Writing Your First Kotlin Compiler Plugin

The Kotlin compiler plugin API gives us powerful features like Parcelize and the synthetic view accessor methods in kotlinx.android. These features could not be built using similar, but more limited, mechanisms, such as annotation processing.

The Kotlin compiler plugin API is not currently well-documented, but that doesn't mean that it can't be explored! In this talk, we will start from scratch and show how we can build a compiler plugin and deploy an artifact to a public location, so that we can build plugins that can be applied as easily as the official compiler plugins.

This version was presented at KotlinConf 2018: https://kotlinconf.com/schedule/#date=4-october&session=41262

Transcript

1. Writing Your First Kotlin Compiler Plugin Kevin Most
2. A brief intro
3. Are these basically annotation processors?
4. Are these basically annotation processors? • Annotation Processors:
5. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time
6. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API
7. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code
8. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code
9. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported
10. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins:
11. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins: • Your code runs at compile-time
12. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins: • Your code runs at compile-time • Private, undocumented API
13. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins: • Your code runs at compile-time • Private, undocumented API • Emit Java bytecode (or LLVM IR)
14. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins: • Your code runs at compile-time • Private, undocumented API • Emit Java bytecode (or LLVM IR) • Works on Kotlin source code only
15. Are these basically annotation processors? • Annotation Processors: • Your code runs at compile-time • Public, documented API • Emit Java source code • Works on Kotlin/Java source code • Multiplatform not supported • Compiler Plugins: • Your code runs at compile-time • Private, undocumented API • Emit Java bytecode (or LLVM IR) • Works on Kotlin source code only • Multiplatform supported
16. Why write compiler plugins?
17. Why write compiler plugins? • Incredibly powerful API; you can modify function/class internals
18. Why write compiler plugins? • Incredibly powerful API; you can modify function/class internals • Enables you to solve new classes of metaprogramming problems
19. Why write compiler plugins? • Incredibly powerful API; you can modify function/class internals • Enables you to solve new classes of metaprogramming problems • Annotation processors are JVM-only, while compiler plugins aren't
20. Why NOT write compiler plugins?
21. Why NOT write compiler plugins? • Annotation processors are much easier to write (if you only care about JVM)
22. Why NOT write compiler plugins? • Annotation processors are much easier to write (if you only care about JVM) • Compiler plugins are a lot of work. You need to write:
23. Why NOT write compiler plugins? • Annotation processors are much easier to write (if you only care about JVM) • Compiler plugins are a lot of work. You need to write: • An IntelliJ plugin (if creating synthetic members)
24. Why NOT write compiler plugins? • Annotation processors are much easier to write (if you only care about JVM) • Compiler plugins are a lot of work. You need to write: • An IntelliJ plugin (if creating synthetic members) • A Gradle (or Maven, or other build tool) plugin
25. Why NOT write compiler plugins? • Annotation processors are much easier to write (if you only care about JVM) • Compiler plugins are a lot of work. You need to write: • An IntelliJ plugin (if creating synthetic members) • A Gradle (or Maven, or other build tool) plugin • Slightly different extensions for JVM, JS, and Native targets
26. Examples of compiler plugins
27. Examples of compiler plugins • allopen: Modifies annotated class to be open
28. Examples of compiler plugins • allopen: Modifies annotated class to be open • noarg: Modifies annotated class to have a zero-argument constructor
29. Examples of compiler plugins • allopen: Modifies annotated class to be open • noarg: Modifies annotated class to have a zero-argument constructor • android-extensions: findViewById(R.id.foo) aliased, and automatic Parcelable impl generation via @Parcelize
30. Examples of compiler plugins • allopen: Modifies annotated class to be open • noarg: Modifies annotated class to have a zero-argument constructor • android-extensions: findViewById(R.id.foo) aliased, and automatic Parcelable impl generation via @Parcelize • kotlin-serialization: Automatic generation of Serializable impl
31. Examples of compiler plugins • allopen: Modifies annotated class to be open • noarg: Modifies annotated class to have a zero-argument constructor • android-extensions: findViewById(R.id.foo) aliased, and automatic Parcelable impl generation via @Parcelize • kotlin-serialization: Automatic generation of Serializable impl • First multiplatform-ready plugin (generates LLVM IR for native too)
32. Examples of compiler plugins
33. • All existing compiler plugins are 1st party (github.com/JetBrains/kotlin) Examples of compiler plugins
34. • All existing compiler plugins are 1st party (github.com/JetBrains/kotlin) • plugins/{name}/ ... for the actual plugin business logic Examples of compiler plugins
35. • All existing compiler plugins are 1st party (github.com/JetBrains/kotlin) • plugins/{name}/ ... for the actual plugin business logic • libraries/tools/kotlin-{name}/ ... for the Gradle wrappers Examples of compiler plugins
36. • All existing compiler plugins are 1st party (github.com/JetBrains/kotlin) • plugins/{name}/ ... for the actual plugin business logic • libraries/tools/kotlin-{name}/ ... for the Gradle wrappers • libraries/tools/kotlin-maven-{name}/ ... for the Maven wrappers Examples of compiler plugins
37. Plugin Architecture s Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
38. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
39. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
40. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Gradle API (totally unrelated to Kotlin)
41. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Gradle API (totally unrelated to Kotlin) • Provides an entry point from a build.gradle script
42. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Gradle API (totally unrelated to Kotlin) • Provides an entry point from a build.gradle script • Allows configuration via Gradle extensions
43. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
44. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • The interface between the Gradle and Kotlin APIs
45. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • The interface between the Gradle and Kotlin APIs • Read Gradle extension options
46. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • The interface between the Gradle and Kotlin APIs • Read Gradle extension options • Write out Kotlin SubpluginOptions
47. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • The interface between the Gradle and Kotlin APIs • Read Gradle extension options • Write out Kotlin SubpluginOptions • Define the compiler plugin's ID (internal unique key)
48. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • The interface between the Gradle and Kotlin APIs • Read Gradle extension options • Write out Kotlin SubpluginOptions • Define the compiler plugin's ID (internal unique key) • Define the Kotlin plugin's Maven coordinates so the compiler can download it
49. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
50. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Reads kotlinc -Xplugin args
51. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Reads kotlinc -Xplugin args • Subplugin options actually get passed through this pipeline
52. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Reads kotlinc -Xplugin args • Subplugin options actually get passed through this pipeline • Write CompilerConfigurationKeys
53. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
54. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Read CompilerConfigurationKeys
55. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Read CompilerConfigurationKeys • Register Extensions
56. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
57. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!)
58. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as:
59. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as: • ExpressionCodegenExtension
60. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as: • ExpressionCodegenExtension • ClassBuilderInterceptorExtension
61. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as: • ExpressionCodegenExtension • ClassBuilderInterceptorExtension • StorageComponentContainerContributor
62. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as: • ExpressionCodegenExtension • ClassBuilderInterceptorExtension • StorageComponentContainerContributor • IrGenerationExtension ( !!)
63. Plugin Architecture Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension • Generates code (finally!) • Multiple types of extensions, such as: • ExpressionCodegenExtension • ClassBuilderInterceptorExtension • StorageComponentContainerContributor • IrGenerationExtension ( !!) • Write bytecode (or LLVM IR!!)
64. Let's build our own!
65. Let's build our own!
66. Let's build our own! • We'll build a compiler plugin that traces method calls
67. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging
68. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging • Could not be an annotation processor; modifies the function body
69. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging • Could not be an annotation processor; modifies the function body • Prior art:
70. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging • Could not be an annotation processor; modifies the function body • Prior art: • Hugo: github.com/jakewharton/hugo
71. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging • Could not be an annotation processor; modifies the function body • Prior art: • Hugo: github.com/jakewharton/hugo • Firebase Performance Monitoring: firebase.google.com/docs/perf-mon
72. Let's build our own! • We'll build a compiler plugin that traces method calls • A method annotated with a debug-log annotation will have its method body modified to include logging • Could not be an annotation processor; modifies the function body • Prior art: • Hugo: github.com/jakewharton/hugo • Firebase Performance Monitoring: firebase.google.com/docs/perf-mon • Both use AspectJ bytecode weaving + Android Gradle Transform API
73. fun prime(n: Int): Long { println("⇢ prime(n=$n)") val startTime = System.currentTimeMillis() val result = primeNumberSequence.take(n).last() val timeToRun = System.currentTimeMillis() - startTime println("⇠ prime [ran in $timeToRun ms]") return result } The goal
74. fun prime(n: Int): Long { println("⇢ prime(n=$n)") val startTime = System.currentTimeMillis() val result = primeNumberSequence.take(n).last() val timeToRun = System.currentTimeMillis() - startTime println("⇠ prime [ran in $timeToRun ms]") return result } The goal
75. @DebugLog fun prime(n: Int): Long = primeNumberSequence.take(n).last() fun prime(n: Int): Long { println("⇢ prime(n=$n)") val startTime = System.currentTimeMillis() val result = primeNumberSequence.take(n).last() val timeToRun = System.currentTimeMillis() - startTime println("⇠ prime [ran in $timeToRun ms]") return result } The goal
76. Let's build our own!
77. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
78. gradle-plugin/build.gradle apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" implementationClass = "debuglog.DebugLogGradlePlugin" } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
79. apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" implementationClass = "debuglog.DebugLogGradlePlugin" } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" } gradle-plugin/build.gradle
80. apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" // `apply plugin: "debuglog.plugin"` implementationClass = "debuglog.DebugLogGradlePlugin" } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" } gradle-plugin/build.gradle
81. apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" // `apply plugin: "debuglog.plugin"` implementationClass = "debuglog.DebugLogGradlePlugin" // entry-point class } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" } gradle-plugin/build.gradle
82. gradle-plugin/build.gradle apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" // `apply plugin: "debuglog.plugin"` implementationClass = "debuglog.DebugLogGradlePlugin" // entry-point class } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
83. gradle-plugin/build.gradle apply plugin: "java-gradle-plugin" apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" gradlePlugin { plugins { simplePlugin { id = "debuglog.plugin" // `apply plugin: "debuglog.plugin"` implementationClass = "debuglog.DebugLogGradlePlugin" // entry-point class } } } dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" implementation "org.jetbrains.kotlin:kotlin-gradle-plugin-api:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
84. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
85. class DebugLogGradlePlugin : org.gradle.api.Plugin<Project> { override fun apply(project: Project) { project.extensions.create( "debugLog", DebugLogGradleExtension ::class.java ) } } open class DebugLogGradleExtension { var enabled: Boolean = true var annotations: List<String> = emptyList() }
86. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
87. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = TODO() override fun getCompilerPluginId(): String = TODO() override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
88. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = TODO() override fun getCompilerPluginId(): String = TODO() override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
89. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = TODO() override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
90. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = TODO() override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
91. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = TODO() override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
92. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
93. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
94. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = TODO() override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() }2 }1
95. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = SubpluginArtifact( groupId = "debuglog", artifactId = "kotlin-plugin", version = "0.0.1" ) override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() }2 }1
96. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin : KotlinGradleSubplugin<AbstractCompile> { override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = SubpluginArtifact( groupId = "debuglog", artifactId = "kotlin-plugin", version = "0.0.1" ) override fun apply(project: Project, /* ... */): List<SubpluginOption> { TODO() } }
97. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 override fun isApplicable( project: Project, task: AbstractCompile ): Boolean = project.plugins.hasPlugin(DebugLogGradlePlugin ::class.java) override fun getCompilerPluginId(): String = "debuglog" override fun getPluginArtifact(): SubpluginArtifact = SubpluginArtifact( groupId = "debuglog", artifactId = "kotlin-plugin", version = "0.0.1" ) override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ TODO() }2 }1
98. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 // other method impls override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ TODO()Z }2 }1
99. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 // other method impls override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ val extension = project.extensions.findByType<DebugLogGradleExtension>() ?: DebugLogGradleExtension() if (extension.enabled && extension.annotations.isEmpty()) error("DebugLog is enabled, but no annotations were set") val annotationOptions = extension.annotations .map { SubpluginOption(key = "debugLogAnnotation", value = it) } val enabledOption = SubpluginOption( key = "enabled", value = extension.enabled.toString()) return annotationOptions + enabledOption }2 }1
100. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 // other method impls override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ val extension = project.extensions.findByType<DebugLogGradleExtension>() ?: DebugLogGradleExtension() if (extension.enabled && extension.annotations.isEmpty()) error("DebugLog is enabled, but no annotations were set") val annotationOptions = extension.annotations .map { SubpluginOption(key = "debugLogAnnotation", value = it) } val enabledOption = SubpluginOption( key = "enabled", value = extension.enabled.toString()) return annotationOptions + enabledOption }2 }1
101. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 // other method impls override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ val extension = project.extensions.findByType<DebugLogGradleExtension>() ?: DebugLogGradleExtension() if (extension.enabled && extension.annotations.isEmpty()) error("DebugLog is enabled, but no annotations were set") val annotationOptions = extension.annotations .map { SubpluginOption(key = "debugLogAnnotation", value = it) } val enabledOption = SubpluginOption( key = "enabled", value = extension.enabled.toString()) return annotationOptions + enabledOption }2 }1
102. @AutoService(KotlinGradleSubplugin ::class) // don't forget! class DebugLogGradleSubplugin1:1KotlinGradleSubplugin<AbstractCompile>1{1 // other method impls override fun apply(project: Project, /* ... */): List<SubpluginOption>1{ val extension = project.extensions.findByType<DebugLogGradleExtension>() ?: DebugLogGradleExtension() if (extension.enabled && extension.annotations.isEmpty()) error("DebugLog is enabled, but no annotations were set") val annotationOptions = extension.annotations .map { SubpluginOption(key = "debugLogAnnotation", value = it) } val enabledOption = SubpluginOption( key = "enabled", value = extension.enabled.toString()) return annotationOptions + enabledOption }2 }1
103. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
104. kotlin-plugin/build.gradle apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" compileOnly "org.jetbrains.kotlin:kotlin-compiler-embeddable:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
105. kotlin-plugin/build.gradle apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" compileOnly "org.jetbrains.kotlin:kotlin-compiler-embeddable:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
106. kotlin-plugin/build.gradle apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" compileOnly "org.jetbrains.kotlin:kotlin-compiler-embeddable:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
107. kotlin-plugin/build.gradle apply plugin: "org.jetbrains.kotlin.jvm" apply plugin: "kotlin-kapt" dependencies { implementation "org.jetbrains.kotlin:kotlin-stdlib:$ktVersion" compileOnly "org.jetbrains.kotlin:kotlin-compiler-embeddable:$ktVersion" compileOnly "com.google.auto.service:auto-service:1.0-rc4" kapt "com.google.auto.service:auto-service:1.0-rc4" }
108. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
109. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = TODO() override val pluginOptions: Collection<CliOption> = listOf( ) override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
110. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = TODO() override val pluginOptions: Collection<CliOption> = listOf( ) override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
111. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( ) override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
112. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( ) override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
113. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( )P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() }2 }1
114. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() }2 }1
115. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
116. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) { TODO() } }
117. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) = when (option.name) { } }
118. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) = when (option.name) { "enabled" -> configuration.put(KEY_ENABLED, value.toBoolean()) }2 }1
119. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) = when (option.name) { "enabled" -> configuration.put(KEY_ENABLED, value.toBoolean()) "debugLogAnnotation" -> configuration.appendList(KEY_ANNOTATIONS, value) }2 }1
120. @AutoService(CommandLineProcessor ::class) class DebugLogCommandLineProcessor : CommandLineProcessor { override val pluginId: String = "debuglog" // same as ID from subplugin override val pluginOptions: Collection<CliOption> = listOf( CliOption("enabled", "<true|false>", "whether plugin is enabled"), CliOption( "debugLogAnnotation", "<fqname>", "debug-log annotation names", required = true, allowMultipleOccurrences = true))P override fun processOption( option: CliOption, value: String, configuration: CompilerConfiguration ) = when (option.name) { "enabled" -> configuration.put(KEY_ENABLED, value.toBoolean()) "debugLogAnnotation" -> configuration.appendList(KEY_ANNOTATIONS, value) else -> error("Unexpected config option ${option.name}") }2
121. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
122. @AutoService(ComponentRegistrar ::class) class DebugLogComponentRegistrar : ComponentRegistrar { override fun registerProjectComponents( project: MockProject, configuration: CompilerConfiguration ) { if (configuration[KEY_ENABLED] == false) { return } ClassBuilderInterceptorExtension.registerExtension( project, DebugLogClassGenerationInterceptor( debugLogAnnotations = configuration[KEY_ANNOTATIONS] ?: error("debuglog plugin requires at least one annotation class option passed to it") ) ) } }
123. @AutoService(ComponentRegistrar ::class) class DebugLogComponentRegistrar : ComponentRegistrar { override fun registerProjectComponents( project: MockProject, configuration: CompilerConfiguration ) { if (configuration[KEY_ENABLED] == false) { return } ClassBuilderInterceptorExtension.registerExtension( project, DebugLogClassGenerationInterceptor( debugLogAnnotations = configuration[KEY_ANNOTATIONS] ?: error("debuglog plugin requires at least one annotation class option passed to it") ) ) } }
124. Plugin Subplugin CommandLineProcessor ComponentRegistrar Extension Extension
125. class DebugLogClassGenerationInterceptor( val debugLogAnnotations: List<String> ) : ClassBuilderInterceptorExtension { override fun interceptClassBuilderFactory( interceptedFactory: ClassBuilderFactory, bindingContext: BindingContext, diagnostics: DiagnosticSink ): ClassBuilderFactory = TODO() } kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassGenerationInterceptor.kt
126. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassGenerationInterceptor.kt class DebugLogClassGenerationInterceptor( val debugLogAnnotations: List<String> ) : ClassBuilderInterceptorExtension { override fun interceptClassBuilderFactory( interceptedFactory: ClassBuilderFactory, bindingContext: BindingContext, diagnostics: DiagnosticSink ): ClassBuilderFactory = object: ClassBuilderFactory by interceptedFactory }1
127. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassGenerationInterceptor.kt class DebugLogClassGenerationInterceptor( val debugLogAnnotations: List<String> ) : ClassBuilderInterceptorExtension { override fun interceptClassBuilderFactory( interceptedFactory: ClassBuilderFactory, bindingContext: BindingContext, diagnostics: DiagnosticSink ): ClassBuilderFactory = object: ClassBuilderFactory by interceptedFactory { override fun newClassBuilder(origin: JvmDeclarationOrigin) = DebugLogClassBuilder( annotations = debugLogAnnotations, delegateBuilder = interceptedFactory.newClassBuilder(origin)) } }1
128. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt private class DebugLogClassBuilder( val annotations: List<String>, delegateBuilder: ClassBuilder ) : DelegatingClassBuilder(delegateBuilder) { override fun newMethod( origin: JvmDeclarationOrigin, access: Int, name: String, desc: String, signature: String?, exceptions: Array<out String>? ): MethodVisitor { }1 }2
129. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt private class DebugLogClassBuilder( val annotations: List<String>, delegateBuilder: ClassBuilder ) : DelegatingClassBuilder(delegateBuilder) { override fun newMethod( origin: JvmDeclarationOrigin, ... ): MethodVisitor { }1 }2
130. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt private class DebugLogClassBuilder( val annotations: List<String>, delegateBuilder: ClassBuilder ) : DelegatingClassBuilder(delegateBuilder) { override fun newMethod( origin: JvmDeclarationOrigin, ... ): MethodVisitor { val original = super.newMethod(origin, ...) val function = origin.descriptor as? FunctionDescriptor ?: return original if (annotations.none { descriptor.annotations.hasAnnotation(it) }) { return original } }1 }2
131. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt private class DebugLogClassBuilder( val annotations: List<String>, delegateBuilder: ClassBuilder ) : DelegatingClassBuilder(delegateBuilder) { override fun newMethod( origin: JvmDeclarationOrigin, ... ): MethodVisitor { val original = super.newMethod(origin, ...) val function = origin.descriptor as? FunctionDescriptor ?: return original if (annotations.none { descriptor.annotations.hasAnnotation(it) }) { return original } return object : MethodVisitor(Opcodes.ASM5, original) { }3 }1 }2
132. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { }3
133. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).apply { TODO("on method entry") } }4 }3
134. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).apply { TODO("on method entry") } }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN /* void */, ARETURN /* object */, IRETURN /* int */ -> { InstructionAdapter(this).apply { TODO("on method exit") } } } super.visitInsn(opcode) } }3
135. What now?
136. What now? • You write bytecode
137. What now? • You write bytecode • Uses the ObjectWeb ASM API
138. What now? • You write bytecode • Uses the ObjectWeb ASM API • Neither related to ASM (assembly) or Web ASM (wasm) in any way
139. What now? • You write bytecode • Uses the ObjectWeb ASM API • Neither related to ASM (assembly) or Web ASM (wasm) in any way • An API for modifying JVM bytecode
140. What now? • You write bytecode • Uses the ObjectWeb ASM API • Neither related to ASM (assembly) or Web ASM (wasm) in any way • An API for modifying JVM bytecode • The JVM is a stack machine
141. What now? • You write bytecode • Uses the ObjectWeb ASM API • Neither related to ASM (assembly) or Web ASM (wasm) in any way • An API for modifying JVM bytecode • The JVM is a stack machine • One stack that methods operate upon
142. What now? • You write bytecode • Uses the ObjectWeb ASM API • Neither related to ASM (assembly) or Web ASM (wasm) in any way • An API for modifying JVM bytecode • The JVM is a stack machine • One stack that methods operate upon • You can also read arbitrary variables from the Local Variable Array
143. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") }
144. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
145. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
146. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
147. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V return value of v1()
148. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V return value of v1()
149. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V return value of v1() return value of v2()
150. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V return value of v1() return value of v2()
151. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
152. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V v1() + v2()
153. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V v1() + v2()
154. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
155. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
156. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
157. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
158. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
159. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
160. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder StringBuilder
161. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder StringBuilder
162. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
163. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
164. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder "sum of values was "
165. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder "sum of values was "
166. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
167. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
168. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
169. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
170. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder v1() + v2()
171. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder v1() + v2()
172. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
173. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
174. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
175. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream StringBuilder
176. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream
177. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream String
178. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V stdout PrintStream String
179. What does bytecode look like? fun printSimpleSum() { val sum = v1() + v2() println("sum of values was $sum") } INVOKESTATIC myapp/RunnerKt.v1 ()I INVOKESTATIC myapp/RunnerKt.v2 ()I IADD ISTORE 1 GETSTATIC j/l/System.out : Lj/io/PrintStream; NEW j/l/StringBuilder DUP INVOKESPECIAL j/l/StringBuilder.<init> ()V LDC "sum of values was " INVOKEVIRTUAL j/l/StringBuilder.append (Lj/l/String;)Lj/l/StringBuilder; ILOAD 1 INVOKEVIRTUAL j/l/StringBuilder.append (I)Lj/l/StringBuilder; INVOKEVIRTUAL j/l/StringBuilder.toString ()Lj/l/String; INVOKEVIRTUAL j/io/PrintStream.println (Lj/l/String;)V
180. @DebugLog fun prime(n: Int): Long = primeNumberSequence.take(n).last() fun prime(n: Int): Long { println("⇢ prime(n=$n)") val startTime = System.currentTimeMillis() val result = primeNumberSequence.take(n).last() val timeToRun = System.currentTimeMillis() - startTime println("⇠ prime [ran in $timeToRun ms]") return result } Remember the goal
181. Back to our MethodVisitor!
182. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).apply { TODO("on method entry") } }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).apply { TODO("on method exit") } } } super.visitInsn(opcode) } }3
183. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).apply { TODO("on method entry") } } override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).apply { TODO("on method exit") } } } super.visitInsn(opcode) } }
184. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { TODO("on method entry") }1
185. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") }1
186. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") }1 stdout PrintStream
187. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") }1 stdout PrintStream
188. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") }1 stdout PrintStream StringBuilder
189. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() }1 stdout PrintStream StringBuilder
190. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() }1 stdout PrintStream StringBuilder StringBuilder
191. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") }1 stdout PrintStream StringBuilder StringBuilder
192. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") }1 stdout PrintStream StringBuilder
193. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") }1 stdout PrintStream StringBuilder
194. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") }1 stdout PrintStream StringBuilder "⇢ prime("
195. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") }1 stdout PrintStream StringBuilder "⇢ prime("
196. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") }1 stdout PrintStream
197. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") }1 stdout PrintStream
198. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") }1 stdout PrintStream StringBuilder
199. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") }1 stdout PrintStream StringBuilder
200. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder
201. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder
202. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder " n="
203. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder " n="
204. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream
205. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream
206. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder
207. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder
208. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder value of n
209. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder value of n
210. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream
211. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream
212. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") } }1 stdout PrintStream StringBuilder
213. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R }1 stdout PrintStream StringBuilder
214. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }1 stdout PrintStream StringBuilder
215. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }1 stdout PrintStream
216. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }1 stdout PrintStream String
217. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }1 stdout PrintStream String
218. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply { getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }1
219. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L getstatic("j/l/System", "out", "Ljava/io/PrintStream;") anew("j/l/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇢ ${function.name}(") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/StringBuilder;") function.valueParameters.forEachIndexed { i, param -> visitLdcInsn(" ${param.name}=") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") visitVarInsn(ALOAD, i + 1) invokevirtual("j/l/StringBuilder", "append", "(Lj/l/Object;)Lj/l/SB;") }R invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }1
220. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L // ... method-trace-printing code }1
221. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L // ... method-trace-printing code invokestatic("j/l/System", "currentTimeMillis", "()J") }1
222. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L // ... method-trace-printing code invokestatic("j/l/System", "currentTimeMillis", "()J") }1 currentTimeMillis
223. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L // ... method-trace-printing code invokestatic("j/l/System", "currentTimeMillis", "()J") store(9001, LONG_TYPE) }1 currentTimeMillis
224. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).apply {L // ... method-trace-printing code invokestatic("j/l/System", "currentTimeMillis", "()J") store(9001, LONG_TYPE) }1
225. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyL{L // ... method-trace-printing code invokestatic("j/l/System", "currentTimeMillis", "()J") store(9001, LONG_TYPE) }1
226. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyL{L // ... method-trace-printing code // ... timestamp-storing code }W
227. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).applyL{L // ... method-trace-printing code // ... timestamp-storing code }W }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).apply { TODO("on method exit") } } } super.visitInsn(opcode) } }3
228. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).applyL{L // ... method-trace-printing code // ... timestamp-storing code }W }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).apply { TODO("on method exit") } } } super.visitInsn(opcode) } }3
229. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).apply { // ... method-trace-printing code // ... timestamp-storing code }W }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).applyM{MTODO("on method exit")M}M } } super.visitInsn(opcode) } }3
230. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M TODO("on method exit") }M
231. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") }M
232. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") }M stdout PrintStream
233. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") }M stdout PrintStream
234. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") }M stdout PrintStream StringBuilder
235. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() }M stdout PrintStream StringBuilder
236. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() }M stdout PrintStream StringBuilder StringBuilder
237. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") }M stdout PrintStream StringBuilder StringBuilder
238. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") }M stdout PrintStream StringBuilder
239. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") }M stdout PrintStream StringBuilder
240. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") }M stdout PrintStream StringBuilder "⇠ prime [ran in "
241. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") }M stdout PrintStream StringBuilder "⇠ prime [ran in "
242. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") }M stdout PrintStream
243. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") }M stdout PrintStream
244. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") }M stdout PrintStream StringBuilder
245. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") }M stdout PrintStream StringBuilder
246. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") }M stdout PrintStream StringBuilder current timestamp
247. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) }M stdout PrintStream StringBuilder current timestamp
248. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) }M stdout PrintStream StringBuilder current timestamp start timestamp
249. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) }M stdout PrintStream StringBuilder current timestamp start timestamp
250. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) }M stdout PrintStream StringBuilder
251. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) }M stdout PrintStream StringBuilder
252. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) }M stdout PrintStream StringBuilder (current - start) time
253. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") }M stdout PrintStream StringBuilder (current - start) time
254. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") }M stdout PrintStream
255. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") }M stdout PrintStream
256. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") }M stdout PrintStream StringBuilder
257. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") }M stdout PrintStream StringBuilder
258. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") }M stdout PrintStream StringBuilder " ms]"
259. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") }M stdout PrintStream StringBuilder " ms]"
260. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") }M stdout PrintStream
261. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") }M stdout PrintStream
262. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") }M stdout PrintStream StringBuilder
263. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }M stdout PrintStream StringBuilder
264. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }M stdout PrintStream
265. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") }M stdout PrintStream String
266. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }M stdout PrintStream String
267. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }M
268. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M getstatic("j/l/System", "out", "Lj/io/PrintStream;") anew("java/lang/StringBuilder") dup() invokespecial("j/l/StringBuilder", "<init>", "()V") visitLdcInsn("⇠ ${function.name} [ran in ") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/StringBuilder;") invokestatic("j/l/System", "currentTimeMillis", "()J") load(9001, LONG_TYPE) sub(LONG_TYPE) invokevirtual("j/l/StringBuilder", "append", "(J)Lj/l/StringBuilder;") visitLdcInsn(" ms]") invokevirtual("j/l/StringBuilder", "append", "(Lj/l/String;)Lj/l/SB;") invokevirtual("j/l/StringBuilder", "toString", "()Lj/l/String;") invokevirtual("j/io/PrintStream", "println", "(Lj/l/String;)V") }M
269. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt InstructionAdapter(this).applyM{M //G ...Gbenchmark-printingGcode }M
270. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).applyL{L // ... method-trace-printing code // ... timestamp-storing code }W }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).applyM{M //G ...Gbenchmark-printingGcode }M } } super.visitInsn(opcode) } }3
271. kotlin-plugin/src/main/kotlin/debuglog/DebugLogClassBuilder.kt return object : MethodVisitor(Opcodes.ASM5, original) { override fun visitCode() { super.visitCode() InstructionAdapter(this).applyL{L // ... method-trace-printing code // ... timestamp-storing code }W }4 override fun visitInsn(opcode: Int) { when (opcode) { RETURN , ARETURN, IRETURN -> { InstructionAdapter(this).applyM{M //G ...Gbenchmark-printingGcode }M } } super.visitInsn(opcode) } }3
272. Done! Demo time!!!
273. Grab this code at: github.com/kevinmost/debuglog
274. Resources • https://github.com/JetBrains/kotlin/tree/master/plugins. Specifically: • noarg: One of the simplest ones • android-extensions: Good prior art for many of the extension types • kotlin-serialization: Newest one, documented well, generates LLVM • https://github.com/JetBrains/kotlin/tree/master/libraries/tools • All look pretty similar; noarg and allopen are the simplest to grok
275. Thank you! Kevin Most