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/*
* Foundational functions for C code output.
*
* Copyright © 2020-2025 Samuel Lidén Borell <samuel@kodafritt.se>
*
* SPDX-License-Identifier: EUPL-1.2+
*/
#include <stdarg.h>
#include <stdio.h>
#include "compiler.h"
#include "out.h"
const char *outfile_path = NULL;
FILE *outfile = NULL;
int indentlevel = 0;
NORETURN void io_error(void)
{
perror(outfile_path);
exit(EXIT_FAILURE);
}
NORETURN void ast_error(const char *msg)
{
fprintf(stderr, "bootstrap compiler: internal error: %s\n", msg);
exit(EXIT_FAILURE);
}
void outc(char c)
{
if (fputc(c, outfile) == EOF) {
io_error();
}
}
void indent(void)
{
int spaces = 4*indentlevel;
while (spaces--) outc(' ');
}
static void outvf_(const char *fmt, va_list ap)
{
if (vfprintf(outfile, fmt, ap) < 0) {
io_error();
}
}
void outf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
outvf_(fmt, ap);
va_end(ap);
}
void beginf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
indent();
indentlevel++;
outvf_(fmt, ap);
va_end(ap);
}
void endf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
indentlevel--;
indent();
outvf_(fmt, ap);
va_end(ap);
}
void indentf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
indent();
outvf_(fmt, ap);
va_end(ap);
}
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