Description
First of all, this problem is reproduced when using jq as a library inside your program. I am executing an expression with tonumber or fromjson and if input is not valid, then the next call to jq_compile fails with this dump:
jq: error: Invalid numeric literal at EOF at line 1, column 1 (while parsing '5') at <builtin>, line 1:
def halt_error: halt_error(5);
jq: error: Invalid numeric literal at EOF at line 1, column 1 (while parsing '0') at <builtin>, line 7:
def unique: group_by(.) | map(.[0]);
jq: error: Invalid numeric literal at EOF at line 1, column 1 (while parsing '0') at <builtin>, line 8:
def unique_by(f): group_by(f) | map(.[0]);
... more lines related to parsing builtins.inc ...
jq: error: Invalid numeric literal at EOF at line 1, column 1 (while parsing '0') at <builtin>, line 248:
else (-1 -.[0])
jq: error: Invalid numeric literal at EOF at line 1, column 1 (while parsing '2') at <builtin>, line 250:
else .[2]
jq: src/builtin.c:1806: builtins_bind: Assertion `!nerrors' failed.
You can reproduce this bug with make check and this test at the start of tests/jq.test:
try (tonumber) catch ("Should catch error")
"a20"
"Should catch error"
Or with fromjson:
try (fromjson) catch ("Should catch error")
"a20"
"Should catch error"
The test is passed, but next test fails to compile with the described problem.
I've put jq.test and test-suite.log here: https://gist.github.com/diafour/3b3d8f123b642ff095c41c16d6f32d0e
As you can see, the output is not for the last commit in the master branch, but for jq 1.6-99-gcf4b48c-dirty (cf4b48c). That's the first commit with this problem. The previous commit, b6be13d works great.
I see changes related to try/catch and find this issue #1859, but I don't know if this is related.
@nicowilliams can you help with this? I can make more tests if needed.