NAME ^

src/warnings.c - Warning and error reporting

DESCRIPTION ^

Parrot STRING and C string versions of a function to print warning/error messages.

*/

#include "parrot/parrot.h"

#include <stdarg.h>

/* HEADERIZER HFILE: include/parrot/warnings.h */

/* HEADERIZER BEGIN: static */

static INTVAL print_warning( PARROT_INTERP, NULLOK(STRING *msg) ) __attribute__nonnull__(1);

/* HEADERIZER END: static */

/*

FUNCDOC: print_pbc_location

Prints the bytecode location of the warning or error to PIO_STDERR.

*/

void print_pbc_location(PARROT_INTERP) { Interp * const tracer = interp->debugger ? interp->debugger : interp; PIO_eprintf(tracer, "%Ss\n", Parrot_Context_infostr(interp, CONTEXT(interp->ctx))); }

/*

FUNCDOC: print_warning

Prints the warning message and the bytecode location.

*/

static INTVAL print_warning(PARROT_INTERP, NULLOK(STRING *msg)) { if (!msg) PIO_puts(interp, PIO_STDERR(interp), "Unknown warning\n"); else { PIO_putps(interp, PIO_STDERR(interp), msg); if (string_ord(interp, msg, -1) != '\n') PIO_eprintf(interp, "%c", '\n'); } print_pbc_location(interp); return 1; }

/*

Parrot Warnings Interface ^

FUNCDOC: Parrot_warn

The Parrot C string warning/error reporter.

Returns 2 on error, 1 on success.

message, .. can be a Parrot_vsprintf_c() format with arguments.

*/

PARROT_API INTVAL Parrot_warn(PARROT_INTERP, INTVAL warnclass, NOTNULL(const char *message), ...) { STRING *targ;

    va_list args;

    PARROT_ASSERT(interp);
    if (!PARROT_WARNINGS_test(interp, warnclass))
        return 2;

    va_start(args, message);
    targ = Parrot_vsprintf_c(interp, message, args);
    va_end(args);
    return print_warning(interp, targ);
}

/*

FUNCDOC: Parrot_warn_s

The Parrot STRING warning/error reporter.

Returns 2 on error, 1 on success.

message, .. can be a Parrot_vsprintf_s() format with arguments.

*/

PARROT_API INTVAL Parrot_warn_s(NULLOK_INTERP, INTVAL warnclass, NOTNULL(STRING *message), ...) { STRING *targ;

    va_list args;

    if (!interp || !PARROT_WARNINGS_test(interp, warnclass))
        return 2;

    va_start(args, message);
    targ = Parrot_vsprintf_s(interp, message, args);
    va_end(args);

    return print_warning(interp, targ);
}

/*

SEE ALSO ^

include/parrot/warnings.h.

*/

/* * Local variables: * c-file-style: "parrot" * End: * vim: expandtab shiftwidth=4: */


 parrot