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|
//! Advertizes the capabilities of the LSP Server.
use std::env;
use lsp_types::{
CallHierarchyServerCapability, ClientCapabilities, CodeActionKind, CodeActionOptions,
CodeActionProviderCapability, CodeLensOptions, CompletionOptions,
DocumentOnTypeFormattingOptions, FoldingRangeProviderCapability, HoverProviderCapability,
ImplementationProviderCapability, RenameOptions, RenameProviderCapability, SaveOptions,
SelectionRangeProviderCapability, SemanticTokensDocumentProvider, SemanticTokensLegend,
SemanticTokensOptions, SemanticTokensServerCapabilities, ServerCapabilities,
SignatureHelpOptions, TextDocumentSyncCapability, TextDocumentSyncKind,
TextDocumentSyncOptions, TypeDefinitionProviderCapability, WorkDoneProgressOptions,
};
use serde_json::{json, Value};
use crate::semantic_tokens;
pub fn server_capabilities(client_caps: &ClientCapabilities) -> ServerCapabilities {
let code_action_provider = code_action_capabilities(client_caps);
let semantic_tokens_provider = semantic_tokens_capabilities(client_caps);
let experimental = experimental_capabilities(client_caps);
ServerCapabilities {
text_document_sync: Some(TextDocumentSyncCapability::Options(TextDocumentSyncOptions {
open_close: Some(true),
change: Some(if env::var("RA_NO_INCREMENTAL_SYNC").is_ok() {
TextDocumentSyncKind::Full
} else {
TextDocumentSyncKind::Incremental
}),
will_save: None,
will_save_wait_until: None,
save: Some(SaveOptions::default().into()),
})),
hover_provider: Some(HoverProviderCapability::Simple(true)),
completion_provider: Some(CompletionOptions {
resolve_provider: None,
trigger_characters: Some(vec![":".to_string(), ".".to_string()]),
work_done_progress_options: WorkDoneProgressOptions { work_done_progress: None },
}),
signature_help_provider: Some(SignatureHelpOptions {
trigger_characters: Some(vec!["(".to_string(), ",".to_string()]),
retrigger_characters: None,
work_done_progress_options: WorkDoneProgressOptions { work_done_progress: None },
}),
declaration_provider: None,
definition_provider: Some(true),
type_definition_provider: Some(TypeDefinitionProviderCapability::Simple(true)),
implementation_provider: Some(ImplementationProviderCapability::Simple(true)),
references_provider: Some(true),
document_highlight_provider: Some(true),
document_symbol_provider: Some(true),
workspace_symbol_provider: Some(true),
code_action_provider: Some(code_action_provider),
code_lens_provider: Some(CodeLensOptions { resolve_provider: Some(true) }),
document_formatting_provider: Some(true),
document_range_formatting_provider: None,
document_on_type_formatting_provider: Some(DocumentOnTypeFormattingOptions {
first_trigger_character: "=".to_string(),
more_trigger_character: Some(vec![".".to_string(), ">".to_string()]),
}),
selection_range_provider: Some(SelectionRangeProviderCapability::Simple(true)),
semantic_highlighting: None,
folding_range_provider: Some(FoldingRangeProviderCapability::Simple(true)),
rename_provider: Some(RenameProviderCapability::Options(RenameOptions {
prepare_provider: Some(true),
work_done_progress_options: WorkDoneProgressOptions { work_done_progress: None },
})),
document_link_provider: None,
color_provider: None,
execute_command_provider: None,
workspace: None,
call_hierarchy_provider: Some(CallHierarchyServerCapability::Simple(true)),
semantic_tokens_provider,
experimental,
}
}
fn experimental_capabilities(client_caps: &ClientCapabilities) -> Option<Value> {
client_caps.experimental.as_ref().and_then(|it| {
it.as_object().map(|map| {
let mut obj = json!({});
let result = obj.as_object_mut().unwrap();
if map.contains_key("joinLines") {
result.insert("joinLines".into(), true.into());
}
if map.contains_key("ssr") {
result.insert("ssr".into(), true.into());
}
if map.contains_key("onEnter") {
result.insert("onEnter".into(), true.into());
}
if map.contains_key("parentModule") {
result.insert("parentModule".into(), true.into());
}
if map.contains_key("runnables") {
result.insert("runnables".into(), json!({ "kinds": [ "cargo" ] }));
}
obj
})
})
}
fn semantic_tokens_capabilities(
client_caps: &ClientCapabilities,
) -> Option<SemanticTokensServerCapabilities> {
client_caps.text_document.as_ref().and_then(|it| it.semantic_tokens.as_ref()).map(|_|
// client supports semanticTokens
SemanticTokensOptions {
legend: SemanticTokensLegend {
token_types: semantic_tokens::SUPPORTED_TYPES.to_vec(),
token_modifiers: semantic_tokens::SUPPORTED_MODIFIERS.to_vec(),
},
document_provider: Some(SemanticTokensDocumentProvider::Bool(true)),
range_provider: Some(true),
work_done_progress_options: Default::default(),
}
.into())
}
fn code_action_capabilities(client_caps: &ClientCapabilities) -> CodeActionProviderCapability {
client_caps
.text_document
.as_ref()
.and_then(|it| it.code_action.as_ref())
.and_then(|it| it.code_action_literal_support.as_ref())
.map_or(CodeActionProviderCapability::Simple(true), |caps| {
let mut action_kinds = vec![
CodeActionKind::EMPTY,
CodeActionKind::QUICKFIX,
CodeActionKind::REFACTOR,
CodeActionKind::REFACTOR_EXTRACT,
CodeActionKind::REFACTOR_INLINE,
CodeActionKind::REFACTOR_REWRITE,
];
// Not all clients can fall back gracefully for unknown values.
// Microsoft.VisualStudio.LanguageServer.Protocol.CodeActionKind does not support CodeActionKind::EMPTY
// So have to filter out.
action_kinds
.retain(|it| caps.code_action_kind.value_set.contains(&it.as_str().to_owned()));
CodeActionProviderCapability::Options(CodeActionOptions {
code_action_kinds: Some(action_kinds),
work_done_progress_options: Default::default(),
})
})
}
|
