fey.naomi/fennel-ls
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let me hide keys using mt.__json_exclude_keys

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This commit is contained in:
XeroOl 2024-03-26 13:00:57 -05:00
parent c79c80cb41
commit ca2dbf9237
1 changed files with 13 additions and 4 deletions
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17
src/fennel-ls/json/json.lua
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@ -22,11 +22,16 @@
-- SOFTWARE.
--
-- Modifications have been made to this file. The ORIGINAL code can be found at
-- this URL: https://github.com/rxi/json.lua
local json = { _version = "0.1.2" }
-- unique placeholder for "null"
json.null = { _ = "nil" }
local view = require("fennel").view
-------------------------------------------------------------------------------
-- Encode
-------------------------------------------------------------------------------
@ -73,7 +78,7 @@ local function encode_table(val, stack)
local n = 0
for k in pairs(val) do
if type(k) ~= "number" then
error("invalid table: mixed or invalid key types")
error("invalid table: mixed or invalid key types in " .. view(val))
end
n = n + 1
end
@ -89,11 +94,15 @@ local function encode_table(val, stack)
else
-- Treat as an object
local mt = getmetatable(val)
local exclude = mt and mt.__json_exclude_keys
for k, v in pairs(val) do
if type(k) ~= "string" then
error("invalid table: mixed or invalid key types")
if not (exclude and exclude[k]) then
if type(k) ~= "string" then
error("invalid table: mixed or invalid key types in " .. view(val))
end
table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
end
table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
end
stack[val] = nil
return "{" .. table.concat(res, ",") .. "}"