improve json to support array

2 files changed, 17 insertions, 1 deletions

diff --git a/xmake/core/base/json.lua b/xmake/core/base/json.lua
index 0b38df42a..e83f6b320 100644
--- a/xmake/core/base/json.lua
+++ b/xmake/core/base/json.lua
@@ -29,6 +29,20 @@ local utils = require("base/utils")
 -- export null
 json.null = cjson.null
 
+-- support empty array
+-- @see https://github.com/mpx/lua-cjson/issues/11
+function json.mark_as_array(luatable)
+    local mt = getmetatable(luatable) or {}
+    mt.__is_cjson_array = true
+    return setmetatable(luatable, mt)
+end
+
+-- is marked as array?
+function json.is_marked_as_array(luatable)
+    local mt = getmetatable(luatable)
+    return mt and mt.__is_cjson_array
+end
+
 -- decode json string to the lua table
 --
 -- @param jsonstr       the json string
diff --git a/xmake/core/sandbox/modules/import/core/base/json.lua b/xmake/core/sandbox/modules/import/core/base/json.lua
index 04073ca0d..ed551993d 100644
--- a/xmake/core/sandbox/modules/import/core/base/json.lua
+++ b/xmake/core/sandbox/modules/import/core/base/json.lua
@@ -26,7 +26,9 @@ local json      = require("base/json")
 local raise     = require("sandbox/modules/raise")
 
 -- inherit some builtin interfaces
-sandbox_core_base_json.null = json.null
+sandbox_core_base_json.null               = json.null
+sandbox_core_base_json.mark_as_array      = json.mark_as_array
+sandbox_core_base_json.is_marked_as_array = json.is_marked_as_array
 
 -- decode the json string to the lua table
 function sandbox_core_base_json.decode(jsonstr, opt)