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cmd/gc: allow x[i:j:k] (and x[:j:k]) into the release

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R=ken2
CC=golang-dev
https://golang.org/cl/13512053
This commit is contained in:
Russ Cox 2013-09-11 14:55:46 -04:00
parent cdc5356c93
commit 8cd6341cf8
3 changed files with 654 additions and 1276 deletions
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9
src/cmd/gc/go.y
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@ -23,8 +23,6 @@
#include <libc.h>
#include "go.h"
static int isrelease = -1;
static void fixlbrace(int);
%}
%union {
@ -957,13 +955,6 @@ pexpr_no_paren:
}
| pexpr '[' oexpr ':' oexpr ':' oexpr ']'
{
// Make sure we don't accidentally release this experimental feature.
// http://golang.org/s/go12slice.
if(isrelease < 0)
isrelease = strstr(getgoversion(), "release") != nil;
if(isrelease)
yyerror("3-index slice not available in release");
if($5 == N)
yyerror("middle index required in 3-index slice");
if($7 == N)

1875
src/cmd/gc/y.tab.c
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File diff suppressed because it is too large Load Diff

46
src/cmd/gc/y.tab.h
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@ -1,21 +1,24 @@
/* A Bison parser, made by GNU Bison 2.5. */
/* A Bison parser, made by GNU Bison 2.3. */
/* Bison interface for Yacc-like parsers in C
Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
/* Skeleton interface for Bison's Yacc-like parsers in C
Copyright (C) 1984, 1989, 1990, 2000, 2001, 2002, 2003, 2004, 2005, 2006
Free Software Foundation, Inc.
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 3 of the License, or
(at your option) any later version.
the Free Software Foundation; either version 2, 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, see <http://www.gnu.org/licenses/>. */
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
@ -26,11 +29,10 @@
special exception, which will cause the skeleton and the resulting
Bison output files to be licensed under the GNU General Public
License without this special exception.
This special exception was added by the Free Software Foundation in
version 2.2 of Bison. */
/* Tokens. */
#ifndef YYTOKENTYPE
# define YYTOKENTYPE
@ -144,28 +146,22 @@
#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED
typedef union YYSTYPE
#line 28 "go.y"
{
/* Line 2068 of yacc.c */
#line 30 "go.y"
Node* node;
NodeList* list;
Type* type;
Sym* sym;
struct Val val;
int i;
/* Line 2068 of yacc.c */
#line 163 "y.tab.h"
} YYSTYPE;
# define YYSTYPE_IS_TRIVIAL 1
}
/* Line 1529 of yacc.c. */
#line 160 "y.tab.h"
YYSTYPE;
# define yystype YYSTYPE /* obsolescent; will be withdrawn */
# define YYSTYPE_IS_DECLARED 1
# define YYSTYPE_IS_TRIVIAL 1
#endif
extern YYSTYPE yylval;