quinn-os/my-basic
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+added support to store a routine in a variable by call statement.

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This commit is contained in:
paladin-t 2015-12-11 11:15:45 +08:00
parent c1c572870c
commit 28ab5dd243
2 changed files with 62 additions and 12 deletions
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3
HISTORY
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@ -1,3 +1,6 @@
Dec. 11 2015
Added support to store a routine in a variable by CALL statement
Dec. 10 2015
Developing class, added a NEW statement to duplicate a class instance

71
core/my_basic.c
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@ -2795,7 +2795,9 @@ int _calc_expression(mb_interpreter_t* s, _ls_node_t** l, _object_t** val) {
#ifdef MB_ENABLE_CLASS
c->type == _DT_CLASS ||
#endif /* MB_ENABLE_CLASS */
c->type == _DT_VAR || c->type == _DT_USERTYPE || c->type == _DT_USERTYPE_REF || c->type == _DT_ARRAY)) {
c->type == _DT_ROUTINE ||
c->type == _DT_VAR || c->type == _DT_USERTYPE || c->type == _DT_USERTYPE_REF || c->type == _DT_ARRAY)
) {
_set_current_error(s, SE_RN_INVALID_DATA_TYPE, 0);
result = MB_FUNC_ERR;
@ -2832,7 +2834,8 @@ int _calc_expression(mb_interpreter_t* s, _ls_node_t** l, _object_t** val) {
#ifdef MB_ENABLE_CLASS
c->type == _DT_CLASS ||
#endif /* MB_ENABLE_CLASS */
c->type == _DT_ARRAY
c->type == _DT_ARRAY ||
c->type == _DT_ROUTINE
) {
_destroy_object_capsule_only(c, 0);
} else {
@ -3723,7 +3726,7 @@ _end_import:
}
#endif /* MB_ENABLE_CLASS */
/* _routine_t */
if(context->last_symbol) {
if(context->last_symbol && !_is_bracket(sym[0])) {
glbsyminscope = _search_identifier_in_scope_chain(s, 0, sym, 0);
if(glbsyminscope && ((_object_t*)glbsyminscope->data)->type == _DT_ROUTINE) {
if(_IS_FUNC(context->last_symbol, _core_def))
@ -6684,6 +6687,10 @@ _retry:
} else {
mb_assert(0 && "Impossible.");
}
} else if(obj->data.variable->data->type == _DT_ROUTINE) {
obj = obj->data.variable->data;
goto _retry;
} else {
/* Do not need to path */
result = _core_let(s, (void**)(&ast));
@ -9312,7 +9319,10 @@ int _core_let(mb_interpreter_t* s, void** l) {
#else /* MB_ENABLE_COLLECTION_LIB */
var->data->data = val->data;
#endif /* MB_ENABLE_COLLECTION_LIB */
var->data->ref = val->ref;
if(val->type == _DT_ROUTINE)
var->data->ref = 1;
else
var->data->ref = val->ref;
}
} else if(arr && literally) {
if(val->type != _DT_ANY) {
@ -10043,6 +10053,8 @@ int _core_call(mb_interpreter_t* s, void** l) {
_ls_node_t* ast = 0;
_object_t* obj = 0;
_routine_t* routine = 0;
mb_value_t ret;
_ls_node_t* pathed = 0;
mb_assert(s && l);
@ -10050,22 +10062,57 @@ int _core_call(mb_interpreter_t* s, void** l) {
ast = ast->next;
obj = (_object_t*)(ast->data);
_retry:
switch(obj->type) {
case _DT_FUNC:
if(_IS_FUNC(obj, _core_open_bracket)) {
mb_check(mb_attempt_open_bracket(s, l));
ast = ast->next;
obj = (_object_t*)(ast->data);
if(!obj || obj->type != _DT_ROUTINE) {
_handle_error_on_obj(s, SE_RN_ROUTINE_EXPECTED, 0, DON(ast), MB_FUNC_ERR, _exit, result);
}
ret.type = MB_DT_ROUTINE;
ret.value.routine = obj->data.routine;
ast = ast->next;
*l = ast;
mb_check(mb_attempt_close_bracket(s, l));
mb_check(mb_push_value(s, l, ret));
}
break;
case _DT_VAR:
if(obj->data.variable->data->type == _DT_ROUTINE) {
obj = obj->data.variable->data;
goto _retry;
}
#ifdef MB_ENABLE_CLASS
if(obj->type == _DT_VAR) {
_ls_node_t* pathed = _search_identifier_in_scope_chain(s, 0, obj->data.variable->name, obj->data.variable->pathing);
pathed = _search_identifier_in_scope_chain(s, 0, obj->data.variable->name, obj->data.variable->pathing);
if(pathed && pathed->data)
obj = (_object_t*)pathed->data;
}
/* Fall through */
#else /* MB_ENABLE_CLASS */
mb_unrefvar(pathed);
#endif /* MB_ENABLE_CLASS */
routine = (_routine_t*)(obj->data.routine);
case _DT_ROUTINE:
routine = (_routine_t*)(obj->data.routine);
result = _eval_routine(s, &ast, 0, 0, routine, _has_routine_lex_arg, _pop_routine_lex_arg);
if(ast)
ast = ast->prev;
result = _eval_routine(s, &ast, 0, 0, routine, _has_routine_lex_arg, _pop_routine_lex_arg);
if(ast)
ast = ast->prev;
break;
default:
break;
}
*l = ast;
_exit:
return result;
}