raw.runtime.truffle.ast.expressions.option.OptionFlatMapNode 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.expressions.option;
import com.oracle.truffle.api.dsl.NodeChild;
import com.oracle.truffle.api.dsl.Specialization;
import com.oracle.truffle.api.library.CachedLibrary;
import com.oracle.truffle.api.nodes.NodeInfo;
import raw.runtime.truffle.ExpressionNode;
import raw.runtime.truffle.runtime.function.Closure;
import raw.runtime.truffle.runtime.option.OptionLibrary;
@NodeInfo(shortName = "Option.FlatMap")
@NodeChild("option")
@NodeChild("function")
public abstract class OptionFlatMapNode extends ExpressionNode {
@Specialization(
guards = {"options.isOption(option)"},
limit = "1")
protected Object optionFlatMap(
Object option, Closure closure, @CachedLibrary("option") OptionLibrary options) {
if (options.isDefined(option)) {
Object v = options.get(option);
Object[] argumentValues = new Object[1];
argumentValues[0] = v;
return closure.call(argumentValues);
} else {
return option;
}
}
}