66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
// 12 may 2019
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#include <stdarg.h>
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#include <stdio.h>
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#include "ui.h"
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#include "uipriv.h"
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#define internalErrorPrefix "libui internal error"
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// TODO add debugging advice?
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#define internalErrorSuffix "This likely means there is a bug in libui itself. Contact the libui authors."
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void uiprivInternalError(const char *fmt, ...)
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{
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va_list ap;
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char buf[256];
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int n;
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va_start(ap, fmt);
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n = vsnprintf(buf, 256, fmt, ap);
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va_end(ap);
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if (n < 0)
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uiprivReportError(internalErrorPrefix, "internal error string has encoding error", internalErrorSuffix, true);
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if (n >= 256)
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uiprivReportError(internalErrorPrefix, "internal error string too long", internalErrorSuffix, true);
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uiprivReportError(internalErrorPrefix, buf, internalErrorSuffix, true);
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}
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static const char *messages[uiprivNumProgrammerErrors] = {
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[uiprivProgrammerErrorWrongStructSize] = "wrong size %zu for %s",
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[uiprivProgrammerErrorIndexOutOfRange] = "index %d out of range in %s()",
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[uiprivProgrammerErrorNullPointer] = "invalid null pointer for %s passed into %s()",
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[uiprivProgrammerErrorIntIDNotFound] = "%s identifier %d not found in %s()",
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[uiprivProgrammerErrorBadSenderForEvent] = "attempt to use a %s sender with a %s event in %s()",
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[uiprivProgrammerErrorChangingEventDuringFire] = "attempt to change a uiEvent with %s() while it is firing",
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[uiprivProgrammerErrorRecursiveEventFire] = "attempt to fire a uiEvent while it is already being fired",
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};
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static void prepareProgrammerError(char *buf, int size, unsigned int which, va_list ap)
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{
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int n;
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if (which >= uiprivNumProgrammerErrors)
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uiprivInternalError("bad programmer error value %u", which);
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if (messages[which] == NULL)
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uiprivInternalError("programmer error %u has no message", which);
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n = vsnprintf(buf, size, messages[which], ap);
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if (n < 0)
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uiprivInternalError("programmer error string for %u has encoding error", which);
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if (n >= size)
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uiprivInternalError("programmer error string for %u too long (%d)", which, n);
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}
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#define programmerErrorPrefix "libui programmer error"
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// TODO add debugging advice?
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#define programmerErrorSuffix "This likely means you are using libui incorrectly. Check your source code and try again. If you have received this warning in error, contact the libui authors."
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void uiprivProgrammerError(unsigned int which, ...)
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{
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va_list ap;
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char buf[256];
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va_start(ap, which);
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prepareProgrammerError(buf, 256, which, ap);
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va_end(ap);
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uiprivReportError(programmerErrorPrefix, buf, programmerErrorSuffix, false);
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}
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