lphy.base.function.Map Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of lphy-base Show documentation

The standard library of LPhy, which contains the required generative distributions and basic functions.

The newest version!

package lphy.base.function;

import lphy.core.model.DeterministicFunction;
import lphy.core.model.Value;
import lphy.core.model.annotation.GeneratorInfo;
import lphy.core.model.annotation.ParameterInfo;
//lphy.parser.functions.MapValue
//replaced by lphy.core.parser.function.MapFunction
@Deprecated
public class Map extends DeterministicFunction> {

    final String keysParamName;
    final String valuesParamName;

    public Map(@ParameterInfo(name = "keys", description = "the keys of the map as an array") Value keys,
               @ParameterInfo(name = "values", description = "the values of the map as an array") Value values) {
        keysParamName = getParamName(0);
        valuesParamName = getParamName(1);
        setParam(keysParamName, keys);
        setParam(valuesParamName, values);
    }

    @GeneratorInfo(name="map",description = "A map defined by parallel arrays of keys and values")
    public Value> apply() {
        Value keys = (Value)getParams().get(keysParamName);
        Value values = (Value)getParams().get(valuesParamName);

        K[] k = keys.value();
        V[] v = values.value();

        java.util.Map map = new java.util.HashMap<>();
        for (int i = 0; i < k.length; i++) {
            map.put(k[i], v[i]);
        }
        return new Value<>(null, map, this);
    }
}