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[OCaml] Some exception improvements

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The OCaml module's exception handling code was poorly designed,
gave confusing exception messages, and was vulnerable to buffer
overflows.

The OCaml module's SWIG_exception_() was adding a useless newline to
the end of the exception message.

In some cases, the integer value of f.e. SWIG_TypeError was being added
to the exception message.

The unneeded else in the OCaml module's SWIG_contract_assert() macro
was causing -Wmisleading-indentation warnings.

The OCaml module's exception handling code now mirrors that of the
Java module.

Add Lib/ocaml/std_except.i.
Add multiple runtime tests.
This commit is contained in:
Zackery Spytz 2019-02-07 16:25:10 -07:00
commit e5b8b5a164
12 changed files with 264 additions and 41 deletions
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Lib/std_except.i
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@ -19,7 +19,7 @@
* a new std_except.i file in the target library directory.
* ----------------------------------------------------------------------------- */
#if defined(SWIGJAVA) || defined(SWIGCSHARP) || defined(SWIGGUILE) || defined(SWIGUTL) || defined(SWIGD)
#if defined(SWIGJAVA) || defined(SWIGCSHARP) || defined(SWIGGUILE) || defined(SWIGUTL) || defined(SWIGD) || defined(SWIGOCAML)
#error "This version of std_except.i should not be used"
#endif