Enable standard lints, run travis on oldest supported SDK (flutter#10)

Author: kevmoo

.travis.yml

@@ -1,12 +1,17 @@
 language: dart
 
 dart:
-  - stable
+  - 2.0.0
   - dev
 
 dart_task:
-  - dart_analyzer: --fatal-warnings .
-  - dartfmt
+  - dart_analyzer: --fatal-warnings --fatal-infos .
+
+matrix:
+  include:
+  # Only validate formatting using the dev release
+  - dart: dev
+    dart_task: dartfmt
 
 # Only building master means that we don't run two builds for each pull request.
 branches:

analysis_options.yaml

@@ -1,27 +1,43 @@
+include: package:pedantic/analysis_options.yaml
+analyzer:
+  strong-mode:
+    implicit-casts: false
 linter:
   rules:
-     # Errors
-     - avoid_empty_else
-     - comment_references
-     - control_flow_in_finally
-     - empty_statements
-     - hash_and_equals
-     - test_types_in_equals
-     - throw_in_finally
-     - unrelated_type_equality_checks
-     - valid_regexps
-
-     # Style
-     - annotate_overrides
-     - avoid_init_to_null
-     - avoid_return_types_on_setters
-     - await_only_futures
-     - camel_case_types
-     - empty_catches
-     - empty_constructor_bodies
-     - library_names
-     - library_prefixes
-     - non_constant_identifier_names
-     - prefer_is_not_empty
-     - slash_for_doc_comments
-     - type_init_formals
+    - avoid_empty_else
+    - avoid_init_to_null
+    - avoid_null_checks_in_equality_operators
+    - avoid_unused_constructor_parameters
+    - await_only_futures
+    - camel_case_types
+    - cancel_subscriptions
+    - constant_identifier_names
+    - control_flow_in_finally
+    - directives_ordering
+    - empty_catches
+    - empty_constructor_bodies
+    - empty_statements
+    - hash_and_equals
+    - implementation_imports
+    - iterable_contains_unrelated_type
+    - library_names
+    - library_prefixes
+    - list_remove_unrelated_type
+    - non_constant_identifier_names
+    - overridden_fields
+    - package_api_docs
+    - package_names
+    - package_prefixed_library_names
+    - prefer_equal_for_default_values
+    - prefer_final_fields
+    - prefer_generic_function_type_aliases
+    - prefer_is_not_empty
+    - slash_for_doc_comments
+    - test_types_in_equals
+    - throw_in_finally
+    - type_init_formals
+    - unnecessary_brace_in_string_interps
+    - unnecessary_const
+    - unnecessary_new
+    - unrelated_type_equality_checks
+    - valid_regexps

lib/ascii.dart

@@ -2,6 +2,8 @@
 // for details. All rights reserved. Use of this source is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// ignore_for_file: constant_identifier_names
+
 /// Declare integer constants for each ASCII character.
 ///
 /// The constants all start with "$" to avoid conflicting with other constants.

pubspec.yaml

@@ -1,11 +1,15 @@
 name: charcode
-version: 1.1.2
+version: 1.1.3-dev
 author: Dart Team <[email protected]>
 description: >-
   Constants for ASCII and common non-ASCII character codes.
   When working with characters in Dart, there is no simple way to
   represent the code point of a character.
   This library declares readable symbolic names for character codes.
 homepage: https://github.com/dart-lang/charcode
+
 environment:
-  sdk: '>=1.0.0 <3.0.0'
+  sdk: '>=2.0.0 <3.0.0'
+
+dev_dependencies:
+  pedantic: ^1.0.0