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Unified Diff: mojo/dart/testing/validation_test_input_parser.dart

Issue 1132063007: Rationalize Dart mojo and sky package structure (Closed) Base URL: https://github.com/domokit/mojo.git@master
Patch Set: Created 5 years, 7 months ago
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Index: mojo/dart/testing/validation_test_input_parser.dart
diff --git a/mojo/dart/testing/validation_test_input_parser.dart b/mojo/dart/testing/validation_test_input_parser.dart
deleted file mode 100644
index 4ade248261b9c50e8f7101b401e6620cd68f7b3f..0000000000000000000000000000000000000000
--- a/mojo/dart/testing/validation_test_input_parser.dart
+++ /dev/null
@@ -1,437 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-library validation_input_parser;
-
-import 'dart:typed_data';
-
-class ValidationParseResult {
- final Iterable<_Entry> _entries;
- final int numHandles;
- final ByteData data;
-
- ValidationParseResult(this._entries, this.data, this.numHandles);
-
- String toString() => _entries.map((e) => '$e').join('\n');
-}
-
-ValidationParseResult parse(String input) =>
- new _ValidationTestParser(input).parse();
-
-class ValidationParseError {
- final String _message;
- ValidationParseError(this._message);
- String toString() => _message;
-}
-
-abstract class _Entry {
- final int size;
- void write(ByteData buffer, int offset, Map pointers);
-}
-
-class _UnsignedEntry implements _Entry {
- final int size;
- final int value;
-
- _UnsignedEntry(this.size, this.value) {
- if ((value >= (1 << (size * 8))) || (value < 0)) {
- throw new ValidationParseError('$value does not fit in a u$size');
- }
- }
-
- void write(ByteData buffer, int offset, Map pointers) {
- switch (size) {
- case 1: buffer.setUint8(offset, value); break;
- case 2: buffer.setUint16(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 4: buffer.setUint32(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 8: buffer.setUint64(offset, value, Endianness.LITTLE_ENDIAN); break;
- default: throw new ValidationParseError('Unexpected size: $size');
- }
- }
-
- String toString() => "[u$size]$value";
- bool operator==(_UnsignedEntry other) =>
- (size == other.size) && (value == other.value);
-}
-
-class _SignedEntry implements _Entry {
- final int size;
- final int value;
-
- _SignedEntry(this.size, this.value) {
- if ((value >= (1 << ((size * 8) - 1))) ||
- (value < -(1 << ((size * 8) - 1)))) {
- throw new ValidationParseError('$value does not fit in a s$size');
- }
- }
-
- void write(ByteData buffer, int offset, Map pointers) {
- switch (size) {
- case 1: buffer.setInt8(offset, value); break;
- case 2: buffer.setInt16(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 4: buffer.setInt32(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 8: buffer.setInt64(offset, value, Endianness.LITTLE_ENDIAN); break;
- default: throw new ValidationParseError('Unexpected size: $size');
- }
- }
-
- String toString() => "[s$size]$value";
- bool operator==(_SignedEntry other) =>
- (size == other.size) && (value == other.value);
-}
-
-class _FloatEntry implements _Entry {
- final int size;
- final double value;
-
- _FloatEntry(this.size, this.value);
-
- void write(ByteData buffer, int offset, Map pointers) {
- switch (size) {
- case 4: buffer.setFloat32(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 8: buffer.setFloat64(offset, value, Endianness.LITTLE_ENDIAN); break;
- default: throw new ValidationParseError('Unexpected size: $size');
- }
- }
-
- String toString() => "[f$size]$value";
- bool operator==(_FloatEntry other) =>
- (size == other.size) && (value == other.value);
-}
-
-class _DistEntry implements _Entry {
- final int size;
- final String id;
- int offset;
- bool matched = false;
-
- _DistEntry(this.size, this.id);
-
- void write(ByteData buffer, int off, Map pointers) {
- offset = off;
- if (pointers[id] != null) {
- throw new ValidationParseError(
- 'Pointer of same name already exists: $id');
- }
- pointers[id] = this;
- }
-
- String toString() => "[dist$size]$id matched = $matched";
- bool operator==(_DistEntry other) =>
- (size == other.size) && (id == other.id);
-}
-
-class _AnchrEntry implements _Entry {
- final int size = 0;
- final String id;
-
- _AnchrEntry(this.id);
-
- void write(ByteData buffer, int off, Map pointers) {
- _DistEntry dist = pointers[id];
- if (dist == null) {
- throw new ValidationParseError('Did not find "$id" in pointers map.');
- }
- int value = off - dist.offset;
- if (value < 0) {
- throw new ValidationParseError('Found a backwards pointer: $id');
- }
- int offset = dist.offset;
- switch (dist.size) {
- case 4: buffer.setUint32(offset, value, Endianness.LITTLE_ENDIAN); break;
- case 8: buffer.setUint64(offset, value, Endianness.LITTLE_ENDIAN); break;
- default: throw new ValidationParseError('Unexpected size: $size');
- }
- dist.matched = true;
- }
-
- String toString() => "[anchr]$id";
- bool operator==(_AnchrEntry other) => (id == other.id);
-}
-
-class _HandlesEntry implements _Entry {
- final int size = 0;
- final int value;
-
- _HandlesEntry(this.value);
-
- void write(ByteData buffer, int offset, Map pointers) {}
-
- String toString() => "[handles]$value";
- bool operator==(_HandlesEntry other) => (value == other.value);
-}
-
-class _CommentEntry implements _Entry {
- final int size = 0;
- final String value;
-
- _CommentEntry(this.value);
-
- void write(ByteData buffer, int offset, Map pointers) {}
-
- String toString() => "// $value";
- bool operator==(_CommentEntry other) => (value == other.value);
-}
-
-class _ValidationTestParser {
- static final RegExp newline = new RegExp(r'[\r\n]+');
- static final RegExp whitespace = new RegExp(r'[ \t\n\r]+');
- static final RegExp nakedUintRegExp =
- new RegExp(r'^0$|^[1-9][0-9]*$|^0[xX][0-9a-fA-F]+$');
- static final RegExp unsignedRegExp =
- new RegExp(r'^\[u([1248])\](0$|[1-9][0-9]*$|0[xX][0-9a-fA-F]+$)');
- static final RegExp signedRegExp = new RegExp(
- r'^\[s([1248])\]([-+]?0$|[-+]?[1-9][0-9]*$|[-+]?0[xX][0-9a-fA-F]+$)');
- static final RegExp binaryRegExp =
- new RegExp(r'^\[(b)\]([01]{8}$)');
- static final RegExp floatRegExp =
- new RegExp(r'^\[([fd])\]([-+]?[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?$)');
- static final RegExp distRegExp =
- new RegExp(r'^\[dist([48])\]([0-9a-zA-Z_]+$)');
- static final RegExp anchrRegExp =
- new RegExp(r'^\[(anchr)\]([0-9a-zA-Z_]+$)');
- static final RegExp handlesRegExp =
- new RegExp(r'^\[(handles)\](0$|([1-9][0-9]*$)|(0[xX][0-9a-fA-F]+$))');
- static final RegExp commentRegExp =
- new RegExp(r'//(.*)');
-
- String _input;
- Map<String, _DistEntry> _pointers;
-
- _ValidationTestParser(this._input) : _pointers = {};
-
- String _stripComment(String line) => line.replaceFirst(commentRegExp, "");
-
- ValidationParseResult parse() {
- var entries = _input.split(newline)
- .map(_stripComment)
- .expand((s) => s.split(whitespace))
- .where((s) => s != "")
- .map(_parseLine);
- int size = _calculateSize(entries);
- var data = (size > 0) ? new ByteData(size) : null;
- int numHandles = 0;
- int offset = 0;
- bool first = true;
-
- for (var entry in entries) {
- entry.write(data, offset, _pointers);
- offset += entry.size;
-
- if (entry is _HandlesEntry) {
- if (!first) {
- throw new ValidationParseError('Handles entry was not first');
- }
- numHandles = entry.value;
- }
- first = false;
- }
-
- for (var entry in entries) {
- if (entry is _DistEntry) {
- if (!_pointers[entry.id].matched) {
- throw new ValidationParseError('Unmatched dist: $entry');
- }
- }
- }
-
- return new ValidationParseResult(entries, data, numHandles);
- }
-
- _Entry _parseLine(String line) {
- if (unsignedRegExp.hasMatch(line)) {
- var match = unsignedRegExp.firstMatch(line);
- return new _UnsignedEntry(
- int.parse(match.group(1)), int.parse(match.group(2)));
- } else if (signedRegExp.hasMatch(line)) {
- var match = signedRegExp.firstMatch(line);
- return new _SignedEntry(
- int.parse(match.group(1)), int.parse(match.group(2)));
- } else if (binaryRegExp.hasMatch(line)) {
- var match = binaryRegExp.firstMatch(line);
- return new _UnsignedEntry(1, int.parse(match.group(2), radix: 2));
- } else if (floatRegExp.hasMatch(line)) {
- var match = floatRegExp.firstMatch(line);
- int size = match.group(1) == 'f' ? 4 : 8;
- return new _FloatEntry(size, double.parse(match.group(2)));
- } else if (distRegExp.hasMatch(line)) {
- var match = distRegExp.firstMatch(line);
- return new _DistEntry(int.parse(match.group(1)), match.group(2));
- } else if (anchrRegExp.hasMatch(line)) {
- var match = anchrRegExp.firstMatch(line);
- return new _AnchrEntry(match.group(2));
- } else if (handlesRegExp.hasMatch(line)) {
- var match = handlesRegExp.firstMatch(line);
- return new _HandlesEntry(int.parse(match.group(2)));
- } else if (nakedUintRegExp.hasMatch(line)) {
- var match = nakedUintRegExp.firstMatch(line);
- return new _UnsignedEntry(1, int.parse(match.group(0)));
- } else if (commentRegExp.hasMatch(line)) {
- var match = commentRegExp.firstMatch(line);
- return new _CommentEntry(match.group(1));
- } else if (line == "") {
- return new _CommentEntry("");
- } else {
- throw new ValidationParseError('Unkown entry: "$line" in \n$_input');
- }
- }
-
- int _calculateSize(Iterable<_Entry> entries) =>
- entries.fold(0, (value, entry) => value + entry.size);
-}
-
-bool _listEquals(Iterable i1, Iterable i2) {
- var l1 = i1.toList();
- var l2 = i2.toList();
- if (l1.length != l2.length) return false;
- for (int i = 0; i < l1.length; i++) {
- if (l1[i] != l2[i]) return false;
- }
- return true;
-}
-
-parserTests() {
- {
- var input = " \t // hello world \n\r \t// the answer is 42 ";
- var result = parse(input);
- assert(result.data == null);
- assert(result.numHandles == 0);
- }
- {
- var input = "[u1]0x10// hello world !! \n\r \t [u2]65535 \n"
- "[u4]65536 [u8]0xFFFFFFFFFFFFFFFF 0 0Xff";
- var result = parse(input);
-
- // Check the parse results.
- var expected = [new _UnsignedEntry(1, 0x10),
- new _UnsignedEntry(2, 65535),
- new _UnsignedEntry(4, 65536),
- new _UnsignedEntry(8, 0xFFFFFFFFFFFFFFFF),
- new _UnsignedEntry(1, 0),
- new _UnsignedEntry(1, 0xff)];
- assert(_listEquals(result._entries, expected));
-
- //Check the bits.
- var buffer = new ByteData(17);
- var offset = 0;
- buffer.setUint8(offset, 0x10); offset++;
- buffer.setUint16(offset, 65535, Endianness.LITTLE_ENDIAN); offset += 2;
- buffer.setUint32(offset, 65536, Endianness.LITTLE_ENDIAN); offset += 4;
- buffer.setUint64(offset, 0xFFFFFFFFFFFFFFFF, Endianness.LITTLE_ENDIAN); offset += 8;
- buffer.setUint8(offset, 0); offset++;
- buffer.setUint8(offset, 0xff); offset++;
- assert(_listEquals(buffer.buffer.asUint8List(),
- result.data.buffer.asUint8List()));
- }
- {
- var input = "[s8]-0x800 [s1]-128\t[s2]+0 [s4]-40";
- var result = parse(input);
-
- // Check the parse results.
- var expected = [new _SignedEntry(8, -0x800),
- new _SignedEntry(1, -128),
- new _SignedEntry(2, 0),
- new _SignedEntry(4, -40)];
- assert(_listEquals(result._entries, expected));
-
- // Check the bits.
- var buffer = new ByteData(15);
- var offset = 0;
- buffer.setInt64(offset, -0x800, Endianness.LITTLE_ENDIAN); offset += 8;
- buffer.setInt8(offset, -128); offset += 1;
- buffer.setInt16(offset, 0, Endianness.LITTLE_ENDIAN); offset += 2;
- buffer.setInt32(offset, -40, Endianness.LITTLE_ENDIAN); offset += 4;
- assert(_listEquals(buffer.buffer.asUint8List(),
- result.data.buffer.asUint8List()));
- }
- {
- var input = "[b]00001011 [b]10000000 // hello world\r [b]00000000";
- var result = parse(input);
-
- // Check the parse results;
- var expected = [new _UnsignedEntry(1, 11),
- new _UnsignedEntry(1, 128),
- new _UnsignedEntry(1, 0)];
- assert(_listEquals(result._entries, expected));
-
- // Check the bits.
- var buffer = new ByteData(3);
- var offset = 0;
- buffer.setUint8(offset, 11); offset += 1;
- buffer.setUint8(offset, 128); offset += 1;
- buffer.setUint8(offset, 0); offset += 1;
- assert(_listEquals(buffer.buffer.asUint8List(),
- result.data.buffer.asUint8List()));
- }
- {
- var input = "[f]+.3e9 [d]-10.03";
- var result = parse(input);
-
- // Check the parse results.
- var expected = [new _FloatEntry(4, 0.3e9),
- new _FloatEntry(8,-10.03)];
- assert(_listEquals(result._entries, expected));
-
- // Check the bits.
- var buffer = new ByteData(12);
- var offset = 0;
- buffer.setFloat32(offset, 0.3e9, Endianness.LITTLE_ENDIAN); offset += 4;
- buffer.setFloat64(offset, -10.03, Endianness.LITTLE_ENDIAN); offset += 8;
- assert(_listEquals(buffer.buffer.asUint8List(),
- result.data.buffer.asUint8List()));
- }
- {
- var input = "[dist4]foo 0 [dist8]bar 0 [anchr]foo [anchr]bar";
- var result = parse(input);
-
- // Check the parse results.
- var expected = [new _DistEntry(4, "foo"),
- new _UnsignedEntry(1, 0),
- new _DistEntry(8, "bar"),
- new _UnsignedEntry(1, 0),
- new _AnchrEntry("foo"),
- new _AnchrEntry("bar")];
- assert(_listEquals(result._entries, expected));
-
- // Check the bits.
- var buffer = new ByteData(14);
- var offset = 0;
- buffer.setUint32(offset, 14, Endianness.LITTLE_ENDIAN); offset += 4;
- buffer.setUint8(offset, 0); offset += 1;
- buffer.setUint64(offset, 9, Endianness.LITTLE_ENDIAN); offset += 8;
- buffer.setUint8(offset, 0); offset += 1;
- assert(_listEquals(buffer.buffer.asUint8List(),
- result.data.buffer.asUint8List()));
- }
- {
- var input = "// This message has handles! \n[handles]50 [u8]2";
- var result = parse(input);
- var expected = [new _HandlesEntry(50),
- new _UnsignedEntry(8, 2)];
- assert(_listEquals(result._entries, expected));
- }
- {
- var errorInputs = ["/ hello world",
- "[u1]x",
- "[u2]-1000",
- "[u1]0x100",
- "[s2]-0x8001",
- "[b]1",
- "[b]1111111k",
- "[dist4]unmatched",
- "[anchr]hello [dist8]hello",
- "[dist4]a [dist4]a [anchr]a",
- "[dist4]a [anchr]a [dist4]a [anchr]a",
- "0 [handles]50"];
- for (var input in errorInputs) {
- try {
- var result = parse(input);
- assert(false);
- } on ValidationParseError catch(e) {
- // Pass.
- }
- }
- }
-}
-
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