diff options
Diffstat (limited to 'gst/goom/goomsl_yacc.y')
| -rw-r--r-- | gst/goom/goomsl_yacc.y | 1405 |
1 files changed, 1405 insertions, 0 deletions
diff --git a/gst/goom/goomsl_yacc.y b/gst/goom/goomsl_yacc.y new file mode 100644 index 00000000..c424a50a --- /dev/null +++ b/gst/goom/goomsl_yacc.y @@ -0,0 +1,1405 @@ +/** + * 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 "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) { + fprintf(stderr, "ERROR: Line %d, Unknown structure: '%s'\n", + currentGoomSL->num_lines, type); + exit(1); + } + 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; + case -1: + fprintf(stderr, "What the fuck!\n"); + exit(1); + 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) { + fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n", + expr->line_number, expr->unode.opr.op[0]->str); + exit(1); + } + 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) { + fprintf(stderr, "ERROR: Line %d, Could not negate const pointer.\n", + currentGoomSL->num_lines); + exit(1); + } + 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) { + fprintf(stderr, "ERROR: Line %d, Could not negate pointer.\n", + currentGoomSL->num_lines); + exit(1); + } + else if (type == INSTR_INT) + zeroConst = new_constInt("0", currentGoomSL->num_lines); + else if (type == -1) { + fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n", + expr->line_number, expr->unode.opr.op[0]->str); + exit(1); + } + else { /* type is a struct_id */ + fprintf(stderr, "ERROR: Line %d, Could not negate struct '%s'\n", + expr->line_number, expr->str); + exit(1); + } + } + 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) { + fprintf(stderr, "ERROR: Line %d, Could not find variable '%s'\n", + call->line_number, call->str); + exit(1); + } + 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) { + fprintf(stderr, "ERROR: Line %d, Could not find function %s\n", currentGoomSL->num_lines, name); + exit(1); + return NULL; + } + 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) { + fprintf(stderr, "ERROR: Line %d, Variable not found: '%s'\n", line_number, str); + exit(1); + } + 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) +{ /* {{{ */ + fprintf(stderr, "ERROR: Line %d, %s\n", currentGoomSL->num_lines, str); + currentGoomSL->compilationOK = 0; + exit(1); +} /* }}} */ + |