Package org.eolang.opeo.decompilation

Class OperandStack

java.lang.Object

org.eolang.opeo.decompilation.OperandStack

public final class OperandStack
extends Object

Operand stack.

You can read more about it here

It emulates the behaviour of JVM operand stack.

Since:

0.2

Method Summary

Modifier and Type	Method	Description
void	dup()	Duplicate the higher value on the stack.
Optional<AstNode>	first()	Pop one node from the stack or return empty.
AstNode	pop()	Pop one node from the stack.
List<AstNode>	pop(int number)	Pop N nodes from the stack.
void	push(AstNode node)	Push one more node to the stack.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

first

public Optional<AstNode> first()

Pop one node from the stack or return empty.

Returns:

Optional node.

pop

public AstNode pop()

Pop one node from the stack.

Returns:

Node.

pop

public List<AstNode> pop(int number)

Pop N nodes from the stack.

Parameters:

number - Number of nodes to pop.

Returns:

Collection of nodes.

push

public void push(AstNode node)

Push one more node to the stack.

Parameters:

node - Node to add to the stack.

dup

public void dup()

Duplicate the higher value on the stack.