268fa1cbaf
This PR adds **internal** ability to run arbitrary language servers via WebAssembly extensions. The functionality isn't exposed yet - we're just landing this in this early state because there have been a lot of changes to the `LspAdapter` trait, and other language server logic. ## Next steps * Currently, wasm extensions can only define how to *install* and run a language server, they can't yet implement the other LSP adapter methods, such as formatting completion labels and workspace symbols. * We don't have an automatic way to install or develop these types of extensions * We don't have a way to package these types of extensions in our extensions repo, to make them available via our extensions API. * The Rust extension API crate, `zed-extension-api` has not yet been published to crates.io, because we still consider the API a work in progress. Release Notes: - N/A --------- Co-authored-by: Marshall <marshall@zed.dev> Co-authored-by: Nathan <nathan@zed.dev> Co-authored-by: Marshall Bowers <elliott.codes@gmail.com>
56 lines
1.5 KiB
Rust
56 lines
1.5 KiB
Rust
use anyhow::{anyhow, Result};
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use async_trait::async_trait;
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use language::{LanguageServerName, LspAdapter, LspAdapterDelegate};
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use lsp::LanguageServerBinary;
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use std::{any::Any, path::PathBuf};
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pub struct ErlangLspAdapter;
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#[async_trait]
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impl LspAdapter for ErlangLspAdapter {
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fn name(&self) -> LanguageServerName {
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LanguageServerName("erlang_ls".into())
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}
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async fn fetch_latest_server_version(
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&self,
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_: &dyn LspAdapterDelegate,
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) -> Result<Box<dyn 'static + Send + Any>> {
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Ok(Box::new(()) as Box<_>)
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}
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async fn fetch_server_binary(
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&self,
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_version: Box<dyn 'static + Send + Any>,
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_container_dir: PathBuf,
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_: &dyn LspAdapterDelegate,
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) -> Result<LanguageServerBinary> {
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Err(anyhow!(
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"erlang_ls must be installed and available in your $PATH"
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))
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}
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async fn cached_server_binary(
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&self,
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_: PathBuf,
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_: &dyn LspAdapterDelegate,
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) -> Option<LanguageServerBinary> {
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Some(LanguageServerBinary {
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path: "erlang_ls".into(),
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env: None,
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arguments: vec![],
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})
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}
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fn can_be_reinstalled(&self) -> bool {
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false
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}
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async fn installation_test_binary(&self, _: PathBuf) -> Option<LanguageServerBinary> {
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Some(LanguageServerBinary {
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path: "erlang_ls".into(),
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env: None,
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arguments: vec!["--version".into()],
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})
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}
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}
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