dev: process overlapping cases in line folding only mode

crates/tinymist-query/Cargo.toml

@@ -58,7 +58,7 @@ insta.workspace = true
 serde.workspace = true
 serde_json.workspace = true
 typst-assets = { workspace = true, features = ["fonts"] }
-reflexo-typst.workspace = true
+reflexo-typst = { workspace = true, features = ["no-content-hint"] }
 sha2 = { version = "0.10" }
 hex = { version = "0.4" }
 

crates/tinymist-query/src/fixtures/folding_range/heading-in-multiple-content.typ

@@ -0,0 +1,6 @@
+#let slides(..args) = args
+#slides()[
+  = Heading
+][
+
+]

crates/tinymist-query/src/fixtures/folding_range/multiple-content-2.typ

@@ -0,0 +1,6 @@
+#let slides(..args) = args
+#slides[
+
+][
+
+]

crates/tinymist-query/src/fixtures/folding_range/multiple-content.typ

@@ -0,0 +1,6 @@
+#let slides(..args) = args
+#slides()[
+
+][
+
+]

crates/tinymist-query/src/fixtures/folding_range/snaps/test@array_folding.typ.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/tinymist-query/src/folding_range.rs
-expression: "JsonRepr::new_pure(result.unwrap())"
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
 input_file: crates/tinymist-query/src/fixtures/folding_range/array_folding.typ
 ---
-[
+{
+ "false": [
   {
    "collapsedText": "",
    "endCharacter": 1,
@@ -11,4 +12,12 @@ input_file: crates/tinymist-query/src/fixtures/folding_range/array_folding.typ
    "startCharacter": 1,
    "startLine": 0
   }
-]
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 4,
+   "startLine": 0
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@base.typ.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/tinymist-query/src/folding_range.rs
-expression: "JsonRepr::new_pure(result.unwrap())"
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
 input_file: crates/tinymist-query/src/fixtures/folding_range/base.typ
 ---
-[
+{
+ "false": [
   {
    "collapsedText": "Heading 2",
    "endCharacter": 12,
@@ -32,4 +33,22 @@ input_file: crates/tinymist-query/src/fixtures/folding_range/base.typ
    "startCharacter": 2,
    "startLine": 4
   }
-]
+ ],
+ "true": [
+  {
+   "collapsedText": "Heading 1",
+   "endLine": 3,
+   "startLine": 0
+  },
+  {
+   "collapsedText": "",
+   "endLine": 9,
+   "startLine": 6
+  },
+  {
+   "collapsedText": "Heading 3",
+   "endLine": 9,
+   "startLine": 4
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@heading-in-multiple-content.typ.snap

@@ -0,0 +1,49 @@
+---
+source: crates/tinymist-query/src/folding_range.rs
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
+input_file: crates/tinymist-query/src/fixtures/folding_range/heading-in-multiple-content.typ
+---
+{
+ "false": [
+  {
+   "collapsedText": "Heading",
+   "endCharacter": 11,
+   "endLine": 3,
+   "startCharacter": 4,
+   "startLine": 2
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 3,
+   "startCharacter": 9,
+   "startLine": 1
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 1,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 7,
+   "startLine": 1
+  }
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 1
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@headings-in-blocks.typ.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/tinymist-query/src/folding_range.rs
-expression: "JsonRepr::new_pure(result.unwrap())"
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
 input_file: crates/tinymist-query/src/fixtures/folding_range/headings-in-blocks.typ
 ---
-[
+{
+ "false": [
   {
    "collapsedText": "",
    "endCharacter": 11,
@@ -46,4 +47,27 @@ input_file: crates/tinymist-query/src/fixtures/folding_range/headings-in-blocks.
    "startCharacter": 9,
    "startLine": 0
   }
-]
+ ],
+ "true": [
+  {
+   "collapsedText": "Heading 2",
+   "endLine": 8,
+   "startLine": 5
+  },
+  {
+   "collapsedText": "",
+   "endLine": 7,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "Heading 1",
+   "endLine": 8,
+   "startLine": 1
+  },
+  {
+   "collapsedText": "",
+   "endLine": 8,
+   "startLine": 0
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@multiple-content-2.typ.snap

@@ -0,0 +1,42 @@
+---
+source: crates/tinymist-query/src/folding_range.rs
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
+input_file: crates/tinymist-query/src/fixtures/folding_range/multiple-content-2.typ
+---
+{
+ "false": [
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 3,
+   "startCharacter": 7,
+   "startLine": 1
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 1,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 7,
+   "startLine": 1
+  }
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 1
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@multiple-content.typ.snap

@@ -0,0 +1,42 @@
+---
+source: crates/tinymist-query/src/folding_range.rs
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
+input_file: crates/tinymist-query/src/fixtures/folding_range/multiple-content.typ
+---
+{
+ "false": [
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 3,
+   "startCharacter": 9,
+   "startLine": 1
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 1,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endCharacter": 1,
+   "endLine": 5,
+   "startCharacter": 7,
+   "startLine": 1
+  }
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 3
+  },
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 1
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@nested-blocks.typ.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/tinymist-query/src/folding_range.rs
-expression: "JsonRepr::new_pure(result.unwrap())"
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
 input_file: crates/tinymist-query/src/fixtures/folding_range/nested-blocks.typ
 ---
-[
+{
+ "false": [
   {
    "collapsedText": "",
    "endCharacter": 5,
@@ -67,4 +68,47 @@ input_file: crates/tinymist-query/src/fixtures/folding_range/nested-blocks.typ
    "startCharacter": 9,
    "startLine": 0
   }
-]
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 4,
+   "startLine": 2
+  },
+  {
+   "collapsedText": "",
+   "endLine": 5,
+   "startLine": 1
+  },
+  {
+   "collapsedText": "",
+   "endLine": 8,
+   "startLine": 6
+  },
+  {
+   "collapsedText": "",
+   "endLine": 11,
+   "startLine": 10
+  },
+  {
+   "collapsedText": "",
+   "endLine": 14,
+   "startLine": 12
+  },
+  {
+   "collapsedText": "",
+   "endLine": 15,
+   "startLine": 9
+  },
+  {
+   "collapsedText": "",
+   "endLine": 17,
+   "startLine": 16
+  },
+  {
+   "collapsedText": "",
+   "endLine": 18,
+   "startLine": 0
+  }
+ ]
+}

crates/tinymist-query/src/fixtures/folding_range/snaps/test@paren_folding.typ.snap

@@ -1,9 +1,10 @@
 ---
 source: crates/tinymist-query/src/folding_range.rs
-expression: "JsonRepr::new_pure(result.unwrap())"
+expression: "JsonRepr::new_pure(json!({ \"false\": result_false, \"true\": result_true, }))"
 input_file: crates/tinymist-query/src/fixtures/folding_range/paren_folding.typ
 ---
-[
+{
+ "false": [
   {
    "collapsedText": "",
    "endCharacter": 1,
@@ -11,4 +12,12 @@ input_file: crates/tinymist-query/src/fixtures/folding_range/paren_folding.typ
    "startCharacter": 1,
    "startLine": 0
   }
-]
+ ],
+ "true": [
+  {
+   "collapsedText": "",
+   "endLine": 2,
+   "startLine": 0
+  }
+ ]
+}

crates/tinymist-query/src/folding_range.rs

@@ -1,3 +1,5 @@
+use hashbrown::HashSet;
+
 use crate::{
     prelude::*,
     syntax::{get_lexical_hierarchy, LexicalHierarchy, LexicalKind, LexicalScopeKind},
@@ -42,12 +44,45 @@ impl SyntaxRequest for FoldingRangeRequest {
             &symbols,
             source,
             position_encoding,
-            line_folding_only,
             loc,
             loc,
             true,
             &mut results,
         );
+
+        // Generally process of folding ranges with line_folding_only
+        if line_folding_only {
+            let mut max_line = 0;
+            for r in &mut results {
+                r.start_character = None;
+                r.end_character = None;
+                max_line = max_line.max(r.end_line);
+            }
+            let mut line_coverage = vec![false; max_line as usize + 1];
+            let mut pair_coverage = HashSet::new();
+            results.reverse();
+            results.retain_mut(|r| {
+                if pair_coverage.contains(&(r.start_line, r.end_line)) {
+                    return false;
+                }
+
+                if line_coverage[r.start_line as usize] {
+                    r.start_line += 1;
+                }
+                if line_coverage[r.end_line as usize] {
+                    r.end_line = r.end_line.saturating_sub(1);
+                }
+                if r.start_line >= r.end_line {
+                    return false;
+                }
+
+                line_coverage[r.start_line as usize] = true;
+                pair_coverage.insert((r.start_line, r.end_line));
+                true
+            });
+            results.reverse();
+        }
+
         if false {
             trace!("FoldingRangeRequest(line_folding_only={line_folding_only}) symbols: {symbols:#?} results: {results:#?}");
         }
@@ -58,13 +93,10 @@ impl SyntaxRequest for FoldingRangeRequest {
 
 type LoC = (u32, Option<u32>);
 
-#[allow(clippy::too_many_arguments)]
-#[allow(deprecated)]
 fn calc_folding_range(
     symbols: &[LexicalHierarchy],
     source: &Source,
     position_encoding: PositionEncoding,
-    line_folding_only: bool,
     parent_last_loc: LoC,
     last_loc: LoC,
     is_last_range: bool,
@@ -79,7 +111,7 @@ fn calc_folding_range(
             start_line: rng.start.line,
             start_character: Some(rng.start.character),
             end_line: rng.end.line,
-            end_character: line_folding_only.then_some(rng.end.character),
+            end_character: Some(rng.end.character),
             kind: None,
             collapsed_text: Some(e.info.name.clone()),
         };
@@ -113,7 +145,6 @@ fn calc_folding_range(
                 ch,
                 source,
                 position_encoding,
-                line_folding_only,
                 parent_last_loc,
                 last_loc,
                 !is_not_final_last_range,
@@ -133,15 +164,23 @@ mod tests {
     #[test]
     fn test() {
         snapshot_testing("folding_range", &|world, path| {
+            let mut r = |line_folding_only| {
                 let request = FoldingRangeRequest {
                     path: path.clone(),
-                line_folding_only: true,
+                    line_folding_only,
                 };
 
                 let source = world.source_by_path(&path).unwrap();
 
-            let result = request.request(&source, PositionEncoding::Utf16);
+                request.request(&source, PositionEncoding::Utf16)
-            assert_snapshot!(JsonRepr::new_pure(result.unwrap()));
+            };
+
+            let result_false = r(false);
+            let result_true = r(true);
+            assert_snapshot!(JsonRepr::new_pure(json!({
+                "false": result_false,
+                "true": result_true,
+            })));
         });
     }
 }

crates/tinymist-query/src/tests.rs

@@ -23,6 +23,7 @@ use typst::{diag::PackageError, foundations::Bytes};
 pub use insta::assert_snapshot;
 pub use reflexo_typst::TypstSystemWorld;
 pub use serde::Serialize;
+pub use serde_json::json;
 
 use crate::{
     analysis::{Analysis, AnalysisResources},

crates/tinymist/Cargo.toml

@@ -100,7 +100,10 @@ embed-fonts = ["typst-assets/fonts"]
 
 # Disable the default content hint.
 # This requires modifying typst.
-no-content-hint = ["reflexo-typst/no-content-hint"]
+no-content-hint = [
+    "reflexo-typst/no-content-hint",
+    "reflexo-vec2svg/no-content-hint",
+]
 
 preview = [
     "typst-preview",