How to add an option to VL53L0X module

I have just done translation of some part of VL53L0X library to JS. But I can not check it. May be because of small memory on ESP8266 - I am not sure. Or may be there are many bugs there. Could you help me?
Here is console output after I try to load the module.

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          |_| http://espruino.com
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Flash map 4MB:1024/1024, manuf 0x5e chip 0x4016
>Uncaught SyntaxError: Got UNFINISHED STRING expected EOF
 at line 1 col 31
Modules.addCached("VL53L0Xmy","var C={SYSRANGE_START:0,SYSTE...
                              ^
New interpreter error: LOW_MEMORY,MEMORY
Uncaught Error: Module "VL53L0Xmy" not found
 at line 1 col 32
...or[0] = require("VL53L0Xmy").connect(i2c,{address:0x52,addre...
                              ^
1
=undefined
>process.memory()
={ "free": 1496, "usage": 104, "total": 1600, "history": 608,
  "gc": 5, "gctime": 1.99 }
>