hover的第一步

1 files changed, 20 insertions, 0 deletions

diff --git a/server-beta/src/core/hover/arg.lua b/server-beta/src/core/hover/arg.lua
new file mode 100644
index 00000000..be344488
--- /dev/null
+++ b/server-beta/src/core/hover/arg.lua
@@ -0,0 +1,20 @@
+local guide = require 'parser.guide'
+local vm    = require 'vm'
+
+local function asFunction(source)
+    if not source.args then
+        return ''
+    end
+    local args = {}
+    for i = 1, #source.args do
+        local arg = source.args[i]
+        args[i] = ('%s: %s'):format(guide.getName(arg), vm.getType(arg))
+    end
+    return table.concat(args, ', ')
+end
+
+return function (source)
+    if source.type == 'function' then
+        return asFunction(source)
+    end
+end