com.google.javascript.rhino.jstype.Property Maven / Gradle / Ivy
/*
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Rhino code, released
* May 6, 1999.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1997-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Nick Santos
* Google Inc.
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU General Public License Version 2 or later (the "GPL"), in which
* case the provisions of the GPL are applicable instead of those above. If
* you wish to allow use of your version of this file only under the terms of
* the GPL and not to allow others to use your version of this file under the
* MPL, indicate your decision by deleting the provisions above and replacing
* them with the notice and other provisions required by the GPL. If you do
* not delete the provisions above, a recipient may use your version of this
* file under either the MPL or the GPL.
*
* ***** END LICENSE BLOCK ***** */
package com.google.javascript.rhino.jstype;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.javascript.rhino.JSDocInfo;
import com.google.javascript.rhino.Node;
import com.google.javascript.rhino.StaticSourceFile;
import java.util.Objects;
/**
* A property slot of an object.
*
* @author [email protected] (Nick Santos)
*/
public final class Property implements StaticTypedSlot, StaticTypedRef {
/** A property instance associated with particular owner type. */
public static final class OwnedProperty {
private final ObjectType owner;
private final Property value;
public OwnedProperty(ObjectType owner, Property value) {
this.owner = owner;
this.value = value;
}
public ObjectType getOwner() {
return owner;
}
public Property getValue() {
return value;
}
public ObjectType getOwnerInstanceType() {
return owner.isFunctionPrototypeType() ? owner.getOwnerFunction().getInstanceType() : owner;
}
public boolean isOwnedByInterface() {
return owner.isFunctionPrototypeType()
? owner.getOwnerFunction().isInterface()
: owner.isInterface();
}
}
private static final long serialVersionUID = 1L;
/**
* Property's name.
*/
private final String name;
/**
* Property's type.
*/
private JSType type;
/**
* Whether the property's type is inferred.
*/
private final boolean inferred;
/**
* The node corresponding to this property, e.g., a GETPROP node that
* declares this property.
*/
private Node propertyNode;
/** The JSDocInfo for this property. */
private JSDocInfo docInfo = null;
Property(String name, JSType type, boolean inferred,
Node propertyNode) {
this.name = checkNotNull(name);
this.type = checkNotNull(type, "Null type specified for {}", name);
this.inferred = inferred;
this.propertyNode = propertyNode;
}
@Override
public String getName() {
return name;
}
@Override
public Node getNode() {
return propertyNode;
}
@Override
public StaticSourceFile getSourceFile() {
return propertyNode == null ? null : propertyNode.getStaticSourceFile();
}
@Override
public Property getSymbol() {
return this;
}
@Override
public Property getDeclaration() {
return propertyNode == null ? null : this;
}
@Override
public JSType getType() {
return type;
}
@Override
public boolean isTypeInferred() {
return inferred;
}
boolean isFromExterns() {
return propertyNode == null ? false : propertyNode.isFromExterns();
}
void setType(JSType type) {
this.type = checkNotNull(type, "Null type specified for property {}", name);
}
@Override public JSDocInfo getJSDocInfo() {
return this.docInfo;
}
void setJSDocInfo(JSDocInfo info) {
this.docInfo = info;
}
public void setNode(Node n) {
this.propertyNode = n;
}
public String toString() {
return "Property { "
+ " name: " + this.name
+ ", type:" + this.type
+ ", inferred: " + this.inferred
+ "}";
}
@Override
public StaticTypedScope getScope() {
throw new UnsupportedOperationException();
}
@Override
public int hashCode() {
return Objects.hash(name, type);
}
}