Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/syntax/src/ast/edit_in_place.rs')
| -rw-r--r-- | crates/syntax/src/ast/edit_in_place.rs | 196 |
1 files changed, 18 insertions, 178 deletions
diff --git a/crates/syntax/src/ast/edit_in_place.rs b/crates/syntax/src/ast/edit_in_place.rs index 28b543ea70..b50ce64424 100644 --- a/crates/syntax/src/ast/edit_in_place.rs +++ b/crates/syntax/src/ast/edit_in_place.rs @@ -9,11 +9,11 @@ use crate::{ SyntaxKind::{ATTR, COMMENT, WHITESPACE}, SyntaxNode, SyntaxToken, algo::{self, neighbor}, - ast::{self, HasGenericArgs, HasGenericParams, edit::IndentLevel, make}, + ast::{self, HasGenericParams, edit::IndentLevel, make}, ted::{self, Position}, }; -use super::{GenericParam, HasArgList, HasName}; +use super::{GenericParam, HasName}; pub trait GenericParamsOwnerEdit: ast::HasGenericParams { fn get_or_create_generic_param_list(&self) -> ast::GenericParamList; @@ -383,10 +383,10 @@ impl ast::GenericParamList { impl ast::WhereClause { pub fn add_predicate(&self, predicate: ast::WherePred) { - if let Some(pred) = self.predicates().last() { - if !pred.syntax().siblings_with_tokens(Direction::Next).any(|it| it.kind() == T![,]) { - ted::append_child_raw(self.syntax(), make::token(T![,])); - } + if let Some(pred) = self.predicates().last() + && !pred.syntax().siblings_with_tokens(Direction::Next).any(|it| it.kind() == T![,]) + { + ted::append_child_raw(self.syntax(), make::token(T![,])); } ted::append_child(self.syntax(), predicate.syntax()); } @@ -419,34 +419,6 @@ impl Removable for ast::TypeBoundList { } } -impl ast::PathSegment { - pub fn get_or_create_generic_arg_list(&self) -> ast::GenericArgList { - if self.generic_arg_list().is_none() { - let arg_list = make::generic_arg_list(empty()).clone_for_update(); - ted::append_child(self.syntax(), arg_list.syntax()); - } - self.generic_arg_list().unwrap() - } -} - -impl ast::MethodCallExpr { - pub fn get_or_create_generic_arg_list(&self) -> ast::GenericArgList { - if self.generic_arg_list().is_none() { - let generic_arg_list = make::turbofish_generic_arg_list(empty()).clone_for_update(); - - if let Some(arg_list) = self.arg_list() { - ted::insert_raw( - ted::Position::before(arg_list.syntax()), - generic_arg_list.syntax(), - ); - } else { - ted::append_child(self.syntax(), generic_arg_list.syntax()); - } - } - self.generic_arg_list().unwrap() - } -} - impl Removable for ast::UseTree { fn remove(&self) { for dir in [Direction::Next, Direction::Prev] { @@ -677,106 +649,6 @@ impl ast::AssocItemList { ]; ted::insert_all(position, elements); } - - /// Adds a new associated item at the start of the associated item list. - /// - /// Attention! This function does align the first line of `item` with respect to `self`, - /// but it does _not_ change indentation of other lines (if any). - pub fn add_item_at_start(&self, item: ast::AssocItem) { - match self.assoc_items().next() { - Some(first_item) => { - let indent = IndentLevel::from_node(first_item.syntax()); - let before = Position::before(first_item.syntax()); - - ted::insert_all( - before, - vec![ - item.syntax().clone().into(), - make::tokens::whitespace(&format!("\n\n{indent}")).into(), - ], - ) - } - None => { - let (indent, position, whitespace) = match self.l_curly_token() { - Some(l_curly) => { - normalize_ws_between_braces(self.syntax()); - (IndentLevel::from_token(&l_curly) + 1, Position::after(&l_curly), "\n") - } - None => (IndentLevel::single(), Position::first_child_of(self.syntax()), ""), - }; - - let mut elements = vec![]; - - // Avoid pushing an empty whitespace token - if !indent.is_zero() || !whitespace.is_empty() { - elements.push(make::tokens::whitespace(&format!("{whitespace}{indent}")).into()) - } - elements.push(item.syntax().clone().into()); - - ted::insert_all(position, elements) - } - }; - } -} - -impl ast::Fn { - pub fn get_or_create_body(&self) -> ast::BlockExpr { - if self.body().is_none() { - let body = make::ext::empty_block_expr().clone_for_update(); - match self.semicolon_token() { - Some(semi) => { - ted::replace(semi, body.syntax()); - ted::insert(Position::before(body.syntax), make::tokens::single_space()); - } - None => ted::append_child(self.syntax(), body.syntax()), - } - } - self.body().unwrap() - } -} - -impl ast::LetStmt { - pub fn set_ty(&self, ty: Option<ast::Type>) { - match ty { - None => { - if let Some(colon_token) = self.colon_token() { - ted::remove(colon_token); - } - - if let Some(existing_ty) = self.ty() { - if let Some(sibling) = existing_ty.syntax().prev_sibling_or_token() { - if sibling.kind() == SyntaxKind::WHITESPACE { - ted::remove(sibling); - } - } - - ted::remove(existing_ty.syntax()); - } - - // Remove any trailing ws - if let Some(last) = self.syntax().last_token().filter(|it| it.kind() == WHITESPACE) - { - last.detach(); - } - } - Some(new_ty) => { - if self.colon_token().is_none() { - ted::insert_raw( - Position::after( - self.pat().expect("let stmt should have a pattern").syntax(), - ), - make::token(T![:]), - ); - } - - if let Some(old_ty) = self.ty() { - ted::replace(old_ty.syntax(), new_ty.syntax()); - } else { - ted::insert(Position::after(self.colon_token().unwrap()), new_ty.syntax()); - } - } - } - } } impl ast::RecordExprFieldList { @@ -823,19 +695,18 @@ impl ast::RecordExprField { return; } // this is a shorthand - if let Some(ast::Expr::PathExpr(path_expr)) = self.expr() { - if let Some(path) = path_expr.path() { - if let Some(name_ref) = path.as_single_name_ref() { - path_expr.syntax().detach(); - let children = vec![ - name_ref.syntax().clone().into(), - ast::make::token(T![:]).into(), - ast::make::tokens::single_space().into(), - expr.syntax().clone().into(), - ]; - ted::insert_all_raw(Position::last_child_of(self.syntax()), children); - } - } + if let Some(ast::Expr::PathExpr(path_expr)) = self.expr() + && let Some(path) = path_expr.path() + && let Some(name_ref) = path.as_single_name_ref() + { + path_expr.syntax().detach(); + let children = vec![ + name_ref.syntax().clone().into(), + ast::make::token(T![:]).into(), + ast::make::tokens::single_space().into(), + expr.syntax().clone().into(), + ]; + ted::insert_all_raw(Position::last_child_of(self.syntax()), children); } } } @@ -1092,35 +963,4 @@ mod tests { check("let a @ ()", "let a", None); check("let a @ ", "let a", None); } - - #[test] - fn test_let_stmt_set_ty() { - #[track_caller] - fn check(before: &str, expected: &str, ty: Option<ast::Type>) { - let ty = ty.map(|it| it.clone_for_update()); - - let let_stmt = ast_mut_from_text::<ast::LetStmt>(&format!("fn f() {{ {before} }}")); - let_stmt.set_ty(ty); - - let after = ast_mut_from_text::<ast::LetStmt>(&format!("fn f() {{ {expected} }}")); - assert_eq!(let_stmt.to_string(), after.to_string(), "{let_stmt:#?}\n!=\n{after:#?}"); - } - - // adding - check("let a;", "let a: ();", Some(make::ty_tuple([]))); - // no semicolon due to it being eaten during error recovery - check("let a:", "let a: ()", Some(make::ty_tuple([]))); - - // replacing - check("let a: u8;", "let a: ();", Some(make::ty_tuple([]))); - check("let a: u8 = 3;", "let a: () = 3;", Some(make::ty_tuple([]))); - check("let a: = 3;", "let a: () = 3;", Some(make::ty_tuple([]))); - - // removing - check("let a: u8;", "let a;", None); - check("let a:;", "let a;", None); - - check("let a: u8 = 3;", "let a = 3;", None); - check("let a: = 3;", "let a = 3;", None); - } } |