import java.io.File;

class ChecksumEntry extends VerificationEntry {

    private final ChecksumKind checksumKind;
    private final int hashCode;

    // This field is mutable and is just a performance optimization
    // to avoid creating an extra map in the end, so it does NOT
    // participate in equals/hashcode
    private String checksum;

		initialCachedChecksums map[string]*checksumEntry
		fetchURL               string
		purgeInterval          time.Duration
		wasmModuleExpiry       time.Duration
		checkPurgeTimeout      time.Duration
		getOptions             GetOptions
		wantCachedModules      map[moduleKey]*cacheEntry
		wantCachedChecksums    map[string]*checksumEntry
		wantFileName           string
		wantErrorMsgPrefix     string

            // previous entry was on unrelated module
            pgpEntry = null;
            previousEntry.set(null);
        }
        if (entry instanceof ChecksumEntry) {
            ChecksumEntry checksum = (ChecksumEntry) entry;
            if (pgpEntry == null || (entry.id.equals(pgpEntry.id) && pgpEntry.isRequiringChecksums())) {
                String origin = "Generated by Gradle";

type LocalFileCache struct {
	// Map from Wasm module checksum to cache entry.
	modules map[moduleKey]*cacheEntry
	// Map from tagged URL to checksum
	checksums map[string]*checksumEntry
	// http fetcher fetches Wasm module with HTTP get.
	httpFetcher *HTTPFetcher

	// directory path used to store Wasm module.
	dir string