Replace reflection-based compiler arguments copying with generated code

Using of Kotlin reflection for simple operations like bean management is very slow

First time initialization time: 261 ms for `copyBean(K2JVMCompilerArguments())`
Subsequent calls of `copyBean(K2JVMCompilerArguments())` take 1.7 ms per call

Unfortunately compiler argument handling is also used in Kotlin IntelliJ plugin
to parse facet settings. Big projects may have thousands of Kotlin facets

The same `ArgumentUtilsKt.copyProperties` frame is seen across various freezes:
IDEA-252440 2-3 minutes freeze on Kotlin project reimporting in last 203 eap
IDEA-253107 A lot of short freezes (1-3 sec) during Kotlin project development
KTIJ-23501 Make main run configuration detection lighter
KTIJ-22435 Unresponsive UI with 100% cpu

Reflection issue:
KT-56358 KClasses.getMemberProperties takes too much time

This commit replaces all reflection stuff with a simple code generation
Now `K2JVMCompilerArguments().clone()` goes to hard-to-measure time
This commit is contained in:
Leonid Shalupov
2023-03-08 18:20:51 +01:00
parent 56557fb8ff
commit 7480befe32
34 changed files with 744 additions and 75 deletions
@@ -10,7 +10,9 @@ import org.jetbrains.jps.model.ex.JpsElementChildRoleBase
import org.jetbrains.jps.model.java.JpsJavaExtensionService
import org.jetbrains.jps.model.module.JpsModule
import org.jetbrains.kotlin.cli.common.arguments.*
import org.jetbrains.kotlin.config.*
import org.jetbrains.kotlin.config.CompilerSettings
import org.jetbrains.kotlin.config.KotlinFacetSettings
import org.jetbrains.kotlin.config.KotlinModuleKind
import org.jetbrains.kotlin.platform.TargetPlatform
val JpsModule.kotlinFacet: JpsKotlinFacetModuleExtension?
@@ -70,7 +72,7 @@ val JpsModule.testOutputFilePath: String?
val JpsModule.kotlinCompilerSettings: CompilerSettings
get() {
val defaultSettings = copyBean(project.kotlinCompilerSettings)
val defaultSettings = project.kotlinCompilerSettings.copyOf()
val facetSettings = kotlinFacet?.settings ?: return defaultSettings
if (facetSettings.useProjectSettings) return defaultSettings
return facetSettings.compilerSettings ?: defaultSettings
@@ -90,7 +92,7 @@ val JpsModule.k2JvmCompilerArguments
private inline fun <reified T : CommonCompilerArguments> JpsModule.getCompilerArguments(): T {
val projectSettings = project.kotlinCompilerSettingsContainer[T::class.java]
val projectSettingsCopy = copyBean(projectSettings)
val projectSettingsCopy = projectSettings.copyOf()
val facetSettings = kotlinFacet?.settings ?: return projectSettingsCopy
if (facetSettings.useProjectSettings) return projectSettingsCopy