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glib/gobject/glib-genmarshal.c
Colin Walters 6e64ba58b9 Switch all open() calls to use g_open() 
Because it now handles EINTR.  And we should do so.  While most people
use Linux, which tries very hard to avoid propagating EINTR back up
into userspace, it can still happen.

https://bugzilla.gnome.org/show_bug.cgi?id=682833
2012-08-28 13:56:59 -04:00

1084 lines
35 KiB
C
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/* GLIB-GenMarshal - Marshaller generator for GObject library
* Copyright (C) 2000-2001 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <glib/gstdio.h>
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "GLib-Genmarshal"
#include <glib.h>
#include <glib/gprintf.h>
#ifdef G_OS_WIN32
#include <io.h>
#endif
/* --- defines --- */
#define PRG_NAME "glib-genmarshal"
#define PKG_NAME "GLib"
#define PKG_HTTP_HOME "http://www.gtk.org"
/* --- typedefs & structures --- */
typedef struct
{
gchar *keyword; /* marhaller list keyword [MY_STRING] */
const gchar *sig_name; /* signature name [STRING] */
const gchar *ctype; /* C type name [gchar*] */
const gchar *promoted_ctype; /* promoted C type name [gchar*] */
const gchar *getter; /* value getter function [g_value_get_string] */
const gchar *box; /* value box function [g_strdup] */
const gchar *unbox; /* value unbox function [g_free] */
gboolean box_ignores_static; /* Wether the box/unbox functions ignore the static_scope */
gboolean box_takes_type; /* Wether the box/unbox functions take a type arg */
} InArgument;
typedef struct
{
gchar *keyword; /* marhaller list keyword [MY_STRING] */
const gchar *sig_name; /* signature name [STRING] */
const gchar *ctype; /* C type name [gchar*] */
const gchar *setter; /* value setter function [g_value_set_string] */
} OutArgument;
typedef struct
{
gchar *ploc;
OutArgument *rarg;
GList *args; /* of type InArgument* */
} Signature;
/* --- prototypes --- */
static void parse_args (gint *argc_p,
gchar ***argv_p);
static void print_blurb (FILE *bout,
gboolean print_help);
/* --- variables --- */
static const GScannerConfig scanner_config_template =
{
(
" \t\r" /* "\n" is statement delimiter */
) /* cset_skip_characters */,
(
G_CSET_a_2_z
"_"
G_CSET_A_2_Z
) /* cset_identifier_first */,
(
G_CSET_a_2_z
"_0123456789"
G_CSET_A_2_Z
) /* cset_identifier_nth */,
( "#\n" ) /* cpair_comment_single */,
FALSE /* case_sensitive */,
TRUE /* skip_comment_multi */,
TRUE /* skip_comment_single */,
TRUE /* scan_comment_multi */,
TRUE /* scan_identifier */,
FALSE /* scan_identifier_1char */,
FALSE /* scan_identifier_NULL */,
TRUE /* scan_symbols */,
FALSE /* scan_binary */,
TRUE /* scan_octal */,
TRUE /* scan_float */,
TRUE /* scan_hex */,
FALSE /* scan_hex_dollar */,
TRUE /* scan_string_sq */,
TRUE /* scan_string_dq */,
TRUE /* numbers_2_int */,
FALSE /* int_2_float */,
FALSE /* identifier_2_string */,
TRUE /* char_2_token */,
FALSE /* symbol_2_token */,
FALSE /* scope_0_fallback */,
};
static gchar * const std_marshaller_prefix = "g_cclosure_marshal";
static gchar *marshaller_prefix = "g_cclosure_user_marshal";
static GHashTable *marshallers = NULL;
static FILE *fout = NULL;
static gboolean gen_cheader = FALSE;
static gboolean gen_cbody = FALSE;
static gboolean gen_internal = FALSE;
static gboolean gen_valist = FALSE;
static gboolean skip_ploc = FALSE;
static gboolean std_includes = TRUE;
static gint exit_status = 0;
/* --- functions --- */
static void
put_marshal_value_getters (void)
{
fputs ("\n", fout);
fputs ("#ifdef G_ENABLE_DEBUG\n", fout);
fputs ("#define g_marshal_value_peek_boolean(v) g_value_get_boolean (v)\n", fout);
fputs ("#define g_marshal_value_peek_char(v) g_value_get_schar (v)\n", fout);
fputs ("#define g_marshal_value_peek_uchar(v) g_value_get_uchar (v)\n", fout);
fputs ("#define g_marshal_value_peek_int(v) g_value_get_int (v)\n", fout);
fputs ("#define g_marshal_value_peek_uint(v) g_value_get_uint (v)\n", fout);
fputs ("#define g_marshal_value_peek_long(v) g_value_get_long (v)\n", fout);
fputs ("#define g_marshal_value_peek_ulong(v) g_value_get_ulong (v)\n", fout);
fputs ("#define g_marshal_value_peek_int64(v) g_value_get_int64 (v)\n", fout);
fputs ("#define g_marshal_value_peek_uint64(v) g_value_get_uint64 (v)\n", fout);
fputs ("#define g_marshal_value_peek_enum(v) g_value_get_enum (v)\n", fout);
fputs ("#define g_marshal_value_peek_flags(v) g_value_get_flags (v)\n", fout);
fputs ("#define g_marshal_value_peek_float(v) g_value_get_float (v)\n", fout);
fputs ("#define g_marshal_value_peek_double(v) g_value_get_double (v)\n", fout);
fputs ("#define g_marshal_value_peek_string(v) (char*) g_value_get_string (v)\n", fout);
fputs ("#define g_marshal_value_peek_param(v) g_value_get_param (v)\n", fout);
fputs ("#define g_marshal_value_peek_boxed(v) g_value_get_boxed (v)\n", fout);
fputs ("#define g_marshal_value_peek_pointer(v) g_value_get_pointer (v)\n", fout);
fputs ("#define g_marshal_value_peek_object(v) g_value_get_object (v)\n", fout);
fputs ("#define g_marshal_value_peek_variant(v) g_value_get_variant (v)\n", fout);
fputs ("#else /* !G_ENABLE_DEBUG */\n", fout);
fputs ("/* WARNING: This code accesses GValues directly, which is UNSUPPORTED API.\n", fout);
fputs (" * Do not access GValues directly in your code. Instead, use the\n", fout);
fputs (" * g_value_get_*() functions\n", fout);
fputs (" */\n", fout);
fputs ("#define g_marshal_value_peek_boolean(v) (v)->data[0].v_int\n", fout);
fputs ("#define g_marshal_value_peek_char(v) (v)->data[0].v_int\n", fout);
fputs ("#define g_marshal_value_peek_uchar(v) (v)->data[0].v_uint\n", fout);
fputs ("#define g_marshal_value_peek_int(v) (v)->data[0].v_int\n", fout);
fputs ("#define g_marshal_value_peek_uint(v) (v)->data[0].v_uint\n", fout);
fputs ("#define g_marshal_value_peek_long(v) (v)->data[0].v_long\n", fout);
fputs ("#define g_marshal_value_peek_ulong(v) (v)->data[0].v_ulong\n", fout);
fputs ("#define g_marshal_value_peek_int64(v) (v)->data[0].v_int64\n", fout);
fputs ("#define g_marshal_value_peek_uint64(v) (v)->data[0].v_uint64\n", fout);
fputs ("#define g_marshal_value_peek_enum(v) (v)->data[0].v_long\n", fout);
fputs ("#define g_marshal_value_peek_flags(v) (v)->data[0].v_ulong\n", fout);
fputs ("#define g_marshal_value_peek_float(v) (v)->data[0].v_float\n", fout);
fputs ("#define g_marshal_value_peek_double(v) (v)->data[0].v_double\n", fout);
fputs ("#define g_marshal_value_peek_string(v) (v)->data[0].v_pointer\n", fout);
fputs ("#define g_marshal_value_peek_param(v) (v)->data[0].v_pointer\n", fout);
fputs ("#define g_marshal_value_peek_boxed(v) (v)->data[0].v_pointer\n", fout);
fputs ("#define g_marshal_value_peek_pointer(v) (v)->data[0].v_pointer\n", fout);
fputs ("#define g_marshal_value_peek_object(v) (v)->data[0].v_pointer\n", fout);
fputs ("#define g_marshal_value_peek_variant(v) (v)->data[0].v_pointer\n", fout);
fputs ("#endif /* !G_ENABLE_DEBUG */\n", fout);
fputs ("\n", fout);
}
static gboolean
complete_in_arg (InArgument *iarg)
{
static const InArgument args[] = {
/* keyword sig_name ctype promoted getter */
{ "VOID", "VOID", "void", "void", NULL, },
{ "BOOLEAN", "BOOLEAN", "gboolean", "gboolean", "g_marshal_value_peek_boolean", },
{ "CHAR", "CHAR", "gchar", "gint", "g_marshal_value_peek_char", },
{ "UCHAR", "UCHAR", "guchar", "guint", "g_marshal_value_peek_uchar", },
{ "INT", "INT", "gint", "gint", "g_marshal_value_peek_int", },
{ "UINT", "UINT", "guint", "guint", "g_marshal_value_peek_uint", },
{ "LONG", "LONG", "glong", "glong", "g_marshal_value_peek_long", },
{ "ULONG", "ULONG", "gulong", "gulong", "g_marshal_value_peek_ulong", },
{ "INT64", "INT64", "gint64", "gint64", "g_marshal_value_peek_int64", },
{ "UINT64", "UINT64", "guint64", "guint64", "g_marshal_value_peek_uint64", },
{ "ENUM", "ENUM", "gint", "gint", "g_marshal_value_peek_enum", },
{ "FLAGS", "FLAGS", "guint", "guint", "g_marshal_value_peek_flags", },
{ "FLOAT", "FLOAT", "gfloat", "gdouble", "g_marshal_value_peek_float", },
{ "DOUBLE", "DOUBLE", "gdouble", "gdouble", "g_marshal_value_peek_double", },
{ "STRING", "STRING", "gpointer", "gpointer", "g_marshal_value_peek_string", "g_strdup", "g_free"},
{ "PARAM", "PARAM", "gpointer", "gpointer", "g_marshal_value_peek_param", "g_param_spec_ref", "g_param_spec_unref"},
{ "BOXED", "BOXED", "gpointer", "gpointer", "g_marshal_value_peek_boxed", "g_boxed_copy", "g_boxed_free", FALSE, TRUE},
{ "POINTER", "POINTER", "gpointer", "gpointer", "g_marshal_value_peek_pointer", },
{ "OBJECT", "OBJECT", "gpointer", "gpointer", "g_marshal_value_peek_object", "g_object_ref", "g_object_unref", TRUE},
{ "VARIANT", "VARIANT", "gpointer", "gpointer", "g_marshal_value_peek_variant", "g_variant_ref_sink", "g_variant_unref"},
/* deprecated: */
{ "NONE", "VOID", "void", "void", NULL, },
{ "BOOL", "BOOLEAN", "gboolean", "gboolean", "g_marshal_value_peek_boolean", },
};
guint i;
g_return_val_if_fail (iarg != NULL, FALSE);
for (i = 0; i < G_N_ELEMENTS (args); i++)
if (strcmp (args[i].keyword, iarg->keyword) == 0)
{
iarg->sig_name = args[i].sig_name;
iarg->ctype = args[i].ctype;
iarg->promoted_ctype = args[i].promoted_ctype;
iarg->getter = args[i].getter;
iarg->box = args[i].box;
iarg->unbox = args[i].unbox;
iarg->box_ignores_static = args[i].box_ignores_static;
iarg->box_takes_type = args[i].box_takes_type;
return TRUE;
}
return FALSE;
}
static gboolean
complete_out_arg (OutArgument *oarg)
{
static const OutArgument args[] = {
/* keyword sig_name ctype setter */
{ "VOID", "VOID", "void", NULL, },
{ "BOOLEAN", "BOOLEAN", "gboolean", "g_value_set_boolean", },
{ "CHAR", "CHAR", "gchar", "g_value_set_char", },
{ "UCHAR", "UCHAR", "guchar", "g_value_set_uchar", },
{ "INT", "INT", "gint", "g_value_set_int", },
{ "UINT", "UINT", "guint", "g_value_set_uint", },
{ "LONG", "LONG", "glong", "g_value_set_long", },
{ "ULONG", "ULONG", "gulong", "g_value_set_ulong", },
{ "INT64", "INT64", "gint64", "g_value_set_int64", },
{ "UINT64", "UINT64", "guint64", "g_value_set_uint64", },
{ "ENUM", "ENUM", "gint", "g_value_set_enum", },
{ "FLAGS", "FLAGS", "guint", "g_value_set_flags", },
{ "FLOAT", "FLOAT", "gfloat", "g_value_set_float", },
{ "DOUBLE", "DOUBLE", "gdouble", "g_value_set_double", },
{ "STRING", "STRING", "gchar*", "g_value_take_string", },
{ "PARAM", "PARAM", "GParamSpec*", "g_value_take_param", },
{ "BOXED", "BOXED", "gpointer", "g_value_take_boxed", },
{ "POINTER", "POINTER", "gpointer", "g_value_set_pointer", },
{ "OBJECT", "OBJECT", "GObject*", "g_value_take_object", },
{ "VARIANT", "VARIANT", "GVariant*", "g_value_take_variant", },
/* deprecated: */
{ "NONE", "VOID", "void", NULL, },
{ "BOOL", "BOOLEAN", "gboolean", "g_value_set_boolean", },
};
guint i;
g_return_val_if_fail (oarg != NULL, FALSE);
for (i = 0; i < G_N_ELEMENTS (args); i++)
if (strcmp (args[i].keyword, oarg->keyword) == 0)
{
oarg->sig_name = args[i].sig_name;
oarg->ctype = args[i].ctype;
oarg->setter = args[i].setter;
return TRUE;
}
return FALSE;
}
static const gchar*
pad (const gchar *string)
{
#define PAD_LENGTH 12
static gchar *buffer = NULL;
gint i;
g_return_val_if_fail (string != NULL, NULL);
if (!buffer)
buffer = g_new (gchar, PAD_LENGTH + 1);
/* paranoid check */
if (strlen (string) >= PAD_LENGTH)
{
g_free (buffer);
buffer = g_strdup_printf ("%s ", string);
g_warning ("overfull string (%u bytes) for padspace",
(guint) strlen (string));
exit_status |= 2;
return buffer;
}
for (i = 0; i < PAD_LENGTH; i++)
{
gboolean done = *string == 0;
buffer[i] = done ? ' ' : *string++;
}
buffer[i] = 0;
return buffer;
}
static const gchar*
indent (guint n_spaces)
{
static gchar *buffer = NULL;
static guint blength = 0;
if (blength <= n_spaces)
{
blength = n_spaces + 1;
g_free (buffer);
buffer = g_new (gchar, blength);
}
memset (buffer, ' ', n_spaces);
buffer[n_spaces] = 0;
return buffer;
}
static void
generate_marshal (const gchar *signame,
Signature *sig)
{
guint ind, a;
GList *node;
gchar *tmp = g_strconcat (marshaller_prefix, "_", signame, NULL);
gboolean have_std_marshaller = FALSE;
/* here we have to make sure a marshaller named <marshaller_prefix>_<signame>
* exists. we might have put it out already, can revert to a standard
* marshaller provided by glib, or need to generate one.
*/
if (g_hash_table_lookup (marshallers, tmp))
{
/* done, marshaller already generated */
g_free (tmp);
return;
}
else
{
/* need to alias/generate marshaller, register name */
g_hash_table_insert (marshallers, tmp, tmp);
}
/* can we revert to a standard marshaller? */
if (std_includes)
{
tmp = g_strconcat (std_marshaller_prefix, "_", signame, NULL);
have_std_marshaller = g_hash_table_lookup (marshallers, tmp) != NULL;
g_free (tmp);
}
/* GValue marshaller */
if (gen_cheader && have_std_marshaller)
{
g_fprintf (fout, "#define %s_%s\t%s_%s\n", marshaller_prefix, signame, std_marshaller_prefix, signame);
}
if (gen_cheader && !have_std_marshaller)
{
ind = g_fprintf (fout, gen_internal ? "G_GNUC_INTERNAL " : "extern ");
ind += g_fprintf (fout, "void ");
ind += g_fprintf (fout, "%s_%s (", marshaller_prefix, signame);
g_fprintf (fout, "GClosure *closure,\n");
g_fprintf (fout, "%sGValue *return_value,\n", indent (ind));
g_fprintf (fout, "%sguint n_param_values,\n", indent (ind));
g_fprintf (fout, "%sconst GValue *param_values,\n", indent (ind));
g_fprintf (fout, "%sgpointer invocation_hint,\n", indent (ind));
g_fprintf (fout, "%sgpointer marshal_data);\n",
indent (ind));
}
if (gen_cbody && !have_std_marshaller)
{
/* cfile marshal header */
g_fprintf (fout, "void\n");
ind = g_fprintf (fout, "%s_%s (", marshaller_prefix, signame);
g_fprintf (fout, "GClosure *closure,\n");
g_fprintf (fout, "%sGValue *return_value G_GNUC_UNUSED,\n", indent (ind));
g_fprintf (fout, "%sguint n_param_values,\n", indent (ind));
g_fprintf (fout, "%sconst GValue *param_values,\n", indent (ind));
g_fprintf (fout, "%sgpointer invocation_hint G_GNUC_UNUSED,\n", indent (ind));
g_fprintf (fout, "%sgpointer marshal_data)\n", indent (ind));
g_fprintf (fout, "{\n");
/* cfile GMarshalFunc typedef */
ind = g_fprintf (fout, " typedef %s (*GMarshalFunc_%s) (", sig->rarg->ctype, signame);
g_fprintf (fout, "%s data1,\n", pad ("gpointer"));
for (a = 1, node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
g_fprintf (fout, "%s%s arg_%d,\n", indent (ind), pad (iarg->ctype), a++);
}
g_fprintf (fout, "%s%s data2);\n", indent (ind), pad ("gpointer"));
/* cfile marshal variables */
g_fprintf (fout, " register GMarshalFunc_%s callback;\n", signame);
g_fprintf (fout, " register GCClosure *cc = (GCClosure*) closure;\n");
g_fprintf (fout, " register gpointer data1, data2;\n");
if (sig->rarg->setter)
g_fprintf (fout, " %s v_return;\n", sig->rarg->ctype);
if (sig->args || sig->rarg->setter)
{
g_fprintf (fout, "\n");
if (sig->rarg->setter)
g_fprintf (fout, " g_return_if_fail (return_value != NULL);\n");
if (sig->args)
{
for (a = 0, node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
a++;
}
g_fprintf (fout, " g_return_if_fail (n_param_values == %u);\n", 1 + a);
}
}
/* cfile marshal data1, data2 and callback setup */
g_fprintf (fout, "\n");
g_fprintf (fout, " if (G_CCLOSURE_SWAP_DATA (closure))\n {\n");
g_fprintf (fout, " data1 = closure->data;\n");
g_fprintf (fout, " data2 = g_value_peek_pointer (param_values + 0);\n");
g_fprintf (fout, " }\n else\n {\n");
g_fprintf (fout, " data1 = g_value_peek_pointer (param_values + 0);\n");
g_fprintf (fout, " data2 = closure->data;\n");
g_fprintf (fout, " }\n");
g_fprintf (fout, " callback = (GMarshalFunc_%s) (marshal_data ? marshal_data : cc->callback);\n", signame);
/* cfile marshal callback action */
g_fprintf (fout, "\n");
ind = g_fprintf (fout, " %s callback (", sig->rarg->setter ? " v_return =" : "");
g_fprintf (fout, "data1,\n");
for (a = 1, node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
g_fprintf (fout, "%s%s (param_values + %d),\n", indent (ind), iarg->getter, a++);
}
g_fprintf (fout, "%sdata2);\n", indent (ind));
/* cfile marshal return value storage */
if (sig->rarg->setter)
{
g_fprintf (fout, "\n");
g_fprintf (fout, " %s (return_value, v_return);\n", sig->rarg->setter);
}
/* cfile marshal footer */
g_fprintf (fout, "}\n");
}
/* vararg marshaller */
if (gen_cheader && gen_valist && have_std_marshaller)
{
g_fprintf (fout, "#define %s_%sv\t%s_%sv\n", marshaller_prefix, signame, std_marshaller_prefix, signame);
}
if (gen_cheader && gen_valist && !have_std_marshaller)
{
ind = g_fprintf (fout, gen_internal ? "G_GNUC_INTERNAL " : "extern ");
ind += g_fprintf (fout, "void ");
ind += g_fprintf (fout, "%s_%sv (", marshaller_prefix, signame);
g_fprintf (fout, "GClosure *closure,\n");
g_fprintf (fout, "%sGValue *return_value,\n", indent (ind));
g_fprintf (fout, "%sgpointer instance,\n", indent (ind));
g_fprintf (fout, "%sva_list args,\n", indent (ind));
g_fprintf (fout, "%sgpointer marshal_data,\n", indent (ind));
g_fprintf (fout, "%sint n_params,\n", indent (ind));
g_fprintf (fout, "%sGType *param_types);\n", indent (ind));
}
if (gen_cbody && gen_valist && !have_std_marshaller)
{
gint i;
gboolean has_arg;
g_fprintf (fout, "void\n");
ind = g_fprintf (fout, "%s_%sv (", marshaller_prefix, signame);
g_fprintf (fout, "GClosure *closure,\n");
g_fprintf (fout, "%sGValue *return_value,\n", indent (ind));
g_fprintf (fout, "%sgpointer instance,\n", indent (ind));
g_fprintf (fout, "%sva_list args,\n", indent (ind));
g_fprintf (fout, "%sgpointer marshal_data,\n", indent (ind));
g_fprintf (fout, "%sint n_params,\n", indent (ind));
g_fprintf (fout, "%sGType *param_types)\n", indent (ind));
g_fprintf (fout, "{\n");
ind = g_fprintf (fout, " typedef %s (*GMarshalFunc_%s) (", sig->rarg->ctype, signame);
g_fprintf (fout, "%s instance", pad ("gpointer"));
for (a = 0, node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
g_fprintf (fout, ",\n%s%s arg_%d", indent (ind), pad (iarg->ctype), a++);
}
g_fprintf (fout, ",\n%s%s data);\n", indent (ind), pad ("gpointer"));
g_fprintf (fout, " GCClosure *cc = (GCClosure*) closure;\n");
g_fprintf (fout, " gpointer data1, data2;\n");
g_fprintf (fout, " GMarshalFunc_%s callback;\n", signame);
has_arg = FALSE;
i = 0;
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
{
g_fprintf (fout, " %s arg%i;\n", iarg->ctype, i++);
has_arg = TRUE;
}
}
if (has_arg)
g_fprintf (fout, " va_list args_copy;\n");
if (sig->rarg->setter)
g_fprintf (fout, " %s v_return;\n", sig->rarg->ctype);
if (sig->rarg->setter)
{
g_fprintf (fout, "\n");
g_fprintf (fout, " g_return_if_fail (return_value != NULL);\n");
}
/* cfile marshal data1, data2 and callback setup */
if (has_arg)
{
g_fprintf (fout, "\n");
g_fprintf (fout, " G_VA_COPY (args_copy, args);\n");
i = 0;
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
{
g_fprintf (fout, " arg%i = (%s) va_arg (args_copy, %s);\n",
i, iarg->ctype, iarg->promoted_ctype);
if (iarg->box != NULL)
{
g_fprintf (fout, " if (");
if (!iarg->box_ignores_static)
g_fprintf (fout, "(param_types[%i] & G_SIGNAL_TYPE_STATIC_SCOPE) == 0 && ", i);
g_fprintf (fout, "arg%i != NULL)\n ", i);
if (iarg->box_takes_type)
g_fprintf (fout,
" arg%i = %s (param_types[%i] & ~G_SIGNAL_TYPE_STATIC_SCOPE, arg%i);\n",
i, iarg->box, i, i);
else
g_fprintf (fout,
" arg%i = %s (arg%i);\n",
i, iarg->box, i);
}
}
i++;
}
g_fprintf (fout, " va_end (args_copy);\n");
}
g_fprintf (fout, "\n");
/* cfile marshal data1, data2 and callback setup */
g_fprintf (fout, " if (G_CCLOSURE_SWAP_DATA (closure))\n {\n");
g_fprintf (fout, " data1 = closure->data;\n");
g_fprintf (fout, " data2 = instance;\n");
g_fprintf (fout, " }\n else\n {\n");
g_fprintf (fout, " data1 = instance;\n");
g_fprintf (fout, " data2 = closure->data;\n");
g_fprintf (fout, " }\n");
g_fprintf (fout, " callback = (GMarshalFunc_%s) (marshal_data ? marshal_data : cc->callback);\n", signame);
/* cfile marshal callback action */
g_fprintf (fout, "\n");
ind = g_fprintf (fout, " %s callback (", sig->rarg->setter ? " v_return =" : "");
g_fprintf (fout, "data1");
i = 0;
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->getter)
g_fprintf (fout, ",\n%sarg%i", indent (ind), i++);
}
g_fprintf (fout, ",\n%sdata2);\n", indent (ind));
i = 0;
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (iarg->unbox)
{
g_fprintf (fout, " if (");
if (!iarg->box_ignores_static)
g_fprintf (fout, "(param_types[%i] & G_SIGNAL_TYPE_STATIC_SCOPE) == 0 && ", i);
g_fprintf (fout, "arg%i != NULL)\n ", i);
if (iarg->box_takes_type)
g_fprintf (fout,
" %s (param_types[%i] & ~G_SIGNAL_TYPE_STATIC_SCOPE, arg%i);\n",
iarg->unbox, i, i);
else
g_fprintf (fout,
" %s (arg%i);\n",
iarg->unbox, i);
}
i++;
}
/* cfile marshal return value storage */
if (sig->rarg->setter)
{
g_fprintf (fout, "\n");
g_fprintf (fout, " %s (return_value, v_return);\n", sig->rarg->setter);
}
g_fprintf (fout, "}\n\n");
}
}
static void
process_signature (Signature *sig)
{
gchar *pname, *sname, *tmp;
GList *node;
/* lookup and complete info on arguments */
if (!complete_out_arg (sig->rarg))
{
g_warning ("unknown type: %s", sig->rarg->keyword);
exit_status |= 1;
return;
}
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
if (!complete_in_arg (iarg))
{
g_warning ("unknown type: %s", iarg->keyword);
exit_status |= 1;
return;
}
}
/* construct requested marshaller name and technical marshaller name */
pname = g_strconcat (sig->rarg->keyword, "_", NULL);
sname = g_strconcat (sig->rarg->sig_name, "_", NULL);
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
gchar *tmp;
tmp = sname;
sname = g_strconcat (tmp, "_", iarg->sig_name, NULL);
g_free (tmp);
tmp = pname;
pname = g_strconcat (tmp, "_", iarg->keyword, NULL);
g_free (tmp);
}
/* introductionary comment */
g_fprintf (fout, "\n/* %s", sig->rarg->keyword);
for (node = sig->args; node; node = node->next)
{
InArgument *iarg = node->data;
g_fprintf (fout, "%c%s", node->prev ? ',' : ':', iarg->keyword);
}
if (!skip_ploc)
g_fprintf (fout, " (%s)", sig->ploc);
g_fprintf (fout, " */\n");
/* ensure technical marshaller exists (<marshaller_prefix>_<sname>) */
generate_marshal (sname, sig);
/* put out marshaller alias for requested name if required (<marshaller_prefix>_<pname>) */
tmp = g_strconcat (marshaller_prefix, "_", pname, NULL);
if (gen_cheader && !g_hash_table_lookup (marshallers, tmp))
{
g_fprintf (fout, "#define %s_%s\t%s_%s\n", marshaller_prefix, pname, marshaller_prefix, sname);
g_hash_table_insert (marshallers, tmp, tmp);
}
else
g_free (tmp);
g_free (pname);
g_free (sname);
}
static InArgument*
new_in_arg (const gchar *pname)
{
InArgument *iarg = g_new0 (InArgument, 1);
iarg->keyword = g_strdup (pname);
return iarg;
}
static OutArgument*
new_out_arg (const gchar *pname)
{
OutArgument *oarg = g_new0 (OutArgument, 1);
oarg->keyword = g_strdup (pname);
return oarg;
}
static guint
parse_line (GScanner *scanner,
Signature *sig)
{
/* parse identifier for return value */
if (g_scanner_get_next_token (scanner) != G_TOKEN_IDENTIFIER)
return G_TOKEN_IDENTIFIER;
sig->rarg = new_out_arg (scanner->value.v_identifier);
/* keep a note on the location */
sig->ploc = g_strdup_printf ("%s:%u", scanner->input_name, scanner->line);
/* expect ':' */
if (g_scanner_get_next_token (scanner) != ':')
return ':';
/* parse first argument */
if (g_scanner_get_next_token (scanner) != G_TOKEN_IDENTIFIER)
return G_TOKEN_IDENTIFIER;
sig->args = g_list_append (sig->args, new_in_arg (scanner->value.v_identifier));
/* parse rest of argument list */
while (g_scanner_peek_next_token (scanner) == ',')
{
/* eat comma */
g_scanner_get_next_token (scanner);
/* parse arg identifier */
if (g_scanner_get_next_token (scanner) != G_TOKEN_IDENTIFIER)
return G_TOKEN_IDENTIFIER;
sig->args = g_list_append (sig->args, new_in_arg (scanner->value.v_identifier));
}
/* expect end of line, done */
if (g_scanner_get_next_token (scanner) != '\n')
return '\n';
/* success */
return G_TOKEN_NONE;
}
static gboolean
string_key_destroy (gpointer key,
gpointer value,
gpointer user_data)
{
g_free (key);
return TRUE;
}
int
main (int argc,
char *argv[])
{
const gchar *gobject_marshallers[] = {
#include "gmarshal.strings"
};
GScanner *scanner;
GSList *slist, *files = NULL;
gint i;
/* parse args and do fast exits */
parse_args (&argc, &argv);
/* list input files */
for (i = 1; i < argc; i++)
files = g_slist_prepend (files, argv[i]);
if (files)
files = g_slist_reverse (files);
else
files = g_slist_prepend (files, "/dev/stdin");
/* setup auxiliary structs */
scanner = g_scanner_new (&scanner_config_template);
fout = stdout;
marshallers = g_hash_table_new (g_str_hash, g_str_equal);
/* add standard marshallers of the GObject library */
if (std_includes)
for (i = 0; i < G_N_ELEMENTS (gobject_marshallers); i++)
{
gchar *tmp = g_strdup (gobject_marshallers[i]);
g_hash_table_insert (marshallers, tmp, tmp);
}
/* put out initial heading */
g_fprintf (fout, "\n");
if (gen_cheader && std_includes)
{
g_fprintf (fout, "#ifndef __%s_MARSHAL_H__\n", marshaller_prefix);
g_fprintf (fout, "#define __%s_MARSHAL_H__\n\n", marshaller_prefix);
}
if ((gen_cheader || gen_cbody) && std_includes)
g_fprintf (fout, "#include\t<glib-object.h>\n\n");
if (gen_cheader)
g_fprintf (fout, "G_BEGIN_DECLS\n");
/* generate necessary preprocessor directives */
if (gen_cbody)
put_marshal_value_getters ();
/* process input files */
for (slist = files; slist; slist = slist->next)
{
gchar *file = slist->data;
gint fd;
if (strcmp (file, "/dev/stdin") == 0)
/* Mostly for Win32. This is equivalent to opening /dev/stdin */
fd = dup (0);
else
fd = g_open (file, O_RDONLY, 0);
if (fd < 0)
{
g_warning ("failed to open \"%s\": %s", file, g_strerror (errno));
exit_status |= 1;
continue;
}
/* set file name for error reports */
scanner->input_name = file;
/* parse & process file */
g_scanner_input_file (scanner, fd);
/* scanning loop, we parse the input until its end is reached,
* or our sub routine came across invalid syntax
*/
do
{
guint expected_token = G_TOKEN_NONE;
switch ((guint) g_scanner_peek_next_token (scanner))
{
case '\n':
/* eat newline and restart */
g_scanner_get_next_token (scanner);
continue;
case G_TOKEN_EOF:
/* done */
break;
default:
/* parse and process signatures */
{
Signature signature = { NULL, NULL, NULL };
GList *node;
expected_token = parse_line (scanner, &signature);
/* once we got a valid signature, process it */
if (expected_token == G_TOKEN_NONE)
process_signature (&signature);
/* clean up signature contents */
g_free (signature.ploc);
if (signature.rarg)
g_free (signature.rarg->keyword);
g_free (signature.rarg);
for (node = signature.args; node; node = node->next)
{
InArgument *iarg = node->data;
g_free (iarg->keyword);
g_free (iarg);
}
g_list_free (signature.args);
}
break;
}
/* bail out on errors */
if (expected_token != G_TOKEN_NONE)
{
g_scanner_unexp_token (scanner, expected_token, "type name", NULL, NULL, NULL, TRUE);
exit_status |= 1;
break;
}
g_scanner_peek_next_token (scanner);
}
while (scanner->next_token != G_TOKEN_EOF);
close (fd);
}
/* put out trailer */
if (gen_cheader)
{
g_fprintf (fout, "\nG_END_DECLS\n");
if (std_includes)
g_fprintf (fout, "\n#endif /* __%s_MARSHAL_H__ */\n", marshaller_prefix);
}
g_fprintf (fout, "\n");
/* clean up */
g_slist_free (files);
g_scanner_destroy (scanner);
g_hash_table_foreach_remove (marshallers, string_key_destroy, NULL);
g_hash_table_destroy (marshallers);
return exit_status;
}
static void
parse_args (gint *argc_p,
gchar ***argv_p)
{
guint argc = *argc_p;
gchar **argv = *argv_p;
guint i, e;
for (i = 1; i < argc; i++)
{
if (strcmp ("--header", argv[i]) == 0)
{
gen_cheader = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--body", argv[i]) == 0)
{
gen_cbody = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--skip-source", argv[i]) == 0)
{
skip_ploc = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--nostdinc", argv[i]) == 0)
{
std_includes = FALSE;
argv[i] = NULL;
}
else if (strcmp ("--stdinc", argv[i]) == 0)
{
std_includes = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--internal", argv[i]) == 0)
{
gen_internal = TRUE;
argv[i] = NULL;
}
else if (strcmp ("--valist-marshallers", argv[i]) == 0)
{
gen_valist = TRUE;
argv[i] = NULL;
}
else if ((strcmp ("--prefix", argv[i]) == 0) ||
(strncmp ("--prefix=", argv[i], 9) == 0))
{
gchar *equal = argv[i] + 8;
if (*equal == '=')
marshaller_prefix = g_strdup (equal + 1);
else if (i + 1 < argc)
{
marshaller_prefix = g_strdup (argv[i + 1]);
argv[i] = NULL;
i += 1;
}
argv[i] = NULL;
}
else if (strcmp ("-h", argv[i]) == 0 ||
strcmp ("-?", argv[i]) == 0 ||
strcmp ("--help", argv[i]) == 0)
{
print_blurb (stderr, TRUE);
argv[i] = NULL;
exit (0);
}
else if (strcmp ("-v", argv[i]) == 0 ||
strcmp ("--version", argv[i]) == 0)
{
print_blurb (stderr, FALSE);
argv[i] = NULL;
exit (0);
}
else if (strcmp (argv[i], "--g-fatal-warnings") == 0)
{
GLogLevelFlags fatal_mask;
fatal_mask = g_log_set_always_fatal (G_LOG_FATAL_MASK);
fatal_mask |= G_LOG_LEVEL_WARNING | G_LOG_LEVEL_CRITICAL;
g_log_set_always_fatal (fatal_mask);
argv[i] = NULL;
}
}
e = 0;
for (i = 1; i < argc; i++)
{
if (e)
{
if (argv[i])
{
argv[e++] = argv[i];
argv[i] = NULL;
}
}
else if (!argv[i])
e = i;
}
if (e)
*argc_p = e;
}
static void
print_blurb (FILE *bout,
gboolean print_help)
{
if (!print_help)
{
g_fprintf (bout, "%s version ", PRG_NAME);
g_fprintf (bout, "%u.%u.%u", GLIB_MAJOR_VERSION, GLIB_MINOR_VERSION, GLIB_MICRO_VERSION);
g_fprintf (bout, "\n");
g_fprintf (bout, "%s comes with ABSOLUTELY NO WARRANTY.\n", PRG_NAME);
g_fprintf (bout, "You may redistribute copies of %s under the terms of\n", PRG_NAME);
g_fprintf (bout, "the GNU General Public License which can be found in the\n");
g_fprintf (bout, "%s source package. Sources, examples and contact\n", PKG_NAME);
g_fprintf (bout, "information are available at %s\n", PKG_HTTP_HOME);
}
else
{
g_fprintf (bout, "Usage:\n");
g_fprintf (bout, " %s [OPTION...] [FILES...]\n\n", PRG_NAME);
g_fprintf (bout, "Help Options:\n");
g_fprintf (bout, " -h, --help Show this help message\n\n");
g_fprintf (bout, "Utility Options:\n");
g_fprintf (bout, " --header Generate C headers\n");
g_fprintf (bout, " --body Generate C code\n");
g_fprintf (bout, " --prefix=string Specify marshaller prefix\n");
g_fprintf (bout, " --skip-source Skip source location comments\n");
g_fprintf (bout, " --stdinc, --nostdinc Include/use standard marshallers\n");
g_fprintf (bout, " --internal Mark generated functions as internal\n");
g_fprintf (bout, " --valist-marshallers Generate va_list marshallers\n");
g_fprintf (bout, " -v, --version Print version informations\n");
g_fprintf (bout, " --g-fatal-warnings Make warnings fatal (abort)\n");
}
}
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