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Truffle is a multi-language framework for executing dynamic languages
that achieves high performance when combined with Graal.
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package com.oracle.truffle.api.nodes;
import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.CompilerDirectives.CompilationFinal;
import com.oracle.truffle.api.Truffle;
import com.oracle.truffle.api.frame.VirtualFrame;
/**
* Represents an indirect call to a {@link CallTarget}. Indirect calls are calls for which the
* {@link CallTarget} may change dynamically for each consecutive call. This part of the Truffle API
* enables the runtime system to perform additional optimizations on indirect calls.
*
* Please note: This class is not intended to be sub classed by guest language implementations.
*
* @see DirectCallNode for faster calls with a constantly known {@link CallTarget}.
* @since 0.8 or earlier
*/
public abstract class IndirectCallNode extends Node {
@Deprecated @CompilationFinal private VirtualFrame dummyFrame;
/**
* Constructor for implementation subclasses.
*
* @since 0.8 or earlier
*/
protected IndirectCallNode() {
}
/**
* Performs an indirect call to the given {@link CallTarget} target with the provided arguments.
*
* @param frame the caller frame
* @param target the {@link CallTarget} to call
* @param arguments the arguments to provide
* @return the return value of the call
* @since 0.8 or earlier
* @deprecated use call without frame instead
*/
@Deprecated
public Object call(VirtualFrame frame, CallTarget target, Object[] arguments) {
return call(target, arguments);
}
/**
* Performs an indirect call to the given {@link CallTarget} target with the provided arguments.
*
* @param target the {@link CallTarget} to call
* @param arguments the arguments to provide
* @return the return value of the call
* @since 0.23
*/
public Object call(CallTarget target, Object[] arguments) {
// TODO change to varargs as soon as #call(VirtualFrame, Object[] will removed.
return call(DirectCallNode.LEGACY_FRAME, target, arguments);
}
/** @since 0.8 or earlier */
public static IndirectCallNode create() {
return Truffle.getRuntime().createIndirectCallNode();
}
}
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