luaur-code-gen 0.1.3

Native (A64/X64) code generation for Luau (Rust).
Documentation 
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use crate::macros::codegen_assert::CODEGEN_ASSERT;
use crate::records::assembly_builder_a_64::AssemblyBuilderA64;

impl AssemblyBuilderA64 {
    pub fn finalize(&mut self) -> bool {
        let code_pos_ptr = self.code_pos as *const u32;
        let code_data_ptr = self.code.as_ptr();
        let code_len = unsafe { code_pos_ptr.offset_from(code_data_ptr) as usize };
        self.code.resize(code_len, 0);

        let pending_labels = core::mem::take(&mut self.pending_labels);
        for fixup in pending_labels {
            let label = fixup.label();
            CODEGEN_ASSERT!(self.label_locations[label as usize - 1] != !0u32);
            let value = (self.label_locations[label as usize - 1] as i32) - (fixup.location as i32);

            self.patch_offset(fixup.location, value, fixup.kind());
        }

        let data_size = self.data.len() - self.data_pos;

        if data_size > 0 {
            self.data.copy_within(self.data_pos.., 0);
        }

        self.data.resize(data_size, 0);

        self.finalized = true;

        !self.overflowed
    }
}