Things imported from the helper are not defined

[zkuang]

sjs try to compile the cond example says "isKeyword is not defined"

[zkuang]

evalmachine.:8
if (isKeyword(stx) && unwrap(stx).value === "case") {
^
ReferenceError: isKeyword is not defined
at evalmachine.:8:11

[gabejohnson]

@zkuang can you provide your sjs version and a larger sample of your code?

[joom]

I have the same issue. The code is here: https://www.sweetjs.org/doc/tutorial.html#sweet-cond

I have just installed sjs.

[stevef51]

Does sweet-js have a future ? I just found it and looks exactly what I need to support our "modified Javascript" language, however I am having the same basic issue, "isKeyword is not defined" even though my first line is to import ..

import { unwrap, isKeyword } from '@sweet-js/helpers' for syntax;

syntax lingo = function(ctx) {
    let body = ctx.contextify(ctx.next().value);
    let result = #``;
    for(let s of body) {
        if (isKeyword(s) && unwrap(s).value === 'present') {

        } else {
            result = result.concat(s);
        }
    }
    return result;
}

lingo {
    var x = 0;

    present Section.One;
}

[nilslindemann]

Same here.

What I try to do:

// test.sjs

import { isStringLiteral } from '@sweet-js/helpers' for syntax;  // like the docs say
// import { isStringLiteral } from '@sweet-js/helpers/helpers.js' for syntax; // also tried this

syntax query = function (ctx) {
  let selector = ctx.next().value
  if (isStringLiteral(selector)) {   // <-- using it here
    return #`document.querySelector(${selector})`
  } else {
    let node = selector
    let selector = ctx.next().value
    return #`${node}.querySelector(${selector})`
  }
}
let body = query "body"
let main = query body "main"

Then I do

sjs test.sjs --no-babel --out-file test.js

And then it logs the following:

skipping module @sweet-js/helpers/helpers.js:1
evalmachine.<anonymous>:6
    if (isStringLiteral(selector_2)) {
    ^

ReferenceError: isStringLiteral is not defined
    at evalmachine.<anonymous>:6:5
    at Enforester.expandMacro (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:1981:87)
    at Enforester.enforestAssignmentExpression (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:1114:12)
    at Enforester.enforestExpressionLoop (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:1076:23)
    at Enforester.enforest (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:107:21)
    at Enforester.enforestVariableDeclarator (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:1013:18)
    at Enforester.enforestVariableDeclaration (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:970:23)
    at Enforester.enforestStatement (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:412:27)
    at Enforester.enforestModuleItem (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:136:17)
    at Enforester.enforestBody (C:\Users\Nils-Hero\AppData\Roaming\npm\node_modules\@sweet-js\cli\node_modules\@sweet-js\core\dist\enforester.js:123:17)

Notice the first line:

skipping module @sweet-js/helpers/helpers.js:1

Why does it skip this module?

For the records, I (re)installed Sweet.js and the helpers today doing ...

$ npm install -g @sweet-js/cli @sweet-js/helpers

... and the modules are actually installed globally, I checked it in the file system. The function isStringLiteral is also defined in @sweet-js/helpers/helpers.js.

The @sweet-js\cli\package.json gives 3.0.13 as version, the @sweet-js\helpers\package.json gives 4.0.1 as version.