[bug] syntest break

[Freed-Wu]

❯ git clone --depth=1 https://github.com/sharkdp/bat
...
❯ RUST_BACKTRACE=full syntest . .
loading syntax definitions from .
Testing file ./syntax_test_csv.csv
The test file references syntax definition file: CSV.sublime-syntax
Ok(Success(213))
Testing file ./syntax_test_man.man
The test file references syntax definition file: Manpage.sublime-syntax
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: UnresolvedContextReference(ByScope { scope: <source.c>, sub_context: None, with_escape: true })', examples/syntest.rs:276:51
stack backtrace:
   0:     0x5595448d9f7d - <unknown>
   1:     0x5595448fa25c - <unknown>
   2:     0x5595448d76c1 - <unknown>
   3:     0x5595448db605 - <unknown>
   4:     0x5595448db326 - <unknown>
   5:     0x5595448dbb96 - <unknown>
   6:     0x5595448dba87 - <unknown>
   7:     0x5595448da434 - <unknown>
   8:     0x5595448db7b9 - <unknown>
   9:     0x5595447bea43 - <unknown>
  10:     0x5595447beb33 - <unknown>
  11:     0x5595447c3e66 - <unknown>
  12:     0x5595447c1625 - <unknown>
  13:     0x5595447cca93 - <unknown>
  14:     0x5595447cd279 - <unknown>
  15:     0x5595448d3c6e - <unknown>
  16:     0x5595447c44f2 - <unknown>
  17:     0x7f3c76ddb2d0 - <unknown>
  18:     0x7f3c76ddb38a - __libc_start_main
  19:     0x5595447bece5 - <unknown>
  20:                0x0 - <unknown>

[Freed-Wu]

It is related to c. Because C.sublime-syntax doesn't exist, so the following code will has bug.

       The corresponding argument for pselect() has the following type:
#^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - source.c

[keith-hall]

Presumably doing a git clone with depth 1 doesn't initialize any submodules, so the C syntax file doesn't exist? Or am I missing something?

[Freed-Wu]

You are right. Just download https://raw.githubusercontent.com/sublimehq/Packages/759d6eed9b4beed87e602a23303a121c3a6c2fb3/C%2B%2B/C.sublime-syntax and retest, the bug disappear. So I still think it is a bug, at least, it should tell user missing C.sublime-syntax, not raise an error.

[keith-hall]

I guess we can make use of #338 in the syntest example to solve this.