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yasm/libyasm/tests/absloop-err.errwarn

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Revamp error/warning handling, using a model similar to Python's internal exception handling. There are now two layers an error or warning goes through before it hits the user: first an error is logged via yasm_error_set() (or yasm_warn_set() for a warning). Only one error may be set, whereas multiple warnings can be set (yasm_warn_set maintains a linked list). Then, calling yasm_errwarn_propagate() propagates any error and/or warning(s) to an errwarns structure and associates the errors/warnings with a line number at that time; this call also clears the pending errors/warnings and allows new ones to be set. The propagate function can safely be called when there are no pending error/warnings. In addition, there are some helper errwarn functions that allow clearing of an error/warning without propagating, getting it separately, etc. Still yet to be done: changing most/all uses of yasm_internal_error() into yasm_error_set(YASM_ERROR_ASSERTION). The main advantage this change has is making libyasm functions feel much more library like, and separating the user code line numbers from the inner function error handling (e.g. intnum create functions only needed the line number to trigger errors; this is no longer required). The set/propagate/etc functions use global data structures to avoid passing around a pointer to every function. This would need to be made thread-local data in a threaded app. Errwarns containers (that keep associated line numbers) are no longer global, so multiple source streams can be processed separately with no conflict (at least if there's only a single thread of execution). svn path=/trunk/yasm/; revision=1521
19 years ago
-:6: circular reference detected in memory expression