Leonid Shalupov
7480befe32
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
Kotlin Libraries
This part of the project contains the sources of the following libraries:
- kotlin-stdlib, the standard library for Kotlin/JVM, Kotlin/JS and its additional parts for JDK 7 and JDK 8
- kotlin-reflect, the library for full reflection support
- kotlin-test, the library for multiplatform unit testing
- kotlin-annotations-jvm, the annotations to improve types in the Java code to look better when being consumed in the Kotlin code.
These libraries are built as a part of the root Gradle project.
Kotlin Maven Tools
This area of the project is the root for Maven build.
You can work with the maven modules of this maven project in IDEA from the root IDEA project. After importing you'll be able to explore maven projects and run goals directly from IDEA with the instruments on the right sidebar.
Building
You need to install a recent (at least 3.3) Maven distribution.
Before building this Maven project you need to build and install the required artifacts built with Gradle to the local maven repository, by issuing the following command in the root project:
./gradlew install
Note: on Windows type
gradlewwithout the leading./
This command assembles and puts the artifacts to the local maven repository to be used by the subsequent maven build. See also root ReadMe.md, section "Building".
Then you can build maven artifacts with Maven:
mvn install
If your maven build is failing with Out-Of-Memory errors, set JVM options for maven in MAVEN_OPTS environment variable like this:
MAVEN_OPTS="-Xmx2G"