luaur_ast/methods/
parser_copy_parser.rs

1use crate::records::ast_array::AstArray;
2use crate::records::parser::Parser;
3
4impl Parser {
5    pub fn copy_t_usize<T: Clone>(&mut self, data: *const T, size: usize) -> AstArray<T> {
6        let mut result = AstArray {
7            data: core::ptr::null_mut(),
8            size,
9        };
10
11        if size == 0 {
12            return result;
13        }
14
15        unsafe {
16            // allocator is a *mut Allocator in the Parser struct
17            let storage = crate::records::allocator::Allocator::allocate(
18                &mut *self.allocator,
19                core::mem::size_of::<T>() * size,
20            ) as *mut T;
21
22            result.data = storage;
23
24            // The C++ implementation uses placement new with the copy constructor.
25            // In Rust, for types that are Clone, we can use ptr::write with clone().
26            // Since Luau AST nodes/types in this context are POD-like or managed by the arena
27            // and don't have destructors (as noted in the C++ comment), this is a safe mapping.
28            for i in 0..size {
29                let src = &*data.add(i);
30                core::ptr::write(result.data.add(i), src.clone());
31            }
32        }
33
34        result
35    }
36}
luaur_ast/methods/parser_copy_parser.rs

luaur_ast/methods/
parser_copy_parser.rs
