Package com.oracle.truffle.api.utilities

package com.oracle.truffle.api.utilities

Various utility classes that aim to make the development of TruffleLanguage guest languages easier.

We try to capture common language patterns in this package. Here is an overview of patterns that we have captured so far:

• AssumedValue speculates on global values to remain unchanged.
• CyclicAssumption speculates on assumptions that might invalidate more often but are assumed to stabilize over time.

Since:

0.8 or older

Related Packages

Package	Description
com.oracle.truffle.api	Do you want to implement your own Truffle based language? In such case start here.

Class	Description
AssumedValue<T>	A value that the compiler can assume is constant, but can be changed by invalidation.
CyclicAssumption	Holds an Assumption, and knows how to recreate it with the same properties on invalidation.
FinalBitSet	Read-only bitset designed for partial evaluation.
JSONHelper	Helper function that allows to dump the AST during creation to a JSON format.
JSONHelper.JSONArrayBuilder
JSONHelper.JSONObjectBuilder
JSONHelper.JSONStringBuilder
TriState	An utility value with three states, TriState.TRUE, TriState.FALSE, and TriState.UNDEFINED.
TruffleWeakReference<T>	Creates a new weak reference that is safe to be used in compiled code paths.