diff options
Diffstat (limited to 'lib/lace/builtin.lua')
| -rw-r--r-- | lib/lace/builtin.lua | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lib/lace/builtin.lua b/lib/lace/builtin.lua index 209916d..a45051f 100644 --- a/lib/lace/builtin.lua +++ b/lib/lace/builtin.lua @@ -13,6 +13,8 @@ local function compiler() return require "lace.compiler" end +--[ Allow and Deny ]------------------------------------------------ + local function _do_return(exec_context, result, reason, cond) if #cond > 0 then -- Run the conditions @@ -40,6 +42,35 @@ end builtin.allow = _return builtin.deny = _return +--[ Default for Allow and Deny ]------------------------------------ + +function builtin.default(compcontext, def, result, reason, unwanted) + assert(def == "default", "Somehow, builtin.default got something odd") + if type(result) ~= "string" then + return compiler().error("Expected result, got nothing") + end + if result ~= "allow" and result ~= "deny" then + return compiler().error("Result wasn't allow or deny", {2}) + end + if type(reason) ~= "string" then + reason = "Default behaviour" + end + if unwanted ~= nil then + return compiler().error("Unexpected additional content", {4}) + end + + if compcontext[".lace"].default then + return compiler().error("Cannot change the default") + end + + compcontext[".lace"].default = { result, reason } + + return { + fn = function() return true end, + args = {} + } +end + return { commands = builtin, } |