New analyzer_experimental snapshot.

pkg/analyzer_experimental/test/generated/test_support.dart

 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 library engine.test_support;
 import 'dart:collection';
 import 'package:analyzer_experimental/src/generated/java_core.dart';
 import 'package:analyzer_experimental/src/generated/java_engine.dart';
 import 'package:analyzer_experimental/src/generated/java_junit.dart';
 import 'package:analyzer_experimental/src/generated/source.dart';
 import 'package:analyzer_experimental/src/generated/error.dart';
 import 'package:analyzer_experimental/src/generated/scanner.dart';
+import 'package:analyzer_experimental/src/generated/ast.dart' show ASTNode, NodeLocator;
 import 'package:analyzer_experimental/src/generated/element.dart' show InterfaceType, MethodElement, PropertyAccessorElement;
 import 'package:analyzer_experimental/src/generated/engine.dart' show AnalysisContext, AnalysisContextImpl, RecordingErrorListener;
 import 'package:unittest/unittest.dart' as _ut;
 /**
  * Instances of the class `GatheringErrorListener` implement an error listener that collects
  * all of the errors passed to it for later examination.
  */
 class GatheringErrorListener implements AnalysisErrorListener {
 
   /**
@@ skipping 37 matching lines @@
   GatheringErrorListener.con1(String rawSource2) {
     _jtd_constructor_360_impl(rawSource2);
   }
   _jtd_constructor_360_impl(String rawSource2) {
     this._rawSource = rawSource2;
     this._markedSource = rawSource2;
   }
 
   /**
    * Add all of the errors recorded by the given listener to this listener.
+   *
    * @param listener the listener that has recorded the errors to be added
    */
   void addAll(RecordingErrorListener listener) {
     for (AnalysisError error in listener.errors) {
       onError(error);
     }
   }
 
   /**
    * Assert that the number of errors that have been gathered matches the number of errors that are
    * given and that they have the expected error codes and locations. The order in which the errors
    * were gathered is ignored.
+   *
    * @param errorCodes the errors that should have been gathered
    * @throws AssertionFailedError if a different number of errors have been gathered than were
-   * expected or if they do not have the same codes and locations
+   *           expected or if they do not have the same codes and locations
    */
   void assertErrors(List<AnalysisError> expectedErrors) {
     if (_errors.length != expectedErrors.length) {
       fail(expectedErrors);
     }
     List<AnalysisError> remainingErrors = new List<AnalysisError>();
     for (AnalysisError error in expectedErrors) {
       remainingErrors.add(error);
     }
     for (AnalysisError error in _errors) {
       if (!foundAndRemoved(remainingErrors, error)) {
         fail(expectedErrors);
       }
     }
   }
 
   /**
    * Assert that the number of errors that have been gathered matches the number of errors that are
    * given and that they have the expected error codes. The order in which the errors were gathered
    * is ignored.
+   *
    * @param expectedErrorCodes the error codes of the errors that should have been gathered
    * @throws AssertionFailedError if a different number of errors have been gathered than were
-   * expected
+   *           expected
    */
   void assertErrors2(List<ErrorCode> expectedErrorCodes) {
     JavaStringBuilder builder = new JavaStringBuilder();
     for (ErrorCode errorCode in expectedErrorCodes) {
       JUnitTestCase.assertFalseMsg("Empty error code message", errorCode.message.isEmpty);
     }
     Map<ErrorCode, int> expectedCounts = new Map<ErrorCode, int>();
     for (ErrorCode code in expectedErrorCodes) {
       int count = expectedCounts[code];
       if (count == null) {
@@ skipping 61 matching lines @@
     }
     if (builder.length > 0) {
       JUnitTestCase.fail(builder.toString());
     }
   }
 
   /**
    * Assert that the number of errors that have been gathered matches the number of severities that
    * are given and that there are the same number of errors and warnings as specified by the
    * argument. The order in which the errors were gathered is ignored.
+   *
    * @param expectedSeverities the severities of the errors that should have been gathered
    * @throws AssertionFailedError if a different number of errors have been gathered than were
-   * expected
+   *           expected
    */
   void assertErrors3(List<ErrorSeverity> expectedSeverities) {
     int expectedErrorCount = 0;
     int expectedWarningCount = 0;
     for (ErrorSeverity severity in expectedSeverities) {
       if (identical(severity, ErrorSeverity.ERROR)) {
         expectedErrorCount++;
       } else {
         expectedWarningCount++;
       }
     }
     int actualErrorCount = 0;
     int actualWarningCount = 0;
     for (AnalysisError error in _errors) {
       if (identical(error.errorCode.errorSeverity, ErrorSeverity.ERROR)) {
         actualErrorCount++;
       } else {
         actualWarningCount++;
       }
     }
     if (expectedErrorCount != actualErrorCount || expectedWarningCount != actualWarningCount) {
       JUnitTestCase.fail("Expected ${expectedErrorCount} errors and ${expectedWarningCount} warnings, found ${actualErrorCount} errors and ${actualWarningCount} warnings");
     }
   }
 
   /**
    * Assert that no errors have been gathered.
+   *
    * @throws AssertionFailedError if any errors have been gathered
    */
   void assertNoErrors() {
     assertErrors(_NO_ERRORS);
   }
 
   /**
    * Return the errors that were collected.
+   *
    * @return the errors that were collected
    */
   List<AnalysisError> get errors => _errors;
 
   /**
    * Return the line information associated with the given source, or `null` if no line
    * information has been associated with the source.
+   *
    * @param source the source with which the line information is associated
    * @return the line information associated with the source
    */
   LineInfo getLineInfo(Source source) => _lineInfoMap[source];
 
   /**
    * Return `true` if an error with the given error code has been gathered.
+   *
    * @param errorCode the error code being searched for
    * @return `true` if an error with the given error code has been gathered
    */
   bool hasError(ErrorCode errorCode2) {
     for (AnalysisError error in _errors) {
       if (identical(error.errorCode, errorCode2)) {
         return true;
       }
     }
     return false;
   }
 
   /**
    * Return `true` if at least one error has been gathered.
+   *
    * @return `true` if at least one error has been gathered
    */
   bool hasErrors() => _errors.length > 0;
   void onError(AnalysisError error) {
     if (_rawSource != null) {
       int left = error.offset;
       int right = left + error.length - 1;
       _markedSource = "${_rawSource.substring(0, left)}^${_rawSource.substring(left, right)}^${_rawSource.substring(right)}";
     }
     _errors.add(error);
   }
 
   /**
    * Set the line information associated with the given source to the given information.
+   *
    * @param source the source with which the line information is associated
    * @param lineStarts the line start information to be associated with the source
    */
   void setLineInfo(Source source, List<int> lineStarts) {
     _lineInfoMap[source] = new LineInfo(lineStarts);
   }
 
   /**
    * Set the line information associated with the given source to the given information.
+   *
    * @param source the source with which the line information is associated
    * @param lineInfo the line information to be associated with the source
    */
   void setLineInfo2(Source source, LineInfo lineInfo) {
     _lineInfoMap[source] = lineInfo;
   }
 
   /**
    * Return `true` if the two errors are equivalent.
+   *
    * @param firstError the first error being compared
    * @param secondError the second error being compared
    * @return `true` if the two errors are equivalent
    */
   bool equals3(AnalysisError firstError, AnalysisError secondError) => identical(firstError.errorCode, secondError.errorCode) && firstError.offset == secondError.offset && firstError.length == secondError.length && equals4(firstError.source, secondError.source);
 
   /**
    * Return `true` if the two sources are equivalent.
+   *
    * @param firstSource the first source being compared
    * @param secondSource the second source being compared
    * @return `true` if the two sources are equivalent
    */
   bool equals4(Source firstSource, Source secondSource) {
     if (firstSource == null) {
       return secondSource == null;
     } else if (secondSource == null) {
       return false;
     }
     return firstSource == secondSource;
   }
 
   /**
    * Assert that the number of errors that have been gathered matches the number of errors that are
    * given and that they have the expected error codes. The order in which the errors were gathered
    * is ignored.
+   *
    * @param errorCodes the errors that should have been gathered
    * @throws AssertionFailedError with
    */
   void fail(List<AnalysisError> expectedErrors) {
     PrintStringWriter writer = new PrintStringWriter();
     writer.print("Expected ");
     writer.print(expectedErrors.length);
     writer.print(" errors:");
     for (AnalysisError error in expectedErrors) {
       Source source = error.source;
@@ skipping 21 matching lines @@
       } else {
         LineInfo_Location location = lineInfo.getLocation(error.offset);
         writer.printf("  %s %s (%d, %d/%d): %s", [source == null ? "" : source.shortName, error.errorCode, location.lineNumber, location.columnNumber, error.length, error.message]);
       }
     }
     JUnitTestCase.fail(writer.toString());
   }
 
   /**
    * Search through the given list of errors for an error that is equal to the target error. If one
-   * is found, remove it from the list and return `true`, otherwise return `false`without modifying the list.
+   * is found, remove it from the list and return `true`, otherwise return `false`
+   * without modifying the list.
+   *
    * @param errors the errors through which we are searching
    * @param targetError the error being searched for
    * @return `true` if the error is found and removed from the list
    */
   bool foundAndRemoved(List<AnalysisError> errors, AnalysisError targetError) {
     for (AnalysisError error in errors) {
       if (equals3(error, targetError)) {
         errors.remove(error);
         return true;
       }
     }
     return true;
   }
 }
 /**
  * The class `EngineTestCase` defines utility methods for making assertions.
  */
 class EngineTestCase extends JUnitTestCase {
   static int _PRINT_RANGE = 6;
 
   /**
    * Assert that the tokens in the actual stream of tokens have the same types and lexemes as the
    * tokens in the expected stream of tokens. Note that this does not assert anything about the
    * offsets of the tokens (although the lengths will be equal).
+   *
    * @param expectedStream the head of the stream of tokens that were expected
    * @param actualStream the head of the stream of tokens that were actually found
    * @throws AssertionFailedError if the two streams of tokens are not the same
    */
   static void assertAllMatch(Token expectedStream, Token actualStream) {
     Token left = expectedStream;
     Token right = actualStream;
     while (left.type != TokenType.EOF && right.type != TokenType.EOF) {
       assertMatches(left, right);
       left = left.next;
       right = right.next;
     }
   }
 
   /**
    * Assert that the given array is non-`null` and contains the expected elements. The
    * elements can appear in any order.
+   *
    * @param array the array being tested
    * @param expectedElements the expected elements
    * @throws AssertionFailedError if the array is `null` or does not contain the expected
-   * elements
+   *           elements
    */
   static void assertContains(List<Object> array, List<Object> expectedElements) {
     int expectedSize = expectedElements.length;
     if (array == null) {
       JUnitTestCase.fail("Expected array of length ${expectedSize}; found null");
     }
     if (array.length != expectedSize) {
       JUnitTestCase.fail("Expected array of length ${expectedSize}; contained ${array.length} elements");
     }
     List<bool> found = new List<bool>.filled(expectedSize, false);
     for (int i = 0; i < expectedSize; i++) {
       assertContains2(array, found, expectedElements[i]);
     }
   }
 
   /**
    * Assert that the array of actual values contain exactly the same values as those in the array of
    * expected value, with the exception that the order of the elements is not required to be the
    * same.
+   *
    * @param expectedValues the values that are expected to be found
    * @param actualValues the actual values that are being compared against the expected values
    */
   static void assertEqualsIgnoreOrder(List<Object> expectedValues, List<Object> actualValues) {
     JUnitTestCase.assertNotNull(actualValues);
     int expectedLength = expectedValues.length;
     JUnitTestCase.assertEquals(expectedLength, actualValues.length);
     List<bool> found = new List<bool>.filled(expectedLength, false);
     for (int i = 0; i < expectedLength; i++) {
       found[i] = false;
     }
     for (Object actualValue in actualValues) {
       bool wasExpected = false;
       for (int i = 0; i < expectedLength; i++) {
         if (!found[i] && expectedValues[i] == actualValue) {
           found[i] = true;
           wasExpected = true;
           break;
         }
       }
       if (!wasExpected) {
         JUnitTestCase.fail("The actual value ${actualValue} was not expected");
       }
     }
   }
 
   /**
    * Assert that a given String is equal to an expected value.
+   *
    * @param expected the expected String value
    * @param actual the actual String value
    */
   static void assertEqualString(String expected, String actual) {
     if (actual == null || expected == null) {
       if (identical(actual, expected)) {
         return;
       }
       if (actual == null) {
         JUnitTestCase.assertTrueMsg("Content not as expected: is 'null' expected: ${expected}", false);
       } else {
         JUnitTestCase.assertTrueMsg("Content not as expected: expected 'null' is: ${actual}", false);
       }
     }
     int diffPos = getDiffPos(expected, actual);
     if (diffPos != -1) {
       int diffAhead = Math.max(0, diffPos - _PRINT_RANGE);
       int diffAfter = Math.min(actual.length, diffPos + _PRINT_RANGE);
       String diffStr = "${actual.substring(diffAhead, diffPos)}^${actual.substring(diffPos, diffAfter)}";
       String message = "Content not as expected: is\n${actual}\nDiffers at pos ${diffPos}: ${diffStr}\nexpected:\n${expected}";
       JUnitTestCase.assertEqualsMsg(message, expected, actual);
     }
   }
 
   /**
    * Assert that the given list is non-`null` and has exactly expected elements.
+   *
    * @param list the list being tested
    * @param expectedElements the expected elements
    * @throws AssertionFailedError if the list is `null` or does not have the expected elements
    */
   static void assertExactElements(List<Object> list, List<Object> expectedElements) {
     int expectedSize = expectedElements.length;
     if (list == null) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; found null");
     }
     if (list.length != expectedSize) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; contained ${list.length} elements");
     }
     for (int i = 0; i < expectedSize; i++) {
       Object element = list[i];
       Object expectedElement = expectedElements[i];
       if (!element == expectedElement) {
         JUnitTestCase.fail("Expected ${expectedElement} at [${i}]; found ${element}");
       }
     }
   }
 
   /**
    * Assert that the given array is non-`null` and has exactly expected elements.
+   *
    * @param array the array being tested
    * @param expectedElements the expected elements
    * @throws AssertionFailedError if the array is `null` or does not have the expected
-   * elements
+   *           elements
    */
   static void assertExactElements2(List<Object> array, List<Object> expectedElements) {
     int expectedSize = expectedElements.length;
     if (array == null) {
       JUnitTestCase.fail("Expected array of size ${expectedSize}; found null");
     }
     if (array.length != expectedSize) {
       JUnitTestCase.fail("Expected array of size ${expectedSize}; contained ${array.length} elements");
     }
     for (int i = 0; i < expectedSize; i++) {
       Object element = array[i];
       Object expectedElement = expectedElements[i];
       if (!element == expectedElement) {
         JUnitTestCase.fail("Expected ${expectedElement} at [${i}]; found ${element}");
       }
     }
   }
 
   /**
    * Assert that the given list is non-`null` and has exactly expected elements.
+   *
    * @param set the list being tested
    * @param expectedElements the expected elements
    * @throws AssertionFailedError if the list is `null` or does not have the expected elements
    */
   static void assertExactElements3(Set<Object> set, List<Object> expectedElements) {
     int expectedSize = expectedElements.length;
     if (set == null) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; found null");
     }
     if (set.length != expectedSize) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; contained ${set.length} elements");
     }
     for (int i = 0; i < expectedSize; i++) {
       Object expectedElement = expectedElements[i];
       if (!set.contains(expectedElement)) {
         JUnitTestCase.fail("Expected ${expectedElement} in set${set}");
       }
     }
   }
 
   /**
    * Assert that the given object is an instance of the expected class.
+   *
    * @param expectedClass the class that the object is expected to be an instance of
    * @param object the object being tested
    * @return the object that was being tested
    * @throws Exception if the object is not an instance of the expected class
    */
   static Object assertInstanceOf(Type expectedClass, Object object) {
     if (!isInstanceOf(object, expectedClass)) {
       JUnitTestCase.fail("Expected instance of ${expectedClass.toString()}, found ${(object == null ? "null" : object.runtimeType.toString())}");
     }
     return object as Object;
   }
 
   /**
    * Assert that the given array is non-`null` and has the expected number of elements.
+   *
    * @param expectedLength the expected number of elements
    * @param array the array being tested
    * @throws AssertionFailedError if the array is `null` or does not have the expected number
-   * of elements
+   *           of elements
    */
   static void assertLength(int expectedLength, List<Object> array) {
     if (array == null) {
       JUnitTestCase.fail("Expected array of length ${expectedLength}; found null");
     } else if (array.length != expectedLength) {
       JUnitTestCase.fail("Expected array of length ${expectedLength}; contained ${array.length} elements");
     }
   }
 
   /**
    * Assert that the actual token has the same type and lexeme as the expected token. Note that this
    * does not assert anything about the offsets of the tokens (although the lengths will be equal).
+   *
    * @param expectedToken the token that was expected
    * @param actualToken the token that was found
    * @throws AssertionFailedError if the two tokens are not the same
    */
   static void assertMatches(Token expectedToken, Token actualToken) {
     JUnitTestCase.assertEquals(expectedToken.type, actualToken.type);
     if (expectedToken is KeywordToken) {
       assertInstanceOf(KeywordToken, actualToken);
       JUnitTestCase.assertEquals(((expectedToken as KeywordToken)).keyword, ((actualToken as KeywordToken)).keyword);
     } else if (expectedToken is StringToken) {
       assertInstanceOf(StringToken, actualToken);
       JUnitTestCase.assertEquals(((expectedToken as StringToken)).lexeme, ((actualToken as StringToken)).lexeme);
     }
   }
 
   /**
    * Assert that the given list is non-`null` and has the expected number of elements.
+   *
    * @param expectedSize the expected number of elements
    * @param list the list being tested
    * @throws AssertionFailedError if the list is `null` or does not have the expected number
-   * of elements
+   *           of elements
    */
   static void assertSize(int expectedSize, List<Object> list) {
     if (list == null) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; found null");
     } else if (list.length != expectedSize) {
       JUnitTestCase.fail("Expected list of size ${expectedSize}; contained ${list.length} elements");
     }
   }
 
   /**
    * Assert that the given map is non-`null` and has the expected number of elements.
+   *
    * @param expectedSize the expected number of elements
    * @param map the map being tested
    * @throws AssertionFailedError if the map is `null` or does not have the expected number of
-   * elements
+   *           elements
    */
   static void assertSize2(int expectedSize, Map<Object, Object> map) {
     if (map == null) {
       JUnitTestCase.fail("Expected map of size ${expectedSize}; found null");
     } else if (map.length != expectedSize) {
       JUnitTestCase.fail("Expected map of size ${expectedSize}; contained ${map.length} elements");
     }
   }
 
   /**
    * Assert that the given set is non-`null` and has the expected number of elements.
+   *
    * @param expectedSize the expected number of elements
    * @param set the set being tested
    * @throws AssertionFailedError if the set is `null` or does not have the expected number of
-   * elements
+   *           elements
    */
   static void assertSize3(int expectedSize, Set<Object> set) {
     if (set == null) {
       JUnitTestCase.fail("Expected set of size ${expectedSize}; found null");
     } else if (set.length != expectedSize) {
       JUnitTestCase.fail("Expected set of size ${expectedSize}; contained ${set.length} elements");
     }
   }
 
   /**
    * Convert the given array of lines into a single source string.
+   *
    * @param lines the lines to be merged into a single source string
    * @return the source string composed of the given lines
    */
   static String createSource(List<String> lines) {
     PrintStringWriter writer = new PrintStringWriter();
     for (String line in lines) {
       writer.println(line);
     }
     return writer.toString();
   }
+
+  /**
+   * @return the [ASTNode] with requested type at offset of the "prefix".
+   */
+  static ASTNode findNode(ASTNode root, String code, String prefix, Type clazz) {
+    int offset = code.indexOf(prefix);
+    if (offset == -1) {
+      throw new IllegalArgumentException("Not found '${prefix}'.");
+    }
+    ASTNode node = new NodeLocator.con1(offset).searchWithin(root);
+    return node.getAncestor(clazz);
+  }
   static void assertContains2(List<Object> array, List<bool> found, Object element) {
     if (element == null) {
       for (int i = 0; i < array.length; i++) {
         if (!found[i]) {
           if (array[i] == null) {
             found[i] = true;
             return;
           }
         }
       }
       JUnitTestCase.fail("Does not contain null");
     } else {
       for (int i = 0; i < array.length; i++) {
         if (!found[i]) {
           if (element == array[i]) {
             found[i] = true;
             return;
           }
         }
       }
       JUnitTestCase.fail("Does not contain ${element}");
     }
   }
 
   /**
    * Calculate the offset where the given strings differ.
+   *
    * @param str1 the first String to compare
    * @param str2 the second String to compare
    * @return the offset at which the strings differ (or <code>-1</code> if they do not)
    */
   static int getDiffPos(String str1, String str2) {
     int len1 = Math.min(str1.length, str2.length);
     int diffPos = -1;
     for (int i = 0; i < len1; i++) {
       if (str1.codeUnitAt(i) != str2.codeUnitAt(i)) {
         diffPos = i;
         break;
       }
     }
     if (diffPos == -1 && str1.length != str2.length) {
       diffPos = len1;
     }
     return diffPos;
   }
   AnalysisContextImpl createAnalysisContext() {
     AnalysisContextImpl context = new AnalysisContextImpl();
     context.sourceFactory = new SourceFactory.con2([]);
     return context;
   }
 
   /**
    * Return the getter in the given type with the given name. Inherited getters are ignored.
+   *
    * @param type the type in which the getter is declared
    * @param getterName the name of the getter to be returned
    * @return the property accessor element representing the getter with the given name
    */
   PropertyAccessorElement getGetter(InterfaceType type, String getterName) {
     for (PropertyAccessorElement accessor in type.element.accessors) {
       if (accessor.isGetter && accessor.name == getterName) {
         return accessor;
       }
     }
     JUnitTestCase.fail("Could not find getter named ${getterName} in ${type.displayName}");
     return null;
   }
 
   /**
    * Return the method in the given type with the given name. Inherited methods are ignored.
+   *
    * @param type the type in which the method is declared
    * @param methodName the name of the method to be returned
    * @return the method element representing the method with the given name
    */
   MethodElement getMethod(InterfaceType type, String methodName) {
     for (MethodElement method in type.element.methods) {
       if (method.name == methodName) {
         return method;
       }
     }
@@ skipping 66 matching lines @@
         return trampoline(target, arguments[0], arguments[1]);
       case 3:
         return trampoline(target, arguments[0], arguments[1], arguments[2]);
       case 4:
         return trampoline(target, arguments[0], arguments[1], arguments[2], arguments[3]);
       default:
         throw new IllegalArgumentException("Not implemented for > 4 arguments");
     }
   }
 }