+/*
+ * This file is part of cparser.
+ * Copyright (C) 2012 Matthias Braun <matze@braunis.de>
+ */
#include <stdarg.h>
#include <stdio.h>
-#include "adt/error.h"
-#include "ast.h"
#include "diagnostic.h"
+#include "adt/error.h"
+#include "entity_t.h"
+#include "separator_t.h"
+#include "symbol_t.h"
#include "token_t.h"
+#include "ast.h"
#include "type.h"
+#include "warning.h"
-
-//#define ABORT_ON_ERROR
-
-/** Number of occurred diagnostics. */
-unsigned diagnostic_count = 0;
/** Number of occurred errors. */
-unsigned error_count = 0;
+unsigned error_count = 0;
/** Number of occurred warnings. */
-unsigned warning_count = 0;
+unsigned warning_count = 0;
+bool show_column = true;
+bool diagnostics_show_option = true;
+
+static const position_t *curr_pos = NULL;
+
+/**
+ * prints an additional source position
+ */
+static void print_position(FILE *out, const position_t *pos)
+{
+ fprintf(out, "at line %u", pos->lineno);
+ if (show_column)
+ fprintf(out, ":%u", (unsigned)pos->colno);
+ if (curr_pos == NULL || curr_pos->input_name != pos->input_name)
+ fprintf(out, " of \"%s\"", pos->input_name);
+}
+
+static void fpututf32(utf32 const c, FILE *const out)
+{
+ if (c < 0x80U) {
+ fputc(c, out);
+ } else if (c < 0x800) {
+ fputc(0xC0 | (c >> 6), out);
+ fputc(0x80 | (c & 0x3F), out);
+ } else if (c < 0x10000) {
+ fputc(0xE0 | ( c >> 12), out);
+ fputc(0x80 | ((c >> 6) & 0x3F), out);
+ fputc(0x80 | ( c & 0x3F), out);
+ } else {
+ fputc(0xF0 | ( c >> 18), out);
+ fputc(0x80 | ((c >> 12) & 0x3F), out);
+ fputc(0x80 | ((c >> 6) & 0x3F), out);
+ fputc(0x80 | ( c & 0x3F), out);
+ }
+}
/**
* Issue a diagnostic message.
*/
-static void diagnosticvf(const char *const fmt, va_list ap)
+static void diagnosticvf(char const *fmt, va_list ap)
{
- for (const char* f = fmt; *f != '\0'; ++f) {
- if (*f == '%') {
+ for (char const *f; (f = strchr(fmt, '%')); fmt = f) {
+ fwrite(fmt, sizeof(*fmt), f - fmt, stderr); // Print till '%'.
+ ++f; // Skip '%'.
+
+ bool extended = false;
+ bool flag_zero = false;
+ bool flag_long = false;
+ for (;; ++f) {
+ switch (*f) {
+ case '#': extended = true; break;
+ case '0': flag_zero = true; break;
+ case 'l': flag_long = true; break;
+ default: goto done_flags;
+ }
+ }
+done_flags:;
+
+ int field_width = 0;
+ if (*f == '*') {
++f;
+ field_width = va_arg(ap, int);
+ }
+
+ switch (*f++) {
+ case '%':
+ fputc('%', stderr);
+ break;
- bool extended = false;
- if (*f == '#') {
- extended = true;
- ++f;
+ case 'c': {
+ if (flag_long) {
+ const utf32 val = va_arg(ap, utf32);
+ fpututf32(val, stderr);
+ } else {
+ const unsigned char val = (unsigned char) va_arg(ap, int);
+ fputc(val, stderr);
}
+ break;
+ }
- switch (*f) {
- case '%':
- fputc(*f, stderr);
- break;
-
- case 'C': {
- const wint_t val = va_arg(ap, wint_t);
- fputwc(val, stderr);
- break;
- }
+ case 'd': {
+ const int val = va_arg(ap, int);
+ fprintf(stderr, "%d", val);
+ break;
+ }
- case 'c': {
- const unsigned char val = (unsigned char) va_arg(ap, int);
- fputc(val, stderr);
- break;
- }
+ case 's': {
+ const char* const str = va_arg(ap, const char*);
+ fputs(str, stderr);
+ break;
+ }
- case 'd': {
- const int val = va_arg(ap, int);
- fprintf(stderr, "%d", val);
- break;
- }
+ case 'S': {
+ const string_t *str = va_arg(ap, const string_t*);
+ for (size_t i = 0; i < str->size; ++i) {
+ fputc(str->begin[i], stderr);
+ }
+ break;
+ }
- case 's': {
- const char* const str = va_arg(ap, const char*);
- fputs(str, stderr);
- break;
- }
+ case 'u': {
+ const unsigned int val = va_arg(ap, unsigned int);
+ fprintf(stderr, "%u", val);
+ break;
+ }
- case 'E': {
- const expression_t* const expr = va_arg(ap, const expression_t*);
- print_expression(expr);
- break;
- }
+ case 'X': {
+ unsigned int const val = va_arg(ap, unsigned int);
+ char const *const xfmt = flag_zero ? "%0*X" : "%*X";
+ fprintf(stderr, xfmt, field_width, val);
+ break;
+ }
- case 'Q': {
- const unsigned qualifiers = va_arg(ap, unsigned);
- print_type_qualifiers(qualifiers);
- break;
- }
+ case 'Y': {
+ const symbol_t *const symbol = va_arg(ap, const symbol_t*);
+ if (symbol == NULL)
+ fputs("(null)", stderr);
+ else
+ fputs(symbol->string, stderr);
+ break;
+ }
- case 'T': {
- const type_t* const type = va_arg(ap, const type_t*);
- const symbol_t* sym = NULL;
- if (extended) {
- sym = va_arg(ap, const symbol_t*);
- }
- print_type_ext(type, sym, NULL);
- break;
- }
+ case 'E': {
+ const expression_t* const expr = va_arg(ap, const expression_t*);
+ print_expression(expr);
+ break;
+ }
- case 'K': {
- const token_t* const token = va_arg(ap, const token_t*);
- print_token(stderr, token);
- break;
- }
+ case 'Q': {
+ const unsigned qualifiers = va_arg(ap, unsigned);
+ print_type_qualifiers(qualifiers, QUAL_SEP_NONE);
+ break;
+ }
+
+ case 'T': {
+ const type_t* const type = va_arg(ap, const type_t*);
+ const symbol_t* sym = NULL;
+ if (extended) {
+ sym = va_arg(ap, const symbol_t*);
+ }
+ print_type_ext(type, sym, NULL);
+ break;
+ }
- case 'k': {
- if (extended) {
- bool first = false;
- va_list* toks = va_arg(ap, va_list*);
- const char* const delimiter = va_arg(ap, const char*);
- for (;;) {
- const token_type_t tok = va_arg(*toks, token_type_t);
- if (tok == 0)
- break;
- if (first) {
- first = false;
- } else {
- fputs(delimiter, stderr);
- }
- print_token_type(stderr, tok);
- }
- } else {
- const token_type_t token = va_arg(ap, token_type_t);
- print_token_type(stderr, token);
- }
- break;
+ case 'K': {
+ const token_t* const token = va_arg(ap, const token_t*);
+ print_token(stderr, token);
+ break;
+ }
+
+ case 'k': {
+ if (extended) {
+ va_list* const toks = va_arg(ap, va_list*);
+ separator_t sep = { "", va_arg(ap, const char*) };
+ for (;;) {
+ const token_kind_t tok = (token_kind_t)va_arg(*toks, int);
+ if (tok == 0)
+ break;
+ fputs(sep_next(&sep), stderr);
+ print_token_kind(stderr, tok);
}
+ } else {
+ const token_kind_t token = (token_kind_t)va_arg(ap, int);
+ print_token_kind(stderr, token);
+ }
+ break;
+ }
- default:
- panic("unknown format specifier");
+ case 'N': {
+ entity_t const *const ent = va_arg(ap, entity_t const*);
+ if (extended && is_declaration(ent)) {
+ print_type_ext(ent->declaration.type, ent->base.symbol, NULL);
+ } else {
+ char const *const kind = get_entity_kind_name(ent->kind);
+ symbol_t const *const sym = ent->base.symbol;
+ if (sym) {
+ fprintf(stderr, "%s %s", kind, sym->string);
+ } else {
+ fprintf(stderr, "anonymous %s", kind);
+ }
}
- } else {
- fputc(*f, stderr);
+ break;
+ }
+
+ case 'P': {
+ const position_t *pos = va_arg(ap, const position_t *);
+ print_position(stderr, pos);
+ break;
+ }
+
+ default:
+ panic("unknown format specifier");
}
}
+ fputs(fmt, stderr); // Print rest.
}
void diagnosticf(const char *const fmt, ...)
{
va_list ap;
va_start(ap, fmt);
- ++diagnostic_count;
+ curr_pos = NULL;
diagnosticvf(fmt, ap);
va_end(ap);
}
-void errorf(const source_position_t pos, const char *const fmt, ...)
+static void diagnosticposvf(position_t const *const pos, char const *const kind, char const *const fmt, va_list ap)
+{
+ FILE *const out = stderr;
+ if (pos) {
+ fprintf(out, "%s:", pos->input_name);
+ if (pos->lineno != 0) {
+ fprintf(out, "%u:", pos->lineno);
+ if (show_column)
+ fprintf(out, "%u:", (unsigned)pos->colno);
+ }
+ fputc(' ', out);
+ }
+ fprintf(out, "%s: ", kind);
+ curr_pos = pos;
+ diagnosticvf(fmt, ap);
+}
+
+static void errorvf(const position_t *pos,
+ const char *const fmt, va_list ap)
{
++error_count;
- fprintf(stderr, "%s:%u: error: ", pos.input_name, pos.linenr);
+ diagnosticposvf(pos, "error", fmt, ap);
+ fputc('\n', stderr);
+ if (is_warn_on(WARN_FATAL_ERRORS))
+ exit(EXIT_FAILURE);
+}
+
+void errorf(const position_t *pos, const char *const fmt, ...)
+{
va_list ap;
va_start(ap, fmt);
- diagnosticvf(fmt, ap);
+ errorvf(pos, fmt, ap);
va_end(ap);
- fputc('\n', stderr);
+}
-#ifdef ABORT_ON_ERROR
- abort();
-#endif
+void warningf(warning_t const warn, position_t const* pos, char const *const fmt, ...)
+{
+ if (pos->is_system_header && !is_warn_on(WARN_SYSTEM))
+ return;
+
+ warning_switch_t const *const s = get_warn_switch(warn);
+ switch ((unsigned) s->state) {
+ char const* kind;
+ case WARN_STATE_ON:
+ if (is_warn_on(WARN_ERROR)) {
+ case WARN_STATE_ON | WARN_STATE_ERROR:
+ ++error_count;
+ kind = "error";
+ } else {
+ case WARN_STATE_ON | WARN_STATE_NO_ERROR:
+ ++warning_count;
+ kind = "warning";
+ }
+ va_list ap;
+ va_start(ap, fmt);
+ diagnosticposvf(pos, kind, fmt, ap);
+ va_end(ap);
+ if (diagnostics_show_option)
+ fprintf(stderr, " [-W%s]\n", s->name);
+ else
+ fputc('\n', stderr);
+ break;
+
+ default:
+ break;
+ }
+}
+
+static void internal_errorvf(const position_t *pos,
+ const char *const fmt, va_list ap)
+{
+ diagnosticposvf(pos, "internal error", fmt, ap);
+ fputc('\n', stderr);
}
-void warningf(const source_position_t pos, const char *const fmt, ...)
+void internal_errorf(const position_t *pos, const char *const fmt, ...)
{
- ++warning_count;
- fprintf(stderr, "%s:%u: warning: ", pos.input_name, pos.linenr);
va_list ap;
va_start(ap, fmt);
- diagnosticvf(fmt, ap);
+ internal_errorvf(pos, fmt, ap);
va_end(ap);
- fputc('\n', stderr);
+ abort();
}
projects / cparser / blobdiff