Delete support for source mirrors

pkg/compiler/lib/src/mirrors/mirrors_util.dart

Index: pkg/compiler/lib/src/mirrors/mirrors_util.dart
diff --git a/pkg/compiler/lib/src/mirrors/mirrors_util.dart b/pkg/compiler/lib/src/mirrors/mirrors_util.dart
deleted file mode 100644
index 52eb0a902d0262fac098a7b2bdac10f449d2655c..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/mirrors/mirrors_util.dart
+++ /dev/null
@@ -1,425 +0,0 @@
-// Copyright (c) 2012, 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 mirrors_util;
-
-import 'dart:collection' show Queue, IterableBase;
-
-import 'source_mirrors.dart';
-
-//------------------------------------------------------------------------------
-// Utility functions for using the Mirror API
-//------------------------------------------------------------------------------
-
-String nameOf(DeclarationMirror mirror) =>
-    MirrorSystem.getName(mirror.simpleName);
-
-String qualifiedNameOf(DeclarationMirror mirror) =>
-    MirrorSystem.getName(mirror.qualifiedName);
-
-// TODO(johnniwinther): Handle private names.
-Symbol symbolOf(String name, [LibraryMirror library]) => new Symbol(name);
-
-/**
- * Return the display name for [mirror].
- *
- * The display name is the normal representation of the entity name. In most
- * cases the display name is the simple name, but for a setter 'foo=' the
- * display name is simply 'foo' and for the unary minus operator the display
- * name is 'operator -'. For 'dart:' libraries the display name is the URI and
- * not the library name, for instance 'dart:core' instead of 'dart.core'.
- *
- * The display name is not unique.
- */
-String displayName(DeclarationMirror mirror) {
-  if (mirror is LibraryMirror) {
-    LibraryMirror library = mirror;
-    if (library.uri.scheme == 'dart') {
-      return library.uri.toString();
-    }
-  } else if (mirror is MethodMirror) {
-    String simpleName = nameOf(mirror);
-    if (mirror.isSetter) {
-      // Remove trailing '='.
-      return simpleName.substring(0, simpleName.length - 1);
-    } else if (mirror.isOperator) {
-      return 'operator ${operatorName(mirror)}';
-    } else if (mirror.isConstructor) {
-      String className = displayName(mirror.owner);
-      if (simpleName == '') {
-        return className;
-      } else {
-        return '$className.$simpleName';
-      }
-    }
-  }
-  return MirrorSystem.getName(mirror.simpleName);
-}
-
-/**
- * Returns the operator name if [methodMirror] is an operator method,
- * for instance [:'<':] for [:operator <:] and [:'-':] for the unary minus
- * operator. Return [:null:] if [methodMirror] is not an operator method.
- */
-String operatorName(MethodMirror methodMirror) {
-  if (methodMirror.isOperator) {
-    if (methodMirror.simpleName == const Symbol('unary-')) {
-      return '-';
-    } else {
-      return nameOf(methodMirror);
-    }
-  }
-  return null;
-}
-
-/**
- * Returns an iterable over the type declarations directly inheriting from
- * the declaration of [type] within [mirrors].
- */
-Iterable<ClassMirror> computeSubdeclarations(
-    MirrorSystem mirrors, ClassMirror type) {
-  type = type.originalDeclaration;
-  var subtypes = <ClassMirror>[];
-  mirrors.libraries.forEach((_, library) {
-    library.declarations.values
-        .where((mirror) => mirror is ClassMirror)
-        .forEach((ClassMirror otherType) {
-      var superClass = otherType.superclass;
-      if (superClass != null) {
-        superClass = superClass.originalDeclaration;
-        if (superClass == type) {
-          subtypes.add(otherType);
-        }
-      }
-      final superInterfaces = otherType.superinterfaces;
-      for (ClassMirror superInterface in superInterfaces) {
-        superInterface = superInterface.originalDeclaration;
-        if (superInterface == type) {
-          subtypes.add(otherType);
-        }
-      }
-    });
-  });
-  return subtypes;
-}
-
-class HierarchyIterable extends IterableBase<ClassMirror> {
-  final bool includeType;
-  final ClassMirror type;
-
-  HierarchyIterable(this.type, {bool includeType})
-      : this.includeType = includeType;
-
-  Iterator<ClassMirror> get iterator =>
-      new HierarchyIterator(type, includeType: includeType);
-}
-
-/**
- * [HierarchyIterator] iterates through the class hierarchy of the provided
- * type.
- *
- * First the superclass relation is traversed, skipping [Object], next the
- * superinterface relation and finally is [Object] visited. The supertypes are
- * visited in breadth first order and a superinterface is visited more than once
- * if implemented through multiple supertypes.
- */
-class HierarchyIterator implements Iterator<ClassMirror> {
-  final Queue<ClassMirror> queue = new Queue<ClassMirror>();
-  ClassMirror object;
-  ClassMirror _current;
-
-  HierarchyIterator(ClassMirror type, {bool includeType}) {
-    if (includeType) {
-      queue.add(type);
-    } else {
-      push(type);
-    }
-  }
-
-  ClassMirror push(ClassMirror type) {
-    if (type.superclass != null) {
-      if (isObject(type.superclass)) {
-        object = type.superclass;
-      } else {
-        queue.addFirst(type.superclass);
-      }
-    }
-    queue.addAll(type.superinterfaces);
-    return type;
-  }
-
-  ClassMirror get current => _current;
-
-  bool moveNext() {
-    _current = null;
-    if (queue.isEmpty) {
-      if (object == null) return false;
-      _current = object;
-      object = null;
-      return true;
-    } else {
-      _current = push(queue.removeFirst());
-      return true;
-    }
-  }
-}
-
-LibraryMirror getLibrary(DeclarationMirror declaration) {
-  while (declaration != null && declaration is! LibraryMirror) {
-    declaration = declaration.owner;
-  }
-  return declaration;
-}
-
-Iterable<DeclarationMirror> membersOf(
-    Map<Symbol, DeclarationMirror> declarations) {
-  return declarations.values
-      .where((mirror) => mirror is MethodMirror || mirror is VariableMirror);
-}
-
-Iterable<TypeMirror> classesOf(Map<Symbol, DeclarationMirror> declarations) {
-  return new _TypeOfIterable<ClassMirror>(declarations.values);
-}
-
-Iterable<TypeMirror> typesOf(Map<Symbol, DeclarationMirror> declarations) {
-  return new _TypeOfIterable<TypeMirror>(declarations.values);
-}
-
-Iterable<MethodMirror> methodsOf(Map<Symbol, DeclarationMirror> declarations) {
-  return anyMethodOf(declarations).where((mirror) => mirror.isRegularMethod);
-}
-
-Iterable<MethodMirror> constructorsOf(
-    Map<Symbol, DeclarationMirror> declarations) {
-  return anyMethodOf(declarations).where((mirror) => mirror.isConstructor);
-}
-
-Iterable<MethodMirror> settersOf(Map<Symbol, DeclarationMirror> declarations) {
-  return anyMethodOf(declarations).where((mirror) => mirror.isSetter);
-}
-
-Iterable<MethodMirror> gettersOf(Map<Symbol, DeclarationMirror> declarations) {
-  return anyMethodOf(declarations).where((mirror) => mirror.isGetter);
-}
-
-Iterable<MethodMirror> anyMethodOf(
-    Map<Symbol, DeclarationMirror> declarations) {
-  return new _TypeOfIterable<MethodMirror>(declarations.values);
-}
-
-Iterable<VariableMirror> variablesOf(
-    Map<Symbol, DeclarationMirror> declarations) {
-  return new _TypeOfIterable<VariableMirror>(declarations.values);
-}
-
-class _TypeOfIterable<T> extends IterableBase<T> {
-  final Iterable _source;
-
-  _TypeOfIterable(this._source);
-
-  Iterator<T> get iterator => new _TypeOfIterator<T>(_source.iterator);
-}
-
-class _TypeOfIterator<T> implements Iterator<T> {
-  final Iterator _source;
-
-  T get current => _source.current;
-
-  _TypeOfIterator(this._source);
-
-  bool moveNext() {
-    while (_source.moveNext()) {
-      if (_source.current is T) {
-        return true;
-      }
-    }
-    return false;
-  }
-}
-
-bool isObject(TypeMirror mirror) =>
-    mirror is ClassMirror && mirror.superclass == null;
-
-/// Returns `true` if [cls] is declared in a private dart library.
-bool isFromPrivateDartLibrary(ClassMirror cls) {
-  if (isMixinApplication(cls)) cls = cls.mixin;
-  var uri = getLibrary(cls).uri;
-  return uri.scheme == 'dart' && uri.path.startsWith('_');
-}
-
-/// Returns `true` if [mirror] reflects a mixin application.
-bool isMixinApplication(Mirror mirror) {
-  return mirror is ClassMirror && mirror.mixin != mirror;
-}
-
-/**
- * Returns the superclass of [cls] skipping unnamed mixin applications.
- *
- * For instance, for all of the following definitions this method returns [:B:].
- *
- *     class A extends B {}
- *     class A extends B with C1, C2 {}
- *     class A extends B implements D1, D2 {}
- *     class A extends B with C1, C2 implements D1, D2 {}
- *     class A = B with C1, C2;
- *     abstract class A = B with C1, C2 implements D1, D2;
- */
-ClassSourceMirror getSuperclass(ClassSourceMirror cls) {
-  ClassSourceMirror superclass = cls.superclass;
-  while (isMixinApplication(superclass) && superclass.isNameSynthetic) {
-    superclass = superclass.superclass;
-  }
-  return superclass;
-}
-
-/**
- * Returns the mixins directly applied to [cls].
- *
- * For instance, for all of the following definitions this method returns
- * [:C1, C2:].
- *
- *     class A extends B with C1, C2 {}
- *     class A extends B with C1, C2 implements D1, D2 {}
- *     class A = B with C1, C2;
- *     abstract class A = B with C1, C2 implements D1, D2;
- */
-Iterable<ClassSourceMirror> getAppliedMixins(ClassSourceMirror cls) {
-  List<ClassSourceMirror> mixins = <ClassSourceMirror>[];
-  ClassSourceMirror superclass = cls.superclass;
-  while (isMixinApplication(superclass) && superclass.isNameSynthetic) {
-    mixins.add(superclass.mixin);
-    superclass = superclass.superclass;
-  }
-  if (mixins.length > 1) {
-    mixins = new List<ClassSourceMirror>.from(mixins.reversed);
-  }
-  if (isMixinApplication(cls)) {
-    mixins.add(cls.mixin);
-  }
-  return mixins;
-}
-
-/**
- * Returns the superinterfaces directly and explicitly implemented by [cls].
- *
- * For instance, for all of the following definitions this method returns
- * [:D1, D2:].
- *
- *     class A extends B implements D1, D2 {}
- *     class A extends B with C1, C2 implements D1, D2 {}
- *     abstract class A = B with C1, C2 implements D1, D2;
- */
-Iterable<ClassMirror> getExplicitInterfaces(ClassMirror cls) {
-  if (isMixinApplication(cls)) {
-    bool first = true;
-    ClassMirror mixin = cls.mixin;
-    bool filter(ClassMirror superinterface) {
-      if (first && superinterface == mixin) {
-        first = false;
-        return false;
-      }
-      return true;
-    }
-    return cls.superinterfaces.where(filter);
-  }
-  return cls.superinterfaces;
-}
-
-final RegExp _singleLineCommentStart = new RegExp(r'^///? ?(.*)');
-final RegExp _multiLineCommentStartEnd =
-    new RegExp(r'^/\*\*? ?([\s\S]*)\*/$', multiLine: true);
-final RegExp _multiLineCommentLineStart = new RegExp(r'^[ \t]*\* ?(.*)');
-
-/**
- * Pulls the raw text out of a comment (i.e. removes the comment
- * characters).
- */
-String stripComment(String comment) {
-  Match match = _singleLineCommentStart.firstMatch(comment);
-  if (match != null) {
-    return match[1];
-  }
-  match = _multiLineCommentStartEnd.firstMatch(comment);
-  if (match != null) {
-    comment = match[1];
-    var sb = new StringBuffer();
-    List<String> lines = comment.split('\n');
-    for (int index = 0; index < lines.length; index++) {
-      String line = lines[index];
-      if (index == 0) {
-        sb.write(line); // Add the first line unprocessed.
-        continue;
-      }
-      sb.write('\n');
-      match = _multiLineCommentLineStart.firstMatch(line);
-      if (match != null) {
-        sb.write(match[1]);
-      } else if (index < lines.length - 1 || !line.trim().isEmpty) {
-        // Do not add the last line if it only contains white space.
-        // This interprets cases like
-        //     /*
-        //      * Foo
-        //      */
-        // as "\nFoo\n" and not as "\nFoo\n     ".
-        sb.write(line);
-      }
-    }
-    return sb.toString();
-  }
-  throw new ArgumentError('Invalid comment $comment');
-}
-
-/**
- * Looks up [name] in the scope [declaration].
- *
- * If [name] is of the form 'a.b.c', 'a' is looked up in the scope of
- * [declaration] and if unresolved 'a.b' is looked in the scope of
- * [declaration]. Each identifier of the remaining suffix, 'c' or 'b.c', is
- * then looked up in the local scope of the previous result.
- *
- * For instance, assumming that [:Iterable:] is imported into the scope of
- * [declaration] via the prefix 'col', 'col.Iterable.E' finds the type
- * variable of [:Iterable:] and 'col.Iterable.contains.element' finds the
- * [:element:] parameter of the [:contains:] method on [:Iterable:].
- */
-DeclarationMirror lookupQualifiedInScope(
-    DeclarationSourceMirror declaration, String name) {
-  // TODO(11653): Support lookup of constructors using the [:new Foo:]
-  // syntax.
-  int offset = 1;
-  List<String> parts = name.split('.');
-  DeclarationMirror result = declaration.lookupInScope(parts[0]);
-  if (result == null && parts.length > 1) {
-    // Try lookup of `prefix.id`.
-    result = declaration.lookupInScope('${parts[0]}.${parts[1]}');
-    offset = 2;
-  }
-  if (result == null) return null;
-  LibraryMirror library = getLibrary(result);
-  while (result != null && offset < parts.length) {
-    result = _lookupLocal(result, symbolOf(parts[offset++], library));
-  }
-  return result;
-}
-
-DeclarationMirror _lookupLocal(Mirror mirror, Symbol id) {
-  DeclarationMirror result;
-  if (mirror is LibraryMirror) {
-    // Try member lookup.
-    result = mirror.declarations[id];
-  } else if (mirror is ClassMirror) {
-    // Try member lookup.
-    result = mirror.declarations[id];
-    if (result != null) return result;
-    // Try type variables.
-    result = mirror.typeVariables.firstWhere(
-        (TypeVariableMirror v) => v.simpleName == id,
-        orElse: () => null);
-  } else if (mirror is MethodMirror) {
-    result = mirror.parameters.firstWhere(
-        (ParameterMirror p) => p.simpleName == id,
-        orElse: () => null);
-  }
-  return result;
-}