Use package:ffigen (#17)

Author: dcharkes

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.5.1
+ * Uses `package:ffigen` to generate the Dart bindings.
+ * Bumped SDK constraint to Dart 2.12.
+
 # 0.5.0
  * Rolled forward all dependencies to Dart 2.12 previews.
  * Migrated breaking changes for [package:ffi](https://pub.dev/packages/ffi) version `1.0.0`.

example/pubspec.lock

@@ -436,7 +436,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "0.5.0"
+    version: "0.5.1"
   webdriver:
     dependency: transitive
     description:
@@ -459,5 +459,5 @@ packages:
     source: hosted
     version: "2.2.1"
 sdks:
-  dart: ">=2.12.0-259.9.beta <3.0.0"
-  flutter: ">=1.24.0-10.2.pre"
+  dart: ">=2.12.0 <3.0.0"
+  flutter: ">=2.0.0"

example/pubspec.yaml

@@ -20,8 +20,8 @@ description: Demonstrates how to use the webcrypto plugin.
 publish_to: "none" # Remove this line if you wish to publish to pub.dev
 
 environment:
-  sdk: ">=2.12.0-259.9.beta <3.0.0"
-  flutter: ">=1.17.0"
+  sdk: ">=2.12.0 <3.0.0"
+  flutter: '>=2.0.0'
 
 dependencies:
   flutter:

lib/src/boringssl/aead.dart

@@ -0,0 +1,54 @@
+name: WebCryptoDartDL
+description: 'Bindings to src/webcrypto_dart_dl.h.'
+output: 'lib/src/boringssl/bindings/generated_bindings.dart'
+headers:
+  entry-points:
+    - src/webcrypto_dart_dl.h
+    - src/webcrypto.c
+compiler-opts: '-Ithird_party/dart-sdk/src/runtime/ -Ithird_party/boringssl/src/include'
+comments:
+  style: any
+  length: full
+sort: true
+typedef-map:
+  # TODO(dacoharkes): https://github.com/dart-lang/sdk/issues/42563 https://github.com/dart-lang/ffigen/issues/7
+  size_t: IntPtr
+macros:
+  include:
+    - nothing
+enums:
+  include:
+    - nothing
+unnamed-enums:
+  include:
+    - nothing
+globals:
+  include:
+    - nothing
+structs:
+  include:
+    - nothing
+  dependency-only: opaque
+functions:
+  include:
+    # Keep consistent with src/symbols.yaml.
+    - webcrypto_dart_dl_attach_finalizer
+    - webcrypto_dart_dl_initialize
+    - webcrypto_lookup_symbol
+preamble: |
+  // Copyright 2021 Google LLC
+  //
+  // Licensed under the Apache License, Version 2.0 (the "License");
+  // you may not use this file except in compliance with the License.
+  // You may obtain a copy of the License at
+  //
+  //      http://www.apache.org/licenses/LICENSE-2.0
+  //
+  // Unless required by applicable law or agreed to in writing, software
+  // distributed under the License is distributed on an "AS IS" BASIS,
+  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  // See the License for the specific language governing permissions and
+  // limitations under the License.
+  //
+  // ignore_for_file: unused_element
+