diff options
Diffstat (limited to 'eval.c')
| -rw-r--r-- | eval.c | 26 |
1 files changed, 13 insertions, 13 deletions
@@ -751,7 +751,7 @@ static bool eval_address_of_ident(Identifier i, Type *type, Location where, void return true; } -static void *eval_ptr_to_struct_field(Evaluator *ev, Expression *dot_expr) { +static bool eval_ptr_to_struct_field(Evaluator *ev, Expression *dot_expr, void **p) { Type *struct_type = &dot_expr->binary.lhs->type; bool is_ptr = struct_type->kind == TYPE_PTR; if (is_ptr) { @@ -768,22 +768,22 @@ static void *eval_ptr_to_struct_field(Evaluator *ev, Expression *dot_expr) { struc_data = struc.ptr; if (struc_data == NULL) { err_print(dot_expr->where, "Attempt to dereference NULL pointer."); - return NULL; + return false; } } else { struc_data = struc.struc; } - return (char *)struc_data + dot_expr->binary.dot.field->offset; + *p = (char *)struc_data + dot_expr->binary.dot.field->offset; } else { void *ptr; assert(type_is_builtin(struct_type, BUILTIN_NMS)); Identifier translated = dot_expr->binary.dot.translated_ident; if (!eval_address_of_ident(translated, &dot_expr->type, dot_expr->where, &ptr)) { - return NULL; + return false; } - return ptr; + *p = ptr; } - + return false; } static bool eval_address_of(Evaluator *ev, Expression *e, void **ptr) { @@ -817,9 +817,7 @@ static bool eval_address_of(Evaluator *ev, Expression *e, void **ptr) { Value struc; if (!eval_expr(ev, e->binary.lhs, &struc)) return false; - - *ptr = eval_ptr_to_struct_field(ev, e); - if (!*ptr) + if (!eval_ptr_to_struct_field(ev, e, ptr)) return false; } break; default: assert(0); return false; @@ -879,8 +877,9 @@ static bool eval_set(Evaluator *ev, Expression *set, Value *to) { eval_deref_set(ptr, to, type); } break; case BINARY_DOT: { - void *ptr = eval_ptr_to_struct_field(ev, set); - if (!ptr) return false; + void *ptr; + if (!eval_ptr_to_struct_field(ev, set, &ptr)) + return false; eval_deref_set(ptr, to, &set->binary.dot.field->type); } break; default: assert(0); break; @@ -1217,8 +1216,9 @@ static bool eval_expr(Evaluator *ev, Expression *e, Value *v) { if (!eval_expr(ev, rhs_expr, &rhs)) return false; switch (e->binary.op) { case BINARY_DOT: { - void *ptr = eval_ptr_to_struct_field(ev, e); - if (!ptr) return false; + void *ptr; + if (!eval_ptr_to_struct_field(ev, e, &ptr)) + return false; eval_deref(v, ptr, &e->type); } break; case BINARY_ADD: |