move relevance computation from client to server

pkg/analysis_server/lib/src/services/completion/local_computer.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 services.completion.computer.dart.local;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' as protocol show Element,
     ElementKind;
@@ skipping 189 matching lines @@
   final bool typesOnly;
   final bool excludeVoidReturn;
 
   _LocalVisitor(this.request, int offset, this.typesOnly,
       this.excludeVoidReturn)
       : super(offset);
 
   @override
   void declaredClass(ClassDeclaration declaration) {
     bool isDeprecated = _isDeprecated(declaration);
-    CompletionSuggestion suggestion =
-        _addSuggestion(declaration.name, NO_RETURN_TYPE, isDeprecated);
+    CompletionSuggestion suggestion = _addSuggestion(
+        declaration.name,
+        NO_RETURN_TYPE,
+        isDeprecated,
+        COMPLETION_RELEVANCE_DEFAULT);
     if (suggestion != null) {
       suggestion.element = _createElement(
           protocol.ElementKind.CLASS,
           declaration.name,
           returnType: NO_RETURN_TYPE,
           isAbstract: declaration.isAbstract,
           isDeprecated: isDeprecated);
     }
   }
 
   @override
   void declaredClassTypeAlias(ClassTypeAlias declaration) {
     bool isDeprecated = _isDeprecated(declaration);
-    CompletionSuggestion suggestion =
-        _addSuggestion(declaration.name, NO_RETURN_TYPE, isDeprecated);
+    CompletionSuggestion suggestion = _addSuggestion(
+        declaration.name,
+        NO_RETURN_TYPE,
+        isDeprecated,
+        COMPLETION_RELEVANCE_DEFAULT);
     if (suggestion != null) {
       suggestion.element = _createElement(
           protocol.ElementKind.CLASS_TYPE_ALIAS,
           declaration.name,
           returnType: NO_RETURN_TYPE,
           isAbstract: true,
           isDeprecated: isDeprecated);
     }
   }
 
   @override
   void declaredField(FieldDeclaration fieldDecl, VariableDeclaration varDecl) {
     if (typesOnly) {
       return;
     }
     bool isDeprecated = _isDeprecated(fieldDecl) || _isDeprecated(varDecl);
     TypeName type = fieldDecl.fields.type;
-    CompletionSuggestion suggestion =
-        _addSuggestion(varDecl.name, type, isDeprecated, classDecl: fieldDecl.parent);
+    CompletionSuggestion suggestion = _addSuggestion(
+        varDecl.name,
+        type,
+        isDeprecated,
+        DART_RELEVANCE_LOCAL_FIELD,
+        classDecl: fieldDecl.parent);
     if (suggestion != null) {
       suggestion.element = _createElement(
           protocol.ElementKind.FIELD,
           varDecl.name,
           returnType: type,
           isDeprecated: isDeprecated);
     }
   }
 
   @override
   void declaredFunction(FunctionDeclaration declaration) {
     if (typesOnly) {
       return;
     }
     TypeName returnType = declaration.returnType;
     bool isDeprecated = _isDeprecated(declaration);
     protocol.ElementKind kind;
+    int defaultRelevance = COMPLETION_RELEVANCE_DEFAULT;
     if (declaration.isGetter) {
       kind = protocol.ElementKind.GETTER;
+      defaultRelevance = DART_RELEVANCE_LOCAL_ACCESSOR;
     } else if (declaration.isSetter) {
       if (excludeVoidReturn) {
         return;
       }
       kind = protocol.ElementKind.SETTER;
       returnType = NO_RETURN_TYPE;
+      defaultRelevance = DART_RELEVANCE_LOCAL_ACCESSOR;
     } else {
       if (excludeVoidReturn && _isVoid(returnType)) {
         return;
       }
       kind = protocol.ElementKind.FUNCTION;
+      defaultRelevance = DART_RELEVANCE_LOCAL_FUNCTION;
     }
-    CompletionSuggestion suggestion =
-        _addSuggestion(declaration.name, returnType, isDeprecated);
+    CompletionSuggestion suggestion = _addSuggestion(
+        declaration.name,
+        returnType,
+        isDeprecated,
+        defaultRelevance);
     if (suggestion != null) {
       FormalParameterList param = declaration.functionExpression.parameters;
       suggestion.element = _createElement(
           kind,
           declaration.name,
           parameters: param != null ? param.toSource() : null,
           returnType: returnType,
           isDeprecated: isDeprecated);
       if (kind == protocol.ElementKind.FUNCTION) {
         _addParameterInfo(
             suggestion,
             declaration.functionExpression.parameters);
       }
     }
   }
 
   @override
   void declaredFunctionTypeAlias(FunctionTypeAlias declaration) {
     bool isDeprecated = _isDeprecated(declaration);
     TypeName returnType = declaration.returnType;
-    CompletionSuggestion suggestion =
-        _addSuggestion(declaration.name, returnType, isDeprecated);
+    CompletionSuggestion suggestion = _addSuggestion(
+        declaration.name,
+        returnType,
+        isDeprecated,
+        COMPLETION_RELEVANCE_DEFAULT);
     if (suggestion != null) {
       // TODO (danrubel) determine parameters and return type
       suggestion.element = _createElement(
           protocol.ElementKind.FUNCTION_TYPE_ALIAS,
           declaration.name,
           returnType: returnType,
           isAbstract: true,
           isDeprecated: isDeprecated);
     }
   }
 
   @override
   void declaredLabel(Label label, bool isCaseLabel) {
     // ignored
   }
 
   @override
   void declaredLocalVar(SimpleIdentifier name, TypeName type) {
     if (typesOnly) {
       return;
     }
-    CompletionSuggestion suggestion = _addSuggestion(name, type, false);
+    CompletionSuggestion suggestion =
+        _addSuggestion(name, type, false, DART_RELEVANCE_LOCAL_VARIABLE);
     if (suggestion != null) {
       suggestion.element =
           _createElement(protocol.ElementKind.LOCAL_VARIABLE, name, returnType: type);
     }
   }
 
   @override
   void declaredMethod(MethodDeclaration declaration) {
     if (typesOnly) {
       return;
     }
     protocol.ElementKind kind;
     String parameters;
     TypeName returnType = declaration.returnType;
+    int defaultRelevance = COMPLETION_RELEVANCE_DEFAULT;
     if (declaration.isGetter) {
       kind = protocol.ElementKind.GETTER;
       parameters = null;
+      defaultRelevance = DART_RELEVANCE_LOCAL_ACCESSOR;
     } else if (declaration.isSetter) {
       if (excludeVoidReturn) {
         return;
       }
       kind = protocol.ElementKind.SETTER;
       returnType = NO_RETURN_TYPE;
+      defaultRelevance = DART_RELEVANCE_LOCAL_ACCESSOR;
     } else {
       if (excludeVoidReturn && _isVoid(returnType)) {
         return;
       }
       kind = protocol.ElementKind.METHOD;
       parameters = declaration.parameters.toSource();
+      defaultRelevance = DART_RELEVANCE_LOCAL_METHOD;
     }
     bool isDeprecated = _isDeprecated(declaration);
     CompletionSuggestion suggestion = _addSuggestion(
         declaration.name,
         returnType,
         isDeprecated,
+        defaultRelevance,
         classDecl: declaration.parent);
     if (suggestion != null) {
       suggestion.element = _createElement(
           kind,
           declaration.name,
           parameters: parameters,
           returnType: returnType,
           isAbstract: declaration.isAbstract,
           isDeprecated: isDeprecated);
       if (kind == protocol.ElementKind.METHOD) {
         _addParameterInfo(suggestion, declaration.parameters);
       }
     }
   }
 
   @override
   void declaredParam(SimpleIdentifier name, TypeName type) {
     if (typesOnly) {
       return;
     }
-    CompletionSuggestion suggestion = _addSuggestion(name, type, false);
+    CompletionSuggestion suggestion =
+        _addSuggestion(name, type, false, DART_RELEVANCE_PARAMETER);
     if (suggestion != null) {
       suggestion.element =
           _createElement(protocol.ElementKind.PARAMETER, name, returnType: type);
     }
   }
 
   @override
   void declaredTopLevelVar(VariableDeclarationList varList,
       VariableDeclaration varDecl) {
     if (typesOnly) {
       return;
     }
     bool isDeprecated = _isDeprecated(varList) || _isDeprecated(varDecl);
-    CompletionSuggestion suggestion =
-        _addSuggestion(varDecl.name, varList.type, isDeprecated);
+    CompletionSuggestion suggestion = _addSuggestion(
+        varDecl.name,
+        varList.type,
+        isDeprecated,
+        DART_RELEVANCE_LOCAL_TOP_LEVEL_VARIABLE);
     if (suggestion != null) {
       suggestion.element = _createElement(
           protocol.ElementKind.TOP_LEVEL_VARIABLE,
           varDecl.name,
           returnType: varList.type,
           isDeprecated: isDeprecated);
     }
   }
 
   void _addParameterInfo(CompletionSuggestion suggestion,
@@ skipping 25 matching lines @@
       }
       return typeId.name;
     }).toList();
     suggestion.requiredParameterCount = paramList.where(
         (FormalParameter param) => param is! DefaultFormalParameter).length;
     suggestion.hasNamedParameters =
         paramList.any((FormalParameter param) => param.kind == ParameterKind.NAMED);
   }
 
   CompletionSuggestion _addSuggestion(SimpleIdentifier id, TypeName returnType,
-      bool isDeprecated, {ClassDeclaration classDecl}) {
+      bool isDeprecated, int defaultRelevance, {ClassDeclaration classDecl}) {
     if (id != null) {
       String completion = id.name;
       if (completion != null && completion.length > 0 && completion != '_') {
         CompletionSuggestion suggestion = new CompletionSuggestion(
             CompletionSuggestionKind.INVOCATION,
-            isDeprecated ? COMPLETION_RELEVANCE_LOW : COMPLETION_RELEVANCE_DEFAULT,
+            isDeprecated ? COMPLETION_RELEVANCE_LOW : defaultRelevance,
             completion,
             completion.length,
             0,
             isDeprecated,
             false,
             returnType: _nameForType(returnType));
         if (classDecl != null) {
           SimpleIdentifier identifier = classDecl.name;
           if (identifier != null) {
             String name = identifier.name;
@@ skipping 72 matching lines @@
     if (name == null || name.length <= 0) {
       return DYNAMIC;
     }
     TypeArgumentList typeArgs = type.typeArguments;
     if (typeArgs != null) {
       //TODO (danrubel) include type arguments
     }
     return name;
   }
 }