Function generateImportObject

lib/wasm-sync/WasmChunkLoadingRuntimeModule.js:61–220

(
	chunkGraph,
	module,
	mangle,
	declarations,
	runtime
)

 * @returns {string} source code
 */
const generateImportObject = (
	chunkGraph,
	module,
	mangle,
	declarations,
	runtime
) => {
	const moduleGraph = chunkGraph.moduleGraph;
	/** @type {Map<string, ModuleId>} */
	const waitForInstances = new Map();
	/** @type {{ module: string, name: string, value: string }[]} */
	const properties = [];
	const usedWasmDependencies = WebAssemblyUtils.getUsedDependencies(
		moduleGraph,
		module,
		mangle
	);
	for (const usedDep of usedWasmDependencies) {
		const dep = usedDep.dependency;
		const importedModule = moduleGraph.getModule(dep);
		const exportName = dep.name;
		const usedName =
			importedModule &&
			moduleGraph
				.getExportsInfo(importedModule)
				.getUsedName(exportName, runtime);
		const description = dep.description;
		const direct = dep.onlyDirectImport;

		const module = usedDep.module;
		const name = usedDep.name;

		if (direct) {
			const instanceVar = `m${waitForInstances.size}`;
			waitForInstances.set(
				instanceVar,
				/** @type {ModuleId} */
				(chunkGraph.getModuleId(/** @type {Module} */ (importedModule)))
			);
			properties.push({
				module,
				name,
				value: `${instanceVar}[${JSON.stringify(usedName)}]`
			});
		} else {
			const params =
				/** @type {Signature} */
				(description.signature).params.map(
					(param, k) => `p${k}${param.valtype}`
				);

			const mod = `${RuntimeGlobals.moduleCache}[${JSON.stringify(
				chunkGraph.getModuleId(/** @type {Module} */ (importedModule))
			)}]`;
			const modExports = `${mod}.exports`;

			const cache = `wasmImportedFuncCache${declarations.length}`;
			declarations.push(`var ${cache};`);