linter/src/main/java/org/apache/royale/linter/rules/NoTraceRule.java

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//  contributor license agreements.  See the NOTICE file distributed with
//  this work for additional information regarding copyright ownership.
//  The ASF licenses this file to You under the Apache License, Version 2.0
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//      http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.royale.linter.rules;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.apache.royale.compiler.problems.CompilerProblem;
import org.apache.royale.compiler.problems.ICompilerProblem;
import org.apache.royale.compiler.tree.ASTNodeID;
import org.apache.royale.compiler.tree.as.IASNode;
import org.apache.royale.compiler.tree.as.IFunctionCallNode;
import org.apache.royale.compiler.tree.as.IMemberAccessExpressionNode;
import org.apache.royale.linter.LinterRule;
import org.apache.royale.linter.NodeVisitor;
import org.apache.royale.linter.TokenQuery;
import org.apache.royale.linter.problems.ILinterProblem;

/**
 * Check for calls to the 'trace()' function.
 */
public class NoTraceRule extends LinterRule {
	@Override
	public Map<ASTNodeID, NodeVisitor> getNodeVisitors() {
		Map<ASTNodeID, NodeVisitor> result = new HashMap<>();
		result.put(ASTNodeID.FunctionCallID, (node, tokenQuery, problems) -> {
			checkFunctionCallNode((IFunctionCallNode) node, tokenQuery, problems);
		});
		return result;
	}

	private void checkFunctionCallNode(IFunctionCallNode functionCallNode, TokenQuery tokenQuery, Collection<ICompilerProblem> problems) {
		if (!"trace".equals(functionCallNode.getFunctionName())) {
			return;
		}
		IASNode parentNode = functionCallNode.getParent();
		if (parentNode instanceof IMemberAccessExpressionNode) {
			return;
		}
		problems.add(new NoTraceLinterProblem(functionCallNode));
	}

	public static class NoTraceLinterProblem extends CompilerProblem implements ILinterProblem {
		public static final String DESCRIPTION = "Must not call trace() function";

		public NoTraceLinterProblem(IFunctionCallNode node)
		{
			super(node);
		}
	}
}