Refactor limits emit and memory growing

runtime/luajit.lua

@@ -327,7 +327,7 @@ do
 
 		memory.min = min
 		memory.max = max
-		memory.data = ffi.new(vla_u8, min * WASM_PAGE_SIZE)
+		memory.data = vla_u8(min * WASM_PAGE_SIZE, 0)
 
 		return memory
 	end
@@ -340,7 +340,7 @@ do
 		local old = memory.min
 		local new = old + num
 
-		if memory.max and new > memory.max then
+		if new > memory.max then
 			return -1
 		else
 			grow_unchecked(memory, old, new)

runtime/luau.lua

@@ -273,7 +273,7 @@ do
 		local old = memory.min
 		local new = old + num
 
-		if memory.max and new > memory.max then
+		if new > memory.max then
 			return -1
 		else
 			memory.min = new

src/backend/translator/data.rs

@@ -21,26 +21,25 @@ fn aux_internal_index(internal: Internal) -> u32 {
 	}
 }
 
-fn gen_table_init(limit: &ResizableLimits, w: &mut dyn Write) -> Result<()> {
-	write!(w, "{{ min = {}", limit.initial())?;
-
-	if let Some(max) = limit.maximum() {
-		write!(w, ", max = {}", max)?;
+fn new_limit_max(limits: &ResizableLimits) -> String {
+	match limits.maximum() {
+		Some(v) => v.to_string(),
+		None => "math.huge".to_string(),
 	}
+}
 
-	write!(w, ", data = {{}} }}")
+fn gen_table_init(limit: &ResizableLimits, w: &mut dyn Write) -> Result<()> {
+	let a = limit.initial();
+	let b = new_limit_max(limit);
+
+	write!(w, "{{ min = {}, max = {}, data = {{}} }}", a, b)
 }
 
 fn gen_memory_init(limit: &ResizableLimits, w: &mut dyn Write) -> Result<()> {
-	write!(w, "rt.memory.new({}, ", limit.initial())?;
+	let a = limit.initial();
+	let b = new_limit_max(limit);
 
-	if let Some(max) = limit.maximum() {
-		write!(w, "{}", max)?;
-	} else {
-		write!(w, "nil")?;
-	}
-
-	write!(w, ")")
+	write!(w, "rt.memory.new({}, {})", a, b)
 }
 
 fn gen_nil_array(name: &str, len: usize, w: &mut dyn Write) -> Result<()> {