ZendDbgVariables.java

/*******************************************************************************
 * Copyright (c) 2016 Rogue Wave Software, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Rogue Wave Software, Inc. - initial API and implementation
 *******************************************************************************/
package org.eclipse.che.plugin.zdb.server.variables;

import static org.eclipse.che.plugin.zdb.server.expressions.IDbgDataFacet.Facet.KIND_LOCAL;
import static org.eclipse.che.plugin.zdb.server.expressions.IDbgDataFacet.Facet.KIND_SUPER_GLOBAL;
import static org.eclipse.che.plugin.zdb.server.expressions.IDbgDataFacet.Facet.KIND_THIS;

import java.util.Collections;

import org.eclipse.che.plugin.zdb.server.expressions.ZendDbgExpression;
import org.eclipse.che.plugin.zdb.server.expressions.ZendDbgExpressionEvaluator;
import org.eclipse.che.plugin.zdb.server.utils.ZendDbgVariableUtils;

/**
 * Expression for fetching current stack frame variables.
 *
 * @author Bartlomiej Laczkowski
 */
public class ZendDbgVariables extends ZendDbgExpression {

    private final static String DUMP_VARIABLES_EXPRESSION = "eval('if (isset($this)) {$this;}; return get_defined_vars();')";
    private static final String SIGIL = "$";

    public ZendDbgVariables(ZendDbgExpressionEvaluator expressionEvaluator) {
        super(expressionEvaluator, DUMP_VARIABLES_EXPRESSION, Collections.emptyList());
    }

    @Override
    protected ZendDbgExpression createChild(String variableName, Facet... facets) {
        variableName = SIGIL + variableName;
        Facet facet = KIND_LOCAL;
        if (ZendDbgVariableUtils.isThis(variableName))
            facet = KIND_THIS;
        else if (ZendDbgVariableUtils.isSuperGlobal(variableName))
            facet = KIND_SUPER_GLOBAL;
        return new ZendDbgExpression(getExpressionEvaluator(), variableName, Collections.singletonList(variableName),
                facet);
    }

}