Fasta dill builders.

pkg/fasta/lib/src/dill/dill_library_builder.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 fasta.dill_library_builder;
+
+import 'package:kernel/ast.dart' show
+    Class,
+    ExpressionStatement,
+    Field,
+    FunctionNode,
+    Let,
+    Library,
+    ListLiteral,
+    Member,
+    Procedure,
+    StaticGet;
+
+import '../errors.dart' show
+    internalError;
+
+import '../kernel/kernel_builder.dart' show
+    Builder,
+    KernelInvalidTypeBuilder,
+    KernelTypeBuilder,
+    LibraryBuilder;
+
+import '../kernel/redirecting_factory_body.dart' show
+    RedirectingFactoryBody;
+
+import 'dill_class_builder.dart' show
+    DillClassBuilder;
+
+import 'dill_member_builder.dart' show
+    DillMemberBuilder;
+
+import 'dill_loader.dart' show
+    DillLoader;
+
+class DillLibraryBuilder extends LibraryBuilder<KernelTypeBuilder, Library> {
+  final Uri uri;
+
+  final Map<String, Builder> members = <String, Builder>{};
+
+  // TODO(ahe): Some export information needs to be serialized.
+  final Map<String, Builder> exports = <String, Builder>{};
+
+  final DillLoader loader;
+
+  Library library;
+
+  DillLibraryBuilder(this.uri, this.loader);
+
+  get scope => internalError("Scope not supported");
+
+  void addClass(Class cls) {
+    DillClassBuilder classBulder = new DillClassBuilder(cls, this);
+    addBuilder(cls.name, classBulder);
+    cls.procedures.forEach(classBulder.addMember);
+    cls.constructors.forEach(classBulder.addMember);
+    for (Field field in cls.fields) {
+      if (field.name.name == "_redirecting#") {
+        // This is a hack / work around for storing redirecting constructors in
+        // dill files. See `buildFactoryConstructor` in
+        // [package:kernel/analyzer/ast_from_analyzer.dart]
+        // (../../../../kernel/lib/analyzer/ast_from_analyzer.dart).
+        ListLiteral initializer = field.initializer;
+        for (StaticGet get in initializer.expressions) {
+          Procedure factory = get.target;
+          FunctionNode function = factory.function;
+          ExpressionStatement statement = function.body;
+          Let let = statement.expression;
+          StaticGet getTarget = let.variable.initializer;
+          function.body = new RedirectingFactoryBody(getTarget.target)
+              ..parent = function;
+        }
+        initializer.expressions.clear();
+      } else {
+        classBulder.addMember(field);
+      }
+    }
+  }
+
+  void addMember(Member member) {
+    String name = member.name.name;
+    if (name == "_exports#") {
+      // This is a hack / work around for storing exports in dill files. See
+      // [compile_platform.dart](../compile_platform.dart).
+      print("$uri: _exports# not implemented yet.");
+    } else {
+      addBuilder(name, new DillMemberBuilder(member, this));
+    }
+  }
+
+  Builder addBuilder(String name, Builder builder) {
+    if (name == null || name.isEmpty) return null;
+    members[name] = builder;
+    if (!name.startsWith("_")) {
+      exports[name] = builder;
+    }
+    return builder;
+  }
+
+  bool addToExportScope(String name, Builder member) {
+    return internalError("Not implemented yet.");
+  }
+
+  void addToScope(String name, Builder member) {
+    internalError("Not implemented yet.");
+  }
+
+  KernelInvalidTypeBuilder buildAmbiguousBuilder(
+      String name, Builder builder, Builder other) {
+    return new KernelInvalidTypeBuilder(name, this);
+  }
+}