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Parse client capabilities for snippet support

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This commit is contained in:
Alexandros Naskos 2020-06-01 13:29:06 +03:00
parent 269c308ec7
commit 52fe21b8bd
1 changed files with 21 additions and 3 deletions
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24
src/main.zig
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@ -18,6 +18,12 @@ var allocator: *std.mem.Allocator = undefined;
var document_store: DocumentStore = undefined;
var workspace_folder_configs: std.StringHashMap(?Config) = undefined;
const ClientCapabilities = struct {
supports_snippets: bool = false,
};
var client_capabilities = ClientCapabilities{};
const initialize_response =
\\,"result":{"capabilities":{"signatureHelpProvider":{"triggerCharacters":["(",","]},"textDocumentSync":1,"completionProvider":{"resolveProvider":false,"triggerCharacters":[".",":","@"]},"documentHighlightProvider":false,"hoverProvider":true,"codeActionProvider":false,"declarationProvider":true,"definitionProvider":true,"typeDefinitionProvider":true,"implementationProvider":false,"referencesProvider":false,"documentSymbolProvider":true,"colorProvider":false,"documentFormattingProvider":false,"documentRangeFormattingProvider":false,"foldingRangeProvider":false,"selectionRangeProvider":false,"workspaceSymbolProvider":false,"workspace":{"workspaceFolders":{"supported":true,"changeNotifications":true}}}}}
;
@ -240,7 +246,8 @@ fn nodeToCompletion(
.FnProto => {
const func = node.cast(std.zig.ast.Node.FnProto).?;
if (func.name_token) |name_token| {
const insert_text = if (config.enable_snippets)
const use_snippets = config.enable_snippets and client_capabilities.supports_snippets;
const insert_text = if (use_snippets)
try analysis.getFunctionSnippet(list.allocator, analysis_ctx.tree(), func)
else
null;
@ -253,7 +260,7 @@ fn nodeToCompletion(
.documentation = doc,
.detail = analysis.getFunctionSignature(analysis_ctx.tree(), func),
.insertText = insert_text,
.insertTextFormat = if (config.enable_snippets) .Snippet else .PlainText,
.insertTextFormat = if (use_snippets) .Snippet else .PlainText,
});
}
},
@ -659,6 +666,16 @@ fn processJsonRpc(parser: *std.json.Parser, json: []const u8, config: Config) !v
// Core
if (std.mem.eql(u8, method, "initialize")) {
const client_capabs = params.getValue("capabilities").?.Object;
if (client_capabs.getValue("textDocument")) |text_doc_capabs| {
if (text_doc_capabs.Object.getValue("completion")) |completion_capabs| {
if (completion_capabs.Object.getValue("completionItem")) |item_capabs| {
const maybe_support_snippet = item_capabs.Object.getValue("snippetSupport");
client_capabilities.supports_snippets = maybe_support_snippet != null and maybe_support_snippet.?.Bool;
}
}
}
try respondGeneric(id, initialize_response);
} else if (std.mem.eql(u8, method, "initialized")) {
// Send the workspaceFolders request
@ -747,13 +764,14 @@ fn processJsonRpc(parser: *std.json.Parser, json: []const u8, config: Config) !v
const pos_context = try analysis.documentPositionContext(allocator, handle.document, pos);
const this_config = configFromUriOr(uri, config);
const use_snippets = this_config.enable_snippets and client_capabilities.supports_snippets;
switch (pos_context) {
.builtin => try send(types.Response{
.id = .{ .Integer = id },
.result = .{
.CompletionList = .{
.isIncomplete = false,
.items = builtin_completions[@boolToInt(this_config.enable_snippets)][0..],
.items = builtin_completions[@boolToInt(use_snippets)][0..],
},
},
}),