command: implement callable bytecode functions

bshell.core/cmdlets/get-command.c

@@ -40,13 +40,13 @@ static enum bshell_status process_record(
 		return BSHELL_SUCCESS;
 	}
 
-	fx_iterator *aliases = fx_iterator_begin(rt->rt_aliases);
+	const fx_iterator *aliases = fx_iterator_begin(rt->rt_aliases);
 	fx_foreach(item_v, aliases)
 	{
 		fx_hashtable_item *item;
-		fx_value_get_object(&item_v, &item);
-		fx_value alias_v = fx_hashtable_item_get_value(item);
-		bshell_pipeline_write_value(pipeline, alias_v, false);
+		fx_value_get_object(item_v, &item);
+		const fx_value *alias_v = fx_hashtable_item_get_value(item);
+		bshell_pipeline_write_value(pipeline, *alias_v, false);
 	}
 	fx_iterator_unref(aliases);
 
@@ -55,13 +55,14 @@ static enum bshell_status process_record(
 	while (scope) {
 		fx_hashtable *function_map
 			= bshell_runtime_scope_get_functions(scope);
-		fx_iterator *functions = fx_iterator_begin(function_map);
+		const fx_iterator *functions = fx_iterator_begin(function_map);
 		fx_foreach(item_v, functions)
 		{
 			fx_hashtable_item *item;
-			fx_value_get_object(&item_v, &item);
-			fx_value func_v = fx_hashtable_item_get_value(item);
-			bshell_pipeline_write_value(pipeline, func_v, false);
+			fx_value_get_object(item_v, &item);
+			const fx_value *func_v
+				= fx_hashtable_item_get_value(item);
+			bshell_pipeline_write_value(pipeline, *func_v, false);
 		}
 		fx_iterator_unref(functions);
 
@@ -72,12 +73,12 @@ static enum bshell_status process_record(
 	fx_foreach(asm_v, assemblies)
 	{
 		fx_assembly *assembly = NULL;
-		fx_value_get_object(&asm_v, &assembly);
+		fx_value_get_object(asm_v, &assembly);
 		fx_iterator *types = fx_assembly_get_types(assembly);
 		fx_foreach(v, types)
 		{
 			fx_type *ty = NULL;
-			fx_value_get_object(&v, &ty);
+			fx_value_get_object(v, &ty);
 			fx_type_flags ty_flags = fx_type_get_flags(ty);
 			bool is_abstract = (ty_flags & FX_TYPE_F_ABSTRACT) != 0;
 			if (is_abstract) {

bshell.core/cmdlets/get-verb.c

@@ -17,7 +17,7 @@ FX_TYPE_CLASS_DECLARATION_END(bshell_get_verb)
 
 struct bshell_get_verb_p {
 	fx_hashtable *c_verbs;
-	fx_iterator *c_it;
+	const fx_iterator *c_it;
 };
 
 static enum bshell_status begin_processing(bshell_cmdlet *cmdlet)
@@ -38,18 +38,18 @@ static enum bshell_status process_record(
 		= fx_object_get_private(cmdlet, BSHELL_TYPE_GET_VERB);
 
 	do {
-		fx_value v = fx_iterator_get_value(p->c_it);
-		if (!v.v_type) {
+		const fx_value *v = fx_iterator_get_value(p->c_it);
+		if (!v) {
 			return BSHELL_SUCCESS;
 		}
 
 		fx_hashtable_item *item = NULL;
-		fx_value_get_object(&v, &item);
+		fx_value_get_object(v, &item);
 
 		v = fx_hashtable_item_get_value(item);
 
 		bshell_verb *verb = NULL;
-		fx_value_get_object(&v, &verb);
+		fx_value_get_object(v, &verb);
 		fx_iterator_move_next(p->c_it);
 
 		if (bshell_verb_is_reserved(verb)) {
@@ -59,7 +59,7 @@ static enum bshell_status process_record(
 		bshell_verb_ref(verb);
 		bshell_pipeline_write_value(
 			pipeline,
-			fx_value_copy_return(fx_hashtable_item_get_value(item)),
+			fx_value_ref_copy_return(v),
 			false);
 		break;
 	} while (1);

bshell.runtime/ast/ast.c

@@ -154,10 +154,8 @@ struct bshell_ast_node *bshell_ast_iterator_dequeue(
 		return NULL;
 	}
 
-	struct bshell_ast_node *node = fx_unbox(
-		struct bshell_ast_node,
-		cur,
-		n_it.e_entry);
+	struct bshell_ast_node *node
+		= fx_unbox(struct bshell_ast_node, cur, n_it.e_entry);
 	const struct bshell_ast_node_definition *def
 		= bshell_ast_node_definitions[node->n_type];
 
@@ -178,10 +176,8 @@ void bshell_ast_iterator_enqueue(
 
 	fx_queue_entry *cur = fx_queue_first(&it->it_queue);
 	if (cur) {
-		struct bshell_ast_node *cur_node = fx_unbox(
-			struct bshell_ast_node,
-			cur,
-			n_it.e_entry);
+		struct bshell_ast_node *cur_node
+			= fx_unbox(struct bshell_ast_node, cur, n_it.e_entry);
 		new_depth = cur_node->n_it.e_depth + 1;
 	}
 
@@ -222,11 +218,8 @@ enum bshell_status bshell_ast_node_iterate(
 			return BSHELL_ERR_INTERNAL_FAILURE;
 		}
 
-		struct bshell_ast_iterate_result result = callback(
-			node,
-			BSHELL_AST_ITERATION_PRE,
-			it,
-			arg);
+		struct bshell_ast_iterate_result result
+			= callback(node, BSHELL_AST_ITERATION_PRE, it, arg);
 		if (result.r_status != BSHELL_SUCCESS
 		    || result.r_flags & BSHELL_AST_ITERATE_STOP) {
 			return result.r_status;
@@ -258,11 +251,8 @@ enum bshell_status bshell_ast_node_iterate(
 			return BSHELL_ERR_INTERNAL_FAILURE;
 		}
 
-		struct bshell_ast_iterate_result result = callback(
-			node,
-			BSHELL_AST_ITERATION_POST,
-			it,
-			arg);
+		struct bshell_ast_iterate_result result
+			= callback(node, BSHELL_AST_ITERATION_POST, it, arg);
 		if (result.r_status != BSHELL_SUCCESS
 		    || result.r_flags & BSHELL_AST_ITERATE_STOP) {
 			return result.r_status;

bshell.runtime/ast/double.c

@@ -4,13 +4,22 @@
 
 static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 {
-	struct bshell_double_ast_node *i = (struct bshell_double_ast_node *)
-		node;
+	struct bshell_double_ast_node *i
+		= (struct bshell_double_ast_node *)node;
 	fx_value_to_string(&i->n_value->tok_number, (fx_stream *)out, NULL);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_double_ast_node *d
+		= (struct bshell_double_ast_node *)node;
+	bshell_lex_token_destroy(d->n_value);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition double_bshell_ast_node = {
 	.def_id = BSHELL_AST_DOUBLE,
 	.def_node_size = sizeof(struct bshell_double_ast_node),
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/func.c

@@ -9,10 +9,8 @@ static enum bshell_status collect_children(
 
 	fx_queue_entry *cur = fx_queue_first(&func->n_params);
 	while (cur) {
-		struct bshell_ast_node *child = fx_unbox(
-			struct bshell_ast_node,
-			cur,
-			n_entry);
+		struct bshell_ast_node *child
+			= fx_unbox(struct bshell_ast_node, cur, n_entry);
 		bshell_ast_iterator_enqueue(it, child);
 		cur = fx_queue_next(cur);
 	}
@@ -26,14 +24,22 @@ static enum bshell_status collect_children(
 
 static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 {
-	const struct bshell_func_ast_node *func = (const struct
-	                                           bshell_func_ast_node *)node;
+	const struct bshell_func_ast_node *func
+		= (const struct bshell_func_ast_node *)node;
 	fx_bstr_write_fmt(out, NULL, "%s", func->n_name->tok_str);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_func_ast_node *d = (struct bshell_func_ast_node *)node;
+	bshell_lex_token_destroy(d->n_name);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition func_bshell_ast_node = {
 	.def_id = BSHELL_AST_FUNC,
 	.def_node_size = sizeof(struct bshell_func_ast_node),
 	.def_collect_children = collect_children,
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/int.c

@@ -8,8 +8,16 @@ static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 	fx_value_to_string(&i->n_value->tok_number, (fx_stream *)out, NULL);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_int_ast_node *i = (struct bshell_int_ast_node *)node;
+	bshell_lex_token_destroy(i->n_value);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition int_bshell_ast_node = {
 	.def_id = BSHELL_AST_INT,
 	.def_node_size = sizeof(struct bshell_int_ast_node),
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/redirection.c

@@ -1,4 +1,5 @@
 #include <bshell/ast.h>
+#include <bshell/parse/lex.h>
 
 static enum bshell_status collect_children(
 	struct bshell_ast_node *node,
@@ -41,9 +42,20 @@ static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 	}
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_redirection_ast_node *v
+		= (struct bshell_redirection_ast_node *)node;
+	if (v->n_out_tok) {
+		bshell_lex_token_destroy(v->n_out_tok);
+	}
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition redirection_bshell_ast_node = {
 	.def_id = BSHELL_AST_REDIRECTION,
 	.def_node_size = sizeof(struct bshell_redirection_ast_node),
 	.def_collect_children = collect_children,
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/string.c

@@ -3,14 +3,22 @@
 
 static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 {
-	const struct bshell_string_ast_node *string = (const struct
-	                                               bshell_string_ast_node *)
-		node;
+	const struct bshell_string_ast_node *string
+		= (const struct bshell_string_ast_node *)node;
 	fx_bstr_write_fmt(out, NULL, "%s", string->n_value->tok_str);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_string_ast_node *string
+		= (struct bshell_string_ast_node *)node;
+	bshell_lex_token_destroy(string->n_value);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition string_bshell_ast_node = {
 	.def_id = BSHELL_AST_STRING,
 	.def_node_size = sizeof(struct bshell_string_ast_node),
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/var.c

@@ -3,13 +3,21 @@
 
 static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 {
-	const struct bshell_var_ast_node *var = (const struct
-	                                         bshell_var_ast_node *)node;
+	const struct bshell_var_ast_node *var
+		= (const struct bshell_var_ast_node *)node;
 	fx_bstr_write_fmt(out, NULL, "%s", var->n_ident->tok_str);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_var_ast_node *v = (struct bshell_var_ast_node *)node;
+	bshell_lex_token_destroy(v->n_ident);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition var_bshell_ast_node = {
 	.def_id = BSHELL_AST_VAR,
 	.def_node_size = sizeof(struct bshell_var_ast_node),
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/ast/word.c

@@ -3,13 +3,21 @@
 
 static void to_string(const struct bshell_ast_node *node, fx_bstr *out)
 {
-	const struct bshell_word_ast_node *word = (const struct
-	                                           bshell_word_ast_node *)node;
+	const struct bshell_word_ast_node *word
+		= (const struct bshell_word_ast_node *)node;
 	fx_bstr_write_fmt(out, NULL, "%s", word->n_value->tok_str);
 }
 
+static enum bshell_status cleanup(struct bshell_ast_node *node)
+{
+	struct bshell_word_ast_node *w = (struct bshell_word_ast_node *)node;
+	bshell_lex_token_destroy(w->n_value);
+	return BSHELL_SUCCESS;
+}
+
 struct bshell_ast_node_definition word_bshell_ast_node = {
 	.def_id = BSHELL_AST_WORD,
 	.def_node_size = sizeof(struct bshell_word_ast_node),
 	.def_to_string = to_string,
+	.def_cleanup = cleanup,
 };

bshell.runtime/command/command.c

@@ -17,6 +17,11 @@ static void init(fx_object *obj, void *priv)
 {
 }
 
+static void fini(fx_object *obj, void *priv)
+{
+	struct bshell_command_p *cmd = priv;
+}
+
 static void command_set_args(
 	struct bshell_command_p *cmd,
 	fx_value *args,
@@ -156,12 +161,12 @@ bshell_command *bshell_command_find_static(const char *name)
 	fx_foreach(asm_v, assemblies)
 	{
 		fx_assembly *assembly = NULL;
-		fx_value_get_object(&asm_v, &assembly);
+		fx_value_get_object(asm_v, &assembly);
 		fx_iterator *types = fx_assembly_get_types(assembly);
 		fx_foreach(v, types)
 		{
 			fx_type *ty = NULL;
-			fx_value_get_object(&v, &ty);
+			fx_value_get_object(v, &ty);
 			if (fx_type_id_compare(
 				    fx_type_get_id(ty),
 				    BSHELL_TYPE_COMMAND)
@@ -283,5 +288,6 @@ FX_TYPE_DEFINITION_BEGIN(bshell_command)
 	FX_TYPE_NAME("bshell.runtime.command");
 	FX_TYPE_CLASS(bshell_command_class);
 	FX_TYPE_INSTANCE_INIT(init);
+	FX_TYPE_INSTANCE_FINI(fini);
 	FX_TYPE_INSTANCE_PRIVATE(struct bshell_command_p);
 FX_TYPE_DEFINITION_END(bshell_command)

bshell.runtime/command/function.c

@@ -0,0 +1,197 @@
+#include <bshell/command/command.h>
+#include <bshell/command/function.h>
+#include <bshell/runtime/pipeline.h>
+#include <bshell/runtime/runtime.h>
+#include <bshell/runtime/script-block.h>
+#include <bshell/status.h>
+#include <fx/collections/array.h>
+#include <fx/reflection/function.h>
+#include <fx/string.h>
+#include <fx/vector.h>
+
+struct bshell_function_p {
+	char *func_name;
+	fx_array *func_positional_params;
+	bshell_scriptblock *func_body;
+};
+
+static void init(fx_object *obj, void *priv)
+{
+	struct bshell_function_p *func_p = priv;
+	func_p->func_positional_params = fx_array_create();
+	func_p->func_body = bshell_scriptblock_create();
+}
+
+static void fini(fx_object *obj, void *priv)
+{
+	struct bshell_function_p *func_p = priv;
+	if (func_p->func_name) {
+		free(func_p->func_name);
+	}
+
+	fx_array_unref(func_p->func_positional_params);
+	bshell_scriptblock_unref(func_p->func_body);
+}
+
+static enum bshell_status get_callable_name(
+	const bshell_function *func,
+	fx_string *out)
+{
+	struct bshell_function_p *func_p
+		= fx_object_get_private(func, BSHELL_TYPE_FUNCTION);
+	fx_string_append_cstrf(out, "%s", func_p->func_name);
+	return BSHELL_SUCCESS;
+}
+
+static enum bshell_status begin_processing(bshell_command *cmd)
+{
+	return BSHELL_SUCCESS;
+}
+
+static enum bshell_status process_record(
+	bshell_command *cmd,
+	bshell_pipeline *pipeline,
+	struct bshell_runtime *rt)
+{
+	struct bshell_function_p *func_p
+		= fx_object_get_private(cmd, BSHELL_TYPE_FUNCTION);
+	bshell_runtime_push_scope(rt, func_p->func_body);
+
+	const fx_iterator *param_it
+		= fx_iterator_begin(func_p->func_positional_params);
+	size_t i = 1;
+	fx_foreach(v, param_it)
+	{
+		fx_string *param = NULL;
+		fx_value_get_object(v, &param);
+
+		const fx_value *arg = bshell_command_get_arg(cmd, i);
+		if (!arg) {
+			break;
+		}
+
+		bshell_variable *var = bshell_runtime_define_var(
+			rt,
+			fx_string_get_cstr(param));
+		bshell_variable_set_value(var, *arg);
+	}
+	fx_iterator_unref(param_it);
+#if 0
+	bshell_variable *item = bshell_runtime_define_var(rt, "_");
+	bshell_variable_set_value(item, &in);
+#endif
+
+	fx_value out = bshell_runtime_eval(rt);
+	bshell_runtime_pop_scope(rt);
+	if (fx_value_is_set(&out)) {
+		bshell_pipeline_write_value(pipeline, out, false);
+		fx_value_unset(&out);
+	}
+
+	return BSHELL_SUCCESS;
+}
+
+static enum bshell_status end_processing(bshell_command *cmd)
+{
+	return BSHELL_SUCCESS;
+}
+
+bshell_function *bshell_function_create(const char *name)
+{
+	bshell_function *out = fx_object_create(BSHELL_TYPE_FUNCTION);
+	if (!out) {
+		return NULL;
+	}
+
+	struct bshell_function_p *func
+		= fx_object_get_private(out, BSHELL_TYPE_FUNCTION);
+	func->func_name = fx_strdup(name);
+	if (!func->func_name) {
+		bshell_function_unref(out);
+		return NULL;
+	}
+
+	return out;
+}
+
+void bshell_function_add_positional_parameter(
+	bshell_function *func,
+	const char *name)
+{
+	fx_string *str = fx_string_create_from_cstr(name);
+	if (!str) {
+		return;
+	}
+
+	struct bshell_function_p *func_p
+		= fx_object_get_private(func, BSHELL_TYPE_FUNCTION);
+	fx_array_push_back(
+		func_p->func_positional_params,
+		FX_VALUE_OBJECT(str));
+	fx_string_unref(str);
+}
+
+static const char *function_get_name(const struct bshell_function_p *func)
+{
+	return func->func_name;
+}
+
+static const fx_array *function_get_positional_parameters(
+	const struct bshell_function_p *func)
+{
+	return func->func_positional_params;
+}
+
+static bshell_scriptblock *function_get_body(struct bshell_function_p *func)
+{
+	return func->func_body;
+}
+
+const char *bshell_function_get_name(const bshell_function *func)
+{
+	FX_CLASS_DISPATCH_STATIC_0(
+		BSHELL_TYPE_FUNCTION,
+		function_get_name,
+		func);
+}
+
+const fx_array *bshell_function_get_positional_parameters(
+	const bshell_function *func)
+{
+	FX_CLASS_DISPATCH_STATIC_0(
+		BSHELL_TYPE_FUNCTION,
+		function_get_positional_parameters,
+		func);
+}
+
+bshell_scriptblock *bshell_function_get_body(bshell_function *func)
+{
+	FX_CLASS_DISPATCH_STATIC_0(
+		BSHELL_TYPE_FUNCTION,
+		function_get_body,
+		func);
+}
+
+FX_TYPE_CLASS_BEGIN(bshell_function)
+	FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_object, FX_TYPE_OBJECT)
+		FX_INTERFACE_ENTRY(to_string) = NULL;
+	FX_TYPE_VTABLE_INTERFACE_END(fx_object, FX_TYPE_OBJECT)
+
+	FX_TYPE_VTABLE_INTERFACE_BEGIN(bshell_command, BSHELL_TYPE_COMMAND)
+		FX_INTERFACE_ENTRY(c_command_type) = "Function";
+		FX_INTERFACE_ENTRY(c_get_callable_name) = get_callable_name;
+		FX_INTERFACE_ENTRY(c_begin_processing) = begin_processing;
+		FX_INTERFACE_ENTRY(c_process_record) = process_record;
+		FX_INTERFACE_ENTRY(c_end_processing) = end_processing;
+	FX_TYPE_VTABLE_INTERFACE_END(bshell_command, BSHELL_TYPE_COMMAND)
+FX_TYPE_CLASS_END(bshell_function)
+
+FX_TYPE_DEFINITION_BEGIN(bshell_function)
+	FX_TYPE_ID(0x041f1918, 0x6155, 0x4cee, 0xbb01, 0xfef2d6aa1bcf);
+	FX_TYPE_NAME("bshell.runtime.function");
+	FX_TYPE_EXTENDS(BSHELL_TYPE_COMMAND);
+	FX_TYPE_CLASS(bshell_function_class);
+	FX_TYPE_INSTANCE_INIT(init);
+	FX_TYPE_INSTANCE_FINI(fini);
+	FX_TYPE_INSTANCE_PRIVATE(struct bshell_function_p);
+FX_TYPE_DEFINITION_END(bshell_function)

bshell.runtime/compile/compile.c

@@ -32,6 +32,16 @@ enum bshell_status bshell_compile(
 	}
 
 	status = compile_resolve_labels(&ctx);
+
+	while (!fx_queue_empty(&ctx.c_state)) {
+		compile_pop_state(&ctx);
+	}
+
+	while (!fx_queue_empty(&ctx.c_stack)) {
+		struct compile_value *value = compile_pop_value(&ctx);
+		compile_value_destroy(value);
+	}
+
 	if (status != BSHELL_SUCCESS) {
 		return status;
 	}

bshell.runtime/compile/expression.c

@@ -72,5 +72,6 @@ enum bshell_status compile_expression(
 		compile_value_destroy(result);
 	}
 
+	compile_pop_state(ctx);
 	return BSHELL_SUCCESS;
 }

bshell.runtime/compile/function.c

@@ -0,0 +1,39 @@
+#include <bshell/ast.h>
+#include <bshell/compile.h>
+#include <bshell/parse/token.h>
+#include <bshell/status.h>
+
+enum bshell_status bshell_compile_function(
+	struct bshell_ast_node *src,
+	bshell_function **out)
+{
+	struct bshell_func_ast_node *func_ast
+		= (struct bshell_func_ast_node *)src;
+	bshell_function *func
+		= bshell_function_create(func_ast->n_name->tok_str);
+	if (!func) {
+		return BSHELL_ERR_NO_MEMORY;
+	}
+
+	fx_queue_entry *cur = fx_queue_first(&func_ast->n_params);
+	while (cur) {
+		struct bshell_var_ast_node *var_ast = fx_unbox(
+			struct bshell_var_ast_node,
+			cur,
+			n_base.n_entry);
+		bshell_function_add_positional_parameter(
+			func,
+			var_ast->n_ident->tok_str);
+		cur = fx_queue_next(cur);
+	}
+
+	bshell_scriptblock *body = bshell_function_get_body(func);
+	enum bshell_status status = bshell_compile(func_ast->n_body, body);
+	if (status != BSHELL_SUCCESS) {
+		bshell_function_unref(func);
+		return status;
+	}
+
+	*out = func;
+	return BSHELL_SUCCESS;
+}

bshell.runtime/compile/state.c

@@ -14,8 +14,8 @@ struct compile_state *compile_push_state(
 		return NULL;
 	}
 
-	const struct compile_state_type *state_type = state_types
-		[state_type_id];
+	const struct compile_state_type *state_type
+		= state_types[state_type_id];
 	if (!state_type) {
 		return NULL;
 	}
@@ -43,10 +43,6 @@ void compile_pop_state(struct compile_ctx *ctx)
 		return;
 	}
 
-	if (!fx_queue_prev(&state->s_entry)) {
-		return;
-	}
-
 	if (state->s_type->s_compile_end) {
 		state->s_type->s_compile_end(ctx);
 	}

bshell.runtime/format/table.c

@@ -59,7 +59,7 @@ enum bshell_status format_object_table(fx_object *object, fx_stream *dest)
 
 	struct bshell_table_ctx ctx;
 	bshell_table_ctx_init(&ctx, dest);
-	fx_iterator *it = fx_iterator_begin(object);
+	const fx_iterator *it = fx_iterator_begin(object);
 	if (!it) {
 		bshell_table_ctx_prepare_columns_from_format(
 			&ctx,
@@ -68,17 +68,17 @@ enum bshell_status format_object_table(fx_object *object, fx_stream *dest)
 		bshell_table_ctx_print_headers(&ctx);
 		bshell_table_ctx_print_record(&ctx, &FX_VALUE_OBJECT(object));
 	} else {
-		fx_value first = fx_iterator_get_value(it);
-		if (first.v_type) {
+		const fx_value *first = fx_iterator_get_value(it);
+		if (first) {
 			bshell_table_ctx_prepare_columns_from_format(
 				&ctx,
-				fx_type_get_by_id(first.v_type),
+				fx_type_get_by_id(first->v_type),
 				fmt);
 		}
 		bshell_table_ctx_print_headers(&ctx);
 		fx_foreach(value, it)
 		{
-			bshell_table_ctx_print_record(&ctx, &value);
+			bshell_table_ctx_print_record(&ctx, value);
 		}
 	}
 
@@ -188,7 +188,7 @@ enum bshell_status bshell_table_ctx_prepare_columns_from_object(
 	fx_iterator *it = fx_type_get_properties(record_type);
 	fx_foreach(prop_v, it)
 	{
-		fx_array_push_back(properties, prop_v);
+		fx_array_push_back(properties, *prop_v);
 	}
 	fx_iterator_unref(it);
 

bshell.runtime/include/bshell/command/function.h

@@ -1,6 +1,8 @@
 #ifndef BSHELL_COMMAND_FUNCTION_H_
 #define BSHELL_COMMAND_FUNCTION_H_
 
+#include <bshell/runtime/script-block.h>
+#include <fx/collections/array.h>
 #include <fx/macros.h>
 
 FX_DECLS_BEGIN;
@@ -17,6 +19,14 @@ FX_TYPE_CLASS_DECLARATION_END(bshell_function)
 extern fx_type_id bshell_function_get_type(void);
 
 extern bshell_function *bshell_function_create(const char *name);
+extern void bshell_function_add_positional_parameter(
+	bshell_function *func,
+	const char *name);
+
+extern const char *bshell_function_get_name(const bshell_function *func);
+extern const fx_array *bshell_function_get_positional_parameters(
+	const bshell_function *func);
+extern bshell_scriptblock *bshell_function_get_body(bshell_function *func);
 
 FX_DECLS_END;
 

bshell.runtime/include/bshell/compile.h

@@ -1,6 +1,7 @@
 #ifndef BSHELL_COMPILE_H_
 #define BSHELL_COMPILE_H_
 
+#include <bshell/command/function.h>
 #include <bshell/runtime/script-block.h>
 
 struct bshell_ast_node;
@@ -8,5 +9,8 @@ struct bshell_ast_node;
 extern enum bshell_status bshell_compile(
 	struct bshell_ast_node *src,
 	bshell_scriptblock *dest);
+extern enum bshell_status bshell_compile_function(
+	struct bshell_ast_node *src,
+	bshell_function **out);
 
 #endif

bshell.runtime/include/bshell/runtime/runtime.h

@@ -2,6 +2,7 @@
 #define BSHELL_RUNTIME_RUNTIME_H_
 
 #include <bshell/command/command.h>
+#include <bshell/command/function.h>
 #include <bshell/runtime/script-block.h>
 #include <bshell/runtime/var.h>
 #include <fx/collections/hashtable.h>
@@ -32,6 +33,9 @@ extern bshell_variable *bshell_runtime_find_var(
 extern bshell_variable *bshell_runtime_define_var(
 	struct bshell_runtime *rt,
 	const char *name);
+extern enum bshell_status bshell_runtime_define_function(
+	struct bshell_runtime *rt,
+	bshell_function *func);
 
 extern bshell_command *bshell_runtime_find_command(
 	struct bshell_runtime *rt,

bshell.runtime/include/bshell/runtime/var.h

@@ -19,7 +19,7 @@ extern bshell_variable *bshell_variable_create(const char *name);
 
 extern const char *bshell_variable_get_name(const bshell_variable *var);
 extern const fx_value *bshell_variable_get_value(const bshell_variable *var);
-extern void bshell_variable_set_value(bshell_variable *var, fx_value *value);
+extern void bshell_variable_set_value(bshell_variable *var, fx_value value);
 
 FX_DECLS_END;
 

bshell.runtime/include/bshell/verb.h

@@ -124,6 +124,8 @@ FX_TYPE_CLASS_DECLARATION_BEGIN(bshell_verb)
 FX_TYPE_CLASS_DECLARATION_END(bshell_verb)
 
 extern enum bshell_status bshell_init_all_verbs(void);
+extern enum bshell_status bshell_cleanup_all_verbs(void);
+
 extern fx_hashtable *bshell_get_all_verbs(void);
 extern bshell_verb *bshell_verb_get_by_id(enum bshell_verb_id id);
 extern bshell_verb *bshell_verb_get_by_name(const char *name);

bshell.runtime/parse/lex/lex-internal.h

@@ -107,7 +107,7 @@ extern struct bshell_lex_state *lex_state_push(
 	struct bshell_lex_ctx *ctx,
 	enum bshell_lex_state_id state_type,
 	enum state_flags flags);
-extern void lex_state_pop(struct bshell_lex_ctx *ctx);
+extern void lex_state_pop(struct bshell_lex_ctx *ctx, bool no_preserve_root);
 extern struct bshell_lex_state *lex_state_get(struct bshell_lex_ctx *ctx);
 extern void lex_state_change(
 	struct bshell_lex_ctx *ctx,

bshell.runtime/parse/lex/lex.c

@@ -198,11 +198,14 @@ struct bshell_lex_state *lex_state_push(
 	return state;
 }
 
-void lex_state_pop(struct bshell_lex_ctx *ctx)
+void lex_state_pop(struct bshell_lex_ctx *ctx, bool no_preserve_root)
 {
 	fx_queue_entry *entry = fx_queue_last(&ctx->lex_state);
-	if (!entry || !fx_queue_prev(entry)) {
-		/* don't pop if this is the root state */
+	if (!entry) {
+		return;
+	}
+
+	if (!no_preserve_root && !fx_queue_prev(entry)) {
 		return;
 	}
 
@@ -451,6 +454,10 @@ enum bshell_status bshell_lex_ctx_cleanup(struct bshell_lex_ctx *ctx)
 		fx_string_unref(ctx->lex_tmp);
 	}
 
+	while (!fx_queue_empty(&ctx->lex_state)) {
+		lex_state_pop(ctx, true);
+	}
+
 	memset(ctx, 0x0, sizeof *ctx);
 	return BSHELL_SUCCESS;
 }
@@ -1228,7 +1235,7 @@ static bool do_lex_state_transition(
 	if (!recursive) {
 		for (unsigned int i = 0; i < state->s_nr_terminators; i++) {
 			if (state->s_terminators[i] == token) {
-				lex_state_pop(ctx);
+				lex_state_pop(ctx, false);
 				return true;
 			}
 		}
@@ -1275,7 +1282,7 @@ static bool do_lex_state_transition(
 		const struct bshell_lex_state_link *link = best_matches[i];
 		switch (link->l_type) {
 		case BSHELL_LEX_STATE_LINK_POP:
-			lex_state_pop(ctx);
+			lex_state_pop(ctx, false);
 			result = true;
 			break;
 		case BSHELL_LEX_STATE_LINK_PUSH: {

bshell.runtime/parse/lex/word.c

@@ -21,7 +21,7 @@ static enum bshell_status word_symbol(struct bshell_lex_ctx *ctx)
 		lex_state_push(ctx, BSHELL_LEX_STATE_STATEMENT, 0);
 		return BSHELL_SUCCESS;
 	case BSHELL_SYM_RIGHT_PAREN:
-		lex_state_pop(ctx);
+		lex_state_pop(ctx, false);
 
 		status = push_symbol(ctx, sym->id);
 		if (status != BSHELL_SUCCESS) {
@@ -92,7 +92,8 @@ static enum bshell_status word_content(struct bshell_lex_ctx *ctx)
 
 static enum bshell_status word_begin(struct bshell_lex_ctx *ctx)
 {
-	struct bshell_lex_token *tok = bshell_lex_token_create(BSHELL_TOK_WORD_START);
+	struct bshell_lex_token *tok
+		= bshell_lex_token_create(BSHELL_TOK_WORD_START);
 	if (!tok) {
 		return BSHELL_ERR_NO_MEMORY;
 	}
@@ -107,7 +108,8 @@ static enum bshell_status word_begin(struct bshell_lex_ctx *ctx)
 
 static enum bshell_status word_end(struct bshell_lex_ctx *ctx)
 {
-	struct bshell_lex_token *tok = bshell_lex_token_create(BSHELL_TOK_WORD_END);
+	struct bshell_lex_token *tok
+		= bshell_lex_token_create(BSHELL_TOK_WORD_END);
 	if (!tok) {
 		return BSHELL_ERR_NO_MEMORY;
 	}
@@ -121,12 +123,12 @@ static enum bshell_status word_pump_token(struct bshell_lex_ctx *ctx)
 	fx_wchar c = peek_char(ctx);
 
 	if (fx_wchar_is_space(c)) {
-		lex_state_pop(ctx);
+		lex_state_pop(ctx, false);
 		return BSHELL_SUCCESS;
 	}
 
 	if (char_has_flags(ctx, c, BSHELL_LEX_TOKEN_TERMINATES_WORD)) {
-		lex_state_pop(ctx);
+		lex_state_pop(ctx, false);
 		return BSHELL_SUCCESS;
 	}
 

bshell.runtime/parse/token.c

@@ -41,6 +41,8 @@ void bshell_lex_token_destroy(struct bshell_lex_token *tok)
 	switch (tok->tok_type) {
 	case BSHELL_TOK_WORD:
 	case BSHELL_TOK_FLAG:
+	case BSHELL_TOK_VAR:
+	case BSHELL_TOK_VAR_SPLAT:
 	case BSHELL_TOK_STRING:
 		if (tok->tok_str) {
 			free(tok->tok_str);

bshell.runtime/runtime/cmdcall.c

@@ -31,6 +31,11 @@ static void cmdcall_fini(fx_object *obj, void *priv)
 {
 	struct bshell_cmdcall_p *cmdcall = priv;
 
+	if (cmdcall->cmd_target) {
+		bshell_command_end_processing(cmdcall->cmd_target);
+		bshell_command_unref(cmdcall->cmd_target);
+	}
+
 	if (cmdcall->cmd_native_path) {
 		free(cmdcall->cmd_native_path);
 	}
@@ -44,11 +49,6 @@ static void cmdcall_fini(fx_object *obj, void *priv)
 	}
 
 	fx_vector_destroy(cmdcall->cmd_args, NULL);
-
-	if (cmdcall->cmd_target) {
-		bshell_command_end_processing(cmdcall->cmd_target);
-		bshell_command_unref(cmdcall->cmd_target);
-	}
 }
 
 static enum bshell_status cmdcall_push_arg(

bshell.runtime/runtime/eval.c

@@ -241,7 +241,7 @@ static enum bshell_status eval_instruction(
 		pool_value = bshell_scriptblock_get_pool_value(
 			scope->s_block,
 			arg,
-			FX_TYPE_CSTR);
+			FX_TYPE_STRING);
 		if (!pool_value) {
 			fprintf(stderr, "RUNTIME: invalid stlocal operand\n");
 			return BSHELL_ERR_BAD_SYNTAX;
@@ -253,7 +253,7 @@ static enum bshell_status eval_instruction(
 			var = bshell_runtime_define_var(rt, s);
 		}
 
-		bshell_variable_set_value(var, &x);
+		bshell_variable_set_value(var, x);
 		bshell_runtime_scope_push_value(scope, &x);
 		fx_value_unset(&x);
 		break;
@@ -314,7 +314,8 @@ static enum bshell_status eval_instruction(
 		bshell_cmdcall *result = bshell_cmdcall_create();
 
 		while (arg > 0) {
-			fx_value cmd_arg = bshell_runtime_scope_pop_value(scope);
+			fx_value cmd_arg
+				= bshell_runtime_scope_pop_value(scope);
 			bshell_cmdcall_push_arg(result, cmd_arg);
 			fx_value_unset(&cmd_arg);
 			arg--;
@@ -322,6 +323,7 @@ static enum bshell_status eval_instruction(
 
 		bstatus = bshell_cmdcall_resolve(result, rt);
 		if (bstatus != BSHELL_SUCCESS) {
+			bshell_cmdcall_unref(result);
 			break;
 		}
 
@@ -422,7 +424,9 @@ fx_value bshell_runtime_eval_global(
 {
 	enum bshell_status status = BSHELL_SUCCESS;
 	bshell_runtime_scope_set_block(rt->rt_global, block);
-	return runtime_eval(rt);
+	fx_value result = runtime_eval(rt);
+	bshell_runtime_scope_set_block(rt->rt_global, NULL);
+	return result;
 }
 
 fx_value bshell_runtime_eval_script(

bshell.runtime/runtime/pipeline.c

@@ -26,6 +26,7 @@ static void pipeline_fini(fx_object *obj, void *priv)
 	for (size_t i = 0; i < pipeline->p_cmds.count; i++) {
 		bshell_cmdcall_unref(pipeline->p_cmds.items[i]);
 	}
+	fx_vector_destroy(pipeline->p_cmds, NULL);
 
 	if (pipeline->p_in) {
 		fx_array_unref(pipeline->p_in);
@@ -56,10 +57,10 @@ static enum bshell_status write_value(
 		return BSHELL_SUCCESS;
 	}
 
-	fx_iterator *it = fx_iterator_begin(container);
+	const fx_iterator *it = fx_iterator_begin(container);
 	fx_foreach(v, it)
 	{
-		fx_array_push_back(dest, fx_value_copy_return(v));
+		fx_array_push_back(dest, fx_value_ref_copy_return(v));
 	}
 	fx_iterator_unref(it);
 

bshell.runtime/runtime/runtime.c

@@ -21,6 +21,10 @@ struct bshell_runtime *bshell_runtime_create(void)
 
 void bshell_runtime_destroy(struct bshell_runtime *rt)
 {
+	while (!fx_queue_empty(&rt->rt_scope)) {
+		runtime_pop_scope(rt);
+	}
+
 	fx_hashtable_unref(rt->rt_aliases);
 	free(rt);
 }
@@ -63,6 +67,31 @@ bshell_variable *bshell_runtime_define_var(
 	return var;
 }
 
+enum bshell_status bshell_runtime_define_function(
+	struct bshell_runtime *rt,
+	bshell_function *func)
+{
+	struct bshell_runtime_scope *scope = runtime_get_scope(rt);
+	if (!scope) {
+		return BSHELL_ERR_BAD_STATE;
+	}
+
+	fx_string *name
+		= fx_string_create_from_cstr(bshell_function_get_name(func));
+	if (!name) {
+		return BSHELL_ERR_NO_MEMORY;
+	}
+
+	fx_string_transform_lowercase(name);
+	fx_hashtable_put(
+		scope->s_functions,
+		&FX_VALUE_OBJECT(name),
+		&FX_VALUE_OBJECT(func));
+	fx_string_unref(name);
+
+	return BSHELL_SUCCESS;
+}
+
 bshell_command *bshell_runtime_find_command(
 	struct bshell_runtime *rt,
 	const char *callable_name)

bshell.runtime/runtime/scope.c

@@ -37,7 +37,14 @@ void runtime_pop_scope(struct bshell_runtime *rt)
 
 	struct bshell_runtime_scope *scope
 		= fx_unbox(struct bshell_runtime_scope, entry, s_entry);
-	/* TODO */
+
+	if (scope->s_block) {
+		bshell_scriptblock_unref(scope->s_block);
+	}
+
+	fx_value_unset_array(scope->s_stack.items, scope->s_stack.count);
+	var_map_cleanup(&scope->s_vars);
+	fx_vector_destroy(scope->s_stack, NULL);
 	fx_hashtable_unref(scope->s_functions);
 	free(scope);
 }
@@ -79,7 +86,11 @@ void bshell_runtime_scope_set_block(
 	struct bshell_runtime_scope *scope,
 	bshell_scriptblock *block)
 {
-	scope->s_block = block;
+	if (scope->s_block) {
+		bshell_scriptblock_unref(scope->s_block);
+	}
+
+	scope->s_block = bshell_scriptblock_ref(block);
 	scope->s_ip = 0;
 	bshell_scriptblock_get_text(block, &scope->s_instr, &scope->s_nr_instr);
 	bshell_scriptblock_get_pool(block, &scope->s_pool, &scope->s_nr_pool);

bshell.runtime/runtime/var-map.c

@@ -1,7 +1,16 @@
 #include "var-map.h"
 
+static void var_entry_cleanup(fx_namemap_entry *entry)
+{
+	struct var_map_entry *map_entry
+		= fx_unbox(struct var_map_entry, entry, e_entry);
+	bshell_variable_unref(map_entry->e_var);
+	free(map_entry);
+}
+
 void var_map_cleanup(struct var_map *map)
 {
+	fx_namemap_cleanup(&map->m_vars, var_entry_cleanup);
 }
 
 enum bshell_status var_map_put(struct var_map *map, bshell_variable *var)
@@ -27,9 +36,7 @@ bshell_variable *var_map_get(struct var_map *map, const char *name)
 		return NULL;
 	}
 
-	struct var_map_entry *entry = fx_unbox(
-		struct var_map_entry,
-		e,
-		e_entry);
+	struct var_map_entry *entry
+		= fx_unbox(struct var_map_entry, e, e_entry);
 	return entry->e_var;
 }

bshell.runtime/runtime/var.c

@@ -29,10 +29,10 @@ static const fx_value *variable_get_value(const struct bshell_variable_p *var)
 	return &var->var_value;
 }
 
-static void variable_set_value(struct bshell_variable_p *var, fx_value *value)
+static void variable_set_value(struct bshell_variable_p *var, fx_value value)
 {
 	fx_value_unset(&var->var_value);
-	fx_value_copy(&var->var_value, value);
+	var->var_value = fx_value_copy_return(value);
 }
 
 bshell_variable *bshell_variable_create(const char *name)
@@ -70,7 +70,7 @@ const fx_value *bshell_variable_get_value(const bshell_variable *var)
 		var);
 }
 
-void bshell_variable_set_value(bshell_variable *var, fx_value *value)
+void bshell_variable_set_value(bshell_variable *var, fx_value value)
 {
 	FX_CLASS_DISPATCH_STATIC_V(
 		BSHELL_TYPE_VARIABLE,

bshell.runtime/script-block.c

@@ -18,21 +18,20 @@ struct bshell_scriptblock_p {
 	fx_namemap b_strings;
 };
 
-static fx_status pool_destroy(void *p)
+static void cache_entry_cleanup(fx_namemap_entry *e)
 {
-	fx_value_unset(p);
-	return FX_SUCCESS;
+	struct string_cache_entry *entry
+		= fx_unbox(struct string_cache_entry, e, e_entry);
+	free(entry);
 }
 
-static fx_vector_ops pool_ops = {
-	.v_destroy = pool_destroy,
-};
-
 static void scriptblock_fini(fx_object *obj, void *priv)
 {
 	struct bshell_scriptblock_p *block = priv;
 
-	fx_vector_destroy(block->b_pool, &pool_ops);
+	fx_namemap_cleanup(&block->b_strings, cache_entry_cleanup);
+	fx_value_unset_array(block->b_pool.items, block->b_pool.count);
+	fx_vector_destroy(block->b_pool, NULL);
 	fx_vector_destroy(block->b_text, NULL);
 }
 
@@ -125,7 +124,7 @@ static unsigned long scriptblock_add_pool_value(
 	fx_value *value)
 {
 	unsigned long id = block->b_pool.count;
-	fx_value *slot = fx_vector_emplace_back(block->b_pool, &pool_ops);
+	fx_value *slot = fx_vector_emplace_back(block->b_pool, NULL);
 	if (!slot) {
 		return (unsigned long)-1;
 	}
@@ -176,7 +175,7 @@ static unsigned long scriptblock_get_string(
 	}
 
 	unsigned long index = block->b_pool.count;
-	fx_value *slot = fx_vector_emplace_back(block->b_pool, &pool_ops);
+	fx_value *slot = fx_vector_emplace_back(block->b_pool, NULL);
 	if (!slot) {
 		goto cleanup;
 	}

bshell.runtime/verb.c

@@ -25,9 +25,8 @@ bshell_verb *bshell_verb_create(
 		return NULL;
 	}
 
-	struct bshell_verb_p *verb_p = fx_object_get_private(
-		verb,
-		BSHELL_TYPE_VERB);
+	struct bshell_verb_p *verb_p
+		= fx_object_get_private(verb, BSHELL_TYPE_VERB);
 
 	verb_p->v_id = id;
 	verb_p->v_name = name;
@@ -75,9 +74,8 @@ static fx_status get_name(
 {
 	bshell_verb *verb = NULL;
 	fx_value_get_object(verb_v, &verb);
-	struct bshell_verb_p *verb_p = fx_object_get_private(
-		verb,
-		BSHELL_TYPE_VERB);
+	struct bshell_verb_p *verb_p
+		= fx_object_get_private(verb, BSHELL_TYPE_VERB);
 
 	*out = FX_CSTR(verb_p->v_name);
 	return FX_SUCCESS;
@@ -90,9 +88,8 @@ static fx_status get_alias_prefix(
 {
 	bshell_verb *verb = NULL;
 	fx_value_get_object(verb_v, &verb);
-	struct bshell_verb_p *verb_p = fx_object_get_private(
-		verb,
-		BSHELL_TYPE_VERB);
+	struct bshell_verb_p *verb_p
+		= fx_object_get_private(verb, BSHELL_TYPE_VERB);
 	*out = FX_CSTR(verb_p->v_alias_prefix);
 	return FX_SUCCESS;
 }
@@ -104,9 +101,8 @@ static fx_status get_group(
 {
 	bshell_verb *verb = NULL;
 	fx_value_get_object(verb_v, &verb);
-	struct bshell_verb_p *verb_p = fx_object_get_private(
-		verb,
-		BSHELL_TYPE_VERB);
+	struct bshell_verb_p *verb_p
+		= fx_object_get_private(verb, BSHELL_TYPE_VERB);
 	*out = FX_CSTR(verb_p->v_group);
 	return FX_SUCCESS;
 }
@@ -118,13 +114,17 @@ static fx_status get_description(
 {
 	bshell_verb *verb = NULL;
 	fx_value_get_object(verb_v, &verb);
-	struct bshell_verb_p *verb_p = fx_object_get_private(
-		verb,
-		BSHELL_TYPE_VERB);
+	struct bshell_verb_p *verb_p
+		= fx_object_get_private(verb, BSHELL_TYPE_VERB);
 	*out = FX_CSTR(verb_p->v_description);
 	return FX_SUCCESS;
 }
 
+static void verb_fini(fx_object *obj, void *priv)
+{
+	struct bshell_verb_p *verb = priv;
+}
+
 FX_TYPE_CLASS_BEGIN(bshell_verb)
 	FX_TYPE_VTABLE_INTERFACE_BEGIN(fx_object, FX_TYPE_OBJECT)
 		FX_INTERFACE_ENTRY(to_string) = NULL;
@@ -143,6 +143,7 @@ FX_TYPE_DEFINITION_BEGIN(bshell_verb)
 	FX_TYPE_NAME("bshell.verb");
 	FX_TYPE_CLASS(bshell_verb_class);
 	FX_TYPE_INSTANCE_PRIVATE(struct bshell_verb_p);
+	FX_TYPE_INSTANCE_FINI(verb_fini);
 FX_TYPE_DEFINITION_END(bshell_verb)
 
 static fx_hashtable *all_verbs_by_name = NULL;
@@ -405,18 +406,18 @@ enum bshell_status bshell_init_all_verbs(void)
 		"dc",
 		"Communications",
 		"Breaks the link between a source and a destination");
-	PUT_VERB(
-		READ,
-		"Read",
-		"rd",
-		"Communications",
-		"Acquires information from a source");
 	PUT_VERB(
 		RECEIVE,
 		"Receive",
 		"rc",
 		"Communications",
 		"Accepts information sent from a source");
+	PUT_VERB(
+		READ,
+		"Read",
+		"rd",
+		"Communications",
+		"Acquires information from a source");
 	PUT_VERB(
 		SEND,
 		"Send",
@@ -788,6 +789,16 @@ enum bshell_status bshell_init_all_verbs(void)
 	return BSHELL_SUCCESS;
 }
 
+enum bshell_status bshell_cleanup_all_verbs(void)
+{
+	for (size_t i = 0; i < __BSHELL_VERB_MAX; i++) {
+		all_verbs_by_id[i] = NULL;
+	}
+
+	fx_hashtable_unref(all_verbs_by_name);
+	return BSHELL_SUCCESS;
+}
+
 fx_hashtable *bshell_get_all_verbs(void)
 {
 	return all_verbs_by_name;
@@ -804,9 +815,8 @@ bshell_verb *bshell_verb_get_by_id(enum bshell_verb_id id)
 
 bshell_verb *bshell_verb_get_by_name(const char *name)
 {
-	const fx_value *val = fx_hashtable_get(
-		all_verbs_by_name,
-		&FX_CSTR(name));
+	const fx_value *val
+		= fx_hashtable_get(all_verbs_by_name, &FX_CSTR(name));
 	if (!val) {
 		return NULL;
 	}