70 lines
2.0 KiB
Rust
70 lines
2.0 KiB
Rust
use serde::{Deserialize, Deserializer};
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/// Client provided initialization options
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#[derive(Deserialize, Clone, Copy, Debug, PartialEq, Eq)]
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#[serde(rename_all = "camelCase", default)]
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pub struct InitializationOptions {
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/// Whether the client supports our custom highlighting publishing decorations.
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/// This is different to the highlightingOn setting, which is whether the user
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/// wants our custom highlighting to be used.
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///
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/// Defaults to `false`
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#[serde(deserialize_with = "nullable_bool_false")]
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pub publish_decorations: bool,
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/// Whether or not the workspace loaded notification should be sent
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///
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/// Defaults to `true`
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#[serde(deserialize_with = "nullable_bool_true")]
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pub show_workspace_loaded: bool,
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pub lru_capacity: Option<usize>,
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}
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impl Default for InitializationOptions {
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fn default() -> InitializationOptions {
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InitializationOptions {
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publish_decorations: false,
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show_workspace_loaded: true,
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lru_capacity: None,
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}
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}
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}
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/// Deserializes a null value to a bool false by default
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fn nullable_bool_false<'de, D>(deserializer: D) -> Result<bool, D::Error>
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where
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D: Deserializer<'de>,
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{
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let opt = Option::deserialize(deserializer)?;
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Ok(opt.unwrap_or(false))
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}
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/// Deserializes a null value to a bool true by default
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fn nullable_bool_true<'de, D>(deserializer: D) -> Result<bool, D::Error>
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where
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D: Deserializer<'de>,
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{
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let opt = Option::deserialize(deserializer)?;
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Ok(opt.unwrap_or(true))
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn deserialize_init_options_defaults() {
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// check that null == default for both fields
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let default = InitializationOptions::default();
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assert_eq!(default, serde_json::from_str(r#"{}"#).unwrap());
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assert_eq!(
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default,
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serde_json::from_str(
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r#"{"publishDecorations":null, "showWorkspaceLoaded":null, "lruCapacity":null}"#
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)
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.unwrap()
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);
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}
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}
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