hover定义

3 files changed, 28 insertions, 0 deletions

diff --git a/server/src/method/init.lua b/server/src/method/init.lua
index 7a465f98..c01152a7 100644
--- a/server/src/method/init.lua
+++ b/server/src/method/init.lua
@@ -12,6 +12,7 @@ init 'textDocument/definition'
 init 'textDocument/didOpen'
 init 'textDocument/didChange'
 init 'textDocument/didClose'
+init 'textDocument/hover'
 init 'textDocument/implementation'
 init 'textDocument/rename'
 init 'textDocument/references'
diff --git a/server/src/method/initialize.lua b/server/src/method/initialize.lua
index ac125ae8..161959d4 100644
--- a/server/src/method/initialize.lua
+++ b/server/src/method/initialize.lua
@@ -2,6 +2,8 @@ return function (lsp, data)
     lsp._inited = true
     return {
         capabilities = {
+            -- 支持“悬浮”
+            hoverProvider = true,
             -- 支持“转到定义”
             definitionProvider = true,
             -- 支持“转到实现”
diff --git a/server/src/method/textDocument/hover.lua b/server/src/method/textDocument/hover.lua
new file mode 100644
index 00000000..2fd7aaec
--- /dev/null
+++ b/server/src/method/textDocument/hover.lua
@@ -0,0 +1,25 @@
+local parser = require 'parser'
+local matcher = require 'matcher'
+
+return function (lsp, params)
+    local uri = params.textDocument.uri
+    local results, lines = lsp:loadText(uri)
+    if not results then
+        return nil
+    end
+    -- lua是从1开始的，因此都要+1
+    local position = lines:position(params.position.line + 1, params.position.character + 1, 'utf8')
+    local text, kind = matcher.hover(results, position)
+    if not text then
+        return nil
+    end
+
+    local response = {
+        contents = {
+            value = text,
+            kind  = kind,
+        }
+    }
+
+    return response
+end