Method readModule

src/jvm/clojure/asm/ClassReader.java:701–814

Reads the module attribute and visit it. @param classVisitor the current class visitor @param context information about the class being parsed. @param moduleOffset the offset of the Module attribute (excluding the attribute_info's attribute_name_index and attribute_length fields). @param module

(
      final ClassVisitor classVisitor,
      final Context context,
      final int moduleOffset,
      final int modulePackagesOffset,
      final String moduleMainClass)

   * @param moduleMainClass the string corresponding to the ModuleMainClass attribute, or null.
   */
  private void readModule(
      final ClassVisitor classVisitor,
      final Context context,
      final int moduleOffset,
      final int modulePackagesOffset,
      final String moduleMainClass) {
    char[] buffer = context.charBuffer;

    // Read the module_name_index, module_flags and module_version_index fields and visit them.
    int currentOffset = moduleOffset;
    String moduleName = readModule(currentOffset, buffer);
    int moduleFlags = readUnsignedShort(currentOffset + 2);
    String moduleVersion = readUTF8(currentOffset + 4, buffer);
    currentOffset += 6;
    ModuleVisitor moduleVisitor = classVisitor.visitModule(moduleName, moduleFlags, moduleVersion);
    if (moduleVisitor == null) {
      return;
    }

    // Visit the ModuleMainClass attribute.
    if (moduleMainClass != null) {
      moduleVisitor.visitMainClass(moduleMainClass);
    }

    // Visit the ModulePackages attribute.
    if (modulePackagesOffset != 0) {
      int packageCount = readUnsignedShort(modulePackagesOffset);
      int currentPackageOffset = modulePackagesOffset + 2;
      while (packageCount-- > 0) {
        moduleVisitor.visitPackage(readPackage(currentPackageOffset, buffer));
        currentPackageOffset += 2;
      }
    }

    // Read the 'requires_count' and 'requires' fields.
    int requiresCount = readUnsignedShort(currentOffset);
    currentOffset += 2;
    while (requiresCount-- > 0) {
      // Read the requires_index, requires_flags and requires_version fields and visit them.
      String requires = readModule(currentOffset, buffer);
      int requiresFlags = readUnsignedShort(currentOffset + 2);
      String requiresVersion = readUTF8(currentOffset + 4, buffer);
      currentOffset += 6;
      moduleVisitor.visitRequire(requires, requiresFlags, requiresVersion);
    }

    // Read the 'exports_count' and 'exports' fields.
    int exportsCount = readUnsignedShort(currentOffset);
    currentOffset += 2;
    while (exportsCount-- > 0) {
      // Read the exports_index, exports_flags, exports_to_count and exports_to_index fields
      // and visit them.
      String exports = readPackage(currentOffset, buffer);
      int exportsFlags = readUnsignedShort(currentOffset + 2);
      int exportsToCount = readUnsignedShort(currentOffset + 4);
      currentOffset += 6;
      String[] exportsTo = null;
      if (exportsToCount != 0) {