blob: f67886e8ed0d993151a1f2a2cabb40fa73c2e117 [file] [log] [blame]
// 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 'dart:_foreign_helper' show JS;
import 'dart:_js_helper'
show convertDartClosureToJS, assertInterop, assertInteropArgs, patch;
import 'dart:collection' show HashMap;
import 'dart:async' show Completer;
import 'dart:js_util';
@patch
dynamic jsify(Object object) {
if ((object is! Map) && (object is! Iterable)) {
throw ArgumentError("object must be a Map or Iterable");
}
return _convertDataTree(object);
}
Object _convertDataTree(Object data) {
var _convertedObjects = HashMap.identity();
Object? _convert(Object? o) {
if (_convertedObjects.containsKey(o)) {
return _convertedObjects[o];
}
if (o is Map) {
final convertedMap = JS('=Object', '{}');
_convertedObjects[o] = convertedMap;
for (var key in o.keys) {
JS('=Object', '#[#]=#', convertedMap, key, _convert(o[key]));
}
return convertedMap;
} else if (o is Iterable) {
var convertedList = [];
_convertedObjects[o] = convertedList;
convertedList.addAll(o.map(_convert));
return convertedList;
} else {
return o;
}
}
return _convert(data)!;
}
@patch
@pragma('dart2js:tryInline')
Object get globalThis => JS('', 'globalThis');
@patch
T newObject<T>() => JS('=Object', '{}');
@patch
bool hasProperty(Object o, Object name) => JS('bool', '# in #', name, o);
@patch
T getProperty<T>(Object o, Object name) =>
JS<dynamic>('Object|Null', '#[#]', o, name);
/// Similar to [getProperty] but introduces an unsound implicit cast to `T`.
T _getPropertyTrustType<T>(Object o, Object name) =>
JS<T>('Object|Null', '#[#]', o, name);
@patch
T setProperty<T>(Object o, Object name, T? value) {
assertInterop(value);
return JS('', '#[#]=#', o, name, value);
}
/// Unchecked version of setProperty, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _setPropertyUnchecked<T>(Object o, Object name, T? value) {
return JS('', '#[#]=#', o, name, value);
}
@patch
T callMethod<T>(Object o, String method, List<Object?> args) {
assertInteropArgs(args);
return JS<dynamic>('Object|Null', '#[#].apply(#, #)', o, method, o, args);
}
/// Similar to [callMethod] but introduces an unsound implicit cast to `T`.
T _callMethodTrustType<T>(Object o, String method, List<Object?> args) {
assertInteropArgs(args);
return JS<T>('Object|Null', '#[#].apply(#, #)', o, method, o, args);
}
/// Unchecked version for 0 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callMethodUnchecked0<T>(Object o, String method) {
return JS<dynamic>('Object|Null', '#[#]()', o, method);
}
/// Similar to [_callMethodUnchecked] but introduces an unsound implicit cast
/// to `T`.
@pragma('dart2js:tryInline')
T _callMethodUncheckedTrustType0<T>(Object o, String method) {
return JS<T>('Object|Null', '#[#]()', o, method);
}
/// Unchecked version for 1 argument, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callMethodUnchecked1<T>(Object o, String method, Object? arg1) {
return JS<dynamic>('Object|Null', '#[#](#)', o, method, arg1);
}
/// Similar to [_callMethodUnchecked1] but introduces an unsound implicit cast
/// to `T`.
@pragma('dart2js:tryInline')
T _callMethodUncheckedTrustType1<T>(Object o, String method, Object? arg1) {
return JS<T>('Object|Null', '#[#](#)', o, method, arg1);
}
/// Unchecked version for 2 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callMethodUnchecked2<T>(
Object o, String method, Object? arg1, Object? arg2) {
return JS<dynamic>('Object|Null', '#[#](#, #)', o, method, arg1, arg2);
}
/// Similar to [_callMethodUnchecked2] but introduces an unsound implicit cast
/// to `T`.
@pragma('dart2js:tryInline')
T _callMethodUncheckedTrustType2<T>(
Object o, String method, Object? arg1, Object? arg2) {
return JS<T>('Object|Null', '#[#](#, #)', o, method, arg1, arg2);
}
/// Unchecked version for 3 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callMethodUnchecked3<T>(
Object o, String method, Object? arg1, Object? arg2, Object? arg3) {
return JS<dynamic>(
'Object|Null', '#[#](#, #, #)', o, method, arg1, arg2, arg3);
}
/// Similar to [_callMethodUnchecked3] but introduces an unsound implicit cast
/// to `T`.
@pragma('dart2js:tryInline')
T _callMethodUncheckedTrustType3<T>(
Object o, String method, Object? arg1, Object? arg2, Object? arg3) {
return JS<T>('Object|Null', '#[#](#, #, #)', o, method, arg1, arg2, arg3);
}
/// Unchecked version for 4 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callMethodUnchecked4<T>(Object o, String method, Object? arg1, Object? arg2,
Object? arg3, Object? arg4) {
return JS<dynamic>(
'Object|Null', '#[#](#, #, #, #)', o, method, arg1, arg2, arg3, arg4);
}
/// Similar to [_callMethodUnchecked4] but introduces an unsound implicit cast
/// to `T`.
@pragma('dart2js:tryInline')
T _callMethodUncheckedTrustType4<T>(Object o, String method, Object? arg1,
Object? arg2, Object? arg3, Object? arg4) {
return JS<T>(
'Object|Null', '#[#](#, #, #, #)', o, method, arg1, arg2, arg3, arg4);
}
@patch
bool instanceof(Object? o, Object type) =>
JS('bool', '# instanceof #', o, type);
@patch
T callConstructor<T>(Object constr, List<Object?>? arguments) {
if (arguments == null) {
return JS<dynamic>('Object', 'new #()', constr);
} else {
assertInteropArgs(arguments);
}
if (JS('bool', '# instanceof Array', arguments)) {
int argumentCount = JS('int', '#.length', arguments);
switch (argumentCount) {
case 0:
return JS<dynamic>('Object', 'new #()', constr);
case 1:
var arg0 = JS('', '#[0]', arguments);
return JS<dynamic>('Object', 'new #(#)', constr, arg0);
case 2:
var arg0 = JS('', '#[0]', arguments);
var arg1 = JS('', '#[1]', arguments);
return JS<dynamic>('Object', 'new #(#, #)', constr, arg0, arg1);
case 3:
var arg0 = JS('', '#[0]', arguments);
var arg1 = JS('', '#[1]', arguments);
var arg2 = JS('', '#[2]', arguments);
return JS<dynamic>(
'Object', 'new #(#, #, #)', constr, arg0, arg1, arg2);
case 4:
var arg0 = JS('', '#[0]', arguments);
var arg1 = JS('', '#[1]', arguments);
var arg2 = JS('', '#[2]', arguments);
var arg3 = JS('', '#[3]', arguments);
return JS<dynamic>(
'Object', 'new #(#, #, #, #)', constr, arg0, arg1, arg2, arg3);
}
}
// The following code solves the problem of invoking a JavaScript
// constructor with an unknown number arguments.
// First bind the constructor to the argument list using bind.apply().
// The first argument to bind() is the binding of 't', so add 'null' to
// the arguments list passed to apply().
// After that, use the JavaScript 'new' operator which overrides any binding
// of 'this' with the new instance.
var args = <dynamic>[null]..addAll(arguments);
var factoryFunction = JS('', '#.bind.apply(#, #)', constr, constr, args);
// Without this line, calling factoryFunction as a constructor throws
JS('String', 'String(#)', factoryFunction);
// This could return an UnknownJavaScriptObject, or a native
// object for which there is an interceptor
return JS<dynamic>('Object', 'new #()', factoryFunction);
// TODO(sra): Investigate:
//
// var jsObj = JS('', 'Object.create(#.prototype)', constr);
// JS('', '#.apply(#, #)', constr, jsObj,
// []..addAll(arguments.map(_convertToJS)));
// return _wrapToDart(jsObj);
}
/// Unchecked version for 0 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callConstructorUnchecked0<T>(Object constr) {
return JS<dynamic>('Object', 'new #()', constr);
}
/// Unchecked version for 1 argument, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callConstructorUnchecked1<T>(Object constr, Object? arg1) {
return JS<dynamic>('Object', 'new #(#)', constr, arg1);
}
/// Unchecked version for 2 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callConstructorUnchecked2<T>(Object constr, Object? arg1, Object? arg2) {
return JS<dynamic>('Object', 'new #(#, #)', constr, arg1, arg2);
}
/// Unchecked version for 3 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callConstructorUnchecked3<T>(
Object constr, Object? arg1, Object? arg2, Object? arg3) {
return JS<dynamic>('Object', 'new #(#, #, #)', constr, arg1, arg2, arg3);
}
/// Unchecked version for 4 arguments, only used in a CFE transformation.
@pragma('dart2js:tryInline')
T _callConstructorUnchecked4<T>(
Object constr, Object? arg1, Object? arg2, Object? arg3, Object? arg4) {
return JS<dynamic>(
'Object', 'new #(#, #, #, #)', constr, arg1, arg2, arg3, arg4);
}
@patch
@pragma('dart2js:tryInline')
T add<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# + #', first, second);
}
@patch
@pragma('dart2js:tryInline')
T subtract<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# - #', first, second);
}
@patch
@pragma('dart2js:tryInline')
T multiply<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# * #', first, second);
}
@patch
@pragma('dart2js:tryInline')
T divide<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# / #', first, second);
}
@patch
@pragma('dart2js:tryInline')
T exponentiate<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# ** #', first, second);
}
@patch
@pragma('dart2js:tryInline')
T modulo<T>(Object? first, Object? second) {
return JS<dynamic>('Object', '# % #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool equal<T>(Object? first, Object? second) {
return JS<bool>('bool', '# == #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool strictEqual<T>(Object? first, Object? second) {
return JS<bool>('bool', '# === #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool notEqual<T>(Object? first, Object? second) {
return JS<bool>('bool', '# != #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool strictNotEqual<T>(Object? first, Object? second) {
return JS<bool>('bool', '# !== #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool greaterThan<T>(Object? first, Object? second) {
return JS<bool>('bool', '# > #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool greaterThanOrEqual<T>(Object? first, Object? second) {
return JS<bool>('bool', '# >= #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool lessThan<T>(Object? first, Object? second) {
return JS<bool>('bool', '# < #', first, second);
}
@patch
@pragma('dart2js:tryInline')
bool lessThanOrEqual<T>(Object? first, Object? second) {
return JS<bool>('bool', '# <= #', first, second);
}
@patch
Future<T> promiseToFuture<T>(Object jsPromise) {
final completer = Completer<T>();
final success = convertDartClosureToJS((r) => completer.complete(r), 1);
final error = convertDartClosureToJS((e) {
// Note that `completeError` expects a non-nullable error regardless of
// whether null-safety is enabled, so a `NullRejectionException` is always
// provided if the error is `null` or `undefined`.
if (e == null) {
return completer.completeError(
NullRejectionException._(JS('bool', '# === undefined', e)));
}
return completer.completeError(e);
}, 1);
JS('', '#.then(#, #)', jsPromise, success, error);
return completer.future;
}
@patch
Object? objectGetPrototypeOf(Object? object) =>
JS('', 'Object.getPrototypeOf(#)', object);
@patch
Object? get objectPrototype => JS('', 'Object.prototype');
@patch
List<Object?> objectKeys(Object? object) => JS('', 'Object.keys(#)', object);
@patch
Object? dartify(Object? o) {
var _convertedObjects = HashMap.identity();
Object? convert() {
if (_convertedObjects.containsKey(o)) {
return _convertedObjects[o];
}
if (o == null || o is bool || o is num || o is String) return o;
if (isJavaScriptSimpleObject(o)) {
Map<Object?, Object?> dartObject = {};
_convertedObjects[o] = dartObject;
List<Object?> originalKeys = objectKeys(o);
List<Object?> dartKeys = [];
for (Object? key in originalKeys) {
dartKeys.add(dartify(key));
}
for (int i = 0; i < originalKeys.length; i++) {
Object? jsKey = originalKeys[i];
Object? dartKey = dartKeys[i];
if (jsKey != null) {
dartObject[dartKey] = dartify(getProperty(o, jsKey));
}
}
return dartObject;
}
if (isJavaScriptArray(o)) {
List<Object?> dartObject = [];
_convertedObjects[o] = dartObject;
int length = getProperty(o, 'length');
for (int i = 0; i < length; i++) {
dartObject.add(dartify(getProperty(o, i)));
}
return dartObject;
}
throw ArgumentError(
"JavaScriptObject $o must be a primitive, simple object, or array");
}
return convert();
}