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packages/svelte/src/compiler/phases/3-transform/client/visitors/shared/utils.js

@@ -20,6 +20,10 @@ export function memoize_expression(state, value) {
 	return b.call('$.get', id);
 }
 
+/**
+ * A utility for extracting complex expressions (such as call expressions)
+ * from templates and replacing them with `$0`, `$1` etc
+ */
 export class Memoizer {
 	/** @type {Array<{ id: Identifier, expression: Expression }>} */
 	#sync = [];