/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public Value evalCopy(Env env) {
Value obj = env.getThis();
if (obj.isNull()) {
return cannotUseThisError(env);
}
return obj.getThisField(env, _name).copy();
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public Value evalArg(Env env, boolean isTop) {
Value obj = env.getThis();
if (obj.isNull()) {
return cannotUseThisError(env);
}
return obj.getThisFieldArg(env, _name);
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public void evalUnset(Env env) {
Value obj = env.getThis();
if (obj.isNull()) {
cannotUseThisError(env);
}
obj.unsetThisField(_name);
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public Value evalAssignRef(Env env, Value value) {
Value obj = env.getThis();
if (obj.isNull()) {
cannotUseThisError(env);
}
obj.putThisField(env, _name, value);
return value;
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public Var evalVar(Env env) {
Value obj = env.getThis();
if (obj.isNull()) {
cannotUseThisError(env);
return new Var();
}
return obj.getThisFieldVar(env, _name);
}
/** Evaluates as an array index assign ($a[index] = value). */
@Override
public Value evalArrayAssign(Env env, Value index, Value value) {
Value obj = env.getThis();
if (obj.isNull()) {
cannotUseThisError(env);
}
Value fieldVar = obj.getThisFieldVar(env, _name);
// php/03mm
return fieldVar.put(index, value);
}
/**
* Evaluates the expression.
*
* @param env the calling environment.
* @return the expression value.
*/
@Override
public Value eval(Env env) {
Value qThis = env.getThis();
BiancaClass cls = qThis.getBiancaClass();
if (cls == null) {
env.error(getLocation(), L.l("no calling class found"));
return NullValue.NULL;
}
Value[] values = evalArgs(env, _args);
env.pushCall(this, cls, values);
try {
return cls.callMethod(env, qThis, _methodName, _hash, values);
} finally {
env.popCall();
}
}
@Override
protected int getMarshalingCostImpl(Value argValue) {
return argValue.toCharMarshalCost();
/*
if (argValue.isUnicode() && argValue.length() == 1)
return Marshal.ONE;
else if (argValue.isString()
&& !argValue.isBinary() && argValue.length() == 1)
return Marshal.ONE; // php/0ch0
else if (argValue.isLongConvertible())
return Marshal.THREE;
else
return Marshal.FOUR;
*/
}
/** Returns the trace. */
public static Value getTraceAsString(Env env, @This Value obj) {
Value trace = getTrace(env, obj);
StringValue sb = new StringValue();
sb.append("<trace>");
Iterator<Value> iter = trace.getValueIterator(env);
while (iter.hasNext()) {
Value value = iter.next();
sb = sb.append('\n');
sb = sb.append(value.get(FILE));
sb = sb.append(':');
sb = sb.append(value.get(LINE));
sb = sb.append(": ");
sb = sb.append(value.get(FUNCTION));
}
return sb;
}
/** Returns the trace. */
public static Value getJavaException(Env env, @This Value obj) {
return obj.getField(env, JAVA_EXCEPTION);
}
/** Returns the trace. */
public static Value getTrace(Env env, @This Value obj) {
return obj.getField(env, TRACE);
}
@Override
public Object marshal(Env env, Value value, Class expectedClass) {
return new Character(value.toChar());
}