Error message line numbers incorrect when compiling multiple .ino files

[nickgammon]

IDE 1.0.4.

Test case:

main sketch:

/*

Test sketch



*/

Open new tab in IDE, create tab named: partb.ino

Put this in partb.ino:

#include <SPI.h>           // SPI library for sending data to the shift registers

byte foo [] = { 
   1,
   2    // <---- this line has the error (line 5)
   3,
   4 };

byte bar [] = 
  {
  5,
  6,
  7,
  8,   // <---- this line given as error line (line 14)
  9,
  10,   
  11};

Compile (eg. with Uno as target).

Error is reported at line 14:

partb:14: error: expected `}' before numeric constant
partb:14: error: expected ',' or ';' before numeric constant
partb:15: error: expected declaration before '}' token

However error is actually at line 5.

Generated combined (concatenated) file in the temporary directory is:

#line 1 "sketch_jun22b.ino"
/*

Test sketch



*/
#line 1 "partb.ino"
#include <SPI.h>           // SPI library for sending data to the shift registers

#include "Arduino.h"
#line 11
byte foo [] = {
   1,
   2    // <---- this line has the error (line 5)
   3,
   4 };

byte bar [] =
  {
  5,
  6,
  7,
  8,   // <---- this line given as error line (line 14)
  9,
  10,
  11};

Note that the #line 11 directive is wrong. It is out by the number of lines in the main sketch. It is not line 11, it is line 3.

The #line directive appears to be out by 9 lines. This appears to be the number of lines in the main sketch, plus one for the #include "Arduino.h" line. (Plus one extra one, depending on which line the error is really on).

This is a simplified version of a much larger sketch that exhibited this problem. In that sketch the line number was way out, making spotting the error very hard.

[nickgammon]

The #line directive appears to be out by 9 lines.

I can't do simple arithmetic it seems. :)

It was out by 8 lines. That is the 7 lines in the main sketch, plus one for the added include line.

[Chris--A]

@nickgammon

This appears to be fixed in 1.5.7 and above, the errors below have the correct numbers.

sketch_mar26b.ino:6:4: error: expected '}' before numeric constant
sketch_mar26b.ino:6:4: error: expected ',' or ';' before numeric constant
sketch_mar26b.ino:7:6: error: expected declaration before '}' token

[ffissore]

Note to self: issue still valid despite #2729

[ffissore]

Fixed by #3779