Paul Berry
45092fd0aa
Now instead of annotating nodes as "added" or "removed", we explicitly show which nodes are present only in analyzer output and which nodes are present only in CFE output. Change-Id: I9ea041610e015238136531649ebb48d4d7c075ae Reviewed-on: https://dart-review.googlesource.com/c/79642 Auto-Submit: Paul Berry <paulberry@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
70 lines
2.8 KiB
Dart
70 lines
2.8 KiB
Dart
// Copyright (c) 2018, 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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import 'package:analyzer_fe_comparison/src/analyzer.dart' as analyzer;
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import 'package:analyzer_fe_comparison/src/comparison_node.dart';
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import 'package:analyzer_fe_comparison/src/kernel.dart' as kernel;
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import 'package:path/path.dart' as path;
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/// Compares the analyzer and kernel representations of a package, and prints
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/// the resulting diff.
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void comparePackages(
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String platformPath, String projectLibPath, String packagesFilePath) async {
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ComparisonNode analyzerNode = await analyzer.analyzePackage(projectLibPath);
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var packagesFileUri = Uri.file(packagesFilePath);
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var inputs = <Uri>[];
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for (var library in analyzerNode.children) {
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inputs.add(Uri.parse(library.text));
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}
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var platformUri = Uri.file(platformPath);
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ComparisonNode kernelNode =
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await kernel.analyzePackage(inputs, packagesFileUri, platformUri);
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print(ComparisonNode.diff(kernelNode, analyzerNode, 'CFE', 'analyzer'));
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}
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/// Compares the analyzer and kernel representations of a test file, and prints
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/// the resulting diff.
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///
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/// Only libraries reached by a "file:" URI are compared.
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void compareTestPrograms(
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String sourcePath, String platformPath, String packagesFilePath) async {
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var packagesFileUri = Uri.file(packagesFilePath);
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var platformUri = Uri.file(platformPath);
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ComparisonNode kernelNode = await kernel.analyzeProgram(
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path.toUri(sourcePath),
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packagesFileUri,
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platformUri,
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(uri) => uri.scheme == 'file');
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if (kernelNode.text == 'Error occurred') {
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// TODO(paulberry): really we should verify that the analyzer detects an
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// error as well. But that's not easy to do right now because we use the
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// front end to chase imports so that we know which files to pass to the
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// analyzer, and we can't rely on the front end import chasing when an error
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// occurred.
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print('No differences found (skipped due to front end compilation error)');
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return;
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}
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String startingPath;
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var inputs = <String>[];
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for (var library in kernelNode.children) {
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var filePath = path.fromUri(Uri.parse(library.text));
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if (startingPath == null) {
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startingPath = path.dirname(filePath);
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} else {
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while (!path.isWithin(startingPath, filePath)) {
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startingPath = path.dirname(startingPath);
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}
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}
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inputs.add(filePath);
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}
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ComparisonNode analyzerNode =
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await analyzer.analyzeFiles(startingPath, inputs);
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if (kernelNode == analyzerNode) {
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print('No differences found!');
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} else {
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print('Differences found:');
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print(ComparisonNode.diff(kernelNode, analyzerNode, 'CFE', 'analyzer'));
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}
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}
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