Merge branch 'slimconfigure'
[m6w6/ext-psi] / src / types / num_exp.c
index 88db742eb6df4329e293b5c15c6886eb8694c740..4b8846a6312cd56b00727755f57f87c066a4e5e1 100644 (file)
 #include <assert.h>
 
 #include "data.h"
+#include "context.h"
 #include "call.h"
 #include "calc.h"
 
-struct psi_num_exp *psi_num_exp_init(token_t t, void *num)
+struct psi_num_exp *psi_num_exp_init_ternary(token_t op,
+               struct psi_num_exp *cond, struct psi_num_exp *truthy,
+               struct psi_num_exp *falsy)
 {
        struct psi_num_exp *exp = calloc(1, sizeof(*exp));
 
-       switch (exp->type = t) {
-       case PSI_T_NUMBER:
-       case PSI_T_NSNAME:
-               exp->data.numb = strdup(num);
-               break;
-       case PSI_T_NAME:
-               exp->data.dvar = num;
-               break;
-       default:
-               assert(0);
-       }
+       exp->op = op;
+       exp->data.t.cond = cond;
+       exp->data.t.truthy = truthy;
+       exp->data.t.falsy = falsy;
 
        return exp;
 }
 
-struct psi_num_exp *psi_num_exp_copy(struct psi_num_exp *exp)
+struct psi_num_exp *psi_num_exp_init_binary(token_t op,
+               struct psi_num_exp *lhs, struct psi_num_exp *rhs)
 {
-       struct psi_num_exp *num = calloc(1, sizeof(*num));
+       struct psi_num_exp *exp = calloc(1, sizeof(*exp));
 
-       *num = *exp;
+       exp->op = op;
+       exp->data.b.lhs = lhs;
+       exp->data.b.rhs = rhs;
 
-       if (num->token) {
-               num->token = psi_token_copy(num->token);
-       }
-       if (num->operand) {
-               num->operand = psi_num_exp_copy(num->operand);
+       return exp;
+}
+
+struct psi_num_exp *psi_num_exp_init_unary(token_t op,
+               struct psi_num_exp *u)
+{
+       struct psi_num_exp *exp = calloc(1, sizeof(*exp));
+
+       exp->op = op;
+       exp->data.u = u;
+
+       return exp;
+}
+
+struct psi_num_exp *psi_num_exp_init_num(struct psi_number *n)
+{
+       struct psi_num_exp *exp = calloc(1, sizeof(*exp));
+
+       exp->op = PSI_T_NUMBER;
+       exp->data.n = n;
+
+       return exp;
+}
+
+struct psi_num_exp *psi_num_exp_init_cast(struct psi_decl_type *typ,
+               struct psi_num_exp *num)
+{
+       struct psi_num_exp *exp = calloc(1, sizeof(*exp));
+
+       exp->op = PSI_T_CAST;
+       exp->data.c.typ = typ;
+       exp->data.c.num = num;
+
+       return exp;
+}
+
+struct psi_num_exp *psi_num_exp_copy(struct psi_num_exp *exp)
+{
+       struct psi_num_exp *cpy;
+
+       if (!exp) {
+               return NULL;
        }
 
-       switch (num->type) {
-       case PSI_T_INT64:
-       case PSI_T_DOUBLE:
-       case PSI_T_ENUM:
-       case PSI_T_CONST:
-               break;
+       cpy = malloc(sizeof(*cpy));
+       *cpy = *exp;
+
+       switch (exp->op) {
        case PSI_T_NUMBER:
-       case PSI_T_NSNAME:
-               num->data.numb = strdup(num->data.numb);
+               cpy->data.n = psi_number_copy(exp->data.n);
+               break;
+
+       case PSI_T_CAST:
+               cpy->data.c.typ = psi_decl_type_copy(exp->data.c.typ);
+               cpy->data.c.num = psi_num_exp_copy(exp->data.c.num);
+               break;
+
+       case PSI_T_NOT:
+       case PSI_T_TILDE:
+       case PSI_T_LPAREN:
+               cpy->data.u = psi_num_exp_copy(exp->data.u);
+               break;
+
+       case PSI_T_OR:
+       case PSI_T_AND:
+
+       case PSI_T_CMP_EQ:
+       case PSI_T_CMP_NE:
+       case PSI_T_CMP_LE:
+       case PSI_T_CMP_GE:
+       case PSI_T_RCHEVR:
+       case PSI_T_LCHEVR:
+
+       case PSI_T_PIPE:
+       case PSI_T_CARET:
+       case PSI_T_AMPERSAND:
+       case PSI_T_LSHIFT:
+       case PSI_T_RSHIFT:
+       case PSI_T_PLUS:
+       case PSI_T_MINUS:
+       case PSI_T_ASTERISK:
+       case PSI_T_SLASH:
+       case PSI_T_MODULO:
+               cpy->data.b.lhs = psi_num_exp_copy(exp->data.b.lhs);
+               cpy->data.b.rhs = psi_num_exp_copy(exp->data.b.rhs);
                break;
-       case PSI_T_NAME:
-               num->data.dvar = psi_decl_var_copy(num->data.dvar);
+
+       case PSI_T_IIF:
+               cpy->data.t.cond = psi_num_exp_copy(exp->data.t.cond);
+               cpy->data.t.truthy = psi_num_exp_copy(exp->data.t.truthy);
+               cpy->data.t.falsy = psi_num_exp_copy(exp->data.t.falsy);
                break;
+
        default:
                assert(0);
        }
-       return num;
+
+       if (exp->token) {
+               cpy->token = psi_token_copy(exp->token);
+       }
+
+       return cpy;
 }
 
-void psi_num_exp_free(struct psi_num_exp **exp_ptr)
+void psi_num_exp_free(struct psi_num_exp **c_ptr)
 {
-       if (*exp_ptr) {
-               struct psi_num_exp *exp = *exp_ptr;
+       if (*c_ptr) {
+               struct psi_num_exp *c = *c_ptr;
 
-               *exp_ptr = NULL;
-               if (exp->token) {
-                       free(exp->token);
-               }
-               switch (exp->type) {
-               case PSI_T_INT64:
-               case PSI_T_DOUBLE:
-               case PSI_T_ENUM:
-               case PSI_T_CONST:
-                       break;
-               case PSI_T_NSNAME:
+               *c_ptr = NULL;
+
+               switch (c->op) {
                case PSI_T_NUMBER:
-                       free(exp->data.numb);
+                       psi_number_free(&c->data.n);
                        break;
-               case PSI_T_NAME:
-                       psi_decl_var_free(&exp->data.dvar);
+
+               case PSI_T_CAST:
+                       psi_decl_type_free(&c->data.c.typ);
+                       psi_num_exp_free(&c->data.c.num);
                        break;
+
+               case PSI_T_NOT:
+               case PSI_T_TILDE:
+               case PSI_T_LPAREN:
+                       psi_num_exp_free(&c->data.u);
+                       break;
+
+               case PSI_T_OR:
+               case PSI_T_AND:
+
+               case PSI_T_CMP_EQ:
+               case PSI_T_CMP_NE:
+               case PSI_T_CMP_LE:
+               case PSI_T_CMP_GE:
+               case PSI_T_RCHEVR:
+               case PSI_T_LCHEVR:
+
+               case PSI_T_PIPE:
+               case PSI_T_CARET:
+               case PSI_T_AMPERSAND:
+               case PSI_T_LSHIFT:
+               case PSI_T_RSHIFT:
+               case PSI_T_PLUS:
+               case PSI_T_MINUS:
+               case PSI_T_ASTERISK:
+               case PSI_T_SLASH:
+               case PSI_T_MODULO:
+                       psi_num_exp_free(&c->data.b.lhs);
+                       psi_num_exp_free(&c->data.b.rhs);
+                       break;
+
+               case PSI_T_IIF:
+                       psi_num_exp_free(&c->data.t.cond);
+                       psi_num_exp_free(&c->data.t.truthy);
+                       psi_num_exp_free(&c->data.t.falsy);
+                       break;
+
                default:
                        assert(0);
                }
-               if (exp->operand) {
-                       psi_num_exp_free(&exp->operand);
+
+               if (c->token) {
+                       free(c->token);
                }
-               free(exp);
+
+               free(c);
        }
 }
 
-static inline wint_t psi_num_exp_op_tok(token_t op)
+static inline const char *psi_num_exp_op_tok(token_t op)
 {
        switch (op) {
+       case PSI_T_NOT:
+               return "!";
+       case PSI_T_TILDE:
+               return "~";
+       case PSI_T_LPAREN:
+               return "(";
+       case PSI_T_CAST:
+               return "(cast)";
+
+       case PSI_T_PIPE:
+               return "|";
+       case PSI_T_CARET:
+               return "^";
+       case PSI_T_AMPERSAND:
+               return "&";
+
        case PSI_T_LSHIFT:
-               return L'«';
+               return "<<";
        case PSI_T_RSHIFT:
-               return L'»';
+               return ">>";
+
        case PSI_T_PLUS:
-               return L'+';
+               return "+";
        case PSI_T_MINUS:
-               return L'-';
+               return "-";
+
        case PSI_T_ASTERISK:
-               return L'*';
+               return "*";
        case PSI_T_SLASH:
-               return L'/';
-       case PSI_T_AMPERSAND:
-               return L'&';
-       case PSI_T_CARET:
-               return L'^';
-       case PSI_T_PIPE:
-               return L'|';
+               return "/";
+       case PSI_T_MODULO:
+               return "%";
+
+       case PSI_T_OR:
+               return "||";
+       case PSI_T_AND:
+               return "&&";
+
+       case PSI_T_CMP_EQ:
+               return "==";
+       case PSI_T_CMP_NE:
+               return "!=";
+       case PSI_T_CMP_LE:
+               return "<=";
+       case PSI_T_CMP_GE:
+               return ">=";
+       case PSI_T_RCHEVR:
+               return ">";
+       case PSI_T_LCHEVR:
+               return "<";
+
+       case PSI_T_IIF:
+               return "?";
+
        default:
                assert(0);
        }
        return 0;
 }
 
-void psi_num_exp_dump(int fd, struct psi_num_exp *exp)
+struct psi_plist *psi_num_exp_tokens(struct psi_num_exp *exp,
+               struct psi_plist *list)
 {
-       while (exp) {
-               switch (exp->type) {
-               case PSI_T_INT64:
-                       dprintf(fd, "%" PRId64, exp->data.ival.i64);
-                       break;
-               case PSI_T_DOUBLE:
-                       dprintf(fd, "%F", exp->data.ival.dval);
-                       break;
-               case PSI_T_NUMBER:
-               case PSI_T_NSNAME:
-                       dprintf(fd, "%s", exp->data.numb);
-                       break;
-               case PSI_T_CONST:
-                       dprintf(fd, "%s", exp->data.cnst->name);
-                       break;
-               case PSI_T_ENUM:
-                       dprintf(fd, "%s", exp->data.enm->name);
-                       break;
-               case PSI_T_NAME:
-                       psi_decl_var_dump(fd, exp->data.dvar);
-                       break;
-               default:
-                       assert(0);
-               }
+       struct psi_token *ntoken;
+       if (!list) {
+               list = psi_plist_init((psi_plist_dtor) psi_token_free);
+       }
+
+       switch (exp->op) {
+       case PSI_T_NUMBER:
+               list = psi_number_tokens(exp->data.n, list);
+               break;
+
+       case PSI_T_CAST:
+               ntoken = exp->data.c.typ->token;
+               ntoken = psi_token_init(PSI_T_LPAREN, "(", 1, ntoken->col-1, ntoken->line, ntoken->file);
+               list = psi_plist_add(list, &ntoken);
+               ntoken = psi_token_copy(exp->data.c.typ->token);
+               list = psi_plist_add(list, &ntoken);
+               ntoken = psi_token_init(PSI_T_RPAREN, ")", 1, ntoken->col+ntoken->size, ntoken->line, ntoken->file);
+               list = psi_plist_add(list, &ntoken);
+               break;
 
-               if (exp->operand) {
-                       dprintf(fd, " %c ", psi_num_exp_op_tok(exp->op));
+       case PSI_T_NOT:
+       case PSI_T_TILDE:
+       unary:
+               ntoken = psi_token_copy(exp->token);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_num_exp_tokens(exp->data.u, list);
+               break;
+
+       case PSI_T_LPAREN:
+               ntoken = psi_token_copy(exp->token);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_num_exp_tokens(exp->data.u, list);
+               psi_plist_top(list, &ntoken);
+               ntoken = psi_token_init(PSI_T_RPAREN, ")", 1, ntoken->col+ntoken->size, ntoken->line, ntoken->file);
+               list = psi_plist_add(list, &ntoken);
+               break;
+
+       case PSI_T_PLUS:
+       case PSI_T_MINUS:
+               if (!exp->data.b.rhs) {
+                       goto unary;
                }
+               /* no break */
+       case PSI_T_PIPE:
+       case PSI_T_CARET:
+       case PSI_T_AMPERSAND:
+       case PSI_T_LSHIFT:
+       case PSI_T_RSHIFT:
+       case PSI_T_ASTERISK:
+       case PSI_T_SLASH:
+
+       case PSI_T_OR:
+       case PSI_T_AND:
+
+       case PSI_T_CMP_EQ:
+       case PSI_T_CMP_NE:
+       case PSI_T_CMP_LE:
+       case PSI_T_CMP_GE:
+       case PSI_T_RCHEVR:
+       case PSI_T_LCHEVR:
+
+               list = psi_num_exp_tokens(exp->data.b.lhs, list);
+               ntoken = psi_token_copy(exp->token);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_num_exp_tokens(exp->data.b.rhs, list);
+               break;
+
+       case PSI_T_IIF:
+               list = psi_num_exp_tokens(exp->data.t.cond, list);
+               ntoken = psi_token_copy(exp->token);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_num_exp_tokens(exp->data.t.truthy, list);
+               psi_plist_top(list, &ntoken);
+               ntoken = psi_token_init(PSI_T_COLON, ":", 1, ntoken->col+ntoken->size, ntoken->line, ntoken->file);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_plist_add(list, &ntoken);
+               list = psi_num_exp_tokens(exp->data.t.falsy, list);
+               break;
 
-               exp = exp->operand;
+       default:
+               assert(0);
        }
+
+       return list;
 }
 
-static inline bool psi_num_exp_validate_enum(struct psi_data *data, struct psi_num_exp *exp,
-               struct psi_decl_enum *enm)
+void psi_num_exp_dump(int fd, struct psi_num_exp *exp)
 {
-       size_t i = 0;
-       struct psi_decl_enum_item *itm;
-
-       while (psi_plist_get(enm->items, i++, &itm)) {
-               if (!strcmp(itm->name, exp->data.dvar->name)) {
-                       psi_decl_var_free(&exp->data.dvar);
-                       exp->type = PSI_T_ENUM;
-                       exp->data.enm = itm;
-                       return psi_num_exp_validate(data, exp, NULL, NULL, NULL, NULL, enm);
+       switch (exp->op) {
+       case PSI_T_NUMBER:
+               psi_number_dump(fd, exp->data.n);
+               break;
+
+       case PSI_T_CAST:
+               dprintf(fd, "(");
+               psi_decl_type_dump(1, exp->data.c.typ, 0);
+               dprintf(fd, ")");
+               break;
+
+       case PSI_T_NOT:
+       case PSI_T_TILDE:
+       unary:
+               dprintf(fd, "%s", psi_num_exp_op_tok(exp->op));
+               psi_num_exp_dump(fd, exp->data.u);
+               break;
+
+       case PSI_T_LPAREN:
+               dprintf(fd, "(");
+               psi_num_exp_dump(fd, exp->data.u);
+               dprintf(fd, ")");
+               break;
+
+       case PSI_T_PLUS:
+       case PSI_T_MINUS:
+               if (!exp->data.b.rhs) {
+                       goto unary;
                }
+               /* no break */
+       case PSI_T_PIPE:
+       case PSI_T_CARET:
+       case PSI_T_AMPERSAND:
+       case PSI_T_LSHIFT:
+       case PSI_T_RSHIFT:
+       case PSI_T_ASTERISK:
+       case PSI_T_SLASH:
+
+       case PSI_T_OR:
+       case PSI_T_AND:
+
+       case PSI_T_CMP_EQ:
+       case PSI_T_CMP_NE:
+       case PSI_T_CMP_LE:
+       case PSI_T_CMP_GE:
+       case PSI_T_RCHEVR:
+       case PSI_T_LCHEVR:
+               psi_num_exp_dump(fd, exp->data.b.lhs);
+               dprintf(fd, " %s ", psi_num_exp_op_tok(exp->op));
+               psi_num_exp_dump(fd, exp->data.b.rhs);
+               break;
+
+       case PSI_T_IIF:
+               psi_num_exp_dump(fd, exp->data.t.cond);
+               dprintf(fd, " ? ");
+               psi_num_exp_dump(fd, exp->data.t.truthy);
+               dprintf(fd, " : ");
+               psi_num_exp_dump(fd, exp->data.t.falsy);
+               break;
+
+       default:
+               assert(0);
        }
 
-       return false;
 }
 
 bool psi_num_exp_validate(struct psi_data *data, struct psi_num_exp *exp,
-               struct psi_impl *impl, struct psi_decl *cb_decl, struct psi_let_exp *current_let,
-               struct psi_set_exp *current_set, struct psi_decl_enum *current_enum)
+               struct psi_validate_scope *scope)
 {
-       size_t i = 0;
-       impl_val tmp = {0};
-       struct psi_const *cnst;
-       struct psi_decl_enum *enm;
-
-       if (exp->operand) {
+       if (exp->op && exp->op != PSI_T_NUMBER) {
                switch (exp->op) {
+               case PSI_T_NOT:
+                       exp->calc = psi_calc_bool_not;
+                       break;
+               case PSI_T_TILDE:
+                       exp->calc = psi_calc_bin_not;
+                       break;
+
+               case PSI_T_OR:
+                       exp->calc = psi_calc_bool_or;
+                       break;
+               case PSI_T_AND:
+                       exp->calc = psi_calc_bool_and;
+                       break;
+               case PSI_T_CMP_EQ:
+                       exp->calc = psi_calc_cmp_eq;
+                       break;
+               case PSI_T_CMP_NE:
+                       exp->calc = psi_calc_cmp_ne;
+                       break;
+               case PSI_T_CMP_LE:
+                       exp->calc = psi_calc_cmp_le;
+                       break;
+               case PSI_T_CMP_GE:
+                       exp->calc = psi_calc_cmp_ge;
+                       break;
+               case PSI_T_LCHEVR:
+                       exp->calc = psi_calc_cmp_lt;
+                       break;
+               case PSI_T_RCHEVR:
+                       exp->calc = psi_calc_cmp_gt;
+                       break;
+
+               case PSI_T_CAST:
+               case PSI_T_LPAREN:
+               case PSI_T_IIF:
+                       break;
+
+               case PSI_T_PIPE:
+                       exp->calc = psi_calc_bin_or;
+                       break;
+               case PSI_T_CARET:
+                       exp->calc = psi_calc_bin_xor;
+                       break;
+               case PSI_T_AMPERSAND:
+                       exp->calc = psi_calc_bin_and;
+                       break;
                case PSI_T_LSHIFT:
                        exp->calc = psi_calc_bin_lshift;
                        break;
@@ -212,10 +502,16 @@ bool psi_num_exp_validate(struct psi_data *data, struct psi_num_exp *exp,
                        exp->calc = psi_calc_bin_rshift;
                        break;
                case PSI_T_PLUS:
-                       exp->calc = psi_calc_add;
+                       if (exp->data.b.rhs) {
+                               exp->calc = psi_calc_add;
+                       }
                        break;
                case PSI_T_MINUS:
-                       exp->calc = psi_calc_sub;
+                       if (exp->data.b.rhs) {
+                               exp->calc = psi_calc_sub;
+                       } else {
+                               exp->calc = psi_calc_minus;
+                       }
                        break;
                case PSI_T_ASTERISK:
                        exp->calc = psi_calc_mul;
@@ -223,271 +519,325 @@ bool psi_num_exp_validate(struct psi_data *data, struct psi_num_exp *exp,
                case PSI_T_SLASH:
                        exp->calc = psi_calc_div;
                        break;
-               case PSI_T_AMPERSAND:
-                       exp->calc = psi_calc_bin_and;
-                       break;
-               case PSI_T_CARET:
-                       exp->calc = psi_calc_bin_xor;
-                       break;
-               case PSI_T_PIPE:
-                       exp->calc = psi_calc_bin_or;
+               case PSI_T_MODULO:
+                       exp->calc = psi_calc_mod;
                        break;
                default:
                        data->error(data, exp->token, PSI_WARNING,
                                        "Unknown numeric operator (%d)", exp->op);
                        return false;
                }
-               if (!psi_num_exp_validate(data, exp->operand, impl, cb_decl, current_let,
-                               current_set, current_enum)) {
-                       return false;
-               }
        }
 
-       switch (exp->type) {
-       case PSI_T_CONST:
-       case PSI_T_INT64:
-       case PSI_T_DOUBLE:
-       case PSI_T_ENUM:
-               return true;
+       switch (exp->op) {
+       case PSI_T_NUMBER:
+               return psi_number_validate(data, exp->data.n, scope);
 
-       case PSI_T_NAME:
-               if (current_enum && psi_num_exp_validate_enum(data, exp, current_enum)) {
-                       return true;
-               }
-               while (psi_plist_get(data->enums, i++, &enm)) {
-                       if (psi_num_exp_validate_enum(data, exp, enm)) {
-                               return true;
-                       }
-               }
-               if (exp->data.dvar->arg) {
-                       return true;
-               }
-               if (psi_decl_var_validate(data, exp->data.dvar, impl ? impl->decl : NULL,
-                               current_let, current_set)) {
-                       return true;
-               }
-               if (cb_decl && psi_decl_var_validate(data, exp->data.dvar, cb_decl, NULL, NULL)) {
-                       return true;
-               }
-               data->error(data, exp->token, PSI_WARNING,
-                               "Unknown variable '%s' in numeric expression",
-                               exp->data.dvar->name);
-               return false;
-
-       case PSI_T_NSNAME:
-               while (psi_plist_get(data->consts, i++, &cnst)) {
-                       if (!strcmp(cnst->name, exp->data.numb)) {
-                               free(exp->data.numb);
-                               exp->type = PSI_T_CONST;
-                               exp->data.cnst = cnst;
-                               return true;
-                       }
-               }
-               data->error(data, exp->token, PSI_WARNING,
-                               "Unknown constant '%s' in numeric expression",
-                               exp->data.numb);
-               return false;
+       case PSI_T_CAST:
+               return psi_num_exp_validate(data, exp->data.c.num, scope)
+                               && psi_decl_type_validate(data, exp->data.c.typ, NULL, scope);
+               break;
 
-       case PSI_T_NUMBER:
-               switch (is_numeric_string(exp->data.numb, strlen(exp->data.numb), (zend_long *) &tmp, (double *) &tmp, 0)) {
-               case IS_LONG:
-                       free(exp->data.numb);
-                       exp->type = PSI_T_INT64;
-                       exp->data.ival.i64 = tmp.zend.lval;
-                       return true;
-
-               case IS_DOUBLE:
-                       free(exp->data.numb);
-                       exp->type = PSI_T_DOUBLE;
-                       exp->data.ival.dval = tmp.dval;
-                       return true;
+       case PSI_T_NOT:
+       case PSI_T_TILDE:
+       case PSI_T_LPAREN:
+       unary:
+               return psi_num_exp_validate(data, exp->data.u, scope);
+               break;
+
+       case PSI_T_PLUS:
+       case PSI_T_MINUS:
+               if (!exp->data.b.rhs) {
+                       goto unary;
                }
-               data->error(data, exp->token, PSI_WARNING, "Expected numeric entity (parser error?)");
-               return false;
+               /* no break */
+       case PSI_T_PIPE:
+       case PSI_T_CARET:
+       case PSI_T_AMPERSAND:
+       case PSI_T_LSHIFT:
+       case PSI_T_RSHIFT:
+       case PSI_T_ASTERISK:
+       case PSI_T_SLASH:
+       case PSI_T_MODULO:
 
-       default:
-               assert(0);
-       }
+       case PSI_T_OR:
+       case PSI_T_AND:
 
-       return false;
-}
+       case PSI_T_CMP_EQ:
+       case PSI_T_CMP_NE:
+       case PSI_T_CMP_LE:
+       case PSI_T_CMP_GE:
+       case PSI_T_RCHEVR:
+       case PSI_T_LCHEVR:
+               return psi_num_exp_validate(data, exp->data.b.lhs, scope)
+                               && psi_num_exp_validate(data, exp->data.b.rhs, scope);
 
-#include "Zend/zend_constants.h"
+       case PSI_T_IIF:
+               return psi_num_exp_validate(data, exp->data.t.cond, scope)
+                               && psi_num_exp_validate(data, exp->data.t.truthy, scope)
+                               && psi_num_exp_validate(data, exp->data.t.falsy, scope);
 
-static inline token_t psi_num_exp_eval_constant(struct psi_num_exp *exp,
-               impl_val *res, struct psi_call_frame *frame)
-{
-       switch (exp->data.cnst->type->type) {
-       case PSI_T_INT:
-               res->i64 = zend_get_constant_str(exp->data.cnst->name,
-                               strlen(exp->data.cnst->name))->value.lval;
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi64, res->i64);
-               return PSI_T_INT64;
-       case PSI_T_FLOAT:
-               res->dval = zend_get_constant_str(exp->data.cnst->name,
-                               strlen(exp->data.cnst->name))->value.dval;
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIdval, res->dval);
-               return PSI_T_DOUBLE;
        default:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "?(t=%d)", exp->data.cnst->type->type);
-               return 0;
+               assert(0);
        }
+
+       return false;
 }
 
-static inline void psi_num_exp_verify_result(token_t t, impl_val *res, struct psi_call_frame *frame)
+static inline void psi_impl_val_dump(token_t t, impl_val *res,
+               struct psi_call_frame *frame)
 {
        switch (t) {
        case PSI_T_INT8:
        case PSI_T_UINT8:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi8, res->i8);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIi8, res->i8);
                break;
        case PSI_T_INT16:
        case PSI_T_UINT16:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi16, res->i16);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIi16, res->i16);
                break;
        case PSI_T_INT32:
        case PSI_T_UINT32:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi32, res->i32);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIi32, res->i32);
                break;
        case PSI_T_INT64:
        case PSI_T_UINT64:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi64, res->i64);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIi64, res->i64);
                break;
        case PSI_T_FLOAT:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIfval, res->fval);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIfval, res->fval);
                break;
        case PSI_T_DOUBLE:
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIdval, res->dval);
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIdval, res->dval);
                break;
-       default:
+#if HAVE_LONG_DOUBLE
+       case PSI_T_LONG_DOUBLE:
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %" PRIldval, res->ldval);
+               break;
+#endif
+               default:
                assert(0);
        }
 }
 
-static inline token_t psi_num_exp_eval_decl_var(struct psi_num_exp *exp,
-               impl_val *res, struct psi_call_frame *frame)
+static inline void psi_num_exp_verify_result(token_t t, impl_val *res, struct psi_call_frame *frame)
 {
-       impl_val *ref;
-       struct psi_call_frame_symbol *sym;
-       struct psi_decl_type *real;
-       size_t size;
-
-       real = psi_decl_type_get_real(exp->data.dvar->arg->type);
-       size = psi_decl_arg_get_size(exp->data.dvar->arg);
-       sym = psi_call_frame_fetch_symbol(frame, exp->data.dvar);
-       ref = deref_impl_val(sym->ptr, exp->data.dvar);
-
-       memcpy(res, ref, size);
-
-       return real->type;
+       if (frame) PSI_DEBUG_PRINT(frame->context, "%s", " = ");
+       psi_impl_val_dump(t, res, frame);
+       if (frame) PSI_DEBUG_PRINT(frame->context, "%s", "\n");
 }
 
-static inline token_t psi_num_exp_eval(struct psi_num_exp *exp, impl_val *res,
-               struct psi_call_frame *frame)
+static void psi_num_exp_reduce(struct psi_num_exp *exp, struct psi_plist **output_ptr,
+               struct psi_plist **input_ptr, struct psi_call_frame *frame, HashTable *defs)
 {
-       switch (exp->type) {
-       case PSI_T_INT64:
-               *res = exp->data.ival;
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi64, res->i64);
-               return PSI_T_INT64;
-
-       case PSI_T_DOUBLE:
-               *res = exp->data.ival;
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIdval, res->dval);
-               return exp->type;
-
-       case PSI_T_ENUM:
-               res->i64 = exp->data.enm->val;
-               if (frame) PSI_DEBUG_PRINT(frame->context, "%" PRIi64, res->i64);
-               return PSI_T_INT64;
-
-       case PSI_T_CONST:
-               return psi_num_exp_eval_constant(exp, res, frame);
+       struct psi_plist *output = *output_ptr, *input = *input_ptr;
+       struct element {
+               token_t type;
+               union {
+                       impl_val value;
+                       psi_calc calc;
+                       struct psi_decl_type *cast;
+               } data;
+       } entry;
+
+       switch (exp->op) {
+       case PSI_T_NUMBER:
+               entry.type = psi_number_eval(exp->data.n, &entry.data.value, frame, defs, exp);
+               output = psi_plist_add(output, &entry);
                break;
 
-       case PSI_T_NAME:
-               return psi_num_exp_eval_decl_var(exp, res, frame);
+       case PSI_T_LPAREN:
+               entry.type = exp->op;
+               input = psi_plist_add(input, &entry);
+               psi_num_exp_reduce(exp->data.u, &output, &input, frame, defs);
+               while (psi_plist_pop(input, &entry)) {
+                       if (entry.type == PSI_T_LPAREN) {
+                               break;
+                       }
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       output = psi_plist_add(output, &entry);
+               }
                break;
 
-       default:
-               assert(0);
-       }
-       return 0;
-}
+       case PSI_T_CAST:
+               while (psi_plist_top(input, &entry)) {
+                       /* bail out if exp->op >= entry.type */
+                       if (psi_calc_oper(exp->op, entry.type) != 1) {
+                               break;
+                       }
+                       psi_plist_pop(input, NULL);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       output = psi_plist_add(output, &entry);
+               }
+               entry.type = exp->op;
+               entry.data.cast = exp->data.c.typ;
+               input = psi_plist_add(input, &entry);
+               psi_num_exp_reduce(exp->data.c.num, &output, &input, frame, defs);
+               break;
 
-#include "context.h"
+       case PSI_T_NOT:
+       case PSI_T_TILDE:
+               while (psi_plist_top(input, &entry)) {
+                       /* bail out if exp->op >= entry.type */
+                       if (psi_calc_oper(exp->op, entry.type) != 1) {
+                               break;
+                       }
+                       psi_plist_pop(input, NULL);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       output = psi_plist_add(output, &entry);
+               }
+               entry.type = exp->op;
+               entry.data.calc = exp->calc;
+               input = psi_plist_add(input, &entry);
+               psi_num_exp_reduce(exp->data.u, &output, &input, frame, defs);
+               break;
 
-static inline int psi_num_exp_op_cmp(token_t op1, token_t op2)
-{
-       assert(op1 >= PSI_T_LSHIFT && op2 <= PSI_T_PIPE);
-       assert(op2 >= PSI_T_LSHIFT && op2 <= PSI_T_PIPE);
+       case PSI_T_IIF:
+               {
+                       impl_val cond_val = {0};
+                       token_t cond_typ = psi_num_exp_exec(exp->data.t.cond, &cond_val, frame, defs);
 
-       switch (op1) {
-       case PSI_T_LSHIFT:
-       case PSI_T_RSHIFT:
-               return op2 > PSI_T_RSHIFT;
+                       psi_calc_bool_not(cond_typ, &cond_val, 0, NULL, &cond_val);
+                       if (cond_val.u8) {
+                               psi_num_exp_reduce(exp->data.t.falsy, &output, &input, frame, defs);
+                       } else {
+                               psi_num_exp_reduce(exp->data.t.truthy, &output, &input, frame, defs);
+                       }
+               }
+               break;
 
-       case PSI_T_PLUS:
        case PSI_T_MINUS:
-               return op2 > PSI_T_MINUS ? 1 : (op2 < PSI_T_PLUS ? -1 : 0);
-
-       case PSI_T_ASTERISK:
-       case PSI_T_SLASH:
-               return op2 > PSI_T_SLASH ? 1 : (op2 < PSI_T_ASTERISK ? -1 : 0);
+       case PSI_T_PLUS:
+               /* unary */
+               if (!exp->data.b.rhs) {
+                       entry.type = psi_num_exp_exec(exp->data.b.lhs, &entry.data.value, frame, defs);
 
-       case PSI_T_AMPERSAND:
-       case PSI_T_CARET:
-       case PSI_T_PIPE:
-               return -1 * (op2 < PSI_T_AMPERSAND);
+                       if (exp->calc) {
+                               entry.type = exp->calc(entry.type, &entry.data.value, 0, NULL, &entry.data.value);
+                       }
+                       output = psi_plist_add(output, &entry);
+                       break;
+               }
+               /* no break */
+       default:
+               psi_num_exp_reduce(exp->data.b.lhs, &output, &input, frame, defs);
+               while (psi_plist_top(input, &entry)) {
+                       /* bail out if exp->op > entry.type */
+                       if (psi_calc_oper(exp->op, entry.type) == -1) {
+                               break;
+                       }
+                       psi_plist_pop(input, NULL);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       output = psi_plist_add(output, &entry);
+               }
+               entry.type = exp->op;
+               entry.data.calc = exp->calc;
+               input = psi_plist_add(input, &entry);
+               psi_num_exp_reduce(exp->data.b.rhs, &output, &input, frame, defs);
+               break;
        }
 
-       return 0;
+       *output_ptr = output;
+       *input_ptr = input;
 }
 
 token_t psi_num_exp_exec(struct psi_num_exp *exp, impl_val *res,
-               struct psi_call_frame *frame)
+               struct psi_call_frame *frame, HashTable *defs)
 {
-       impl_val num = {0};
-       token_t num_type;
+       struct psi_plist *output, *input;
+       struct element {
+               token_t type;
+               union {
+                       impl_val value;
+                       psi_calc calc;
+                       struct psi_decl_type *cast;
+               } data;
+       } entry, lhs, rhs;
+
+       output = psi_plist_init_ex(sizeof(entry), NULL);
+       input = psi_plist_init_ex(sizeof(entry), NULL);
+
+       psi_num_exp_reduce(exp, &output, &input, frame, defs);
+
+       while (psi_plist_pop(input, &entry)) {
+               if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+               output = psi_plist_add(output, &entry);
+       }
+       if (frame) PSI_DEBUG_PRINT(frame->context, "%s", "\n");
 
-       num_type = psi_num_exp_eval(exp, &num, frame);
+       while (psi_plist_shift(output, &entry)) {
+               switch (entry.type) {
+               default:
+                       input = psi_plist_add(input, &entry);
+                       break;
 
-       if (exp->operand) {
-               impl_val rhs;
-               token_t rhs_type, res_type;
+               case PSI_T_CAST:
+                       psi_plist_pop(input, &rhs);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       psi_impl_val_dump(rhs.type, &rhs.data.value, frame);
 
-               /* only if there's a following op, and we have a higher precedence */
-               if (exp->operand->operand &&
-                               psi_num_exp_op_cmp(exp->op, exp->operand->op) < 0) {
-                       impl_val tmp, lhs;
-                       token_t tmp_type, lhs_type;
+                       entry.type = psi_decl_type_get_real(entry.data.cast)->type;
+                       psi_calc_cast(rhs.type, &rhs.data.value, entry.type, &entry.data.value);
+                       input = psi_plist_add(input, &entry);
+                       psi_num_exp_verify_result(entry.type, &entry.data.value, frame);
+                       break;
 
-                       if (frame) PSI_DEBUG_PRINT(frame->context, " %lc ", psi_num_exp_op_tok(exp->op));
+               case PSI_T_NOT:
+               case PSI_T_TILDE:
+                       psi_plist_pop(input, &rhs);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       psi_impl_val_dump(rhs.type, &rhs.data.value, frame);
 
-                       tmp_type = psi_num_exp_eval(exp->operand, &tmp, frame);
-                       lhs_type = exp->calc(num_type, &num, tmp_type, &tmp, &lhs);
+                       entry.type = entry.data.calc(rhs.type, &rhs.data.value, 0, NULL, &entry.data.value);
+                       input = psi_plist_add(input, &entry);
+                       psi_num_exp_verify_result(entry.type, &entry.data.value, frame);
+                       break;
 
-                       if (frame) PSI_DEBUG_PRINT(frame->context, " %c ", '=');
-                       psi_num_exp_verify_result(lhs_type, &lhs, frame);
-                       if (frame) PSI_DEBUG_PRINT(frame->context, " %c", '\n');
+               case PSI_T_OR:
+               case PSI_T_AND:
 
-                       rhs_type = psi_num_exp_exec(exp->operand->operand, &rhs, frame);
-                       res_type = exp->operand->calc(lhs_type, &lhs, rhs_type, &rhs, res);
-               } else {
-                       if (frame) PSI_DEBUG_PRINT(frame->context, " %lc ", psi_num_exp_op_tok(exp->op));
+               case PSI_T_CMP_EQ:
+               case PSI_T_CMP_NE:
+               case PSI_T_CMP_LE:
+               case PSI_T_CMP_GE:
+               case PSI_T_RCHEVR:
+               case PSI_T_LCHEVR:
 
-                       rhs_type = psi_num_exp_exec(exp->operand, &rhs, frame);
-                       res_type = exp->calc(num_type, &num, rhs_type, &rhs, res);
+               case PSI_T_PIPE:
+               case PSI_T_CARET:
+               case PSI_T_AMPERSAND:
+               case PSI_T_LSHIFT:
+               case PSI_T_RSHIFT:
+               case PSI_T_MINUS:
+               case PSI_T_PLUS:
+               case PSI_T_ASTERISK:
+               case PSI_T_SLASH:
+               case PSI_T_MODULO:
+                       psi_plist_pop(input, &rhs);
+                       psi_plist_pop(input, &lhs);
+
+                       psi_impl_val_dump(lhs.type, &lhs.data.value, frame);
+                       if (frame) PSI_DEBUG_PRINT(frame->context, " %s", psi_num_exp_op_tok(entry.type));
+                       psi_impl_val_dump(rhs.type, &rhs.data.value, frame);
+
+                       entry.type = entry.data.calc(
+                                       lhs.type, &lhs.data.value,
+                                       rhs.type, &rhs.data.value,
+                                       &entry.data.value);
+                       input = psi_plist_add(input, &entry);
+                       psi_num_exp_verify_result(entry.type, &entry.data.value, frame);
+                       break;
                }
 
-               if (frame) PSI_DEBUG_PRINT(frame->context, " %c ", '=');
-               psi_num_exp_verify_result(res_type, res, frame);
-               if (frame) PSI_DEBUG_PRINT(frame->context, " %c", '\n');
-
-               return res_type;
+               if (!psi_plist_count(output)) {
+                       break;
+               }
        }
 
-       *res = num;
+       psi_plist_free(output);
+       psi_plist_free(input);
 
-       return num_type;
+       *res = entry.data.value;
+       return entry.type;
 }
+