Package io.github.eutro.wasm2j.core.ext

Class DelegatingExtHolder

java.lang.Object

io.github.eutro.wasm2j.core.ext.ExtHolder

io.github.eutro.wasm2j.core.ext.DelegatingExtHolder

All Implemented Interfaces:

ExtContainer

Direct Known Subclasses:

DelegatingExporter, Effect, Insn, Op

public abstract class DelegatingExtHolder
extends ExtHolder

An ExtHolder that additionally delegates to another ExtContainer if it can't find a given ext in itself.

Constructor Summary

Constructors

Constructor	Description
DelegatingExtHolder()

Method Summary

Modifier and Type	Method	Description
protected abstract ExtContainer	getDelegate()	Get the ExtHolder to delegate to.
<T> T	getNullable(Ext<T> ext)	Get the value associated with ext in this container, or null if not present.

Methods inherited from class io.github.eutro.wasm2j.core.ext.ExtHolder

attachExt, removeExt

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.github.eutro.wasm2j.core.ext.ExtContainer

getExt, getExtOrRun, getExtOrThrow

Constructor Details

DelegatingExtHolder

public DelegatingExtHolder()

Method Details

getDelegate

protected abstract ExtContainer getDelegate()

Get the ExtHolder to delegate to.

Returns:

The delegate.

getNullable

@Nullable
public <T> T getNullable(Ext<T> ext)

Description copied from interface: ExtContainer

Get the value associated with ext in this container, or null if not present.

If an ext was attached with ExtContainer.attachExt(Ext, Object), it should be returned, unless it was later removed with a call to ExtContainer.removeExt(Ext).

Specified by:

getNullable in interface ExtContainer

Overrides:

getNullable in class ExtHolder

Type Parameters:

T - The type of the ext.

Parameters:

ext - The ext.

Returns:

The value associated with ext in this container.