com.oracle.truffle.js.nodes.access.JSProxyPropertySetNode Maven / Gradle / Ivy
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package com.oracle.truffle.js.nodes.access;
import com.oracle.truffle.api.CompilerDirectives;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.NeverDefault;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.object.HiddenKey;
import com.oracle.truffle.api.profiles.InlinedBranchProfile;
import com.oracle.truffle.api.profiles.InlinedConditionProfile;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.nodes.cast.JSToBooleanNode;
import com.oracle.truffle.js.nodes.cast.JSToPropertyKeyNode;
import com.oracle.truffle.js.nodes.function.JSFunctionCallNode;
import com.oracle.truffle.js.runtime.Errors;
import com.oracle.truffle.js.runtime.JSArguments;
import com.oracle.truffle.js.runtime.JSContext;
import com.oracle.truffle.js.runtime.JSRuntime;
import com.oracle.truffle.js.runtime.builtins.JSProxy;
import com.oracle.truffle.js.runtime.builtins.JSUncheckedProxyHandlerObject;
import com.oracle.truffle.js.runtime.interop.JSInteropUtil;
import com.oracle.truffle.js.runtime.objects.JSDynamicObject;
import com.oracle.truffle.js.runtime.objects.JSObject;
import com.oracle.truffle.js.runtime.objects.Null;
import com.oracle.truffle.js.runtime.objects.PropertyDescriptor;
import com.oracle.truffle.js.runtime.objects.Undefined;
import com.oracle.truffle.js.runtime.util.JSClassProfile;
public abstract class JSProxyPropertySetNode extends JavaScriptBaseNode {
private final JSContext context;
private final boolean isStrict;
private final boolean defineProperty;
private final byte attributes;
@Child private JSFunctionCallNode call;
@Child private JSToBooleanNode toBoolean;
@Child protected GetMethodNode trapGet;
@Child private FromPropertyDescriptorNode fromPropertyDescriptorNode;
protected JSProxyPropertySetNode(JSContext context, boolean isStrict, boolean defineProperty, int attributes) {
this.context = context;
this.isStrict = isStrict;
this.defineProperty = defineProperty;
this.attributes = (byte) attributes;
this.call = JSFunctionCallNode.createCall();
this.trapGet = GetMethodNode.create(context, trapName(defineProperty));
this.toBoolean = JSToBooleanNode.create();
}
public abstract boolean executeWithReceiverAndValue(Object proxy, Object receiver, Object value, Object key);
public abstract boolean executeWithReceiverAndValueInt(Object proxy, Object receiver, int value, Object key);
@NeverDefault
public static JSProxyPropertySetNode create(JSContext context, boolean isStrict, boolean defineProperty, int attributes) {
return JSProxyPropertySetNodeGen.create(context, isStrict, defineProperty, attributes);
}
@Specialization
protected boolean doGeneric(JSDynamicObject proxy, Object receiver, Object value, Object key,
@Cached JSToPropertyKeyNode toPropertyKey,
@Cached InlinedBranchProfile errorBranch,
@Cached InlinedConditionProfile hasTrap,
@Cached JSClassProfile targetClassProfile) {
assert JSProxy.isJSProxy(proxy);
assert !(key instanceof HiddenKey);
Object propertyKey = toPropertyKey.execute(key);
if (JSRuntime.isPrivateSymbol(propertyKey)) {
errorBranch.enter(this);
if (isStrict) {
throw Errors.createTypeErrorPrivateSymbolInProxy(this);
} else {
return false;
}
}
JSDynamicObject handler = JSProxy.getHandler(proxy);
if (handler == Null.instance) {
errorBranch.enter(this);
throw Errors.createTypeErrorProxyRevoked(trapName(defineProperty), this);
}
Object target = JSProxy.getTarget(proxy);
Object trapFun = trapGet.executeWithTarget(handler);
if (hasTrap.profile(this, trapFun == Undefined.instance)) {
if (target instanceof JSDynamicObject targetObj) {
if (defineProperty) {
PropertyDescriptor desc = PropertyDescriptor.createData(value, attributes);
return JSObject.defineOwnProperty(targetObj, propertyKey, desc, isStrict);
} else {
return JSObject.setWithReceiver(targetObj, propertyKey, value, receiver, isStrict, targetClassProfile, this);
}
} else {
return JSInteropUtil.set(context, target, propertyKey, value, isStrict);
}
}
Object[] trapArgs;
PropertyDescriptor desc = null;
if (defineProperty) {
desc = PropertyDescriptor.createData(value, attributes);
trapArgs = JSArguments.create(handler, trapFun, target, propertyKey, fromPropertyDescriptor(desc));
} else {
trapArgs = JSArguments.create(handler, trapFun, target, propertyKey, value, receiver);
}
Object trapResult = call.executeCall(trapArgs);
boolean booleanTrapResult = toBoolean.executeBoolean(trapResult);
if (!booleanTrapResult) {
errorBranch.enter(this);
if (isStrict) {
throw Errors.createTypeErrorTrapReturnedFalsish(trapName(booleanTrapResult), propertyKey);
} else {
return false;
}
}
if (handler instanceof JSUncheckedProxyHandlerObject) {
return true;
}
if (defineProperty) {
return JSProxy.checkProxyDefinePropertyTrapInvariants(proxy, propertyKey, desc);
} else {
return JSProxy.checkProxySetTrapInvariants(proxy, propertyKey, value);
}
}
private static TruffleString trapName(boolean defineProperty) {
return defineProperty ? JSProxy.DEFINE_PROPERTY : JSProxy.SET;
}
private Object fromPropertyDescriptor(PropertyDescriptor desc) {
if (fromPropertyDescriptorNode == null) {
CompilerDirectives.transferToInterpreterAndInvalidate();
fromPropertyDescriptorNode = insert(FromPropertyDescriptorNodeGen.create());
}
return fromPropertyDescriptorNode.execute(desc, context);
}
}
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