Implementation of the 'analysis.getErrors' API.

pkg/analysis_server/lib/src/domain_analysis.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 domain.analysis;
 
 import 'dart:collection';
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/computer/computer_hover.dart';
 import 'package:analysis_server/src/constants.dart';
+import 'package:analysis_server/src/operation/operation_analysis.dart';
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_services/constants.dart';
+import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/engine.dart';
-import 'package:analyzer/src/generated/ast.dart';
+import 'package:analyzer/src/generated/error.dart';
 
 /**
  * Instances of the class [AnalysisDomainHandler] implement a [RequestHandler]
  * that handles requests in the `analysis` domain.
  */
 class AnalysisDomainHandler implements RequestHandler {
   /**
    * The analysis server that is using this handler to process requests.
    */
   final AnalysisServer server;
 
   /**
    * Initialize a newly created handler to handle requests for the given [server].
    */
   AnalysisDomainHandler(this.server);
 
   /**
+   * Implement the `analysis.getErrors` request.
+   */
+  Response getErrors(Request request) {
+    String file = request.getRequiredParameter(FILE).asString();
+    server.onFileAnalysisComplete(file).then((_) {
+      Response response = new Response(request.id);
+      AnalysisErrorInfo errorInfo = server.getErrors(file);
+      if (errorInfo == null) {
+        response.setResult(ERRORS, []);
+      } else {
+        response.setResult(ERRORS, errorInfo.errors.map((AnalysisError error) {
+          return errorToJson(errorInfo.lineInfo, error);
+        }).toList());
+      }
+      server.sendResponse(response);
+    });
+    // delay response
+    return Response.DELAYED_RESPONSE;
+  }
+
+  /**
    * Implement the `analysis.getHover` request.
    */
-  Response getAnalysisHover(Request request) {
+  Response getHover(Request request) {
     // prepare parameters
     String file = request.getRequiredParameter(FILE).asString();
     int offset = request.getRequiredParameter(OFFSET).asInt();
     // prepare hovers
     List<Hover> hovers = <Hover>[];
     List<CompilationUnit> units = server.getResolvedCompilationUnits(file);
     for (CompilationUnit unit in units) {
-      Hover hoverInformation = new DartUnitHoverComputer(unit, offset).compute();
+      Hover hoverInformation =
+          new DartUnitHoverComputer(unit, offset).compute();
       if (hoverInformation != null) {
         hovers.add(hoverInformation);
       }
     }
     // send response
     Response response = new Response(request.id);
     response.setResult(HOVERS, hovers);
     return response;
   }
 
   @override
   Response handleRequest(Request request) {
     try {
       String requestName = request.method;
-      if (requestName == ANALYSIS_GET_HOVER) {
-        return getAnalysisHover(request);
+      if (requestName == ANALYSIS_GET_ERRORS) {
+        return getErrors(request);
+      } else if (requestName == ANALYSIS_GET_HOVER) {
+        return getHover(request);
       } else if (requestName == ANALYSIS_SET_ANALYSIS_ROOTS) {
         return setAnalysisRoots(request);
       } else if (requestName == ANALYSIS_SET_PRIORITY_FILES) {
         return setPriorityFiles(request);
       } else if (requestName == ANALYSIS_SET_SUBSCRIPTIONS) {
         return setSubscriptions(request);
       } else if (requestName == ANALYSIS_UPDATE_CONTENT) {
         return updateContent(request);
       } else if (requestName == ANALYSIS_UPDATE_OPTIONS) {
         return updateOptions(request);
@@ skipping 36 matching lines @@
    * Implement the 'analysis.setSubscriptions' request.
    */
   Response setSubscriptions(Request request) {
     // parse subscriptions
     Map<AnalysisService, Set<String>> subMap;
     {
       RequestDatum subDatum = request.getRequiredParameter(SUBSCRIPTIONS);
       Map<String, List<String>> subStringMap = subDatum.asStringListMap();
       subMap = new HashMap<AnalysisService, Set<String>>();
       subStringMap.forEach((String serviceName, List<String> paths) {
-        AnalysisService service = Enum2.valueOf(AnalysisService.VALUES,
-            serviceName);
+        AnalysisService service =
+            Enum2.valueOf(AnalysisService.VALUES, serviceName);
         if (service == null) {
-          throw new RequestFailure(new Response.unknownAnalysisService(request,
-              serviceName));
+          throw new RequestFailure(
+              new Response.unknownAnalysisService(request, serviceName));
         }
         subMap[service] = new HashSet.from(paths);
       });
     }
     server.setAnalysisSubscriptions(subMap);
     return new Response(request.id);
   }
 
   /**
    * Implement the 'analysis.updateContent' request.
    */
   Response updateContent(Request request) {
     var changes = new HashMap<String, ContentChange>();
     RequestDatum filesDatum = request.getRequiredParameter(FILES);
     filesDatum.forEachMap((file, changeDatum) {
       var change = new ContentChange();
-      change.content = changeDatum[CONTENT].isNull ? null :
+      change.content = changeDatum[CONTENT].isNull ?
+          null :
           changeDatum[CONTENT].asString();
       if (changeDatum.hasKey(OFFSET)) {
         change.offset = changeDatum[OFFSET].asInt();
         change.oldLength = changeDatum[OLD_LENGTH].asInt();
         change.newLength = changeDatum[NEW_LENGTH].asInt();
       }
       changes[file] = change;
     });
     server.updateContent(changes);
     return new Response(request.id);
@@ skipping 38 matching lines @@
         bool optionValue = optionDatum.asBool();
         updaters.add((AnalysisOptionsImpl options) {
           options.dart2jsHint = optionValue;
         });
       } else if (optionName == GENERATE_HINTS) {
         bool optionValue = optionDatum.asBool();
         updaters.add((AnalysisOptionsImpl options) {
           options.hint = optionValue;
         });
       } else {
-        throw new RequestFailure(new Response.unknownOptionName(request,
-            optionName));
+        throw new RequestFailure(
+            new Response.unknownOptionName(request, optionName));
       }
     });
     server.updateOptions(updaters);
     return new Response(request.id);
   }
 
   /**
    * Implement the 'analysis.updateSdks' request.
    */
   Response updateSdks(Request request) {
@@ skipping 14 matching lines @@
 
 /**
  * A description of the change to the content of a file.
  */
 class ContentChange {
   String content;
   int offset;
   int oldLength;
   int newLength;
 }