diff options
Diffstat (limited to 'src/jdk/nashorn/api/scripting/JSObject.java')
| -rw-r--r-- | src/jdk/nashorn/api/scripting/JSObject.java | 104 |
1 files changed, 28 insertions, 76 deletions
diff --git a/src/jdk/nashorn/api/scripting/JSObject.java b/src/jdk/nashorn/api/scripting/JSObject.java index a2d761b4..bd6e820b 100644 --- a/src/jdk/nashorn/api/scripting/JSObject.java +++ b/src/jdk/nashorn/api/scripting/JSObject.java @@ -30,14 +30,12 @@ import java.util.Collections; import java.util.Set; /** - * This is the base class for nashorn ScriptObjectMirror class. - * - * This class can also be subclassed by an arbitrary Java class. Nashorn will + * This interface can be implemented by an arbitrary Java class. Nashorn will * treat objects of such classes just like nashorn script objects. Usual nashorn * operations like obj[i], obj.foo, obj.func(), delete obj.foo will be glued - * to appropriate method call of this class. + * to appropriate method call of this interface. */ -public abstract class JSObject { +public interface JSObject { /** * Call this object as a JavaScript function. This is equivalent to * 'func.apply(thiz, args)' in JavaScript. @@ -46,9 +44,7 @@ public abstract class JSObject { * @param args arguments to method * @return result of call */ - public Object call(final Object thiz, final Object... args) { - throw new UnsupportedOperationException("call"); - } + public Object call(final Object thiz, final Object... args); /** * Call this 'constructor' JavaScript function to create a new object. @@ -57,9 +53,7 @@ public abstract class JSObject { * @param args arguments to method * @return result of constructor call */ - public Object newObject(final Object... args) { - throw new UnsupportedOperationException("newObject"); - } + public Object newObject(final Object... args); /** * Evaluate a JavaScript expression. @@ -67,20 +61,7 @@ public abstract class JSObject { * @param s JavaScript expression to evaluate * @return evaluation result */ - public Object eval(final String s) { - throw new UnsupportedOperationException("eval"); - } - - /** - * Call a JavaScript function member of this object. - * - * @param name name of the member function to call - * @param args arguments to be passed to the member function - * @return result of call - */ - public Object callMember(final String name, final Object... args) { - throw new UnsupportedOperationException("call"); - } + public Object eval(final String s); /** * Retrieves a named member of this JavaScript object. @@ -88,9 +69,7 @@ public abstract class JSObject { * @param name of member * @return member */ - public Object getMember(final String name) { - return null; - } + public Object getMember(final String name); /** * Retrieves an indexed member of this JavaScript object. @@ -98,9 +77,7 @@ public abstract class JSObject { * @param index index slot to retrieve * @return member */ - public Object getSlot(final int index) { - return null; - } + public Object getSlot(final int index); /** * Does this object have a named member? @@ -108,9 +85,7 @@ public abstract class JSObject { * @param name name of member * @return true if this object has a member of the given name */ - public boolean hasMember(final String name) { - return false; - } + public boolean hasMember(final String name); /** * Does this object have a indexed property? @@ -118,18 +93,14 @@ public abstract class JSObject { * @param slot index to check * @return true if this object has a slot */ - public boolean hasSlot(final int slot) { - return false; - } + public boolean hasSlot(final int slot); /** * Remove a named member from this JavaScript object * * @param name name of the member */ - public void removeMember(final String name) { - //empty - } + public void removeMember(final String name); /** * Set a named member in this JavaScript object @@ -137,9 +108,7 @@ public abstract class JSObject { * @param name name of the member * @param value value of the member */ - public void setMember(final String name, final Object value) { - //empty - } + public void setMember(final String name, final Object value); /** * Set an indexed member in this JavaScript object @@ -147,9 +116,7 @@ public abstract class JSObject { * @param index index of the member slot * @param value value of the member */ - public void setSlot(final int index, final Object value) { - //empty - } + public void setSlot(final int index, final Object value); // property and value iteration @@ -158,20 +125,14 @@ public abstract class JSObject { * * @return set of property names */ - @SuppressWarnings("unchecked") - public Set<String> keySet() { - return Collections.EMPTY_SET; - } + public Set<String> keySet(); /** * Returns the set of all property values of this object. * * @return set of property values. */ - @SuppressWarnings("unchecked") - public Collection<Object> values() { - return Collections.EMPTY_SET; - } + public Collection<Object> values(); // JavaScript instanceof check @@ -181,9 +142,7 @@ public abstract class JSObject { * @param instance instace to check * @return true if the given 'instance' is an instance of this 'function' object */ - public boolean isInstance(final Object instance) { - return false; - } + public boolean isInstance(final Object instance); /** * Checking whether this object is an instance of the given 'clazz' object. @@ -191,47 +150,40 @@ public abstract class JSObject { * @param clazz clazz to check * @return true if this object is an instance of the given 'clazz' */ - public boolean isInstanceOf(final Object clazz) { - if (clazz instanceof JSObject) { - return ((JSObject)clazz).isInstance(this); - } - - return false; - } + public boolean isInstanceOf(final Object clazz); /** * ECMA [[Class]] property * * @return ECMA [[Class]] property value of this object */ - public String getClassName() { - return getClass().getName(); - } + public String getClassName(); /** * Is this a function object? * * @return if this mirror wraps a ECMAScript function instance */ - public boolean isFunction() { - return false; - } + public boolean isFunction(); /** * Is this a 'use strict' function object? * * @return true if this mirror represents a ECMAScript 'use strict' function */ - public boolean isStrictFunction() { - return false; - } + public boolean isStrictFunction(); /** * Is this an array object? * * @return if this mirror wraps a ECMAScript array object */ - public boolean isArray() { - return false; - } + public boolean isArray(); + + /** + * Returns this object's numeric value. + * + * @return this object's numeric value. + */ + public double toNumber(); } |