1 files changed, 14 insertions, 0 deletions
diff --git a/script/core/find-source.lua b/script/core/find-source.lua
new file mode 100644
index 00000000..32de102c
--- /dev/null
+++ b/script/core/find-source.lua
@@ -0,0 +1,14 @@
+local guide     = require 'parser.guide'
+
+return function (ast, offset, accept)
+    local len = math.huge
+    local result
+    guide.eachSourceContain(ast.ast, offset, function (source)
+        local start, finish = guide.getStartFinish(source)
+        if finish - start < len and accept[source.type] then
+            result = source
+            len = finish - start
+        end
+    end)
+    return result
+end