pkg/analyzer/lib/src/summary2/element_flags.dart

// Copyright (c) 2021, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:analyzer/src/dart/element/element.dart';
import 'package:analyzer/src/summary2/data_reader.dart';
import 'package:analyzer/src/summary2/data_writer.dart';

class ClassElementFlags {
  static const int _isAbstract = 1 << 0;
  static const int _isMixinApplication = 1 << 1;
  static const int _isSimplyBounded = 1 << 2;

  static void read(SummaryDataReader reader, ClassElementImpl element) {
    var byte = reader.readByte();
    element.isAbstract = (byte & _isAbstract) != 0;
    element.isMixinApplication = (byte & _isMixinApplication) != 0;
    element.isSimplyBounded = (byte & _isSimplyBounded) != 0;
  }

  static void write(BufferedSink sink, ClassElementImpl element) {
    var result = 0;
    result |= element.isAbstract ? _isAbstract : 0;
    result |= element.isMixinApplication ? _isMixinApplication : 0;
    result |= element.isSimplyBounded ? _isSimplyBounded : 0;
    sink.writeByte(result);
  }
}

class ConstructorElementFlags {
  static const int _isConst = 1 << 0;
  static const int _isExternal = 1 << 1;
  static const int _isFactory = 1 << 2;
  static const int _isSynthetic = 1 << 3;

  static void read(SummaryDataReader reader, ConstructorElementImpl element) {
    var byte = reader.readByte();
    element.isConst = (byte & _isConst) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isFactory = (byte & _isFactory) != 0;
    element.isSynthetic = (byte & _isSynthetic) != 0;
  }

  static void write(BufferedSink sink, ConstructorElementImpl element) {
    var result = 0;
    result |= element.isConst ? _isConst : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isFactory ? _isFactory : 0;
    result |= element.isSynthetic ? _isSynthetic : 0;
    sink.writeByte(result);
  }
}

class FieldElementFlags {
  static const int _hasImplicitType = 1 << 0;
  static const int _hasInitializer = 1 << 1;
  static const int _inheritsCovariant = 1 << 2;
  static const int _isAbstract = 1 << 3;
  static const int _isConst = 1 << 4;
  static const int _isCovariant = 1 << 5;
  static const int _isExternal = 1 << 6;
  static const int _isFinal = 1 << 7;
  static const int _isLate = 1 << 8;
  static const int _isStatic = 1 << 9;

  static void read(SummaryDataReader reader, FieldElementImpl element) {
    var byte = reader.readUInt30();
    element.hasImplicitType = (byte & _hasImplicitType) != 0;
    element.hasInitializer = (byte & _hasInitializer) != 0;
    element.inheritsCovariant = (byte & _inheritsCovariant) != 0;
    element.isAbstract = (byte & _isAbstract) != 0;
    element.isConst = (byte & _isConst) != 0;
    element.isCovariant = (byte & _isCovariant) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isFinal = (byte & _isFinal) != 0;
    element.isLate = (byte & _isLate) != 0;
    element.isStatic = (byte & _isStatic) != 0;
  }

  static void write(BufferedSink sink, FieldElementImpl element) {
    var result = 0;
    result |= element.hasImplicitType ? _hasImplicitType : 0;
    result |= element.hasInitializer ? _hasInitializer : 0;
    result |= element.inheritsCovariant ? _inheritsCovariant : 0;
    result |= element.isAbstract ? _isAbstract : 0;
    result |= element.isConst ? _isConst : 0;
    result |= element.isCovariant ? _isCovariant : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isFinal ? _isFinal : 0;
    result |= element.isLate ? _isLate : 0;
    result |= element.isStatic ? _isStatic : 0;
    sink.writeUInt30(result);
  }
}

class FunctionElementFlags {
  static const int _hasImplicitReturnType = 1 << 0;
  static const int _isAsynchronous = 1 << 1;
  static const int _isExternal = 1 << 2;
  static const int _isGenerator = 1 << 3;

  static void read(SummaryDataReader reader, FunctionElementImpl element) {
    var byte = reader.readByte();
    element.hasImplicitReturnType = (byte & _hasImplicitReturnType) != 0;
    element.isAsynchronous = (byte & _isAsynchronous) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isGenerator = (byte & _isGenerator) != 0;
  }

  static void write(BufferedSink sink, FunctionElementImpl element) {
    var result = 0;
    result |= element.hasImplicitReturnType ? _hasImplicitReturnType : 0;
    result |= element.isAsynchronous ? _isAsynchronous : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isGenerator ? _isGenerator : 0;
    sink.writeByte(result);
  }
}

class ImportElementFlags {
  static const int _isDeferred = 1 << 0;
  static const int _isSynthetic = 1 << 1;

  static void read(SummaryDataReader reader, ImportElementImpl element) {
    var byte = reader.readByte();
    element.isDeferred = (byte & _isDeferred) != 0;
    element.isSynthetic = (byte & _isSynthetic) != 0;
  }

  static void write(BufferedSink sink, ImportElementImpl element) {
    var result = 0;
    result |= element.isDeferred ? _isDeferred : 0;
    result |= element.isSynthetic ? _isSynthetic : 0;
    sink.writeByte(result);
  }
}

class LibraryElementFlags {
  static const int _hasExtUri = 1 << 0;
  static const int _hasPartOfDirective = 1 << 1;
  static const int _isSynthetic = 1 << 2;

  static void read(SummaryDataReader reader, LibraryElementImpl element) {
    var byte = reader.readByte();
    element.hasExtUri = (byte & _hasExtUri) != 0;
    element.hasPartOfDirective = (byte & _hasPartOfDirective) != 0;
    element.isSynthetic = (byte & _isSynthetic) != 0;
  }

  static void write(BufferedSink sink, LibraryElementImpl element) {
    var result = 0;
    result |= element.hasExtUri ? _hasExtUri : 0;
    result |= element.hasPartOfDirective ? _hasPartOfDirective : 0;
    result |= element.isSynthetic ? _isSynthetic : 0;
    sink.writeByte(result);
  }
}

class MethodElementFlags {
  static const int _hasImplicitReturnType = 1 << 0;
  static const int _isAbstract = 1 << 1;
  static const int _isAsynchronous = 1 << 2;
  static const int _isExternal = 1 << 3;
  static const int _isGenerator = 1 << 4;
  static const int _isStatic = 1 << 5;

  static void read(SummaryDataReader reader, MethodElementImpl element) {
    var byte = reader.readByte();
    element.hasImplicitReturnType = (byte & _hasImplicitReturnType) != 0;
    element.isAbstract = (byte & _isAbstract) != 0;
    element.isAsynchronous = (byte & _isAsynchronous) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isGenerator = (byte & _isGenerator) != 0;
    element.isStatic = (byte & _isStatic) != 0;
  }

  static void write(BufferedSink sink, MethodElementImpl element) {
    var result = 0;
    result |= element.hasImplicitReturnType ? _hasImplicitReturnType : 0;
    result |= element.isAbstract ? _isAbstract : 0;
    result |= element.isAsynchronous ? _isAsynchronous : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isGenerator ? _isGenerator : 0;
    result |= element.isStatic ? _isStatic : 0;
    sink.writeByte(result);
  }
}

class ParameterElementFlags {
  static const int _hasImplicitType = 1 << 0;
  static const int _inheritsCovariant = 1 << 1;
  static const int _isExplicitlyCovariant = 1 << 2;
  static const int _isFinal = 1 << 3;

  static void read(SummaryDataReader reader, ParameterElementImpl element) {
    var byte = reader.readByte();
    element.hasImplicitType = (byte & _hasImplicitType) != 0;
    element.inheritsCovariant = (byte & _inheritsCovariant) != 0;
    element.isExplicitlyCovariant = (byte & _isExplicitlyCovariant) != 0;
    element.isFinal = (byte & _isFinal) != 0;
  }

  static void write(BufferedSink sink, ParameterElementImpl element) {
    var result = 0;
    result |= element.hasImplicitType ? _hasImplicitType : 0;
    result |= element.inheritsCovariant ? _inheritsCovariant : 0;
    result |= element.isExplicitlyCovariant ? _isExplicitlyCovariant : 0;
    result |= element.isFinal ? _isFinal : 0;
    sink.writeByte(result);
  }
}

class PropertyAccessorElementFlags {
  static const int _isGetter = 1 << 0;
  static const int _isSetter = 1 << 1;
  static const int _hasImplicitReturnType = 1 << 2;
  static const int _isAbstract = 1 << 3;
  static const int _isAsynchronous = 1 << 4;
  static const int _isExternal = 1 << 5;
  static const int _isGenerator = 1 << 6;
  static const int _isStatic = 1 << 7;

  static void read(
    SummaryDataReader reader,
    PropertyAccessorElementImpl element,
  ) {
    var byte = reader.readUInt30();
    element.isGetter = (byte & _isGetter) != 0;
    element.isSetter = (byte & _isSetter) != 0;
    element.hasImplicitReturnType = (byte & _hasImplicitReturnType) != 0;
    element.isAbstract = (byte & _isAbstract) != 0;
    element.isAsynchronous = (byte & _isAsynchronous) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isGenerator = (byte & _isGenerator) != 0;
    element.isStatic = (byte & _isStatic) != 0;
  }

  static void write(BufferedSink sink, PropertyAccessorElementImpl element) {
    var result = 0;
    result |= element.isGetter ? _isGetter : 0;
    result |= element.isSetter ? _isSetter : 0;
    result |= element.hasImplicitReturnType ? _hasImplicitReturnType : 0;
    result |= element.isAbstract ? _isAbstract : 0;
    result |= element.isAsynchronous ? _isAsynchronous : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isGenerator ? _isGenerator : 0;
    result |= element.isStatic ? _isStatic : 0;
    sink.writeUInt30(result);
  }
}

class TopLevelVariableElementFlags {
  static const int _hasImplicitType = 1 << 0;
  static const int _hasInitializer = 1 << 1;
  static const int _isExternal = 1 << 2;
  static const int _isFinal = 1 << 3;
  static const int _isLate = 1 << 4;

  static void read(
    SummaryDataReader reader,
    TopLevelVariableElementImpl element,
  ) {
    var byte = reader.readByte();
    element.hasImplicitType = (byte & _hasImplicitType) != 0;
    element.hasInitializer = (byte & _hasInitializer) != 0;
    element.isExternal = (byte & _isExternal) != 0;
    element.isFinal = (byte & _isFinal) != 0;
    element.isLate = (byte & _isLate) != 0;
  }

  static void write(BufferedSink sink, TopLevelVariableElementImpl element) {
    var result = 0;
    result |= element.hasImplicitType ? _hasImplicitType : 0;
    result |= element.hasInitializer ? _hasInitializer : 0;
    result |= element.isExternal ? _isExternal : 0;
    result |= element.isFinal ? _isFinal : 0;
    result |= element.isLate ? _isLate : 0;
    sink.writeByte(result);
  }
}

class TypeAliasElementFlags {
  static const int _hasSelfReference = 1 << 1;
  static const int _isSimplyBounded = 1 << 2;

  static void read(SummaryDataReader reader, TypeAliasElementImpl element) {
    var byte = reader.readByte();
    element.hasSelfReference = (byte & _hasSelfReference) != 0;
    element.isSimplyBounded = (byte & _isSimplyBounded) != 0;
  }

  static void write(BufferedSink sink, TypeAliasElementImpl element) {
    var result = 0;
    result |= element.hasSelfReference ? _hasSelfReference : 0;
    result |= element.isSimplyBounded ? _isSimplyBounded : 0;
    sink.writeByte(result);
  }
}