[Bug]: Cart input shouldn't be taken into account for calculation of instruction usage

[Hahlh]

Please confirm that you have:

• Searched existing issues to see if your issue is a duplicate. (If you’ve found a duplicate issue, feel free to add additional information in a comment on it.)
• Reproduced the issue in the latest CLI version.

In which of these areas are you experiencing a problem?

Function

Expected behavior

The ideal behavior here would be that cart inputs aren't taken into consideration for enforcing function execution limitations as long as they aren't custom attributes that have been attached by the developer.

Actual behavior

It's possible to increase the calculated usage of instructions by simply increasing the amount of line items in cart.

This is the function code we used for testing this:

// @ts-check

/**
 * @typedef {import("../generated/api").RunInput} RunInput
 * @typedef {import("../generated/api").FunctionRunResult} FunctionRunResult
 */

/**
 * @type {FunctionRunResult}
 */
const NO_CHANGES = {
  operations: []
}

/**
 * @param {RunInput} input
 */
export function run(input) {
  const mergeOperations = []
  const response = mergeOperations.length
    ? { operations: mergeOperations }
    : NO_CHANGES
  return response
}

Result before:

Result after doubling the amount of line items in input.json:

The ideal behavior here would be that cart inputs aren't taken into consideration for enforcing function execution limitations as long as they aren't custom attributes that have been attached by the developer.

Operating System

Manjaro Linux

Shopify CLI version (check your project's package.json if you're not sure)

3.50.2

Shell

No response

Node version (run node -v if you're not sure)

No response

What language and version are you using in your application?

No response

[nickwesselman]

Hi @Hahlh! Scaling instruction count on cart size is a planned feature which you can track here:

Shopify/function-examples#329