From 1b0c7701cc97cd7bef8bb9729011d4cf291a60c5 Mon Sep 17 00:00:00 2001 From: Aleksey Kladov Date: Thu, 13 Aug 2020 17:42:52 +0200 Subject: Rename ra_ide -> ide --- .../ra_ide/src/completion/complete_trait_impl.rs | 488 --------------------- 1 file changed, 488 deletions(-) delete mode 100644 crates/ra_ide/src/completion/complete_trait_impl.rs (limited to 'crates/ra_ide/src/completion/complete_trait_impl.rs') diff --git a/crates/ra_ide/src/completion/complete_trait_impl.rs b/crates/ra_ide/src/completion/complete_trait_impl.rs deleted file mode 100644 index 478e31262..000000000 --- a/crates/ra_ide/src/completion/complete_trait_impl.rs +++ /dev/null @@ -1,488 +0,0 @@ -//! Completion for associated items in a trait implementation. -//! -//! This module adds the completion items related to implementing associated -//! items within a `impl Trait for Struct` block. The current context node -//! must be within either a `FN`, `TYPE_ALIAS`, or `CONST` node -//! and an direct child of an `IMPL`. -//! -//! # Examples -//! -//! Considering the following trait `impl`: -//! -//! ```ignore -//! trait SomeTrait { -//! fn foo(); -//! } -//! -//! impl SomeTrait for () { -//! fn f<|> -//! } -//! ``` -//! -//! may result in the completion of the following method: -//! -//! ```ignore -//! # trait SomeTrait { -//! # fn foo(); -//! # } -//! -//! impl SomeTrait for () { -//! fn foo() {}<|> -//! } -//! ``` - -use assists::utils::get_missing_assoc_items; -use hir::{self, Docs, HasSource}; -use syntax::{ - ast::{self, edit, Impl}, - AstNode, SyntaxKind, SyntaxNode, TextRange, T, -}; -use text_edit::TextEdit; - -use crate::{ - completion::{ - CompletionContext, CompletionItem, CompletionItemKind, CompletionKind, Completions, - }, - display::function_declaration, -}; - -pub(crate) fn complete_trait_impl(acc: &mut Completions, ctx: &CompletionContext) { - if let Some((trigger, impl_def)) = completion_match(ctx) { - match trigger.kind() { - SyntaxKind::NAME_REF => get_missing_assoc_items(&ctx.sema, &impl_def) - .into_iter() - .for_each(|item| match item { - hir::AssocItem::Function(fn_item) => { - add_function_impl(&trigger, acc, ctx, fn_item) - } - hir::AssocItem::TypeAlias(type_item) => { - add_type_alias_impl(&trigger, acc, ctx, type_item) - } - hir::AssocItem::Const(const_item) => { - add_const_impl(&trigger, acc, ctx, const_item) - } - }), - - SyntaxKind::FN => { - for missing_fn in get_missing_assoc_items(&ctx.sema, &impl_def) - .into_iter() - .filter_map(|item| match item { - hir::AssocItem::Function(fn_item) => Some(fn_item), - _ => None, - }) - { - add_function_impl(&trigger, acc, ctx, missing_fn); - } - } - - SyntaxKind::TYPE_ALIAS => { - for missing_fn in get_missing_assoc_items(&ctx.sema, &impl_def) - .into_iter() - .filter_map(|item| match item { - hir::AssocItem::TypeAlias(type_item) => Some(type_item), - _ => None, - }) - { - add_type_alias_impl(&trigger, acc, ctx, missing_fn); - } - } - - SyntaxKind::CONST => { - for missing_fn in get_missing_assoc_items(&ctx.sema, &impl_def) - .into_iter() - .filter_map(|item| match item { - hir::AssocItem::Const(const_item) => Some(const_item), - _ => None, - }) - { - add_const_impl(&trigger, acc, ctx, missing_fn); - } - } - - _ => {} - } - } -} - -fn completion_match(ctx: &CompletionContext) -> Option<(SyntaxNode, Impl)> { - let (trigger, impl_def_offset) = ctx.token.ancestors().find_map(|p| match p.kind() { - SyntaxKind::FN | SyntaxKind::TYPE_ALIAS | SyntaxKind::CONST | SyntaxKind::BLOCK_EXPR => { - Some((p, 2)) - } - SyntaxKind::NAME_REF => Some((p, 5)), - _ => None, - })?; - let impl_def = (0..impl_def_offset - 1) - .try_fold(trigger.parent()?, |t, _| t.parent()) - .and_then(ast::Impl::cast)?; - Some((trigger, impl_def)) -} - -fn add_function_impl( - fn_def_node: &SyntaxNode, - acc: &mut Completions, - ctx: &CompletionContext, - func: hir::Function, -) { - let fn_name = func.name(ctx.db).to_string(); - - let label = if !func.params(ctx.db).is_empty() { - format!("fn {}(..)", fn_name) - } else { - format!("fn {}()", fn_name) - }; - - let builder = CompletionItem::new(CompletionKind::Magic, ctx.source_range(), label) - .lookup_by(fn_name) - .set_documentation(func.docs(ctx.db)); - - let completion_kind = if func.has_self_param(ctx.db) { - CompletionItemKind::Method - } else { - CompletionItemKind::Function - }; - let range = TextRange::new(fn_def_node.text_range().start(), ctx.source_range().end()); - - let function_decl = function_declaration(&func.source(ctx.db).value); - match ctx.config.snippet_cap { - Some(cap) => { - let snippet = format!("{} {{\n $0\n}}", function_decl); - builder.snippet_edit(cap, TextEdit::replace(range, snippet)) - } - None => { - let header = format!("{} {{", function_decl); - builder.text_edit(TextEdit::replace(range, header)) - } - } - .kind(completion_kind) - .add_to(acc); -} - -fn add_type_alias_impl( - type_def_node: &SyntaxNode, - acc: &mut Completions, - ctx: &CompletionContext, - type_alias: hir::TypeAlias, -) { - let alias_name = type_alias.name(ctx.db).to_string(); - - let snippet = format!("type {} = ", alias_name); - - let range = TextRange::new(type_def_node.text_range().start(), ctx.source_range().end()); - - CompletionItem::new(CompletionKind::Magic, ctx.source_range(), snippet.clone()) - .text_edit(TextEdit::replace(range, snippet)) - .lookup_by(alias_name) - .kind(CompletionItemKind::TypeAlias) - .set_documentation(type_alias.docs(ctx.db)) - .add_to(acc); -} - -fn add_const_impl( - const_def_node: &SyntaxNode, - acc: &mut Completions, - ctx: &CompletionContext, - const_: hir::Const, -) { - let const_name = const_.name(ctx.db).map(|n| n.to_string()); - - if let Some(const_name) = const_name { - let snippet = make_const_compl_syntax(&const_.source(ctx.db).value); - - let range = TextRange::new(const_def_node.text_range().start(), ctx.source_range().end()); - - CompletionItem::new(CompletionKind::Magic, ctx.source_range(), snippet.clone()) - .text_edit(TextEdit::replace(range, snippet)) - .lookup_by(const_name) - .kind(CompletionItemKind::Const) - .set_documentation(const_.docs(ctx.db)) - .add_to(acc); - } -} - -fn make_const_compl_syntax(const_: &ast::Const) -> String { - let const_ = edit::remove_attrs_and_docs(const_); - - let const_start = const_.syntax().text_range().start(); - let const_end = const_.syntax().text_range().end(); - - let start = - const_.syntax().first_child_or_token().map_or(const_start, |f| f.text_range().start()); - - let end = const_ - .syntax() - .children_with_tokens() - .find(|s| s.kind() == T![;] || s.kind() == T![=]) - .map_or(const_end, |f| f.text_range().start()); - - let len = end - start; - let range = TextRange::new(0.into(), len); - - let syntax = const_.syntax().text().slice(range).to_string(); - - format!("{} = ", syntax.trim_end()) -} - -#[cfg(test)] -mod tests { - use expect::{expect, Expect}; - - use crate::completion::{ - test_utils::{check_edit, completion_list}, - CompletionKind, - }; - - fn check(ra_fixture: &str, expect: Expect) { - let actual = completion_list(ra_fixture, CompletionKind::Magic); - expect.assert_eq(&actual) - } - - #[test] - fn name_ref_function_type_const() { - check( - r#" -trait Test { - type TestType; - const TEST_CONST: u16; - fn test(); -} -struct T; - -impl Test for T { - t<|> -} -"#, - expect![[" -ct const TEST_CONST: u16 = \n\ -fn fn test() -ta type TestType = \n\ - "]], - ); - } - - #[test] - fn no_nested_fn_completions() { - check( - r" -trait Test { - fn test(); - fn test2(); -} -struct T; - -impl Test for T { - fn test() { - t<|> - } -} -", - expect![[""]], - ); - } - - #[test] - fn name_ref_single_function() { - check_edit( - "test", - r#" -trait Test { - fn test(); -} -struct T; - -impl Test for T { - t<|> -} -"#, - r#" -trait Test { - fn test(); -} -struct T; - -impl Test for T { - fn test() { - $0 -} -} -"#, - ); - } - - #[test] - fn single_function() { - check_edit( - "test", - r#" -trait Test { - fn test(); -} -struct T; - -impl Test for T { - fn t<|> -} -"#, - r#" -trait Test { - fn test(); -} -struct T; - -impl Test for T { - fn test() { - $0 -} -} -"#, - ); - } - - #[test] - fn hide_implemented_fn() { - check( - r#" -trait Test { - fn foo(); - fn foo_bar(); -} -struct T; - -impl Test for T { - fn foo() {} - fn f<|> -} -"#, - expect![[r#" - fn fn foo_bar() - "#]], - ); - } - - #[test] - fn generic_fn() { - check_edit( - "foo", - r#" -trait Test { - fn foo(); -} -struct T; - -impl Test for T { - fn f<|> -} -"#, - r#" -trait Test { - fn foo(); -} -struct T; - -impl Test for T { - fn foo() { - $0 -} -} -"#, - ); - check_edit( - "foo", - r#" -trait Test { - fn foo() where T: Into; -} -struct T; - -impl Test for T { - fn f<|> -} -"#, - r#" -trait Test { - fn foo() where T: Into; -} -struct T; - -impl Test for T { - fn foo() -where T: Into { - $0 -} -} -"#, - ); - } - - #[test] - fn associated_type() { - check_edit( - "SomeType", - r#" -trait Test { - type SomeType; -} - -impl Test for () { - type S<|> -} -"#, - " -trait Test { - type SomeType; -} - -impl Test for () { - type SomeType = \n\ -} -", - ); - } - - #[test] - fn associated_const() { - check_edit( - "SOME_CONST", - r#" -trait Test { - const SOME_CONST: u16; -} - -impl Test for () { - const S<|> -} -"#, - " -trait Test { - const SOME_CONST: u16; -} - -impl Test for () { - const SOME_CONST: u16 = \n\ -} -", - ); - - check_edit( - "SOME_CONST", - r#" -trait Test { - const SOME_CONST: u16 = 92; -} - -impl Test for () { - const S<|> -} -"#, - " -trait Test { - const SOME_CONST: u16 = 92; -} - -impl Test for () { - const SOME_CONST: u16 = \n\ -} -", - ); - } -} -- cgit v1.2.3