raw.runtime.truffle.ast.controlflow.ExpBlockNode Maven / Gradle / Ivy

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/*
 * Copyright 2023 RAW Labs S.A.
 *
 * Use of this software is governed by the Business Source License
 * included in the file licenses/BSL.txt.
 *
 * As of the Change Date specified in that file, in accordance with
 * the Business Source License, use of this software will be governed
 * by the Apache License, Version 2.0, included in the file
 * licenses/APL.txt.
 */

package raw.runtime.truffle.ast.controlflow;

import com.oracle.truffle.api.CompilerAsserts;
import com.oracle.truffle.api.frame.VirtualFrame;
import com.oracle.truffle.api.nodes.BlockNode;
import raw.runtime.truffle.ExpressionNode;
import raw.runtime.truffle.StatementNode;

public final class ExpBlockNode extends ExpressionNode
    implements BlockNode.ElementExecutor {

  @Child private BlockNode block;

  @Child private ExpressionNode expNode;

  public ExpBlockNode(StatementNode[] stmtNodes, ExpressionNode expNode) {
    this.block = BlockNode.create(stmtNodes, this);
    this.expNode = expNode;
  }

  @Override
  public Object executeGeneric(VirtualFrame virtualFrame) {
    // This assertion illustrates that the array length is really a constant during compilation.
    CompilerAsserts.compilationConstant(block.getElements().length);

    this.block.executeVoid(virtualFrame, BlockNode.NO_ARGUMENT);

    return expNode.executeGeneric(virtualFrame);
  }

  @Override
  public void executeVoid(VirtualFrame frame, StatementNode node, int index, int argument) {
    node.executeVoid(frame);
  }
}