refactor(ast): make AstBuilder non-exhaustive (#4925)

crates/oxc_ast/src/generated/ast_builder.rs

@@ -14,6 +14,7 @@ use crate::ast::*;
 
 /// AST builder for creating AST nodes
 #[derive(Clone, Copy)]
+#[non_exhaustive]
 pub struct AstBuilder<'a> {
     pub allocator: &'a Allocator,
 }

crates/oxc_transformer/src/lib.rs

@@ -34,7 +34,7 @@ use es2019::ES2019;
 use es2020::ES2020;
 use es2021::ES2021;
 use oxc_allocator::{Allocator, Vec};
-use oxc_ast::{ast::*, AstBuilder, Trivias};
+use oxc_ast::{ast::*, Trivias};
 use oxc_diagnostics::OxcDiagnostic;
 use oxc_semantic::{ScopeTree, SemanticBuilder, SymbolTable};
 use oxc_span::SourceType;
@@ -107,7 +107,7 @@ impl<'a> Transformer<'a> {
             .build(program)
             .semantic
             .into_symbol_table_and_scope_tree();
-        let TransformCtx { ast: AstBuilder { allocator }, .. } = *self.ctx;
+        let allocator: &'a Allocator = self.ctx.ast.allocator;
         let (symbols, scopes) = traverse_mut(&mut self, allocator, program, symbols, scopes);
         TransformerReturn { errors: self.ctx.take_errors(), symbols, scopes }
     }
@@ -118,7 +118,7 @@ impl<'a> Transformer<'a> {
         scopes: ScopeTree,
         program: &mut Program<'a>,
     ) -> TransformerReturn {
-        let TransformCtx { ast: AstBuilder { allocator }, .. } = *self.ctx;
+        let allocator: &'a Allocator = self.ctx.ast.allocator;
         let (symbols, scopes) = traverse_mut(&mut self, allocator, program, symbols, scopes);
         TransformerReturn { errors: self.ctx.take_errors(), symbols, scopes }
     }

tasks/ast_tools/src/generators/ast_builder.rs

@@ -57,6 +57,7 @@ impl Generator for AstBuilderGenerator {
                 ///@@line_break
                 /// AST builder for creating AST nodes
                 #[derive(Clone, Copy)]
+                #[non_exhaustive]
                 pub struct AstBuilder<'a> {
                     pub allocator: &'a Allocator,
                 }