/**
* ECMA 15.11.4.4 Error.prototype.toString ( )
*
* @param self self reference
* @return this NativeError as a string
*/
@Function(attributes = Attribute.NOT_ENUMERABLE)
public static Object toString(final Object self) {
// Step 1 and 2 : check if 'self' is object it not throw TypeError
final ScriptObject sobj = Global.checkObject(self);
// Step 3 & 4 : get "name" and convert to String.
// But if message is undefined make it "Error".
Object name = sobj.get("name");
if (name == UNDEFINED) {
name = "Error";
} else {
name = JSType.toString(name);
}
// Steps 5, 6, & 7 : get "message" and convert to String.
// if 'message' is undefined make it "" (empty String).
Object msg = sobj.get("message");
if (msg == UNDEFINED) {
msg = "";
} else {
msg = JSType.toString(msg);
}
// Step 8 : if name is empty, return msg
if (((String) name).isEmpty()) {
return msg;
}
// Step 9 : if message is empty, return name
if (((String) msg).isEmpty()) {
return name;
}
// Step 10 : return name + ": " + msg
return name + ": " + msg;
}
/**
* Nashorn extension: global.input (shell-interactive-mode-only) Read one or more lines of input
* from the standard input till the given end marker is seen in standard input.
*
* @param self self reference
* @param endMarker String used as end marker for input
* @param prompt String used as input prompt
* @return line that was read
* @throws IOException if an exception occurs
*/
public static Object input(final Object self, final Object endMarker, final Object prompt)
throws IOException {
final String endMarkerStr = (endMarker != UNDEFINED) ? JSType.toString(endMarker) : "";
final String promptStr = (prompt != UNDEFINED) ? JSType.toString(prompt) : ">> ";
final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
final StringBuilder buf = new StringBuilder();
while (true) {
System.out.print(promptStr);
final String line = reader.readLine();
if (line == null || line.equals(endMarkerStr)) {
break;
}
buf.append(line);
buf.append('\n');
}
return buf.toString();
}
@SuppressWarnings("LeakingThisInConstructor")
private NativeError(final Object msg, final ScriptObject proto, final PropertyMap map) {
super(proto, map);
if (msg != UNDEFINED) {
this.instMessage = JSType.toString(msg);
} else {
this.delete(NativeError.MESSAGE, false);
}
initException(this);
}
public String toJson(Object aObj) {
assert writeJsonFunc != null : SCRIPT_NOT_INITIALIZED;
if (aObj instanceof Undefined) { // nashorn JSON parser could not work with undefined.
aObj = null;
}
if (aObj instanceof JSObject
|| aObj instanceof CharSequence
|| aObj instanceof Number
|| aObj instanceof Boolean
|| aObj instanceof ScriptObject
|| aObj == null) {
return JSType.toString(writeJsonFunc.call(null, new Object[] {aObj}));
} else {
throw new IllegalArgumentException("Java object couldn't be converted to JSON!");
}
}
private static String getScriptStackString(final ScriptObject sobj, final Throwable exp) {
return JSType.toString(sobj) + "\n" + NashornException.getScriptStackString(exp);
}
/**
* Fetch String value of node.
*
* @return String value of node.
*/
public String getString() {
return JSType.toString(value);
}
@Override
public String getPropertyName() {
return JSType.toString(getObject());
}