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Reduce trigger region of closure tooltip

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This commit is contained in:
Laurenz 2023-10-29 19:36:20 +01:00
parent 9c29dbf84f
commit 265b37d12d
1 changed files with 12 additions and 7 deletions
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19
crates/typst-ide/src/tooltip.rs
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@ -5,7 +5,7 @@ use if_chain::if_chain;
use typst::doc::Frame;
use typst::eval::{CapturesVisitor, CastInfo, Repr, Tracer, Value};
use typst::geom::{round_2, Length, Numeric};
use typst::syntax::ast::{self, AstNode};
use typst::syntax::ast;
use typst::syntax::{LinkedNode, Source, SyntaxKind};
use typst::util::{pretty_comma_list, separated_list};
use typst::World;
@ -103,16 +103,21 @@ fn expr_tooltip(world: &dyn World, leaf: &LinkedNode) -> Option<Tooltip> {
/// Tooltip for a hovered closure.
fn closure_tooltip(leaf: &LinkedNode) -> Option<Tooltip> {
// Find the closure to analyze.
let mut ancestor = leaf;
while !ancestor.is::<ast::Closure>() {
ancestor = ancestor.parent()?;
// Only show this tooltip when hovering over the equals sign or arrow of
// the closure. Showing it across the whole subtree is too noisy.
if !matches!(leaf.kind(), SyntaxKind::Eq | SyntaxKind::Arrow) {
return None;
}
// Find the closure to analyze.
let parent = leaf.parent()?;
if parent.kind() != SyntaxKind::Closure {
return None;
}
let closure = ancestor.cast::<ast::Closure>()?.to_untyped();
// Analyze the closure's captures.
let mut visitor = CapturesVisitor::new(None);
visitor.visit(closure);
visitor.visit(parent);
let captures = visitor.finish();
let mut names: Vec<_> =