react_compiler_lowering/
lib.rs

1pub mod build_hir;
2pub mod find_context_identifiers;
3pub mod hir_builder;
4pub mod identifier_loc_index;
5
6use react_compiler_ast::expressions::ArrowFunctionExpression;
7use react_compiler_ast::expressions::FunctionExpression;
8use react_compiler_ast::statements::FunctionDeclaration;
9use react_compiler_hir::BindingKind;
10
11/// Convert AST binding kind to HIR binding kind.
12pub fn convert_binding_kind(kind: &react_compiler_ast::scope::BindingKind) -> BindingKind {
13    match kind {
14        react_compiler_ast::scope::BindingKind::Var => BindingKind::Var,
15        react_compiler_ast::scope::BindingKind::Let => BindingKind::Let,
16        react_compiler_ast::scope::BindingKind::Const => BindingKind::Const,
17        react_compiler_ast::scope::BindingKind::Param => BindingKind::Param,
18        react_compiler_ast::scope::BindingKind::Module => BindingKind::Module,
19        react_compiler_ast::scope::BindingKind::Hoisted => BindingKind::Hoisted,
20        react_compiler_ast::scope::BindingKind::Local => BindingKind::Local,
21        react_compiler_ast::scope::BindingKind::Unknown => BindingKind::Unknown,
22    }
23}
24
25/// Represents a reference to a function AST node for lowering.
26/// Analogous to TS's `NodePath<t.Function>` / `BabelFn`.
27pub enum FunctionNode<'a> {
28    FunctionDeclaration(&'a FunctionDeclaration),
29    FunctionExpression(&'a FunctionExpression),
30    ArrowFunctionExpression(&'a ArrowFunctionExpression),
31}
32
33impl<'a> FunctionNode<'a> {
34    /// Get the node_id of the function node. Panics if not set.
35    pub fn node_id(&self) -> Option<u32> {
36        match self {
37            FunctionNode::FunctionDeclaration(d) => d.base.node_id,
38            FunctionNode::FunctionExpression(e) => e.base.node_id,
39            FunctionNode::ArrowFunctionExpression(a) => a.base.node_id,
40        }
41    }
42}
43
44// The main lower() function - delegates to build_hir
45pub use build_hir::lower;
46// Re-export post-build helper functions used by optimization passes
47pub use hir_builder::{
48    create_temporary_place, get_reverse_postordered_blocks, mark_instruction_ids,
49    mark_predecessors, remove_dead_do_while_statements, remove_unnecessary_try_catch,
50    remove_unreachable_for_updates,
51};
52pub use react_compiler_hir::visitors::each_terminal_successor;
53pub use react_compiler_hir::visitors::terminal_fallthrough;
react_compiler_lowering/lib.rs

react_compiler_lowering/
lib.rs
