Dart 2 changes to the language tour

examples/misc/analyzer-2-results.txt

@@ -1,5 +1,5 @@
 Analyzing lib, test...
-  error • The integer literal 34653465834652437659238476592374958739845729 can't be represented in 64 bits at lib/language_tour/built_in_types.dart:10:18 • integer_literal_out_of_range
 # https://github.com/dart-lang/sdk/issues/32236 - flow analysis can't yet figure out that the variable is of type Person.
+  error • 'Object' doesn't extend 'SomeBaseClass' at lib/language_tour/generics/base_class.dart:43:21 • type_argument_not_matching_bounds
   error • A value of type 'dynamic' can't be assigned to a variable of type 'Person' at lib/library_tour/core/hash_code.dart:25:21 • invalid_assignment
 2 errors found.

examples/misc/lib/language_tour/built_in_types.dart

@@ -6,8 +6,6 @@ void miscDeclAnalyzedButNotTested() {
     // #docregion integer-literals
     int x = 1;
     int hex = 0xDEADBEEF;
-    // ignore_for_file: 2, integer_literal_out_of_range
-    int bigInt = 34653465834652437659238476592374958739845729;
     // #enddocregion integer-literals
   }
 
@@ -59,23 +57,6 @@ void miscDeclAnalyzedButNotTested() {
     // #enddocregion string-literals
   }
 
-  {
-    // #docregion strictly-boolean
-    var name = 'Bob';
-    // #enddocregion strictly-boolean
-    /*
-    // #docregion strictly-boolean
-    if (name) {
-    // #enddocregion strictly-boolean
-    */
-    if (name != null && name.isNotEmpty) {
-      // #docregion strictly-boolean
-      // Prints in JavaScript, not in Dart.
-      print('You have a name!');
-    }
-    // #enddocregion strictly-boolean
-  }
-
   {
     var c = true;
     /*

examples/misc/lib/language_tour/classes/misc.dart

@@ -10,26 +10,6 @@ abstract class AbstractContainer {
 }
 // #enddocregion abstract
 
-// #docregion extends
-class SpecializedContainer extends AbstractContainer {
-  // Define constructors, fields, methods...
-
-  void updateChildren() {
-    // Provide an implementation, so the method is not abstract here...
-  }
-
-  // Abstract method causes a warning but
-  // doesn't prevent instantiation.
-  // #enddocregion extends
-  /*
-  // #docregion extends
-  void doSomething();
-  // #enddocregion extends
-  */
-// #docregion extends
-}
-// #enddocregion extends
-
 class Comparable {}
 
 class Location {}

examples/misc/lib/language_tour/classes/point_alt.dart

@@ -25,5 +25,11 @@ class Point {
   }
   // #enddocregion initializer-list
 
+  // #docregion initializer-list-with-assert
+  Point.withAssert(this.x, this.y) : assert(x >= 0) {
+    print('In Point.withAssert(): ($x, $y)');
+  }
+  // #enddocregion initializer-list-with-assert
+
 // #docregion constructor-long-way
 }

examples/misc/lib/language_tour/generics/base_class.dart

@@ -15,23 +15,32 @@ class Extender extends SomeBaseClass {
   // Implementation goes here.
   // #docregion
 }
+// #enddocregion
 
 void main() {
   // It's OK to use SomeBaseClass or any of its subclasses inside <>.
+  // #docregion SomeBaseClass-ok
   var someBaseClassFoo = new Foo<SomeBaseClass>();
   var extenderFoo = new Foo<Extender>();
+  // #enddocregion SomeBaseClass-ok
 
   // It's also OK to use no <> at all.
+  // #docregion no-generic-arg-ok
   var foo = new Foo();
-
-  // Specifying any non-SomeBaseClass type results in a warning and, in
-  // checked mode, a runtime error.
-  // var objectFoo = new Foo<Object>();
-  // #enddocregion
+  // #enddocregion no-generic-arg-ok
 
   // Normal mode: Foo<SomeBaseClass>, Foo<Extender>, Foo<dynamic>, Foo<Object>
   // print('$someBaseClassFoo, $extenderFoo, $foo, $objectFoo');
 
   // Foo<SomeBaseClass>, Foo<Extender>, Foo<dynamic>
   print('$someBaseClassFoo, $extenderFoo, $foo');
 }
+
+dynamic notTestedOnlyAnalyzed() {
+  // ignore_for_file: 2, type_argument_not_matching_bounds
+  // Specifying any non-SomeBaseClass type results in an error.
+  // #docregion Foo-Object-error
+  var foo = new Foo<Object>(); //!analysis-issue
+  // #enddocregion Foo-Object-error
+  return foo;
+}

examples/misc/lib/language_tour/variables.dart

@@ -7,6 +7,12 @@ void miscDeclAnalyzedButNotTested() {
     // #enddocregion var-decl
   }
 
+  {
+    // #docregion type-decl
+    dynamic name = 'Bob';
+    // #enddocregion type-decl
+  }
+
   {
     // #docregion static-types
     String name = 'Bob';

examples/misc/test/language_tour/basic_test.dart

@@ -6,14 +6,14 @@ void main() {
   test('basic', () {
     // #docregion
     // Define a function.
-    printNumber(num aNumber) {
+    printInteger(int aNumber) {
       print('The number is $aNumber.'); // Print to console.
     }
 
     // This is where the app starts executing.
     main() {
       var number = 42; // Declare and initialize a variable.
-      printNumber(number); // Call a function.
+      printInteger(number); // Call a function.
     }
 
     // #enddocregion

examples/misc/test/language_tour/generics_test.dart

@@ -64,7 +64,7 @@ void assignIntToStringList() {
   // #docregion why-generics
   var names = new List<String>();
   names.addAll(['Seth', 'Kathy', 'Lars']);
-  names.add(42); // Fails in checked mode (succeeds in production mode).
+  names.add(42); // Error
   // #enddocregion why-generics
 }
 

examples/misc/test/language_tour/variables_test.dart

@@ -5,7 +5,6 @@ void main() {
     // #docregion var-null-init
     int lineCount;
     assert(lineCount == null);
-    // Variables (even if they will be numbers) are initially null.
     // #enddocregion var-null-init
   });
 }