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more friendly/useful error for stack overflow in type inference #44971

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merged 2 commits into from
Apr 15, 2022
Merged

more friendly/useful error for stack overflow in type inference #44971

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f56221f
more friendly/useful error for stack overflow in type inference
JeffBezanson Apr 13, 2022
5399ac1
Merge branch 'master' into jb/typeinfovf
aviatesk Apr 15, 2022
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17 changes: 13 additions & 4 deletions src/gf.c
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Original file line number Diff line number Diff line change
Expand Up @@ -317,10 +317,19 @@ jl_code_info_t *jl_type_infer(jl_method_instance_t *mi, size_t world, int force)
src = (jl_code_info_t*)jl_apply(fargs, 3);
}
JL_CATCH {
jl_printf((JL_STREAM*)STDERR_FILENO, "Internal error: encountered unexpected error in runtime:\n");
jl_static_show((JL_STREAM*)STDERR_FILENO, jl_current_exception());
jl_printf((JL_STREAM*)STDERR_FILENO, "\n");
jlbacktrace(); // written to STDERR_FILENO
jl_value_t *e = jl_current_exception();
if (e == jl_stackovf_exception) {
jl_printf((JL_STREAM*)STDERR_FILENO, "Internal error: stack overflow in type inference of ");
jl_static_show_func_sig((JL_STREAM*)STDERR_FILENO, (jl_value_t*)mi->specTypes);
jl_printf((JL_STREAM*)STDERR_FILENO, ".\n");
jl_printf((JL_STREAM*)STDERR_FILENO, "This might be caused by recursion over very long tuples or argument lists.\n");
}
else {
jl_printf((JL_STREAM*)STDERR_FILENO, "Internal error: encountered unexpected error in runtime:\n");
jl_static_show((JL_STREAM*)STDERR_FILENO, e);
jl_printf((JL_STREAM*)STDERR_FILENO, "\n");
jlbacktrace(); // written to STDERR_FILENO
}
src = NULL;
}
ct->world_age = last_age;
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