test rename overhaul: step 5 - frog and leg tests

frog/tests/leg/src/mock_compiler.dart

-// 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('mock_compiler');
-
-#import("dart:uri");
-
-#import("../../../../lib/compiler/implementation/elements/elements.dart");
-#import("../../../../lib/compiler/implementation/leg.dart");
-#import("../../../../lib/compiler/implementation/tree/tree.dart");
-#import("../../../../lib/compiler/implementation/util/util.dart");
-#import("parser_helper.dart");
-
-class WarningMessage {
-  Node node;
-  Message message;
-  WarningMessage(this.node, this.message);
-
-  toString() => message.toString();
-}
-
-final String DEFAULT_HELPERLIB = @'''
-  lt() {} add(var a, var b) {} sub() {} mul() {} div() {} tdiv() {} mod() {}
-  neg() {} shl() {} shr() {} eq() {} le() {} gt() {} ge() {}
-  or() {} and() {} not() {} eqNull(a) {} eqq() {}
-  iae(x) {throw x;} ioore(x) {throw x;}
-  guard$array(x) { return x; }
-  guard$num(x) { return x; }
-  guard$string(x) { return x; }
-  guard$stringOrArray(x) { return x; }
-  builtin$add$1(receiver, value) {}
-  builtin$get$length(var receiver) {}
-  builtin$filter$1(receiver, predicate) {}
-  builtin$removeLast$0(receiver) {}
-  index(a, index) {}
-  indexSet(a, index, value) {}
-  builtin$iterator$0() {}
-  builtin$next$0() {}
-  builtin$hasNext$0() {}''';
-
-final String DEFAULT_CORELIB = @'''
-  print(var obj) {}
-  class int {}
-  class double {}
-  class bool {}
-  class String {}
-  class Object {}
-  class num {}
-  class Function {}
-  class List {}
-  class Closure {}
-  class Null {}
-  class Dynamic {}''';
-
-class MockCompiler extends Compiler {
-  List<WarningMessage> warnings;
-  List<WarningMessage> errors;
-  final Map<String, String> sources;
-  Node parsedTree;
-
-  MockCompiler([String coreSource = DEFAULT_CORELIB,
-                String helperSource = DEFAULT_HELPERLIB])
-      : warnings = [], errors = [],
-        sources = new Map<String, String>(),
-        super() {
-    Uri uri = new Uri(scheme: "source");
-    var script = new Script(uri, new MockFile(coreSource));
-    coreLibrary = new LibraryElement(script);
-    parseScript(coreSource, coreLibrary);
-    script = new Script(uri, new MockFile(helperSource));
-    jsHelperLibrary = new LibraryElement(script);
-    parseScript(helperSource, jsHelperLibrary);
-    scanner.importLibrary(jsHelperLibrary, coreLibrary, null);
-    mainApp = mockLibrary(this, "");
-    initializeSpecialClasses();
-  }
-
-  void reportWarning(Node node, var message) {
-    warnings.add(new WarningMessage(node, message.message));
-  }
-
-  void reportError(Node node, var message) {
-    if (message is String && message.startsWith("no #library tag found in")) {
-      // TODO(ahe): Fix the MockCompiler to not have this problem.
-      return;
-    }
-    errors.add(new WarningMessage(node, message.message));
-  }
-
-  void reportDiagnostic(SourceSpan span, String message, bool fatal) {
-    print(message);
-  }
-
-  void clearWarnings() {
-    warnings = [];
-  }
-
-  void clearErrors() {
-    errors = [];
-  }
-
-  TreeElementMapping resolveStatement(String text) {
-    parsedTree = parseStatement(text);
-    return resolveNodeStatement(parsedTree, mainApp);
-  }
-
-  TreeElementMapping resolveNodeStatement(Node tree, Element element) {
-    ResolverVisitor visitor = new ResolverVisitor(this, element);
-    if (visitor.context is TopScope) {
-      visitor.context = new BlockScope(visitor.context);
-    }
-    visitor.visit(tree);
-    visitor.context = new TopScope(element.getLibrary());
-    // Resolve the type annotations encountered in the code.
-    while (!resolver.toResolve.isEmpty()) {
-      resolver.toResolve.removeFirst().ensureResolved(this);
-    }
-    return visitor.mapping;
-  }
-
-  resolverVisitor() {
-    Element mockElement =
-        new Element(buildSourceString(''), ElementKind.FUNCTION, mainApp);
-    ResolverVisitor visitor = new ResolverVisitor(this, mockElement);
-    visitor.context = new BlockScope(visitor.context);
-    return visitor;
-  }
-
-  parseScript(String text, [LibraryElement library]) {
-    if (library === null) library = mainApp;
-    parseUnit(text, this, library);
-  }
-
-  void enqueue(WorkItem work) {
-    super.enqueue(work);
-  }
-
-  void scanBuiltinLibraries() {
-    // Do nothing. The mock core library is already handled in the constructor.
-  }
-
-  LibraryElement scanBuiltinLibrary(String name) {
-    // Do nothing. The mock core library is already handled in the constructor.
-  }
-
-  Script readScript(Uri uri, [ScriptTag node]) {
-    String code = sources[uri.toString()];
-    if (code === null) throw new IllegalArgumentException(uri);
-    return new StringScript(code);
-  }
-}
-
-void compareWarningKinds(String text, expectedWarnings, foundWarnings) {
-  var fail = (message) => Expect.fail('$text: $message');
-  Iterator<MessageKind> expected = expectedWarnings.iterator();
-  Iterator<WarningMessage> found = foundWarnings.iterator();
-  while (expected.hasNext() && found.hasNext()) {
-    Expect.equals(expected.next(), found.next().message.kind);
-  }
-  if (expected.hasNext()) {
-    do {
-      print('Expected warning "${expected.next()}" did not occur');
-    } while (expected.hasNext());
-    fail('Too few warnings');
-  }
-  if (found.hasNext()) {
-    do {
-      print('Additional warning "${found.next()}"');
-    } while (found.hasNext());
-    fail('Too many warnings');
-  }
-}
-
-void importLibrary(LibraryElement target, LibraryElement imported,
-                   Compiler compiler) {
-  for (Link<Element> link = imported.topLevelElements; !link.isEmpty();
-       link = link.tail) {
-    compiler.withCurrentElement(link.head, () {
-        target.define(link.head, compiler);
-      });
-  }
-}
-
-LibraryElement mockLibrary(Compiler compiler, String source) {
-  Uri uri = new Uri(scheme: "source");
-  var library = new LibraryElement(new Script(uri, new MockFile(source)));
-  importLibrary(library, compiler.coreLibrary, compiler);
-  return library;
-}
-
-class StringScript extends Script {
-  final String code;
-  StringScript(this.code) : super(null, null);
-  String get text() => code;
-  String get name() => "mock script";
-}