Remove code that requires whole-program compile

lib/src/report.dart

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
-/// Summarizes the information produced by the checker.
-
-import 'dart:math' show max;
-
 import 'package:analyzer/src/generated/engine.dart' show AnalysisContext;
 import 'package:analyzer/src/generated/error.dart';
 import 'package:logging/logging.dart';
 import 'package:path/path.dart' as path;
-import 'package:source_span/source_span.dart';
-
 import 'utils.dart';
-import 'summary.dart';
 
 final _checkerLogger = new Logger('dev_compiler.checker');
 
 /// Collects errors, and then sorts them and sends them
 class ErrorCollector implements AnalysisErrorListener {
   final AnalysisErrorListener listener;
   final List<AnalysisError> _errors = [];
 
   ErrorCollector(this.listener);
 
@@ skipping 67 matching lines @@
     _checkerLogger.log(level, text);
   }
 }
 
 // TODO(jmesserly): remove log levels, instead just use severity.
 const _severityToLevel = const {
   ErrorSeverity.ERROR: Level.SEVERE,
   ErrorSeverity.WARNING: Level.WARNING,
   ErrorSeverity.INFO: Level.INFO
 };
-
-/// A reporter that gathers all the information in a [GlobalSummary].
-class SummaryReporter implements AnalysisErrorListener {
-  GlobalSummary result = new GlobalSummary();
-  final Level _level;
-  final AnalysisContext _context;
-
-  SummaryReporter(this._context, [this._level = Level.ALL]);
-
-  IndividualSummary _getIndividualSummary(Uri uri) {
-    if (uri.path.endsWith('.html')) {
-      return result.loose.putIfAbsent('$uri', () => new HtmlSummary('$uri'));
-    }
-
-    var container;
-    if (uri.scheme == 'package') {
-      var pname = path.split(uri.path)[0];
-      result.packages.putIfAbsent(pname, () => new PackageSummary(pname));
-      container = result.packages[pname].libraries;
-    } else if (uri.scheme == 'dart') {
-      container = result.system;
-    } else {
-      container = result.loose;
-    }
-    return container.putIfAbsent('$uri', () => new LibrarySummary('$uri'));
-  }
-
-  void onError(AnalysisError error) {
-    // Only summarize messages per configured logging level
-    var code = error.errorCode;
-    if (_severityToLevel[code.errorSeverity] < _level) return;
-
-    var span = _toSpan(_context, error);
-    var summary = _getIndividualSummary(error.source.uri);
-    if (summary is LibrarySummary) {
-      summary.recordSourceLines(error.source.uri, () {
-        // TODO(jmesserly): parsing is serious overkill for this.
-        // Should be cached, but still.
-        // On the other hand, if we are going to parse, we could get a much
-        // better source lines of code estimate by excluding things like
-        // comments, blank lines, and closing braces.
-        var unit = _context.parseCompilationUnit(error.source);
-        return unit.lineInfo.getLocation(unit.endToken.end).lineNumber;
-      });
-    }
-    summary.messages.add(new MessageSummary(errorCodeName(code),
-        code.errorSeverity.displayName, span, error.message));
-  }
-
-  // TODO(jmesserly): fix to not depend on SourceSpan. This will be really slow
-  // because it will reload source text from disk, for every single message...
-  SourceSpanWithContext _toSpan(AnalysisContext context, AnalysisError error) {
-    var source = error.source;
-    var lineInfo = context.computeLineInfo(source);
-    var content = context.getContents(source).data;
-    var start = error.offset;
-    var end = start + error.length;
-    return createSpanHelper(lineInfo, start, end, source, content);
-  }
-
-  void clearLibrary(Uri uri) {
-    (_getIndividualSummary(uri) as LibrarySummary).clear();
-  }
-
-  void clearHtml(Uri uri) {
-    HtmlSummary htmlSummary = result.loose['$uri'];
-    if (htmlSummary != null) htmlSummary.messages.clear();
-  }
-}
-
-/// Produces a string representation of the summary.
-String summaryToString(GlobalSummary summary) {
-  var counter = new _Counter();
-  summary.accept(counter);
-
-  var table = new _Table();
-  // Declare columns and add header
-  table.declareColumn('package');
-  table.declareColumn('AnalyzerError', abbreviate: true);
-
-  var activeInfoTypes = counter.totals.keys;
-  activeInfoTypes.forEach((t) => table.declareColumn(t, abbreviate: true));
-  table.declareColumn('LinesOfCode', abbreviate: true);
-  table.addHeader();
-
-  // Add entries for each package
-  appendCount(count) => table.addEntry(count == null ? 0 : count);
-  for (var package in counter.errorCount.keys) {
-    appendCount(package);
-    appendCount(counter.errorCount[package]['AnalyzerError']);
-    activeInfoTypes.forEach((t) => appendCount(counter.errorCount[package][t]));
-    appendCount(counter.linesOfCode[package]);
-  }
-
-  // Add totals, percents and a new header for quick reference
-  table.addEmptyRow();
-  table.addHeader();
-  table.addEntry('total');
-  appendCount(counter.totals['AnalyzerError']);
-  activeInfoTypes.forEach((t) => appendCount(counter.totals[t]));
-  appendCount(counter.totalLinesOfCode);
-
-  appendPercent(count, total) {
-    if (count == null) count = 0;
-    var value = (count * 100 / total).toStringAsFixed(2);
-    table.addEntry(value);
-  }
-
-  var totalLOC = counter.totalLinesOfCode;
-  table.addEntry('%');
-  appendPercent(counter.totals['AnalyzerError'], totalLOC);
-  activeInfoTypes.forEach((t) => appendPercent(counter.totals[t], totalLOC));
-  appendCount(100);
-
-  return table.toString();
-}
-
-/// Helper class to combine all the information in table form.
-class _Table {
-  int _totalColumns = 0;
-  int get totalColumns => _totalColumns;
-
-  /// Abbreviations, used to make headers shorter.
-  Map<String, String> abbreviations = {};
-
-  /// Width of each column.
-  List<int> widths = <int>[];
-
-  /// The header for each column (`header.length == totalColumns`).
-  List header = [];
-
-  /// Each row on the table. Note that all rows have the same size
-  /// (`rows[*].length == totalColumns`).
-  List<List> rows = [];
-
-  /// Whether we started adding entries. Indicates that no more columns can be
-  /// added.
-  bool _sealed = false;
-
-  /// Current row being built by [addEntry].
-  List _currentRow;
-
-  /// Add a column with the given [name].
-  void declareColumn(String name, {bool abbreviate: false}) {
-    assert(!_sealed);
-    var headerName = name;
-    if (abbreviate) {
-      // abbreviate the header by using only the capital initials.
-      headerName = name.replaceAll(new RegExp('[a-z]'), '');
-      while (abbreviations[headerName] != null) headerName = "$headerName'";
-      abbreviations[headerName] = name;
-    }
-    widths.add(max(5, headerName.length + 1) as int);
-    header.add(headerName);
-    _totalColumns++;
-  }
-
-  /// Add an entry in the table, creating a new row each time [totalColumns]
-  /// entries are added.
-  void addEntry(entry) {
-    if (_currentRow == null) {
-      _sealed = true;
-      _currentRow = [];
-    }
-    int pos = _currentRow.length;
-    assert(pos < _totalColumns);
-
-    widths[pos] = max(widths[pos], '$entry'.length + 1);
-    _currentRow.add('$entry');
-
-    if (pos + 1 == _totalColumns) {
-      rows.add(_currentRow);
-      _currentRow = [];
-    }
-  }
-
-  /// Add an empty row to divide sections of the table.
-  void addEmptyRow() {
-    var emptyRow = [];
-    for (int i = 0; i < _totalColumns; i++) {
-      emptyRow.add('-' * widths[i]);
-    }
-    rows.add(emptyRow);
-  }
-
-  /// Enter the header titles. OK to do so more than once in long tables.
-  void addHeader() {
-    rows.add(header);
-  }
-
-  /// Generates a string representation of the table to print on a terminal.
-  // TODO(sigmund): add also a .csv format
-  String toString() {
-    var sb = new StringBuffer();
-    sb.write('\n');
-    for (var row in rows) {
-      for (int i = 0; i < _totalColumns; i++) {
-        var entry = row[i];
-        // Align first column to the left, everything else to the right.
-        sb.write(
-            i == 0 ? entry.padRight(widths[i]) : entry.padLeft(widths[i] + 1));
-      }
-      sb.write('\n');
-    }
-    sb.write('\nWhere:\n');
-    for (var id in abbreviations.keys) {
-      sb.write('  $id:'.padRight(7));
-      sb.write(' ${abbreviations[id]}\n');
-    }
-    return sb.toString();
-  }
-}
-
-/// An example visitor that counts the number of errors per package and total.
-class _Counter extends RecursiveSummaryVisitor {
-  String _currentPackage;
-  String get currentPackage =>
-      _currentPackage != null ? _currentPackage : "*other*";
-  var sb = new StringBuffer();
-  Map<String, Map<String, int>> errorCount = <String, Map<String, int>>{};
-  Map<String, int> linesOfCode = <String, int>{};
-  Map<String, int> totals = <String, int>{};
-  int totalLinesOfCode = 0;
-
-  void visitGlobal(GlobalSummary global) {
-    if (!global.system.isEmpty) {
-      for (var lib in global.system.values) {
-        lib.accept(this);
-      }
-    }
-
-    if (!global.packages.isEmpty) {
-      for (var lib in global.packages.values) {
-        lib.accept(this);
-      }
-    }
-
-    if (!global.loose.isEmpty) {
-      for (var lib in global.loose.values) {
-        lib.accept(this);
-      }
-    }
-  }
-
-  void visitPackage(PackageSummary package) {
-    _currentPackage = package.name;
-    super.visitPackage(package);
-    _currentPackage = null;
-  }
-
-  void visitLibrary(LibrarySummary lib) {
-    super.visitLibrary(lib);
-    linesOfCode.putIfAbsent(currentPackage, () => 0);
-    linesOfCode[currentPackage] += lib.lines;
-    totalLinesOfCode += lib.lines;
-  }
-
-  visitMessage(MessageSummary message) {
-    var kind = message.kind;
-    errorCount.putIfAbsent(currentPackage, () => <String, int>{});
-    errorCount[currentPackage].putIfAbsent(kind, () => 0);
-    errorCount[currentPackage][kind]++;
-    totals.putIfAbsent(kind, () => 0);
-    totals[kind]++;
-  }
-}