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| object FindCollectionReturningHofs extends App { | |
| import scala.tools.nsc._ | |
| val global = new Global(new Settings) | |
| import global._ | |
| import global.settings | |
| settings.usejavacp.value = true | |
| settings.embeddedDefaults(getClass.getClassLoader) |
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| +++ MANIFEST.MF | |
| Manifest-Version: 1.0 | |
| Automatic-Module-Name: scala.tools.nsc | |
| Bundle-ManifestVersion: 2 | |
| Bundle-Name: Scala Compiler | |
| Bundle-RequiredExecutionEnvironment: JavaSE-1.8 | |
| Bundle-SymbolicName: org.scala-lang.scala-compiler | |
| Bundle-Version: 2.12.15.v20210703-050957-52d9dbd | |
| Class-Path: scala-reflect.jar scala-library.jar |
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| [ | |
| { | |
| "jmhVersion" : "1.29", | |
| "benchmark" : "org.sample.Jdk11PerfRegressionBenchmark.setPhase", | |
| "mode" : "avgt", | |
| "threads" : 1, | |
| "forks" : 2, | |
| "jvm" : "/Users/jz/.jabba/jdk/[email protected]/Contents/Home/bin/java", | |
| "jvmArgs" : [ | |
| ], |
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| after boxUnbox | |
| // access flags 0x1000001 | |
| public crash()V | |
| L0 | |
| LINENUMBER 5 L0 | |
| L1 | |
| LINENUMBER 6 L1 | |
| ICONST_0 | |
| ISTORE 2 |
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| L0 | |
| LINENUMBER 5 L0 | |
| L1 | |
| LINENUMBER 6 L1 | |
| ACONST_NULL | |
| ASTORE 3 | |
| L2 | |
| ACONST_NULL | |
| ASTORE 5 | |
| GOTO L3 |
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| L0 | |
| LINENUMBER 5 L0 | |
| L1 | |
| LINENUMBER 6 L1 | |
| ACONST_NULL | |
| ASTORE 3 | |
| L2 | |
| NEW scala/runtime/ObjectRef | |
| DUP | |
| ALOAD 3 |
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| https://gist.github.com/d1af6aaaa9cbeb618f0f82593a58ca62 |
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| package p1 | |
| class Test { | |
| def crash: Unit = { | |
| var box: AnyRef = null | |
| def writeBox(a: AnyRef): Unit = { | |
| box = a | |
| } |
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| <?xml version='1.0' encoding='UTF-8'?> | |
| <project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"> | |
| <modelVersion>4.0.0</modelVersion> | |
| <groupId>org.scala-lang</groupId> | |
| <artifactId>scala-partest</artifactId> | |
| <packaging>jar</packaging> | |
| <description>Scala Compiler Testing Tool</description> | |
| <url>https://www.scala-lang.org/</url> | |
| <version>2.12.13-bin-SNAPSHOT</version> | |
| <licenses> |
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| [error] Options accepted by async: | |
| [error] allkernel=<bool> Only include kernel-mode events. | |
| [error] alluser=<bool> Only include user-mode events. | |
| [error] ann=<bool> Annotate Java method names. | |
| [error] cstack=<mode> How to traverse C stack: Supported: [fp, lbr, no]. | |
| [error] dir=<dir> Output directory. | |
| [error] direction=<direction> Direction(s) of flame graph. Supported: [forward, | |
| [error] reverse, both]. (default: [both]) | |
| [error] event=<event> Event to sample: cpu, alloc, wall, lock, cache-misses, | |
| [error] etc. (default: [cpu]) |