1 files changed, 52 insertions, 0 deletions
diff --git a/server-beta/src/core/setmethod.lua b/server-beta/src/core/setmethod.lua
new file mode 100644
index 00000000..4140c2d5
--- /dev/null
+++ b/server-beta/src/core/setmethod.lua
@@ -0,0 +1,52 @@
+local guide    = require 'parser.guide'
+local checkSMT = require 'core.setmetatable'
+
+local m = {}
+
+function m:field(source, key, callback)
+    local used = {}
+    local found = false
+    used[source] = true
+
+    local node = source.node
+    used[node] = true
+
+    local myKey = guide.getKeyName(source)
+    if key == myKey then
+        callback(source.method, 'set')
+    end
+
+    self:eachField(node, myKey, function (src, mode)
+        if used[src] then
+            return
+        end
+        used[src] = true
+        self:eachField(src, key, function (src, mode)
+            used[src] = true
+            if mode == 'set' then
+                callback(src, mode)
+                found = true
+            end
+        end)
+    end)
+
+    self:eachValue(node, function (src)
+        self:eachField(src, myKey, function (src, mode)
+            if used[src] then
+                return
+            end
+            used[src] = true
+            self:eachField(src, key, function (src, mode)
+                used[src] = true
+                if mode == 'set' then
+                    callback(src, mode)
+                    found = true
+                end
+            end)
+        end)
+    end)
+
+    checkSMT(self, key, used, found, callback)
+end
+
+return m