55 lines
1.5 KiB
Rust
55 lines
1.5 KiB
Rust
use std::{mem, ptr, slice};
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use minify_html::{Cfg, Error, in_place};
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#[no_mangle]
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pub extern "C" fn ffi_create_cfg(minify_js: bool) -> *const Cfg {
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Box::into_raw(Box::new(Cfg {
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minify_js,
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}))
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}
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#[no_mangle]
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pub extern "C" fn ffi_drop_cfg(cfg: *const Cfg) -> () {
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unsafe {
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Box::from_raw(cfg as *mut Cfg);
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};
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}
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#[repr(C)]
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pub struct ffi_error {
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message: *mut u8,
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message_len: usize,
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position: usize,
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}
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#[no_mangle]
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pub extern "C" fn ffi_drop_ffi_error(ffi_error_ptr: *const ffi_error) -> () {
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unsafe {
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let ffi_error = Box::from_raw(ffi_error_ptr as *mut ffi_error);
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let _ = String::from_raw_parts(ffi_error.message, ffi_error.message_len, ffi_error.message_len);
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};
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}
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#[no_mangle]
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pub extern "C" fn ffi_in_place(code: *mut u8, code_len: usize, cfg: *const Cfg, out_min_len: *mut usize) -> *const ffi_error {
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let code_slice = unsafe { slice::from_raw_parts_mut(code, code_len) };
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match in_place(code_slice, unsafe { &*cfg }) {
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Ok(min_len) => unsafe {
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*out_min_len = min_len;
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ptr::null()
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}
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Err(Error { error_type, position }) => {
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let mut msg = error_type.message();
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msg.shrink_to_fit();
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let msg_ptr = msg.as_mut_ptr();
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let msg_len = msg.len();
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mem::forget(msg);
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Box::into_raw(Box::new(ffi_error {
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message: msg_ptr,
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message_len: msg_len,
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position,
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}))
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}
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}
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}
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