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* ext/racc/cparse/cparse.c: sync with original code (rev 1.7).

* ext/racc/cparse/cparse.c: use rb_catch instead of rb_iterate.  Giving a block to a Ruby-level method by rb_iterate is obsolete on Ruby 1.9.  Note that current cparse.c still includes one rb_iterate call on Ruby 1.8, but it is not a problem (at least just now).


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@10452 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
aamine 2006-07-02 10:19:06 +00:00
parent cc07257f55
commit 0bf031acce
2 changed files with 69 additions and 97 deletions

View file

@ -1,25 +1,24 @@
/*
cparse.c -- racc runtime core
cparse.c -- Racc Runtime Core
Copyright (c) 1999-2003 Minero Aoki <aamine@loveruby.net>
Copyright (c) 1999-2006 Minero Aoki
This library is free software.
You can distribute/modify this program under the same terms of ruby.
$raccId: cparse.c,v 1.3 2003/11/03 12:20:54 aamine Exp $
$originalId: cparse.c,v 1.7 2006/07/02 10:02:02 aamine Exp $
*/
#include "ruby.h"
#include <stdio.h>
#include "version.h"
/* -----------------------------------------------------------------------
Important Constants
----------------------------------------------------------------------- */
#define RACC_VERSION "1.4.4"
#define RACC_VERSION "1.4.5"
#define DEFAULT_TOKEN -1
#define ERROR_TOKEN 1
@ -29,7 +28,6 @@
#define vERROR_TOKEN INT2FIX(ERROR_TOKEN)
#define vFINAL_TOKEN INT2FIX(FINAL_TOKEN)
/* -----------------------------------------------------------------------
File Local Variables
----------------------------------------------------------------------- */
@ -41,8 +39,6 @@ static ID id_yydebug;
static ID id_nexttoken;
static ID id_onerror;
static ID id_noreduce;
static ID id_catch;
static VALUE sym_raccjump;
static ID id_errstatus;
static ID id_d_shift;
@ -52,44 +48,41 @@ static ID id_d_read_token;
static ID id_d_next_state;
static ID id_d_e_pop;
/* -----------------------------------------------------------------------
Utils
----------------------------------------------------------------------- */
static ID value_to_id _((VALUE v));
static inline long num_to_long _((VALUE n));
#ifdef ID2SYM
# define id_to_value(i) ID2SYM(i)
#else
# define id_to_value(i) ULONG2NUM(i)
/* For backward compatibility */
#ifndef ID2SYM
# define ID2SYM(i) ULONG2NUM(i)
#endif
#ifndef SYM2ID
# define SYM2ID(v) ((ID)NUM2ULONG(v))
#endif
static ID
value_to_id(v)
VALUE v;
{
#ifndef SYMBOL_P
# define SYMBOL_P(v) FIXNUM_P(v)
#endif
if (! SYMBOL_P(v)) {
rb_raise(rb_eTypeError, "not symbol");
}
#ifdef SYM2ID
return SYM2ID(v);
#else
return (ID)NUM2ULONG(v);
#endif
}
#ifndef LONG2NUM
# define LONG2NUM(i) INT2NUM(i)
#endif
#if RUBY_VERSION_CODE >= 190
# define HAVE_RB_BLOCK_CALL 1
#endif
static ID value_to_id _((VALUE v));
static inline long num_to_long _((VALUE n));
static ID
value_to_id(VALUE v)
{
if (! SYMBOL_P(v)) {
rb_raise(rb_eTypeError, "not symbol");
}
return SYM2ID(v);
}
static inline long
num_to_long(n)
VALUE n;
num_to_long(VALUE n)
{
return NUM2LONG(n);
}
@ -97,7 +90,6 @@ num_to_long(n)
#define AREF(s, idx) \
((0 <= idx && idx < RARRAY(s)->len) ? RARRAY(s)->ptr[idx] : Qnil)
/* -----------------------------------------------------------------------
Parser Stack Interfaces
----------------------------------------------------------------------- */
@ -106,9 +98,7 @@ static VALUE get_stack_tail _((VALUE stack, long len));
static void cut_stack_tail _((VALUE stack, long len));
static VALUE
get_stack_tail(stack, len)
VALUE stack;
long len;
get_stack_tail(VALUE stack, long len)
{
if (len < 0) return Qnil; /* system error */
if (len > RARRAY(stack)->len) len = RARRAY(stack)->len;
@ -116,9 +106,7 @@ get_stack_tail(stack, len)
}
static void
cut_stack_tail(stack, len)
VALUE stack;
long len;
cut_stack_tail(VALUE stack, long len)
{
while (len > 0) {
rb_ary_pop(stack);
@ -135,7 +123,6 @@ cut_stack_tail(stack, len)
#define GET_TAIL(s, len) get_stack_tail(s, len)
#define CUT_TAIL(s, len) cut_stack_tail(s, len)
/* -----------------------------------------------------------------------
struct cparse_params
----------------------------------------------------------------------- */
@ -193,7 +180,6 @@ struct cparse_params {
long i; /* table index */
};
/* -----------------------------------------------------------------------
Parser Main Routines
----------------------------------------------------------------------- */
@ -203,7 +189,6 @@ static VALUE racc_yyparse _((VALUE parser, VALUE lexer, VALUE lexmid,
VALUE arg, VALUE sysdebug));
static void call_lexer _((struct cparse_params *v));
static VALUE lexer_iter _((VALUE data));
static VALUE lexer_i _((VALUE block_args, VALUE data, VALUE self));
static VALUE assert_array _((VALUE a));
@ -219,7 +204,6 @@ static void extract_user_token _((struct cparse_params *v,
VALUE block_args, VALUE *tok, VALUE *val));
static void shift _((struct cparse_params* v, long act, VALUE tok, VALUE val));
static int reduce _((struct cparse_params* v, long act));
static VALUE catch_iter _((VALUE dummy));
static VALUE reduce0 _((VALUE block_args, VALUE data, VALUE self));
#ifdef DEBUG
@ -231,8 +215,7 @@ static VALUE reduce0 _((VALUE block_args, VALUE data, VALUE self));
#endif
static VALUE
racc_cparse(parser, arg, sysdebug)
VALUE parser, arg, sysdebug;
racc_cparse(VALUE parser, VALUE arg, VALUE sysdebug)
{
struct cparse_params params;
struct cparse_params *v = &params;
@ -247,8 +230,7 @@ racc_cparse(parser, arg, sysdebug)
}
static VALUE
racc_yyparse(parser, lexer, lexmid, arg, sysdebug)
VALUE parser, lexer, lexmid, arg, sysdebug;
racc_yyparse(VALUE parser, VALUE lexer, VALUE lexmid, VALUE arg, VALUE sysdebug)
{
struct cparse_params params;
struct cparse_params *v = &params;
@ -268,16 +250,15 @@ racc_yyparse(parser, lexer, lexmid, arg, sysdebug)
return v->retval;
}
#ifdef HAVE_RB_BLOCK_CALL
static void
call_lexer(v)
struct cparse_params *v;
call_lexer(struct cparse_params *v)
{
rb_iterate(lexer_iter, v->value_v, lexer_i, v->value_v);
rb_block_call(v->lexer, v->lexmid, 0, NULL, lexer_i, v->value_v);
}
#else
static VALUE
lexer_iter(data)
VALUE data;
lexer_iter(VALUE data)
{
struct cparse_params *v;
@ -286,9 +267,15 @@ lexer_iter(data)
return Qnil;
}
static void
call_lexer(struct cparse_params *v)
{
rb_iterate(lexer_iter, v->value_v, lexer_i, v->value_v);
}
#endif
static VALUE
lexer_i(block_args, data, self)
VALUE block_args, data, self;
lexer_i(VALUE block_args, VALUE data, VALUE self)
{
struct cparse_params *v;
VALUE tok, val;
@ -304,32 +291,28 @@ lexer_i(block_args, data, self)
}
static VALUE
assert_array(a)
VALUE a;
assert_array(VALUE a)
{
Check_Type(a, T_ARRAY);
return a;
}
static VALUE
assert_hash(h)
VALUE h;
assert_hash(VALUE h)
{
Check_Type(h, T_HASH);
return h;
}
static long
assert_integer(n)
VALUE n;
assert_integer(VALUE n)
{
return NUM2LONG(n);
}
static void
initialize_params(v, parser, arg, lexer, lexmid)
struct cparse_params *v;
VALUE parser, arg, lexer, lexmid;
initialize_params(struct cparse_params *v,
VALUE parser, VALUE arg, VALUE lexer, VALUE lexmid)
{
v->value_v = Data_Wrap_Struct(CparseParams, 0, 0, v);
@ -380,10 +363,8 @@ initialize_params(v, parser, arg, lexer, lexmid)
}
static void
extract_user_token(v, block_args, tok, val)
struct cparse_params *v;
VALUE block_args;
VALUE *tok, *val;
extract_user_token(struct cparse_params *v, VALUE block_args,
VALUE *tok, VALUE *val)
{
if (NIL_P(block_args)) {
/* EOF */
@ -426,10 +407,7 @@ extract_user_token(v, block_args, tok, val)
} while (0)
static void
parse_main(v, tok, val, resume)
struct cparse_params *v;
VALUE tok, val;
int resume;
parse_main(struct cparse_params *v, VALUE tok, VALUE val, int resume)
{
long i; /* table index */
long act; /* action type */
@ -636,10 +614,7 @@ parse_main(v, tok, val, resume)
}
static void
shift(v, act, tok, val)
struct cparse_params *v;
long act;
VALUE tok, val;
shift(struct cparse_params *v, long act, VALUE tok, VALUE val)
{
PUSH(v->vstack, val);
if (v->debug) {
@ -652,33 +627,23 @@ shift(v, act, tok, val)
}
static int
reduce(v, act)
struct cparse_params *v;
long act;
reduce(struct cparse_params *v, long act)
{
VALUE code;
v->ruleno = -act * 3;
code = rb_iterate(catch_iter, Qnil, reduce0, v->value_v);
code = rb_catch("racc_jump", reduce0, v->value_v);
v->errstatus = num_to_long(rb_ivar_get(v->parser, id_errstatus));
return NUM2INT(code);
}
static VALUE
catch_iter(dummy)
VALUE dummy;
{
return rb_funcall(rb_mKernel, id_catch, 1, sym_raccjump);
}
static VALUE
reduce0(val, data, self)
VALUE val, data, self;
reduce0(VALUE val, VALUE data, VALUE self)
{
struct cparse_params *v;
VALUE reduce_to, reduce_len, method_id;
long len;
ID mid;
VALUE tmp, tmp_t, tmp_v;
VALUE tmp, tmp_t = Qundef, tmp_v = Qundef;
long i, k1, k2;
VALUE goto_state;
@ -777,13 +742,12 @@ reduce0(val, data, self)
goto transit;
}
/* -----------------------------------------------------------------------
Ruby Interface
----------------------------------------------------------------------- */
void
Init_cparse()
Init_cparse(void)
{
VALUE Racc, Parser;
ID id_racc = rb_intern("Racc");
@ -801,7 +765,7 @@ Init_cparse()
rb_define_const(Parser, "Racc_Runtime_Core_Version_C",
rb_str_new2(RACC_VERSION));
rb_define_const(Parser, "Racc_Runtime_Core_Id_C",
rb_str_new2("$raccId: cparse.c,v 1.3 2003/11/03 12:20:54 aamine Exp $"));
rb_str_new2("$originalId: cparse.c,v 1.7 2006/07/02 10:02:02 aamine Exp $"));
CparseParams = rb_define_class_under(Racc, "CparseParams", rb_cObject);
@ -811,9 +775,7 @@ Init_cparse()
id_nexttoken = rb_intern("next_token");
id_onerror = rb_intern("on_error");
id_noreduce = rb_intern("_reduce_none");
id_catch = rb_intern("catch");
id_errstatus = rb_intern("@racc_error_status");
sym_raccjump = id_to_value(rb_intern("racc_jump"));
id_d_shift = rb_intern("racc_shift");
id_d_reduce = rb_intern("racc_reduce");