| // Copyright (c) 2020, 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. |
| |
| import 'binding_string.dart'; |
| |
| /// To store generated String bindings. |
| class Writer { |
| String header; |
| String dylibIdentifier; |
| String initFunctionIdentifier; |
| |
| /// dart:ffi library import prefix. |
| String ffiLibraryPrefix; |
| |
| final List<BindingString> _bindings = []; |
| |
| Writer({ |
| this.dylibIdentifier = '_dylib', |
| this.initFunctionIdentifier = 'init', |
| this.ffiLibraryPrefix = 'ffi', |
| }); |
| |
| String generate() { |
| final s = StringBuffer(); |
| |
| // Write header (if any) |
| if (header != null) { |
| s.write(header); |
| s.write('\n'); |
| } else { |
| // Write default header, in case none was provided. |
| s.write('''/// AUTO GENERATED FILE, DO NOT EDIT. |
| /// |
| /// Generated by `package:ffigen`. |
| '''); |
| } |
| |
| // Write neccesary imports. |
| s.write("import 'dart:ffi' as $ffiLibraryPrefix;\n"); |
| s.write('\n'); |
| |
| // Write dylib. |
| s.write('/// Holds the Dynamic library.\n'); |
| s.write('$ffiLibraryPrefix.DynamicLibrary ${dylibIdentifier};\n'); |
| s.write('\n'); |
| s.write('/// Initialises the Dynamic library.\n'); |
| s.write( |
| 'void $initFunctionIdentifier($ffiLibraryPrefix.DynamicLibrary dylib){\n'); |
| s.write(' ${dylibIdentifier} = dylib;\n'); |
| s.write('}\n'); |
| |
| // Write bindings. |
| for (final bs in _bindings) { |
| s.write(bs.string); |
| } |
| |
| return s.toString(); |
| } |
| |
| void addBindingString(BindingString b) { |
| _bindings.add(b); |
| } |
| } |