Add initial support for defining language server adapters in WebAssembly-based extensions (#8645)
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>
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84 changed files with 3714 additions and 1973 deletions
13
extensions/gleam/Cargo.toml
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extensions/gleam/Cargo.toml
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[package]
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name = "zed_gleam"
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version = "0.0.1"
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edition = "2021"
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[dependencies]
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zed_extension_api = { path = "../../crates/extension_api" }
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[lib]
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path = "src/gleam.rs"
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crate-type = ["cdylib"]
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[package.metadata.component]
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13
extensions/gleam/extension.toml
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extensions/gleam/extension.toml
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id = "gleam"
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name = "Gleam"
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description = "Gleam support for Zed"
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version = "0.0.1"
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authors = ["Marshall Bowers <elliott.codes@gmail.com>"]
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[language_servers.gleam]
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name = "Gleam LSP"
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language = "Gleam"
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[grammars.gleam]
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repository = "https://github.com/gleam-lang/tree-sitter-gleam"
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commit = "58b7cac8fc14c92b0677c542610d8738c373fa81"
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extensions/gleam/languages/gleam/config.toml
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extensions/gleam/languages/gleam/config.toml
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name = "Gleam"
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grammar = "gleam"
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path_suffixes = ["gleam"]
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line_comments = ["// ", "/// "]
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autoclose_before = ";:.,=}])>"
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brackets = [
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{ start = "{", end = "}", close = true, newline = true },
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{ start = "[", end = "]", close = true, newline = true },
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{ start = "(", end = ")", close = true, newline = true },
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{ start = "\"", end = "\"", close = true, newline = false, not_in = ["string", "comment"] },
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]
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extensions/gleam/languages/gleam/highlights.scm
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extensions/gleam/languages/gleam/highlights.scm
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@ -0,0 +1,130 @@
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; Comments
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(module_comment) @comment
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(statement_comment) @comment
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(comment) @comment
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; Constants
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(constant
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name: (identifier) @constant)
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; Modules
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(module) @module
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(import alias: (identifier) @module)
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(remote_type_identifier
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module: (identifier) @module)
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(remote_constructor_name
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module: (identifier) @module)
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((field_access
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record: (identifier) @module
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field: (label) @function)
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(#is-not? local))
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; Functions
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(unqualified_import (identifier) @function)
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(unqualified_import "type" (type_identifier) @type)
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(unqualified_import (type_identifier) @constructor)
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(function
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name: (identifier) @function)
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(external_function
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name: (identifier) @function)
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(function_parameter
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name: (identifier) @variable.parameter)
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((function_call
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function: (identifier) @function)
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(#is-not? local))
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((binary_expression
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operator: "|>"
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right: (identifier) @function)
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(#is-not? local))
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; "Properties"
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; Assumed to be intended to refer to a name for a field; something that comes
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; before ":" or after "."
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; e.g. record field names, tuple indices, names for named arguments, etc
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(label) @property
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(tuple_access
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index: (integer) @property)
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; Attributes
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(attribute
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"@" @attribute
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name: (identifier) @attribute)
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(attribute_value (identifier) @constant)
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; Type names
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(remote_type_identifier) @type
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(type_identifier) @type
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; Data constructors
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(constructor_name) @constructor
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; Literals
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(string) @string
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((escape_sequence) @warning
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; Deprecated in v0.33.0-rc2:
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(#eq? @warning "\\e"))
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(escape_sequence) @string.escape
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(bit_string_segment_option) @function.builtin
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(integer) @number
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(float) @number
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; Reserved identifiers
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; TODO: when tree-sitter supports `#any-of?` in the Rust bindings,
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; refactor this to use `#any-of?` rather than `#match?`
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((identifier) @warning
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(#match? @warning "^(auto|delegate|derive|else|implement|macro|test|echo)$"))
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; Variables
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(identifier) @variable
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(discard) @comment.unused
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; Keywords
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[
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(visibility_modifier) ; "pub"
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(opacity_modifier) ; "opaque"
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"as"
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"assert"
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"case"
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"const"
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; DEPRECATED: 'external' was removed in v0.30.
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"external"
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"fn"
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"if"
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"import"
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"let"
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"panic"
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"todo"
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"type"
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"use"
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] @keyword
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; Operators
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(binary_expression
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operator: _ @operator)
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(boolean_negation "!" @operator)
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(integer_negation "-" @operator)
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; Punctuation
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[
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"("
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")"
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"["
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"]"
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"{"
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"}"
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"<<"
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">>"
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] @punctuation.bracket
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[
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"."
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","
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;; Controversial -- maybe some are operators?
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":"
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"#"
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"="
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"->"
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".."
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"-"
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"<-"
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] @punctuation.delimiter
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3
extensions/gleam/languages/gleam/indents.scm
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3
extensions/gleam/languages/gleam/indents.scm
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(_ "[" "]" @end) @indent
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(_ "{" "}" @end) @indent
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(_ "(" ")" @end) @indent
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31
extensions/gleam/languages/gleam/outline.scm
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extensions/gleam/languages/gleam/outline.scm
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(external_type
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(visibility_modifier)? @context
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"type" @context
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(type_name) @name) @item
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(type_definition
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(visibility_modifier)? @context
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(opacity_modifier)? @context
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"type" @context
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(type_name) @name) @item
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(data_constructor
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(constructor_name) @name) @item
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(data_constructor_argument
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(label) @name) @item
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(type_alias
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(visibility_modifier)? @context
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"type" @context
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(type_name) @name) @item
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(function
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(visibility_modifier)? @context
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"fn" @context
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name: (_) @name) @item
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(constant
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(visibility_modifier)? @context
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"const" @context
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name: (_) @name) @item
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11
extensions/gleam/src/bindings.rs
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11
extensions/gleam/src/bindings.rs
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// Generated by `wit-bindgen` 0.16.0. DO NOT EDIT!
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#[cfg(target_arch = "wasm32")]
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#[link_section = "component-type:zed_gleam"]
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#[doc(hidden)]
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pub static __WIT_BINDGEN_COMPONENT_TYPE: [u8; 169] = [3, 0, 9, 122, 101, 100, 95, 103, 108, 101, 97, 109, 0, 97, 115, 109, 13, 0, 1, 0, 7, 40, 1, 65, 2, 1, 65, 0, 4, 1, 29, 99, 111, 109, 112, 111, 110, 101, 110, 116, 58, 122, 101, 100, 95, 103, 108, 101, 97, 109, 47, 122, 101, 100, 95, 103, 108, 101, 97, 109, 4, 0, 11, 15, 1, 0, 9, 122, 101, 100, 95, 103, 108, 101, 97, 109, 3, 0, 0, 0, 16, 12, 112, 97, 99, 107, 97, 103, 101, 45, 100, 111, 99, 115, 0, 123, 125, 0, 70, 9, 112, 114, 111, 100, 117, 99, 101, 114, 115, 1, 12, 112, 114, 111, 99, 101, 115, 115, 101, 100, 45, 98, 121, 2, 13, 119, 105, 116, 45, 99, 111, 109, 112, 111, 110, 101, 110, 116, 6, 48, 46, 49, 56, 46, 50, 16, 119, 105, 116, 45, 98, 105, 110, 100, 103, 101, 110, 45, 114, 117, 115, 116, 6, 48, 46, 49, 54, 46, 48];
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#[inline(never)]
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#[doc(hidden)]
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#[cfg(target_arch = "wasm32")]
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pub fn __link_section() {}
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91
extensions/gleam/src/gleam.rs
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91
extensions/gleam/src/gleam.rs
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use zed_extension_api::{self as zed, Result};
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struct GleamExtension {
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cached_binary_path: Option<String>,
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}
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impl zed::Extension for GleamExtension {
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fn new() -> Self {
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Self {
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cached_binary_path: None,
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}
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}
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fn language_server_command(
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&mut self,
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config: zed::LanguageServerConfig,
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_worktree: &zed::Worktree,
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) -> Result<zed::Command> {
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let binary_path = if let Some(path) = &self.cached_binary_path {
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::Cached,
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);
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path.clone()
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} else {
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::CheckingForUpdate,
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);
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let release = zed::latest_github_release(
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"gleam-lang/gleam",
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zed::GithubReleaseOptions {
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require_assets: true,
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pre_release: false,
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},
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)?;
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let (platform, arch) = zed::current_platform();
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let asset_name = format!(
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"gleam-{version}-{arch}-{os}.tar.gz",
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version = release.version,
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arch = match arch {
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zed::Architecture::Aarch64 => "aarch64",
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zed::Architecture::X86 => "x86",
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zed::Architecture::X8664 => "x86_64",
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},
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os = match platform {
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zed::Os::Mac => "apple-darwin",
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zed::Os::Linux => "unknown-linux-musl",
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zed::Os::Windows => "pc-windows-msvc",
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},
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);
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let asset = release
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.assets
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.iter()
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.find(|asset| asset.name == asset_name)
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.ok_or_else(|| format!("no asset found matching {:?}", asset_name))?;
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::Downloading,
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);
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let version_dir = format!("gleam-{}", release.version);
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zed::download_file(
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&asset.download_url,
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&version_dir,
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zed::DownloadedFileType::GzipTar,
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)
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.map_err(|e| format!("failed to download file: {e}"))?;
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zed::set_language_server_installation_status(
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&config.name,
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&zed::LanguageServerInstallationStatus::Downloaded,
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);
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let binary_path = format!("{version_dir}/gleam");
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self.cached_binary_path = Some(binary_path.clone());
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binary_path
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};
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Ok(zed::Command {
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command: binary_path,
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args: vec!["lsp".to_string()],
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env: Default::default(),
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})
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}
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}
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zed::register_extension!(GleamExtension);
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