ES5 bundle produces ES6 code in runtime

[victor-wm]

The template parser generates a series of javascript instructions to be executed by new Function() and the code present there can contain the const keyword which is not valid ES5.

See:
https://github.com/rdkcentral/Lightning/blob/master/src/application/Component.mjs#L122
https://github.com/rdkcentral/Lightning/blob/master/src/application/Component.mjs#L125
https://github.com/rdkcentral/Lightning/blob/master/src/application/Component.mjs#L142
https://github.com/rdkcentral/Lightning/blob/master/src/application/Component.mjs#L149

Even when the code is transpiled to es5 (in lightning.es5.min.js) the strings are left intact.

[victor-wm]

Same applies for the StateMachine.

See:
https://github.com/rdkcentral/Lightning/blob/master/src/application/StateMachine.mjs#L457

[g-zachar]

Hi @victor-wm,

thanks for reporting, this is indeed an issue. What browser are you using? There seem to be scarcity of browsers that don't have basic support for const binding, hence the issue went unnoticed until now.

Best regards

[victor-wm]

That report came from code analysis only. I can imagine old devices such as Tizen 2.3.0 or limited settop-boxes would suffer from this.