traxys/tree-sitter
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Allow wasm languages to be deleted

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This commit is contained in:
Max Brunsfeld 2023-12-27 14:54:38 -08:00
parent da16cb1459
commit 4a8e4b1963
10 changed files with 142 additions and 62 deletions
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32
lib/binding_rust/lib.rs
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@ -11,9 +11,9 @@ use std::{
ffi::CStr,
fmt, hash, iter,
marker::PhantomData,
mem::MaybeUninit,
mem::{self, MaybeUninit},
num::NonZeroU16,
ops,
ops::{self, Deref},
os::raw::{c_char, c_void},
ptr::{self, NonNull},
slice, str,
@ -51,6 +51,8 @@ pub const PARSER_HEADER: &'static str = include_str!("../include/tree_sitter/par
#[repr(transparent)]
pub struct Language(*const ffi::TSLanguage);
pub struct LanguageRef<'a>(*const ffi::TSLanguage, PhantomData<&'a ()>);
/// A tree that represents the syntactic structure of a source code file.
#[doc(alias = "TSTree")]
pub struct Tree(NonNull<ffi::TSTree>);
@ -397,6 +399,14 @@ impl Drop for Language {
}
}
impl<'a> Deref for LanguageRef<'a> {
type Target = Language;
fn deref(&self) -> &Self::Target {
unsafe { mem::transmute(&self.0) }
}
}
impl Parser {
/// Create a new parser.
pub fn new() -> Parser {
@ -778,8 +788,11 @@ impl Tree {
/// Get the language that was used to parse the syntax tree.
#[doc(alias = "ts_tree_language")]
pub fn language(&self) -> Language {
Language(unsafe { ffi::ts_tree_language(self.0.as_ptr()) })
pub fn language(&self) -> LanguageRef {
LanguageRef(
unsafe { ffi::ts_tree_language(self.0.as_ptr()) },
PhantomData,
)
}
/// Edit the syntax tree to keep it in sync with source code that has been
@ -906,8 +919,8 @@ impl<'tree> Node<'tree> {
/// Get the [`Language`] that was used to parse this node's syntax tree.
#[doc(alias = "ts_node_language")]
pub fn language(&self) -> Language {
Language(unsafe { ffi::ts_node_language(self.0) })
pub fn language(&self) -> LanguageRef {
LanguageRef(unsafe { ffi::ts_node_language(self.0) }, PhantomData)
}
/// Check if this node is *named*.
@ -1485,8 +1498,11 @@ impl Drop for TreeCursor<'_> {
impl LookaheadIterator {
/// Get the current language of the lookahead iterator.
#[doc(alias = "ts_lookahead_iterator_language")]
pub fn language(&self) -> Language {
Language(unsafe { ffi::ts_lookahead_iterator_language(self.0.as_ptr()) })
pub fn language(&self) -> LanguageRef<'_> {
LanguageRef(
unsafe { ffi::ts_lookahead_iterator_language(self.0.as_ptr()) },
PhantomData,
)
}
/// Get the current symbol of the lookahead iterator.