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Diffstat (limited to 'src/libdeno.rs')
-rw-r--r-- | src/libdeno.rs | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/src/libdeno.rs b/src/libdeno.rs deleted file mode 100644 index 6696a382b..000000000 --- a/src/libdeno.rs +++ /dev/null @@ -1,192 +0,0 @@ -// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license. - -// TODO Remove. While core is being developed, it may not use the complete -// libdeno API. Thus we allow dead code until things settle. -#![allow(dead_code)] - -use libc::c_char; -use libc::c_int; -use libc::c_void; -use libc::size_t; -use std::ops::{Deref, DerefMut}; -use std::ptr::null; - -// TODO(F001): change this definition to `extern { pub type isolate; }` -// After RFC 1861 is stablized. See https://github.com/rust-lang/rust/issues/43467. -#[repr(C)] -pub struct isolate { - _unused: [u8; 0], -} - -/// If "alloc_ptr" is not null, this type represents a buffer which is created -/// in C side, and then passed to Rust side by `deno_recv_cb`. Finally it should -/// be moved back to C side by `deno_respond`. If it is not passed to -/// `deno_respond` in the end, it will be leaked. -/// -/// If "alloc_ptr" is null, this type represents a borrowed slice. -#[repr(C)] -pub struct deno_buf { - alloc_ptr: *const u8, - alloc_len: usize, - data_ptr: *const u8, - data_len: usize, - pub zero_copy_id: usize, -} - -/// `deno_buf` can not clone, and there is no interior mutability. -/// This type satisfies Send bound. -unsafe impl Send for deno_buf {} - -impl deno_buf { - #[inline] - pub fn empty() -> Self { - Self { - alloc_ptr: null(), - alloc_len: 0, - data_ptr: null(), - data_len: 0, - zero_copy_id: 0, - } - } - - #[inline] - pub unsafe fn from_raw_parts(ptr: *const u8, len: usize) -> Self { - Self { - alloc_ptr: null(), - alloc_len: 0, - data_ptr: ptr, - data_len: len, - zero_copy_id: 0, - } - } -} - -/// Converts Rust &Buf to libdeno `deno_buf`. -impl<'a> From<&'a [u8]> for deno_buf { - #[inline] - fn from(x: &'a [u8]) -> Self { - Self { - alloc_ptr: null(), - alloc_len: 0, - data_ptr: x.as_ref().as_ptr(), - data_len: x.len(), - zero_copy_id: 0, - } - } -} - -impl Deref for deno_buf { - type Target = [u8]; - #[inline] - fn deref(&self) -> &[u8] { - unsafe { std::slice::from_raw_parts(self.data_ptr, self.data_len) } - } -} - -impl DerefMut for deno_buf { - #[inline] - fn deref_mut(&mut self) -> &mut [u8] { - unsafe { - if self.alloc_ptr.is_null() { - panic!("Can't modify the buf"); - } - std::slice::from_raw_parts_mut(self.data_ptr as *mut u8, self.data_len) - } - } -} - -impl AsRef<[u8]> for deno_buf { - #[inline] - fn as_ref(&self) -> &[u8] { - &*self - } -} - -impl AsMut<[u8]> for deno_buf { - #[inline] - fn as_mut(&mut self) -> &mut [u8] { - if self.alloc_ptr.is_null() { - panic!("Can't modify the buf"); - } - &mut *self - } -} - -#[allow(non_camel_case_types)] -type deno_recv_cb = unsafe extern "C" fn( - user_data: *mut c_void, - control_buf: deno_buf, // deprecated - zero_copy_buf: deno_buf, -); - -#[allow(non_camel_case_types)] -pub type deno_mod = i32; - -#[allow(non_camel_case_types)] -type deno_resolve_cb = unsafe extern "C" fn( - user_data: *mut c_void, - specifier: *const c_char, - referrer: deno_mod, -) -> deno_mod; - -#[repr(C)] -pub struct deno_config { - pub will_snapshot: c_int, - pub load_snapshot: deno_buf, - pub shared: deno_buf, - pub recv_cb: deno_recv_cb, -} - -extern "C" { - pub fn deno_init(); - pub fn deno_v8_version() -> *const c_char; - pub fn deno_set_v8_flags(argc: *mut c_int, argv: *mut *mut c_char); - pub fn deno_new(config: deno_config) -> *const isolate; - pub fn deno_delete(i: *const isolate); - pub fn deno_last_exception(i: *const isolate) -> *const c_char; - pub fn deno_check_promise_errors(i: *const isolate); - pub fn deno_lock(i: *const isolate); - pub fn deno_unlock(i: *const isolate); - pub fn deno_respond( - i: *const isolate, - user_data: *const c_void, - buf: deno_buf, - ); - pub fn deno_zero_copy_release(i: *const isolate, zero_copy_id: usize); - pub fn deno_execute( - i: *const isolate, - user_data: *const c_void, - js_filename: *const c_char, - js_source: *const c_char, - ); - - // Modules - - pub fn deno_mod_new( - i: *const isolate, - main: bool, - name: *const c_char, - source: *const c_char, - ) -> deno_mod; - - pub fn deno_mod_imports_len(i: *const isolate, id: deno_mod) -> size_t; - - pub fn deno_mod_imports_get( - i: *const isolate, - id: deno_mod, - index: size_t, - ) -> *const c_char; - - pub fn deno_mod_instantiate( - i: *const isolate, - user_data: *const c_void, - id: deno_mod, - resolve_cb: deno_resolve_cb, - ); - - pub fn deno_mod_evaluate( - i: *const isolate, - user_data: *const c_void, - id: deno_mod, - ); -} |