luau-syntax 0.732.0

Luau lexer, parser, AST, CST, and source utilities
Documentation 
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use bumpalo::Bump;

use crate::{
    ast::{
        AstString, Attribute, Block, BlockNode, Function, GenericType, GenericTypePack, Local,
        LocalInit, Type, TypeKind, TypePack, TypePackKind,
    },
    location::Location,
};

#[derive(Debug, Default)]
pub struct AstArena {
    bump: Bump,
}

impl AstArena {
    pub fn new() -> Self {
        Self { bump: Bump::new() }
    }

    pub fn alloc<T>(&self, value: T) -> &mut T {
        self.bump.alloc(value)
    }

    pub fn alloc_node<T>(&self, value: T) -> &T {
        self.bump.alloc(value)
    }

    pub(crate) fn alloc_block<'ast>(&'ast self, value: BlockNode<'ast>) -> Block<'ast> {
        self.alloc_block_node(value)
    }

    pub fn alloc_attribute<'ast>(&'ast self, value: Attribute<'ast>) -> &'ast Attribute<'ast> {
        self.alloc_node(value)
    }

    pub fn alloc_function<'ast>(&'ast self, value: Function<'ast>) -> &'ast Function<'ast> {
        self.alloc_node(value)
    }

    pub fn alloc_generic_type<'ast>(
        &'ast self,
        value: GenericType<'ast>,
    ) -> &'ast GenericType<'ast> {
        self.alloc_node(value)
    }

    pub fn alloc_generic_type_pack<'ast>(
        &'ast self,
        value: GenericTypePack<'ast>,
    ) -> &'ast GenericTypePack<'ast> {
        self.alloc_node(value)
    }

    pub fn alloc_local<'ast>(&'ast self, value: Local<'ast>) -> &'ast Local<'ast> {
        self.alloc_node(value)
    }

    pub fn alloc_local_binding<'ast>(&'ast self, init: LocalInit<'ast>) -> &'ast Local<'ast> {
        self.alloc_local(Local::new(init))
    }

    pub fn alloc_type<'ast>(&'ast self, location: Location, value: TypeKind<'ast>) -> Type<'ast> {
        self.alloc_type_kind(location, value)
    }

    pub fn alloc_type_pack<'ast>(
        &'ast self,
        location: Location,
        value: TypePackKind<'ast>,
    ) -> TypePack<'ast> {
        self.alloc_type_pack_kind(location, value)
    }

    pub fn alloc_slice_fill_iter<T, I>(&self, values: I) -> &[T]
    where
        I: IntoIterator<Item = T>,
        I::IntoIter: ExactSizeIterator,
    {
        self.bump.alloc_slice_fill_iter(values)
    }

    pub fn alloc_slice_copy<T: Copy>(&self, values: &[T]) -> &[T] {
        self.bump.alloc_slice_copy(values)
    }

    pub fn alloc_bytes(&self, bytes: &[u8]) -> &[u8] {
        self.alloc_slice_copy(bytes)
    }

    pub fn alloc_ast_string<'ast>(&'ast self, bytes: &[u8]) -> AstString<'ast> {
        AstString::from_arena_bytes(self.alloc_bytes(bytes))
    }
}