Add benchmark with case with a lot of implicit receivers

2020-03-02 14:40:51 +03:00
parent 7ee125e1ad
commit a332a5f26d
1 changed files with 50 additions and 0 deletions
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.benchmarks
+
+import org.openjdk.jmh.annotations.*
+import org.openjdk.jmh.infra.Blackhole
+import java.util.concurrent.TimeUnit
+
+@BenchmarkMode(Mode.AverageTime)
+@OutputTimeUnit(TimeUnit.MILLISECONDS)
+@State(Scope.Benchmark)
+open class ManyImplicitReceiversBenchmark : AbstractSimpleFileBenchmark() {
+    @Param("1", "10", "50")
+    private var size: Int = 0
+
+    @Benchmark
+    fun benchmark(bh: Blackhole) {
+        analyzeGreenFile(bh)
+    }
+
+    override fun buildText(): String {
+        return buildString {
+            appendln("inline fun <T, R> with(receiver: T, block: T.() -> R): R = block()")
+
+            for (i in 1..size) {
+                appendln("interface A$i {")
+                appendln("    fun foo$i()")
+                appendln("}")
+                appendln()
+            }
+            appendln()
+            append("fun test(")
+            append((1..size).joinToString(", ") { "a$it: A$it" })
+            appendln(" {")
+            for (i in 1..size) {
+                appendln("with(a$i) {")
+            }
+            for (i in 1..size) {
+                appendln("foo$i()")
+            }
+            for (i in 1..size) {
+                appendln("}")
+            }
+            appendln("}")
+        }
+    }
+}