hello! i followed the getting started guide to use kotlin/wasm in intellij and it worked great, but ...

# webassembly

[Sam Estep]

hello! i followed the getting started guide to use kotlin/wasm in intellij and it worked great, but i want to figure out how to compile kotlin to wasm directly on the command line, similar to `kotlinc`; i installed kotlin via homebrew on my mac and tried looking for a kotlin/wasm cli tool in /opt/homebrew/bin/kotlin* but these were the only ones i saw:
• kotlin
• kotlin-dce-js
• kotlinc
• kotlinc-js
• kotlinc-jvm
and when i run kotlinc-js -help i don't see anything about wasm, so i'm guessing that isn't the right tool; anyways, is there a way i can do this?

[Svyatoslav Kuzmich [JB]]

Hello! We don’t have a proper CLI for Wasm target yet.

We have a human-unfriendly way to do this through kotlinc-js . I have found a script I made for a simple case. It runs CLI two times: compiling .klib and .wasm. Additionally you will need a stdlib library of the same version with path written to STDLIB variable.

SRC=$1
OUT_DIR=$2
MODULE_NAME=$3
STDLIB=/path/to/kotlin-stdlib-wasm-js.klib

kotlinc-js -Xwasm -libraries $STDLIB -ir-output-dir=$OUT_DIR/klib -ir-output-name $MODULE_NAME -Xir-produce-klib-file $SRC
kotlinc-js -Xwasm -libraries $STDLIB -ir-output-dir=$OUT_DIR/wasm -ir-output-name $MODULE_NAME -Xir-produce-js -Xinclude=$OUT_DIR/klib/$MODULE_NAME.klib

[Svyatoslav Kuzmich [JB]]

kotlinc-js -X would show help for all -X… flags that are missing from -help

If you have a gradle build, you can run it with --debug and fish out the kotlinc-js arguments from the debug log to replicate it manually.

[Sam Estep]

amazing, thank you! i'll try those both out