gecko-dev/js/js2/java/JSBoolean.java

52 строки
1017 B
Java

class JSBoolean extends JSValue {
static JSBoolean JSTrue = new JSBoolean(true);
static JSBoolean JSFalse = new JSBoolean(false);
private JSBoolean(boolean p)
{
b = p;
}
JSValue eval(Environment theEnv)
{
return this;
}
boolean isTrue()
{
return b;
}
boolean isFalse()
{
return !b;
}
JSValue bang(Environment theEnv) {
return (b) ? JSFalse : JSTrue;
}
JSValue typeof(Environment theEnv) {
return new JSString("boolean");
}
JSBoolean toJSBoolean(Environment theEnv) {
return this;
}
JSValue toPrimitive(Environment theEnv, String hint) {
return this;
}
JSString toJSString(Environment theEnv) {
return (b) ? new JSString("true") : new JSString("false");
}
JSDouble toJSDouble(Environment theEnv) {
return (b) ? new JSDouble(1) : new JSDouble(0);
}
boolean b;
}