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LSP: Two stage initialization

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Fills in server information.

Derives CodeAction capabilities from the client. If code action literals
are unsupported we fall back to the "simple support" which just sends back
commands (this is already supported in our config). The difference being
that we did not adjust our server capabilities so that if the client was
checking for `CodeActionProvider: "true"` in the response that would have failed.
This commit is contained in:
kjeremy
2020-05-19 11:56:51 -04:00
parent 5c1c23ecc7
commit 6bf4fc27d9
3 changed files with 57 additions and 26 deletions
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17
crates/rust-analyzer/src/bin/main.rs
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@@ -74,12 +74,25 @@ fn run_server() -> Result<()> {
log::info!("lifecycle: server started");
let (connection, io_threads) = Connection::stdio();
let server_capabilities = serde_json::to_value(rust_analyzer::server_capabilities()).unwrap();
let initialize_params = connection.initialize(server_capabilities)?;
let (initialize_id, initialize_params) = connection.initialize_start()?;
let initialize_params =
from_json::<lsp_types::InitializeParams>("InitializeParams", initialize_params)?;
let server_capabilities = rust_analyzer::server_capabilities(&initialize_params.capabilities);
let initialize_result = lsp_types::InitializeResult {
capabilities: server_capabilities,
server_info: Some(lsp_types::ServerInfo {
name: String::from("rust-analyzer"),
version: None,
}),
};
let initialize_result = serde_json::to_value(initialize_result).unwrap();
connection.initialize_finish(initialize_id, initialize_result)?;
if let Some(client_info) = initialize_params.client_info {
log::info!("Client '{}' {}", client_info.name, client_info.version.unwrap_or_default());
}