refactor(core): zero circulars + esm ready (#10770)

packages/core/module-name-resolver/helpers.ts

@@ -0,0 +1,38 @@
+export type ModuleListProvider = () => string[];
+
+let appForModuleResolverCallback: () => void;
+export function prepareAppForModuleResolver(callback: () => void) {
+	appForModuleResolverCallback = callback;
+}
+
+export function initAppForModuleResolver() {
+	if (appForModuleResolverCallback) {
+		appForModuleResolverCallback();
+		appForModuleResolverCallback = undefined;
+	}
+}
+
+export interface ModuleNameResolverType {
+	resolveModuleName(path: string, ext: string): string;
+	clearCache(): void;
+}
+
+let resolverInstance: ModuleNameResolverType;
+
+export function getResolveInstance() {
+	return resolverInstance;
+}
+
+/**
+ * Used to set a global singular instance of ModuleNameResolver
+ * @param resolver instance
+ */
+export function _setResolver(resolver: ModuleNameResolverType) {
+	resolverInstance = resolver;
+}
+
+export function clearResolverCache() {
+	if (resolverInstance) {
+		resolverInstance.clearCache();
+	}
+}