+}
+
+static inline void psi_context_extvars_init(struct psi_context *C)
+{
+ if (C->vars) {
+ size_t v = 0;
+ struct psi_decl_extvar *evar;
+
+ while (psi_plist_get(C->vars, v++, &evar)) {
+ C->ops->extvar_init(C, evar);
+ }
+ }
+}
+
+static inline void psi_context_callback_init(struct psi_context *C,
+ struct psi_let_exp *let_exp, struct psi_impl *impl)
+{
+ struct psi_let_func *fn = let_exp->data.func;
+
+ switch (let_exp->kind) {
+ case PSI_LET_CALLBACK:
+ C->ops->cb_init(C, let_exp, impl);
+ /* override fn */
+ fn = let_exp->data.callback->func;
+ /* no break */
+ case PSI_LET_FUNC:
+ if (fn->inner) {
+ size_t i = 0;
+ struct psi_let_exp *inner_let;
+
+ while (psi_plist_get(fn->inner, i++, &inner_let)) {
+ psi_context_callback_init(C, inner_let, impl);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static inline void psi_context_callback_dtor(struct psi_context *C,
+ struct psi_let_exp *let_exp, struct psi_impl *impl)
+{
+ struct psi_let_func *fn = let_exp->data.func;
+
+ switch (let_exp->kind) {
+ case PSI_LET_CALLBACK:
+ C->ops->cb_dtor(C, let_exp, impl);
+ /* override func */
+ fn = let_exp->data.callback->func;
+ /* no break */
+ case PSI_LET_FUNC:
+ if (fn->inner) {
+ size_t i = 0;
+ struct psi_let_exp *cb;
+
+ while (psi_plist_get(fn->inner, i++, &cb)) {
+ psi_context_callback_dtor(C, cb, impl);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+static inline void psi_context_impls_init(struct psi_context *C)
+{
+ size_t nf = 0;
+ zend_function_entry *zfe = NULL;
+
+ if (C->impls) {
+ size_t i = 0;
+ struct psi_impl *impl;
+
+ zfe = pecalloc(psi_plist_count(C->impls) + 1, sizeof(*zfe), 1);
+
+ while (psi_plist_get(C->impls, i++, &impl)) {
+ zend_function_entry *zf = &zfe[nf];
+ struct psi_let_stmt *let;
+ size_t l = 0;
+
+ if (!impl->decl) {
+ continue;
+ }
+ if (!C->ops->decl_init(C, impl->decl)) {
+ continue;
+ }
+ if (!C->ops->impl_init(C, impl, &zf->handler)) {
+ continue;
+ }
+ while (psi_plist_get(impl->stmts.let, l++, &let)) {
+ psi_context_callback_init(C, let->exp, impl);
+ }
+
+ zf->fname = impl->func->name->val + (impl->func->name->val[0] == '\\');
+ zf->num_args = psi_plist_count(impl->func->args);
+ zf->arg_info = psi_internal_arginfo(impl);
+ ++nf;
+ }
+ }
+
+ C->closures = zfe;
+}
+
+static inline void psi_context_decls_init(struct psi_context *C)
+{
+ if (C->decls) {
+ size_t d = 0;
+ struct psi_decl *decl;
+
+ while (psi_plist_get(C->decls, d++, &decl)) {
+ if (!decl->info) {
+ C->ops->decl_init(C, decl);
+ }
+ }
+ }
+}
+
+struct psi_struct_type_data {
+ struct psi_plist *els;
+ size_t offset;
+ size_t max_align;
+};
+
+static inline void psi_struct_type_pad(struct psi_context *C,
+ struct psi_struct_type_data *data, size_t padding)
+{
+ void *ele = C->ops->typeof_decl(C, PSI_T_INT8);
+
+ while (padding--) {
+ void *pad = C->ops->copyof_type(C, ele);
+ data->els = psi_plist_add(data->els, &pad);
+ }
+}
+
+static inline void psi_struct_type_element(struct psi_context *C,
+ struct psi_struct_type_data *data, struct psi_decl_arg *darg)
+{
+ void *type, *copy;
+ size_t i;
+ struct psi_layout type_layout;
+
+ if (darg->layout->pos) {
+ assert(data->offset <= darg->layout->pos);
+ psi_struct_type_pad(C, data, darg->layout->pos - data->offset);
+ data->offset = darg->layout->pos;
+ }
+
+ type = psi_context_decl_arg_full_type(C, darg);
+ C->ops->layoutof_type(C, type, &type_layout);
+
+ if (type_layout.pos > data->max_align) {
+ data->max_align = type_layout.pos;
+ }
+
+ assert(type_layout.len <= darg->layout->len);
+
+ for (i = 0; i < (darg->var->array_size ?: 1); ++i) {
+ copy = C->ops->copyof_type(C, type);
+ data->els = psi_plist_add(data->els, ©);
+ }
+ assert(darg->layout->len == type_layout.len * (darg->var->array_size ?: 1));
+ data->offset += darg->layout->len;
+}
+
+static inline void psi_context_decl_struct_type_elements(struct psi_context *C,
+ struct psi_decl_struct *strct, struct psi_plist **els)
+{
+ size_t i = 0;
+ struct psi_decl_arg *darg, *prev = NULL;
+ struct psi_struct_type_data data = {0};
+
+ data.els = *els;
+ while (psi_plist_get(strct->args, i++, &darg)) {
+ if (prev && prev->layout->pos == darg->layout->pos) {
+ /* skip bit fields */
+ continue;
+ }
+ psi_struct_type_element(C, &data, darg);
+ }
+
+ data.offset = (data.offset + data.max_align - 1) & ~(data.max_align - 1);
+ assert(data.offset <= strct->size);
+ psi_struct_type_pad(C, &data, strct->size - data.offset);
+
+ *els = data.els;
+}
+
+static inline void *psi_context_decl_arg_type(struct psi_context *C,
+ struct psi_decl_arg *darg)
+{
+ struct psi_decl_type *real = psi_decl_type_get_real(darg->type);
+
+ if (real != darg->type && darg->type->real.def->var->pointer_level) {
+ return C->ops->typeof_decl(C, PSI_T_POINTER);
+ }
+
+ if (real->type == PSI_T_UNION) {
+ struct psi_decl_arg *arg;
+ psi_plist_get(real->real.unn->args, 0, &arg);
+ return psi_context_decl_arg_full_type(C, arg);
+ }
+
+ if (real->type == PSI_T_STRUCT) {
+ C->ops->composite_init(C, darg);
+ return darg->engine.type;
+ }