Firebase with Arduino IDE makes function definitions in .ino order dependant

[danielcrowley]

This issue was hidden away in a larger project but I've managed to simplify it down to a very basic definition of a function in the .ino.
This is happening in the Ardunino IDE, but works fine with Visual Micro.

//#include <Firebase.h>

void setup() {

  test();
}

void loop() {
}

void test(){
  Serial.println("woo");
}

This complies, but if you uncomment the #include, and it says test() hasn't been declared

C:\Users\Daniel\AppData\Local\Temp\arduino_0c4b0ad3e77c4cee76cbe62faa3f08cf\FirebasePush_ESP8266.ino: In function 'void setup()':

FirebasePush_ESP8266:5: error: 'test' was not declared in this scope

   test();

        ^

exit status 1
'test' was not declared in this scope

But moving test() definition to the top of the file it works again.

#include <Firebase.h>

void test(){
  Serial.println("woo");
}


void setup() {

  test();
}

void loop() {
}

[danielcrowley]

Seems to actually have been an issue with the ESP8266WIFI library,
Resolved when updated to version 2.1.0 of ESP board package and 1.6.8 of Arduino.

Didn't find cause of the underlying issue.