureReturnTypeHints, InlayHint, InlayHintLabel, InlayHintsConfig, InlayKind,
+ InlayTooltip, LifetimeElisionHints, ReborrowHints,
},
join_lines::JoinLinesConfig,
markup::Markup,
diff --git a/crates/rust-analyzer/src/handlers.rs b/crates/rust-analyzer/src/handlers.rs
index d89f0f5a3c..3a661ddf06 100644
--- a/crates/rust-analyzer/src/handlers.rs
+++ b/crates/rust-analyzer/src/handlers.rs
@@ -1362,7 +1362,7 @@ pub(crate) fn handle_inlay_hints(
.map(|it| {
to_proto::inlay_hint(&snap, &line_index, inlay_hints_config.render_colons, it)
})
- .collect(),
+ .collect::<Result<Vec<_>>>()?,
))
}
diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs
index 102cd60295..de151f0d92 100644
--- a/crates/rust-analyzer/src/to_proto.rs
+++ b/crates/rust-analyzer/src/to_proto.rs
@@ -9,8 +9,9 @@ use ide::{
Annotation, AnnotationKind, Assist, AssistKind, Cancellable, CompletionItem,
CompletionItemKind, CompletionRelevance, Documentation, FileId, FileRange, FileSystemEdit,
Fold, FoldKind, Highlight, HlMod, HlOperator, HlPunct, HlRange, HlTag, Indel, InlayHint,
- InlayKind, Markup, NavigationTarget, ReferenceCategory, RenameError, Runnable, Severity,
- SignatureHelp, SourceChange, StructureNodeKind, SymbolKind, TextEdit, TextRange, TextSize,
+ InlayHintLabel, InlayKind, Markup, NavigationTarget, ReferenceCategory, RenameError, Runnable,
+ Severity, SignatureHelp, SourceChange, StructureNodeKind, SymbolKind, TextEdit, TextRange,
+ TextSize,
};
use itertools::Itertools;
use serde_json::to_value;
@@ -426,9 +427,16 @@ pub(crate) fn inlay_hint(
snap: &GlobalStateSnapshot,
line_index: &LineIndex,
render_colons: bool,
- inlay_hint: InlayHint,
-) -> lsp_types::InlayHint {
- lsp_types::InlayHint {
+ mut inlay_hint: InlayHint,
+) -> Result<lsp_types::InlayHint> {
+ match inlay_hint.kind {
+ InlayKind::ParameterHint if render_colons => inlay_hint.label.append_str(":"),
+ InlayKind::TypeHint if render_colons => inlay_hint.label.prepend_str(": "),
+ InlayKind::ClosureReturnTypeHint => inlay_hint.label.prepend_str(" -> "),
+ _ => {}
+ }
+
+ Ok(lsp_types::InlayHint {
position: match inlay_hint.kind {
// before annotated thing
InlayKind::ParameterHint
@@ -459,15 +467,9 @@ pub(crate) fn inlay_hint(
| InlayKind::ImplicitReborrowHint
| InlayKind::TypeHint
| InlayKind::ClosingBraceHint => false,
- InlayKind::BindingModeHint => inlay_hint.label != "&",
+ InlayKind::BindingModeHint => inlay_hint.label.to_string() != "&",
InlayKind::ParameterHint | InlayKind::LifetimeHint => true,
}),
- label: lsp_types::InlayHintLabel::String(match inlay_hint.kind {
- InlayKind::ParameterHint if render_colons => format!("{}:", inlay_hint.label),
- InlayKind::TypeHint if render_colons => format!(": {}", inlay_hint.label),
- InlayKind::ClosureReturnTypeHint => format!(" -> {}", inlay_hint.label),
- _ => inlay_hint.label.clone(),
- }),
kind: match inlay_hint.kind {
InlayKind::ParameterHint => Some(lsp_types::InlayHintKind::PARAMETER),
InlayKind::ClosureReturnTypeHint | InlayKind::TypeHint | InlayKind::ChainingHint => {
@@ -506,9 +508,36 @@ pub(crate) fn inlay_hint(
})(),
tooltip: Some(match inlay_hint.tooltip {
Some(ide::InlayTooltip::String(s)) => lsp_types::InlayHintTooltip::String(s),
- _ => lsp_types::InlayHintTooltip::String(inlay_hint.label),
+ _ => lsp_types::InlayHintTooltip::String(inlay_hint.label.to_string()),
}),
- }
+ label: inlay_hint_label(snap, inlay_hint.label)?,
+ })
+}
+
+fn inlay_hint_label(
+ snap: &GlobalStateSnapshot,
+ label: InlayHintLabel,
+) -> Result<lsp_types::InlayHintLabel> {
+ Ok(match label.as_simple_str() {
+ Some(s) => lsp_types::InlayHintLabel::String(s.into()),
+ None => lsp_types::InlayHintLabel::LabelParts(
+ label
+ .parts
+ .into_iter()
+ .map(|part| {
+ Ok(lsp_types::InlayHintLabelPart {
+ value: part.text,
+ tooltip: None,
+ location: part
+ .linked_location
+ .map(|range| location(snap, range))
+ .transpose()?,
+ command: None,
+ })
+ })
+ .collect::<Result<Vec<_>>>()?,
+ ),
+ })
}
static TOKEN_RESULT_COUNTER: AtomicU32 = AtomicU32::new(1);