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gstreamer/gst/goom/goomsl_yacc.y
Bastien Nocera 9b2e72cabd gst/goom/Makefile.am: Don't compile lex or yacc outputs with warnings, but add other CFLAGS 
Original commit message from CVS:
* gst/goom/Makefile.am: Don't compile lex or yacc outputs
with warnings, but add other CFLAGS
* gst/goom/goomsl.c (gsl_instr_set_namespace),
(gsl_instr_add_param), (iflow_execute), (gsl_enternamespace),
(calculate_labels), (gsl_read_file):
* gst/goom/goomsl_lex.l:
* gst/goom/goomsl_yacc.y:
* gst/goom/plugin_info.c: Remove a few live printf, and
fprintf, replace exit() calls with g_assert_not_reached()
if it not optimal for a library
2008-02-23 03:10:55 +00:00

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/**
* copyright 2004, Jean-Christophe Hoelt <jeko@ios-software.com>
*
* This program is released under the terms of the GNU Lesser General Public Licence.
*/
%{
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#include "goomsl.h"
#include "goomsl_private.h"
#define STRUCT_ALIGNMENT 16
/* #define VERBOSE */
int yylex(void);
void yyerror(char *);
extern GoomSL *currentGoomSL;
static NodeType *nodeNew(const char *str, int type, int line_number);
static NodeType *nodeClone(NodeType *node);
static void nodeFreeInternals(NodeType *node);
static void nodeFree(NodeType *node);
static void commit_node(NodeType *node, int releaseIfTemp);
static void precommit_node(NodeType *node);
static NodeType *new_constInt(const char *str, int line_number);
static NodeType *new_constFloat(const char *str, int line_number);
static NodeType *new_constPtr(const char *str, int line_number);
static NodeType *new_var(const char *str, int line_number);
static NodeType *new_nop(const char *str);
static NodeType *new_op(const char *str, int type, int nbOp);
static int allocateLabel();
static int allocateTemp();
static void releaseTemp(int n);
static void releaseAllTemps();
static int is_tmp_expr(NodeType *node) {
if (node->str) {
return (!strncmp(node->str,"_i_tmp_",7))
|| (!strncmp(node->str,"_f_tmp_",7))
|| (!strncmp(node->str,"_p_tmp",7));
}
return 0;
}
/* pre: is_tmp_expr(node); */
static int get_tmp_id(NodeType *node) { return atoi((node->str)+5); }
static int is_commutative_expr(int itype)
{ /* {{{ */
return (itype == INSTR_ADD)
|| (itype == INSTR_MUL)
|| (itype == INSTR_ISEQUAL);
} /* }}} */
static void GSL_PUT_LABEL(char *name, int line_number)
{ /* {{{ */
#ifdef VERBOSE
printf("label %s\n", name);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "label", INSTR_LABEL, 1, line_number);
gsl_instr_add_param(currentGoomSL->instr, name, TYPE_LABEL);
} /* }}} */
static void GSL_PUT_JUMP(char *name, int line_number)
{ /* {{{ */
#ifdef VERBOSE
printf("jump %s\n", name);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "jump", INSTR_JUMP, 1, line_number);
gsl_instr_add_param(currentGoomSL->instr, name, TYPE_LABEL);
} /* }}} */
static void GSL_PUT_JXXX(char *name, char *iname, int instr_id, int line_number)
{ /* {{{ */
#ifdef VERBOSE
printf("%s %s\n", iname, name);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, iname, instr_id, 1, line_number);
gsl_instr_add_param(currentGoomSL->instr, name, TYPE_LABEL);
} /* }}} */
static void GSL_PUT_JZERO(char *name,int line_number)
{ /* {{{ */
GSL_PUT_JXXX(name,"jzero.i",INSTR_JZERO,line_number);
} /* }}} */
static void GSL_PUT_JNZERO(char *name, int line_number)
{ /* {{{ */
GSL_PUT_JXXX(name,"jnzero.i",INSTR_JNZERO,line_number);
} /* }}} */
/* Structures Management */
#define ALIGN_ADDR(_addr,_align) {\
if (_align>1) {\
int _dec = (_addr%_align);\
if (_dec != 0) _addr += _align - _dec;\
}}
/* */
void gsl_prepare_struct(GSL_Struct *s, int s_align, int i_align, int f_align)
{
int i;
int consumed = 0;
int iblk=0, fblk=0;
s->iBlock[0].size = 0;
s->iBlock[0].data = 0;
s->fBlock[0].size = 0;
s->fBlock[0].data = 0;
/* Prepare sub-struct and calculate space needed for their storage */
for (i = 0; i < s->nbFields; ++i)
{
if (s->fields[i]->type < FIRST_RESERVED)
{
int j=0;
GSL_Struct *substruct = currentGoomSL->gsl_struct[s->fields[i]->type];
consumed += sizeof(int); /* stocke le prefix */
ALIGN_ADDR(consumed, s_align);
s->fields[i]->offsetInStruct = consumed;
gsl_prepare_struct(substruct, s_align, i_align, f_align);
for(j=0;substruct->iBlock[j].size>0;++j) {
s->iBlock[iblk].data = consumed + substruct->iBlock[j].data;
s->iBlock[iblk].size = substruct->iBlock[j].size;
iblk++;
}
for(j=0;substruct->fBlock[j].size>0;++j) {
s->fBlock[fblk].data = consumed + substruct->fBlock[j].data;
s->fBlock[fblk].size = substruct->fBlock[j].size;
fblk++;
}
consumed += substruct->size;
}
}
/* Then prepare integers */
ALIGN_ADDR(consumed, i_align);
for (i = 0; i < s->nbFields; ++i)
{
if (s->fields[i]->type == INSTR_INT)
{
if (s->iBlock[iblk].size == 0) {
s->iBlock[iblk].size = 1;
s->iBlock[iblk].data = consumed;
} else {
s->iBlock[iblk].size += 1;
}
s->fields[i]->offsetInStruct = consumed;
consumed += sizeof(int);
}
}
iblk++;
s->iBlock[iblk].size = 0;
s->iBlock[iblk].data = 0;
/* Then prepare floats */
ALIGN_ADDR(consumed, f_align);
for (i = 0; i < s->nbFields; ++i)
{
if (s->fields[i]->type == INSTR_FLOAT)
{
if (s->fBlock[fblk].size == 0) {
s->fBlock[fblk].size = 1;
s->fBlock[fblk].data = consumed;
} else {
s->fBlock[fblk].size += 1;
}
s->fields[i]->offsetInStruct = consumed;
consumed += sizeof(int);
}
}
fblk++;
s->fBlock[fblk].size = 0;
s->fBlock[fblk].data = 0;
/* Finally prepare pointers */
ALIGN_ADDR(consumed, i_align);
for (i = 0; i < s->nbFields; ++i)
{
if (s->fields[i]->type == INSTR_PTR)
{
s->fields[i]->offsetInStruct = consumed;
consumed += sizeof(int);
}
}
s->size = consumed;
}
/* Returns the ID of a struct from its name */
int gsl_get_struct_id(const char *name) /* {{{ */
{
HashValue *ret = goom_hash_get(currentGoomSL->structIDS, name);
if (ret != NULL) return ret->i;
return -1;
} /* }}} */
/* Adds the definition of a struct */
void gsl_add_struct(const char *name, GSL_Struct *gsl_struct) /* {{{ */
{
/* Prepare the struct: ie calculate internal storage format */
gsl_prepare_struct(gsl_struct, STRUCT_ALIGNMENT, STRUCT_ALIGNMENT, STRUCT_ALIGNMENT);
/* If the struct does not already exists */
if (gsl_get_struct_id(name) < 0)
{
/* adds it */
int id = currentGoomSL->nbStructID++;
goom_hash_put_int(currentGoomSL->structIDS, name, id);
if (currentGoomSL->gsl_struct_size <= id) {
currentGoomSL->gsl_struct_size *= 2;
currentGoomSL->gsl_struct = (GSL_Struct**)realloc(currentGoomSL->gsl_struct,
sizeof(GSL_Struct*) * currentGoomSL->gsl_struct_size);
}
currentGoomSL->gsl_struct[id] = gsl_struct;
}
} /* }}} */
/* Creates a field for a struct */
GSL_StructField *gsl_new_struct_field(const char *name, int type)
{
GSL_StructField *field = (GSL_StructField*)malloc(sizeof(GSL_StructField));
strcpy(field->name, name);
field->type = type;
return field;
}
/* Create as field for a struct which will be a struct itself */
GSL_StructField *gsl_new_struct_field_struct(const char *name, const char *type)
{
GSL_StructField *field = gsl_new_struct_field(name, gsl_get_struct_id(type));
if (field->type < 0) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Unknown structure: '%s'\n",
currentGoomSL->num_lines, type);
exit(1);
#endif
}
return field;
}
/* Creates a Struct */
GSL_Struct *gsl_new_struct(GSL_StructField *field)
{
GSL_Struct *s = (GSL_Struct*)malloc(sizeof(GSL_Struct));
s->nbFields = 1;
s->fields[0] = field;
return s;
}
/* Adds a field to a struct */
void gsl_add_struct_field(GSL_Struct *s, GSL_StructField *field)
{
s->fields[s->nbFields++] = field;
}
int gsl_type_of_var(GoomHash *ns, const char *name)
{
char type_of[256];
HashValue *hv;
sprintf(type_of, "__type_of_%s", name);
hv = goom_hash_get(ns, type_of);
if (hv != NULL)
return hv->i;
fprintf(stderr, "ERROR: Unknown variable type: '%s'\n", name);
return -1;
}
static void gsl_declare_var(GoomHash *ns, const char *name, int type, void *space)
{
char type_of[256];
if (name[0] == '@') { ns = currentGoomSL->vars; }
if (space == NULL) {
switch (type) {
case INSTR_INT:
case INSTR_FLOAT:
case INSTR_PTR:
space = goom_heap_malloc_with_alignment(currentGoomSL->data_heap,
sizeof(int), sizeof(int));
break;
#if 0
case -1:
fprintf(stderr, "What the fuck!\n");
exit(1);
#endif
default: /* On a un struct_id */
space = goom_heap_malloc_with_alignment_prefixed(currentGoomSL->data_heap,
currentGoomSL->gsl_struct[type]->size, STRUCT_ALIGNMENT, sizeof(int));
}
}
goom_hash_put_ptr(ns, name, (void*)space);
sprintf(type_of, "__type_of_%s", name);
goom_hash_put_int(ns, type_of, type);
/* Ensuite le hack: on ajoute les champs en tant que variables. */
if (type < FIRST_RESERVED)
{
int i;
GSL_Struct *gsl_struct = currentGoomSL->gsl_struct[type];
((int*)space)[-1] = type; /* stockage du type dans le prefixe de structure */
for (i = 0; i < gsl_struct->nbFields; ++i)
{
char full_name[256];
char *cspace = (char*)space + gsl_struct->fields[i]->offsetInStruct;
sprintf(full_name, "%s.%s", name, gsl_struct->fields[i]->name);
gsl_declare_var(ns, full_name, gsl_struct->fields[i]->type, cspace);
}
}
}
/* Declare a variable which will be a struct */
static void gsl_struct_decl(GoomHash *namespace, const char *struct_name, const char *name)
{
int struct_id = gsl_get_struct_id(struct_name);
gsl_declare_var(namespace, name, struct_id, NULL);
}
static void gsl_float_decl_global(const char *name)
{
gsl_declare_var(currentGoomSL->vars, name, INSTR_FLOAT, NULL);
}
static void gsl_int_decl_global(const char *name)
{
gsl_declare_var(currentGoomSL->vars, name, INSTR_INT, NULL);
}
static void gsl_ptr_decl_global(const char *name)
{
gsl_declare_var(currentGoomSL->vars, name, INSTR_PTR, NULL);
}
static void gsl_struct_decl_global_from_id(const char *name, int id)
{
gsl_declare_var(currentGoomSL->vars, name, id, NULL);
}
/* FLOAT */
static void gsl_float_decl_local(const char *name)
{
gsl_declare_var(currentGoomSL->namespaces[currentGoomSL->currentNS], name, INSTR_FLOAT, NULL);
}
/* INT */
static void gsl_int_decl_local(const char *name)
{
gsl_declare_var(currentGoomSL->namespaces[currentGoomSL->currentNS], name, INSTR_INT, NULL);
}
/* PTR */
static void gsl_ptr_decl_local(const char *name)
{
gsl_declare_var(currentGoomSL->namespaces[currentGoomSL->currentNS], name, INSTR_PTR, NULL);
}
/* STRUCT */
static void gsl_struct_decl_local(const char *struct_name, const char *name)
{
gsl_struct_decl(currentGoomSL->namespaces[currentGoomSL->currentNS],struct_name,name);
}
static void commit_test2(NodeType *set,const char *type, int instr);
static NodeType *new_call(const char *name, NodeType *affect_list);
/* SETTER */
static NodeType *new_set(NodeType *lvalue, NodeType *expression)
{ /* {{{ */
NodeType *set = new_op("set", OPR_SET, 2);
set->unode.opr.op[0] = lvalue;
set->unode.opr.op[1] = expression;
return set;
} /* }}} */
static void commit_set(NodeType *set)
{ /* {{{ */
commit_test2(set,"set",INSTR_SET);
} /* }}} */
/* PLUS_EQ */
static NodeType *new_plus_eq(NodeType *lvalue, NodeType *expression) /* {{{ */
{
NodeType *set = new_op("plus_eq", OPR_PLUS_EQ, 2);
set->unode.opr.op[0] = lvalue;
set->unode.opr.op[1] = expression;
return set;
}
static void commit_plus_eq(NodeType *set)
{
precommit_node(set->unode.opr.op[1]);
#ifdef VERBOSE
printf("add %s %s\n", set->unode.opr.op[0]->str, set->unode.opr.op[1]->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "add", INSTR_ADD, 2, set->line_number);
commit_node(set->unode.opr.op[0],0);
commit_node(set->unode.opr.op[1],1);
} /* }}} */
/* SUB_EQ */
static NodeType *new_sub_eq(NodeType *lvalue, NodeType *expression) /* {{{ */
{
NodeType *set = new_op("sub_eq", OPR_SUB_EQ, 2);
set->unode.opr.op[0] = lvalue;
set->unode.opr.op[1] = expression;
return set;
}
static void commit_sub_eq(NodeType *set)
{
precommit_node(set->unode.opr.op[1]);
#ifdef VERBOSE
printf("sub %s %s\n", set->unode.opr.op[0]->str, set->unode.opr.op[1]->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "sub", INSTR_SUB, 2, set->line_number);
commit_node(set->unode.opr.op[0],0);
commit_node(set->unode.opr.op[1],1);
} /* }}} */
/* MUL_EQ */
static NodeType *new_mul_eq(NodeType *lvalue, NodeType *expression) /* {{{ */
{
NodeType *set = new_op("mul_eq", OPR_MUL_EQ, 2);
set->unode.opr.op[0] = lvalue;
set->unode.opr.op[1] = expression;
return set;
}
static void commit_mul_eq(NodeType *set)
{
precommit_node(set->unode.opr.op[1]);
#ifdef VERBOSE
printf("mul %s %s\n", set->unode.opr.op[0]->str, set->unode.opr.op[1]->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "mul", INSTR_MUL, 2, set->line_number);
commit_node(set->unode.opr.op[0],0);
commit_node(set->unode.opr.op[1],1);
} /* }}} */
/* DIV_EQ */
static NodeType *new_div_eq(NodeType *lvalue, NodeType *expression) /* {{{ */
{
NodeType *set = new_op("div_eq", OPR_DIV_EQ, 2);
set->unode.opr.op[0] = lvalue;
set->unode.opr.op[1] = expression;
return set;
}
static void commit_div_eq(NodeType *set)
{
precommit_node(set->unode.opr.op[1]);
#ifdef VERBOSE
printf("div %s %s\n", set->unode.opr.op[0]->str, set->unode.opr.op[1]->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "div", INSTR_DIV, 2, set->line_number);
commit_node(set->unode.opr.op[0],0);
commit_node(set->unode.opr.op[1],1);
} /* }}} */
/* commodity method for add, mult, ... */
static void precommit_expr(NodeType *expr, const char *type, int instr_id)
{ /* {{{ */
NodeType *tmp, *tmpcpy;
int toAdd;
/* compute "left" and "right" */
switch (expr->unode.opr.nbOp) {
case 2:
precommit_node(expr->unode.opr.op[1]);
case 1:
precommit_node(expr->unode.opr.op[0]);
}
if (is_tmp_expr(expr->unode.opr.op[0])) {
tmp = expr->unode.opr.op[0];
toAdd = 1;
}
else if (is_commutative_expr(instr_id) && (expr->unode.opr.nbOp==2) && is_tmp_expr(expr->unode.opr.op[1])) {
tmp = expr->unode.opr.op[1];
toAdd = 0;
}
else {
char stmp[256];
/* declare a temporary variable to store the result */
if (expr->unode.opr.op[0]->type == CONST_INT_NODE) {
sprintf(stmp,"_i_tmp_%i",allocateTemp());
gsl_int_decl_global(stmp);
}
else if (expr->unode.opr.op[0]->type == CONST_FLOAT_NODE) {
sprintf(stmp,"_f_tmp%i",allocateTemp());
gsl_float_decl_global(stmp);
}
else if (expr->unode.opr.op[0]->type == CONST_PTR_NODE) {
sprintf(stmp,"_p_tmp%i",allocateTemp());
gsl_ptr_decl_global(stmp);
}
else {
int type = gsl_type_of_var(expr->unode.opr.op[0]->vnamespace, expr->unode.opr.op[0]->str);
if (type == INSTR_FLOAT) {
sprintf(stmp,"_f_tmp_%i",allocateTemp());
gsl_float_decl_global(stmp);
}
else if (type == INSTR_PTR) {
sprintf(stmp,"_p_tmp_%i",allocateTemp());
gsl_ptr_decl_global(stmp);
}
else if (type == INSTR_INT) {
sprintf(stmp,"_i_tmp_%i",allocateTemp());
gsl_int_decl_global(stmp);
}
else if (type == -1) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n",
expr->line_number, expr->unode.opr.op[0]->str);
exit(1);
#endif
}
else { /* type is a struct_id */
sprintf(stmp,"_s_tmp_%i",allocateTemp());
gsl_struct_decl_global_from_id(stmp,type);
}
}
tmp = new_var(stmp,expr->line_number);
/* set the tmp to the value of "op1" */
tmpcpy = nodeClone(tmp);
commit_node(new_set(tmp,expr->unode.opr.op[0]),0);
toAdd = 1;
tmp = tmpcpy;
}
/* add op2 to tmp */
#ifdef VERBOSE
if (expr->unode.opr.nbOp == 2)
printf("%s %s %s\n", type, tmp->str, expr->unode.opr.op[toAdd]->str);
else
printf("%s %s\n", type, tmp->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, type, instr_id, expr->unode.opr.nbOp, expr->line_number);
tmpcpy = nodeClone(tmp);
commit_node(tmp,0);
if (expr->unode.opr.nbOp == 2) {
commit_node(expr->unode.opr.op[toAdd],1);
}
/* redefine the ADD node now as the computed variable */
nodeFreeInternals(expr);
*expr = *tmpcpy;
free(tmpcpy);
} /* }}} */
static NodeType *new_expr1(const char *name, int id, NodeType *expr1)
{ /* {{{ */
NodeType *add = new_op(name, id, 1);
add->unode.opr.op[0] = expr1;
return add;
} /* }}} */
static NodeType *new_expr2(const char *name, int id, NodeType *expr1, NodeType *expr2)
{ /* {{{ */
NodeType *add = new_op(name, id, 2);
add->unode.opr.op[0] = expr1;
add->unode.opr.op[1] = expr2;
return add;
} /* }}} */
/* ADD */
static NodeType *new_add(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("add", OPR_ADD, expr1, expr2);
}
static void precommit_add(NodeType *add) {
precommit_expr(add,"add",INSTR_ADD);
} /* }}} */
/* SUB */
static NodeType *new_sub(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("sub", OPR_SUB, expr1, expr2);
}
static void precommit_sub(NodeType *sub) {
precommit_expr(sub,"sub",INSTR_SUB);
} /* }}} */
/* NEG */
static NodeType *new_neg(NodeType *expr) { /* {{{ */
NodeType *zeroConst = NULL;
if (expr->type == CONST_INT_NODE)
zeroConst = new_constInt("0", currentGoomSL->num_lines);
else if (expr->type == CONST_FLOAT_NODE)
zeroConst = new_constFloat("0.0", currentGoomSL->num_lines);
else if (expr->type == CONST_PTR_NODE) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not negate const pointer.\n",
currentGoomSL->num_lines);
exit(1);
#endif
}
else {
int type = gsl_type_of_var(expr->vnamespace, expr->str);
if (type == INSTR_FLOAT)
zeroConst = new_constFloat("0.0", currentGoomSL->num_lines);
else if (type == INSTR_PTR) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not negate pointer.\n",
currentGoomSL->num_lines);
exit(1);
#endif
}
else if (type == INSTR_INT)
zeroConst = new_constInt("0", currentGoomSL->num_lines);
else if (type == -1) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n",
expr->line_number, expr->unode.opr.op[0]->str);
exit(1);
#endif
}
else { /* type is a struct_id */
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not negate struct '%s'\n",
expr->line_number, expr->str);
exit(1);
#endif
}
}
return new_expr2("sub", OPR_SUB, zeroConst, expr);
}
/* }}} */
/* MUL */
static NodeType *new_mul(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("mul", OPR_MUL, expr1, expr2);
}
static void precommit_mul(NodeType *mul) {
precommit_expr(mul,"mul",INSTR_MUL);
} /* }}} */
/* DIV */
static NodeType *new_div(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("div", OPR_DIV, expr1, expr2);
}
static void precommit_div(NodeType *mul) {
precommit_expr(mul,"div",INSTR_DIV);
} /* }}} */
/* CALL EXPRESSION */
static NodeType *new_call_expr(const char *name, NodeType *affect_list) { /* {{{ */
NodeType *call = new_call(name,affect_list);
NodeType *node = new_expr1(name, OPR_CALL_EXPR, call);
node->vnamespace = gsl_find_namespace(name);
if (node->vnamespace == NULL)
/* fprintf(stderr, "ERROR: Line %d, No return type for: '%s'\n", currentGoomSL->num_lines, name); */
return node;
}
static void precommit_call_expr(NodeType *call) {
char stmp[256];
NodeType *tmp,*tmpcpy;
int type = gsl_type_of_var(call->vnamespace, call->str);
if (type == INSTR_FLOAT) {
sprintf(stmp,"_f_tmp_%i",allocateTemp());
gsl_float_decl_global(stmp);
}
else if (type == INSTR_PTR) {
sprintf(stmp,"_p_tmp_%i",allocateTemp());
gsl_ptr_decl_global(stmp);
}
else if (type == INSTR_INT) {
sprintf(stmp,"_i_tmp_%i",allocateTemp());
gsl_int_decl_global(stmp);
}
else if (type == -1) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n",
call->line_number, call->str);
exit(1);
#endif
}
else { /* type is a struct_id */
sprintf(stmp,"_s_tmp_%i",allocateTemp());
gsl_struct_decl_global_from_id(stmp,type);
}
tmp = new_var(stmp,call->line_number);
commit_node(call->unode.opr.op[0],0);
tmpcpy = nodeClone(tmp);
commit_node(new_set(tmp,new_var(call->str,call->line_number)),0);
nodeFreeInternals(call);
*call = *tmpcpy;
free(tmpcpy);
} /* }}} */
static void commit_test2(NodeType *set,const char *type, int instr)
{ /* {{{ */
NodeType *tmp;
char stmp[256];
precommit_node(set->unode.opr.op[0]);
precommit_node(set->unode.opr.op[1]);
tmp = set->unode.opr.op[0];
stmp[0] = 0;
if (set->unode.opr.op[0]->type == CONST_INT_NODE) {
sprintf(stmp,"_i_tmp_%i",allocateTemp());
gsl_int_decl_global(stmp);
}
else if (set->unode.opr.op[0]->type == CONST_FLOAT_NODE) {
sprintf(stmp,"_f_tmp%i",allocateTemp());
gsl_float_decl_global(stmp);
}
else if (set->unode.opr.op[0]->type == CONST_PTR_NODE) {
sprintf(stmp,"_p_tmp%i",allocateTemp());
gsl_ptr_decl_global(stmp);
}
if (stmp[0]) {
NodeType *tmpcpy;
tmp = new_var(stmp, set->line_number);
tmpcpy = nodeClone(tmp);
commit_node(new_set(tmp,set->unode.opr.op[0]),0);
tmp = tmpcpy;
}
#ifdef VERBOSE
printf("%s %s %s\n", type, tmp->str, set->unode.opr.op[1]->str);
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, type, instr, 2, set->line_number);
commit_node(tmp,instr!=INSTR_SET);
commit_node(set->unode.opr.op[1],1);
} /* }}} */
/* NOT */
static NodeType *new_not(NodeType *expr1) { /* {{{ */
return new_expr1("not", OPR_NOT, expr1);
}
static void commit_not(NodeType *set)
{
commit_node(set->unode.opr.op[0],0);
#ifdef VERBOSE
printf("not\n");
#endif
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "not", INSTR_NOT, 1, set->line_number);
gsl_instr_add_param(currentGoomSL->instr, "|dummy|", TYPE_LABEL);
} /* }}} */
/* EQU */
static NodeType *new_equ(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("isequal", OPR_EQU, expr1, expr2);
}
static void commit_equ(NodeType *mul) {
commit_test2(mul,"isequal",INSTR_ISEQUAL);
} /* }}} */
/* INF */
static NodeType *new_low(NodeType *expr1, NodeType *expr2) { /* {{{ */
return new_expr2("islower", OPR_LOW, expr1, expr2);
}
static void commit_low(NodeType *mul) {
commit_test2(mul,"islower",INSTR_ISLOWER);
} /* }}} */
/* WHILE */
static NodeType *new_while(NodeType *expression, NodeType *instr) { /* {{{ */
NodeType *node = new_op("while", OPR_WHILE, 2);
node->unode.opr.op[0] = expression;
node->unode.opr.op[1] = instr;
return node;
}
static void commit_while(NodeType *node)
{
int lbl = allocateLabel();
char start_while[1024], test_while[1024];
sprintf(start_while, "|start_while_%d|", lbl);
sprintf(test_while, "|test_while_%d|", lbl);
GSL_PUT_JUMP(test_while,node->line_number);
GSL_PUT_LABEL(start_while,node->line_number);
/* code */
commit_node(node->unode.opr.op[1],0);
GSL_PUT_LABEL(test_while,node->line_number);
commit_node(node->unode.opr.op[0],0);
GSL_PUT_JNZERO(start_while,node->line_number);
} /* }}} */
/* FOR EACH */
static NodeType *new_static_foreach(NodeType *var, NodeType *var_list, NodeType *instr) { /* {{{ */
NodeType *node = new_op("for", OPR_FOREACH, 3);
node->unode.opr.op[0] = var;
node->unode.opr.op[1] = var_list;
node->unode.opr.op[2] = instr;
node->line_number = currentGoomSL->num_lines;
return node;
}
static void commit_foreach(NodeType *node)
{
NodeType *cur = node->unode.opr.op[1];
char tmp_func[256], tmp_loop[256];
int lbl = allocateLabel();
sprintf(tmp_func, "|foreach_func_%d|", lbl);
sprintf(tmp_loop, "|foreach_loop_%d|", lbl);
GSL_PUT_JUMP(tmp_loop, node->line_number);
GSL_PUT_LABEL(tmp_func, node->line_number);
precommit_node(node->unode.opr.op[2]);
commit_node(node->unode.opr.op[2], 0);
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "ret", INSTR_RET, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, "|dummy|", TYPE_LABEL);
#ifdef VERBOSE
printf("ret\n");
#endif
GSL_PUT_LABEL(tmp_loop, node->line_number);
while (cur != NULL)
{
NodeType *x, *var;
/* 1: x=var */
x = nodeClone(node->unode.opr.op[0]);
var = nodeClone(cur->unode.opr.op[0]);
commit_node(new_set(x, var),0);
/* 2: instr */
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "call", INSTR_CALL, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, tmp_func, TYPE_LABEL);
#ifdef VERBOSE
printf("call %s\n", tmp_func);
#endif
/* 3: var=x */
x = nodeClone(node->unode.opr.op[0]);
var = cur->unode.opr.op[0];
commit_node(new_set(var, x),0);
cur = cur->unode.opr.op[1];
}
nodeFree(node->unode.opr.op[0]);
} /* }}} */
/* IF */
static NodeType *new_if(NodeType *expression, NodeType *instr) { /* {{{ */
NodeType *node = new_op("if", OPR_IF, 2);
node->unode.opr.op[0] = expression;
node->unode.opr.op[1] = instr;
return node;
}
static void commit_if(NodeType *node) {
char slab[1024];
sprintf(slab, "|eif%d|", allocateLabel());
commit_node(node->unode.opr.op[0],0);
GSL_PUT_JZERO(slab,node->line_number);
/* code */
commit_node(node->unode.opr.op[1],0);
GSL_PUT_LABEL(slab,node->line_number);
} /* }}} */
/* BLOCK */
static NodeType *new_block(NodeType *lastNode) { /* {{{ */
NodeType *blk = new_op("block", OPR_BLOCK, 2);
blk->unode.opr.op[0] = new_nop("start_of_block");
blk->unode.opr.op[1] = lastNode;
return blk;
}
static void commit_block(NodeType *node) {
commit_node(node->unode.opr.op[0]->unode.opr.next,0);
} /* }}} */
/* FUNCTION INTRO */
static NodeType *new_function_intro(const char *name) { /* {{{ */
char stmp[256];
if (strlen(name) < 200) {
sprintf(stmp, "|__func_%s|", name);
}
return new_op(stmp, OPR_FUNC_INTRO, 0);
}
static void commit_function_intro(NodeType *node) {
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "label", INSTR_LABEL, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_LABEL);
#ifdef VERBOSE
printf("label %s\n", node->str);
#endif
} /* }}} */
/* FUNCTION OUTRO */
static NodeType *new_function_outro() { /* {{{ */
return new_op("ret", OPR_FUNC_OUTRO, 0);
}
static void commit_function_outro(NodeType *node) {
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "ret", INSTR_RET, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, "|dummy|", TYPE_LABEL);
releaseAllTemps();
#ifdef VERBOSE
printf("ret\n");
#endif
} /* }}} */
/* AFFECTATION LIST */
static NodeType *new_affec_list(NodeType *set, NodeType *next) /* {{{ */
{
NodeType *node = new_op("affect_list", OPR_AFFECT_LIST, 2);
node->unode.opr.op[0] = set;
node->unode.opr.op[1] = next;
return node;
}
static NodeType *new_affect_list_after(NodeType *affect_list)
{
NodeType *ret = NULL;
NodeType *cur = affect_list;
while(cur != NULL) {
NodeType *set = cur->unode.opr.op[0];
NodeType *next = cur->unode.opr.op[1];
NodeType *lvalue = set->unode.opr.op[0];
NodeType *expression = set->unode.opr.op[1];
if ((lvalue->str[0] == '&') && (expression->type == VAR_NODE)) {
NodeType *nset = new_set(nodeClone(expression), nodeClone(lvalue));
ret = new_affec_list(nset, ret);
}
cur = next;
}
return ret;
}
static void commit_affect_list(NodeType *node)
{
NodeType *cur = node;
while(cur != NULL) {
NodeType *set = cur->unode.opr.op[0];
precommit_node(set->unode.opr.op[0]);
precommit_node(set->unode.opr.op[1]);
cur = cur->unode.opr.op[1];
}
cur = node;
while(cur != NULL) {
NodeType *set = cur->unode.opr.op[0];
commit_node(set,0);
cur = cur->unode.opr.op[1];
}
} /* }}} */
/* VAR LIST */
static NodeType *new_var_list(NodeType *var, NodeType *next) /* {{{ */
{
NodeType *node = new_op("var_list", OPR_VAR_LIST, 2);
node->unode.opr.op[0] = var;
node->unode.opr.op[1] = next;
return node;
}
static void commit_var_list(NodeType *node)
{
} /* }}} */
/* FUNCTION CALL */
static NodeType *new_call(const char *name, NodeType *affect_list) { /* {{{ */
HashValue *fval;
fval = goom_hash_get(currentGoomSL->functions, name);
if (!fval) {
gsl_declare_task(name);
fval = goom_hash_get(currentGoomSL->functions, name);
}
if (!fval) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Could not find function %s\n", currentGoomSL->num_lines, name);
exit(1);
return NULL;
#endif
}
else {
ExternalFunctionStruct *gef = (ExternalFunctionStruct*)fval->ptr;
if (gef->is_extern) {
NodeType *node = new_op(name, OPR_EXT_CALL, 1);
node->unode.opr.op[0] = affect_list;
return node;
}
else {
NodeType *node;
char stmp[256];
if (strlen(name) < 200) {
sprintf(stmp, "|__func_%s|", name);
}
node = new_op(stmp, OPR_CALL, 1);
node->unode.opr.op[0] = affect_list;
return node;
}
}
}
static void commit_ext_call(NodeType *node) {
NodeType *alafter = new_affect_list_after(node->unode.opr.op[0]);
commit_node(node->unode.opr.op[0],0);
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "extcall", INSTR_EXT_CALL, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_VAR);
#ifdef VERBOSE
printf("extcall %s\n", node->str);
#endif
commit_node(alafter,0);
}
static void commit_call(NodeType *node) {
NodeType *alafter = new_affect_list_after(node->unode.opr.op[0]);
commit_node(node->unode.opr.op[0],0);
currentGoomSL->instr = gsl_instr_init(currentGoomSL, "call", INSTR_CALL, 1, node->line_number);
gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_LABEL);
#ifdef VERBOSE
printf("call %s\n", node->str);
#endif
commit_node(alafter,0);
} /* }}} */
/** **/
static NodeType *rootNode = 0; /* TODO: reinitialiser a chaque compilation. */
static NodeType *lastNode = 0;
static NodeType *gsl_append(NodeType *curNode) {
if (curNode == 0) return 0; /* {{{ */
if (lastNode)
lastNode->unode.opr.next = curNode;
lastNode = curNode;
while(lastNode->unode.opr.next) lastNode = lastNode->unode.opr.next;
if (rootNode == 0)
rootNode = curNode;
return curNode;
} /* }}} */
#if 1
int allocateTemp() {
return allocateLabel();
}
void releaseAllTemps() {}
void releaseTemp(int n) {}
#else
static int nbTemp = 0;
static int *tempArray = 0;
static int tempArraySize = 0;
int allocateTemp() { /* TODO: allocateITemp, allocateFTemp */
int i = 0; /* {{{ */
if (tempArray == 0) {
tempArraySize = 256;
tempArray = (int*)malloc(tempArraySize * sizeof(int));
}
while (1) {
int j;
for (j=0;j<nbTemp;++j) {
if (tempArray[j] == i) break;
}
if (j == nbTemp) {
if (nbTemp == tempArraySize) {
tempArraySize *= 2;
tempArray = (int*)realloc(tempArray,tempArraySize * sizeof(int));
}
tempArray[nbTemp++] = i;
return i;
}
i++;
}
} /* }}} */
void releaseAllTemps() {
nbTemp = 0; /* {{{ */
} /* }}} */
void releaseTemp(int n) {
int j; /* {{{ */
for (j=0;j<nbTemp;++j) {
if (tempArray[j] == n) {
tempArray[j] = tempArray[--nbTemp];
break;
}
}
} /* }}} */
#endif
static int lastLabel = 0;
int allocateLabel() {
return ++lastLabel; /* {{{ */
} /* }}} */
void gsl_commit_compilation()
{ /* {{{ */
commit_node(rootNode,0);
rootNode = 0;
lastNode = 0;
} /* }}} */
void precommit_node(NodeType *node)
{ /* {{{ */
/* do here stuff for expression.. for exemple */
if (node->type == OPR_NODE)
switch(node->unode.opr.type) {
case OPR_ADD: precommit_add(node); break;
case OPR_SUB: precommit_sub(node); break;
case OPR_MUL: precommit_mul(node); break;
case OPR_DIV: precommit_div(node); break;
case OPR_CALL_EXPR: precommit_call_expr(node); break;
}
} /* }}} */
void commit_node(NodeType *node, int releaseIfTmp)
{ /* {{{ */
if (node == 0) return;
switch(node->type) {
case OPR_NODE:
switch(node->unode.opr.type) {
case OPR_SET: commit_set(node); break;
case OPR_PLUS_EQ: commit_plus_eq(node); break;
case OPR_SUB_EQ: commit_sub_eq(node); break;
case OPR_MUL_EQ: commit_mul_eq(node); break;
case OPR_DIV_EQ: commit_div_eq(node); break;
case OPR_IF: commit_if(node); break;
case OPR_WHILE: commit_while(node); break;
case OPR_BLOCK: commit_block(node); break;
case OPR_FUNC_INTRO: commit_function_intro(node); break;
case OPR_FUNC_OUTRO: commit_function_outro(node); break;
case OPR_CALL: commit_call(node); break;
case OPR_EXT_CALL: commit_ext_call(node); break;
case OPR_EQU: commit_equ(node); break;
case OPR_LOW: commit_low(node); break;
case OPR_NOT: commit_not(node); break;
case OPR_AFFECT_LIST: commit_affect_list(node); break;
case OPR_FOREACH: commit_foreach(node); break;
case OPR_VAR_LIST: commit_var_list(node); break;
#ifdef VERBOSE
case EMPTY_NODE: printf("NOP\n"); break;
#endif
}
commit_node(node->unode.opr.next,0); /* recursive for the moment, maybe better to do something iterative? */
break;
case VAR_NODE: gsl_instr_set_namespace(currentGoomSL->instr, node->vnamespace);
gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_VAR); break;
case CONST_INT_NODE: gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_INTEGER); break;
case CONST_FLOAT_NODE: gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_FLOAT); break;
case CONST_PTR_NODE: gsl_instr_add_param(currentGoomSL->instr, node->str, TYPE_PTR); break;
}
if (releaseIfTmp && is_tmp_expr(node))
releaseTemp(get_tmp_id(node));
nodeFree(node);
} /* }}} */
NodeType *nodeNew(const char *str, int type, int line_number) {
NodeType *node = (NodeType*)malloc(sizeof(NodeType)); /* {{{ */
node->type = type;
node->str = (char*)malloc(strlen(str)+1);
node->vnamespace = NULL;
node->line_number = line_number;
strcpy(node->str, str);
return node;
} /* }}} */
static NodeType *nodeClone(NodeType *node) {
NodeType *ret = nodeNew(node->str, node->type, node->line_number); /* {{{ */
ret->vnamespace = node->vnamespace;
ret->unode = node->unode;
return ret;
} /* }}} */
void nodeFreeInternals(NodeType *node) {
free(node->str); /* {{{ */
} /* }}} */
void nodeFree(NodeType *node) {
nodeFreeInternals(node); /* {{{ */
free(node);
} /* }}} */
NodeType *new_constInt(const char *str, int line_number) {
NodeType *node = nodeNew(str, CONST_INT_NODE, line_number); /* {{{ */
node->unode.constInt.val = atoi(str);
return node;
} /* }}} */
NodeType *new_constPtr(const char *str, int line_number) {
NodeType *node = nodeNew(str, CONST_PTR_NODE, line_number); /* {{{ */
node->unode.constPtr.id = strtol(str,NULL,0);
return node;
} /* }}} */
NodeType *new_constFloat(const char *str, int line_number) {
NodeType *node = nodeNew(str, CONST_FLOAT_NODE, line_number); /* {{{ */
node->unode.constFloat.val = atof(str);
return node;
} /* }}} */
NodeType *new_var(const char *str, int line_number) {
NodeType *node = nodeNew(str, VAR_NODE, line_number); /* {{{ */
node->vnamespace = gsl_find_namespace(str);
if (node->vnamespace == 0) {
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, Variable not found: '%s'\n", line_number, str);
exit(1);
#endif
}
return node;
} /* }}} */
NodeType *new_nop(const char *str) {
NodeType *node = new_op(str, EMPTY_NODE, 0); /* {{{ */
return node;
} /* }}} */
NodeType *new_op(const char *str, int type, int nbOp) {
int i; /* {{{ */
NodeType *node = nodeNew(str, OPR_NODE, currentGoomSL->num_lines);
node->unode.opr.next = 0;
node->unode.opr.type = type;
node->unode.opr.nbOp = nbOp;
for (i=0;i<nbOp;++i) node->unode.opr.op[i] = 0;
return node;
} /* }}} */
void gsl_declare_global_variable(int type, char *name) {
switch(type){
case -1: break;
case FLOAT_TK:gsl_float_decl_global(name);break;
case INT_TK: gsl_int_decl_global(name);break;
case PTR_TK: gsl_ptr_decl_global(name);break;
default:
{
int id = type - 1000;
gsl_struct_decl_global_from_id(name,id);
}
}
}
%}
%union {
int intValue;
float floatValue;
char charValue;
char strValue[2048];
NodeType *nPtr;
GoomHash *namespace;
GSL_Struct *gsl_struct;
GSL_StructField *gsl_struct_field;
};
%token <strValue> LTYPE_INTEGER
%token <strValue> LTYPE_FLOAT
%token <strValue> LTYPE_VAR
%token <strValue> LTYPE_PTR
%token PTR_TK INT_TK FLOAT_TK DECLARE EXTERNAL WHILE DO NOT PLUS_EQ SUB_EQ DIV_EQ MUL_EQ SUP_EQ LOW_EQ NOT_EQ STRUCT FOR IN
%type <intValue> return_type
%type <nPtr> expression constValue instruction test func_call func_call_expression
%type <nPtr> start_block affectation_list affectation_in_list affectation declaration
%type <nPtr> var_list_content var_list
%type <strValue> task_name ext_task_name
%type <namespace> leave_namespace
%type <gsl_struct> struct_members
%type <gsl_struct_field> struct_member
%left '\n'
%left PLUS_EQ SUB_EQ MUL_EQ DIV_EQ
%left NOT
%left '=' '<' '>'
%left '+' '-'
%left '/' '*'
%%
/* -------------- Global architechture of a GSL program ------------*/
gsl: gsl_code function_outro gsl_def_functions ;
gsl_code: gsl_code instruction { gsl_append($2); }
| gsl_code EXTERNAL '<' ext_task_name '>' return_type '\n' leave_namespace { gsl_declare_global_variable($6,$4); }
| gsl_code EXTERNAL '<' ext_task_name ':' arglist '>' return_type '\n' leave_namespace { gsl_declare_global_variable($8,$4); }
| gsl_code DECLARE '<' task_name '>' return_type '\n' leave_namespace { gsl_declare_global_variable($6,$4); }
| gsl_code DECLARE '<' task_name ':' arglist '>' return_type '\n' leave_namespace { gsl_declare_global_variable($8,$4); }
| gsl_code struct_declaration
| gsl_code '\n'
|
;
/* ------------- Declaration of a structure ------------ */
struct_declaration: STRUCT '<' LTYPE_VAR ':' struct_members '>' '\n' { gsl_add_struct($3, $5); }
;
struct_members: opt_nl struct_member { $$ = gsl_new_struct($2); }
| struct_members ',' opt_nl struct_member { $$ = $1; gsl_add_struct_field($1, $4); }
;
struct_member: INT_TK LTYPE_VAR { $$ = gsl_new_struct_field($2, INSTR_INT); }
| FLOAT_TK LTYPE_VAR { $$ = gsl_new_struct_field($2, INSTR_FLOAT); }
| PTR_TK LTYPE_VAR { $$ = gsl_new_struct_field($2, INSTR_PTR); }
| LTYPE_VAR LTYPE_VAR { $$ = gsl_new_struct_field_struct($2, $1); }
;
/* ------------- Fonction declarations -------------- */
ext_task_name: LTYPE_VAR { gsl_declare_external_task($1); gsl_enternamespace($1); strcpy($$,$1); }
;
task_name: LTYPE_VAR { gsl_declare_task($1); gsl_enternamespace($1); strcpy($$,$1); strcpy($$,$1); }
;
return_type: { $$=-1; }
| ':' INT_TK { $$=INT_TK; }
| ':' FLOAT_TK { $$=FLOAT_TK; }
| ':' PTR_TK { $$=PTR_TK; }
| ':' LTYPE_VAR { $$= 1000 + gsl_get_struct_id($2); }
;
arglist: empty_declaration
| empty_declaration ',' arglist
;
/* ------------- Fonction definition -------------- */
gsl_def_functions: gsl_def_functions function
|
;
function: function_intro gsl_code function_outro { gsl_leavenamespace(); }
function_intro: '<' task_name '>' return_type '\n' { gsl_append(new_function_intro($2));
gsl_declare_global_variable($4,$2); }
| '<' task_name ':' arglist '>' return_type '\n' { gsl_append(new_function_intro($2));
gsl_declare_global_variable($6,$2); }
;
function_outro: { gsl_append(new_function_outro()); } ;
leave_namespace: { $$ = gsl_leavenamespace(); };
/* ------------ Variable declaration ---------------- */
declaration: FLOAT_TK LTYPE_VAR '=' expression { gsl_float_decl_local($2); $$ = new_set(new_var($2,currentGoomSL->num_lines), $4); }
| INT_TK LTYPE_VAR '=' expression { gsl_int_decl_local($2); $$ = new_set(new_var($2,currentGoomSL->num_lines), $4); }
| PTR_TK LTYPE_VAR '=' expression { gsl_ptr_decl_local($2); $$ = new_set(new_var($2,currentGoomSL->num_lines), $4); }
| LTYPE_VAR LTYPE_VAR '=' expression { gsl_struct_decl_local($1,$2); $$ = new_set(new_var($2,currentGoomSL->num_lines), $4); }
| empty_declaration { $$ = 0; }
;
empty_declaration: FLOAT_TK LTYPE_VAR { gsl_float_decl_local($2); }
| INT_TK LTYPE_VAR { gsl_int_decl_local($2); }
| PTR_TK LTYPE_VAR { gsl_ptr_decl_local($2); }
| LTYPE_VAR LTYPE_VAR { gsl_struct_decl_local($1,$2); }
;
/* -------------- Instructions and Expressions ------------------ */
instruction: affectation '\n' { $$ = $1; }
| declaration '\n' { $$ = $1; }
| '(' test ')' '?' opt_nl instruction { $$ = new_if($2,$6); }
| WHILE test opt_nl DO opt_nl instruction { $$ = new_while($2,$6); }
| '{' '\n' start_block gsl_code '}' '\n' { lastNode = $3->unode.opr.op[1]; $$=$3; }
| func_call { $$ = $1; }
| LTYPE_VAR PLUS_EQ expression { $$ = new_plus_eq(new_var($1,currentGoomSL->num_lines),$3); }
| LTYPE_VAR SUB_EQ expression { $$ = new_sub_eq(new_var($1,currentGoomSL->num_lines),$3); }
| LTYPE_VAR MUL_EQ expression { $$ = new_mul_eq(new_var($1,currentGoomSL->num_lines),$3); }
| LTYPE_VAR DIV_EQ expression { $$ = new_div_eq(new_var($1,currentGoomSL->num_lines),$3); }
| FOR LTYPE_VAR IN var_list DO instruction { $$ = new_static_foreach(new_var($2, currentGoomSL->num_lines), $4, $6); }
;
var_list: '(' var_list_content ')' { $$ = $2; }
;
var_list_content: LTYPE_VAR { $$ = new_var_list(new_var($1,currentGoomSL->num_lines), NULL); }
| LTYPE_VAR var_list_content { $$ = new_var_list(new_var($1,currentGoomSL->num_lines), $2); }
;
affectation: LTYPE_VAR '=' expression { $$ = new_set(new_var($1,currentGoomSL->num_lines),$3); } ;
start_block: { $$ = new_block(lastNode); lastNode = $$->unode.opr.op[0]; }
;
expression: LTYPE_VAR { $$ = new_var($1,currentGoomSL->num_lines); }
| constValue { $$ = $1; }
| expression '*' expression { $$ = new_mul($1,$3); }
| expression '/' expression { $$ = new_div($1,$3); }
| expression '+' expression { $$ = new_add($1,$3); }
| expression '-' expression { $$ = new_sub($1,$3); }
| '-' expression { $$ = new_neg($2); }
| '(' expression ')' { $$ = $2; }
| func_call_expression { $$ = $1; }
;
test: expression '=' expression { $$ = new_equ($1,$3); }
| expression '<' expression { $$ = new_low($1,$3); }
| expression '>' expression { $$ = new_low($3,$1); }
| expression SUP_EQ expression { $$ = new_not(new_low($1,$3)); }
| expression LOW_EQ expression { $$ = new_not(new_low($3,$1)); }
| expression NOT_EQ expression { $$ = new_not(new_equ($1,$3)); }
| NOT test { $$ = new_not($2); }
;
constValue: LTYPE_FLOAT { $$ = new_constFloat($1,currentGoomSL->num_lines); }
| LTYPE_INTEGER { $$ = new_constInt($1,currentGoomSL->num_lines); }
| LTYPE_PTR { $$ = new_constPtr($1,currentGoomSL->num_lines); }
;
/* ---------------- Function Calls ------------------ */
func_call: task_name '\n' leave_namespace { $$ = new_call($1,NULL); }
| task_name ':' affectation_list '\n' leave_namespace { $$ = new_call($1,$3); }
| '[' task_name ']' '\n' leave_namespace { $$ = new_call($2,NULL); }
| '[' task_name ':' affectation_list ']' '\n' leave_namespace { $$ = new_call($2,$4); }
;
func_call_expression:
'[' task_name leave_namespace ']' { $$ = new_call_expr($2,NULL); }
| '[' task_name ':' affectation_list ']' leave_namespace { $$ = new_call_expr($2,$4); }
;
affectation_list: affectation_in_list affectation_list { $$ = new_affec_list($1,$2); }
| affectation_in_list { $$ = new_affec_list($1,NULL); }
affectation_in_list: LTYPE_VAR '=' leave_namespace expression {
gsl_reenternamespace($3);
$$ = new_set(new_var($1,currentGoomSL->num_lines),$4);
}
| ':' leave_namespace expression {
gsl_reenternamespace($2);
$$ = new_set(new_var("&this", currentGoomSL->num_lines),$3);
}
;
/* ------------ Misc ---------- */
opt_nl: '\n' | ;
%%
void yyerror(char *str)
{ /* {{{ */
g_assert_not_reached ();
#if 0
fprintf(stderr, "ERROR: Line %d, %s\n", currentGoomSL->num_lines, str);
currentGoomSL->compilationOK = 0;
exit(1);
#endif
} /* }}} */
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