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// Copyright © Tavian Barnes <tavianator@tavianator.com>
// SPDX-License-Identifier: 0BSD
/**
* Diagnostic messages.
*/
#ifndef BFS_DIAG_H
#define BFS_DIAG_H
#include "ctx.h"
#include "config.h"
#include <stdarg.h>
/**
* static_assert() with an optional second argument.
*/
#if __STDC_VERSION__ >= 202311L
# define bfs_static_assert static_assert
#else
# define bfs_static_assert(...) BFS_STATIC_ASSERT(__VA_ARGS__, #__VA_ARGS__, )
# define BFS_STATIC_ASSERT(expr, msg, ...) _Static_assert(expr, msg)
#endif
/**
* Print a message to standard error and abort.
*/
BFS_FORMATTER(1, 2)
noreturn void bfs_abortf(const char *format, ...);
/**
* Unconditional abort with a message.
*/
#define bfs_abort(...) \
BFS_ABORT(__VA_ARGS__, "\n")
#define BFS_ABORT(format, ...) \
bfs_abortf((format) ? "%s: %s:%d:%s(): " format "%s" : "", BFS_COMMAND, __FILE__, __LINE__, __func__, __VA_ARGS__)
/**
* Abort in debug builds; no-op in release builds.
*/
#ifdef NDEBUG
# define bfs_bug(...) ((void)0)
#else
# define bfs_bug bfs_abort
#endif
struct bfs_expr;
/**
* Like perror(), but decorated like bfs_error().
*/
void bfs_perror(const struct bfs_ctx *ctx, const char *str);
/**
* Shorthand for printing error messages.
*/
BFS_FORMATTER(2, 3)
void bfs_error(const struct bfs_ctx *ctx, const char *format, ...);
/**
* Shorthand for printing warning messages.
*
* @return Whether a warning was printed.
*/
BFS_FORMATTER(2, 3)
bool bfs_warning(const struct bfs_ctx *ctx, const char *format, ...);
/**
* Shorthand for printing debug messages.
*
* @return Whether a debug message was printed.
*/
BFS_FORMATTER(3, 4)
bool bfs_debug(const struct bfs_ctx *ctx, enum debug_flags flag, const char *format, ...);
/**
* bfs_error() variant that takes a va_list.
*/
BFS_FORMATTER(2, 0)
void bfs_verror(const struct bfs_ctx *ctx, const char *format, va_list args);
/**
* bfs_warning() variant that takes a va_list.
*/
BFS_FORMATTER(2, 0)
bool bfs_vwarning(const struct bfs_ctx *ctx, const char *format, va_list args);
/**
* bfs_debug() variant that takes a va_list.
*/
BFS_FORMATTER(3, 0)
bool bfs_vdebug(const struct bfs_ctx *ctx, enum debug_flags flag, const char *format, va_list args);
/**
* Print the error message prefix.
*/
void bfs_error_prefix(const struct bfs_ctx *ctx);
/**
* Print the warning message prefix.
*/
bool bfs_warning_prefix(const struct bfs_ctx *ctx);
/**
* Print the debug message prefix.
*/
bool bfs_debug_prefix(const struct bfs_ctx *ctx, enum debug_flags flag);
/**
* Highlight parts of the command line in an error message.
*/
void bfs_argv_error(const struct bfs_ctx *ctx, const bool *args);
/**
* Highlight parts of an expression in an error message.
*/
void bfs_expr_error(const struct bfs_ctx *ctx, const struct bfs_expr *expr);
/**
* Highlight parts of the command line in a warning message.
*/
bool bfs_argv_warning(const struct bfs_ctx *ctx, const bool *args);
/**
* Highlight parts of an expression in a warning message.
*/
bool bfs_expr_warning(const struct bfs_ctx *ctx, const struct bfs_expr *expr);
#endif // BFS_DIAG_H
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