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//! Settings for tweaking completion.
//!
//! The fun thing here is `SnippetCap` -- this type can only be created in this
//! module, and we use to statically check that we only produce snippet
//! completions if we are allowed to.
use ide_db::helpers::insert_use::MergeBehavior;
use rustc_hash::FxHashSet;
#[derive(Clone, Debug, PartialEq, Eq)]
pub struct CompletionConfig {
pub enable_postfix_completions: bool,
pub enable_autoimport_completions: bool,
pub add_call_parenthesis: bool,
pub add_call_argument_snippets: bool,
pub snippet_cap: Option<SnippetCap>,
pub merge: Option<MergeBehavior>,
/// A set of capabilities, enabled on the client and supported on the server.
pub active_resolve_capabilities: FxHashSet<CompletionResolveCapability>,
}
/// A resolve capability, supported on the server.
/// If the client registers any completion resolve capabilities,
/// the server is able to render completion items' corresponding fields later,
/// not during an initial completion item request.
/// See https://github.com/rust-analyzer/rust-analyzer/issues/6366 for more details.
#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq)]
pub enum CompletionResolveCapability {
Documentation,
Detail,
AdditionalTextEdits,
}
impl CompletionConfig {
pub fn allow_snippets(&mut self, yes: bool) {
self.snippet_cap = if yes { Some(SnippetCap { _private: () }) } else { None }
}
/// Whether the completions' additional edits are calculated when sending an initional completions list
/// or later, in a separate resolve request.
pub fn resolve_additional_edits_lazily(&self) -> bool {
self.active_resolve_capabilities.contains(&CompletionResolveCapability::AdditionalTextEdits)
}
}
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub struct SnippetCap {
_private: (),
}
impl Default for CompletionConfig {
fn default() -> Self {
CompletionConfig {
enable_postfix_completions: true,
enable_autoimport_completions: true,
add_call_parenthesis: true,
add_call_argument_snippets: true,
snippet_cap: Some(SnippetCap { _private: () }),
merge: Some(MergeBehavior::Full),
active_resolve_capabilities: FxHashSet::default(),
}
}
}
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