ValueProfile

java.lang.Object
- com.oracle.truffle.api.utilities.ValueProfile

Direct Known Subclasses:

ExactClassValueProfile, IdentityValueProfile, PrimitiveValueProfile
```
public abstract class ValueProfile
extends java.lang.Object
```
Utility class to speculate on certain properties of values. Example usage:
```
 private final ValueProfile classProfile = ValueProfile.createClassProfile();
 
 return classProfile.profile(value);
 
```
All instances of ValueProfile (and subclasses) must be held in final fields for compiler optimizations to take effect.
See Also:

createPrimitiveProfile(), createIdentityProfile(), createClassProfile()

Constructor Summary

Constructors
Constructor Description

ValueProfile()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static ValueProfile`	`createClassProfile()`	Returns a `ValueProfile` that speculates on the exact class of a value.
`static ValueProfile`	`createIdentityProfile()`	Returns a `ValueProfile` that speculates on the object identity of a value.
`static PrimitiveValueProfile`	`createPrimitiveProfile()`	Returns a `PrimitiveValueProfile` that speculates on the primitive equality or object identity of a value.
`abstract <T> T`	`profile(T value)`

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

- Constructor Detail
  - ValueProfile
```
public ValueProfile()
```
- Method Detail
  - profile
```
public abstract <T> T profile(T value)
```
  - createPrimitiveProfile
```
public static PrimitiveValueProfile createPrimitiveProfile()
```
    Returns a PrimitiveValueProfile that speculates on the primitive equality or object identity of a value.
  - createClassProfile
```
public static ValueProfile createClassProfile()
```
    Returns a ValueProfile that speculates on the exact class of a value.
  - createIdentityProfile
```
public static ValueProfile createIdentityProfile()
```
    Returns a ValueProfile that speculates on the object identity of a value.