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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<div class="subTitle">com.oracle.truffle.api</div>
<h2 title="Interface TruffleRuntime" class="title">Interface TruffleRuntime</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../com/oracle/truffle/api/impl/DefaultTruffleRuntime.html" title="class in com.oracle.truffle.api.impl">DefaultTruffleRuntime</a></dd>
</dl>
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<pre>public interface <span class="strong">TruffleRuntime</span></pre>
<div class="block">Interface representing a Truffle runtime object. The runtime is responsible for creating call
 targets and performing optimizations for them.</div>
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/Assumption.html" title="interface in com.oracle.truffle.api">Assumption</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createAssumption()">createAssumption</a></strong>()</code>
<div class="block">Creates a new assumption object that can be checked and invalidated.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/Assumption.html" title="interface in com.oracle.truffle.api">Assumption</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createAssumption(java.lang.String)">createAssumption</a></strong>(java.lang.String&nbsp;name)</code>
<div class="block">Creates a new assumption object with a given name that can be checked and invalidated.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api">RootCallTarget</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createCallTarget(com.oracle.truffle.api.nodes.RootNode)">createCallTarget</a></strong>(<a href="../../../../com/oracle/truffle/api/nodes/RootNode.html" title="class in com.oracle.truffle.api.nodes">RootNode</a>&nbsp;rootNode)</code>
<div class="block">Creates a new call target for a given root node.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/CompilerOptions.html" title="interface in com.oracle.truffle.api">CompilerOptions</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createCompilerOptions()">createCompilerOptions</a></strong>()</code>
<div class="block">Creates an object which allows you to test for support of and set options specific for this
 runtime.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/nodes/DirectCallNode.html" title="class in com.oracle.truffle.api.nodes">DirectCallNode</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createDirectCallNode(com.oracle.truffle.api.CallTarget)">createDirectCallNode</a></strong>(<a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api">CallTarget</a>&nbsp;target)</code>
<div class="block">Creates a new runtime specific version of <a href="../../../../com/oracle/truffle/api/nodes/DirectCallNode.html" title="class in com.oracle.truffle.api.nodes"><code>DirectCallNode</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/nodes/IndirectCallNode.html" title="class in com.oracle.truffle.api.nodes">IndirectCallNode</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createIndirectCallNode()">createIndirectCallNode</a></strong>()</code>
<div class="block">Creates a new runtime specific version of <a href="../../../../com/oracle/truffle/api/nodes/IndirectCallNode.html" title="class in com.oracle.truffle.api.nodes"><code>IndirectCallNode</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/nodes/LoopNode.html" title="class in com.oracle.truffle.api.nodes">LoopNode</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createLoopNode(com.oracle.truffle.api.nodes.RepeatingNode)">createLoopNode</a></strong>(<a href="../../../../com/oracle/truffle/api/nodes/RepeatingNode.html" title="interface in com.oracle.truffle.api.nodes">RepeatingNode</a>&nbsp;body)</code>
<div class="block">Experimental API.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/frame/MaterializedFrame.html" title="interface in com.oracle.truffle.api.frame">MaterializedFrame</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createMaterializedFrame(java.lang.Object[])">createMaterializedFrame</a></strong>(java.lang.Object[]&nbsp;arguments)</code>
<div class="block">Creates a new materialized frame object that can be used to store values.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/frame/MaterializedFrame.html" title="interface in com.oracle.truffle.api.frame">MaterializedFrame</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createMaterializedFrame(java.lang.Object[],%20com.oracle.truffle.api.frame.FrameDescriptor)">createMaterializedFrame</a></strong>(java.lang.Object[]&nbsp;arguments,
                       <a href="../../../../com/oracle/truffle/api/frame/FrameDescriptor.html" title="class in com.oracle.truffle.api.frame">FrameDescriptor</a>&nbsp;frameDescriptor)</code>
<div class="block">Creates a new materialized frame object with the given frame descriptor that can be used to
 store values.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/frame/VirtualFrame.html" title="interface in com.oracle.truffle.api.frame">VirtualFrame</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createVirtualFrame(java.lang.Object[],%20com.oracle.truffle.api.frame.FrameDescriptor)">createVirtualFrame</a></strong>(java.lang.Object[]&nbsp;arguments,
                  <a href="../../../../com/oracle/truffle/api/frame/FrameDescriptor.html" title="class in com.oracle.truffle.api.frame">FrameDescriptor</a>&nbsp;frameDescriptor)</code>
<div class="block">Creates a new virtual frame object that can be used to store values and is potentially
 optimizable by the runtime.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame">FrameInstance</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#getCallerFrame()">getCallerFrame</a></strong>()</code>
<div class="block">Accesses the caller frame.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>java.util.Collection&lt;<a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api">RootCallTarget</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#getCallTargets()">getCallTargets</a></strong>()</code>
<div class="block">Returns a list of all still referenced <a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api"><code>RootCallTarget</code></a> instances that were created
 using <a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createCallTarget(com.oracle.truffle.api.nodes.RootNode)"><code>createCallTarget(RootNode)</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#getCapability(java.lang.Class)">getCapability</a></strong>(java.lang.Class&lt;T&gt;&nbsp;capability)</code>
<div class="block">Requests a capability from the runtime.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame">FrameInstance</a></code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#getCurrentFrame()">getCurrentFrame</a></strong>()</code>
<div class="block">Accesses the current frame, i.e., the frame of the closest <a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api"><code>CallTarget</code></a>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>java.lang.String</code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#getName()">getName</a></strong>()</code>
<div class="block">Name describing this runtime implementation for debugging purposes.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#iterateFrames(com.oracle.truffle.api.frame.FrameInstanceVisitor)">iterateFrames</a></strong>(<a href="../../../../com/oracle/truffle/api/frame/FrameInstanceVisitor.html" title="interface in com.oracle.truffle.api.frame">FrameInstanceVisitor</a>&lt;T&gt;&nbsp;visitor)</code>
<div class="block">Accesses the current stack, i.e., the contents of the <a href="../../../../com/oracle/truffle/api/frame/Frame.html" title="interface in com.oracle.truffle.api.frame"><code>Frame</code></a>s and the associated
 <a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api"><code>CallTarget</code></a>s.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#notifyTransferToInterpreter()">notifyTransferToInterpreter</a></strong>()</code>
<div class="block">Internal API method.</div>
</td>
</tr>
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<h3>Method Detail</h3>
<a name="getName()">
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<h4>getName</h4>
<pre>java.lang.String&nbsp;getName()</pre>
<div class="block">Name describing this runtime implementation for debugging purposes.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the name as a String</dd></dl>
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</ul>
<a name="createCallTarget(com.oracle.truffle.api.nodes.RootNode)">
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<h4>createCallTarget</h4>
<pre><a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api">RootCallTarget</a>&nbsp;createCallTarget(<a href="../../../../com/oracle/truffle/api/nodes/RootNode.html" title="class in com.oracle.truffle.api.nodes">RootNode</a>&nbsp;rootNode)</pre>
<div class="block">Creates a new call target for a given root node.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>rootNode</code> - the root node whose
            <a href="../../../../com/oracle/truffle/api/nodes/RootNode.html#execute(com.oracle.truffle.api.frame.VirtualFrame)"><code>RootNode.execute(com.oracle.truffle.api.frame.VirtualFrame)</code></a> method
            represents the entry point</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new call target object</dd></dl>
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<a name="createDirectCallNode(com.oracle.truffle.api.CallTarget)">
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<h4>createDirectCallNode</h4>
<pre><a href="../../../../com/oracle/truffle/api/nodes/DirectCallNode.html" title="class in com.oracle.truffle.api.nodes">DirectCallNode</a>&nbsp;createDirectCallNode(<a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api">CallTarget</a>&nbsp;target)</pre>
<div class="block">Creates a new runtime specific version of <a href="../../../../com/oracle/truffle/api/nodes/DirectCallNode.html" title="class in com.oracle.truffle.api.nodes"><code>DirectCallNode</code></a>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>target</code> - the direct <a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api"><code>CallTarget</code></a> to call</dd>
<dt><span class="strong">Returns:</span></dt><dd>the new call node</dd></dl>
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</ul>
<a name="createLoopNode(com.oracle.truffle.api.nodes.RepeatingNode)">
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<h4>createLoopNode</h4>
<pre><a href="../../../../com/oracle/truffle/api/nodes/LoopNode.html" title="class in com.oracle.truffle.api.nodes">LoopNode</a>&nbsp;createLoopNode(<a href="../../../../com/oracle/truffle/api/nodes/RepeatingNode.html" title="interface in com.oracle.truffle.api.nodes">RepeatingNode</a>&nbsp;body)</pre>
<div class="block">Experimental API. May change without notice.</div>
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<h4>createIndirectCallNode</h4>
<pre><a href="../../../../com/oracle/truffle/api/nodes/IndirectCallNode.html" title="class in com.oracle.truffle.api.nodes">IndirectCallNode</a>&nbsp;createIndirectCallNode()</pre>
<div class="block">Creates a new runtime specific version of <a href="../../../../com/oracle/truffle/api/nodes/IndirectCallNode.html" title="class in com.oracle.truffle.api.nodes"><code>IndirectCallNode</code></a>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the new call node</dd></dl>
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<h4>createAssumption</h4>
<pre><a href="../../../../com/oracle/truffle/api/Assumption.html" title="interface in com.oracle.truffle.api">Assumption</a>&nbsp;createAssumption()</pre>
<div class="block">Creates a new assumption object that can be checked and invalidated.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the newly created assumption object</dd></dl>
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<a name="createAssumption(java.lang.String)">
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<h4>createAssumption</h4>
<pre><a href="../../../../com/oracle/truffle/api/Assumption.html" title="interface in com.oracle.truffle.api">Assumption</a>&nbsp;createAssumption(java.lang.String&nbsp;name)</pre>
<div class="block">Creates a new assumption object with a given name that can be checked and invalidated.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>name</code> - the name for the new assumption</dd>
<dt><span class="strong">Returns:</span></dt><dd>the newly created assumption object</dd></dl>
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<h4>createVirtualFrame</h4>
<pre><a href="../../../../com/oracle/truffle/api/frame/VirtualFrame.html" title="interface in com.oracle.truffle.api.frame">VirtualFrame</a>&nbsp;createVirtualFrame(java.lang.Object[]&nbsp;arguments,
                              <a href="../../../../com/oracle/truffle/api/frame/FrameDescriptor.html" title="class in com.oracle.truffle.api.frame">FrameDescriptor</a>&nbsp;frameDescriptor)</pre>
<div class="block">Creates a new virtual frame object that can be used to store values and is potentially
 optimizable by the runtime.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the newly created virtual frame object</dd></dl>
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<h4>createMaterializedFrame</h4>
<pre><a href="../../../../com/oracle/truffle/api/frame/MaterializedFrame.html" title="interface in com.oracle.truffle.api.frame">MaterializedFrame</a>&nbsp;createMaterializedFrame(java.lang.Object[]&nbsp;arguments)</pre>
<div class="block">Creates a new materialized frame object that can be used to store values.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the newly created materialized frame object</dd></dl>
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<h4>createMaterializedFrame</h4>
<pre><a href="../../../../com/oracle/truffle/api/frame/MaterializedFrame.html" title="interface in com.oracle.truffle.api.frame">MaterializedFrame</a>&nbsp;createMaterializedFrame(java.lang.Object[]&nbsp;arguments,
                                        <a href="../../../../com/oracle/truffle/api/frame/FrameDescriptor.html" title="class in com.oracle.truffle.api.frame">FrameDescriptor</a>&nbsp;frameDescriptor)</pre>
<div class="block">Creates a new materialized frame object with the given frame descriptor that can be used to
 store values.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>frameDescriptor</code> - the frame descriptor describing this frame's values</dd>
<dt><span class="strong">Returns:</span></dt><dd>the newly created materialized frame object</dd></dl>
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<h4>createCompilerOptions</h4>
<pre><a href="../../../../com/oracle/truffle/api/CompilerOptions.html" title="interface in com.oracle.truffle.api">CompilerOptions</a>&nbsp;createCompilerOptions()</pre>
<div class="block">Creates an object which allows you to test for support of and set options specific for this
 runtime.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the newly created compiler options object</dd></dl>
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<a name="iterateFrames(com.oracle.truffle.api.frame.FrameInstanceVisitor)">
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<h4>iterateFrames</h4>
<pre>&lt;T&gt;&nbsp;T&nbsp;iterateFrames(<a href="../../../../com/oracle/truffle/api/frame/FrameInstanceVisitor.html" title="interface in com.oracle.truffle.api.frame">FrameInstanceVisitor</a>&lt;T&gt;&nbsp;visitor)</pre>
<div class="block">Accesses the current stack, i.e., the contents of the <a href="../../../../com/oracle/truffle/api/frame/Frame.html" title="interface in com.oracle.truffle.api.frame"><code>Frame</code></a>s and the associated
 <a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api"><code>CallTarget</code></a>s. Iteration starts at the caller frame, i.e., it does not include the
 current frame.

 Iteration continues as long as <a href="../../../../com/oracle/truffle/api/frame/FrameInstanceVisitor.html#visitFrame(com.oracle.truffle.api.frame.FrameInstance)"><code>FrameInstanceVisitor.visitFrame(com.oracle.truffle.api.frame.FrameInstance)</code></a>, which is invoked for
 every <a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame"><code>FrameInstance</code></a>, returns null. Any non-null result of the visitor indicates that
 frame iteration should stop.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>visitor</code> - the visitor that is called for every matching frame.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the last result returned by the visitor (which is non-null to indicate that iteration
         should stop), or null if the whole stack was iterated.</dd></dl>
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<h4>getCallerFrame</h4>
<pre><a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame">FrameInstance</a>&nbsp;getCallerFrame()</pre>
<div class="block">Accesses the caller frame. This is a convenience method that returns the first frame that is
 passed to the visitor of <a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#iterateFrames(com.oracle.truffle.api.frame.FrameInstanceVisitor)"><code>iterateFrames(com.oracle.truffle.api.frame.FrameInstanceVisitor&lt;T&gt;)</code></a>.</div>
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<h4>getCurrentFrame</h4>
<pre><a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame">FrameInstance</a>&nbsp;getCurrentFrame()</pre>
<div class="block">Accesses the current frame, i.e., the frame of the closest <a href="../../../../com/oracle/truffle/api/CallTarget.html" title="interface in com.oracle.truffle.api"><code>CallTarget</code></a>. It is
 important to note that this <a href="../../../../com/oracle/truffle/api/frame/FrameInstance.html" title="interface in com.oracle.truffle.api.frame"><code>FrameInstance</code></a> supports only slow path access.</div>
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<h4>getCapability</h4>
<pre>&lt;T&gt;&nbsp;T&nbsp;getCapability(java.lang.Class&lt;T&gt;&nbsp;capability)</pre>
<div class="block">Requests a capability from the runtime.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>capability</code> - the type of the interface representing the capability</dd>
<dt><span class="strong">Returns:</span></dt><dd>an implementation of the capability or <code>null</code> if the runtime does not offer it</dd></dl>
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<h4>getCallTargets</h4>
<pre>java.util.Collection&lt;<a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api">RootCallTarget</a>&gt;&nbsp;getCallTargets()</pre>
<div class="block">Returns a list of all still referenced <a href="../../../../com/oracle/truffle/api/RootCallTarget.html" title="interface in com.oracle.truffle.api"><code>RootCallTarget</code></a> instances that were created
 using <a href="../../../../com/oracle/truffle/api/TruffleRuntime.html#createCallTarget(com.oracle.truffle.api.nodes.RootNode)"><code>createCallTarget(RootNode)</code></a>.</div>
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<h4>notifyTransferToInterpreter</h4>
<pre>void&nbsp;notifyTransferToInterpreter()</pre>
<div class="block">Internal API method. Do not use.</div>
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