ea6b62cbc6
Allows a LanguageFn to be passed around and create multiple languages since Language::new consumes a LanguageFn
LanguageFn just wraps a function pointer, which already conforms to Copy so this is a simple addition.
(cherry picked from commit d60789afdc)
22 lines
643 B
Rust
22 lines
643 B
Rust
#![no_std]
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/// LanguageFn wraps a C function that returns a pointer to a tree-sitter grammer.
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#[repr(transparent)]
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#[derive(Clone, Copy)]
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pub struct LanguageFn(unsafe extern "C" fn() -> *const ());
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impl LanguageFn {
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/// Creates a `LanguageFn`.
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///
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/// # Safety
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///
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/// Only call this with language functions generated from grammars
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/// by the Tree-sitter CLI.
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pub const unsafe fn from_raw(f: unsafe extern "C" fn() -> *const ()) -> Self {
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Self(f)
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}
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/// Gets the function wrapped by this `LanguageFn`.
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pub const fn into_raw(self) -> unsafe extern "C" fn() -> *const () {
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self.0
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}
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}
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