ClassDeclaration() — svelte Function Reference

Source Code

packages/svelte/src/compiler/phases/2-analyze/visitors/ClassDeclaration.js lines 10–25

export function ClassDeclaration(node, context) {
	if (context.state.analysis.runes && node.id !== null) {
		validate_identifier_name(context.state.scope.get(node.id.name));
	}

	// In modules, we allow top-level module scope only, in components, we allow the component scope,
	// which is function_depth of 1. With the exception of `new class` which is also not allowed at
	// component scope level either.
	const allowed_depth = context.state.ast_type === 'module' ? 0 : 1;

	if (context.state.scope.function_depth > allowed_depth) {
		w.perf_avoid_nested_class(node);
	}

	context.next();
}