| // Copyright (c) 2022, 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 'package:ffigen/src/code_generator.dart'; |
| |
| import 'writer.dart'; |
| |
| /// Represents a function type. |
| class FunctionType extends Type { |
| final Type returnType; |
| final List<Parameter> parameters; |
| |
| FunctionType({ |
| required this.returnType, |
| required this.parameters, |
| }); |
| |
| String _getTypeString( |
| bool writeArgumentNames, String Function(Type) typeToString) { |
| final sb = StringBuffer(); |
| |
| // Write return Type. |
| sb.write(typeToString(returnType)); |
| |
| // Write Function. |
| sb.write(' Function('); |
| sb.write(parameters.map<String>((p) { |
| return '${typeToString(p.type)} ${writeArgumentNames ? p.name : ""}'; |
| }).join(', ')); |
| sb.write(')'); |
| |
| return sb.toString(); |
| } |
| |
| @override |
| String getCType(Writer w, {bool writeArgumentNames = true}) => |
| _getTypeString(writeArgumentNames, (Type t) => t.getCType(w)); |
| |
| @override |
| String getDartType(Writer w, {bool writeArgumentNames = true}) => |
| _getTypeString(writeArgumentNames, (Type t) => t.getDartType(w)); |
| |
| @override |
| String toString() => _getTypeString(false, (Type t) => t.toString()); |
| |
| @override |
| String cacheKey() => _getTypeString(false, (Type t) => t.cacheKey()); |
| |
| @override |
| void addDependencies(Set<Binding> dependencies) { |
| returnType.addDependencies(dependencies); |
| for (final p in parameters) { |
| p.type.addDependencies(dependencies); |
| } |
| } |
| } |
| |
| /// Represents a NativeFunction<Function>. |
| class NativeFunc extends Type { |
| final Type type; |
| |
| NativeFunc(this.type); |
| |
| @override |
| void addDependencies(Set<Binding> dependencies) { |
| type.addDependencies(dependencies); |
| } |
| |
| @override |
| String getCType(Writer w) => |
| '${w.ffiLibraryPrefix}.NativeFunction<${type.getCType(w)}>'; |
| |
| @override |
| String getDartType(Writer w) => |
| '${w.ffiLibraryPrefix}.NativeFunction<${type.getCType(w)}>'; |
| |
| @override |
| String toString() => 'NativeFunction<${type.toString()}>'; |
| |
| @override |
| String cacheKey() => 'NatFn(${type.cacheKey()})'; |
| } |