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/*
* Copyright (c) 2019, 2024, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* The Universal Permissive License (UPL), Version 1.0
*
* Subject to the condition set forth below, permission is hereby granted to any
* person obtaining a copy of this software, associated documentation and/or
* data (collectively the "Software"), free of charge and under any and all
* copyright rights in the Software, and any and all patent rights owned or
* freely licensable by each licensor hereunder covering either (i) the
* unmodified Software as contributed to or provided by such licensor, or (ii)
* the Larger Works (as defined below), to deal in both
*
* (a) the Software, and
*
* (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
* one is included with the Software each a "Larger Work" to which the Software
* is contributed by such licensors),
*
* without restriction, including without limitation the rights to copy, create
* derivative works of, display, perform, and distribute the Software and make,
* use, sell, offer for sale, import, export, have made, and have sold the
* Software and the Larger Work(s), and to sublicense the foregoing rights on
* either these or other terms.
*
* This license is subject to the following condition:
*
* The above copyright notice and either this complete permission notice or at a
* minimum a reference to the UPL must be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.oracle.truffle.js.nodes.interop;
import com.oracle.truffle.api.dsl.Bind;
import com.oracle.truffle.api.dsl.Cached;
import com.oracle.truffle.api.dsl.Cached.Shared;
import com.oracle.truffle.api.dsl.GenerateUncached;
import com.oracle.truffle.api.dsl.ImportStatic;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.object.DynamicObjectLibrary;
import com.oracle.truffle.api.object.Property;
import com.oracle.truffle.api.profiles.InlinedBranchProfile;
import com.oracle.truffle.api.strings.TruffleString;
import com.oracle.truffle.js.nodes.JavaScriptBaseNode;
import com.oracle.truffle.js.nodes.access.GetPrototypeNode;
import com.oracle.truffle.js.nodes.access.IsExtensibleNode;
import com.oracle.truffle.js.nodes.unary.IsCallableNode;
import com.oracle.truffle.js.runtime.Properties;
import com.oracle.truffle.js.runtime.Strings;
import com.oracle.truffle.js.runtime.builtins.JSModuleNamespace;
import com.oracle.truffle.js.runtime.builtins.JSProxy;
import com.oracle.truffle.js.runtime.objects.Accessor;
import com.oracle.truffle.js.runtime.objects.ExportResolution;
import com.oracle.truffle.js.runtime.objects.JSDynamicObject;
import com.oracle.truffle.js.runtime.objects.JSObject;
import com.oracle.truffle.js.runtime.objects.JSProperty;
import com.oracle.truffle.js.runtime.objects.Null;
import com.oracle.truffle.js.runtime.objects.PropertyDescriptor;
import com.oracle.truffle.js.runtime.objects.PropertyProxy;
import com.oracle.truffle.js.runtime.objects.Undefined;
/**
* This node implements the {@code isMember*} messages.
*/
@ImportStatic(Strings.class)
@GenerateUncached
public abstract class KeyInfoNode extends JavaScriptBaseNode {
public static final int READABLE = 1 << 0;
public static final int MODIFIABLE = 1 << 1;
public static final int INSERTABLE = 1 << 2;
public static final int INVOCABLE = 1 << 3;
public static final int REMOVABLE = 1 << 4;
public static final int READ_SIDE_EFFECTS = 1 << 5;
public static final int WRITE_SIDE_EFFECTS = 1 << 6;
public static final int WRITABLE = INSERTABLE | MODIFIABLE;
KeyInfoNode() {
}
public abstract boolean execute(JSDynamicObject receiver, String key, int query);
@Specialization(guards = {"!isJSProxy(target)", "property != null"}, limit = "2")
static boolean cachedOwnProperty(JSDynamicObject target, @SuppressWarnings("unused") String key, int query,
@Bind("this") Node node,
@CachedLibrary("target") DynamicObjectLibrary objectLibrary,
@Cached @Shared @SuppressWarnings("unused") TruffleString.FromJavaStringNode fromJavaStringNode,
@Bind("fromJavaString(fromJavaStringNode, key)") TruffleString tStringKey,
@Bind("objectLibrary.getProperty(target, tStringKey)") Property property,
@Cached @Shared IsCallableNode isCallable,
@Cached InlinedBranchProfile proxyBranch,
@Cached InlinedBranchProfile moduleNamespaceBranch) {
if ((query & READABLE) != 0) {
return true;
}
if (JSProperty.isAccessor(property)) {
Accessor accessor = (Accessor) Properties.getOrDefault(objectLibrary, target, tStringKey, null);
if ((query & MODIFIABLE) != 0 && accessor.hasSetter()) {
return true;
}
if ((query & READ_SIDE_EFFECTS) != 0 && accessor.hasGetter()) {
return true;
}
if ((query & WRITE_SIDE_EFFECTS) != 0 && accessor.hasSetter()) {
return true;
}
if ((query & REMOVABLE) != 0 && JSProperty.isConfigurable(property)) {
return true;
}
} else {
assert JSProperty.isData(property);
if ((query & MODIFIABLE) != 0 && JSProperty.isWritable(property)) {
return true;
}
if ((query & INVOCABLE) != 0) {
Object value = Properties.getOrDefault(objectLibrary, target, tStringKey, Undefined.instance);
if (JSProperty.isDataSpecial(property)) {
if (JSProperty.isProxy(property)) {
proxyBranch.enter(node);
value = ((PropertyProxy) value).get(target);
} else {
assert JSProperty.isModuleNamespaceExport(property) : property;
moduleNamespaceBranch.enter(node);
value = JSModuleNamespace.getBindingValue((ExportResolution) value);
}
}
if (isCallable.executeBoolean(value)) {
return true;
}
}
if ((query & REMOVABLE) != 0 && JSProperty.isConfigurable(property)) {
return true;
}
}
return false;
}
@Specialization(replaces = "cachedOwnProperty")
static boolean member(JSDynamicObject target, String key, int query,
@Cached GetPrototypeNode getPrototype,
@Cached @Shared IsCallableNode isCallable,
@Cached IsExtensibleNode isExtensible,
@Cached @Shared TruffleString.FromJavaStringNode fromJavaStringNode) {
TruffleString tStringKey = Strings.fromJavaString(fromJavaStringNode, key);
PropertyDescriptor desc = null;
boolean isProxy = false;
for (JSDynamicObject proto = target; proto != Null.instance; proto = getPrototype.execute(proto)) {
desc = JSObject.getOwnProperty(proto, tStringKey);
if (JSProxy.isJSProxy(proto)) {
isProxy = true;
break;
}
if (desc != null) {
break;
}
}
if (desc == null) {
if ((query & INSERTABLE) != 0 && isExtensible.executeBoolean(target)) {
return true;
}
return false;
}
boolean hasGet = desc.hasGet() && desc.getGet() != Undefined.instance;
boolean hasSet = desc.hasSet() && desc.getSet() != Undefined.instance;
boolean writable = hasSet || (!hasGet && desc.getIfHasWritable(true));
boolean readSideEffects = isProxy || hasGet;
boolean writeSideEffects = isProxy || hasSet;
if ((query & READABLE) != 0) {
return true;
}
if ((query & MODIFIABLE) != 0 && writable) {
return true;
}
if ((query & READ_SIDE_EFFECTS) != 0 && readSideEffects) {
return true;
}
if ((query & WRITE_SIDE_EFFECTS) != 0 && writeSideEffects) {
return true;
}
if ((query & INVOCABLE) != 0 && desc.isDataDescriptor() && isCallable.executeBoolean(desc.getValue())) {
return true;
}
if ((query & REMOVABLE) != 0 && desc.getConfigurable()) {
return true;
}
return false;
}
}
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