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//! Advertizes the capabilities of the LSP Server.
use std::env;
use lsp_types::{
CallHierarchyServerCapability, ClientCapabilities, CodeActionOptions,
CodeActionProviderCapability, CodeLensOptions, CompletionOptions,
DocumentOnTypeFormattingOptions, FoldingRangeProviderCapability,
ImplementationProviderCapability, RenameOptions, RenameProviderCapability, SaveOptions,
SelectionRangeProviderCapability, SemanticTokensDocumentProvider, SemanticTokensLegend,
SemanticTokensOptions, ServerCapabilities, SignatureHelpOptions, TextDocumentSyncCapability,
TextDocumentSyncKind, TextDocumentSyncOptions, TypeDefinitionProviderCapability,
WorkDoneProgressOptions,
};
use serde_json::json;
use crate::semantic_tokens;
pub fn server_capabilities(client_caps: &ClientCapabilities) -> ServerCapabilities {
let code_action_provider = code_action_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()),
})),
hover_provider: Some(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: Some(
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(),
),
experimental: Some(json!({
"joinLines": true,
"ssr": true,
"onEnter": true,
"parentModule": true,
})),
}
}
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), |_| {
CodeActionProviderCapability::Options(CodeActionOptions {
// Advertise support for all built-in CodeActionKinds.
// Ideally we would base this off of the client capabilities
// but the client is supposed to fall back gracefully for unknown values.
code_action_kinds: Some(vec![
lsp_types::code_action_kind::EMPTY.to_string(),
lsp_types::code_action_kind::QUICKFIX.to_string(),
lsp_types::code_action_kind::REFACTOR.to_string(),
lsp_types::code_action_kind::REFACTOR_EXTRACT.to_string(),
lsp_types::code_action_kind::REFACTOR_INLINE.to_string(),
lsp_types::code_action_kind::REFACTOR_REWRITE.to_string(),
lsp_types::code_action_kind::SOURCE.to_string(),
lsp_types::code_action_kind::SOURCE_ORGANIZE_IMPORTS.to_string(),
]),
work_done_progress_options: Default::default(),
})
})
}
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