ObjectType:stack

From Lavish Software Wiki

Contents 1 Overview 2 Members 3 Methods 4 Declaring stack Variables 4.1 Example 1 5 Adding items to a stack 5.1 Example 1 6 Removing items from a stack 6.1 Example 1 7 Viewing the stack 7.1 Example 1 8 See Also

Overview

A stack is a first-in last-out list of objects.

Members

• sub-type Top: Retrieves the first object in the stack

Methods

• Push[...]: Adds an object to the stack, passing any parameters to the initialization for the given object type
• Pop: Removes the first object in the stack

Declaring stack Variables

stack objects require a sub-type -- an object type to be a stack of. Append the sub-type to the word stack, with a colon separating the words. It is possible to have sub-subtypes (such as stack:stack:int for a stack of stacks of ints).

Example 1

Declaring a stack of "int"

variable stack:int MyStack

Adding items to a stack

To add an item to a stack, use the stack method, as demonstrated in this example

Example 1

variable stack:int MyStack
MyStack:Push[15]
MyStack:Push[25]

Removing items from a stack

Items are removed in the order stackd -- the first item stackd is the first that will be removed. To remove an item, use the Pop method, as demonstrated in this example

Example 1

variable stack:int MyStack
MyStack:Push[15]
MyStack:Push[25]
MyStack:Pop
/* Only 15 is now in the stack */

Viewing the stack

To access the first object in the stack (e.g. the first person in line), use the Top member, as demonstrated in this example

Example 1

variable stack:int MyStack
MyStack:Push[15]
MyStack:Push[25]
echo \${MyStack.Top} should be 25: ${MyStack.Top}
MyStack:Pop
/* Only 15 is now in the stack */
echo \${MyStack.Top} should be 15: ${MyStack.Top}

See Also

• LavishScript