+++ /dev/null
-/* ------------------------------------------------------------------------- */
-/* "errors" : Warnings, errors and fatal errors */
-/* (with error throwback code for RISC OS machines) */
-/* */
-/* Copyright (c) Graham Nelson 1993 - 2018 */
-/* */
-/* This file is part of Inform. */
-/* */
-/* Inform 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 3 of the License, or */
-/* (at your option) any later version. */
-/* */
-/* Inform 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 Inform. If not, see https://gnu.org/licenses/ */
-/* */
-/* ------------------------------------------------------------------------- */
-
-#include "header.h"
-
-#define ERROR_BUFLEN (256)
-static char error_message_buff[ERROR_BUFLEN+4]; /* room for ellipsis */
-
-/* ------------------------------------------------------------------------- */
-/* Error preamble printing. */
-/* ------------------------------------------------------------------------- */
-
-ErrorPosition ErrorReport; /* Maintained by "lexer.c" */
-
-static void print_preamble(void)
-{
- /* Only really prints the preamble to an error or warning message:
-
- e.g. "jigsaw.apollo", line 24:
-
- The format is controllable (from an ICL switch) since this assists
- the working of some development environments. */
-
- int j, with_extension_flag = FALSE; char *p;
-
- j = ErrorReport.file_number;
- if (j <= 0 || j > total_files) p = ErrorReport.source;
- else p = InputFiles[j-1].filename;
-
- if (!p) p = "";
-
- switch(error_format)
- {
- case 0: /* RISC OS error message format */
-
- if (!(ErrorReport.main_flag)) printf("\"%s\", ", p);
- printf("line %d: ", ErrorReport.line_number);
- if (ErrorReport.orig_file) {
- char *op;
- if (ErrorReport.orig_file <= 0 || ErrorReport.orig_file > total_files)
- op = ErrorReport.orig_source;
- else
- op = InputFiles[ErrorReport.orig_file-1].filename;
- printf("(\"%s\"", op);
- if (ErrorReport.orig_line) {
- printf(", %d", ErrorReport.orig_line);
- if (ErrorReport.orig_char) {
- printf(":%d", ErrorReport.orig_char);
- }
- }
- printf("): ");
- }
- break;
-
- case 1: /* Microsoft error message format */
-
- for (j=0; p[j]!=0; j++)
- { if (p[j] == FN_SEP) with_extension_flag = TRUE;
- if (p[j] == '.') with_extension_flag = FALSE;
- }
- printf("%s", p);
- if (with_extension_flag) printf("%s", Source_Extension);
- printf("(%d): ", ErrorReport.line_number);
- break;
-
- case 2: /* Macintosh Programmer's Workshop error message format */
-
- printf("File \"%s\"; Line %d\t# ", p, ErrorReport.line_number);
- break;
- }
-}
-
-static void ellipsize_error_message_buff(void)
-{
- /* If the error buffer was actually filled up by a message, it was
- probably truncated too. Add an ellipsis, for which we left
- extra room. (Yes, yes; errors that are *exactly* 255 characters
- long will suffer an unnecessary ellipsis.) */
- if (strlen(error_message_buff) == ERROR_BUFLEN-1)
- strcat(error_message_buff, "...");
-}
-
-/* ------------------------------------------------------------------------- */
-/* Fatal errors (which have style 0) */
-/* ------------------------------------------------------------------------- */
-
-extern void fatalerror(char *s)
-{ print_preamble();
-
- printf("Fatal error: %s\n",s);
- if (no_compiler_errors > 0) print_sorry_message();
-
-#ifdef ARC_THROWBACK
- throwback(0, s);
- throwback_end();
-#endif
-#ifdef MAC_FACE
- close_all_source();
- if (temporary_files_switch) remove_temp_files();
- abort_transcript_file();
- free_arrays();
- if (store_the_text)
- my_free(&all_text,"transcription text");
- longjmp(g_fallback, 1);
-#endif
- exit(1);
-}
-
-extern void fatalerror_named(char *m, char *fn)
-{ snprintf(error_message_buff, ERROR_BUFLEN, "%s \"%s\"", m, fn);
- ellipsize_error_message_buff();
- fatalerror(error_message_buff);
-}
-
-extern void memory_out_error(int32 size, int32 howmany, char *name)
-{ if (howmany == 1)
- snprintf(error_message_buff, ERROR_BUFLEN,
- "Run out of memory allocating %d bytes for %s", size, name);
- else
- snprintf(error_message_buff, ERROR_BUFLEN,
- "Run out of memory allocating array of %dx%d bytes for %s",
- howmany, size, name);
- ellipsize_error_message_buff();
- fatalerror(error_message_buff);
-}
-
-extern void memoryerror(char *s, int32 size)
-{
- snprintf(error_message_buff, ERROR_BUFLEN,
- "The memory setting %s (which is %ld at present) has been \
-exceeded. Try running Inform again with $%s=<some-larger-number> on the \
-command line.",s,(long int) size,s);
- ellipsize_error_message_buff();
- fatalerror(error_message_buff);
-}
-
-/* ------------------------------------------------------------------------- */
-/* Survivable diagnostics: */
-/* compilation errors style 1 */
-/* warnings style 2 */
-/* linkage errors style 3 */
-/* compiler errors style 4 (these should never happen and */
-/* indicate a bug in Inform) */
-/* ------------------------------------------------------------------------- */
-
-static int errors[MAX_ERRORS];
-
-int no_errors, no_warnings, no_suppressed_warnings, no_link_errors,
- no_compiler_errors;
-
-char *forerrors_buff;
-int forerrors_pointer;
-
-static void message(int style, char *s)
-{ int throw_style = style;
- if (hash_printed_since_newline) printf("\n");
- hash_printed_since_newline = FALSE;
- print_preamble();
- switch(style)
- { case 1: printf("Error: "); no_errors++; break;
- case 2: printf("Warning: "); no_warnings++; break;
- case 3: printf("Error: [linking '%s'] ", current_module_filename);
- no_link_errors++; no_errors++; throw_style=1; break;
- case 4: printf("*** Compiler error: ");
- no_compiler_errors++; throw_style=1; break;
- }
- printf(" %s\n", s);
-#ifdef ARC_THROWBACK
- throwback(throw_style, s);
-#endif
-#ifdef MAC_FACE
- ProcessEvents (&g_proc);
- if (g_proc != true)
- { free_arrays();
- if (store_the_text)
- my_free(&all_text,"transcription text");
- close_all_source ();
- if (temporary_files_switch) remove_temp_files();
- abort_transcript_file();
- longjmp (g_fallback, 1);
- }
-#endif
- if ((!concise_switch) && (forerrors_pointer > 0) && (style <= 2))
- { forerrors_buff[forerrors_pointer] = 0;
- sprintf(forerrors_buff+68," ...etc");
- printf("> %s\n",forerrors_buff);
- }
-}
-
-/* ------------------------------------------------------------------------- */
-/* Style 1: Error message routines */
-/* ------------------------------------------------------------------------- */
-
-extern void error(char *s)
-{ if (no_errors == MAX_ERRORS)
- fatalerror("Too many errors: giving up");
- errors[no_errors] = no_syntax_lines;
- message(1,s);
-}
-
-extern void error_named(char *s1, char *s2)
-{ snprintf(error_message_buff, ERROR_BUFLEN,"%s \"%s\"",s1,s2);
- ellipsize_error_message_buff();
- error(error_message_buff);
-}
-
-extern void error_numbered(char *s1, int val)
-{
- snprintf(error_message_buff, ERROR_BUFLEN,"%s %d.",s1,val);
- ellipsize_error_message_buff();
- error(error_message_buff);
-}
-
-extern void error_named_at(char *s1, char *s2, brief_location report_line)
-{ int i;
-
- ErrorPosition E = ErrorReport;
- export_brief_location(report_line, &ErrorReport);
-
- snprintf(error_message_buff, ERROR_BUFLEN,"%s \"%s\"",s1,s2);
- ellipsize_error_message_buff();
-
- i = concise_switch; concise_switch = TRUE;
- error(error_message_buff);
- ErrorReport = E; concise_switch = i;
-}
-
-extern void no_such_label(char *lname)
-{ error_named("No such label as",lname);
-}
-
-extern void ebf_error(char *s1, char *s2)
-{ snprintf(error_message_buff, ERROR_BUFLEN, "Expected %s but found %s", s1, s2);
- ellipsize_error_message_buff();
- error(error_message_buff);
-}
-
-extern void char_error(char *s, int ch)
-{ int32 uni;
-
- uni = iso_to_unicode(ch);
-
- if (character_set_unicode)
- snprintf(error_message_buff, ERROR_BUFLEN, "%s (unicode) $%04x", s, uni);
- else if (uni >= 0x100)
- { snprintf(error_message_buff, ERROR_BUFLEN,
- "%s (unicode) $%04x = (ISO %s) $%02x", s, uni,
- name_of_iso_set(character_set_setting), ch);
- }
- else
- snprintf(error_message_buff, ERROR_BUFLEN, "%s (ISO Latin1) $%02x", s, uni);
-
- /* If the character set is set to Latin-1, and the char in question
- is a printable Latin-1 character, we print it in the error message.
- This conflates the source-text charset with the terminal charset,
- really, but it's not a big deal. */
-
- if (((uni>=32) && (uni<127))
- || (((uni >= 0xa1) && (uni <= 0xff))
- && (character_set_setting==1) && (!character_set_unicode)))
- { int curlen = strlen(error_message_buff);
- snprintf(error_message_buff+curlen, ERROR_BUFLEN-curlen,
- ", i.e., '%c'", uni);
- }
-
- ellipsize_error_message_buff();
- error(error_message_buff);
-}
-
-extern void unicode_char_error(char *s, int32 uni)
-{
- if (uni >= 0x100)
- snprintf(error_message_buff, ERROR_BUFLEN, "%s (unicode) $%04x", s, uni);
- else
- snprintf(error_message_buff, ERROR_BUFLEN, "%s (ISO Latin1) $%02x", s, uni);
-
- /* See comment above. */
-
- if (((uni>=32) && (uni<127))
- || (((uni >= 0xa1) && (uni <= 0xff))
- && (character_set_setting==1) && (!character_set_unicode)))
- { int curlen = strlen(error_message_buff);
- snprintf(error_message_buff+curlen, ERROR_BUFLEN-curlen,
- ", i.e., '%c'", uni);
- }
-
- ellipsize_error_message_buff();
- error(error_message_buff);
-}
-
-/* ------------------------------------------------------------------------- */
-/* Style 2: Warning message routines */
-/* ------------------------------------------------------------------------- */
-
-extern void warning(char *s1)
-{ if (nowarnings_switch) { no_suppressed_warnings++; return; }
- message(2,s1);
-}
-
-extern void warning_numbered(char *s1, int val)
-{ if (nowarnings_switch) { no_suppressed_warnings++; return; }
- snprintf(error_message_buff, ERROR_BUFLEN,"%s %d.", s1, val);
- ellipsize_error_message_buff();
- message(2,error_message_buff);
-}
-
-extern void warning_named(char *s1, char *s2)
-{
- if (nowarnings_switch) { no_suppressed_warnings++; return; }
- snprintf(error_message_buff, ERROR_BUFLEN,"%s \"%s\"", s1, s2);
- ellipsize_error_message_buff();
- message(2,error_message_buff);
-}
-
-extern void dbnu_warning(char *type, char *name, brief_location report_line)
-{ int i;
- ErrorPosition E = ErrorReport;
- if (nowarnings_switch) { no_suppressed_warnings++; return; }
- export_brief_location(report_line, &ErrorReport);
- snprintf(error_message_buff, ERROR_BUFLEN, "%s \"%s\" declared but not used", type, name);
- ellipsize_error_message_buff();
- i = concise_switch; concise_switch = TRUE;
- message(2,error_message_buff);
- concise_switch = i;
- ErrorReport = E;
-}
-
-extern void uncalled_routine_warning(char *type, char *name, brief_location report_line)
-{ int i;
- /* This is called for functions which have been detected by the
- track-unused-routines module. These will often (but not always)
- be also caught by dbnu_warning(), which tracks symbols rather
- than routine addresses. */
- ErrorPosition E = ErrorReport;
- if (nowarnings_switch) { no_suppressed_warnings++; return; }
- export_brief_location(report_line, &ErrorReport);
- if (OMIT_UNUSED_ROUTINES)
- snprintf(error_message_buff, ERROR_BUFLEN, "%s \"%s\" unused and omitted", type, name);
- else
- snprintf(error_message_buff, ERROR_BUFLEN, "%s \"%s\" unused (not omitted)", type, name);
- ellipsize_error_message_buff();
- i = concise_switch; concise_switch = TRUE;
- message(2,error_message_buff);
- concise_switch = i;
- ErrorReport = E;
-}
-
-extern void obsolete_warning(char *s1)
-{ if (is_systemfile()==1) return;
- if (obsolete_switch || nowarnings_switch)
- { no_suppressed_warnings++; return; }
- snprintf(error_message_buff, ERROR_BUFLEN, "Obsolete usage: %s",s1);
- ellipsize_error_message_buff();
- message(2,error_message_buff);
-}
-
-/* ------------------------------------------------------------------------- */
-/* Style 3: Link error message routines */
-/* ------------------------------------------------------------------------- */
-
-extern void link_error(char *s)
-{ if (no_errors==MAX_ERRORS) fatalerror("Too many errors: giving up");
- errors[no_errors] = no_syntax_lines;
- message(3,s);
-}
-
-extern void link_error_named(char *s1, char *s2)
-{ snprintf(error_message_buff, ERROR_BUFLEN,"%s \"%s\"",s1,s2);
- ellipsize_error_message_buff();
- link_error(error_message_buff);
-}
-
-/* ------------------------------------------------------------------------- */
-/* Style 4: Compiler error message routines */
-/* ------------------------------------------------------------------------- */
-
-extern void print_sorry_message(void)
-{ printf(
-"***********************************************************************\n\
-* 'Compiler errors' should never occur if Inform is working properly. *\n\
-* This is version %d.%02d of Inform, dated %20s: so *\n\
-* if that was more than six months ago, there may be a more recent *\n\
-* version available, from which the problem may have been removed. *\n\
-* If not, please report this fault to: graham@gnelson.demon.co.uk *\n\
-* and if at all possible, please include your source code, as faults *\n\
-* such as these are rare and often difficult to reproduce. Sorry. *\n\
-***********************************************************************\n",
- (RELEASE_NUMBER/100)%10, RELEASE_NUMBER%100, RELEASE_DATE);
-}
-
-extern int compiler_error(char *s)
-{ if (no_link_errors > 0) return FALSE;
- if (no_errors > 0) return FALSE;
- if (no_compiler_errors==MAX_ERRORS)
- fatalerror("Too many compiler errors: giving up");
- message(4,s);
- return TRUE;
-}
-
-extern int compiler_error_named(char *s1, char *s2)
-{ if (no_link_errors > 0) return FALSE;
- if (no_errors > 0) return FALSE;
- snprintf(error_message_buff, ERROR_BUFLEN, "%s \"%s\"",s1,s2);
- ellipsize_error_message_buff();
- compiler_error(error_message_buff);
- return TRUE;
-}
-
-/* ------------------------------------------------------------------------- */
-/* Code for the Acorn RISC OS operating system, donated by Robin Watts, */
-/* to provide error throwback under the DDE environment */
-/* ------------------------------------------------------------------------- */
-
-#ifdef ARC_THROWBACK
-
-#define DDEUtils_ThrowbackStart 0x42587
-#define DDEUtils_ThrowbackSend 0x42588
-#define DDEUtils_ThrowbackEnd 0x42589
-
-#include "kernel.h"
-
-extern void throwback_start(void)
-{ _kernel_swi_regs regs;
- if (throwback_switch)
- _kernel_swi(DDEUtils_ThrowbackStart, ®s, ®s);
-}
-
-extern void throwback_end(void)
-{ _kernel_swi_regs regs;
- if (throwback_switch)
- _kernel_swi(DDEUtils_ThrowbackEnd, ®s, ®s);
-}
-
-int throwback_started = FALSE;
-
-extern void throwback(int severity, char * error)
-{ _kernel_swi_regs regs;
- if (!throwback_started)
- { throwback_started = TRUE;
- throwback_start();
- }
- if (throwback_switch)
- { regs.r[0] = 1;
- if ((ErrorReport.file_number == -1)
- || (ErrorReport.file_number == 0))
- regs.r[2] = (int) (InputFiles[0].filename);
- else regs.r[2] = (int) (InputFiles[ErrorReport.file_number-1].filename);
- regs.r[3] = ErrorReport.line_number;
- regs.r[4] = (2-severity);
- regs.r[5] = (int) error;
- _kernel_swi(DDEUtils_ThrowbackSend, ®s, ®s);
- }
-}
-
-#endif
-
-/* ========================================================================= */
-/* Data structure management routines */
-/* ------------------------------------------------------------------------- */
-
-extern void init_errors_vars(void)
-{ forerrors_buff = NULL;
- no_errors = 0; no_warnings = 0; no_suppressed_warnings = 0;
- no_compiler_errors = 0;
-}
-
-extern void errors_begin_pass(void)
-{ ErrorReport.line_number = 0;
- ErrorReport.file_number = -1;
- ErrorReport.source = "<no text read yet>";
- ErrorReport.main_flag = FALSE;
- ErrorReport.orig_source = NULL;
- ErrorReport.orig_file = 0;
- ErrorReport.orig_line = 0;
- ErrorReport.orig_char = 0;
-}
-
-extern void errors_allocate_arrays(void)
-{ forerrors_buff = my_malloc(512, "errors buffer");
-}
-
-extern void errors_free_arrays(void)
-{ my_free(&forerrors_buff, "errors buffer");
-}
-
-/* ========================================================================= */
projects / inform.git / blobdiff