Store the result of type inference in summaries.

pkg/analyzer/lib/src/summary/summarize_ast.dart

 // Copyright (c) 2016, 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 serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/src/generated/scanner.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
@@ skipping 375 matching lines @@
    * [UnlinkedExecutable].
    */
   UnlinkedExecutableBuilder serializeExecutable(
       SimpleIdentifier name,
       bool isGetter,
       bool isSetter,
       TypeName returnType,
       FormalParameterList formalParameters,
       FunctionBody body,
       bool isTopLevel,
-      bool isStatic,
+      bool isDeclaredStatic,
       Comment documentationComment,
       TypeParameterList typeParameters,
       bool isExternal) {
     int oldScopesLength = scopes.length;
     _TypeParameterScope typeParameterScope = new _TypeParameterScope();
     scopes.add(typeParameterScope);
     UnlinkedExecutableBuilder b = new UnlinkedExecutableBuilder();
     String nameString = name.name;
     if (isGetter) {
       b.kind = UnlinkedExecutableKind.getter;
     } else if (isSetter) {
       b.kind = UnlinkedExecutableKind.setter;
       nameString = '$nameString=';
     } else {
       b.kind = UnlinkedExecutableKind.functionOrMethod;
     }
     b.isAbstract = body is EmptyFunctionBody;
     b.name = nameString;
     b.nameOffset = name.offset;
     b.typeParameters =
         serializeTypeParameters(typeParameters, typeParameterScope);
     if (!isTopLevel) {
-      b.isStatic = isStatic;
+      b.isStatic = isDeclaredStatic;
     }
     b.returnType = serializeTypeName(returnType);
     b.isExternal = isExternal;
+    bool isSemanticallyStatic = isTopLevel || isDeclaredStatic;
     if (formalParameters != null) {
       b.parameters = formalParameters.parameters
           .map((FormalParameter p) => p.accept(this))
           .toList();
+      if (!isSemanticallyStatic) {
+        for (int i = 0; i < formalParameters.parameters.length; i++) {
+          if (!b.parameters[i].isFunctionTyped &&
+              b.parameters[i].type == null) {
+            b.parameters[i].inferredTypeSlot = assignTypeSlot();
+          }
+        }
+      }
     }
     b.documentationComment = serializeDocumentation(documentationComment);
+    if (returnType == null && !isSemanticallyStatic) {
+      b.inferredReturnTypeSlot = assignTypeSlot();
+    }
     scopes.removeLast();
     assert(scopes.length == oldScopesLength);
     return b;
   }
 
   /**
    * Serialize the return type and parameters of a function-typed formal
    * parameter and store them in [b].
    */
   void serializeFunctionTypedParameterDetails(UnlinkedParamBuilder b,
@@ skipping 125 matching lines @@
       }
       return typeParameters.typeParameters.map(visitTypeParameter).toList();
     }
     return const <UnlinkedTypeParamBuilder>[];
   }
 
   /**
    * Serialize the given [variables] into [UnlinkedVariable]s, and store them
    * in [this.variables].
    */
-  void serializeVariables(VariableDeclarationList variables, bool isStatic,
-      Comment documentationComment) {
+  void serializeVariables(VariableDeclarationList variables,
+      bool isDeclaredStatic, Comment documentationComment, bool isField) {
     for (VariableDeclaration variable in variables.variables) {
       UnlinkedVariableBuilder b = new UnlinkedVariableBuilder();
       b.isFinal = variables.isFinal;
       b.isConst = variables.isConst;
-      b.isStatic = isStatic;
+      b.isStatic = isDeclaredStatic;
       b.name = variable.name.name;
       b.nameOffset = variable.name.offset;
       b.type = serializeTypeName(variables.type);
       b.documentationComment = serializeDocumentation(documentationComment);
       if (variable.isConst) {
         Expression initializer = variable.initializer;
         if (initializer != null) {
           b.constExpr = serializeConstExpr(initializer);
         }
       }
       if (variable.initializer != null &&
           (variables.isFinal || variables.isConst)) {
         b.propagatedTypeSlot = assignTypeSlot();
       }
+      bool isSemanticallyStatic = !isField || isDeclaredStatic;
+      if (variables.type == null &&
+          (variable.initializer != null || !isSemanticallyStatic)) {
+        b.inferredTypeSlot = assignTypeSlot();
+      }
       this.variables.add(b);
     }
   }
 
   @override
   void visitClassDeclaration(ClassDeclaration node) {
     TypeName superclass =
         node.extendsClause == null ? null : node.extendsClause.superclass;
     serializeClass(
         node.abstractKeyword,
@@ skipping 64 matching lines @@
 
   @override
   void visitExportDirective(ExportDirective node) {
     UnlinkedExportNonPublicBuilder b = new UnlinkedExportNonPublicBuilder(
         uriOffset: node.uri.offset, uriEnd: node.uri.end, offset: node.offset);
     exports.add(b);
   }
 
   @override
   void visitFieldDeclaration(FieldDeclaration node) {
-    serializeVariables(
-        node.fields, node.staticKeyword != null, node.documentationComment);
+    serializeVariables(node.fields, node.staticKeyword != null,
+        node.documentationComment, true);
   }
 
   @override
   UnlinkedParamBuilder visitFieldFormalParameter(FieldFormalParameter node) {
     UnlinkedParamBuilder b = serializeParameter(node);
     b.isInitializingFormal = true;
     if (node.type != null || node.parameters != null) {
       b.isFunctionTyped = node.parameters != null;
       if (node.parameters != null) {
         serializeFunctionTypedParameterDetails(b, node.type, node.parameters);
@@ skipping 108 matching lines @@
 
   @override
   UnlinkedParamBuilder visitSimpleFormalParameter(SimpleFormalParameter node) {
     UnlinkedParamBuilder b = serializeParameter(node);
     b.type = serializeTypeName(node.type);
     return b;
   }
 
   @override
   void visitTopLevelVariableDeclaration(TopLevelVariableDeclaration node) {
-    serializeVariables(node.variables, false, node.documentationComment);
+    serializeVariables(node.variables, false, node.documentationComment, false);
   }
 
   @override
   UnlinkedTypeParamBuilder visitTypeParameter(TypeParameter node) {
     UnlinkedTypeParamBuilder b = new UnlinkedTypeParamBuilder();
     b.name = node.name.name;
     b.nameOffset = node.name.offset;
     if (node.bound != null) {
       b.bound = serializeTypeName(node.bound);
     }
@@ skipping 12 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }