Alexander Markov
6b65dcbcf6
Change-Id: I038ba92c7bc210568d817ebaa109ca0ad02550e1 Reviewed-on: https://dart-review.googlesource.com/52988 Commit-Queue: Alexander Markov <alexmarkov@google.com> Reviewed-by: Régis Crelier <regis@google.com> Reviewed-by: Zach Anderson <zra@google.com>
2113 lines
72 KiB
Dart
2113 lines
72 KiB
Dart
// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library kernel.ast_from_binary;
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import 'dart:core' hide MapEntry;
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import 'dart:convert';
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import 'dart:typed_data';
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import '../ast.dart';
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import '../transformations/flags.dart';
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import 'tag.dart';
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class ParseError {
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String filename;
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int byteIndex;
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String message;
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String path;
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ParseError(this.message, {this.filename, this.byteIndex, this.path});
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String toString() => '$filename:$byteIndex: $message at $path';
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}
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class _ComponentIndex {
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static const numberOfFixedFields = 9;
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int binaryOffsetForSourceTable;
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int binaryOffsetForCanonicalNames;
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int binaryOffsetForMetadataPayloads;
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int binaryOffsetForMetadataMappings;
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int binaryOffsetForStringTable;
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int binaryOffsetForConstantTable;
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int mainMethodReference;
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List<int> libraryOffsets;
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int libraryCount;
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int componentFileSizeInBytes;
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}
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class BinaryBuilder {
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final List<VariableDeclaration> variableStack = <VariableDeclaration>[];
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final List<LabeledStatement> labelStack = <LabeledStatement>[];
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int labelStackBase = 0;
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final List<SwitchCase> switchCaseStack = <SwitchCase>[];
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final List<TypeParameter> typeParameterStack = <TypeParameter>[];
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final String filename;
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final List<int> _bytes;
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int _byteOffset = 0;
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final List<String> _stringTable = <String>[];
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final List<Uri> _sourceUriTable = <Uri>[];
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List<Constant> _constantTable;
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List<CanonicalName> _linkTable;
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int _transformerFlags = 0;
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Library _currentLibrary;
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int _componentStartOffset = 0;
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// If something goes wrong, this list should indicate what library,
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// class, and member was being built.
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List<String> debugPath = <String>[];
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bool _isReadingLibraryImplementation = false;
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/// If binary contains metadata section with payloads referencing other nodes
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/// such Kernel binary can't be read lazily because metadata cross references
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/// will not be resolved correctly.
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bool _disableLazyReading = false;
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BinaryBuilder(this._bytes, {this.filename, disableLazyReading = false})
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: _disableLazyReading = disableLazyReading;
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fail(String message) {
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throw new ParseError(message,
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byteIndex: _byteOffset, filename: filename, path: debugPath.join('::'));
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}
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int get byteOffset => _byteOffset;
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int readByte() => _bytes[_byteOffset++];
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int readUInt() {
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var byte = readByte();
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if (byte & 0x80 == 0) {
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// 0xxxxxxx
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return byte;
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} else if (byte & 0x40 == 0) {
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// 10xxxxxx
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return ((byte & 0x3F) << 8) | readByte();
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} else {
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// 11xxxxxx
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return ((byte & 0x3F) << 24) |
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(readByte() << 16) |
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(readByte() << 8) |
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readByte();
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}
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}
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int readUint32() {
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return (readByte() << 24) |
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(readByte() << 16) |
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(readByte() << 8) |
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readByte();
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}
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final Float64List _doubleBuffer = new Float64List(1);
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Uint8List _doubleBufferUint8;
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double readDouble() {
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_doubleBufferUint8 ??= _doubleBuffer.buffer.asUint8List();
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_doubleBufferUint8[0] = readByte();
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_doubleBufferUint8[1] = readByte();
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_doubleBufferUint8[2] = readByte();
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_doubleBufferUint8[3] = readByte();
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_doubleBufferUint8[4] = readByte();
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_doubleBufferUint8[5] = readByte();
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_doubleBufferUint8[6] = readByte();
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_doubleBufferUint8[7] = readByte();
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return _doubleBuffer[0];
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}
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List<int> readByteList() {
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List<int> bytes = new Uint8List(readUInt());
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bytes.setRange(0, bytes.length, _bytes, _byteOffset);
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_byteOffset += bytes.length;
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return bytes;
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}
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String readStringEntry(int numBytes) {
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// Utf8Decoder will skip leading BOM characters, but we must preserve them.
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// Collect leading BOMs before passing the bytes onto Utf8Decoder.
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int numByteOrderMarks = 0;
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while (_byteOffset + 2 < _bytes.length &&
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_bytes[_byteOffset] == 0xef &&
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_bytes[_byteOffset + 1] == 0xbb &&
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_bytes[_byteOffset + 2] == 0xbf) {
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++numByteOrderMarks;
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_byteOffset += 3;
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numBytes -= 3;
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}
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String string = const Utf8Decoder()
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.convert(_bytes, _byteOffset, _byteOffset + numBytes);
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_byteOffset += numBytes;
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if (numByteOrderMarks > 0) {
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return '\ufeff' * numByteOrderMarks + string;
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}
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return string;
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}
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/// Read metadataMappings section from the binary.
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void _readMetadataMappings(
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Component component, int binaryOffsetForMetadataPayloads) {
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// Default reader ignores metadata section entirely.
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}
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/// Reads metadata for the given [node].
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Node _associateMetadata(Node node, int nodeOffset) {
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// Default reader ignores metadata section entirely.
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return node;
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}
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void readStringTable(List<String> table) {
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// Read the table of end offsets.
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int length = readUInt();
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List<int> endOffsets = new List<int>(length);
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for (int i = 0; i < length; ++i) {
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endOffsets[i] = readUInt();
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}
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// Read the UTF-8 encoded strings.
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table.length = length;
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int startOffset = 0;
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for (int i = 0; i < length; ++i) {
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table[i] = readStringEntry(endOffsets[i] - startOffset);
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startOffset = endOffsets[i];
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}
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}
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void readConstantTable() {
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final int length = readUInt();
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_constantTable = new List<Constant>(length);
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for (int i = 0; i < length; i++) {
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_constantTable[i] = readConstantTableEntry();
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}
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}
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Constant readConstantTableEntry() {
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final int constantTag = readByte();
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switch (constantTag) {
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case ConstantTag.NullConstant:
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return new NullConstant();
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case ConstantTag.BoolConstant:
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return new BoolConstant(readByte() == 1);
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case ConstantTag.IntConstant:
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return new IntConstant((readExpression() as IntLiteral).value);
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case ConstantTag.DoubleConstant:
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return new DoubleConstant(readDouble());
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case ConstantTag.StringConstant:
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return new StringConstant(readStringReference());
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case ConstantTag.MapConstant:
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final DartType keyType = readDartType();
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final DartType valueType = readDartType();
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final int length = readUInt();
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final List<ConstantMapEntry> entries =
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new List<ConstantMapEntry>.filled(length, null, growable: true);
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for (int i = 0; i < length; i++) {
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final Constant key = readConstantReference();
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final Constant value = readConstantReference();
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entries[i] = new ConstantMapEntry(key, value);
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}
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return new MapConstant(keyType, valueType, entries);
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case ConstantTag.ListConstant:
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final DartType typeArgument = readDartType();
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final int length = readUInt();
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final List<Constant> entries =
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new List<Constant>.filled(length, null, growable: true);
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for (int i = 0; i < length; i++) {
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entries[i] = readConstantReference();
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}
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return new ListConstant(typeArgument, entries);
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case ConstantTag.InstanceConstant:
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final Reference classReference = readClassReference();
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final int typeArgumentCount = readUInt();
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final List<DartType> typeArguments =
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new List<DartType>.filled(typeArgumentCount, null, growable: true);
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for (int i = 0; i < typeArgumentCount; i++) {
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typeArguments[i] = readDartType();
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}
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final int fieldValueCount = readUInt();
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final Map<Reference, Constant> fieldValues = <Reference, Constant>{};
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for (int i = 0; i < fieldValueCount; i++) {
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final Reference fieldRef =
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readCanonicalNameReference().getReference();
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final Constant constant = readConstantReference();
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fieldValues[fieldRef] = constant;
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}
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return new InstanceConstant(classReference, typeArguments, fieldValues);
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case ConstantTag.PartialInstantiationConstant:
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final tearOffConstant = readConstantReference() as TearOffConstant;
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final int length = readUInt();
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final List<DartType> types = new List<DartType>(length);
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for (int i = 0; i < length; i++) {
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types[i] = readDartType();
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}
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return new PartialInstantiationConstant(tearOffConstant, types);
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case ConstantTag.TearOffConstant:
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final Reference reference = readCanonicalNameReference().getReference();
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return new TearOffConstant.byReference(reference);
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case ConstantTag.TypeLiteralConstant:
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final DartType type = readDartType();
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return new TypeLiteralConstant(type);
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}
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throw 'Invalid constant tag $constantTag';
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}
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Constant readConstantReference() {
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final int index = readUInt();
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Constant constant = _constantTable[index];
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assert(constant != null);
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return constant;
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}
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Uri readUriReference() {
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return _sourceUriTable[readUInt()];
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}
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String readStringReference() {
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return _stringTable[readUInt()];
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}
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List<String> readStringReferenceList() {
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int length = readUInt();
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List<String> result = new List<String>.filled(length, null, growable: true);
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for (int i = 0; i < length; ++i) {
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result[i] = readStringReference();
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}
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return result;
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}
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String readStringOrNullIfEmpty() {
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var string = readStringReference();
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return string.isEmpty ? null : string;
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}
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bool readAndCheckOptionTag() {
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int tag = readByte();
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if (tag == Tag.Nothing) {
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return false;
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} else if (tag == Tag.Something) {
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return true;
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} else {
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throw fail('Invalid Option tag: $tag');
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}
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}
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List<Expression> readAnnotationList(TreeNode parent) {
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int length = readUInt();
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if (length == 0) return const <Expression>[];
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List<Expression> list =
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new List<Expression>.filled(length, null, growable: true);
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for (int i = 0; i < length; ++i) {
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list[i] = readExpression()..parent = parent;
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}
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return list;
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}
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void _fillTreeNodeList(
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List<TreeNode> list, TreeNode buildObject(int index), TreeNode parent) {
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var length = readUInt();
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list.length = length;
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for (int i = 0; i < length; ++i) {
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TreeNode object = buildObject(i);
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list[i] = object..parent = parent;
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}
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}
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void _fillNonTreeNodeList(List<Node> list, Node buildObject()) {
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var length = readUInt();
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list.length = length;
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for (int i = 0; i < length; ++i) {
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Node object = buildObject();
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list[i] = object;
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}
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}
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void _skipNodeList(Node skipObject()) {
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var length = readUInt();
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for (int i = 0; i < length; ++i) {
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skipObject();
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}
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}
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/// Reads a list of named nodes, reusing any existing objects already in the
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/// linking tree. The nodes are merged into [list], and if reading the library
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/// implementation, the order is corrected.
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///
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/// [readObject] should read the object definition and its canonical name.
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/// If an existing object is bound to the canonical name, the existing object
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/// must be reused and returned.
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void _mergeNamedNodeList(
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List<NamedNode> list, NamedNode readObject(int index), TreeNode parent) {
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if (_isReadingLibraryImplementation) {
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// When reading the library implementation, overwrite the whole list
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// with the new one.
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_fillTreeNodeList(list, readObject, parent);
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} else {
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// When reading an external library, the results should either be:
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// - merged with the existing external library definition (if any)
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// - ignored if the library implementation is already in memory
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int numberOfNodes = readUInt();
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for (int i = 0; i < numberOfNodes; ++i) {
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var value = readObject(i);
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// We use the parent pointer of a node to determine if it already is in
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// the AST and hence should not be added again.
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if (value.parent == null) {
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list.add(value..parent = parent);
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}
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}
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}
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}
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void readLinkTable(CanonicalName linkRoot) {
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int length = readUInt();
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_linkTable = new List<CanonicalName>(length);
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for (int i = 0; i < length; ++i) {
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int biasedParentIndex = readUInt();
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String name = readStringReference();
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var parent =
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biasedParentIndex == 0 ? linkRoot : _linkTable[biasedParentIndex - 1];
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_linkTable[i] = parent.getChild(name);
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}
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}
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List<int> _indexComponents() {
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int savedByteOffset = _byteOffset;
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_byteOffset = _bytes.length - 4;
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List<int> index = <int>[];
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while (_byteOffset > 0) {
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int size = readUint32();
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int start = _byteOffset - size;
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if (start < 0) throw "Invalid component file: Indicated size is invalid.";
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index.add(size);
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_byteOffset = start - 4;
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}
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_byteOffset = savedByteOffset;
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return new List.from(index.reversed);
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}
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/// Deserializes a kernel component and stores it in [component].
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///
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/// When linking with a non-empty component, canonical names must have been
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/// computed ahead of time.
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///
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/// The input bytes may contain multiple files concatenated.
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void readComponent(Component component) {
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List<int> componentFileSizes = _indexComponents();
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if (componentFileSizes.length > 1) {
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_disableLazyReading = true;
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}
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int componentFileIndex = 0;
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while (_byteOffset < _bytes.length) {
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_readOneComponent(component, componentFileSizes[componentFileIndex]);
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++componentFileIndex;
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}
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}
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/// Reads a single component file from the input and loads it into [component],
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/// overwriting and reusing any existing data in the component.
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///
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/// When linking with a non-empty component, canonical names must have been
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/// computed ahead of time.
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///
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/// This should *only* be used when there is a reason to not allow
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/// concatenated files.
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void readSingleFileComponent(Component component) {
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List<int> componentFileSizes = _indexComponents();
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if (componentFileSizes.isEmpty) throw "Invalid component data.";
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_readOneComponent(component, componentFileSizes[0]);
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if (_byteOffset < _bytes.length) {
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if (_byteOffset + 3 < _bytes.length) {
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int magic = readUint32();
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if (magic == Tag.ComponentFile) {
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throw 'Concatenated component file given when a single component '
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'was expected.';
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}
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}
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throw 'Unrecognized bytes following component data';
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}
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}
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_ComponentIndex _readComponentIndex(int componentFileSize) {
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int savedByteIndex = _byteOffset;
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_ComponentIndex result = new _ComponentIndex();
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// There are two fields: file size and library count.
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_byteOffset = _componentStartOffset + componentFileSize - (2) * 4;
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result.libraryCount = readUint32();
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// Library offsets are used for start and end offsets, so there is one extra
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// element that this the end offset of the last library
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result.libraryOffsets = new List<int>(result.libraryCount + 1);
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result.componentFileSizeInBytes = readUint32();
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if (result.componentFileSizeInBytes != componentFileSize) {
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throw 'Malformed binary: This component file\'s component index indicates that'
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' the filesize should be $componentFileSize but other component indexes'
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' has indicated that the size should be '
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'${result.componentFileSizeInBytes}.';
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}
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// Skip to the start of the index.
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_byteOffset -=
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((result.libraryCount + 1) + _ComponentIndex.numberOfFixedFields) * 4;
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// Now read the component index.
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result.binaryOffsetForSourceTable = _componentStartOffset + readUint32();
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result.binaryOffsetForCanonicalNames = _componentStartOffset + readUint32();
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result.binaryOffsetForMetadataPayloads =
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_componentStartOffset + readUint32();
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result.binaryOffsetForMetadataMappings =
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_componentStartOffset + readUint32();
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result.binaryOffsetForStringTable = _componentStartOffset + readUint32();
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result.binaryOffsetForConstantTable = _componentStartOffset + readUint32();
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result.mainMethodReference = readUint32();
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for (int i = 0; i < result.libraryCount + 1; ++i) {
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result.libraryOffsets[i] = _componentStartOffset + readUint32();
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}
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_byteOffset = savedByteIndex;
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return result;
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}
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void _readOneComponent(Component component, int componentFileSize) {
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_componentStartOffset = _byteOffset;
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final int magic = readUint32();
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if (magic != Tag.ComponentFile) {
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throw fail('This is not a binary dart file. '
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'Magic number was: ${magic.toRadixString(16)}');
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}
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final int formatVersion = readUint32();
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if (formatVersion != Tag.BinaryFormatVersion) {
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throw fail('Invalid kernel binary format version '
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'(found ${formatVersion}, expected ${Tag.BinaryFormatVersion})');
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}
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// Read component index from the end of this ComponentFiles serialized data.
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_ComponentIndex index = _readComponentIndex(componentFileSize);
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_byteOffset = index.binaryOffsetForStringTable;
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readStringTable(_stringTable);
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_byteOffset = index.binaryOffsetForCanonicalNames;
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readLinkTable(component.root);
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// TODO(alexmarkov): reverse metadata mappings and read forwards
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_byteOffset = index.binaryOffsetForStringTable; // Read backwards.
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_readMetadataMappings(component, index.binaryOffsetForMetadataPayloads);
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_byteOffset = index.binaryOffsetForSourceTable;
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Map<Uri, Source> uriToSource = readUriToSource();
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component.uriToSource.addAll(uriToSource);
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_byteOffset = index.binaryOffsetForConstantTable;
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readConstantTable();
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int numberOfLibraries = index.libraryCount;
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for (int i = 0; i < numberOfLibraries; ++i) {
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_byteOffset = index.libraryOffsets[i];
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readLibrary(component, index.libraryOffsets[i + 1]);
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}
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var mainMethod =
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getMemberReferenceFromInt(index.mainMethodReference, allowNull: true);
|
|
component.mainMethodName ??= mainMethod;
|
|
|
|
_associateMetadata(component, _componentStartOffset);
|
|
|
|
_byteOffset = _componentStartOffset + componentFileSize;
|
|
}
|
|
|
|
Map<Uri, Source> readUriToSource() {
|
|
int length = readUint32();
|
|
|
|
// Read data.
|
|
_sourceUriTable.length = length;
|
|
Map<Uri, Source> uriToSource = <Uri, Source>{};
|
|
for (int i = 0; i < length; ++i) {
|
|
List<int> uriBytes = readByteList();
|
|
Uri uri = uriBytes.isEmpty
|
|
? null
|
|
: Uri.parse(const Utf8Decoder().convert(uriBytes));
|
|
_sourceUriTable[i] = uri;
|
|
List<int> sourceCode = readByteList();
|
|
int lineCount = readUInt();
|
|
List<int> lineStarts = new List<int>(lineCount);
|
|
int previousLineStart = 0;
|
|
for (int j = 0; j < lineCount; ++j) {
|
|
int lineStart = readUInt() + previousLineStart;
|
|
lineStarts[j] = lineStart;
|
|
previousLineStart = lineStart;
|
|
}
|
|
uriToSource[uri] = new Source(lineStarts, sourceCode);
|
|
}
|
|
|
|
// Read index.
|
|
for (int i = 0; i < length; ++i) {
|
|
readUint32();
|
|
}
|
|
return uriToSource;
|
|
}
|
|
|
|
CanonicalName readCanonicalNameReference() {
|
|
var index = readUInt();
|
|
if (index == 0) return null;
|
|
return _linkTable[index - 1];
|
|
}
|
|
|
|
CanonicalName getCanonicalNameReferenceFromInt(int index) {
|
|
if (index == 0) return null;
|
|
return _linkTable[index - 1];
|
|
}
|
|
|
|
Reference readLibraryReference() {
|
|
return readCanonicalNameReference().getReference();
|
|
}
|
|
|
|
LibraryDependency readLibraryDependencyReference() {
|
|
int index = readUInt();
|
|
return _currentLibrary.dependencies[index];
|
|
}
|
|
|
|
Reference readClassReference({bool allowNull: false}) {
|
|
var name = readCanonicalNameReference();
|
|
if (name == null && !allowNull) {
|
|
throw 'Expected a class reference to be valid but was `null`.';
|
|
}
|
|
return name?.getReference();
|
|
}
|
|
|
|
Reference readMemberReference({bool allowNull: false}) {
|
|
var name = readCanonicalNameReference();
|
|
if (name == null && !allowNull) {
|
|
throw 'Expected a member reference to be valid but was `null`.';
|
|
}
|
|
return name?.getReference();
|
|
}
|
|
|
|
Reference getMemberReferenceFromInt(int index, {bool allowNull: false}) {
|
|
var name = getCanonicalNameReferenceFromInt(index);
|
|
if (name == null && !allowNull) {
|
|
throw 'Expected a member reference to be valid but was `null`.';
|
|
}
|
|
return name?.getReference();
|
|
}
|
|
|
|
Reference readTypedefReference() {
|
|
return readCanonicalNameReference()?.getReference();
|
|
}
|
|
|
|
Name readName() {
|
|
String text = readStringReference();
|
|
if (text.isNotEmpty && text[0] == '_') {
|
|
return new Name.byReference(text, readLibraryReference());
|
|
} else {
|
|
return new Name(text);
|
|
}
|
|
}
|
|
|
|
Library readLibrary(Component component, int endOffset) {
|
|
// Read index.
|
|
int savedByteOffset = _byteOffset;
|
|
|
|
// There is a field for the procedure count.
|
|
_byteOffset = endOffset - (1) * 4;
|
|
int procedureCount = readUint32();
|
|
List<int> procedureOffsets = new List<int>(procedureCount + 1);
|
|
|
|
// There is a field for the procedure count, that number + 1 (for the end)
|
|
// offsets, and then the class count (i.e. procedure count + 3 fields).
|
|
_byteOffset = endOffset - (procedureCount + 3) * 4;
|
|
int classCount = readUint32();
|
|
for (int i = 0; i < procedureCount + 1; i++) {
|
|
procedureOffsets[i] = _componentStartOffset + readUint32();
|
|
}
|
|
List<int> classOffsets = new List<int>(classCount + 1);
|
|
|
|
// There is a field for the procedure count, that number + 1 (for the end)
|
|
// offsets, then the class count and that number + 1 (for the end) offsets.
|
|
// (i.e. procedure count + class count + 4 fields).
|
|
_byteOffset = endOffset - (procedureCount + classCount + 4) * 4;
|
|
for (int i = 0; i < classCount + 1; i++) {
|
|
classOffsets[i] = _componentStartOffset + readUint32();
|
|
}
|
|
_byteOffset = savedByteOffset;
|
|
|
|
int flags = readByte();
|
|
bool isExternal = (flags & 0x1) != 0;
|
|
_isReadingLibraryImplementation = !isExternal;
|
|
var canonicalName = readCanonicalNameReference();
|
|
Reference reference = canonicalName.getReference();
|
|
Library library = reference.node;
|
|
bool shouldWriteData = library == null || _isReadingLibraryImplementation;
|
|
if (library == null) {
|
|
library =
|
|
new Library(Uri.parse(canonicalName.name), reference: reference);
|
|
component.libraries.add(library..parent = component);
|
|
}
|
|
_currentLibrary = library;
|
|
String name = readStringOrNullIfEmpty();
|
|
|
|
// TODO(jensj): We currently save (almost the same) uri twice.
|
|
Uri fileUri = readUriReference();
|
|
|
|
if (shouldWriteData) {
|
|
library.isExternal = isExternal;
|
|
library.name = name;
|
|
library.fileUri = fileUri;
|
|
}
|
|
|
|
assert(() {
|
|
debugPath.add(library.name ?? library.importUri?.toString() ?? 'library');
|
|
return true;
|
|
}());
|
|
|
|
if (shouldWriteData) {
|
|
_fillTreeNodeList(
|
|
library.annotations, (index) => readExpression(), library);
|
|
} else {
|
|
_skipNodeList(readExpression);
|
|
}
|
|
_readLibraryDependencies(library);
|
|
_readAdditionalExports(library);
|
|
_readLibraryParts(library);
|
|
_mergeNamedNodeList(library.typedefs, (index) => readTypedef(), library);
|
|
|
|
_mergeNamedNodeList(library.classes, (index) {
|
|
_byteOffset = classOffsets[index];
|
|
return readClass(classOffsets[index + 1]);
|
|
}, library);
|
|
_byteOffset = classOffsets.last;
|
|
_mergeNamedNodeList(library.fields, (index) => readField(), library);
|
|
_mergeNamedNodeList(library.procedures, (index) {
|
|
_byteOffset = procedureOffsets[index];
|
|
return readProcedure(procedureOffsets[index + 1]);
|
|
}, library);
|
|
_byteOffset = procedureOffsets.last;
|
|
|
|
assert(((_) => true)(debugPath.removeLast()));
|
|
_currentLibrary = null;
|
|
return library;
|
|
}
|
|
|
|
void _readLibraryDependencies(Library library) {
|
|
int length = readUInt();
|
|
library.dependencies.length = length;
|
|
for (int i = 0; i < length; ++i) {
|
|
library.dependencies[i] = readLibraryDependency(library);
|
|
}
|
|
}
|
|
|
|
LibraryDependency readLibraryDependency(Library library) {
|
|
var fileOffset = readOffset();
|
|
var flags = readByte();
|
|
var annotations = readExpressionList();
|
|
var targetLibrary = readLibraryReference();
|
|
var prefixName = readStringOrNullIfEmpty();
|
|
var names = readCombinatorList();
|
|
return new LibraryDependency.byReference(
|
|
flags, annotations, targetLibrary, prefixName, names)
|
|
..fileOffset = fileOffset
|
|
..parent = library;
|
|
}
|
|
|
|
void _readAdditionalExports(Library library) {
|
|
int numExportedReference = readUInt();
|
|
if (numExportedReference != 0) {
|
|
for (int i = 0; i < numExportedReference; i++) {
|
|
CanonicalName exportedName = readCanonicalNameReference();
|
|
Reference reference = exportedName.getReference();
|
|
library.additionalExports.add(reference);
|
|
}
|
|
}
|
|
}
|
|
|
|
Combinator readCombinator() {
|
|
var isShow = readByte() == 1;
|
|
var names = readStringReferenceList();
|
|
return new Combinator(isShow, names);
|
|
}
|
|
|
|
List<Combinator> readCombinatorList() {
|
|
int length = readUInt();
|
|
List<Combinator> result =
|
|
new List<Combinator>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readCombinator();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
void _readLibraryParts(Library library) {
|
|
int length = readUInt();
|
|
library.parts.length = length;
|
|
for (int i = 0; i < length; ++i) {
|
|
library.parts[i] = readLibraryPart(library);
|
|
}
|
|
}
|
|
|
|
LibraryPart readLibraryPart(Library library) {
|
|
List<Expression> annotations = readExpressionList();
|
|
String partUri = readStringReference();
|
|
return new LibraryPart(annotations, partUri)..parent = library;
|
|
}
|
|
|
|
Typedef readTypedef() {
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
Typedef node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new Typedef(null, null, reference: reference);
|
|
}
|
|
Uri fileUri = readUriReference();
|
|
int fileOffset = readOffset();
|
|
String name = readStringReference();
|
|
node.annotations = readAnnotationList(node);
|
|
readAndPushTypeParameterList(node.typeParameters, node);
|
|
var type = readDartType();
|
|
typeParameterStack.length = 0;
|
|
if (shouldWriteData) {
|
|
node.fileOffset = fileOffset;
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.type = type;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
Class readClass(int endOffset) {
|
|
int tag = readByte();
|
|
assert(tag == Tag.Class);
|
|
|
|
// Read index.
|
|
int savedByteOffset = _byteOffset;
|
|
// There is a field for the procedure count.
|
|
_byteOffset = endOffset - (1) * 4;
|
|
int procedureCount = readUint32();
|
|
List<int> procedureOffsets = new List<int>(procedureCount + 1);
|
|
// There is a field for the procedure count, that number + 1 (for the end)
|
|
// offsets (i.e. procedure count + 2 fields).
|
|
_byteOffset = endOffset - (procedureCount + 2) * 4;
|
|
for (int i = 0; i < procedureCount + 1; i++) {
|
|
procedureOffsets[i] = _componentStartOffset + readUint32();
|
|
}
|
|
_byteOffset = savedByteOffset;
|
|
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
Class node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new Class(reference: reference)..level = ClassLevel.Temporary;
|
|
}
|
|
|
|
var fileUri = readUriReference();
|
|
node.fileOffset = readOffset();
|
|
node.fileEndOffset = readOffset();
|
|
int flags = readByte();
|
|
node.isAbstract = flags & 0x1 != 0;
|
|
node.isEnum = flags & 0x2 != 0;
|
|
node.isSyntheticMixinImplementation = flags & 0x4 != 0;
|
|
int levelIndex = (flags >> 3) & 0x3;
|
|
var level = ClassLevel.values[levelIndex + 1];
|
|
if (level.index >= node.level.index) {
|
|
node.level = level;
|
|
}
|
|
var name = readStringOrNullIfEmpty();
|
|
var annotations = readAnnotationList(node);
|
|
assert(() {
|
|
debugPath.add(node.name ?? 'normal-class');
|
|
return true;
|
|
}());
|
|
readAndPushTypeParameterList(node.typeParameters, node);
|
|
var supertype = readSupertypeOption();
|
|
var mixedInType = readSupertypeOption();
|
|
if (shouldWriteData) {
|
|
_fillNonTreeNodeList(node.implementedTypes, readSupertype);
|
|
} else {
|
|
_skipNodeList(readSupertype);
|
|
}
|
|
_mergeNamedNodeList(node.fields, (index) => readField(), node);
|
|
_mergeNamedNodeList(node.constructors, (index) => readConstructor(), node);
|
|
|
|
_mergeNamedNodeList(node.procedures, (index) {
|
|
_byteOffset = procedureOffsets[index];
|
|
return readProcedure(procedureOffsets[index + 1]);
|
|
}, node);
|
|
_byteOffset = procedureOffsets.last;
|
|
_mergeNamedNodeList(node.redirectingFactoryConstructors,
|
|
(index) => readRedirectingFactoryConstructor(), node);
|
|
typeParameterStack.length = 0;
|
|
assert(debugPath.removeLast() != null);
|
|
if (shouldWriteData) {
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.annotations = annotations;
|
|
node.supertype = supertype;
|
|
node.mixedInType = mixedInType;
|
|
}
|
|
|
|
_byteOffset = endOffset;
|
|
|
|
return node;
|
|
}
|
|
|
|
int getAndResetTransformerFlags() {
|
|
int flags = _transformerFlags;
|
|
_transformerFlags = 0;
|
|
return flags;
|
|
}
|
|
|
|
/// Adds the given flag to the current [Member.transformerFlags].
|
|
void addTransformerFlag(int flags) {
|
|
_transformerFlags |= flags;
|
|
}
|
|
|
|
Field readField() {
|
|
int tag = readByte();
|
|
assert(tag == Tag.Field);
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
Field node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new Field(null, reference: reference);
|
|
}
|
|
var fileUri = readUriReference();
|
|
int fileOffset = readOffset();
|
|
int fileEndOffset = readOffset();
|
|
int flags = readByte();
|
|
var name = readName();
|
|
var annotations = readAnnotationList(node);
|
|
assert(() {
|
|
debugPath.add(node.name?.name ?? 'field');
|
|
return true;
|
|
}());
|
|
var type = readDartType();
|
|
var initializer = readExpressionOption();
|
|
int transformerFlags = getAndResetTransformerFlags();
|
|
assert(((_) => true)(debugPath.removeLast()));
|
|
if (shouldWriteData) {
|
|
node.fileOffset = fileOffset;
|
|
node.fileEndOffset = fileEndOffset;
|
|
node.flags = flags;
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.annotations = annotations;
|
|
node.type = type;
|
|
node.initializer = initializer;
|
|
node.initializer?.parent = node;
|
|
node.transformerFlags = transformerFlags;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
Constructor readConstructor() {
|
|
int tag = readByte();
|
|
assert(tag == Tag.Constructor);
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
Constructor node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new Constructor(null, reference: reference);
|
|
}
|
|
var fileUri = readUriReference();
|
|
var fileOffset = readOffset();
|
|
var fileEndOffset = readOffset();
|
|
var flags = readByte();
|
|
var name = readName();
|
|
var annotations = readAnnotationList(node);
|
|
assert(() {
|
|
debugPath.add(node.name?.name ?? 'constructor');
|
|
return true;
|
|
}());
|
|
var function = readFunctionNode();
|
|
pushVariableDeclarations(function.positionalParameters);
|
|
pushVariableDeclarations(function.namedParameters);
|
|
if (shouldWriteData) {
|
|
_fillTreeNodeList(node.initializers, (index) => readInitializer(), node);
|
|
} else {
|
|
_skipNodeList(readInitializer);
|
|
}
|
|
variableStack.length = 0;
|
|
var transformerFlags = getAndResetTransformerFlags();
|
|
assert(((_) => true)(debugPath.removeLast()));
|
|
if (shouldWriteData) {
|
|
node.fileOffset = fileOffset;
|
|
node.fileEndOffset = fileEndOffset;
|
|
node.flags = flags;
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.annotations = annotations;
|
|
node.function = function..parent = node;
|
|
node.transformerFlags = transformerFlags;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
Procedure readProcedure(int endOffset) {
|
|
int tag = readByte();
|
|
assert(tag == Tag.Procedure);
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
Procedure node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new Procedure(null, null, null, reference: reference);
|
|
}
|
|
var fileUri = readUriReference();
|
|
var fileOffset = readOffset();
|
|
var fileEndOffset = readOffset();
|
|
int kindIndex = readByte();
|
|
var kind = ProcedureKind.values[kindIndex];
|
|
var flags = readByte();
|
|
var name = readName();
|
|
var annotations = readAnnotationList(node);
|
|
assert(() {
|
|
debugPath.add(node.name?.name ?? 'procedure');
|
|
return true;
|
|
}());
|
|
int functionNodeSize = endOffset - _byteOffset;
|
|
// Read small factories up front. Postpone everything else.
|
|
bool readFunctionNodeNow =
|
|
(kind == ProcedureKind.Factory && functionNodeSize <= 50) ||
|
|
_disableLazyReading;
|
|
var forwardingStubSuperTargetReference =
|
|
readAndCheckOptionTag() ? readMemberReference() : null;
|
|
var forwardingStubInterfaceTargetReference =
|
|
readAndCheckOptionTag() ? readMemberReference() : null;
|
|
var function = readFunctionNodeOption(!readFunctionNodeNow, endOffset);
|
|
var transformerFlags = getAndResetTransformerFlags();
|
|
assert(((_) => true)(debugPath.removeLast()));
|
|
if (shouldWriteData) {
|
|
node.fileOffset = fileOffset;
|
|
node.fileEndOffset = fileEndOffset;
|
|
node.kind = kind;
|
|
node.flags = flags;
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.annotations = annotations;
|
|
node.function = function;
|
|
function?.parent = node;
|
|
node.setTransformerFlagsWithoutLazyLoading(transformerFlags);
|
|
node.forwardingStubSuperTargetReference =
|
|
forwardingStubSuperTargetReference;
|
|
node.forwardingStubInterfaceTargetReference =
|
|
forwardingStubInterfaceTargetReference;
|
|
|
|
assert((node.forwardingStubSuperTargetReference != null) ||
|
|
!(node.isForwardingStub && node.function.body != null));
|
|
}
|
|
_byteOffset = endOffset;
|
|
return node;
|
|
}
|
|
|
|
RedirectingFactoryConstructor readRedirectingFactoryConstructor() {
|
|
int tag = readByte();
|
|
assert(tag == Tag.RedirectingFactoryConstructor);
|
|
var canonicalName = readCanonicalNameReference();
|
|
var reference = canonicalName.getReference();
|
|
RedirectingFactoryConstructor node = reference.node;
|
|
bool shouldWriteData = node == null || _isReadingLibraryImplementation;
|
|
if (node == null) {
|
|
node = new RedirectingFactoryConstructor(null, reference: reference);
|
|
}
|
|
var fileUri = readUriReference();
|
|
var fileOffset = readOffset();
|
|
var fileEndOffset = readOffset();
|
|
var flags = readByte();
|
|
var name = readName();
|
|
var annotations = readAnnotationList(node);
|
|
debugPath.add(node.name?.name ?? 'redirecting-factory-constructor');
|
|
var targetReference = readMemberReference();
|
|
var typeArguments = readDartTypeList();
|
|
int typeParameterStackHeight = typeParameterStack.length;
|
|
var typeParameters = readAndPushTypeParameterList();
|
|
readUInt(); // Total parameter count.
|
|
var requiredParameterCount = readUInt();
|
|
int variableStackHeight = variableStack.length;
|
|
var positional = readAndPushVariableDeclarationList();
|
|
var named = readAndPushVariableDeclarationList();
|
|
variableStack.length = variableStackHeight;
|
|
typeParameterStack.length = typeParameterStackHeight;
|
|
debugPath.removeLast();
|
|
if (shouldWriteData) {
|
|
node.fileOffset = fileOffset;
|
|
node.fileEndOffset = fileEndOffset;
|
|
node.flags = flags;
|
|
node.name = name;
|
|
node.fileUri = fileUri;
|
|
node.annotations = annotations;
|
|
node.targetReference = targetReference;
|
|
node.typeArguments.addAll(typeArguments);
|
|
node.typeParameters = typeParameters;
|
|
node.requiredParameterCount = requiredParameterCount;
|
|
node.positionalParameters = positional;
|
|
node.namedParameters = named;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
Initializer readInitializer() {
|
|
int tag = readByte();
|
|
bool isSynthetic = readByte() == 1;
|
|
switch (tag) {
|
|
case Tag.InvalidInitializer:
|
|
return new InvalidInitializer();
|
|
case Tag.FieldInitializer:
|
|
var reference = readMemberReference();
|
|
var value = readExpression();
|
|
return new FieldInitializer.byReference(reference, value)
|
|
..isSynthetic = isSynthetic;
|
|
case Tag.SuperInitializer:
|
|
var reference = readMemberReference();
|
|
var arguments = readArguments();
|
|
return new SuperInitializer.byReference(reference, arguments)
|
|
..isSynthetic = isSynthetic;
|
|
case Tag.RedirectingInitializer:
|
|
return new RedirectingInitializer.byReference(
|
|
readMemberReference(), readArguments());
|
|
case Tag.LocalInitializer:
|
|
return new LocalInitializer(readAndPushVariableDeclaration());
|
|
case Tag.AssertInitializer:
|
|
return new AssertInitializer(readStatement());
|
|
default:
|
|
throw fail('Invalid initializer tag: $tag');
|
|
}
|
|
}
|
|
|
|
FunctionNode readFunctionNodeOption(bool lazyLoadBody, int outerEndOffset) {
|
|
return readAndCheckOptionTag()
|
|
? readFunctionNode(
|
|
lazyLoadBody: lazyLoadBody, outerEndOffset: outerEndOffset)
|
|
: null;
|
|
}
|
|
|
|
FunctionNode readFunctionNode(
|
|
{bool lazyLoadBody: false, int outerEndOffset: -1}) {
|
|
int tag = readByte();
|
|
assert(tag == Tag.FunctionNode);
|
|
int offset = readOffset();
|
|
int endOffset = readOffset();
|
|
AsyncMarker asyncMarker = AsyncMarker.values[readByte()];
|
|
AsyncMarker dartAsyncMarker = AsyncMarker.values[readByte()];
|
|
int typeParameterStackHeight = typeParameterStack.length;
|
|
var typeParameters = readAndPushTypeParameterList();
|
|
readUInt(); // total parameter count.
|
|
var requiredParameterCount = readUInt();
|
|
int variableStackHeight = variableStack.length;
|
|
var positional = readAndPushVariableDeclarationList();
|
|
var named = readAndPushVariableDeclarationList();
|
|
var returnType = readDartType();
|
|
int oldLabelStackBase = labelStackBase;
|
|
|
|
if (lazyLoadBody && outerEndOffset > 0) {
|
|
lazyLoadBody = outerEndOffset - _byteOffset >
|
|
2; // e.g. outline has Tag.Something and Tag.EmptyStatement
|
|
}
|
|
|
|
var body;
|
|
if (!lazyLoadBody) {
|
|
labelStackBase = labelStack.length;
|
|
body = readStatementOption();
|
|
}
|
|
|
|
FunctionNode result = new FunctionNode(body,
|
|
typeParameters: typeParameters,
|
|
requiredParameterCount: requiredParameterCount,
|
|
positionalParameters: positional,
|
|
namedParameters: named,
|
|
returnType: returnType,
|
|
asyncMarker: asyncMarker,
|
|
dartAsyncMarker: dartAsyncMarker)
|
|
..fileOffset = offset
|
|
..fileEndOffset = endOffset;
|
|
|
|
if (lazyLoadBody) {
|
|
_setLazyLoadFunction(result, oldLabelStackBase, variableStackHeight,
|
|
typeParameterStackHeight);
|
|
}
|
|
|
|
labelStackBase = oldLabelStackBase;
|
|
variableStack.length = variableStackHeight;
|
|
typeParameterStack.length = typeParameterStackHeight;
|
|
|
|
return result;
|
|
}
|
|
|
|
void _setLazyLoadFunction(FunctionNode result, int oldLabelStackBase,
|
|
int variableStackHeight, int typeParameterStackHeight) {
|
|
final int savedByteOffset = _byteOffset;
|
|
final int componentStartOffset = _componentStartOffset;
|
|
final List<TypeParameter> typeParameters = typeParameterStack.toList();
|
|
final List<VariableDeclaration> variables = variableStack.toList();
|
|
final Library currentLibrary = _currentLibrary;
|
|
result.lazyBuilder = () {
|
|
_byteOffset = savedByteOffset;
|
|
_currentLibrary = currentLibrary;
|
|
typeParameterStack.clear();
|
|
typeParameterStack.addAll(typeParameters);
|
|
variableStack.clear();
|
|
variableStack.addAll(variables);
|
|
_componentStartOffset = componentStartOffset;
|
|
|
|
result.body = readStatementOption();
|
|
result.body?.parent = result;
|
|
labelStackBase = oldLabelStackBase;
|
|
variableStack.length = variableStackHeight;
|
|
typeParameterStack.length = typeParameterStackHeight;
|
|
if (result.parent is Procedure) {
|
|
Procedure parent = result.parent;
|
|
parent.transformerFlags |= getAndResetTransformerFlags();
|
|
}
|
|
};
|
|
}
|
|
|
|
void pushVariableDeclaration(VariableDeclaration variable) {
|
|
variableStack.add(variable);
|
|
}
|
|
|
|
void pushVariableDeclarations(List<VariableDeclaration> variables) {
|
|
variableStack.addAll(variables);
|
|
}
|
|
|
|
VariableDeclaration readVariableReference() {
|
|
int index = readUInt();
|
|
if (index >= variableStack.length) {
|
|
throw fail('Invalid variable index: $index');
|
|
}
|
|
return variableStack[index];
|
|
}
|
|
|
|
String logicalOperatorToString(int index) {
|
|
switch (index) {
|
|
case 0:
|
|
return '&&';
|
|
case 1:
|
|
return '||';
|
|
default:
|
|
throw fail('Invalid logical operator index: $index');
|
|
}
|
|
}
|
|
|
|
List<Expression> readExpressionList() {
|
|
int length = readUInt();
|
|
List<Expression> result =
|
|
new List<Expression>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readExpression();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Expression readExpressionOption() {
|
|
return readAndCheckOptionTag() ? readExpression() : null;
|
|
}
|
|
|
|
Expression readExpression() {
|
|
int tagByte = readByte();
|
|
int tag = tagByte & Tag.SpecializedTagHighBit == 0
|
|
? tagByte
|
|
: (tagByte & Tag.SpecializedTagMask);
|
|
switch (tag) {
|
|
case Tag.LoadLibrary:
|
|
return new LoadLibrary(readLibraryDependencyReference());
|
|
case Tag.CheckLibraryIsLoaded:
|
|
return new CheckLibraryIsLoaded(readLibraryDependencyReference());
|
|
case Tag.InvalidExpression:
|
|
int offset = readOffset();
|
|
return new InvalidExpression(readStringOrNullIfEmpty())
|
|
..fileOffset = offset;
|
|
case Tag.VariableGet:
|
|
int offset = readOffset();
|
|
readUInt(); // offset of the variable declaration in the binary.
|
|
return new VariableGet(readVariableReference(), readDartTypeOption())
|
|
..fileOffset = offset;
|
|
case Tag.SpecializedVariableGet:
|
|
int index = tagByte & Tag.SpecializedPayloadMask;
|
|
int offset = readOffset();
|
|
readUInt(); // offset of the variable declaration in the binary.
|
|
return new VariableGet(variableStack[index])..fileOffset = offset;
|
|
case Tag.VariableSet:
|
|
int offset = readOffset();
|
|
readUInt(); // offset of the variable declaration in the binary.
|
|
return new VariableSet(readVariableReference(), readExpression())
|
|
..fileOffset = offset;
|
|
case Tag.SpecializedVariableSet:
|
|
int index = tagByte & Tag.SpecializedPayloadMask;
|
|
int offset = readOffset();
|
|
readUInt(); // offset of the variable declaration in the binary.
|
|
return new VariableSet(variableStack[index], readExpression())
|
|
..fileOffset = offset;
|
|
case Tag.PropertyGet:
|
|
int offset = readOffset();
|
|
return new PropertyGet.byReference(
|
|
readExpression(), readName(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.PropertySet:
|
|
int offset = readOffset();
|
|
return new PropertySet.byReference(readExpression(), readName(),
|
|
readExpression(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.SuperPropertyGet:
|
|
int offset = readOffset();
|
|
addTransformerFlag(TransformerFlag.superCalls);
|
|
return new SuperPropertyGet.byReference(
|
|
readName(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.SuperPropertySet:
|
|
int offset = readOffset();
|
|
addTransformerFlag(TransformerFlag.superCalls);
|
|
return new SuperPropertySet.byReference(
|
|
readName(), readExpression(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.DirectPropertyGet:
|
|
int offset = readOffset();
|
|
return new DirectPropertyGet.byReference(
|
|
readExpression(), readMemberReference())
|
|
..fileOffset = offset;
|
|
case Tag.DirectPropertySet:
|
|
int offset = readOffset();
|
|
return new DirectPropertySet.byReference(
|
|
readExpression(), readMemberReference(), readExpression())
|
|
..fileOffset = offset;
|
|
case Tag.StaticGet:
|
|
int offset = readOffset();
|
|
return new StaticGet.byReference(readMemberReference())
|
|
..fileOffset = offset;
|
|
case Tag.StaticSet:
|
|
int offset = readOffset();
|
|
return new StaticSet.byReference(
|
|
readMemberReference(), readExpression())
|
|
..fileOffset = offset;
|
|
case Tag.MethodInvocation:
|
|
int offset = readOffset();
|
|
return new MethodInvocation.byReference(readExpression(), readName(),
|
|
readArguments(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.SuperMethodInvocation:
|
|
int offset = readOffset();
|
|
addTransformerFlag(TransformerFlag.superCalls);
|
|
return new SuperMethodInvocation.byReference(
|
|
readName(), readArguments(), readMemberReference(allowNull: true))
|
|
..fileOffset = offset;
|
|
case Tag.DirectMethodInvocation:
|
|
int offset = readOffset();
|
|
return new DirectMethodInvocation.byReference(
|
|
readExpression(), readMemberReference(), readArguments())
|
|
..fileOffset = offset;
|
|
case Tag.StaticInvocation:
|
|
int offset = readOffset();
|
|
return new StaticInvocation.byReference(
|
|
readMemberReference(), readArguments(),
|
|
isConst: false)
|
|
..fileOffset = offset;
|
|
case Tag.ConstStaticInvocation:
|
|
int offset = readOffset();
|
|
return new StaticInvocation.byReference(
|
|
readMemberReference(), readArguments(),
|
|
isConst: true)
|
|
..fileOffset = offset;
|
|
case Tag.ConstructorInvocation:
|
|
int offset = readOffset();
|
|
return new ConstructorInvocation.byReference(
|
|
readMemberReference(), readArguments(),
|
|
isConst: false)
|
|
..fileOffset = offset;
|
|
case Tag.ConstConstructorInvocation:
|
|
int offset = readOffset();
|
|
return new ConstructorInvocation.byReference(
|
|
readMemberReference(), readArguments(),
|
|
isConst: true)
|
|
..fileOffset = offset;
|
|
case Tag.Not:
|
|
return new Not(readExpression());
|
|
case Tag.LogicalExpression:
|
|
return new LogicalExpression(readExpression(),
|
|
logicalOperatorToString(readByte()), readExpression());
|
|
case Tag.ConditionalExpression:
|
|
return new ConditionalExpression(readExpression(), readExpression(),
|
|
readExpression(), readDartTypeOption());
|
|
case Tag.StringConcatenation:
|
|
int offset = readOffset();
|
|
return new StringConcatenation(readExpressionList())
|
|
..fileOffset = offset;
|
|
case Tag.IsExpression:
|
|
int offset = readOffset();
|
|
return new IsExpression(readExpression(), readDartType())
|
|
..fileOffset = offset;
|
|
case Tag.AsExpression:
|
|
int offset = readOffset();
|
|
int flags = readByte();
|
|
return new AsExpression(readExpression(), readDartType())
|
|
..fileOffset = offset
|
|
..flags = flags;
|
|
case Tag.StringLiteral:
|
|
return new StringLiteral(readStringReference());
|
|
case Tag.SpecializedIntLiteral:
|
|
int biasedValue = tagByte & Tag.SpecializedPayloadMask;
|
|
return new IntLiteral(biasedValue - Tag.SpecializedIntLiteralBias);
|
|
case Tag.PositiveIntLiteral:
|
|
return new IntLiteral(readUInt());
|
|
case Tag.NegativeIntLiteral:
|
|
return new IntLiteral(-readUInt());
|
|
case Tag.BigIntLiteral:
|
|
return new IntLiteral(int.parse(readStringReference()));
|
|
case Tag.DoubleLiteral:
|
|
return new DoubleLiteral(readDouble());
|
|
case Tag.TrueLiteral:
|
|
return new BoolLiteral(true);
|
|
case Tag.FalseLiteral:
|
|
return new BoolLiteral(false);
|
|
case Tag.NullLiteral:
|
|
return new NullLiteral();
|
|
case Tag.SymbolLiteral:
|
|
return new SymbolLiteral(readStringReference());
|
|
case Tag.TypeLiteral:
|
|
return new TypeLiteral(readDartType());
|
|
case Tag.ThisExpression:
|
|
return new ThisExpression();
|
|
case Tag.Rethrow:
|
|
int offset = readOffset();
|
|
return new Rethrow()..fileOffset = offset;
|
|
case Tag.Throw:
|
|
int offset = readOffset();
|
|
return new Throw(readExpression())..fileOffset = offset;
|
|
case Tag.ListLiteral:
|
|
int offset = readOffset();
|
|
var typeArgument = readDartType();
|
|
return new ListLiteral(readExpressionList(),
|
|
typeArgument: typeArgument, isConst: false)
|
|
..fileOffset = offset;
|
|
case Tag.ConstListLiteral:
|
|
int offset = readOffset();
|
|
var typeArgument = readDartType();
|
|
return new ListLiteral(readExpressionList(),
|
|
typeArgument: typeArgument, isConst: true)
|
|
..fileOffset = offset;
|
|
case Tag.MapLiteral:
|
|
int offset = readOffset();
|
|
var keyType = readDartType();
|
|
var valueType = readDartType();
|
|
return new MapLiteral(readMapEntryList(),
|
|
keyType: keyType, valueType: valueType, isConst: false)
|
|
..fileOffset = offset;
|
|
case Tag.ConstMapLiteral:
|
|
int offset = readOffset();
|
|
var keyType = readDartType();
|
|
var valueType = readDartType();
|
|
return new MapLiteral(readMapEntryList(),
|
|
keyType: keyType, valueType: valueType, isConst: true)
|
|
..fileOffset = offset;
|
|
case Tag.AwaitExpression:
|
|
return new AwaitExpression(readExpression());
|
|
case Tag.FunctionExpression:
|
|
int offset = readOffset();
|
|
return new FunctionExpression(readFunctionNode())..fileOffset = offset;
|
|
case Tag.Let:
|
|
var variable = readVariableDeclaration();
|
|
int stackHeight = variableStack.length;
|
|
pushVariableDeclaration(variable);
|
|
var body = readExpression();
|
|
variableStack.length = stackHeight;
|
|
return new Let(variable, body);
|
|
case Tag.Instantiation:
|
|
var expression = readExpression();
|
|
var typeArguments = readDartTypeList();
|
|
return new Instantiation(expression, typeArguments);
|
|
case Tag.VectorCreation:
|
|
var length = readUInt();
|
|
return new VectorCreation(length);
|
|
case Tag.VectorGet:
|
|
var vectorExpression = readExpression();
|
|
var index = readUInt();
|
|
return new VectorGet(vectorExpression, index);
|
|
case Tag.VectorSet:
|
|
var vectorExpression = readExpression();
|
|
var index = readUInt();
|
|
var value = readExpression();
|
|
return new VectorSet(vectorExpression, index, value);
|
|
case Tag.VectorCopy:
|
|
var vectorExpression = readExpression();
|
|
return new VectorCopy(vectorExpression);
|
|
case Tag.ClosureCreation:
|
|
var topLevelFunctionReference = readMemberReference();
|
|
var contextVector = readExpression();
|
|
var functionType = readDartType();
|
|
var typeArgs = readDartTypeList();
|
|
return new ClosureCreation.byReference(
|
|
topLevelFunctionReference, contextVector, functionType, typeArgs);
|
|
case Tag.ConstantExpression:
|
|
return new ConstantExpression(readConstantReference());
|
|
default:
|
|
throw fail('Invalid expression tag: $tag');
|
|
}
|
|
}
|
|
|
|
List<MapEntry> readMapEntryList() {
|
|
int length = readUInt();
|
|
List<MapEntry> result =
|
|
new List<MapEntry>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readMapEntry();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
MapEntry readMapEntry() {
|
|
return new MapEntry(readExpression(), readExpression());
|
|
}
|
|
|
|
List<Statement> readStatementList() {
|
|
int length = readUInt();
|
|
List<Statement> result =
|
|
new List<Statement>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readStatement();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Statement readStatementOrNullIfEmpty() {
|
|
var node = readStatement();
|
|
if (node is EmptyStatement) {
|
|
return null;
|
|
} else {
|
|
return node;
|
|
}
|
|
}
|
|
|
|
Statement readStatementOption() {
|
|
return readAndCheckOptionTag() ? readStatement() : null;
|
|
}
|
|
|
|
Statement readStatement() {
|
|
int tag = readByte();
|
|
switch (tag) {
|
|
case Tag.ExpressionStatement:
|
|
return new ExpressionStatement(readExpression());
|
|
case Tag.Block:
|
|
return readBlock();
|
|
case Tag.AssertBlock:
|
|
return readAssertBlock();
|
|
case Tag.EmptyStatement:
|
|
return new EmptyStatement();
|
|
case Tag.AssertStatement:
|
|
return new AssertStatement(readExpression(),
|
|
conditionStartOffset: readOffset(),
|
|
conditionEndOffset: readOffset(),
|
|
message: readExpressionOption());
|
|
case Tag.LabeledStatement:
|
|
var label = new LabeledStatement(null);
|
|
labelStack.add(label);
|
|
label.body = readStatement()..parent = label;
|
|
labelStack.removeLast();
|
|
return label;
|
|
case Tag.BreakStatement:
|
|
int offset = readOffset();
|
|
int index = readUInt();
|
|
return new BreakStatement(labelStack[labelStackBase + index])
|
|
..fileOffset = offset;
|
|
case Tag.WhileStatement:
|
|
var offset = readOffset();
|
|
return new WhileStatement(readExpression(), readStatement())
|
|
..fileOffset = offset;
|
|
case Tag.DoStatement:
|
|
var offset = readOffset();
|
|
return new DoStatement(readStatement(), readExpression())
|
|
..fileOffset = offset;
|
|
case Tag.ForStatement:
|
|
int variableStackHeight = variableStack.length;
|
|
var offset = readOffset();
|
|
var variables = readAndPushVariableDeclarationList();
|
|
var condition = readExpressionOption();
|
|
var updates = readExpressionList();
|
|
var body = readStatement();
|
|
variableStack.length = variableStackHeight;
|
|
return new ForStatement(variables, condition, updates, body)
|
|
..fileOffset = offset;
|
|
case Tag.ForInStatement:
|
|
case Tag.AsyncForInStatement:
|
|
bool isAsync = tag == Tag.AsyncForInStatement;
|
|
int variableStackHeight = variableStack.length;
|
|
var offset = readOffset();
|
|
var bodyOffset = readOffset();
|
|
var variable = readAndPushVariableDeclaration();
|
|
var iterable = readExpression();
|
|
var body = readStatement();
|
|
variableStack.length = variableStackHeight;
|
|
return new ForInStatement(variable, iterable, body, isAsync: isAsync)
|
|
..fileOffset = offset
|
|
..bodyOffset = bodyOffset;
|
|
case Tag.SwitchStatement:
|
|
var offset = readOffset();
|
|
var expression = readExpression();
|
|
int count = readUInt();
|
|
List<SwitchCase> cases =
|
|
new List<SwitchCase>.filled(count, null, growable: true);
|
|
for (int i = 0; i < count; ++i) {
|
|
cases[i] = new SwitchCase.empty();
|
|
}
|
|
switchCaseStack.addAll(cases);
|
|
for (int i = 0; i < cases.length; ++i) {
|
|
readSwitchCaseInto(cases[i]);
|
|
}
|
|
switchCaseStack.length -= count;
|
|
return new SwitchStatement(expression, cases)..fileOffset = offset;
|
|
case Tag.ContinueSwitchStatement:
|
|
int offset = readOffset();
|
|
int index = readUInt();
|
|
return new ContinueSwitchStatement(switchCaseStack[index])
|
|
..fileOffset = offset;
|
|
case Tag.IfStatement:
|
|
int offset = readOffset();
|
|
return new IfStatement(
|
|
readExpression(), readStatement(), readStatementOrNullIfEmpty())
|
|
..fileOffset = offset;
|
|
case Tag.ReturnStatement:
|
|
int offset = readOffset();
|
|
return new ReturnStatement(readExpressionOption())..fileOffset = offset;
|
|
case Tag.TryCatch:
|
|
Statement body = readStatement();
|
|
int flags = readByte();
|
|
return new TryCatch(body, readCatchList(), isSynthetic: flags & 2 == 2);
|
|
case Tag.TryFinally:
|
|
return new TryFinally(readStatement(), readStatement());
|
|
case Tag.YieldStatement:
|
|
int offset = readOffset();
|
|
int flags = readByte();
|
|
return new YieldStatement(readExpression(),
|
|
isYieldStar: flags & YieldStatement.FlagYieldStar != 0,
|
|
isNative: flags & YieldStatement.FlagNative != 0)
|
|
..fileOffset = offset;
|
|
case Tag.VariableDeclaration:
|
|
var variable = readVariableDeclaration();
|
|
variableStack.add(variable); // Will be popped by the enclosing scope.
|
|
return variable;
|
|
case Tag.FunctionDeclaration:
|
|
int offset = readOffset();
|
|
var variable = readVariableDeclaration();
|
|
variableStack.add(variable); // Will be popped by the enclosing scope.
|
|
var function = readFunctionNode();
|
|
return new FunctionDeclaration(variable, function)..fileOffset = offset;
|
|
default:
|
|
throw fail('Invalid statement tag: $tag');
|
|
}
|
|
}
|
|
|
|
void readSwitchCaseInto(SwitchCase caseNode) {
|
|
int length = readUInt();
|
|
caseNode.expressions.length = length;
|
|
caseNode.expressionOffsets.length = length;
|
|
for (int i = 0; i < length; ++i) {
|
|
caseNode.expressionOffsets[i] = readOffset();
|
|
caseNode.expressions[i] = readExpression()..parent = caseNode;
|
|
}
|
|
caseNode.isDefault = readByte() == 1;
|
|
caseNode.body = readStatement()..parent = caseNode;
|
|
}
|
|
|
|
List<Catch> readCatchList() {
|
|
int length = readUInt();
|
|
List<Catch> result = new List<Catch>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readCatch();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
Catch readCatch() {
|
|
int variableStackHeight = variableStack.length;
|
|
var offset = readOffset();
|
|
var guard = readDartType();
|
|
var exception = readAndPushVariableDeclarationOption();
|
|
var stackTrace = readAndPushVariableDeclarationOption();
|
|
var body = readStatement();
|
|
variableStack.length = variableStackHeight;
|
|
return new Catch(exception, body, guard: guard, stackTrace: stackTrace)
|
|
..fileOffset = offset;
|
|
}
|
|
|
|
Block readBlock() {
|
|
int stackHeight = variableStack.length;
|
|
var body = readStatementList();
|
|
variableStack.length = stackHeight;
|
|
return new Block(body);
|
|
}
|
|
|
|
AssertBlock readAssertBlock() {
|
|
int stackHeight = variableStack.length;
|
|
var body = readStatementList();
|
|
variableStack.length = stackHeight;
|
|
return new AssertBlock(body);
|
|
}
|
|
|
|
Supertype readSupertype() {
|
|
InterfaceType type = readDartType();
|
|
return new Supertype.byReference(type.className, type.typeArguments);
|
|
}
|
|
|
|
Supertype readSupertypeOption() {
|
|
return readAndCheckOptionTag() ? readSupertype() : null;
|
|
}
|
|
|
|
List<Supertype> readSupertypeList() {
|
|
int length = readUInt();
|
|
List<Supertype> result =
|
|
new List<Supertype>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readSupertype();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
List<DartType> readDartTypeList() {
|
|
int length = readUInt();
|
|
List<DartType> result =
|
|
new List<DartType>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readDartType();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
List<NamedType> readNamedTypeList() {
|
|
int length = readUInt();
|
|
List<NamedType> result =
|
|
new List<NamedType>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readNamedType();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NamedType readNamedType() {
|
|
return new NamedType(readStringReference(), readDartType());
|
|
}
|
|
|
|
DartType readDartTypeOption() {
|
|
return readAndCheckOptionTag() ? readDartType() : null;
|
|
}
|
|
|
|
DartType readDartType() {
|
|
int tag = readByte();
|
|
switch (tag) {
|
|
case Tag.TypedefType:
|
|
return new TypedefType.byReference(
|
|
readTypedefReference(), readDartTypeList());
|
|
case Tag.VectorType:
|
|
return const VectorType();
|
|
case Tag.BottomType:
|
|
return const BottomType();
|
|
case Tag.InvalidType:
|
|
return const InvalidType();
|
|
case Tag.DynamicType:
|
|
return const DynamicType();
|
|
case Tag.VoidType:
|
|
return const VoidType();
|
|
case Tag.InterfaceType:
|
|
return new InterfaceType.byReference(
|
|
readClassReference(), readDartTypeList());
|
|
case Tag.SimpleInterfaceType:
|
|
return new InterfaceType.byReference(
|
|
readClassReference(), const <DartType>[]);
|
|
case Tag.FunctionType:
|
|
int typeParameterStackHeight = typeParameterStack.length;
|
|
var typeParameters = readAndPushTypeParameterList();
|
|
var requiredParameterCount = readUInt();
|
|
var totalParameterCount = readUInt();
|
|
var positional = readDartTypeList();
|
|
var named = readNamedTypeList();
|
|
var positionalNames = readStringReferenceList();
|
|
var typedefReference = readTypedefReference();
|
|
assert(positional.length + named.length == totalParameterCount);
|
|
var returnType = readDartType();
|
|
typeParameterStack.length = typeParameterStackHeight;
|
|
return new FunctionType(positional, returnType,
|
|
typeParameters: typeParameters,
|
|
requiredParameterCount: requiredParameterCount,
|
|
namedParameters: named,
|
|
positionalParameterNames: positionalNames,
|
|
typedefReference: typedefReference);
|
|
case Tag.SimpleFunctionType:
|
|
var positional = readDartTypeList();
|
|
var positionalNames = readStringReferenceList();
|
|
var returnType = readDartType();
|
|
return new FunctionType(positional, returnType,
|
|
positionalParameterNames: positionalNames);
|
|
case Tag.TypeParameterType:
|
|
int index = readUInt();
|
|
var bound = readDartTypeOption();
|
|
return new TypeParameterType(typeParameterStack[index], bound);
|
|
default:
|
|
throw fail('Invalid dart type tag: $tag');
|
|
}
|
|
}
|
|
|
|
List<TypeParameter> readAndPushTypeParameterList(
|
|
[List<TypeParameter> list, TreeNode parent]) {
|
|
int length = readUInt();
|
|
if (length == 0) return list ?? <TypeParameter>[];
|
|
if (list == null) {
|
|
list = new List<TypeParameter>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
list[i] = new TypeParameter(null, null)..parent = parent;
|
|
}
|
|
} else if (list.length != length) {
|
|
list.length = length;
|
|
for (int i = 0; i < length; ++i) {
|
|
list[i] = new TypeParameter(null, null)..parent = parent;
|
|
}
|
|
}
|
|
typeParameterStack.addAll(list);
|
|
for (int i = 0; i < list.length; ++i) {
|
|
readTypeParameter(list[i]);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
void readTypeParameter(TypeParameter node) {
|
|
node.flags = readByte();
|
|
node.annotations = readAnnotationList(node);
|
|
node.name = readStringOrNullIfEmpty();
|
|
node.bound = readDartType();
|
|
node.defaultType = readDartTypeOption();
|
|
}
|
|
|
|
Arguments readArguments() {
|
|
var numArguments = readUInt();
|
|
var typeArguments = readDartTypeList();
|
|
var positional = readExpressionList();
|
|
var named = readNamedExpressionList();
|
|
assert(numArguments == positional.length + named.length);
|
|
return new Arguments(positional, types: typeArguments, named: named);
|
|
}
|
|
|
|
List<NamedExpression> readNamedExpressionList() {
|
|
int length = readUInt();
|
|
List<NamedExpression> result =
|
|
new List<NamedExpression>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readNamedExpression();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
NamedExpression readNamedExpression() {
|
|
return new NamedExpression(readStringReference(), readExpression());
|
|
}
|
|
|
|
List<VariableDeclaration> readAndPushVariableDeclarationList() {
|
|
int length = readUInt();
|
|
List<VariableDeclaration> result =
|
|
new List<VariableDeclaration>.filled(length, null, growable: true);
|
|
for (int i = 0; i < length; ++i) {
|
|
result[i] = readAndPushVariableDeclaration();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
VariableDeclaration readAndPushVariableDeclarationOption() {
|
|
return readAndCheckOptionTag() ? readAndPushVariableDeclaration() : null;
|
|
}
|
|
|
|
VariableDeclaration readAndPushVariableDeclaration() {
|
|
var variable = readVariableDeclaration();
|
|
variableStack.add(variable);
|
|
return variable;
|
|
}
|
|
|
|
VariableDeclaration readVariableDeclaration() {
|
|
int offset = readOffset();
|
|
int fileEqualsOffset = readOffset();
|
|
// The [VariableDeclaration] instance is not created at this point yet,
|
|
// so `null` is temporarily set as the parent of the annotation nodes.
|
|
var annotations = readAnnotationList(null);
|
|
int flags = readByte();
|
|
var node = new VariableDeclaration(readStringOrNullIfEmpty(),
|
|
type: readDartType(), initializer: readExpressionOption(), flags: flags)
|
|
..fileOffset = offset
|
|
..fileEqualsOffset = fileEqualsOffset;
|
|
if (annotations.isNotEmpty) {
|
|
for (int i = 0; i < annotations.length; ++i) {
|
|
var annotation = annotations[i];
|
|
annotation.parent = node;
|
|
}
|
|
}
|
|
return node;
|
|
}
|
|
|
|
int readOffset() {
|
|
// Offset is saved as unsigned,
|
|
// but actually ranges from -1 and up (thus the -1)
|
|
return readUInt() - 1;
|
|
}
|
|
}
|
|
|
|
class BinaryBuilderWithMetadata extends BinaryBuilder implements BinarySource {
|
|
/// List of metadata subsections that have corresponding [MetadataRepository]
|
|
/// and are awaiting to be parsed and attached to nodes.
|
|
List<_MetadataSubsection> _subsections;
|
|
|
|
BinaryBuilderWithMetadata(bytes, [filename])
|
|
: super(bytes, filename: filename);
|
|
|
|
@override
|
|
void _readMetadataMappings(
|
|
Component component, int binaryOffsetForMetadataPayloads) {
|
|
// At the beginning of this function _byteOffset points right past
|
|
// metadataMappings to string table.
|
|
|
|
// Read the length of metadataMappings.
|
|
_byteOffset -= 4;
|
|
final subSectionCount = readUint32();
|
|
|
|
int endOffset = _byteOffset - 4; // End offset of the current subsection.
|
|
for (var i = 0; i < subSectionCount; i++) {
|
|
// RList<Pair<UInt32, UInt32>> nodeOffsetToMetadataOffset
|
|
_byteOffset = endOffset - 4;
|
|
final mappingLength = readUint32();
|
|
final mappingStart = (endOffset - 4) - 4 * 2 * mappingLength;
|
|
_byteOffset = mappingStart - 4;
|
|
|
|
// UInt32 tag (fixed size StringReference)
|
|
final tag = _stringTable[readUint32()];
|
|
|
|
final repository = component.metadata[tag];
|
|
if (repository != null) {
|
|
// Read nodeOffsetToMetadataOffset mapping.
|
|
final mapping = <int, int>{};
|
|
_byteOffset = mappingStart;
|
|
for (var j = 0; j < mappingLength; j++) {
|
|
final nodeOffset = readUint32();
|
|
final metadataOffset = binaryOffsetForMetadataPayloads + readUint32();
|
|
mapping[nodeOffset] = metadataOffset;
|
|
}
|
|
|
|
_subsections ??= <_MetadataSubsection>[];
|
|
_subsections.add(new _MetadataSubsection(repository, mapping));
|
|
}
|
|
|
|
// Start of the subsection and the end of the previous one.
|
|
endOffset = mappingStart - 4;
|
|
}
|
|
}
|
|
|
|
Object _readMetadata(Node node, MetadataRepository repository, int offset) {
|
|
final int savedOffset = _byteOffset;
|
|
_byteOffset = offset;
|
|
|
|
final metadata = repository.readFromBinary(node, this);
|
|
|
|
_byteOffset = savedOffset;
|
|
return metadata;
|
|
}
|
|
|
|
@override
|
|
void enterScope({List<TypeParameter> typeParameters}) {
|
|
if (typeParameters != null) {
|
|
typeParameterStack.addAll(typeParameters);
|
|
}
|
|
}
|
|
|
|
@override
|
|
void leaveScope({List<TypeParameter> typeParameters}) {
|
|
if (typeParameters != null) {
|
|
typeParameterStack.length -= typeParameters.length;
|
|
}
|
|
}
|
|
|
|
@override
|
|
Node _associateMetadata(Node node, int nodeOffset) {
|
|
if (_subsections == null) {
|
|
return node;
|
|
}
|
|
|
|
for (var subsection in _subsections) {
|
|
// First check if there is any metadata associated with this node.
|
|
final metadataOffset = subsection.mapping[nodeOffset];
|
|
if (metadataOffset != null) {
|
|
subsection.repository.mapping[node] =
|
|
_readMetadata(node, subsection.repository, metadataOffset);
|
|
}
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
@override
|
|
DartType readDartType() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readDartType();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Library readLibrary(Component component, int endOffset) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readLibrary(component, endOffset);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Typedef readTypedef() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readTypedef();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Class readClass(int endOffset) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readClass(endOffset);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Field readField() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readField();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Constructor readConstructor() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readConstructor();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Procedure readProcedure(int endOffset) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readProcedure(endOffset);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
RedirectingFactoryConstructor readRedirectingFactoryConstructor() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readRedirectingFactoryConstructor();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Initializer readInitializer() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readInitializer();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
FunctionNode readFunctionNode(
|
|
{bool lazyLoadBody: false, int outerEndOffset: -1}) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readFunctionNode(
|
|
lazyLoadBody: lazyLoadBody, outerEndOffset: outerEndOffset);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Expression readExpression() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readExpression();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Arguments readArguments() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readArguments();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
NamedExpression readNamedExpression() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readNamedExpression();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
VariableDeclaration readVariableDeclaration() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readVariableDeclaration();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Statement readStatement() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readStatement();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Combinator readCombinator() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readCombinator();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
LibraryDependency readLibraryDependency(Library library) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readLibraryDependency(library);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
LibraryPart readLibraryPart(Library library) {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readLibraryPart(library);
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
void readSwitchCaseInto(SwitchCase caseNode) {
|
|
_associateMetadata(caseNode, _byteOffset);
|
|
super.readSwitchCaseInto(caseNode);
|
|
}
|
|
|
|
@override
|
|
void readTypeParameter(TypeParameter param) {
|
|
_associateMetadata(param, _byteOffset);
|
|
super.readTypeParameter(param);
|
|
}
|
|
|
|
@override
|
|
Supertype readSupertype() {
|
|
final nodeOffset = _byteOffset;
|
|
InterfaceType type = super.readDartType();
|
|
return _associateMetadata(
|
|
new Supertype.byReference(type.className, type.typeArguments),
|
|
nodeOffset);
|
|
}
|
|
|
|
@override
|
|
Name readName() {
|
|
final nodeOffset = _byteOffset;
|
|
final result = super.readName();
|
|
return _associateMetadata(result, nodeOffset);
|
|
}
|
|
|
|
@override
|
|
int get currentOffset => _byteOffset;
|
|
|
|
@override
|
|
List<int> get bytes => _bytes;
|
|
}
|
|
|
|
/// Deserialized MetadataMapping corresponding to the given metadata repository.
|
|
class _MetadataSubsection {
|
|
/// [MetadataRepository] that can read this subsection.
|
|
final MetadataRepository repository;
|
|
|
|
/// Deserialized mapping from node offsets to metadata offsets.
|
|
final Map<int, int> mapping;
|
|
|
|
_MetadataSubsection(this.repository, this.mapping);
|
|
}
|