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-rw-r--r--nomsu.lua19
1 files changed, 16 insertions, 3 deletions
diff --git a/nomsu.lua b/nomsu.lua
index 69e17ca..0dd9d5f 100644
--- a/nomsu.lua
+++ b/nomsu.lua
@@ -332,7 +332,17 @@ do
end
return tree
end,
- run = function(self, src, filename)
+ run = function(self, src, filename, max_operations)
+ if max_operations == nil then
+ max_operations = nil
+ end
+ if max_operations then
+ local timeout
+ timeout = function()
+ return self:error("Execution quota exceeded. Your code took too long.")
+ end
+ debug.sethook(timeout, "", max_operations)
+ end
local tree = self:parse(src, filename)
assert(tree, "Tree failed to compile: " .. tostring(src))
assert(tree.type == "File", "Attempt to run non-file: " .. tostring(tree.type))
@@ -388,6 +398,9 @@ do
%s
return ret;
end);]]):format(concat(buffer, "\n"))
+ if max_operations then
+ debug.sethook()
+ end
return return_value, lua_code
end,
tree_to_value = function(self, tree, vars)
@@ -896,7 +909,7 @@ if arg then
end
end
if not args.input or args.flags["-i"] then
- c:run('require "lib/core.nom"')
+ c:run('require "lib/core.nom"', "stdin")
while true do
local buff = ""
while true do
@@ -911,7 +924,7 @@ if arg then
break
end
local ok, ret = pcall(function()
- return c:run(buff)
+ return c:run(buff, "stdin")
end)
if ok and ret ~= nil then
print("= " .. repr(ret))