/**
* CTRWalkerAssignment
*
* Processes an assignment operation.
*/
ctr_object* ctr_cwlk_assignment(ctr_tnode* node) {
char wasReturn = 0;
ctr_tlistitem* assignmentItems = node->nodes;
ctr_tnode* assignee = assignmentItems->node;
ctr_tlistitem* valueListItem = assignmentItems->next;
ctr_tnode* value = valueListItem->node;
ctr_object* x;
ctr_object* result;
if (ctr_flag_sandbox && ++ctr_sandbox_steps>CTR_MAX_STEPS_LIMIT) exit(1);
if (CtrStdFlow == NULL) {
ctr_callstack[ctr_callstack_index++] = assignee;
}
x = ctr_cwlk_expr(value, &wasReturn);
if (assignee->modifier == 1) {
result = ctr_assign_value_to_my(ctr_build_string(assignee->value, assignee->vlen), x);
} else if (assignee->modifier == 2) {
result = ctr_assign_value_to_local(ctr_build_string(assignee->value, assignee->vlen), x);
} else {
result = ctr_assign_value(ctr_build_string(assignee->value, assignee->vlen), x);
}
if (CtrStdFlow == NULL) {
ctr_callstack_index--;
}
return result;
}
/**
* CTRWalkerAssignment
*
* Processes an assignment operation.
*/
ctr_object *
ctr_cwlk_assignment (ctr_tnode * node)
{
char wasReturn = 0;
ctr_tlistitem *assignmentItems = node->nodes;
ctr_tnode *assignee = assignmentItems->node;
ctr_tlistitem *valueListItem = assignmentItems->next;
ctr_tnode *value = valueListItem->node;
ctr_object *x;
ctr_object *result;
char ret;
if (CtrStdFlow == NULL)
{
ctr_callstack[ctr_callstack_index++] = assignee;
}
x = ctr_cwlk_expr (value, &wasReturn);
if (!x)
{
CtrStdFlow = ctr_build_string_from_cstring ("NULL expression");
return NULL;
}
if (assignee->type == CTR_AST_NODE_REFERENCE)
{
if (assignee->modifier == 1)
{
result = ctr_assign_value_to_my (ctr_build_string (assignee->value, assignee->vlen), x);
}
else if (assignee->modifier == 2)
{
result = ctr_assign_value_to_local (ctr_build_string (assignee->value, assignee->vlen), x);
}
else if (assignee->modifier == 3)
{
result = ctr_assign_value (ctr_build_string (assignee->value, assignee->vlen), x); //Handle lexical scoping
}
else
{
result = ctr_assign_value (ctr_build_string (assignee->value, assignee->vlen), x);
}
}
else
{
int old_replace = ctr_cwlk_replace_refs;
ctr_cwlk_replace_refs = 1;
ctr_cwlk_last_msg_level = ctr_cwlk_msg_level;
ctr_object *y = ctr_cwlk_expr (assignee, &ret);
ctr_cwlk_replace_refs = old_replace; //set back in case we didn't reset
result = ctr_send_message_variadic (x, "unpack:", 7, 1, y);
ctr_object *old_result = NULL;
while (old_result != result && result->info.type == CTR_OBJECT_TYPE_OTBLOCK)
result = ctr_block_run_here (result, NULL, (old_result = result));
}
if (CtrStdFlow == NULL)
{
ctr_callstack_index--;
}
return result;
}
/**
* BlockRun
*
* Runs a block of code.
*/
ctr_object* ctr_block_run(ctr_object* myself, ctr_argument* argList, ctr_object* my) {
ctr_object* result;
ctr_tnode* node = myself->value.block;
ctr_tlistitem* codeBlockParts = node->nodes;
ctr_tnode* codeBlockPart1 = codeBlockParts->node;
ctr_tnode* codeBlockPart2 = codeBlockParts->next->node;
ctr_tlistitem* parameterList = codeBlockPart1->nodes;
ctr_tnode* parameter;
ctr_object* a;
ctr_open_context();
if (parameterList && parameterList->node) {
parameter = parameterList->node;
while(1) {
if (parameter && argList->object) {
a = argList->object;
ctr_assign_value_to_local(ctr_build_string(parameter->value, parameter->vlen), a);
}
if (!argList->next) break;
argList = argList->next;
if (!parameterList->next) break;
parameterList = parameterList->next;
parameter = parameterList->node;
}
}
ctr_assign_value_to_local(ctr_build_string("me",2), my);
ctr_assign_value_to_local(ctr_build_string("thisBlock",9), myself); /* otherwise running block may get gc'ed. */
result = ctr_cwlk_run(codeBlockPart2);
if (result == NULL) result = my;
ctr_close_context();
if (CtrStdError != NULL && CtrStdError != CtrStdNil) {
ctr_object* catchBlock = malloc(sizeof(ctr_object));
catchBlock = ctr_internal_object_find_property(myself, ctr_build_string("catch",5), 0);
if (catchBlock != NULL) {
ctr_argument* a = CTR_CREATE_ARGUMENT();
a->object = CtrStdError;
CtrStdError = NULL;
ctr_block_run(catchBlock, a, my);
result = myself;
}
}
return result;
}