トップレベル関数の呼び出し比較ベンチマークを追加

Author: k163377

src/jmh/kotlin/com/mapk/fastkfunction/CallTopLevelFunBenchmark.kt

@@ -0,0 +1,41 @@
+package com.mapk.fastkfunction
+
+import com.mapk.fastkfunction.argumentbucket.ArgumentBucket
+import com.mapk.fastkfunction.benchmarktargets.Constructor5
+import com.mapk.fastkfunction.benchmarktargets.topLevelFun5
+import org.openjdk.jmh.annotations.Benchmark
+import org.openjdk.jmh.annotations.Scope
+import org.openjdk.jmh.annotations.State
+import java.lang.reflect.Method
+import kotlin.reflect.KFunction
+import kotlin.reflect.KParameter
+import kotlin.reflect.jvm.javaMethod
+
+@State(Scope.Benchmark)
+open class CallTopLevelFunBenchmark {
+    private val function: KFunction<Constructor5> = ::topLevelFun5
+    private val argumentMap: Map<KParameter, Any?> = function.parameters.associateWith { it.index + 1 }
+
+    private val javaMethod: Method = function.javaMethod!!
+    private val fastKFunction: FastKFunction<Constructor5> = FastKFunction(function, null)
+    private val argumentBucket: ArgumentBucket = fastKFunction.generateBucket()
+        .apply { (0 until 5).forEach { this[it] = it + 1 } }
+
+    @Benchmark
+    fun normalCall(): Constructor5 = topLevelFun5(1, 2, 3, 4, 5)
+
+    @Benchmark
+    fun kFunctionCall(): Constructor5 = function.call(1, 2, 3, 4, 5)
+
+    @Benchmark
+    fun kFunctionCallBy(): Constructor5 = function.callBy(argumentMap)
+
+    @Benchmark
+    fun javaMethod(): Constructor5 = javaMethod.invoke(null, 1, 2, 3, 4, 5) as Constructor5
+
+    @Benchmark
+    fun fastKFunctionCall(): Constructor5 = fastKFunction.call(1, 2, 3, 4, 5)
+
+    @Benchmark
+    fun fastKFunctionCallBy(): Constructor5 = fastKFunction.callBy(argumentBucket)
+}