java.lang.Object
- com.tonic.analysis.simulation.metrics.StackMetrics

```
public class StackMetrics
extends Object
```
Immutable operand stack operation counts collected during simulation.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`StackMetrics`	`combine(StackMetrics other)`	Sums the operation counts of both metrics and keeps the deeper maximum depth.
`static StackMetrics`	`empty()`	Creates metrics with every count at zero.
`static StackMetrics`	`from(StackOperationListener listener)`	Snapshots the counts a listener accumulated.
`int`	`getDupCount()`
`int`	`getMaxDepth()`
`int`	`getNetChange()`
`int`	`getPopCount()`
`int`	`getPushCount()`
`int`	`getSwapCount()`
`int`	`getTotalOperations()`
`boolean`	`hasStackGrowth()`
`String`	`toString()`

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Method Detail
  - from
```
public static StackMetrics from(StackOperationListener listener)
```
    Snapshots the counts a listener accumulated.
    
    Parameters:
    
    listener - the listener to read counts from
    
    Returns:
    
    metrics holding that listener's counts
  - empty
```
public static StackMetrics empty()
```
    Creates metrics with every count at zero.
    
    Returns:
    
    all-zero metrics
  - getPushCount
```
public int getPushCount()
```
    Returns:
    
    the number of pushes
  - getPopCount
```
public int getPopCount()
```
    Returns:
    
    the number of pops
  - getDupCount
```
public int getDupCount()
```
    Returns:
    
    the number of dup operations
  - getSwapCount
```
public int getSwapCount()
```
    Returns:
    
    the number of swap operations
  - getMaxDepth
```
public int getMaxDepth()
```
    Returns:
    
    the deepest stack observed
  - getTotalOperations
```
public int getTotalOperations()
```
    Returns:
    
    pushes, pops, dups and swaps summed
  - getNetChange
```
public int getNetChange()
```
    Returns:
    
    pushes minus pops
  - hasStackGrowth
```
public boolean hasStackGrowth()
```
    Returns:
    
    true when more pushes than pops were counted
  - combine
```
public StackMetrics combine(StackMetrics other)
```
    Sums the operation counts of both metrics and keeps the deeper maximum depth.
    
    Parameters:
    
    other - the metrics to add
    
    Returns:
    
    the combined metrics
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class StackMetrics

Method Summary

Methods inherited from class java.lang.Object

Method Detail

from

empty

getPushCount

getPopCount

getDupCount

getSwapCount

getMaxDepth

getTotalOperations

getNetChange

hasStackGrowth

combine

toString