From a4e9681c79095d6c10a851cfefe64cf1a3570ec5 Mon Sep 17 00:00:00 2001 From: Aleksey Kladov Date: Thu, 16 Jul 2020 18:13:43 +0200 Subject: Better module structure --- crates/ra_ide/src/display/structure.rs | 441 --------------------------------- 1 file changed, 441 deletions(-) delete mode 100644 crates/ra_ide/src/display/structure.rs (limited to 'crates/ra_ide/src/display') diff --git a/crates/ra_ide/src/display/structure.rs b/crates/ra_ide/src/display/structure.rs deleted file mode 100644 index 1f6a3febf..000000000 --- a/crates/ra_ide/src/display/structure.rs +++ /dev/null @@ -1,441 +0,0 @@ -use ra_syntax::{ - ast::{self, AttrsOwner, NameOwner, TypeAscriptionOwner, TypeParamsOwner}, - match_ast, AstNode, SourceFile, SyntaxKind, SyntaxNode, TextRange, WalkEvent, -}; - -#[derive(Debug, Clone)] -pub struct StructureNode { - pub parent: Option, - pub label: String, - pub navigation_range: TextRange, - pub node_range: TextRange, - pub kind: SyntaxKind, - pub detail: Option, - pub deprecated: bool, -} - -// Feature: File Structure -// -// Provides a tree of the symbols defined in the file. Can be used to -// -// * fuzzy search symbol in a file (super useful) -// * draw breadcrumbs to describe the context around the cursor -// * draw outline of the file -// -// |=== -// | Editor | Shortcut -// -// | VS Code | kbd:[Ctrl+Shift+O] -// |=== -pub fn file_structure(file: &SourceFile) -> Vec { - let mut res = Vec::new(); - let mut stack = Vec::new(); - - for event in file.syntax().preorder() { - match event { - WalkEvent::Enter(node) => { - if let Some(mut symbol) = structure_node(&node) { - symbol.parent = stack.last().copied(); - stack.push(res.len()); - res.push(symbol); - } - } - WalkEvent::Leave(node) => { - if structure_node(&node).is_some() { - stack.pop().unwrap(); - } - } - } - } - res -} - -fn structure_node(node: &SyntaxNode) -> Option { - fn decl(node: N) -> Option { - decl_with_detail(node, None) - } - - fn decl_with_ascription( - node: N, - ) -> Option { - let ty = node.ascribed_type(); - decl_with_type_ref(node, ty) - } - - fn decl_with_type_ref( - node: N, - type_ref: Option, - ) -> Option { - let detail = type_ref.map(|type_ref| { - let mut detail = String::new(); - collapse_ws(type_ref.syntax(), &mut detail); - detail - }); - decl_with_detail(node, detail) - } - - fn decl_with_detail( - node: N, - detail: Option, - ) -> Option { - let name = node.name()?; - - Some(StructureNode { - parent: None, - label: name.text().to_string(), - navigation_range: name.syntax().text_range(), - node_range: node.syntax().text_range(), - kind: node.syntax().kind(), - detail, - deprecated: node.attrs().filter_map(|x| x.simple_name()).any(|x| x == "deprecated"), - }) - } - - fn collapse_ws(node: &SyntaxNode, output: &mut String) { - let mut can_insert_ws = false; - node.text().for_each_chunk(|chunk| { - for line in chunk.lines() { - let line = line.trim(); - if line.is_empty() { - if can_insert_ws { - output.push(' '); - can_insert_ws = false; - } - } else { - output.push_str(line); - can_insert_ws = true; - } - } - }) - } - - match_ast! { - match node { - ast::FnDef(it) => { - let mut detail = String::from("fn"); - if let Some(type_param_list) = it.type_param_list() { - collapse_ws(type_param_list.syntax(), &mut detail); - } - if let Some(param_list) = it.param_list() { - collapse_ws(param_list.syntax(), &mut detail); - } - if let Some(ret_type) = it.ret_type() { - detail.push_str(" "); - collapse_ws(ret_type.syntax(), &mut detail); - } - - decl_with_detail(it, Some(detail)) - }, - ast::StructDef(it) => decl(it), - ast::UnionDef(it) => decl(it), - ast::EnumDef(it) => decl(it), - ast::EnumVariant(it) => decl(it), - ast::TraitDef(it) => decl(it), - ast::Module(it) => decl(it), - ast::TypeAliasDef(it) => { - let ty = it.type_ref(); - decl_with_type_ref(it, ty) - }, - ast::RecordFieldDef(it) => decl_with_ascription(it), - ast::ConstDef(it) => decl_with_ascription(it), - ast::StaticDef(it) => decl_with_ascription(it), - ast::ImplDef(it) => { - let target_type = it.target_type()?; - let target_trait = it.target_trait(); - let label = match target_trait { - None => format!("impl {}", target_type.syntax().text()), - Some(t) => { - format!("impl {} for {}", t.syntax().text(), target_type.syntax().text(),) - } - }; - - let node = StructureNode { - parent: None, - label, - navigation_range: target_type.syntax().text_range(), - node_range: it.syntax().text_range(), - kind: it.syntax().kind(), - detail: None, - deprecated: false, - }; - Some(node) - }, - ast::MacroCall(it) => { - match it.path().and_then(|it| it.segment()).and_then(|it| it.name_ref()) { - Some(path_segment) if path_segment.text() == "macro_rules" - => decl(it), - _ => None, - } - }, - _ => None, - } - } -} - -#[cfg(test)] -mod tests { - use expect::{expect, Expect}; - - use super::*; - - fn check(ra_fixture: &str, expect: Expect) { - let file = SourceFile::parse(ra_fixture).ok().unwrap(); - let structure = file_structure(&file); - expect.assert_debug_eq(&structure) - } - - #[test] - fn test_file_structure() { - check( - r#" -struct Foo { - x: i32 -} - -mod m { - fn bar1() {} - fn bar2(t: T) -> T {} - fn bar3(a: A, - b: B) -> Vec< - u32 - > {} -} - -enum E { X, Y(i32) } -type T = (); -static S: i32 = 92; -const C: i32 = 92; - -impl E {} - -impl fmt::Debug for E {} - -macro_rules! mc { - () => {} -} - -#[macro_export] -macro_rules! mcexp { - () => {} -} - -/// Doc comment -macro_rules! mcexp { - () => {} -} - -#[deprecated] -fn obsolete() {} - -#[deprecated(note = "for awhile")] -fn very_obsolete() {} -"#, - expect![[r#" - [ - StructureNode { - parent: None, - label: "Foo", - navigation_range: 8..11, - node_range: 1..26, - kind: STRUCT_DEF, - detail: None, - deprecated: false, - }, - StructureNode { - parent: Some( - 0, - ), - label: "x", - navigation_range: 18..19, - node_range: 18..24, - kind: RECORD_FIELD_DEF, - detail: Some( - "i32", - ), - deprecated: false, - }, - StructureNode { - parent: None, - label: "m", - navigation_range: 32..33, - node_range: 28..158, - kind: MODULE, - detail: None, - deprecated: false, - }, - StructureNode { - parent: Some( - 2, - ), - label: "bar1", - navigation_range: 43..47, - node_range: 40..52, - kind: FN_DEF, - detail: Some( - "fn()", - ), - deprecated: false, - }, - StructureNode { - parent: Some( - 2, - ), - label: "bar2", - navigation_range: 60..64, - node_range: 57..81, - kind: FN_DEF, - detail: Some( - "fn(t: T) -> T", - ), - deprecated: false, - }, - StructureNode { - parent: Some( - 2, - ), - label: "bar3", - navigation_range: 89..93, - node_range: 86..156, - kind: FN_DEF, - detail: Some( - "fn(a: A, b: B) -> Vec< u32 >", - ), - deprecated: false, - }, - StructureNode { - parent: None, - label: "E", - navigation_range: 165..166, - node_range: 160..180, - kind: ENUM_DEF, - detail: None, - deprecated: false, - }, - StructureNode { - parent: Some( - 6, - ), - label: "X", - navigation_range: 169..170, - node_range: 169..170, - kind: ENUM_VARIANT, - detail: None, - deprecated: false, - }, - StructureNode { - parent: Some( - 6, - ), - label: "Y", - navigation_range: 172..173, - node_range: 172..178, - kind: ENUM_VARIANT, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "T", - navigation_range: 186..187, - node_range: 181..193, - kind: TYPE_ALIAS_DEF, - detail: Some( - "()", - ), - deprecated: false, - }, - StructureNode { - parent: None, - label: "S", - navigation_range: 201..202, - node_range: 194..213, - kind: STATIC_DEF, - detail: Some( - "i32", - ), - deprecated: false, - }, - StructureNode { - parent: None, - label: "C", - navigation_range: 220..221, - node_range: 214..232, - kind: CONST_DEF, - detail: Some( - "i32", - ), - deprecated: false, - }, - StructureNode { - parent: None, - label: "impl E", - navigation_range: 239..240, - node_range: 234..243, - kind: IMPL_DEF, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "impl fmt::Debug for E", - navigation_range: 265..266, - node_range: 245..269, - kind: IMPL_DEF, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "mc", - navigation_range: 284..286, - node_range: 271..303, - kind: MACRO_CALL, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "mcexp", - navigation_range: 334..339, - node_range: 305..356, - kind: MACRO_CALL, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "mcexp", - navigation_range: 387..392, - node_range: 358..409, - kind: MACRO_CALL, - detail: None, - deprecated: false, - }, - StructureNode { - parent: None, - label: "obsolete", - navigation_range: 428..436, - node_range: 411..441, - kind: FN_DEF, - detail: Some( - "fn()", - ), - deprecated: true, - }, - StructureNode { - parent: None, - label: "very_obsolete", - navigation_range: 481..494, - node_range: 443..499, - kind: FN_DEF, - detail: Some( - "fn()", - ), - deprecated: true, - }, - ] - "#]], - ); - } -} -- cgit v1.2.3