/// <summary>
/// Bind the operand
/// </summary>
public override void Bind(EpsInterpreter interpreter)
{
var name = new NameOperand {
Value = this.Name
};
BoundOperand = DictionaryStackHelper.FindValue(interpreter.DictionaryStack, name);
}
public override void Execute(EpsInterpreter interpreter)
{
var name = new NameOperand {
Value = this.Name
};
var op = DictionaryStackHelper.FindValue(interpreter.DictionaryStack, name);
interpreter.OperandStack.Push(op);
}
public override void Execute(EpsInterpreter interpreter)
{
var operandStack = interpreter.OperandStack;
var key = operandStack.Pop();
var value = DictionaryStackHelper.FindValue(interpreter.DictionaryStack, key);
if (value == null)
{
throw new Exception($"unknown key \"{key}\"");
}
operandStack.Push(value.Copy());
}
public override void Execute(EpsInterpreter interpreter)
{
var operandStack = interpreter.OperandStack;
var value = operandStack.Pop();
var key = operandStack.Pop();
var dict = DictionaryStackHelper.FindDictionary(interpreter.DictionaryStack, key);
if (value == null)
{
dict = interpreter.DictionaryStack.Peek();
}
dict.Add(key, value);
}
public override void Execute(EpsInterpreter interpreter)
{
if (!IsExecutable)
{
interpreter.OperandStack.Push(Copy());
}
else
{
var name = new NameOperand(this.Value);
var op = DictionaryStackHelper.FindValue(interpreter.DictionaryStack, name);
if (op != null)
{
interpreter.Execute(op);
}
}
}
public override void Execute(EpsInterpreter interpreter)
{
var operandStack = interpreter.OperandStack;
bool ret = false;
var key = operandStack.Pop();
var dict = DictionaryStackHelper.FindDictionary(interpreter.DictionaryStack, key);
if (dict != null)
{
var dictOperand = new DictionaryOperand(dict);
operandStack.Push(dictOperand);
ret = true;
}
var boolean = new BooleanOperand {
Value = ret
};
operandStack.Push(boolean);
}
/// <summary>
/// Execute the operand
/// </summary>
public override void Execute(EpsInterpreter interpreter)
{
if (interpreter.BreakCurrentLoop)
{
return;
}
if (BoundOperand != null)
{
interpreter.Execute(BoundOperand);
}
else
{
var name = new NameOperand {
Value = this.Name
};
var op = DictionaryStackHelper.FindValue(interpreter.DictionaryStack, name);
if (op != null)
{
interpreter.Execute(op);
}
else
{
// Throwing an exception when the interpreter is within a stopped context
// would also be ok and is the prefered behavior. We test for the stopped
// context here to make debugging a bit easier. So that the debugger
// doesn't stop when the "exception" is handled in the postscript script,
// e.g. when tests are made if a command is available.
if (!interpreter.IsInStoppedContext)
{
throw new Exception($"unknown command \"{Name}\"");
}
interpreter.StopProcedure();
}
}
}
public override void Execute(EpsInterpreter interpreter)
{
DictionaryStackHelper.RemoveNonPermanentDictionaries(interpreter.DictionaryStack);
}
