// Add provided methods to the given entity
static bool trait_entity(ast_t* entity, pass_opt_t* options)
{
assert(entity != NULL);
int state = ast_checkflag(entity,
AST_FLAG_RECURSE_1 | AST_FLAG_DONE_1 | AST_FLAG_ERROR_1);
// Check for recursive definitions
switch(state)
{
case 0:
ast_setflag(entity, AST_FLAG_RECURSE_1);
break;
case AST_FLAG_RECURSE_1:
ast_error(entity, "traits and interfaces can't be recursive");
ast_clearflag(entity, AST_FLAG_RECURSE_1);
ast_setflag(entity, AST_FLAG_ERROR_1);
return false;
case AST_FLAG_DONE_1:
return true;
case AST_FLAG_ERROR_1:
return false;
default:
assert(0);
return false;
}
setup_local_methods(entity);
bool r =
provides_list(entity, options) && // Stage 1
provided_methods(options, entity) && // Stage 2
field_delegations(entity) && // Stage 3
resolve_methods(entity, options); // Stage 4
tidy_up(entity);
ast_clearflag(entity, AST_FLAG_RECURSE_1);
ast_setflag(entity, AST_FLAG_DONE_1);
return r;
}
// Add provided methods to the given entity
static bool trait_entity(ast_t* entity, pass_opt_t* options)
{
assert(entity != NULL);
ast_state_t state = (ast_state_t)(uint64_t)ast_data(entity);
// Check for recursive definitions
switch(state)
{
case AST_STATE_INITIAL:
ast_setdata(entity, (void*)AST_STATE_INPROGRESS);
break;
case AST_STATE_INPROGRESS:
ast_error(entity, "traits and interfaces can't be recursive");
ast_setdata(entity, (void*)AST_STATE_ERROR);
return false;
case AST_STATE_DONE:
return true;
case AST_STATE_ERROR:
return false;
default:
assert(0);
return false;
}
setup_local_methods(entity);
bool r =
provides_list(entity, options) && // Stage 1
provided_methods(entity) && // Stage 2
field_delegations(entity) && // Stage 3
resolve_methods(entity, options); // Stage 4
tidy_up(entity);
ast_setdata(entity, r ? (void*)AST_STATE_DONE : (void*)AST_STATE_ERROR);
return r;
}
