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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * published by the Free Software Foundation.  Oracle designates this
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 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.oracle.truffle.api.instrument;

import com.oracle.truffle.api.nodes.Node;

/**
 * Enables instrumentation by attaching {@linkplain Probe Probes} to some nodes in a (newly created,
 * not yet executed) AST.
 *
 * @see Probe
 * @see Instrumenter#addProbeListener(ProbeListener)
 */
public interface ASTProber {

    /**
     * Walk the AST starting at a node and enable instrumentation at selected nodes by attaching
     * {@linkplain Probe Probes} to them. Ignore {@linkplain Instrumenter#isInstrumentable(Node)
     * non-instrumentable} nodes.
     */
    void probeAST(Instrumenter instrumenter, Node node);

}