.gitignore

@@ -23,6 +23,6 @@ luajit/.git
 go.work
 
 # Test directories and files
-/*.lua
+test.lua
 test_fs_dir
 public

modules/http/http.go

@@ -4,9 +4,7 @@ import (
 	"context"
 	"fmt"
 	"net"
-	"path/filepath"
 	"runtime"
-	"strings"
 	"sync"
 	"time"
 
@@ -20,8 +18,6 @@ var (
 	globalStateCreator StateCreator
 	globalMu           sync.RWMutex
 	serverRunning      bool
-	staticHandlers     = make(map[string]*fasthttp.FS)
-	staticMu           sync.RWMutex
 )
 
 func SetStateCreator(creator StateCreator) {
@@ -35,7 +31,6 @@ func GetFunctionList() map[string]luajit.GoFunction {
 		"http_listen":        http_listen,
 		"http_close_server":  http_close_server,
 		"http_has_servers":   http_has_servers,
-		"http_register_static": http_register_static,
 	}
 }
 
@@ -167,32 +162,6 @@ func http_has_servers(s *luajit.State) int {
 	return 1
 }
 
-func http_register_static(s *luajit.State) int {
-	if err := s.CheckMinArgs(2); err != nil {
-		return s.PushError("http_register_static: %v", err)
-	}
-
-	urlPrefix := s.ToString(1)
-	rootPath := s.ToString(2)
-
-	// Ensure prefix starts with /
-	if !strings.HasPrefix(urlPrefix, "/") {
-		urlPrefix = "/" + urlPrefix
-	}
-
-	// Convert to absolute path
-	absPath, err := filepath.Abs(rootPath)
-	if err != nil {
-		s.PushBoolean(false)
-		s.PushString(fmt.Sprintf("invalid path: %v", err))
-		return 2
-	}
-
-	RegisterStaticHandler(urlPrefix, absPath)
-	s.PushBoolean(true)
-	return 1
-}
-
 func HasActiveServers() bool {
 	globalMu.RLock()
 	defer globalMu.RUnlock()
@@ -206,22 +175,6 @@ func WaitForServers() {
 }
 
 func handleRequest(ctx *fasthttp.RequestCtx) {
-	path := string(ctx.Path())
-
-	// Check static handlers first
-	staticMu.RLock()
-	for prefix, fs := range staticHandlers {
-		if strings.HasPrefix(path, prefix) {
-			staticMu.RUnlock()
-			// Remove prefix and serve
-			ctx.Request.URI().SetPath(strings.TrimPrefix(path, prefix))
-			fs.NewRequestHandler()(ctx)
-			return
-		}
-	}
-	staticMu.RUnlock()
-
-	// Fall back to Lua handling
 	globalMu.RLock()
 	pool := globalWorkerPool
 	globalMu.RUnlock()
@@ -277,19 +230,3 @@ func handleRequest(ctx *fasthttp.RequestCtx) {
 		ctx.SetBodyString(resp.Body)
 	}
 }
-
-// RegisterStaticHandler adds a static file handler
-func RegisterStaticHandler(urlPrefix, rootPath string) {
-	staticMu.Lock()
-	defer staticMu.Unlock()
-
-	fs := &fasthttp.FS{
-		Root:               rootPath,
-		IndexNames:         []string{"index.html"},
-		GenerateIndexPages: false,
-		Compress:           true,
-		AcceptByteRange:    true,
-	}
-
-	staticHandlers[urlPrefix] = fs
-}

modules/http/http.lua

@@ -523,18 +523,48 @@ function http.cors(options)
 	end
 end
 
-function http.static(root_path, url_prefix)
+function http.static(root_path)
-	url_prefix = url_prefix or "/"
-	
-	if not _G.__IS_WORKER then
-		local success, err = moonshark.http_register_static(url_prefix, root_path)
-		if not success then
-			error("Failed to register static handler: " .. (err or "unknown error"))
-		end
-	end
-	
-	-- Return no-op middleware
 	return function(req, res, next)
+		if req.method ~= "GET" and req.method ~= "HEAD" then
+			next()
+			return
+		end
+		
+		local file_path = moonshark.path_join(root_path, req.path)
+		file_path = moonshark.path_clean(file_path)
+		
+		local abs_root = moonshark.path_abs(root_path)
+		local abs_file = moonshark.path_abs(file_path)
+		
+		if not abs_file or not abs_file:find("^" .. abs_root:gsub("([%(%)%.%+%-%*%?%[%]%^%$%%])", "%%%1")) then
+			next()
+			return
+		end
+		
+		if moonshark.file_exists(file_path) and not moonshark.file_is_dir(file_path) then
+			local content = moonshark.file_read(file_path)
+			if content then
+				local ext = moonshark.path_ext(file_path):lower()
+				local content_types = {
+					[".html"] = "text/html",
+					[".css"] = "text/css",
+					[".js"] = "application/javascript",
+					[".json"] = "application/json",
+					[".png"] = "image/png",
+					[".jpg"] = "image/jpeg",
+					[".jpeg"] = "image/jpeg",
+					[".gif"] = "image/gif",
+					[".svg"] = "image/svg+xml",
+					[".webp"] = "image/webp",
+					[".txt"] = "text/plain",
+				}
+				
+				local content_type = content_types[ext] or "application/octet-stream"
+				res:type(content_type):send(content)
+				return
+			end
+		end
+		
 		next()
 	end
 end

modules/json/json.go

@@ -0,0 +1,45 @@
+package json
+
+import (
+	luajit "git.sharkk.net/Sky/LuaJIT-to-Go"
+	"github.com/goccy/go-json"
+)
+
+func GetFunctionList() map[string]luajit.GoFunction {
+	return map[string]luajit.GoFunction{
+		"json_encode": json_encode,
+		"json_decode": json_decode,
+	}
+}
+
+func json_encode(s *luajit.State) int {
+	value, err := s.ToValue(1)
+	if err != nil {
+		s.PushNil()
+		s.PushString("failed to read value")
+		return 2
+	}
+
+	data, err := json.Marshal(value)
+	if err != nil {
+		s.PushNil()
+		s.PushString("encoding failed")
+		return 2
+	}
+
+	s.PushString(string(data))
+	return 1
+}
+
+func json_decode(s *luajit.State) int {
+	jsonStr := s.ToString(1)
+	var result any
+	if err := json.Unmarshal([]byte(jsonStr), &result); err != nil {
+		s.PushNil()
+		s.PushString("invalid JSON")
+		return 2
+	}
+
+	s.PushValue(result)
+	return 1
+}

modules/json/json.lua

@@ -1,355 +1,72 @@
--- modules/json.lua - High-performance JSON module
+-- modules/json.lua - High-performance JSON module using Go functions
 
 local json = {}
 
+-- Use the fast Go JSON encoder/decoder
 function json.encode(value)
-	local buffer = {}
+	return moonshark.json_encode(value)
-	local pos = 1
-
-	local function encode_string(s)
-		buffer[pos] = '"'
-		pos = pos + 1
-
-		local start = 1
-		for i = 1, #s do
-			local c = s:byte(i)
-			if c == 34 then -- "
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				buffer[pos] = '\\"'
-				pos = pos + 1
-				start = i + 1
-			elseif c == 92 then -- \
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				buffer[pos] = '\\\\'
-				pos = pos + 1
-				start = i + 1
-			elseif c < 32 then
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				if c == 8 then
-					buffer[pos] = '\\b'
-				elseif c == 9 then
-					buffer[pos] = '\\t'
-				elseif c == 10 then
-					buffer[pos] = '\\n'
-				elseif c == 12 then
-					buffer[pos] = '\\f'
-				elseif c == 13 then
-					buffer[pos] = '\\r'
-				else
-					buffer[pos] = ('\\u%04x'):format(c)
-				end
-				pos = pos + 1
-				start = i + 1
-			end
-		end
-
-		if start <= #s then
-			buffer[pos] = s:sub(start)
-			pos = pos + 1
-		end
-
-		buffer[pos] = '"'
-		pos = pos + 1
-	end
-
-	local function encode_value(v, depth)
-		local t = type(v)
-
-		if t == 'string' then
-			encode_string(v)
-		elseif t == 'number' then
-			if v ~= v then -- NaN
-				buffer[pos] = 'null'
-			elseif v == 1/0 or v == -1/0 then -- Infinity
-				buffer[pos] = 'null'
-			else
-				buffer[pos] = tostring(v)
-			end
-			pos = pos + 1
-		elseif t == 'boolean' then
-			buffer[pos] = v and 'true' or 'false'
-			pos = pos + 1
-		elseif t == 'table' then
-			if depth > 100 then error('circular reference') end
-
-			local is_array = true
-			local max_index = 0
-			local count = 0
-
-			for k, _ in pairs(v) do
-				count = count + 1
-				if type(k) ~= 'number' or k <= 0 or k % 1 ~= 0 then
-					is_array = false
-					break
-				end
-				if k > max_index then max_index = k end
-			end
-
-			if is_array and count == max_index then
-				buffer[pos] = '['
-				pos = pos + 1
-
-				for i = 1, max_index do
-					if i > 1 then
-						buffer[pos] = ','
-						pos = pos + 1
-					end
-					encode_value(v[i], depth + 1)
-				end
-
-				buffer[pos] = ']'
-				pos = pos + 1
-			else
-				buffer[pos] = '{'
-				pos = pos + 1
-
-				local first = true
-				for k, val in pairs(v) do
-					if not first then
-						buffer[pos] = ','
-						pos = pos + 1
-					end
-					first = false
-
-					encode_string(tostring(k))
-					buffer[pos] = ':'
-					pos = pos + 1
-					encode_value(val, depth + 1)
-				end
-
-				buffer[pos] = '}'
-				pos = pos + 1
-			end
-		else
-			buffer[pos] = 'null'
-			pos = pos + 1
-		end
-	end
-
-	encode_value(value, 0)
-	return table.concat(buffer)
 end
 
 function json.decode(str)
-	local pos = 1
+	local result, err = moonshark.json_decode(str)
-	local len = #str
+	if result == nil and err then
-
+		error("json_decode: " .. err)
-	local function skip_whitespace()
-		while pos <= len do
-			local c = str:byte(pos)
-			if c ~= 32 and c ~= 9 and c ~= 10 and c ~= 13 then break end
-			pos = pos + 1
 	end
-	end
-
-	local function decode_string()
-		local start = pos + 1
-		pos = pos + 1
-
-		while pos <= len do
-			local c = str:byte(pos)
-			if c == 34 then -- "
-				local result = str:sub(start, pos - 1)
-				pos = pos + 1
-
-				if result:find('\\') then
-					result = result:gsub('\\(.)', {
-						['"'] = '"',
-						['\\'] = '\\',
-						['/'] = '/',
-						['b'] = '\b',
-						['f'] = '\f',
-						['n'] = '\n',
-						['r'] = '\r',
-						['t'] = '\t'
-					})
-					result = result:gsub('\\u(%x%x%x%x)', function(hex)
-						return string.char(tonumber(hex, 16))
-					end)
-				end
-
-				return result
-			elseif c == 92 then -- \
-				pos = pos + 2
-			else
-				pos = pos + 1
-			end
-		end
-
-		error('unterminated string')
-	end
-
-	local function decode_number()
-		local start = pos
-		local c = str:byte(pos)
-
-		if c == 45 then pos = pos + 1 end -- -
-
-		c = str:byte(pos)
-		if not c or c < 48 or c > 57 then error('invalid number') end
-
-		if c == 48 then
-			pos = pos + 1
-		else
-			while pos <= len do
-				c = str:byte(pos)
-				if c < 48 or c > 57 then break end
-				pos = pos + 1
-			end
-		end
-
-		if pos <= len and str:byte(pos) == 46 then -- .
-			pos = pos + 1
-			local found_digit = false
-			while pos <= len do
-				c = str:byte(pos)
-				if c < 48 or c > 57 then break end
-				found_digit = true
-				pos = pos + 1
-			end
-			if not found_digit then error('invalid number') end
-		end
-
-		if pos <= len then
-			c = str:byte(pos)
-			if c == 101 or c == 69 then -- e or E
-				pos = pos + 1
-				if pos <= len then
-					c = str:byte(pos)
-					if c == 43 or c == 45 then pos = pos + 1 end -- + or -
-				end
-				local found_digit = false
-				while pos <= len do
-					c = str:byte(pos)
-					if c < 48 or c > 57 then break end
-					found_digit = true
-					pos = pos + 1
-				end
-				if not found_digit then error('invalid number') end
-			end
-		end
-
-		return tonumber(str:sub(start, pos - 1))
-	end
-
-	local function decode_value()
-		skip_whitespace()
-		if pos > len then error('unexpected end') end
-
-		local c = str:byte(pos)
-
-		if c == 34 then -- "
-			return decode_string()
-		elseif c == 123 then -- {
-			local result = {}
-			pos = pos + 1
-			skip_whitespace()
-
-			if pos <= len and str:byte(pos) == 125 then -- }
-				pos = pos + 1
-				return result
-			end
-
-			while true do
-				skip_whitespace()
-				if pos > len or str:byte(pos) ~= 34 then error('expected string key') end
-
-				local key = decode_string()
-				skip_whitespace()
-
-				if pos > len or str:byte(pos) ~= 58 then error('expected :') end
-				pos = pos + 1
-
-				result[key] = decode_value()
-				skip_whitespace()
-
-				if pos > len then error('unexpected end') end
-				c = str:byte(pos)
-
-				if c == 125 then -- }
-					pos = pos + 1
-					return result
-				elseif c == 44 then -- ,
-					pos = pos + 1
-				else
-					error('expected , or }')
-				end
-			end
-
-		elseif c == 91 then -- [
-			local result = {}
-			local index = 1
-			pos = pos + 1
-			skip_whitespace()
-
-			if pos <= len and str:byte(pos) == 93 then -- ]
-				pos = pos + 1
-				return result
-			end
-
-			while true do
-				result[index] = decode_value()
-				index = index + 1
-				skip_whitespace()
-
-				if pos > len then error('unexpected end') end
-				c = str:byte(pos)
-
-				if c == 93 then -- ]
-					pos = pos + 1
-					return result
-				elseif c == 44 then -- ,
-					pos = pos + 1
-				else
-					error('expected , or ]')
-				end
-			end
-
-		elseif c == 116 then -- true
-			if str:sub(pos, pos + 3) == 'true' then
-				pos = pos + 4
-				return true
-			end
-			error('invalid literal')
-
-		elseif c == 102 then -- false
-			if str:sub(pos, pos + 4) == 'false' then
-				pos = pos + 5
-				return false
-			end
-			error('invalid literal')
-
-		elseif c == 110 then -- null
-			if str:sub(pos, pos + 3) == 'null' then
-				pos = pos + 4
-				return nil
-			end
-			error('invalid literal')
-
-		elseif (c >= 48 and c <= 57) or c == 45 then -- 0-9 or -
-			return decode_number()
-
-		else
-			error('unexpected character')
-		end
-	end
-
-	local result = decode_value()
-	skip_whitespace()
-	if pos <= len then error('unexpected content after JSON') end
 	return result
 end
 
+-- Pretty print JSON with indentation
+function json.pretty(value, indent)
+	indent = indent or 2
+	local encoded = json.encode(value)
+	local result = {}
+	local depth = 0
+	local in_string = false
+	local escape_next = false
+	
+	for i = 1, #encoded do
+		local char = encoded:sub(i, i)
+		
+		if escape_next then
+			table.insert(result, char)
+			escape_next = false
+		elseif char == "\\" and in_string then
+			table.insert(result, char)
+			escape_next = true
+		elseif char == '"' then
+			table.insert(result, char)
+			in_string = not in_string
+		elseif not in_string then
+			if char == "{" or char == "[" then
+				table.insert(result, char)
+				depth = depth + 1
+				table.insert(result, "\n" .. string.rep(" ", depth * indent))
+			elseif char == "}" or char == "]" then
+				depth = depth - 1
+				table.insert(result, "\n" .. string.rep(" ", depth * indent))
+				table.insert(result, char)
+			elseif char == "," then
+				table.insert(result, char)
+				table.insert(result, "\n" .. string.rep(" ", depth * indent))
+			elseif char == ":" then
+				table.insert(result, char .. " ")
+			else
+				table.insert(result, char)
+			end
+		else
+			table.insert(result, char)
+		end
+	end
+	
+	return table.concat(result)
+end
+
+-- Load JSON from file
 function json.load_file(filename)
+	if not moonshark.file_exists(filename) then
+		error("File not found: " .. filename)
+	end
+	
 	local file = io.open(filename, "r")
 	if not file then
 		error("Cannot open file: " .. filename)
@@ -361,20 +78,28 @@ function json.load_file(filename)
 	return json.decode(content)
 end
 
-function json.save_file(filename, data)
+-- Save data to JSON file
+function json.save_file(filename, data, pretty)
+	local content
+	if pretty then
+		content = json.pretty(data)
+	else
+		content = json.encode(data)
+	end
+	
 	local file = io.open(filename, "w")
 	if not file then
 		error("Cannot write to file: " .. filename)
 	end
 	
-	file:write(json.encode(data))
+	file:write(content)
 	file:close()
 end
 
+-- Merge JSON objects
 function json.merge(...)
 	local result = {}
-	local n = select("#", ...)
+	for i = 1, select("#", ...) do
-	for i = 1, n do
 		local obj = select(i, ...)
 		if type(obj) == "table" then
 			for k, v in pairs(obj) do
@@ -385,22 +110,20 @@ function json.merge(...)
 	return result
 end
 
+-- Extract values by JSONPath-like syntax (simplified)
 function json.extract(data, path)
+	local parts = moonshark.string_split(path, ".")
 	local current = data
-	local start = 1
-	local len = #path
-
-	while start <= len do
-		local dot_pos = path:find(".", start, true)
-		local part = dot_pos and path:sub(start, dot_pos - 1) or path:sub(start)
 	
+	for _, part in ipairs(parts) do
 		if type(current) ~= "table" then
 			return nil
 		end
 		
-		local bracket_start, bracket_end = part:find("^%[(%d+)%]$")
+		-- Handle array indices [0], [1], etc.
-		if bracket_start then
+		local array_match = part:match("^%[(%d+)%]$")
-			local index = tonumber(part:sub(2, -2)) + 1
+		if array_match then
+			local index = tonumber(array_match) + 1 -- Lua is 1-indexed
 			current = current[index]
 		else
 			current = current[part]
@@ -409,163 +132,12 @@ function json.extract(data, path)
 		if current == nil then
 			return nil
 		end
-
-		start = dot_pos and dot_pos + 1 or len + 1
 	end
 	
 	return current
 end
 
-function json.pretty(value, indent)
+-- Validate JSON structure against schema (basic)
-	local buffer = {}
-	local pos = 1
-	indent = indent or "  "
-
-	local function encode_string(s)
-		buffer[pos] = '"'
-		pos = pos + 1
-
-		local start = 1
-		for i = 1, #s do
-			local c = s:byte(i)
-			if c == 34 then -- "
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				buffer[pos] = '\\"'
-				pos = pos + 1
-				start = i + 1
-			elseif c == 92 then -- \
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				buffer[pos] = '\\\\'
-				pos = pos + 1
-				start = i + 1
-			elseif c < 32 then
-				if i > start then
-					buffer[pos] = s:sub(start, i - 1)
-					pos = pos + 1
-				end
-				if c == 8 then
-					buffer[pos] = '\\b'
-				elseif c == 9 then
-					buffer[pos] = '\\t'
-				elseif c == 10 then
-					buffer[pos] = '\\n'
-				elseif c == 12 then
-					buffer[pos] = '\\f'
-				elseif c == 13 then
-					buffer[pos] = '\\r'
-				else
-					buffer[pos] = ('\\u%04x'):format(c)
-				end
-				pos = pos + 1
-				start = i + 1
-			end
-		end
-
-		if start <= #s then
-			buffer[pos] = s:sub(start)
-			pos = pos + 1
-		end
-
-		buffer[pos] = '"'
-		pos = pos + 1
-	end
-
-	local function encode_value(v, depth)
-		local t = type(v)
-		local current_indent = string.rep(indent, depth)
-		local next_indent = string.rep(indent, depth + 1)
-
-		if t == 'string' then
-			encode_string(v)
-		elseif t == 'number' then
-			if v ~= v then -- NaN
-				buffer[pos] = 'null'
-			elseif v == 1/0 or v == -1/0 then -- Infinity
-				buffer[pos] = 'null'
-			else
-				buffer[pos] = tostring(v)
-			end
-			pos = pos + 1
-		elseif t == 'boolean' then
-			buffer[pos] = v and 'true' or 'false'
-			pos = pos + 1
-		elseif t == 'table' then
-			if depth > 100 then error('circular reference') end
-
-			local is_array = true
-			local max_index = 0
-			local count = 0
-
-			for k, _ in pairs(v) do
-				count = count + 1
-				if type(k) ~= 'number' or k <= 0 or k % 1 ~= 0 then
-					is_array = false
-					break
-				end
-				if k > max_index then max_index = k end
-			end
-
-			if is_array and count == max_index then
-				buffer[pos] = '[\n'
-				pos = pos + 1
-
-				for i = 1, max_index do
-					buffer[pos] = next_indent
-					pos = pos + 1
-					encode_value(v[i], depth + 1)
-					if i < max_index then
-						buffer[pos] = ','
-						pos = pos + 1
-					end
-					buffer[pos] = '\n'
-					pos = pos + 1
-				end
-
-				buffer[pos] = current_indent .. ']'
-				pos = pos + 1
-			else
-				buffer[pos] = '{\n'
-				pos = pos + 1
-
-				local keys = {}
-				for k in pairs(v) do
-					keys[#keys + 1] = k
-				end
-
-				for i, k in ipairs(keys) do
-					buffer[pos] = next_indent
-					pos = pos + 1
-					encode_string(tostring(k))
-					buffer[pos] = ': '
-					pos = pos + 1
-					encode_value(v[k], depth + 1)
-					if i < #keys then
-						buffer[pos] = ','
-						pos = pos + 1
-					end
-					buffer[pos] = '\n'
-					pos = pos + 1
-				end
-
-				buffer[pos] = current_indent .. '}'
-				pos = pos + 1
-			end
-		else
-			buffer[pos] = 'null'
-			pos = pos + 1
-		end
-	end
-
-	encode_value(value, 0)
-	return table.concat(buffer)
-end
-
 function json.validate(data, schema)
 	local function validate_value(value, schema_value)
 		local value_type = type(value)
@@ -576,16 +148,13 @@ function json.validate(data, schema)
 		end
 		
 		if schema_type == "table" and schema_value.properties then
-			local required = schema_value.required
 			for prop, prop_schema in pairs(schema_value.properties) do
-				local prop_value = value[prop]
+				if schema_value.required and schema_value.required[prop] and value[prop] == nil then
-
-				if required and required[prop] and prop_value == nil then
 					return false, "Missing required property: " .. prop
 				end
 				
-				if prop_value ~= nil then
+				if value[prop] ~= nil then
-					local valid, err = validate_value(prop_value, prop_schema)
+					local valid, err = validate_value(value[prop], prop_schema)
 					if not valid then
 						return false, "Property " .. prop .. ": " .. err
 					end

modules/registry.go

@@ -8,6 +8,7 @@ import (
 	"Moonshark/modules/crypto"
 	"Moonshark/modules/fs"
 	"Moonshark/modules/http"
+	"Moonshark/modules/json"
 	"Moonshark/modules/math"
 	lua_string "Moonshark/modules/string"
 
@@ -34,6 +35,7 @@ func New() *Registry {
 	}
 
 	// Load all Go functions
+	maps.Copy(r.goFuncs, json.GetFunctionList())
 	maps.Copy(r.goFuncs, lua_string.GetFunctionList())
 	maps.Copy(r.goFuncs, math.GetFunctionList())
 	maps.Copy(r.goFuncs, fs.GetFunctionList())

tests/tests.lua

@@ -13,16 +13,9 @@ function assert(condition, message, level)
 	
 	level = level or 2
 	local info = debug.getinfo(level, "Sl")
-	local file = info.source
+	local file = info.source:match("@?(.+)") or "unknown"
-	
-	-- Extract filename from source or use generic name
-	if file:sub(1,1) == "@" then
-		file = file:sub(2)  -- Remove @ prefix for files
-	else
-		file = "<script>"   -- Generic name for inline scripts
-	end
-	
 	local line = info.currentline or "unknown"
+	
 	local error_msg = message or "assertion failed"
 	local full_msg = string.format("%s:%s: %s", file, line, error_msg)