bc806a189b
[COMPILER] * OPT: The parser now does not store integer numbers in its global symbol table anymore. * OPT: Some other little optimizations here and here. The compiler is now about 5% faster. [ARCHIVER] * NEW: Compile with '-O3' optimization flag. [INFORMER] * NEW: Compile with '-O3' optimization flag. [GB.EVAL] * OPT: The parser now does not store integer numbers in its global symbol table anymore.
622 lines
12 KiB
C
622 lines
12 KiB
C
/***************************************************************************
|
|
|
|
eval_trans_expr.c
|
|
|
|
(c) 2000-2017 Benoît Minisini <g4mba5@gmail.com>
|
|
|
|
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., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA.
|
|
|
|
***************************************************************************/
|
|
|
|
#define __EVAL_TRANS_EXPR_C
|
|
|
|
#define PROJECT_EXEC
|
|
|
|
#include "gb_common.h"
|
|
#include <ctype.h>
|
|
|
|
#include "gb_error.h"
|
|
#include "gb_reserved.h"
|
|
|
|
#include "gb_code.h"
|
|
#include "eval_trans.h"
|
|
#include "eval.h"
|
|
|
|
/*#define DEBUG*/
|
|
|
|
static int subr_array_index = -1;
|
|
static int subr_collection_index = -1;
|
|
|
|
static void find_subr(int *index, const char *name)
|
|
{
|
|
if (*index < 0)
|
|
*index = RESERVED_find_subr(name, strlen(name));
|
|
}
|
|
|
|
static short get_nparam(PATTERN *tree, int *index)
|
|
{
|
|
PATTERN pattern;
|
|
|
|
if (*index < (ARRAY_count(tree) - 1))
|
|
{
|
|
pattern = tree[*index + 1];
|
|
if (PATTERN_is_param(pattern))
|
|
{
|
|
(*index)++;
|
|
return (short)PATTERN_index(pattern);
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void push_integer(int index)
|
|
{
|
|
CODE_push_number(index);
|
|
}
|
|
|
|
|
|
static void push_number(int index)
|
|
{
|
|
TRANS_NUMBER number;
|
|
CLASS_CONST cst;
|
|
//SYMBOL *sym;
|
|
|
|
if (TRANS_get_number(index, &number))
|
|
THROW(E_SYNTAX);
|
|
|
|
if (number.type == T_INTEGER)
|
|
{
|
|
CODE_push_number(number.ival);
|
|
}
|
|
else
|
|
{
|
|
cst.type = number.type;
|
|
if (cst.type == T_FLOAT)
|
|
cst._float.value = number.dval;
|
|
else if (cst.type == T_LONG)
|
|
cst._long.value = number.lval;
|
|
|
|
CODE_push_const(EVAL_add_constant(&cst));
|
|
}
|
|
|
|
if (number.complex)
|
|
CODE_push_complex();
|
|
}
|
|
|
|
|
|
static void push_string(int index, bool trans)
|
|
{
|
|
CLASS_CONST cst;
|
|
SYMBOL *sym;
|
|
int len;
|
|
|
|
if (index == VOID_STRING_INDEX)
|
|
len = 0;
|
|
else
|
|
{
|
|
sym = TABLE_get_symbol(EVAL->string, index);
|
|
len = sym->len;
|
|
}
|
|
|
|
if (len == 0)
|
|
{
|
|
CODE_push_void_string();
|
|
}
|
|
else if (len == 1)
|
|
{
|
|
CODE_push_char(*(sym->name));
|
|
}
|
|
else
|
|
{
|
|
cst.type = trans ? T_CSTRING : T_STRING;
|
|
cst._string.addr = sym->name;
|
|
cst._string.len = len;
|
|
|
|
CODE_push_const(EVAL_add_constant(&cst));
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
static void push_class(int index)
|
|
{
|
|
TRANS_DECL decl;
|
|
|
|
decl.type = TYPE_make(T_STRING, 0, 0);
|
|
decl.index = NO_SYMBOL;
|
|
decl.value = index;
|
|
CODE_push_class(CLASS_add_constant(EVAL->class, &decl));
|
|
}
|
|
*/
|
|
|
|
|
|
static void trans_class(int index)
|
|
{
|
|
SYMBOL *sym = TABLE_get_symbol(EVAL->table, index);
|
|
|
|
if (GB.ExistClassLocal(sym->name))
|
|
CODE_push_class(EVAL_add_class(sym->name));
|
|
else
|
|
{
|
|
THROW("Unknown class");
|
|
}
|
|
}
|
|
|
|
|
|
static void trans_identifier(int index, bool first, bool point)
|
|
{
|
|
SYMBOL *sym = TABLE_get_symbol(EVAL->table, index);
|
|
|
|
if (sym->name[sym->len])
|
|
sym->name[sym->len] = 0;
|
|
|
|
if (point)
|
|
{
|
|
CODE_push_unknown(EVAL_add_unknown(sym->name));
|
|
}
|
|
else if (first && GB.ExistClassLocal(sym->name))
|
|
{
|
|
//printf("%.*s %s\n", sym->symbol.len, sym->symbol.name, isupper(*sym->symbol.name) ? "U" : "l");
|
|
CODE_push_class(EVAL_add_class(sym->name));
|
|
}
|
|
else
|
|
{
|
|
CODE_push_local(EVAL_add_variable(index));
|
|
}
|
|
}
|
|
|
|
|
|
static void trans_subr(int subr, short nparam)
|
|
{
|
|
SUBR_INFO *info = &COMP_subr_info[subr];
|
|
|
|
//fprintf(stderr, "trans_subr: %d: %s: %d %d\n", subr, info->name, info->min_param, info->max_param);
|
|
|
|
if (nparam < info->min_param)
|
|
THROW2("Not enough arguments to &1()", info->name);
|
|
else if (nparam > info->max_param)
|
|
THROW2("Too many arguments to &1()", info->name);
|
|
|
|
CODE_subr(info->opcode, nparam, info->optype, info->max_param == info->min_param);
|
|
}
|
|
|
|
|
|
void TRANS_operation(short op, short nparam, PATTERN previous)
|
|
{
|
|
COMP_INFO *info = &COMP_res_info[op];
|
|
|
|
switch (info->value)
|
|
{
|
|
case OP_PT:
|
|
|
|
/*if (nparam == 0)
|
|
TRANS_use_with();*/
|
|
if (!PATTERN_is_identifier(previous))
|
|
THROW(E_SYNTAX);
|
|
break;
|
|
|
|
case OP_EXCL:
|
|
if (!PATTERN_is_identifier(previous))
|
|
THROW(E_SYNTAX);
|
|
break;
|
|
|
|
case OP_LSQR:
|
|
CODE_push_array(nparam);
|
|
break;
|
|
|
|
case OP_RSQR:
|
|
find_subr(&subr_array_index, ".Array");
|
|
if (nparam > MAX_PARAM_OP)
|
|
CODE_subr(COMP_subr_info[subr_array_index].opcode, MAX_PARAM_OP + 1, CODE_CALL_VARIANT + MAX_PARAM_OP, FALSE);
|
|
else
|
|
trans_subr(subr_array_index, nparam);
|
|
break;
|
|
|
|
case OP_COLON:
|
|
find_subr(&subr_collection_index, ".Collection");
|
|
if (nparam > MAX_PARAM_OP)
|
|
CODE_subr(COMP_subr_info[subr_collection_index].opcode, MAX_PARAM_OP, CODE_CALL_VARIANT + MAX_PARAM_OP - 1, FALSE);
|
|
else
|
|
trans_subr(subr_collection_index, nparam);
|
|
break;
|
|
|
|
case OP_LBRA:
|
|
CODE_call(nparam);
|
|
break;
|
|
|
|
case OP_MINUS:
|
|
if (nparam == 1)
|
|
CODE_op(C_NEG, 0, nparam, TRUE);
|
|
else
|
|
CODE_op(info->code, info->subcode, nparam, TRUE);
|
|
break;
|
|
|
|
default:
|
|
|
|
CODE_op(info->code, info->subcode, nparam, (info->flag != RSF_OPN));
|
|
}
|
|
}
|
|
|
|
|
|
static void trans_expr_from_tree(PATTERN *tree)
|
|
{
|
|
int i;
|
|
short nparam;
|
|
int count;
|
|
PATTERN pattern, prev_pattern; //, next_pattern
|
|
|
|
count = ARRAY_count(tree) - 1;
|
|
pattern = NULL_PATTERN;
|
|
|
|
for (i = 0; i <= count; i++)
|
|
{
|
|
prev_pattern = pattern;
|
|
pattern = tree[i];
|
|
/*if (i < count)
|
|
next_pattern = tree[i + 1];
|
|
else
|
|
next_pattern = NULL_PATTERN;*/
|
|
|
|
if (PATTERN_is_integer(pattern))
|
|
push_integer(PATTERN_signed_index(pattern));
|
|
|
|
if (PATTERN_is_number(pattern))
|
|
push_number(PATTERN_index(pattern));
|
|
|
|
else if (PATTERN_is_string(pattern))
|
|
push_string(PATTERN_index(pattern), FALSE);
|
|
|
|
else if (PATTERN_is_tstring(pattern))
|
|
push_string(PATTERN_index(pattern), TRUE);
|
|
|
|
else if (PATTERN_is_identifier(pattern))
|
|
trans_identifier(PATTERN_index(pattern), PATTERN_is_first(pattern), PATTERN_is_point(pattern));
|
|
|
|
else if (PATTERN_is_class(pattern))
|
|
trans_class(PATTERN_index(pattern));
|
|
|
|
else if (PATTERN_is_subr(pattern))
|
|
{
|
|
nparam = get_nparam(tree, &i);
|
|
trans_subr(PATTERN_index(pattern), nparam);
|
|
}
|
|
|
|
else if (PATTERN_is_reserved(pattern))
|
|
{
|
|
if (PATTERN_is(pattern, RS_TRUE))
|
|
{
|
|
CODE_push_boolean(TRUE);
|
|
}
|
|
else if (PATTERN_is(pattern, RS_FALSE))
|
|
{
|
|
CODE_push_boolean(FALSE);
|
|
}
|
|
else if (PATTERN_is(pattern, RS_NULL))
|
|
{
|
|
CODE_push_null();
|
|
}
|
|
else if (PATTERN_is(pattern, RS_ME))
|
|
{
|
|
/*if (FUNCTION_is_static(EVAL->func))
|
|
THROW("ME cannot be used in a static function");*/
|
|
|
|
CODE_push_me(TRUE);
|
|
}
|
|
else if (PATTERN_is(pattern, RS_SUPER))
|
|
{
|
|
/*if (FUNCTION_is_static(EVAL->func))
|
|
THROW("ME cannot be used in a static function");*/
|
|
|
|
CODE_push_super(TRUE);
|
|
}
|
|
else if (PATTERN_is(pattern, RS_LAST))
|
|
{
|
|
CODE_push_last();
|
|
}
|
|
/*
|
|
else if (PATTERN_is(pattern, RS_AT))
|
|
{
|
|
if (!CODE_popify_last())
|
|
THROW("Invalid output parameter");
|
|
}
|
|
*/
|
|
else if (PATTERN_is(pattern, RS_COMMA))
|
|
{
|
|
CODE_drop();
|
|
}
|
|
/*else if (PATTERN_is(pattern, RS_ERROR))
|
|
{
|
|
TRANS_subr(TS_SUBR_ERROR, 0);
|
|
}*/
|
|
else if (PATTERN_is(pattern, RS_OPTIONAL))
|
|
{
|
|
CODE_push_void();
|
|
}
|
|
else if (PATTERN_is(pattern, RS_PINF))
|
|
{
|
|
CODE_push_inf(FALSE);
|
|
}
|
|
else if (PATTERN_is(pattern, RS_MINF))
|
|
{
|
|
CODE_push_inf(TRUE);
|
|
}
|
|
else
|
|
{
|
|
nparam = get_nparam(tree, &i);
|
|
TRANS_operation((short)PATTERN_index(pattern), nparam, prev_pattern);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
static void trans_new(void)
|
|
{
|
|
int index;
|
|
int i, nparam;
|
|
bool array = FALSE;
|
|
bool event = FALSE;
|
|
bool collection = FALSE;
|
|
|
|
if (PATTERN_is_identifier(*EVAL->current))
|
|
{
|
|
index = PATTERN_index(*EVAL->current);
|
|
CODE_push_class(CLASS_add_class(EVAL->class, index));
|
|
nparam = 1;
|
|
}
|
|
else if (PATTERN_is_type(*EVAL->current))
|
|
{
|
|
if (PATTERN_is(EVAL->current[1], RS_LSQR))
|
|
{
|
|
CODE_push_number(RES_get_type(PATTERN_index(*EVAL->current)));
|
|
nparam = 1;
|
|
}
|
|
else
|
|
THROW("Cannot instanciate native types");
|
|
}
|
|
|
|
EVAL->current++;
|
|
|
|
if (PATTERN_is(*EVAL->current, RS_LSQR))
|
|
{
|
|
if (collection)
|
|
THROW("Array declaration is forbidden with typed collection");
|
|
|
|
EVAL->current++;
|
|
|
|
for (i = 0;; i++)
|
|
{
|
|
if (i > MAX_ARRAY_DIM)
|
|
THROW("Too many dimensions");
|
|
|
|
TRANS_expression(FALSE);
|
|
nparam++;
|
|
|
|
if (PATTERN_is(*EVAL->current, RS_RSQR))
|
|
break;
|
|
|
|
if (!PATTERN_is(*EVAL->current, RS_COMMA))
|
|
THROW("Comma missing");
|
|
|
|
EVAL->current++;
|
|
}
|
|
|
|
EVAL->current++;
|
|
array = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if (PATTERN_is(*EVAL->current, RS_LBRA))
|
|
{
|
|
EVAL->current++;
|
|
|
|
for(;;)
|
|
{
|
|
if (nparam > MAX_PARAM_FUNC)
|
|
THROW("Too many arguments");
|
|
|
|
if (PATTERN_is(*EVAL->current, RS_AT))
|
|
THROW("NEW cannot have output parameters");
|
|
|
|
TRANS_expression(FALSE);
|
|
nparam++;
|
|
|
|
if (PATTERN_is(*EVAL->current, RS_RBRA))
|
|
break;
|
|
|
|
if (!PATTERN_is(*EVAL->current, RS_COMMA))
|
|
THROW("Comma missing");
|
|
|
|
EVAL->current++;
|
|
}
|
|
|
|
EVAL->current++;
|
|
}
|
|
|
|
if (PATTERN_is(*EVAL->current, RS_AS))
|
|
{
|
|
EVAL->current++;
|
|
TRANS_expression(FALSE);
|
|
nparam++;
|
|
event = TRUE;
|
|
}
|
|
|
|
/*
|
|
CODE_call(nparam, FALSE);
|
|
CODE_drop();
|
|
*/
|
|
}
|
|
|
|
if (collection)
|
|
CODE_new(nparam, TRUE, event);
|
|
else
|
|
CODE_new(nparam, array, event);
|
|
}
|
|
#endif
|
|
|
|
void TRANS_expression()
|
|
{
|
|
TRANS_tree();
|
|
|
|
trans_expr_from_tree(EVAL->tree);
|
|
|
|
ARRAY_delete(&EVAL->tree);
|
|
}
|
|
|
|
|
|
void TRANS_reference(void)
|
|
{
|
|
TRANS_expression();
|
|
|
|
if (!CODE_popify_last())
|
|
THROW("Invalid assignment");
|
|
|
|
EVAL->assign_code = EVAL->code[EVAL->ncode - 1];
|
|
}
|
|
|
|
static void trans_operation(short op, short nparam, PATTERN previous)
|
|
{
|
|
COMP_INFO *info = &COMP_res_info[op];
|
|
CODE_op(info->code, info->subcode, nparam, (info->flag != RSF_OPN));
|
|
}
|
|
|
|
bool TRANS_affectation(void)
|
|
{
|
|
/*static TRANS_STATEMENT statement[] = {
|
|
//{ RS_NEW, TRANS_new },
|
|
{ RS_OPEN, TRANS_open },
|
|
{ RS_SHELL, TRANS_shell },
|
|
{ RS_EXEC, TRANS_exec },
|
|
{ RS_RAISE, TRANS_raise },
|
|
{ RS_PIPE, TRANS_pipe },
|
|
{ RS_LOCK, TRANS_lock },
|
|
{ RS_NONE, NULL }
|
|
};*/
|
|
|
|
//TRANS_STATEMENT *st;
|
|
PATTERN *look = EVAL->current;
|
|
PATTERN *left, *expr, *after;
|
|
int niv = 0;
|
|
bool equal = FALSE;
|
|
//bool stat = FALSE;
|
|
int op;
|
|
|
|
for(;;)
|
|
{
|
|
if (PATTERN_is_newline(*look) || PATTERN_is_end(*look))
|
|
break;
|
|
|
|
if (PATTERN_is(*look, RS_LBRA) || PATTERN_is(*look, RS_LSQR))
|
|
{
|
|
niv++;
|
|
}
|
|
else if (PATTERN_is(*look, RS_RBRA) || PATTERN_is(*look, RS_RSQR))
|
|
{
|
|
if (niv > 0)
|
|
niv--;
|
|
}
|
|
else if (niv == 0)
|
|
{
|
|
if (PATTERN_is(*look, RS_EQUAL))
|
|
{
|
|
equal = TRUE;
|
|
op = RS_NONE;
|
|
break;
|
|
}
|
|
else if (PATTERN_is_reserved(*look) && RES_is_assignment(PATTERN_index(*look)))
|
|
{
|
|
equal = TRUE;
|
|
op = RES_get_assignment_operator(PATTERN_index(*look));
|
|
break;
|
|
}
|
|
}
|
|
|
|
look++;
|
|
}
|
|
|
|
if (!equal)
|
|
return FALSE;
|
|
|
|
left = EVAL->current;
|
|
*look++ = PATTERN_make(RT_NEWLINE, 0);
|
|
expr = look;
|
|
|
|
EVAL->current = expr;
|
|
|
|
/*if (op == RS_NONE && (PATTERN_is_reserved(*EVAL->current)))
|
|
{
|
|
if (PATTERN_is(*EVAL->current, RS_NEW))
|
|
{
|
|
EVAL->current++;
|
|
TRANS_in_affectation++;
|
|
TRANS_new();
|
|
TRANS_in_affectation--;
|
|
stat = TRUE;
|
|
}
|
|
else
|
|
{
|
|
for (st = statement; st->id; st++)
|
|
{
|
|
if (PATTERN_is(*EVAL->current, st->id))
|
|
{
|
|
EVAL->current++;
|
|
TRANS_in_affectation++;
|
|
(*st->func)();
|
|
TRANS_in_affectation--;
|
|
stat = TRUE;
|
|
}
|
|
}
|
|
}
|
|
}*/
|
|
|
|
//if (!stat)
|
|
//{
|
|
if (op != RS_NONE)
|
|
{
|
|
EVAL->current = left;
|
|
TRANS_expression();
|
|
}
|
|
|
|
EVAL->current = expr;
|
|
TRANS_expression();
|
|
after = EVAL->current;
|
|
|
|
if (op != RS_NONE)
|
|
{
|
|
/*if (op == RS_AMP)
|
|
CODE_string_add();*/
|
|
trans_operation(op, 2, NULL_PATTERN);
|
|
}
|
|
//}
|
|
|
|
after = EVAL->current;
|
|
|
|
/*if (dup)
|
|
CODE_dup();*/
|
|
|
|
CODE_dup(); // So that Assign() returns the assigned value
|
|
|
|
EVAL->current = left;
|
|
TRANS_reference();
|
|
|
|
EVAL->current = after;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|