Implementation of the 'edit.getFixes' API in server.

pkg/analysis_server/lib/src/computer/error.dart

+// Copyright (c) 2014, 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.
+
+library computer.error;
+
+import 'package:analysis_server/src/computer/element.dart';
+import 'package:analysis_services/constants.dart';
+import 'package:analysis_services/json.dart';
+import 'package:analyzer/src/generated/error.dart' as engine;
+import 'package:analyzer/src/generated/source.dart' as engine;
+
+
+/**
+ * An indication of an error, warning, or hint that was produced by the
+ * analysis. 
+ */
+class AnalysisError implements HasToJson {
+  final String severity;
+  final String type;
+  final Location location;
+  final String message;
+  final String correction;
+
+  AnalysisError(this.severity, this.type, this.location, this.message,
+      this.correction);
+
+  factory AnalysisError.fromEngine(engine.LineInfo lineInfo,
+      engine.AnalysisError error) {
+    engine.ErrorCode errorCode = error.errorCode;
+    // prepare location
+    Location location;
+    {
+      String file = error.source.fullName;
+      int offset = error.offset;
+      int length = error.length;
+      int startLine = -1;
+      int startColumn = -1;
+      if (lineInfo != null) {
+        engine.LineInfo_Location lineLocation = lineInfo.getLocation(offset);
+        if (lineLocation != null) {
+          startLine = lineLocation.lineNumber;
+          startColumn = lineLocation.columnNumber;
+        }
+      }
+      location = new Location(file, offset, length, startLine, startColumn);
+    }
+    // done
+    String severity = errorCode.errorSeverity.toString();
+    String type = errorCode.type.toString();
+    String message = error.message;
+    String correction = errorCode.correction;
+    return new AnalysisError(severity, type, location, message, correction);
+  }
+
+  @override
+  Map<String, Object> toJson() {
+    Map<String, Object> json = {
+      SEVERITY: severity,
+      TYPE: type,
+      LOCATION: location.toJson(),
+      MESSAGE: message
+    };
+    if (correction != null) {
+      json[CORRECTION] = correction;
+    }
+    return json;
+  }
+
+  @override
+  String toString() {
+    return 'AnalysisError(location=$location message=$message; '
+        'severity=$severity; type=$type; correction=$correction';
+  }
+
+  static AnalysisError fromJson(Map<String, Object> json) {
+    return new AnalysisError(
+        json[SEVERITY],
+        json[TYPE],
+        new Location.fromJson(json[LOCATION]),
+        json[MESSAGE],
+        json[CORRECTION]);
+  }
+}