/
imcparser.c
5780 lines (5035 loc) · 174 KB
/
imcparser.c
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/* ex: set ro ft=c: -*- buffer-read-only:t -*-
* !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
*
* This file is generated automatically from 'compilers/imcc/imcc.y'
* by tools/build/fixup_gen_file.pl.
*
* Any changes made here will be lost!
*
*/
/* HEADERIZER HFILE: none */
/* HEADERIZER STOP */
/* A Bison parser, made by GNU Bison 2.7.12-4996. */
/* Bison implementation for Yacc-like parsers in C
Copyright (C) 1984, 1989-1990, 2000-2013 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.
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/>. */
/* As a special exception, you may create a larger work that contains
part or all of the Bison parser skeleton and distribute that work
under terms of your choice, so long as that work isn't itself a
parser generator using the skeleton or a modified version thereof
as a parser skeleton. Alternatively, if you modify or redistribute
the parser skeleton itself, you may (at your option) remove this
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. */
/* C LALR(1) parser skeleton written by Richard Stallman, by
simplifying the original so-called "semantic" parser. */
/* All symbols defined below should begin with yy or YY, to avoid
infringing on user name space. This should be done even for local
variables, as they might otherwise be expanded by user macros.
There are some unavoidable exceptions within include files to
define necessary library symbols; they are noted "INFRINGES ON
USER NAME SPACE" below. */
/* Identify Bison output. */
#define YYBISON 1
/* Bison version. */
#define YYBISON_VERSION "2.7.12-4996"
/* Skeleton name. */
#define YYSKELETON_NAME "yacc.c"
/* Pure parsers. */
#define YYPURE 1
/* Push parsers. */
#define YYPUSH 0
/* Pull parsers. */
#define YYPULL 1
/* Copy the first part of user declarations. */
/* Line 371 of yacc.c */
#line 1 "compilers/imcc/imcc.y"
/*
* imcc.y
*
* Intermediate Code Compiler for Parrot.
*
* Copyright (C) 2002 Melvin Smith <melvin.smith@mindspring.com>
* Copyright (C) 2002-2014, Parrot Foundation.
*
* Grammar of the PIR language parser.
*
*
*/
/*
=pod
=head1 NAME
compilers/imcc/imcc.y - Intermediate Code Compiler for Parrot.
=head1 DESCRIPTION
This file contains the grammar of the PIR language parser.
=cut
*/
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#define _PARSER
#define PARSER_MAIN
#include "imc.h"
#include "parrot/dynext.h"
#include "pmc/pmc_callcontext.h"
#include "pbc.h"
#include "parser.h"
#include "optimizer.h"
#include "instructions.h"
#include "symreg.h"
/* prevent declarations of malloc() and free() in the generated parser. */
#define YYMALLOC
#define YYFREE(Ptr) do { /* empty */; } while (0)
#ifndef YYENABLE_NLS
# define YYENABLE_NLS 0
#endif
#ifndef YYLTYPE_IS_TRIVIAL
# define YYLTYPE_IS_TRIVIAL 0
#endif
/* HEADERIZER HFILE: compilers/imcc/imc.h */
/* HEADERIZER BEGIN: static */
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
static void add_pcc_named_arg(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name),
ARGMOD(SymReg *value))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*cur_call)
FUNC_MODIFIES(*name)
FUNC_MODIFIES(*value);
static void add_pcc_named_arg_var(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name),
ARGMOD(SymReg *value))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*cur_call)
FUNC_MODIFIES(*name)
FUNC_MODIFIES(*value);
static void add_pcc_named_param(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name),
ARGMOD(SymReg *value))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*cur_call)
FUNC_MODIFIES(*name)
FUNC_MODIFIES(*value);
static void add_pcc_named_result(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name),
ARGMOD(SymReg *value))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*cur_call)
FUNC_MODIFIES(*name)
FUNC_MODIFIES(*value);
static void add_pcc_named_return(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name),
ARGMOD(SymReg *value))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*cur_call)
FUNC_MODIFIES(*name)
FUNC_MODIFIES(*value);
static void adv_named_set(ARGMOD(imc_info_t *imcc), ARGIN(const char *name))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
FUNC_MODIFIES(*imcc);
static void adv_named_set_u(
ARGMOD(imc_info_t *imcc),
ARGIN(const char *name))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
FUNC_MODIFIES(*imcc);
static void begin_return_or_yield(ARGMOD(imc_info_t *imcc), int yield)
__attribute__nonnull__(1)
FUNC_MODIFIES(*imcc);
static void clear_state(ARGMOD(imc_info_t *imcc))
__attribute__nonnull__(1)
FUNC_MODIFIES(*imcc);
static void do_loadlib(ARGMOD(imc_info_t *imcc), ARGIN(const char *lib))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
FUNC_MODIFIES(*imcc);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction* func_ins(
ARGMOD(imc_info_t *imcc),
ARGMOD(IMC_Unit *unit),
ARGIN(SymReg *lhs),
ARGIN(const char *op),
ARGMOD(SymReg **r),
int n,
int keyv,
int emit)
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
__attribute__nonnull__(5)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit)
FUNC_MODIFIES(*r);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction * iINDEXFETCH(
ARGMOD(imc_info_t *imcc),
ARGMOD(IMC_Unit *unit),
ARGIN(SymReg *r0),
ARGIN(SymReg *r1),
ARGIN(SymReg *r2))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
__attribute__nonnull__(5)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction * iINDEXSET(
ARGMOD(imc_info_t *imcc),
ARGMOD(IMC_Unit *unit),
ARGIN(SymReg *r0),
ARGIN(SymReg *r1),
ARGIN(SymReg *r2))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
__attribute__nonnull__(5)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit);
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static Instruction * iLABEL(
ARGMOD(imc_info_t *imcc),
ARGMOD_NULLOK(IMC_Unit *unit),
ARGMOD(SymReg *r0))
__attribute__nonnull__(1)
__attribute__nonnull__(3)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit)
FUNC_MODIFIES(*r0);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static const char * inv_op(ARGIN(const char *op))
__attribute__nonnull__(1);
PARROT_IGNORABLE_RESULT
PARROT_CANNOT_RETURN_NULL
static Instruction * iSUBROUTINE(
ARGMOD(imc_info_t *imcc),
ARGMOD_NULLOK(IMC_Unit *unit),
ARGMOD(SymReg *r))
__attribute__nonnull__(1)
__attribute__nonnull__(3)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit)
FUNC_MODIFIES(*r);
PARROT_IGNORABLE_RESULT
PARROT_CAN_RETURN_NULL
static Instruction * MK_I(
ARGMOD(imc_info_t *imcc),
ARGMOD(IMC_Unit *unit),
ARGIN(const char *fmt),
int n,
...)
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit);
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction* mk_pmc_const_named(
ARGMOD(imc_info_t *imcc),
ARGMOD(IMC_Unit *unit),
ARGIN(const char *name),
ARGMOD(SymReg *left),
ARGIN(const char *constant))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
__attribute__nonnull__(4)
__attribute__nonnull__(5)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*unit)
FUNC_MODIFIES(*left);
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static SymReg * mk_sub_address_fromc(
ARGMOD(imc_info_t *imcc),
ARGIN(const char *name))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
FUNC_MODIFIES(*imcc);
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static SymReg * mk_sub_address_u(
ARGMOD(imc_info_t *imcc),
ARGIN(const char *name))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
FUNC_MODIFIES(*imcc);
static void set_lexical(
ARGMOD(imc_info_t *imcc),
ARGMOD(SymReg *r),
ARGMOD(SymReg *name))
__attribute__nonnull__(1)
__attribute__nonnull__(2)
__attribute__nonnull__(3)
FUNC_MODIFIES(*imcc)
FUNC_MODIFIES(*r)
FUNC_MODIFIES(*name);
#define ASSERT_ARGS_add_pcc_named_arg __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(cur_call) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(value))
#define ASSERT_ARGS_add_pcc_named_arg_var __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(cur_call) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(value))
#define ASSERT_ARGS_add_pcc_named_param __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(cur_call) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(value))
#define ASSERT_ARGS_add_pcc_named_result __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(cur_call) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(value))
#define ASSERT_ARGS_add_pcc_named_return __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(cur_call) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(value))
#define ASSERT_ARGS_adv_named_set __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(name))
#define ASSERT_ARGS_adv_named_set_u __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(name))
#define ASSERT_ARGS_begin_return_or_yield __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc))
#define ASSERT_ARGS_clear_state __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc))
#define ASSERT_ARGS_do_loadlib __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(lib))
#define ASSERT_ARGS_func_ins __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(unit) \
, PARROT_ASSERT_ARG(lhs) \
, PARROT_ASSERT_ARG(op) \
, PARROT_ASSERT_ARG(r))
#define ASSERT_ARGS_iINDEXFETCH __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(unit) \
, PARROT_ASSERT_ARG(r0) \
, PARROT_ASSERT_ARG(r1) \
, PARROT_ASSERT_ARG(r2))
#define ASSERT_ARGS_iINDEXSET __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(unit) \
, PARROT_ASSERT_ARG(r0) \
, PARROT_ASSERT_ARG(r1) \
, PARROT_ASSERT_ARG(r2))
#define ASSERT_ARGS_iLABEL __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(r0))
#define ASSERT_ARGS_inv_op __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(op))
#define ASSERT_ARGS_iSUBROUTINE __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(r))
#define ASSERT_ARGS_MK_I __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(unit) \
, PARROT_ASSERT_ARG(fmt))
#define ASSERT_ARGS_mk_pmc_const_named __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(unit) \
, PARROT_ASSERT_ARG(name) \
, PARROT_ASSERT_ARG(left) \
, PARROT_ASSERT_ARG(constant))
#define ASSERT_ARGS_mk_sub_address_fromc __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(name))
#define ASSERT_ARGS_mk_sub_address_u __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(name))
#define ASSERT_ARGS_set_lexical __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(imcc) \
, PARROT_ASSERT_ARG(r) \
, PARROT_ASSERT_ARG(name))
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
/* HEADERIZER END: static */
#undef YYDEBUG
#define YYDEBUG 1
#define YYERROR_VERBOSE 1
/* Warning: parser is probably not reentrant */
/*
* Choosing instructions for Parrot is pretty easy since many are
* polymorphic.
*/
/*
=over 4
=item C<static Instruction * MK_I(imc_info_t *imcc, IMC_Unit *unit, const char
*fmt, int n, ...)>
build and emitb instruction by INS. fmt may contain:
op %s, %s # comment
or just
op
NOTE: Most usage of this function is with
imcc->cur_unit, but there are some
exceptions. Thus, we can't easily factorize that piece of
code.
=cut
*/
PARROT_IGNORABLE_RESULT
PARROT_CAN_RETURN_NULL
static Instruction *
MK_I(ARGMOD(imc_info_t *imcc), ARGMOD(IMC_Unit *unit), ARGIN(const char *fmt), int n, ...)
{
ASSERT_ARGS(MK_I)
char opname[64];
char *p;
const char *q;
va_list ap;
SymReg *r[IMCC_MAX_FIX_REGS];
int i;
for (p = opname, q = fmt; *q && *q != ' ';)
*p++ = *q++;
*p = '\0';
if (!*q)
fmt = NULL;
else
fmt = ++q;
#ifdef OPDEBUG
fprintf(stderr, "op '%s' format '%s' (%d)\n", opname, fmt?:"", n);
#endif
va_start(ap, n);
i = 0;
for (i = 0; i < n; ++i) {
r[i] = va_arg(ap, SymReg *);
}
va_end(ap);
return INS(imcc, unit, opname, fmt, r, n, imcc->keyvec, 1);
}
/*
=item C<static Instruction* mk_pmc_const_named(imc_info_t *imcc, IMC_Unit *unit,
const char *name, SymReg *left, const char *constant)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction*
mk_pmc_const_named(ARGMOD(imc_info_t *imcc), ARGMOD(IMC_Unit *unit),
ARGIN(const char *name), ARGMOD(SymReg *left), ARGIN(const char *constant))
{
ASSERT_ARGS(mk_pmc_const_named)
SymReg *rhs;
SymReg *r[3];
char *const_name;
const int ascii = (*constant == '\'' || *constant == '"');
char *unquoted_name = mem_sys_strdup(name + 1);
size_t name_length = strlen(unquoted_name) - 1;
unquoted_name[name_length] = 0;
if (left->type == VTADDRESS) { /* IDENTIFIER */
if (imcc->state->pasm_file) {
IMCC_fataly(imcc, EXCEPTION_SYNTAX_ERROR,
"Ident as PMC constant",
" %s\n", left->name);
}
left->type = VTIDENTIFIER;
left->set = 'P';
}
r[0] = left;
if (ascii) {
/* strip delimiters */
const_name = mem_sys_strdup(constant + 1);
const_name[strlen(const_name) - 1] = 0;
}
else {
const_name = mem_sys_strdup(constant);
}
/* With an empty name here, like .const '' $Pxx = "constant"
can only be a Sub. name_length = 0 matches all */
if ((strncmp(unquoted_name, "Sub", name_length) == 0)
|| (strncmp(unquoted_name, "Coroutine", name_length) == 0)) {
rhs = mk_const(imcc, const_name, 'p');
if (!ascii)
rhs->type |= VT_ENCODED;
rhs->usage |= U_FIXUP | U_SUBID_LOOKUP;
}
else if (strncmp(unquoted_name, "LexInfo", name_length) == 0) {
rhs = mk_const(imcc, const_name, 'l');
if (!ascii)
rhs->type |= VT_ENCODED;
rhs->usage |= U_FIXUP | U_LEXINFO_LOOKUP;
}
else {
rhs = mk_const(imcc, const_name, 'P');
}
r[1] = rhs;
rhs->pmc_type = Parrot_pmc_get_type_str(imcc->interp,
Parrot_str_new(imcc->interp, unquoted_name, name_length));
mem_sys_free(unquoted_name);
mem_sys_free(const_name);
return INS(imcc, unit, "set_p_pc", "", r, 2, 0, 1);
}
/*
=item C<static Instruction* func_ins(imc_info_t *imcc, IMC_Unit *unit, SymReg
*lhs, const char *op, SymReg **r, int n, int keyv, int emit)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction*
func_ins(ARGMOD(imc_info_t *imcc), ARGMOD(IMC_Unit *unit), ARGIN(SymReg *lhs),
ARGIN(const char *op), ARGMOD(SymReg **r), int n, int keyv, int emit)
{
ASSERT_ARGS(func_ins)
int i;
/* shift regs up by 1 */
for (i = n - 1; i >= 0; --i)
r[i+1] = r[i];
r[0] = lhs;
/* shift keyvec */
keyv <<= 1;
return INS(imcc, unit, op, "", r, n+1, keyv, emit);
}
/*
=item C<static void clear_state(imc_info_t *imcc)>
=cut
*/
static void
clear_state(ARGMOD(imc_info_t *imcc))
{
ASSERT_ARGS(clear_state)
imcc -> nargs = 0;
imcc -> keyvec = 0;
}
/*
=item C<Instruction * INS_LABEL(imc_info_t *imcc, IMC_Unit *unit, SymReg *r0,
int emit)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
Instruction *
INS_LABEL(ARGMOD(imc_info_t *imcc), ARGMOD_NULLOK(IMC_Unit *unit),
ARGMOD(SymReg *r0), int emit)
{
ASSERT_ARGS(INS_LABEL)
Instruction * const ins = _mk_instruction("", "%s:", 1, &r0, 0);
ins->type = ITLABEL;
r0->first_ins = ins;
if (emit)
emitb(imcc, unit, ins);
return ins;
}
/*
=item C<static Instruction * iLABEL(imc_info_t *imcc, IMC_Unit *unit, SymReg
*r0)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static Instruction *
iLABEL(ARGMOD(imc_info_t *imcc), ARGMOD_NULLOK(IMC_Unit *unit),
ARGMOD(SymReg *r0))
{
ASSERT_ARGS(iLABEL)
Instruction * const i = INS_LABEL(imcc, unit, r0, 1);
i->line = imcc->line;
clear_state(imcc);
return i;
}
/*
=item C<static Instruction * iSUBROUTINE(imc_info_t *imcc, IMC_Unit *unit,
SymReg *r)>
=cut
*/
PARROT_IGNORABLE_RESULT
PARROT_CANNOT_RETURN_NULL
static Instruction *
iSUBROUTINE(ARGMOD(imc_info_t *imcc), ARGMOD_NULLOK(IMC_Unit *unit), ARGMOD(SymReg *r))
{
ASSERT_ARGS(iSUBROUTINE)
Instruction * const i = iLABEL(imcc, unit, r);
i->type |= ITPCCPARAM;
r->type = (r->type & VT_ENCODED) ? VT_PCC_SUB|VT_ENCODED : VT_PCC_SUB;
r->pcc_sub = mem_gc_allocate_zeroed_typed(imcc->interp, pcc_sub_t);
imcc->cur_call = r;
i->line = imcc->line;
add_namespace(imcc, unit);
return i;
}
/*
=item C<static Instruction * iINDEXFETCH(imc_info_t *imcc, IMC_Unit *unit,
SymReg *r0, SymReg *r1, SymReg *r2)>
substr or X = P[key]
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction *
iINDEXFETCH(ARGMOD(imc_info_t *imcc), ARGMOD(IMC_Unit *unit), ARGIN(SymReg *r0),
ARGIN(SymReg *r1), ARGIN(SymReg *r2))
{
ASSERT_ARGS(iINDEXFETCH)
imcc -> keyvec |= KEY_BIT(2);
return MK_I(imcc, unit, "set %s, %s[%s]", 3, r0, r1, r2);
}
/*
=item C<static Instruction * iINDEXSET(imc_info_t *imcc, IMC_Unit *unit, SymReg
*r0, SymReg *r1, SymReg *r2)>
substr or P[key] = X
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static Instruction *
iINDEXSET(ARGMOD(imc_info_t *imcc), ARGMOD(IMC_Unit *unit), ARGIN(SymReg *r0),
ARGIN(SymReg *r1), ARGIN(SymReg *r2))
{
ASSERT_ARGS(iINDEXSET)
if (r0->set == 'P') {
imcc->keyvec |= KEY_BIT(1);
MK_I(imcc, unit, "set %s[%s], %s", 3, r0, r1, r2);
}
else
IMCC_fataly(imcc, EXCEPTION_SYNTAX_ERROR,
"unsupported indexed set op\n");
return NULL;
}
/*
=item C<static const char * inv_op(const char *op)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CAN_RETURN_NULL
static const char *
inv_op(ARGIN(const char *op))
{
ASSERT_ARGS(inv_op)
int n;
return get_neg_op(op, &n);
}
/*
=item C<Instruction * IMCC_create_itcall_label(imc_info_t *imcc)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
Instruction *
IMCC_create_itcall_label(ARGMOD(imc_info_t *imcc))
{
ASSERT_ARGS(IMCC_create_itcall_label)
char name[128];
SymReg *r;
Instruction *i;
snprintf(name, sizeof (name), "%cpcc_sub_call_%d", IMCC_INTERNAL_CHAR,
imcc->cnr++);
r = mk_pcc_sub(imcc, name, 0);
i = iLABEL(imcc, imcc->cur_unit, r);
i->type = ITCALL | ITPCCSUB;
imcc->cur_call = r;
return i;
}
/*
=item C<static SymReg * mk_sub_address_fromc(imc_info_t *imcc, const char
*name)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static SymReg *
mk_sub_address_fromc(ARGMOD(imc_info_t *imcc), ARGIN(const char *name))
{
ASSERT_ARGS(mk_sub_address_fromc)
/* name is a quoted sub name */
SymReg *r;
char *name_copy;
/* interpolate only if the first character is a double-quote */
if (*name == '"') {
STRING *unescaped = Parrot_str_unescape(imcc->interp, name, '"', NULL);
name_copy = Parrot_str_to_cstring(imcc->interp, unescaped);
}
else {
name_copy = mem_sys_strdup(name);
name_copy[strlen(name) - 1] = 0;
}
r = mk_sub_address(imcc, name_copy + 1);
mem_sys_free(name_copy);
return r;
}
/*
=item C<static SymReg * mk_sub_address_u(imc_info_t *imcc, const char *name)>
=cut
*/
PARROT_WARN_UNUSED_RESULT
PARROT_CANNOT_RETURN_NULL
static SymReg *
mk_sub_address_u(ARGMOD(imc_info_t *imcc), ARGIN(const char *name))
{
ASSERT_ARGS(mk_sub_address_u)
SymReg * const r = mk_sub_address(imcc, name);
r->type |= VT_ENCODED;
return r;
}
/*
=item C<void IMCC_itcall_sub(imc_info_t *imcc, SymReg *sub)>
=cut
*/
void
IMCC_itcall_sub(ARGMOD(imc_info_t *imcc), ARGIN(SymReg *sub))
{
ASSERT_ARGS(IMCC_itcall_sub)
imcc->cur_call->pcc_sub->sub = sub;
if (imcc->cur_obj) {
if (imcc->cur_obj->set != 'P')
IMCC_fataly(imcc, EXCEPTION_SYNTAX_ERROR, "object isn't a PMC");
imcc->cur_call->pcc_sub->object = imcc->cur_obj;
imcc->cur_obj = NULL;
}
}
/*
=item C<static void begin_return_or_yield(imc_info_t *imcc, int yield)>
=cut
*/
static void
begin_return_or_yield(ARGMOD(imc_info_t *imcc), int yield)
{
ASSERT_ARGS(begin_return_or_yield)
Instruction *i;
Instruction * const ins = imcc->cur_unit->instructions;
char name[128];
if (!ins || !ins->symregs[0] || !(ins->symregs[0]->type & VT_PCC_SUB))
IMCC_fataly(imcc, EXCEPTION_SYNTAX_ERROR,
"yield or return directive outside pcc subroutine\n");
ins->symregs[0]->pcc_sub->yield = yield;
snprintf(name, sizeof (name), yield ? "%cpcc_sub_yield_%d" : "%cpcc_sub_ret_%d",
IMCC_INTERNAL_CHAR, imcc->cnr++);
imcc->sr_return = mk_pcc_sub(imcc, name, 0);
i = iLABEL(imcc, imcc->cur_unit, imcc->sr_return);
i->type = yield ? ITPCCSUB | ITLABEL | ITPCCYIELD : ITPCCSUB | ITLABEL ;
imcc->asm_state = yield ? AsmInYield : AsmInReturn;
}
/*
=item C<static void set_lexical(imc_info_t *imcc, SymReg *r, SymReg *name)>
=cut
*/
static void
set_lexical(ARGMOD(imc_info_t *imcc), ARGMOD(SymReg *r), ARGMOD(SymReg *name))
{
ASSERT_ARGS(set_lexical)
r->usage |= U_LEXICAL;
IMCC_debug(imcc, DEBUG_MKCONST, "# .lex '%s'\n", name->name);
if (name == r->reg)
IMCC_fataly(imcc, EXCEPTION_SYNTAX_ERROR,
"register %s already declared as lexical %s", r->name, name->name);
/* chain all names in r->reg */
name->reg = r->reg;
r->reg = name;
name->usage |= U_LEXICAL;
r->use_count++;
}
/*
=item C<static void add_pcc_named_arg(imc_info_t *imcc, SymReg *cur_call, SymReg
*name, SymReg *value)>
=cut
*/
static void
add_pcc_named_arg(ARGMOD(imc_info_t *imcc), ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name), ARGMOD(SymReg *value))
{
ASSERT_ARGS(add_pcc_named_arg)
name->type |= VT_NAMED;
add_pcc_arg(imcc, cur_call, name);
add_pcc_arg(imcc, cur_call, value);
}
/*
=item C<static void add_pcc_named_arg_var(imc_info_t *imcc, SymReg *cur_call,
SymReg *name, SymReg *value)>
=cut
*/
static void
add_pcc_named_arg_var(ARGMOD(imc_info_t *imcc), ARGMOD(SymReg *cur_call),
ARGMOD(SymReg *name), ARGMOD(SymReg *value))
{
ASSERT_ARGS(add_pcc_named_arg_var)
name->type |= VT_NAMED;
add_pcc_arg(imcc, cur_call, name);
add_pcc_arg(imcc, cur_call, value);
}
/*
=item C<static void add_pcc_named_result(imc_info_t *imcc, SymReg *cur_call,
SymReg *name, SymReg *value)>