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package com.oracle.truffle.api.dsl;
import com.oracle.truffle.api.TruffleLanguage;
import com.oracle.truffle.api.nodes.Node;
import com.oracle.truffle.api.nodes.NodeUtil;
import com.oracle.truffle.api.nodes.NodeVisitor;
import com.oracle.truffle.api.nodes.RootNode;
/**
* Helper class to prepare AOT enabled nodes for AOT in {@link RootNode#prepareForAOT}.
*
* See also the usage
* tutorial on the website.
*
* @see GenerateAOT
* @since 21.1
*/
public final class AOTSupport {
/*
* No instances.
*/
private AOTSupport() {
}
/**
* Recursively prepares an AST for AOT compilation. If an AST is already prepared for AOT then
* this method has no effect. The AST lock will be held during this operation.
*
* @see GenerateAOT
* @see RootNode#prepareForAOT
* @since 21.1
*/
public static void prepareForAOT(RootNode root) {
root.atomic(new Runnable() {
public void run() {
final TruffleLanguage language = DSLAccessor.nodeAccessor().getLanguage(root);
NodeUtil.forEachChild(root, new NodeVisitor() {
public boolean visit(Node node) {
if (node instanceof GenerateAOT.Provider) {
GenerateAOT.Provider provider = (GenerateAOT.Provider) node;
if (node.isAdoptable() && node.getRootNode() == null) {
throw new AssertionError("Node is not yet adopted before prepare " + node);
}
provider.prepareForAOT(language, root);
}
return NodeUtil.forEachChild(node, this);
}
});
}
});
}
}