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Debugging hints
To debug the Haxe compiler, you can use either a system debugger (gdb
/lldb
), or ocamldebug. ocamldebug
provides a better debugging experience. To use it, uncomment (modes byte)
from src/dune and recompile.
To print information about a type, you can add the following before most lines:
Printf.printf "%s\n" (s_type_kind t);
To print specific data structure, you can see other functions with s_
prefix, or check Printer.s_*
functions
print_endline (s_expr_debug expr);
print_endline (Printer.s_type t);
There are lots of other stringifying functions in src/core/tPrinting.ml
. If specific data structure is not there, you can try to convert it to json first:
let jctx = Genjson.create_context GMFull in
let json = (Genjson.generate_anon_status jctx anon.a_status) in
print_endline (Json.string_of_json json);
If you want to get stacktrace of current call without debugger, you can add die "" __LOC__;
to crash compiler on specific line.
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