public function __construct($scanner, $_symTable)
{
parent::requireKeyword($scanner, 'case');
$scanner->next();
$this->condition = new Expression($scanner, $_symTable);
parent::requireKeyword($scanner, 'of');
$scanner->next();
Globals::$switchDepth++;
while (true) {
if ($scanner->get()->isKeyword('else')) {
$scanner->next();
$this->default = CompoundStatement::smartParse($scanner, $_symTable);
parent::semicolonPass($scanner);
break;
}
$caseCondition = new Expression($scanner, $_symTable);
$caseCondition = TypeCast::tryTypeCast($caseCondition, $this->condition->symType, false);
parent::requireOperator($scanner, ':');
$scanner->next();
$caseStatements = CompoundStatement::smartParse($scanner, $_symTable);
$this->cases[] = ["condition" => $caseCondition, "statements" => $caseStatements];
parent::semicolonPass($scanner);
if ($scanner->get()->isKeyword('end')) {
break;
}
}
Globals::$switchDepth--;
parent::requireKeyword($scanner, 'end');
$scanner->next();
}
public function __construct($scanner, $_symTable)
{
parent::requireKeyword($scanner, 'for');
$scanner->next();
$this->counter = VariableAccess::parse($scanner, $_symTable);
if (!SymSimpleType::equal($this->counter->symType, Globals::getSimpleType('integer'))) {
SemanticException::raw($scanner, 'Counter must be integer');
}
parent::requireOperator($scanner, ':=');
$scanner->next();
$this->from = new Expression($scanner, $_symTable);
$this->from = TypeCast::tryTypeCast($this->from, 'integer');
switch ($scanner->get()->getValue()) {
case 'to':
$this->direction = self::DIRECTION_ASC;
break;
case 'downto':
$this->direction = self::DIRECTION_DESC;
break;
default:
parent::simpleException($scanner, ['<KEYWORD \'to\'>', '<KEYWORD \'downto\'>']);
}
$scanner->next();
$this->to = new Expression($scanner, $_symTable);
$this->to = TypeCast::tryTypeCast($this->to, 'integer');
parent::requireKeyword($scanner, 'do');
$scanner->next();
Globals::$loopDepth++;
$this->statements = CompoundStatement::smartParse($scanner, $_symTable);
Globals::$loopDepth--;
}
public function __construct($scanner, $_symTable)
{
parent::requireKeyword($scanner, 'while');
$scanner->next();
$this->condition = new Expression($scanner, $_symTable);
$this->condition = TypeCast::tryTypeCast($this->condition, 'boolean');
parent::requireKeyword($scanner, 'do');
$scanner->next();
Globals::$loopDepth++;
$this->statements = CompoundStatement::smartParse($scanner, $_symTable);
Globals::$loopDepth--;
}
