+static bool psi_jit_extvar_init(struct psi_context *C,
+ struct psi_decl_extvar *evar)
+{
+ struct psi_jit_context *ctx = C->context;
+ struct psi_jit_extvar_info *info = pecalloc(1, sizeof(*info), 1);
+
+ evar->info = info;
+
+ psi_jit_decl_init(C, evar->getter);
+ psi_jit_decl_init(C, evar->setter);
+
+ jit_context_build_start(ctx->jit);
+
+ info->get.signature = jit_type_create_signature(jit_abi_cdecl,
+ psi_context_decl_arg_call_type(C, evar->getter->func), NULL, 0, 1);
+ if (!info->get.signature) {
+ goto failure;
+ }
+ info->get.closure = jit_closure_create(ctx->jit, info->get.signature,
+ psi_jit_extvar_get, evar);
+ if (!info->get.closure) {
+ goto failure;
+ }
+
+ info->set.params[0] = psi_context_decl_arg_call_type(C, evar->arg);
+ info->set.signature = jit_type_create_signature(jit_abi_cdecl,
+ psi_context_decl_arg_call_type(C, evar->setter->func),
+ info->set.params, 1, 1);
+ if (!info->set.signature) {
+ goto failure;
+ }
+ info->set.closure = jit_closure_create(ctx->jit, info->set.signature,
+ psi_jit_extvar_set, evar);
+ if (!info->set.closure) {
+ goto failure;
+ }
+
+ evar->getter->sym = info->get.closure;
+ evar->setter->sym = info->set.closure;
+
+ jit_context_build_end(ctx->jit);
+ return true;
+failure: ;
+ jit_context_build_end(ctx->jit);
+ return false;
+}
+
+static void psi_jit_extvar_dtor(struct psi_context *C,
+ struct psi_decl_extvar *evar) {
+ if (evar->info) {
+ pefree(evar->info, 1);
+ evar->info = NULL;
+ }
+}
+
+static bool psi_jit_decl_init(struct psi_context *C, struct psi_decl *decl)
+{
+ if (!decl->info) {
+ struct psi_jit_context *ctx = C->context;
+ size_t i, c = psi_plist_count(decl->args);
+ struct psi_decl_arg *arg;
+ struct psi_jit_decl_info *info = pecalloc(1,
+ sizeof(*info) + 2 * c * sizeof(void *), 1);
+
+ decl->info = info;
+
+ jit_context_build_start(ctx->jit);
+
+ for (i = 0; psi_plist_get(decl->args, i, &arg); ++i) {
+ info->params[i] = psi_context_decl_arg_call_type(C, arg);
+ }
+ info->params[c] = NULL;
+
+ info->signature = jit_type_create_signature(
+ psi_jit_abi(decl->abi->convention),
+ psi_context_decl_arg_full_type(C, decl->func),
+ (jit_type_t *) info->params, c, 1);
+
+ jit_context_build_end(ctx->jit);
+
+ if (!info->signature) {
+ pefree(info, 1);
+ decl->info = NULL;
+ return false;