const CoverageProviderMap = {
v8: "@vitest/coverage-v8",
istanbul: "@vitest/coverage-istanbul"
};
async function resolveCoverageProviderModule(options, loader) {
if (!options?.enabled || !options.provider) return null;
const provider = options.provider;
if (provider === "v8" || provider === "istanbul") {
let builtInModule = CoverageProviderMap[provider];
if (provider === "v8" && loader.isBrowser) builtInModule += "/browser";
const { default: coverageModule } = await loader.import(builtInModule);
if (!coverageModule) throw new Error(`Failed to load ${CoverageProviderMap[provider]}. Default export is missing.`);
return coverageModule;
}
let customProviderModule;
try {
customProviderModule = await loader.import(options.customProviderModule);
} catch (error) {
throw new Error(`Failed to load custom CoverageProviderModule from ${options.customProviderModule}`, { cause: error });
}
if (customProviderModule.default == null) throw new Error(`Custom CoverageProviderModule loaded from ${options.customProviderModule} was not the default export`);
return customProviderModule.default;
}
export { CoverageProviderMap as C, resolveCoverageProviderModule as r };
