Compiler error - can't use single line comments in scriptlets

[StarpTech]

Marko Version: 4.15.2

Details

I would like to use inline-javascript in a single-file-component. As soon as I use // single-line comments the compiler will throw an error. Multi-line comments are fine.

$ {
    const { i18n, locale } = out.global;
    const { key } = input;
    let message = '';

    // isn't
    if (i18n) {
        message = i18n.__(key);
    }
}

-- ${message}

Expected Behavior

I can use single line comments in scriptlets

Actual Behavior

An error is thrown

Possible Fix

Additional Info

Your Environment

• Ubuntu 18.04, Node 8.10.0

Stack Trace

1) [src/components/i18n-message/index.marko:1:1] EOF reached while parsing scriptet

    at handleErrors (/mnt/ssd/repositories/project/demo/node_modules/marko/src/compiler/Compiler.js:94:21)
    at Compiler.compile (/mnt/ssd/repositories/project/demo/node_modules/marko/src/compiler/Compiler.js:177:9)
    at _compile (/mnt/ssd/repositories/project/demo/node_modules/marko/src/compiler/index.js:94:33)
    at compileFile (/mnt/ssd/repositories/project/demo/node_modules/marko/src/compiler/index.js:149:16)
    at Object.compileFileForBrowser (/mnt/ssd/repositories/project/demo/node_modules/marko/src/compiler/index.js:163:12)
    at Promise (/mnt/ssd/repositories/project/demo/node_modules/lasso-marko/lasso-marko-plugin.js:34:34)
    at new Promise (<anonymous>)
    at compile (/mnt/ssd/repositories/project/demo/node_modules/lasso-marko/lasso-marko-plugin.js:32:16)
    at Ctor.<anonymous> (/mnt/ssd/repositories/project/demo/node_modules/lasso-marko/lasso-marko-plugin.js:78:28)
    at Ctor.doInit (/mnt/ssd/repositories/project/demo/node_modules/callbackify/index.js:16:15)
Creation stack trace: Error
    at AsyncStream.beginAsync (/mnt/ssd/repositories/project/demo/node_modules/marko/src/runtime/html/AsyncStream.js:192:56)
    at render (/mnt/ssd/repositories/project/demo/node_modules/@lasso/marko-taglib/taglib/slot-tag.js:128:24)
    at render (/mnt/ssd/repositories/project/demo/node_modules/@lasso/marko-taglib/taglib/head-tag.js:16:3)
    at wrappedRenderer (/mnt/ssd/repositories/project/demo/node_modules/marko/src/runtime/helpers.js:273:13)
    at renderBody (/mnt/ssd/repositories/project/demo/src/pages/home/index.marko.js:40:13)
    at dynamicTag (/mnt/ssd/repositories/project/demo/node_modules/marko/src/runtime/helpers.js:243:33)
    at render (/mnt/ssd/repositories/project/demo/src/components/app-layout/index.marko.js:28:3)
    at Template.renderer (/mnt/ssd/repositories/project/demo/node_modules/marko/src/components/renderer.js:217:9)
    at hotReloadProxy (/mnt/ssd/repositories/project/demo/node_modules/marko/src/hot-reload.js:97:31)
    at wrappedRenderer (/mnt/ssd/repositories/project/demo/node_modules/marko/src/runtime/helpers.js:273:13)
    at AsyncStream.error (/mnt/ssd/repositories/project/demo/node_modules/marko/src/runtime/html/AsyncStream.js:441:13)
    at process.nextTick (/mnt/ssd/repositories/project/demo/node_modules/@lasso/marko-taglib/taglib/slot-tag.js:139:20)
    at _combinedTickCallback (internal/process/next_tick.js:131:7)
    at process._tickCallback (internal/process/next_tick.js:180:9)