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Move diagnostic_show_locus and friends out into a new source file
gcc/ChangeLog: * Makefile.in (OBJS-libcommon): Add diagnostic-show-locus.o. * diagnostic.c (adjust_line): Move to diagnostic-show-locus.c. (diagnostic_show_locus): Likewise. (diagnostic_print_caret_line): Likewise. * diagnostic-show-locus.c: New file. From-SVN: r227915
This commit is contained in:
David Malcolm
David Malcolm
parent
54f0c25b30
commit
57eb2d70a6
@ -1,3 +1,11 @@
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2015-09-18 David Malcolm <dmalcolm@redhat.com>
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* Makefile.in (OBJS-libcommon): Add diagnostic-show-locus.o.
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* diagnostic.c (adjust_line): Move to diagnostic-show-locus.c.
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(diagnostic_show_locus): Likewise.
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(diagnostic_print_caret_line): Likewise.
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* diagnostic-show-locus.c: New file.
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2015-09-18 David Edelsohn <dje.gcc@gmail.com>
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* dwarf2out.c (switch_to_eh_frame_section): Add ATTRIBUTE_UNUSED to
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@ -1516,7 +1516,8 @@ OBJS = \
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# Objects in libcommon.a, potentially used by all host binaries and with
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# no target dependencies.
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OBJS-libcommon = diagnostic.o diagnostic-color.o pretty-print.o intl.o \
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OBJS-libcommon = diagnostic.o diagnostic-color.o diagnostic-show-locus.o \
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pretty-print.o intl.o \
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vec.o input.o version.o hash-table.o ggc-none.o memory-block.o
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# Objects in libcommon-target.a, used by drivers and by the core
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166
gcc/diagnostic-show-locus.c
Normal file
166
gcc/diagnostic-show-locus.c
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@ -0,0 +1,166 @@
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/* Diagnostic subroutines for printing source-code
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Copyright (C) 1999-2015 Free Software Foundation, Inc.
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Contributed by Gabriel Dos Reis <gdr@codesourcery.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "version.h"
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#include "demangle.h"
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#include "intl.h"
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#include "backtrace.h"
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#include "diagnostic.h"
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#include "diagnostic-color.h"
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#ifdef HAVE_TERMIOS_H
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# include <termios.h>
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#endif
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#ifdef GWINSZ_IN_SYS_IOCTL
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# include <sys/ioctl.h>
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#endif
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/* If LINE is longer than MAX_WIDTH, and COLUMN is not smaller than
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MAX_WIDTH by some margin, then adjust the start of the line such
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that the COLUMN is smaller than MAX_WIDTH minus the margin. The
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margin is either CARET_LINE_MARGIN characters or the difference
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between the column and the length of the line, whatever is smaller.
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The length of LINE is given by LINE_WIDTH. */
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static const char *
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adjust_line (const char *line, int line_width,
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int max_width, int *column_p)
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{
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int right_margin = CARET_LINE_MARGIN;
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int column = *column_p;
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gcc_checking_assert (line_width >= column);
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right_margin = MIN (line_width - column, right_margin);
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right_margin = max_width - right_margin;
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if (line_width >= max_width && column > right_margin)
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{
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line += column - right_margin;
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*column_p = right_margin;
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}
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return line;
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}
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/* Print the physical source line corresponding to the location of
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this diagnostic, and a caret indicating the precise column. This
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function only prints two caret characters if the two locations
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given by DIAGNOSTIC are on the same line according to
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diagnostic_same_line(). */
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void
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diagnostic_show_locus (diagnostic_context * context,
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const diagnostic_info *diagnostic)
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{
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if (!context->show_caret
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|| diagnostic_location (diagnostic, 0) <= BUILTINS_LOCATION
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|| diagnostic_location (diagnostic, 0) == context->last_location)
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return;
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context->last_location = diagnostic_location (diagnostic, 0);
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expanded_location s0 = diagnostic_expand_location (diagnostic, 0);
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expanded_location s1 = { };
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/* Zero-initialized. This is checked later by diagnostic_print_caret_line. */
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if (diagnostic_location (diagnostic, 1) > BUILTINS_LOCATION)
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s1 = diagnostic_expand_location (diagnostic, 1);
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diagnostic_print_caret_line (context, s0, s1,
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context->caret_chars[0],
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context->caret_chars[1]);
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}
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/* Print (part) of the source line given by xloc1 with caret1 pointing
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at the column. If xloc2.column != 0 and it fits within the same
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line as xloc1 according to diagnostic_same_line (), then caret2 is
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printed at xloc2.colum. Otherwise, the caller has to set up things
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to print a second caret line for xloc2. */
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void
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diagnostic_print_caret_line (diagnostic_context * context,
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expanded_location xloc1,
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expanded_location xloc2,
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char caret1, char caret2)
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{
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if (!diagnostic_same_line (context, xloc1, xloc2))
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/* This will mean ignore xloc2. */
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xloc2.column = 0;
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else if (xloc1.column == xloc2.column)
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xloc2.column++;
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int cmax = MAX (xloc1.column, xloc2.column);
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int line_width;
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const char *line = location_get_source_line (xloc1.file, xloc1.line,
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&line_width);
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if (line == NULL || cmax > line_width)
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return;
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/* Center the interesting part of the source line to fit in
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max_width, and adjust all columns accordingly. */
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int max_width = context->caret_max_width;
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int offset = (int) cmax;
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line = adjust_line (line, line_width, max_width, &offset);
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offset -= cmax;
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cmax += offset;
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xloc1.column += offset;
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if (xloc2.column)
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xloc2.column += offset;
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/* Print the source line. */
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pp_newline (context->printer);
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const char *saved_prefix = pp_get_prefix (context->printer);
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pp_set_prefix (context->printer, NULL);
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pp_space (context->printer);
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while (max_width > 0 && line_width > 0)
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{
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char c = *line == '\t' ? ' ' : *line;
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if (c == '\0')
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c = ' ';
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pp_character (context->printer, c);
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max_width--;
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line_width--;
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line++;
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}
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pp_newline (context->printer);
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/* Print the caret under the line. */
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const char *caret_cs, *caret_ce;
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caret_cs = colorize_start (pp_show_color (context->printer), "caret");
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caret_ce = colorize_stop (pp_show_color (context->printer));
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int cmin = xloc2.column
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? MIN (xloc1.column, xloc2.column) : xloc1.column;
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int caret_min = cmin == xloc1.column ? caret1 : caret2;
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int caret_max = cmin == xloc1.column ? caret2 : caret1;
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/* cmin is >= 1, but we indent with an extra space at the start like
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we did above. */
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int i;
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for (i = 0; i < cmin; i++)
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pp_space (context->printer);
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pp_printf (context->printer, "%s%c%s", caret_cs, caret_min, caret_ce);
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if (xloc2.column)
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{
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for (i++; i < cmax; i++)
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pp_space (context->printer);
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pp_printf (context->printer, "%s%c%s", caret_cs, caret_max, caret_ce);
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}
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pp_set_prefix (context->printer, saved_prefix);
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pp_needs_newline (context->printer) = true;
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}
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129
gcc/diagnostic.c
129
gcc/diagnostic.c
@ -307,135 +307,6 @@ diagnostic_build_prefix (diagnostic_context *context,
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locus_ce, text_cs, text, text_ce));
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}
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/* If LINE is longer than MAX_WIDTH, and COLUMN is not smaller than
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MAX_WIDTH by some margin, then adjust the start of the line such
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that the COLUMN is smaller than MAX_WIDTH minus the margin. The
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margin is either CARET_LINE_MARGIN characters or the difference
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between the column and the length of the line, whatever is smaller.
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The length of LINE is given by LINE_WIDTH. */
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static const char *
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adjust_line (const char *line, int line_width,
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int max_width, int *column_p)
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{
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int right_margin = CARET_LINE_MARGIN;
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int column = *column_p;
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gcc_checking_assert (line_width >= column);
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right_margin = MIN (line_width - column, right_margin);
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right_margin = max_width - right_margin;
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if (line_width >= max_width && column > right_margin)
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{
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line += column - right_margin;
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*column_p = right_margin;
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}
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return line;
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}
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/* Print the physical source line corresponding to the location of
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this diagnostic, and a caret indicating the precise column. This
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function only prints two caret characters if the two locations
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given by DIAGNOSTIC are on the same line according to
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diagnostic_same_line(). */
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void
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diagnostic_show_locus (diagnostic_context * context,
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const diagnostic_info *diagnostic)
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{
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if (!context->show_caret
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|| diagnostic_location (diagnostic, 0) <= BUILTINS_LOCATION
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|| diagnostic_location (diagnostic, 0) == context->last_location)
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return;
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context->last_location = diagnostic_location (diagnostic, 0);
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expanded_location s0 = diagnostic_expand_location (diagnostic, 0);
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expanded_location s1 = { };
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/* Zero-initialized. This is checked later by diagnostic_print_caret_line. */
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if (diagnostic_location (diagnostic, 1) > BUILTINS_LOCATION)
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s1 = diagnostic_expand_location (diagnostic, 1);
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diagnostic_print_caret_line (context, s0, s1,
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context->caret_chars[0],
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context->caret_chars[1]);
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}
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/* Print (part) of the source line given by xloc1 with caret1 pointing
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at the column. If xloc2.column != 0 and it fits within the same
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line as xloc1 according to diagnostic_same_line (), then caret2 is
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printed at xloc2.colum. Otherwise, the caller has to set up things
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to print a second caret line for xloc2. */
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void
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diagnostic_print_caret_line (diagnostic_context * context,
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expanded_location xloc1,
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expanded_location xloc2,
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char caret1, char caret2)
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{
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if (!diagnostic_same_line (context, xloc1, xloc2))
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/* This will mean ignore xloc2. */
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xloc2.column = 0;
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else if (xloc1.column == xloc2.column)
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xloc2.column++;
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int cmax = MAX (xloc1.column, xloc2.column);
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int line_width;
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const char *line = location_get_source_line (xloc1.file, xloc1.line,
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&line_width);
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if (line == NULL || cmax > line_width)
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return;
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/* Center the interesting part of the source line to fit in
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max_width, and adjust all columns accordingly. */
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int max_width = context->caret_max_width;
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int offset = (int) cmax;
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line = adjust_line (line, line_width, max_width, &offset);
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offset -= cmax;
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cmax += offset;
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xloc1.column += offset;
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if (xloc2.column)
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xloc2.column += offset;
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/* Print the source line. */
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pp_newline (context->printer);
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const char *saved_prefix = pp_get_prefix (context->printer);
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pp_set_prefix (context->printer, NULL);
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pp_space (context->printer);
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while (max_width > 0 && line_width > 0)
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{
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char c = *line == '\t' ? ' ' : *line;
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if (c == '\0')
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c = ' ';
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pp_character (context->printer, c);
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max_width--;
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line_width--;
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line++;
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}
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pp_newline (context->printer);
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/* Print the caret under the line. */
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const char *caret_cs, *caret_ce;
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caret_cs = colorize_start (pp_show_color (context->printer), "caret");
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caret_ce = colorize_stop (pp_show_color (context->printer));
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int cmin = xloc2.column
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? MIN (xloc1.column, xloc2.column) : xloc1.column;
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int caret_min = cmin == xloc1.column ? caret1 : caret2;
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int caret_max = cmin == xloc1.column ? caret2 : caret1;
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/* cmin is >= 1, but we indent with an extra space at the start like
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we did above. */
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int i;
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for (i = 0; i < cmin; i++)
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pp_space (context->printer);
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pp_printf (context->printer, "%s%c%s", caret_cs, caret_min, caret_ce);
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if (xloc2.column)
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{
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for (i++; i < cmax; i++)
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pp_space (context->printer);
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pp_printf (context->printer, "%s%c%s", caret_cs, caret_max, caret_ce);
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}
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pp_set_prefix (context->printer, saved_prefix);
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pp_needs_newline (context->printer) = true;
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}
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/* Functions at which to stop the backtrace print. It's not
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particularly helpful to print the callers of these functions. */
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