mirror of
https://github.com/servo/servo
synced 2026-05-08 16:12:15 +02:00
99daf8c644
This is last step toward enabling the default rustc
`unsafe_op_in_unsafe_fn` warning for the script crate. It wraps the
remaining unsafe code in `unsafe {}` and removes the line disabling this
warning from `script`'s `Cargo.toml`. In addition, two variables are
renamed from `v` to something slightly more descriptive.
Testing: This should not change behavior so is covered by existing
tests.
Signed-off-by: Martin Robinson <mrobinson@igalia.com>
51 lines
1.8 KiB
Rust
51 lines
1.8 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/// Defines a macro `native_fn!` to create a JavaScript function from a Rust function pointer.
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/// # Example
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/// ```
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/// let js_function: Rc<Function> = native_fn!(my_rust_function, c"myFunction", 2, 0);
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/// ```
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#[macro_export]
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macro_rules! native_fn {
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($call:expr, $name:expr, $nargs:expr, $flags:expr) => {{
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let cx = $crate::dom::types::GlobalScope::get_cx();
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let fun_obj = $crate::native_raw_obj_fn!(cx, $call, $name, $nargs, $flags);
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#[expect(unsafe_code)]
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unsafe {
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Function::new(cx, fun_obj)
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}
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}};
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}
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/// Defines a macro `native_raw_obj_fn!` to create a raw JavaScript function object.
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/// # Example
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/// ```
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/// let raw_function_obj: *mut JSObject = native_raw_obj_fn!(cx, my_rust_function, c"myFunction", 2, 0);
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/// ```
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#[macro_export]
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macro_rules! native_raw_obj_fn {
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($cx:expr, $call:expr, $name:expr, $nargs:expr, $flags:expr) => {{
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#[expect(unsafe_code)]
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#[allow(clippy::macro_metavars_in_unsafe)]
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unsafe extern "C" fn wrapper(cx: *mut JSContext, argc: u32, vp: *mut JSVal) -> bool {
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unsafe { $call(cx, argc, vp) }
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}
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#[expect(unsafe_code)]
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#[allow(clippy::macro_metavars_in_unsafe)]
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unsafe {
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let name: &std::ffi::CStr = $name;
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let raw_fun = js::jsapi::JS_NewFunction(
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*$cx,
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Some(wrapper),
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$nargs,
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$flags,
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name.as_ptr() as *const std::ffi::c_char,
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);
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assert!(!raw_fun.is_null());
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js::jsapi::JS_GetFunctionObject(raw_fun)
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}
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}};
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}
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