Simplify proto conversion
Trait based infra in conv.rs is significantly more complicated than what we actually need here.
This commit is contained in:
Aleksey Kladov
566
crates/rust-analyzer/src/to_proto.rs
Normal file
566
crates/rust-analyzer/src/to_proto.rs
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@@ -0,0 +1,566 @@
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//! Conversion of rust-analyzer specific types to lsp_types equivalents.
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use ra_db::{FileId, FileRange};
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use ra_ide::{
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translate_offset_with_edit, Assist, CompletionItem, CompletionItemKind, Documentation,
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FileSystemEdit, Fold, FoldKind, FunctionSignature, Highlight, HighlightModifier, HighlightTag,
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InlayHint, InlayKind, InsertTextFormat, LineIndex, NavigationTarget, ReferenceAccess, Severity,
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SourceChange, SourceFileEdit,
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};
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use ra_syntax::{SyntaxKind, TextRange, TextSize};
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use ra_text_edit::{Indel, TextEdit};
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use ra_vfs::LineEndings;
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use crate::{req, semantic_tokens, world::WorldSnapshot, Result};
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pub(crate) fn position(line_index: &LineIndex, offset: TextSize) -> lsp_types::Position {
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let line_col = line_index.line_col(offset);
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let line = u64::from(line_col.line);
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let character = u64::from(line_col.col_utf16);
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lsp_types::Position::new(line, character)
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}
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pub(crate) fn range(line_index: &LineIndex, range: TextRange) -> lsp_types::Range {
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let start = position(line_index, range.start());
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let end = position(line_index, range.end());
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lsp_types::Range::new(start, end)
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}
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pub(crate) fn symbol_kind(syntax_kind: SyntaxKind) -> lsp_types::SymbolKind {
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match syntax_kind {
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SyntaxKind::FN_DEF => lsp_types::SymbolKind::Function,
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SyntaxKind::STRUCT_DEF => lsp_types::SymbolKind::Struct,
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SyntaxKind::ENUM_DEF => lsp_types::SymbolKind::Enum,
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SyntaxKind::ENUM_VARIANT => lsp_types::SymbolKind::EnumMember,
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SyntaxKind::TRAIT_DEF => lsp_types::SymbolKind::Interface,
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SyntaxKind::MACRO_CALL => lsp_types::SymbolKind::Function,
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SyntaxKind::MODULE => lsp_types::SymbolKind::Module,
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SyntaxKind::TYPE_ALIAS_DEF => lsp_types::SymbolKind::TypeParameter,
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SyntaxKind::RECORD_FIELD_DEF => lsp_types::SymbolKind::Field,
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SyntaxKind::STATIC_DEF => lsp_types::SymbolKind::Constant,
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SyntaxKind::CONST_DEF => lsp_types::SymbolKind::Constant,
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SyntaxKind::IMPL_DEF => lsp_types::SymbolKind::Object,
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_ => lsp_types::SymbolKind::Variable,
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}
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}
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pub(crate) fn document_highlight_kind(
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reference_access: ReferenceAccess,
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) -> lsp_types::DocumentHighlightKind {
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match reference_access {
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ReferenceAccess::Read => lsp_types::DocumentHighlightKind::Read,
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ReferenceAccess::Write => lsp_types::DocumentHighlightKind::Write,
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}
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}
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pub(crate) fn diagnostic_severity(severity: Severity) -> lsp_types::DiagnosticSeverity {
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match severity {
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Severity::Error => lsp_types::DiagnosticSeverity::Error,
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Severity::WeakWarning => lsp_types::DiagnosticSeverity::Hint,
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}
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}
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pub(crate) fn documentation(documentation: Documentation) -> lsp_types::Documentation {
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let value = crate::markdown::format_docs(documentation.as_str());
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let markup_content = lsp_types::MarkupContent { kind: lsp_types::MarkupKind::Markdown, value };
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lsp_types::Documentation::MarkupContent(markup_content)
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}
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pub(crate) fn insert_text_format(
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insert_text_format: InsertTextFormat,
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) -> lsp_types::InsertTextFormat {
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match insert_text_format {
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InsertTextFormat::Snippet => lsp_types::InsertTextFormat::Snippet,
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InsertTextFormat::PlainText => lsp_types::InsertTextFormat::PlainText,
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}
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}
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pub(crate) fn completion_item_kind(
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completion_item_kind: CompletionItemKind,
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) -> lsp_types::CompletionItemKind {
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match completion_item_kind {
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CompletionItemKind::Keyword => lsp_types::CompletionItemKind::Keyword,
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CompletionItemKind::Snippet => lsp_types::CompletionItemKind::Snippet,
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CompletionItemKind::Module => lsp_types::CompletionItemKind::Module,
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CompletionItemKind::Function => lsp_types::CompletionItemKind::Function,
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CompletionItemKind::Struct => lsp_types::CompletionItemKind::Struct,
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CompletionItemKind::Enum => lsp_types::CompletionItemKind::Enum,
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CompletionItemKind::EnumVariant => lsp_types::CompletionItemKind::EnumMember,
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CompletionItemKind::BuiltinType => lsp_types::CompletionItemKind::Struct,
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CompletionItemKind::Binding => lsp_types::CompletionItemKind::Variable,
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CompletionItemKind::Field => lsp_types::CompletionItemKind::Field,
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CompletionItemKind::Trait => lsp_types::CompletionItemKind::Interface,
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CompletionItemKind::TypeAlias => lsp_types::CompletionItemKind::Struct,
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CompletionItemKind::Const => lsp_types::CompletionItemKind::Constant,
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CompletionItemKind::Static => lsp_types::CompletionItemKind::Value,
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CompletionItemKind::Method => lsp_types::CompletionItemKind::Method,
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CompletionItemKind::TypeParam => lsp_types::CompletionItemKind::TypeParameter,
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CompletionItemKind::Macro => lsp_types::CompletionItemKind::Method,
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CompletionItemKind::Attribute => lsp_types::CompletionItemKind::EnumMember,
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}
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}
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pub(crate) fn text_edit(
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line_index: &LineIndex,
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line_endings: LineEndings,
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indel: Indel,
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) -> lsp_types::TextEdit {
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let range = range(line_index, indel.delete);
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let new_text = match line_endings {
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LineEndings::Unix => indel.insert,
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LineEndings::Dos => indel.insert.replace('\n', "\r\n"),
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};
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lsp_types::TextEdit { range, new_text }
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}
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pub(crate) fn text_edit_vec(
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line_index: &LineIndex,
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line_endings: LineEndings,
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text_edit: TextEdit,
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) -> Vec<lsp_types::TextEdit> {
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text_edit
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.as_indels()
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.iter()
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.map(|it| self::text_edit(line_index, line_endings, it.clone()))
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.collect()
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}
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pub(crate) fn completion_item(
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line_index: &LineIndex,
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line_endings: LineEndings,
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completion_item: CompletionItem,
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) -> lsp_types::CompletionItem {
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let mut additional_text_edits = Vec::new();
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let mut text_edit = None;
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// LSP does not allow arbitrary edits in completion, so we have to do a
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// non-trivial mapping here.
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let source_range = completion_item.source_range();
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for indel in completion_item.text_edit().as_indels() {
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if indel.delete.contains_range(source_range) {
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text_edit = Some(if indel.delete == source_range {
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self::text_edit(line_index, line_endings, indel.clone())
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} else {
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assert!(source_range.end() == indel.delete.end());
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let range1 = TextRange::new(indel.delete.start(), source_range.start());
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let range2 = source_range;
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let indel1 = Indel::replace(range1, String::new());
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let indel2 = Indel::replace(range2, indel.insert.clone());
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additional_text_edits.push(self::text_edit(line_index, line_endings, indel1));
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self::text_edit(line_index, line_endings, indel2)
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})
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} else {
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assert!(source_range.intersect(indel.delete).is_none());
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let text_edit = self::text_edit(line_index, line_endings, indel.clone());
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additional_text_edits.push(text_edit);
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}
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}
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let text_edit = text_edit.unwrap();
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let mut res = lsp_types::CompletionItem {
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label: completion_item.label().to_string(),
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detail: completion_item.detail().map(|it| it.to_string()),
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filter_text: Some(completion_item.lookup().to_string()),
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kind: completion_item.kind().map(completion_item_kind),
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text_edit: Some(text_edit.into()),
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additional_text_edits: Some(additional_text_edits),
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documentation: completion_item.documentation().map(documentation),
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deprecated: Some(completion_item.deprecated()),
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command: if completion_item.trigger_call_info() {
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let cmd = lsp_types::Command {
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title: "triggerParameterHints".into(),
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command: "editor.action.triggerParameterHints".into(),
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arguments: None,
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};
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Some(cmd)
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} else {
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None
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},
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..Default::default()
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};
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if completion_item.score().is_some() {
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res.preselect = Some(true)
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}
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if completion_item.deprecated() {
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res.tags = Some(vec![lsp_types::CompletionItemTag::Deprecated])
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}
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res.insert_text_format = Some(insert_text_format(completion_item.insert_text_format()));
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res
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}
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pub(crate) fn signature_information(
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signature: FunctionSignature,
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concise: bool,
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) -> lsp_types::SignatureInformation {
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let (label, documentation, params) = if concise {
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let mut params = signature.parameters;
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if signature.has_self_param {
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params.remove(0);
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}
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(params.join(", "), None, params)
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} else {
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(signature.to_string(), signature.doc.map(documentation), signature.parameters)
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};
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let parameters: Vec<lsp_types::ParameterInformation> = params
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.into_iter()
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.map(|param| lsp_types::ParameterInformation {
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label: lsp_types::ParameterLabel::Simple(param),
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documentation: None,
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})
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.collect();
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lsp_types::SignatureInformation { label, documentation, parameters: Some(parameters) }
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}
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pub(crate) fn inlay_int(line_index: &LineIndex, inlay_hint: InlayHint) -> req::InlayHint {
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req::InlayHint {
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label: inlay_hint.label.to_string(),
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range: range(line_index, inlay_hint.range),
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kind: match inlay_hint.kind {
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InlayKind::ParameterHint => req::InlayKind::ParameterHint,
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InlayKind::TypeHint => req::InlayKind::TypeHint,
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InlayKind::ChainingHint => req::InlayKind::ChainingHint,
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},
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}
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}
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// TODO: this is wrong
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pub(crate) fn token_type_index_modifiers_bitself(highlight: Highlight) -> (u32, u32) {
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let mut mods = semantic_tokens::ModifierSet::default();
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let type_ = match highlight.tag {
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HighlightTag::Struct => lsp_types::SemanticTokenType::STRUCT,
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HighlightTag::Enum => lsp_types::SemanticTokenType::ENUM,
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HighlightTag::Union => semantic_tokens::UNION,
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HighlightTag::TypeAlias => semantic_tokens::TYPE_ALIAS,
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HighlightTag::Trait => lsp_types::SemanticTokenType::INTERFACE,
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HighlightTag::BuiltinType => semantic_tokens::BUILTIN_TYPE,
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HighlightTag::SelfType => lsp_types::SemanticTokenType::TYPE,
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HighlightTag::Field => lsp_types::SemanticTokenType::MEMBER,
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HighlightTag::Function => lsp_types::SemanticTokenType::FUNCTION,
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HighlightTag::Module => lsp_types::SemanticTokenType::NAMESPACE,
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HighlightTag::Constant => {
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mods |= semantic_tokens::CONSTANT;
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mods |= lsp_types::SemanticTokenModifier::STATIC;
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lsp_types::SemanticTokenType::VARIABLE
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}
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HighlightTag::Static => {
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mods |= lsp_types::SemanticTokenModifier::STATIC;
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lsp_types::SemanticTokenType::VARIABLE
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}
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HighlightTag::EnumVariant => semantic_tokens::ENUM_MEMBER,
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HighlightTag::Macro => lsp_types::SemanticTokenType::MACRO,
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HighlightTag::Local => lsp_types::SemanticTokenType::VARIABLE,
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HighlightTag::TypeParam => lsp_types::SemanticTokenType::TYPE_PARAMETER,
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HighlightTag::Lifetime => semantic_tokens::LIFETIME,
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HighlightTag::ByteLiteral | HighlightTag::NumericLiteral => {
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lsp_types::SemanticTokenType::NUMBER
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}
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HighlightTag::CharLiteral | HighlightTag::StringLiteral => {
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lsp_types::SemanticTokenType::STRING
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}
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HighlightTag::Comment => lsp_types::SemanticTokenType::COMMENT,
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HighlightTag::Attribute => semantic_tokens::ATTRIBUTE,
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HighlightTag::Keyword => lsp_types::SemanticTokenType::KEYWORD,
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HighlightTag::UnresolvedReference => semantic_tokens::UNRESOLVED_REFERENCE,
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HighlightTag::FormatSpecifier => semantic_tokens::FORMAT_SPECIFIER,
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};
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for modifier in highlight.modifiers.iter() {
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let modifier = match modifier {
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HighlightModifier::Definition => lsp_types::SemanticTokenModifier::DECLARATION,
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HighlightModifier::ControlFlow => semantic_tokens::CONTROL_FLOW,
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HighlightModifier::Mutable => semantic_tokens::MUTABLE,
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HighlightModifier::Unsafe => semantic_tokens::UNSAFE,
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};
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mods |= modifier;
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}
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(semantic_tokens::type_index(type_), mods.0)
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}
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pub(crate) fn folding_range(
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text: &str,
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line_index: &LineIndex,
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line_folding_only: bool,
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fold: Fold,
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) -> lsp_types::FoldingRange {
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let kind = match fold.kind {
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FoldKind::Comment => Some(lsp_types::FoldingRangeKind::Comment),
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FoldKind::Imports => Some(lsp_types::FoldingRangeKind::Imports),
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FoldKind::Mods | FoldKind::Block => None,
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};
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let range = range(line_index, fold.range);
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if line_folding_only {
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// Clients with line_folding_only == true (such as VSCode) will fold the whole end line
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// even if it contains text not in the folding range. To prevent that we exclude
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// range.end.line from the folding region if there is more text after range.end
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// on the same line.
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let has_more_text_on_end_line = text[TextRange::new(fold.range.end(), TextSize::of(text))]
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.chars()
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.take_while(|it| *it != '\n')
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.any(|it| !it.is_whitespace());
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let end_line = if has_more_text_on_end_line {
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range.end.line.saturating_sub(1)
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} else {
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range.end.line
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};
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lsp_types::FoldingRange {
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start_line: range.start.line,
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start_character: None,
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end_line,
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end_character: None,
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kind,
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}
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} else {
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lsp_types::FoldingRange {
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start_line: range.start.line,
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start_character: Some(range.start.character),
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end_line: range.end.line,
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end_character: Some(range.end.character),
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kind,
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}
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}
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}
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pub(crate) fn url(world: &WorldSnapshot, file_id: FileId) -> Result<lsp_types::Url> {
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world.file_id_to_uri(file_id)
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}
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pub(crate) fn text_document_identifier(
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world: &WorldSnapshot,
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file_id: FileId,
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) -> Result<lsp_types::TextDocumentIdentifier> {
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let res = lsp_types::TextDocumentIdentifier { uri: url(world, file_id)? };
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Ok(res)
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}
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pub(crate) fn versioned_text_document_identifier(
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world: &WorldSnapshot,
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file_id: FileId,
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version: Option<i64>,
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) -> Result<lsp_types::VersionedTextDocumentIdentifier> {
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let res = lsp_types::VersionedTextDocumentIdentifier { uri: url(world, file_id)?, version };
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Ok(res)
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}
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pub(crate) fn location(world: &WorldSnapshot, frange: FileRange) -> Result<lsp_types::Location> {
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let url = url(world, frange.file_id)?;
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let line_index = world.analysis().file_line_index(frange.file_id)?;
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let range = range(&line_index, frange.range);
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let loc = lsp_types::Location::new(url, range);
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Ok(loc)
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}
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pub(crate) fn location_link(
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world: &WorldSnapshot,
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src: FileRange,
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target: NavigationTarget,
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) -> Result<lsp_types::LocationLink> {
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let src_location = location(world, src)?;
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let (target_uri, target_range, target_selection_range) = location_info(world, target)?;
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let res = lsp_types::LocationLink {
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origin_selection_range: Some(src_location.range),
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target_uri,
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target_range,
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target_selection_range,
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};
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Ok(res)
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}
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fn location_info(
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world: &WorldSnapshot,
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target: NavigationTarget,
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) -> Result<(lsp_types::Url, lsp_types::Range, lsp_types::Range)> {
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let line_index = world.analysis().file_line_index(target.file_id())?;
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let target_uri = url(world, target.file_id())?;
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let target_range = range(&line_index, target.full_range());
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let target_selection_range =
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target.focus_range().map(|it| range(&line_index, it)).unwrap_or(target_range);
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Ok((target_uri, target_range, target_selection_range))
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}
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pub(crate) fn goto_definition_response(
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world: &WorldSnapshot,
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src: FileRange,
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targets: Vec<NavigationTarget>,
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) -> Result<lsp_types::GotoDefinitionResponse> {
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if world.config.client_caps.location_link {
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let links = targets
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.into_iter()
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.map(|nav| location_link(world, src, nav))
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.collect::<Result<Vec<_>>>()?;
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Ok(links.into())
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} else {
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let locations = targets
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.into_iter()
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.map(|nav| {
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location(
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world,
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FileRange {
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file_id: nav.file_id(),
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range: nav.focus_range().unwrap_or(nav.range()),
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},
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)
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})
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.collect::<Result<Vec<_>>>()?;
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Ok(locations.into())
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}
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}
|
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pub(crate) fn text_document_edit(
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world: &WorldSnapshot,
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source_file_edit: SourceFileEdit,
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) -> Result<lsp_types::TextDocumentEdit> {
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let text_document = versioned_text_document_identifier(world, source_file_edit.file_id, None)?;
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let line_index = world.analysis().file_line_index(source_file_edit.file_id)?;
|
||||
let line_endings = world.file_line_endings(source_file_edit.file_id);
|
||||
let edits = source_file_edit
|
||||
.edit
|
||||
.as_indels()
|
||||
.iter()
|
||||
.map(|it| text_edit(&line_index, line_endings, it.clone()))
|
||||
.collect();
|
||||
Ok(lsp_types::TextDocumentEdit { text_document, edits })
|
||||
}
|
||||
|
||||
pub(crate) fn resource_op(
|
||||
world: &WorldSnapshot,
|
||||
file_system_edit: FileSystemEdit,
|
||||
) -> Result<lsp_types::ResourceOp> {
|
||||
let res = match file_system_edit {
|
||||
FileSystemEdit::CreateFile { source_root, path } => {
|
||||
let uri = world.path_to_uri(source_root, &path)?;
|
||||
lsp_types::ResourceOp::Create(lsp_types::CreateFile { uri, options: None })
|
||||
}
|
||||
FileSystemEdit::MoveFile { src, dst_source_root, dst_path } => {
|
||||
let old_uri = world.file_id_to_uri(src)?;
|
||||
let new_uri = world.path_to_uri(dst_source_root, &dst_path)?;
|
||||
lsp_types::ResourceOp::Rename(lsp_types::RenameFile { old_uri, new_uri, options: None })
|
||||
}
|
||||
};
|
||||
Ok(res)
|
||||
}
|
||||
|
||||
pub(crate) fn source_change(
|
||||
world: &WorldSnapshot,
|
||||
source_change: SourceChange,
|
||||
) -> Result<req::SourceChange> {
|
||||
let cursor_position = match source_change.cursor_position {
|
||||
None => None,
|
||||
Some(pos) => {
|
||||
let line_index = world.analysis().file_line_index(pos.file_id)?;
|
||||
let edit = source_change
|
||||
.source_file_edits
|
||||
.iter()
|
||||
.find(|it| it.file_id == pos.file_id)
|
||||
.map(|it| &it.edit);
|
||||
let line_col = match edit {
|
||||
Some(edit) => translate_offset_with_edit(&*line_index, pos.offset, edit),
|
||||
None => line_index.line_col(pos.offset),
|
||||
};
|
||||
let position =
|
||||
lsp_types::Position::new(u64::from(line_col.line), u64::from(line_col.col_utf16));
|
||||
Some(lsp_types::TextDocumentPositionParams {
|
||||
text_document: text_document_identifier(world, pos.file_id)?,
|
||||
position,
|
||||
})
|
||||
}
|
||||
};
|
||||
let mut document_changes: Vec<lsp_types::DocumentChangeOperation> = Vec::new();
|
||||
for op in source_change.file_system_edits {
|
||||
let op = resource_op(&world, op)?;
|
||||
document_changes.push(lsp_types::DocumentChangeOperation::Op(op));
|
||||
}
|
||||
for edit in source_change.source_file_edits {
|
||||
let edit = text_document_edit(&world, edit)?;
|
||||
document_changes.push(lsp_types::DocumentChangeOperation::Edit(edit));
|
||||
}
|
||||
let workspace_edit = lsp_types::WorkspaceEdit {
|
||||
changes: None,
|
||||
document_changes: Some(lsp_types::DocumentChanges::Operations(document_changes)),
|
||||
};
|
||||
Ok(req::SourceChange { label: source_change.label, workspace_edit, cursor_position })
|
||||
}
|
||||
|
||||
pub fn call_hierarchy_item(
|
||||
world: &WorldSnapshot,
|
||||
target: NavigationTarget,
|
||||
) -> Result<lsp_types::CallHierarchyItem> {
|
||||
let name = target.name().to_string();
|
||||
let detail = target.description().map(|it| it.to_string());
|
||||
let kind = symbol_kind(target.kind());
|
||||
let (uri, range, selection_range) = location_info(world, target)?;
|
||||
Ok(lsp_types::CallHierarchyItem { name, kind, tags: None, detail, uri, range, selection_range })
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use test_utils::extract_ranges;
|
||||
|
||||
use super::*;
|
||||
|
||||
#[test]
|
||||
fn conv_fold_line_folding_only_fixup() {
|
||||
let text = r#"<fold>mod a;
|
||||
mod b;
|
||||
mod c;</fold>
|
||||
|
||||
fn main() <fold>{
|
||||
if cond <fold>{
|
||||
a::do_a();
|
||||
}</fold> else <fold>{
|
||||
b::do_b();
|
||||
}</fold>
|
||||
}</fold>"#;
|
||||
|
||||
let (ranges, text) = extract_ranges(text, "fold");
|
||||
assert_eq!(ranges.len(), 4);
|
||||
let folds = vec![
|
||||
Fold { range: ranges[0], kind: FoldKind::Mods },
|
||||
Fold { range: ranges[1], kind: FoldKind::Block },
|
||||
Fold { range: ranges[2], kind: FoldKind::Block },
|
||||
Fold { range: ranges[3], kind: FoldKind::Block },
|
||||
];
|
||||
|
||||
let line_index = LineIndex::new(&text);
|
||||
let converted: Vec<lsp_types::FoldingRange> =
|
||||
folds.into_iter().map(|it| folding_range(&text, &line_index, true, it)).collect();
|
||||
|
||||
let expected_lines = [(0, 2), (4, 10), (5, 6), (7, 9)];
|
||||
assert_eq!(converted.len(), expected_lines.len());
|
||||
for (folding_range, (start_line, end_line)) in converted.iter().zip(expected_lines.iter()) {
|
||||
assert_eq!(folding_range.start_line, *start_line);
|
||||
assert_eq!(folding_range.start_character, None);
|
||||
assert_eq!(folding_range.end_line, *end_line);
|
||||
assert_eq!(folding_range.end_character, None);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub(crate) fn code_action(world: &WorldSnapshot, assist: Assist) -> Result<lsp_types::CodeAction> {
|
||||
let source_change = source_change(&world, assist.source_change)?;
|
||||
let arg = serde_json::to_value(source_change)?;
|
||||
let title = assist.label;
|
||||
let command = lsp_types::Command {
|
||||
title: title.clone(),
|
||||
command: "rust-analyzer.applySourceChange".to_string(),
|
||||
arguments: Some(vec![arg]),
|
||||
};
|
||||
|
||||
Ok(lsp_types::CodeAction {
|
||||
title,
|
||||
kind: Some(String::new()),
|
||||
diagnostics: None,
|
||||
edit: None,
|
||||
command: Some(command),
|
||||
is_preferred: None,
|
||||
})
|
||||
}
|
||||
Reference in New Issue
Block a user