X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=diagnostic.c;h=0ca3df124be4edac793949022430f8991e234118;hb=d7384b0b065dd6195ac6649c4d48a06905bc8fe7;hp=952bf19eb8e51db1811f6678788b0d19ba0e6766;hpb=454eb435e0b2813b55b2dbd2bc8ff36076d9b277;p=cparser

diff --git a/diagnostic.c b/diagnostic.c
index 952bf19..0ca3df1 100644
--- a/diagnostic.c
+++ b/diagnostic.c
@@ -1,33 +1,322 @@
+/*
+ * This file is part of cparser.
+ * Copyright (C) 2007-2009 Matthias Braun <matze@braunis.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
 #include <stdarg.h>
 #include <stdio.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"
 
+/** Number of occurred errors. */
+unsigned error_count             = 0;
+/** Number of occurred warnings. */
+unsigned warning_count           = 0;
+bool     show_column             = true;
+bool     diagnostics_show_option = true;
 
-void parser_print_prefix_pos(const source_position_t pos)
+static const source_position_t *curr_pos = NULL;
+
+/**
+ * prints an additional source position
+ */
+static void print_source_position(FILE *out, const source_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(char const *fmt, va_list ap)
+{
+	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;
+
+		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;
+		}
+
+		case 'd': {
+			const int val = va_arg(ap, int);
+			fprintf(stderr, "%d", val);
+			break;
+		}
+
+		case 's': {
+			const char* const str = va_arg(ap, const char*);
+			fputs(str, stderr);
+			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 'u': {
+			const unsigned int val = va_arg(ap, unsigned int);
+			fprintf(stderr, "%u", val);
+			break;
+		}
+
+		case 'X': {
+			unsigned int const val = va_arg(ap, unsigned int);
+			char const  *const fmt = flag_zero ? "%0*X" : "%*X";
+			fprintf(stderr, fmt, field_width, val);
+			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 'E': {
+			const expression_t* const expr = va_arg(ap, const expression_t*);
+			print_expression(expr);
+			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': {
+			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;
+		}
+
+		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);
+				}
+			}
+			break;
+		}
+
+		case 'P': {
+			const source_position_t *pos = va_arg(ap, const source_position_t *);
+			print_source_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);
+	curr_pos = NULL;
+	diagnosticvf(fmt, ap);
+	va_end(ap);
+}
+
+static void diagnosticposvf(source_position_t const *const pos, char const *const kind, char const *const fmt, va_list ap)
 {
-	fprintf(stderr, "%s:%u: ", pos.input_name, pos.linenr);
+	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);
 }
 
-void parser_print_warning_prefix_pos(const source_position_t pos)
+static void errorvf(const source_position_t *pos,
+                    const char *const fmt, va_list ap)
 {
-	parser_print_prefix_pos(pos);
-	fputs("warning: ", stderr);
+	++error_count;
+	diagnosticposvf(pos, "error", fmt, ap);
+	fputc('\n', stderr);
+	if (is_warn_on(WARN_FATAL_ERRORS))
+		exit(EXIT_FAILURE);
 }
 
-void parse_warning_pos(const source_position_t pos, const char *const message)
+void errorf(const source_position_t *pos, const char *const fmt, ...)
 {
-	parser_print_prefix_pos(pos);
-	fprintf(stderr, "warning: %s\n", message);
+	va_list ap;
+	va_start(ap, fmt);
+	errorvf(pos, fmt, ap);
+	va_end(ap);
 }
 
-void parse_warning_posf(const source_position_t pos, const char *const fmt, ...)
+void warningf(warning_t const warn, source_position_t const* pos, char const *const fmt, ...)
 {
-	parser_print_prefix_pos(pos);
-	fputs("warning: ", stderr);
 	va_list ap;
 	va_start(ap, fmt);
-	vfprintf(stderr, fmt, ap);
+	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";
+			}
+			diagnosticposvf(pos, kind, fmt, ap);
+			if (diagnostics_show_option)
+				fprintf(stderr, " [-W%s]\n", s->name);
+			else
+				fputc('\n', stderr);
+			break;
+
+		default:
+			break;
+	}
 	va_end(ap);
+}
+
+static void internal_errorvf(const source_position_t *pos,
+                    const char *const fmt, va_list ap)
+{
+	diagnosticposvf(pos, "internal error", fmt, ap);
 	fputc('\n', stderr);
 }
+
+void internal_errorf(const source_position_t *pos, const char *const fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	internal_errorvf(pos, fmt, ap);
+	va_end(ap);
+	abort();
+}