com.creativewidgetworks.goldparser.simple3.rulehandlers.Function Maven / Gradle / Ivy

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package com.creativewidgetworks.goldparser.simple3.rulehandlers;

import java.util.List;

import com.creativewidgetworks.goldparser.engine.Reduction;
import com.creativewidgetworks.goldparser.parser.GOLDParser;
import com.creativewidgetworks.goldparser.parser.ProcessRule;
import com.creativewidgetworks.goldparser.parser.Variable;

@ProcessRule(rule=" ::= function Id (  ) begin  end")

/**
 * Rule handler for the function declaration rule.
 *
 * function ID ( parameters;
    private final Reduction statements;

    public Function(GOLDParser parser) {
        Reduction reduction = parser.getCurrentReduction();

        functionName = reduction.get(1).getData().toString();
        parameters = (List)reduction.get(3).asReduction().getValue().asObject();
        statements = reduction.get(6).asReduction();

        // Clean up the parameter call stack
        parser.clearProgramVariable(Parameters.KEY_PARAMETERS);

        // Make the function available to be called
        parser.setProgramVariable(FUNCTION_PREFIX + functionName, new Variable(this));
    }

    public List getParameters() {
        return parameters;
    }

    public Reduction getStatements() {
        return statements;
    }

}