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MslEditorLanguage.kt

src/jvmMain/kotlin/afield/graphics/shader/MslEditorLanguage.kt · 50 lines

package afield.graphics.shader

import afield.geometry.path.div
import afield.geometry.path.minus
import afield.geometry.path.plus
import afield.geometry.path.times
import afield.graphics.visionos.msl
import afield.lang.remotejs.JsFun

import java.io.File

The Monaco editor language for Metal Shading Language, used by the msl box property.

object MslEditorLanguage

The Monaco language for Field's msl box property — Metal Shading Language for a visionOS head.

The single source of truth is the static resource src/commonMain/resources/msl.js, served to the browser as the AMD module bithero/msl (see bootstrapMonaco.js) and read verbatim here so the node-probe smoke test exercises the exact code that ships.

object MslEditorLanguage {

const val id: String = "msl"

The language id, msl, as the same string languageId holds. Neither constant reaches the browser: the id Monaco registers is declared inside msl.js itself.

const val languageId: String = "msl"

The Monaco language id Field uses for the msl property, and for .metal / .msl files.

fun javascript(): String

The text of msl.js, read from the classpath, or from src/commonMain/resources/msl.js relative to the working directory when the resource is not on it. Throws when neither is there, rather than returning an empty grammar.

    fun javascript(): String {
        MslEditorLanguage::class.java.getResourceAsStream("/msl.js")?.use { stream ->
            return stream.readBytes().toString(Charsets.UTF_8)
        }
        val onDisk = File("./src/commonMain/resources/msl.js")
        require(onDisk.isFile) { "msl.js not found on the classpath or at ${onDisk.absolutePath}" }
        return onDisk.readText(Charsets.UTF_8)
    }
}

fun mslEditorLanguageJavascript(): String = MslEditorLanguage.javascript()

The same text MslEditorLanguage.javascript returns, as a top-level function.