6efb184d9a
* NEW: Controls whose width (or height) is 1 will always be 1 pixel wide (or high), regardless of the value of Desktop.Scale. * NEW: Put the property sheet and the hierarchy tree inside the tabstrip. * BUG: Replace Image.Flip() by Image.Mirror() in the welcome dialog. [COMPILER] * BUG: "Ambiguous braces" error message was incorrect, and has been replaced by "Ambigous brackets". [GB.IMAGE] * NEW: Remove Image.Transform(). [GB.FORM.MDI] * BUG: The default value of Workspace.ButtonPosition is Align.Right. [GB.QT4] * NEW: If the width (or height) argument of Control.MoveScaled() or Control.ResizeScaled() is zero, then the effective width (or height) will be 1 pixel. * NEW: Do not activate windows whose type is ToolTip, Notification, DragAndDrop or Desktop in the Show() method. * BUG: Wait a little before activating windows, so that they do not stay in the foreground. git-svn-id: svn://localhost/gambas/trunk@2255 867c0c6c-44f3-4631-809d-bfa615b0a4ec
798 lines
15 KiB
C
798 lines
15 KiB
C
/***************************************************************************
|
||
|
||
gbc_trans_tree.c
|
||
|
||
(c) 2000-2009 Benoît Minisini <gambas@users.sourceforge.net>
|
||
|
||
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 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, write to the Free Software
|
||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
||
***************************************************************************/
|
||
|
||
#define __GBC_TRANS_TREE_C
|
||
|
||
#include "gb_common.h"
|
||
#include "gb_error.h"
|
||
#include "gbc_compile.h"
|
||
|
||
#include "gbc_trans.h"
|
||
#include "gb_code.h"
|
||
#include "gbc_read.h"
|
||
|
||
//#define DEBUG
|
||
|
||
#define BYREF_TEST(_byref, _n) (_byref & ((uintptr_t)1 << _n))
|
||
#define BYREF_SET(_byref, _n) _byref |= ((uintptr_t)1 << _n)
|
||
|
||
static short level;
|
||
static PATTERN *current;
|
||
static TRANS_TREE tree[MAX_EXPR_PATTERN];
|
||
static int tree_length = 0;
|
||
/*static PATTERN last_pattern;*/
|
||
|
||
static void analyze_expr(short priority, short op_main);
|
||
|
||
|
||
static void inc_level()
|
||
{
|
||
level++;
|
||
if (level > MAX_EXPR_LEVEL)
|
||
THROW("Expression too complex");
|
||
}
|
||
|
||
|
||
static void dec_level()
|
||
{
|
||
level--;
|
||
}
|
||
|
||
|
||
static void add_pattern(PATTERN pattern)
|
||
{
|
||
if (tree_length >= MAX_EXPR_PATTERN)
|
||
THROW("Expression too complex");
|
||
|
||
tree[tree_length] = pattern;
|
||
tree_length++;
|
||
}
|
||
|
||
|
||
static void remove_last_pattern()
|
||
{
|
||
if (tree_length == 0)
|
||
return;
|
||
|
||
tree_length--;
|
||
}
|
||
|
||
|
||
static PATTERN get_last_pattern(int dep)
|
||
{
|
||
/*
|
||
short index;
|
||
|
||
index = (short)ARRAY_count(tree);
|
||
if (index < dep)
|
||
return NULL_PATTERN;
|
||
|
||
return tree[index - dep];
|
||
*/
|
||
if (tree_length < dep)
|
||
return NULL_PATTERN;
|
||
else
|
||
return tree[tree_length - dep];
|
||
}
|
||
|
||
|
||
static void change_last_pattern(int dep, PATTERN pattern)
|
||
{
|
||
/*
|
||
short index;
|
||
|
||
index = (short)ARRAY_count(tree);
|
||
if (index < dep)
|
||
return;
|
||
|
||
tree[index - dep] = pattern;
|
||
*/
|
||
if (tree_length < dep)
|
||
return;
|
||
tree[tree_length - dep] = pattern;
|
||
}
|
||
|
||
|
||
static void check_last_first(int dep)
|
||
{
|
||
if (PATTERN_is_identifier(get_last_pattern(dep)))
|
||
change_last_pattern(dep, PATTERN_set_flag(get_last_pattern(dep), RT_FIRST));
|
||
}
|
||
|
||
|
||
static void add_reserved_pattern(int reserved)
|
||
{
|
||
add_pattern(PATTERN_make(RT_RESERVED, reserved));
|
||
}
|
||
|
||
|
||
static void add_operator_output(short op, short nparam, uint64_t byref)
|
||
{
|
||
PATTERN pattern;
|
||
|
||
/*
|
||
Why this test?
|
||
|
||
add_operator() can be called without operator. See:
|
||
if (RES_priority(op) < prio) ...
|
||
*/
|
||
|
||
if (op == RS_NONE || op == RS_UNARY)
|
||
return;
|
||
|
||
if (op == RS_EXCL)
|
||
{
|
||
op = RS_LSQR;
|
||
nparam = 2;
|
||
|
||
check_last_first(2);
|
||
}
|
||
|
||
pattern = PATTERN_make(RT_RESERVED, op);
|
||
|
||
//if (op == RS_LBRA && byref)
|
||
// pattern = PATTERN_set_flag(pattern, RT_OUTPUT);
|
||
|
||
add_pattern(pattern);
|
||
|
||
add_pattern(PATTERN_make(RT_PARAM, nparam));
|
||
|
||
if (op == RS_LBRA && byref)
|
||
{
|
||
while (byref)
|
||
{
|
||
add_pattern(PATTERN_make(RT_PARAM, byref & 0xFFFF));
|
||
byref >>= 16;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
static void add_operator(short op, short nparam)
|
||
{
|
||
add_operator_output(op, nparam, 0);
|
||
}
|
||
|
||
|
||
|
||
static void add_subr(PATTERN subr_pattern, short nparam)
|
||
{
|
||
PATTERN pattern;
|
||
|
||
//if (has_output)
|
||
// subr_pattern = PATTERN_set_flag(subr_pattern, RT_OUTPUT);
|
||
|
||
add_pattern(subr_pattern);
|
||
|
||
pattern = PATTERN_make(RT_PARAM, nparam);
|
||
add_pattern(pattern);
|
||
}
|
||
|
||
static bool is_statement(void)
|
||
{
|
||
PATTERN last;
|
||
int count;
|
||
|
||
count = tree_length;
|
||
|
||
if (count == 0)
|
||
return FALSE;
|
||
|
||
count--;
|
||
last = tree[count];
|
||
|
||
while (PATTERN_is_param(last) && (count > 0))
|
||
{
|
||
count--;
|
||
last = tree[count];
|
||
}
|
||
|
||
if (PATTERN_is(last, RS_PT))
|
||
goto _ADD_BRACE;
|
||
|
||
if (PATTERN_is_identifier(last))
|
||
{
|
||
if (count == 0)
|
||
goto _ADD_BRACE;
|
||
|
||
if (count >= 2)
|
||
{
|
||
last = tree[count - 1];
|
||
if (PATTERN_is_param(last) && (PATTERN_index(last) == 0)
|
||
&& PATTERN_is(tree[count - 2], RS_PT))
|
||
goto _ADD_BRACE;
|
||
}
|
||
}
|
||
else if (PATTERN_is_subr(last)
|
||
|| PATTERN_is(last, RS_LBRA)
|
||
|| PATTERN_is(last, RS_RBRA)
|
||
|| PATTERN_is(last, RS_AT)
|
||
|| PATTERN_is(last, RS_COMMA))
|
||
return TRUE;
|
||
|
||
#ifdef DEBUG
|
||
printf("Last = ");
|
||
READ_dump_pattern(&last);
|
||
printf("%08X %08X %d\n", last, PATTERN_make(RT_RESERVED, RS_LBRA), PATTERN_is(last, RS_LBRA));
|
||
#endif
|
||
|
||
return FALSE;
|
||
|
||
_ADD_BRACE:
|
||
|
||
add_operator(RS_LBRA, 0);
|
||
#ifdef DEBUG
|
||
printf("Add ()\n");
|
||
#endif
|
||
return TRUE;
|
||
}
|
||
|
||
static void analyze_make_array()
|
||
{
|
||
int n = 0;
|
||
bool checked = FALSE;
|
||
bool collection = FALSE;
|
||
|
||
if (PATTERN_is(*current, RS_RSQR))
|
||
{
|
||
current++;
|
||
add_pattern(PATTERN_make(RT_RESERVED, RS_NULL));
|
||
return;
|
||
}
|
||
|
||
for(;;)
|
||
{
|
||
n++;
|
||
if (n > MAX_PARAM_OP)
|
||
THROW("Too many arguments");
|
||
analyze_expr(0, RS_NONE);
|
||
|
||
if (!checked)
|
||
{
|
||
collection = PATTERN_is(*current, RS_COLON);
|
||
checked = TRUE;
|
||
}
|
||
|
||
if (collection)
|
||
{
|
||
if (!PATTERN_is(*current, RS_COLON))
|
||
THROW("Missing ':'");
|
||
current++;
|
||
n++;
|
||
if (n > MAX_PARAM_OP)
|
||
THROW("Too many arguments");
|
||
analyze_expr(0, RS_NONE);
|
||
}
|
||
|
||
if (!PATTERN_is(*current, RS_COMMA))
|
||
break;
|
||
current++;
|
||
}
|
||
|
||
if (!PATTERN_is(*current, RS_RSQR))
|
||
THROW("Missing ']'");
|
||
current++;
|
||
|
||
add_operator(collection ? RS_COLON : RS_RSQR, n);
|
||
}
|
||
|
||
|
||
static void analyze_single(int op)
|
||
{
|
||
PATTERN *pattern;
|
||
bool jump_newline;
|
||
|
||
jump_newline = PATTERN_is_newline(*current);
|
||
if (jump_newline)
|
||
{
|
||
add_pattern(PATTERN_make(RT_NEWLINE, 0));
|
||
JOB->line++;
|
||
current++;
|
||
}
|
||
|
||
if (op == RS_PT && !PATTERN_is_identifier(*current))
|
||
THROW("The '.' operator must be followed by an identifier");
|
||
else if (op == RS_EXCL && !PATTERN_is_string(*current))
|
||
THROW("The '!' operator must be followed by an identifier");
|
||
|
||
/* ( expr ) */
|
||
|
||
if (PATTERN_is(*current, RS_LBRA))
|
||
{
|
||
int old_length = tree_length;
|
||
PATTERN last;
|
||
|
||
current++;
|
||
analyze_expr(0, RS_NONE);
|
||
|
||
if (!PATTERN_is(*current, RS_RBRA))
|
||
THROW("Missing ')'");
|
||
current++;
|
||
|
||
if (tree_length == (old_length + 1))
|
||
{
|
||
last = get_last_pattern(1);
|
||
if (PATTERN_is_string(last))
|
||
change_last_pattern(1, PATTERN_make(RT_TSTRING, PATTERN_index(last)));
|
||
}
|
||
}
|
||
|
||
/* [ expr, expr, ... ] */
|
||
|
||
else if (PATTERN_is(*current, RS_LSQR))
|
||
{
|
||
current++;
|
||
analyze_make_array();
|
||
}
|
||
|
||
/* - expr | NOT expr */
|
||
|
||
else if (PATTERN_is(*current, RS_MINUS) || PATTERN_is(*current, RS_NOT))
|
||
{
|
||
pattern = current;
|
||
current++;
|
||
|
||
analyze_expr(RES_priority(RS_NOT), RS_UNARY);
|
||
add_operator(PATTERN_index(*pattern), 1);
|
||
}
|
||
|
||
/* . symbol */
|
||
|
||
else if (PATTERN_is(*current, RS_PT) && PATTERN_is_identifier(current[1]))
|
||
{
|
||
add_operator(PATTERN_index(current[0]), 0);
|
||
add_pattern(PATTERN_set_flag(current[1], RT_POINT));
|
||
current += 2;
|
||
}
|
||
|
||
/* NULL, TRUE, FALSE, ME, PARENT, LAST, ERROR */
|
||
/* number, string or symbol */
|
||
|
||
else if (PATTERN_is(*current, RS_NULL)
|
||
|| PATTERN_is(*current, RS_ME)
|
||
|| PATTERN_is(*current, RS_LAST)
|
||
|| PATTERN_is(*current, RS_TRUE)
|
||
|| PATTERN_is(*current, RS_FALSE)
|
||
|| PATTERN_is(*current, RS_ERROR)
|
||
|| (!PATTERN_is_reserved(*current) && !PATTERN_is_newline(*current) && !PATTERN_is_end(*current)))
|
||
{
|
||
add_pattern(*current);
|
||
|
||
if (PATTERN_is_identifier(*current))
|
||
{
|
||
/*if ((op == RS_NONE || op == RS_UNARY) && (PATTERN_is_identifier(*current)))
|
||
change_last_pattern(1, PATTERN_set_flag(get_last_pattern(1), RT_FIRST));*/
|
||
if (op == RS_PT)
|
||
{
|
||
change_last_pattern(1, PATTERN_set_flag(get_last_pattern(1), RT_POINT));
|
||
check_last_first(2);
|
||
}
|
||
}
|
||
|
||
current++;
|
||
}
|
||
|
||
else if (PATTERN_is(*current, RS_SUPER))
|
||
{
|
||
add_pattern(*current);
|
||
current++;
|
||
if (!PATTERN_is(*current, RS_PT)
|
||
&& !PATTERN_is(*current, RS_EXCL)
|
||
&& !PATTERN_is(*current, RS_LBRA)
|
||
&& !PATTERN_is(*current, RS_LSQR))
|
||
THROW("SUPER cannot be used alone");
|
||
}
|
||
|
||
else
|
||
{
|
||
if (jump_newline)
|
||
{
|
||
current--;
|
||
JOB->line--;
|
||
}
|
||
|
||
THROW(E_UNEXPECTED, READ_get_pattern(current));
|
||
}
|
||
}
|
||
|
||
|
||
static void analyze_call()
|
||
{
|
||
static PATTERN *byref_pattern[MAX_PARAM_OP];
|
||
|
||
int i, nparam_post = 0;
|
||
PATTERN subr_pattern = NULL_PATTERN;
|
||
PATTERN last_pattern = get_last_pattern(1);
|
||
SUBR_INFO *info;
|
||
bool optional = TRUE;
|
||
uint64_t byref = 0;
|
||
PATTERN *save;
|
||
|
||
/*
|
||
get_pattern_subr(last_pattern, &subr);
|
||
*/
|
||
if (PATTERN_is_subr(last_pattern))
|
||
{
|
||
subr_pattern = last_pattern;
|
||
remove_last_pattern();
|
||
optional = FALSE;
|
||
}
|
||
else if (PATTERN_is_identifier(last_pattern))
|
||
{
|
||
check_last_first(1);
|
||
}
|
||
else if (PATTERN_is_string(last_pattern) || PATTERN_is_number(last_pattern))
|
||
THROW(E_SYNTAX);
|
||
|
||
/* N.B. Le cas où last_pattern = "." n'a pas de test spécifique */
|
||
|
||
if (subr_pattern && subr_pattern == PATTERN_make(RT_SUBR, SUBR_VarPtr))
|
||
{
|
||
if (!PATTERN_is_identifier(current[0]) || !!PATTERN_is(current[1], RS_RBRA))
|
||
THROW("Syntax error. VarPtr() takes only one identifier");
|
||
|
||
add_pattern(*current);
|
||
current += 2;
|
||
add_subr(subr_pattern, 1);
|
||
}
|
||
else
|
||
{
|
||
for (;;)
|
||
{
|
||
if (PATTERN_is(*current, RS_RBRA))
|
||
{
|
||
current++;
|
||
break;
|
||
}
|
||
|
||
if (nparam_post > 0)
|
||
{
|
||
if (!PATTERN_is(*current, RS_COMMA))
|
||
THROW("Missing ',' or ')'");
|
||
current++;
|
||
}
|
||
|
||
#if 0
|
||
if (FALSE) /*(PATTERN_is(*current, RS_AMP))*/
|
||
{
|
||
current++;
|
||
output[nparam_post] = current;
|
||
has_output = TRUE;
|
||
}
|
||
else
|
||
{
|
||
output[nparam_post] = NULL;
|
||
}
|
||
#endif
|
||
|
||
if (optional && (PATTERN_is(*current, RS_COMMA) || PATTERN_is(*current, RS_RBRA)))
|
||
{
|
||
add_reserved_pattern(RS_OPTIONAL);
|
||
}
|
||
else
|
||
{
|
||
if (PATTERN_is(*current, RS_AT) || PATTERN_is(*current, RS_BYREF))
|
||
{
|
||
current++;
|
||
BYREF_SET(byref, nparam_post);
|
||
byref_pattern[nparam_post] = current;
|
||
}
|
||
|
||
analyze_expr(0, RS_NONE);
|
||
}
|
||
|
||
nparam_post++;
|
||
|
||
if (nparam_post > MAX_PARAM_FUNC)
|
||
THROW("Too many arguments");
|
||
}
|
||
|
||
if (get_last_pattern(1) == PATTERN_make(RT_RESERVED, RS_OPTIONAL))
|
||
THROW("Syntax error. Needless arguments");
|
||
|
||
/*
|
||
while (nparam_post > 0)
|
||
{
|
||
if (get_last_pattern(1) != PATTERN_make(RT_RESERVED, RS_OPTIONAL))
|
||
break;
|
||
|
||
remove_last_pattern();
|
||
nparam_post--;
|
||
}
|
||
*/
|
||
|
||
if (subr_pattern == NULL_PATTERN)
|
||
{
|
||
add_operator_output(RS_LBRA, nparam_post, byref);
|
||
|
||
save = current;
|
||
|
||
for (i = nparam_post - 1; i >= 0; i--)
|
||
{
|
||
if (BYREF_TEST(byref, i))
|
||
{
|
||
current = byref_pattern[i];
|
||
analyze_expr(0, RS_NONE);
|
||
//if (!is_statement())
|
||
// THROW("The &1 argument cannot be passed by reference", TRANS_get_num_desc(i + 1));
|
||
add_pattern(PATTERN_make(RT_RESERVED, RS_AT));
|
||
}
|
||
}
|
||
|
||
current = save;
|
||
}
|
||
else
|
||
{
|
||
info = &COMP_subr_info[PATTERN_index(subr_pattern)];
|
||
|
||
if (nparam_post < info->min_param)
|
||
THROW("Not enough arguments to &1()", info->name);
|
||
else if (nparam_post > info->max_param)
|
||
THROW("Too many arguments to &1()", info->name);
|
||
else if (byref)
|
||
THROW("Subroutine arguments cannot be passed by reference");
|
||
|
||
add_subr(subr_pattern, nparam_post);
|
||
}
|
||
}
|
||
|
||
}
|
||
|
||
|
||
static void analyze_array()
|
||
{
|
||
int i;
|
||
|
||
check_last_first(1);
|
||
|
||
for(i = 0; i < MAX_ARRAY_DIM; i++)
|
||
{
|
||
analyze_expr(0, RS_NONE);
|
||
|
||
if (!PATTERN_is(*current, RS_COMMA))
|
||
break;
|
||
|
||
current++;
|
||
}
|
||
|
||
if (!PATTERN_is(*current, RS_RSQR))
|
||
THROW("Missing comma or ']'");
|
||
current++;
|
||
|
||
add_operator(RS_LSQR, i + 2);
|
||
}
|
||
|
||
|
||
#if 0
|
||
static void analyze_expr_check_first(int op_curr)
|
||
{
|
||
/* On laisse le marqueur RT_FIRST que si on a affaire <20>l'op<6F>ateur '.' */
|
||
/*
|
||
last = get_last_pattern();
|
||
if (PATTERN_is_first(last))
|
||
{
|
||
if (op_curr != RS_PT)
|
||
change_last_pattern(PATTERN_unset_flag(last, RT_FIRST));
|
||
}
|
||
*/
|
||
}
|
||
#endif
|
||
|
||
static void analyze_expr(short priority, short op_main)
|
||
{
|
||
int op_curr;
|
||
int op;
|
||
int prio;
|
||
int nparam;
|
||
|
||
inc_level();
|
||
|
||
op_curr = op_main;
|
||
nparam = (op_main == RS_NONE || op_main == RS_UNARY) ? 0 : 1;
|
||
|
||
if (PATTERN_is(*current, RS_NEW))
|
||
THROW("Cannot use NEW operator there");
|
||
|
||
/* analyse des op<6F>andes */
|
||
|
||
READ_OPERAND:
|
||
|
||
//analyze_expr_check_first(op_curr);
|
||
|
||
analyze_single(op_curr);
|
||
nparam++;
|
||
|
||
if (nparam > MAX_PARAM_OP)
|
||
THROW("Expression too complex. Too many operands");
|
||
|
||
/* Lecture de l'op<6F>ateur */
|
||
|
||
READ_OPERATOR:
|
||
|
||
if (!PATTERN_is_reserved(*current))
|
||
goto OPERATOR_END;
|
||
|
||
op = PATTERN_index(*current);
|
||
|
||
if (!RES_is_operator(op))
|
||
goto OPERATOR_END;
|
||
|
||
if (op == RS_AND || op == RS_OR)
|
||
if (PATTERN_is(current[1], RS_IF))
|
||
goto OPERATOR_END;
|
||
|
||
current++;
|
||
|
||
if (priority)
|
||
prio = priority;
|
||
else if (op_curr == RS_NONE)
|
||
prio = 0;
|
||
else
|
||
prio = RES_priority(op_curr);
|
||
|
||
if (op_curr == RS_NONE)
|
||
{
|
||
if (RES_is_binary(op) || RES_is_n_ary(op))
|
||
{
|
||
op_curr = op;
|
||
goto READ_OPERAND;
|
||
}
|
||
}
|
||
|
||
if (op_curr == op)
|
||
{
|
||
if (!(RES_is_binary(op) && nparam == 2))
|
||
goto READ_OPERAND;
|
||
}
|
||
|
||
if (RES_priority(op) > prio)
|
||
{
|
||
if (op == RS_LSQR)
|
||
analyze_array();
|
||
else if (op == RS_LBRA)
|
||
analyze_call();
|
||
else
|
||
analyze_expr(RES_priority(op), op);
|
||
|
||
goto READ_OPERATOR;
|
||
}
|
||
|
||
if (RES_priority(op) == prio)
|
||
{
|
||
add_operator(op_curr, nparam);
|
||
|
||
if (op == RS_LSQR)
|
||
{
|
||
analyze_array();
|
||
goto READ_OPERATOR;
|
||
}
|
||
else if (op == RS_LBRA)
|
||
{
|
||
analyze_call();
|
||
goto READ_OPERATOR;
|
||
}
|
||
else
|
||
{
|
||
if (RES_is_only(op_curr) || RES_is_only(op))
|
||
THROW("Ambiguous expression. Please use brackets");
|
||
|
||
nparam = 1;
|
||
op_curr = op;
|
||
goto READ_OPERAND;
|
||
}
|
||
}
|
||
|
||
if (RES_priority(op) < prio)
|
||
{
|
||
if ((op_main != RS_NONE) || (priority > 0))
|
||
{
|
||
add_operator(op_curr, nparam);
|
||
current--;
|
||
goto END;
|
||
}
|
||
|
||
add_operator(op_curr, nparam);
|
||
|
||
if (op == RS_LSQR)
|
||
{
|
||
analyze_array();
|
||
nparam = 1;
|
||
op_curr = op_main;
|
||
goto READ_OPERATOR;
|
||
}
|
||
else if (op == RS_LBRA)
|
||
{
|
||
analyze_call();
|
||
nparam = 1;
|
||
op_curr = op_main;
|
||
goto READ_OPERATOR;
|
||
}
|
||
else
|
||
{
|
||
nparam = 1;
|
||
op_curr = op;
|
||
goto READ_OPERAND;
|
||
}
|
||
}
|
||
|
||
dec_level();
|
||
return;
|
||
|
||
OPERATOR_END:
|
||
|
||
//analyze_expr_check_first(op_curr);
|
||
|
||
add_operator(op_curr, nparam);
|
||
|
||
END:
|
||
|
||
dec_level();
|
||
return;
|
||
|
||
}
|
||
|
||
|
||
TRANS_TREE *TRANS_tree(bool check_statement)
|
||
{
|
||
TRANS_TREE *copy;
|
||
#ifdef DEBUG
|
||
int i;
|
||
#endif
|
||
|
||
/*last_pattern = NULL_PATTERN;*/
|
||
|
||
//ARRAY_create(&tree);
|
||
tree_length = 0;
|
||
|
||
current = JOB->current;
|
||
|
||
TRY
|
||
{
|
||
analyze_expr(0, RS_NONE);
|
||
JOB->current = current;
|
||
}
|
||
CATCH
|
||
{
|
||
JOB->current = current;
|
||
PROPAGATE();
|
||
}
|
||
END_TRY
|
||
|
||
#ifdef DEBUG
|
||
printf("\n");
|
||
for (i = 0; i < tree_length; i++)
|
||
{
|
||
printf("[%d] ", i);
|
||
READ_dump_pattern(&tree[i]);
|
||
}
|
||
#endif
|
||
|
||
if (check_statement && (!is_statement()))
|
||
THROW("This expression cannot be a statement");
|
||
|
||
ARRAY_create(©);
|
||
ARRAY_add_many(©, tree_length);
|
||
memcpy(copy, tree, sizeof(PATTERN) * tree_length);
|
||
|
||
return copy;
|
||
}
|
||
|