CastExpression::CastExpression(int lno, int ct, Expression *arg) {
setKind(ECAST);
setLineNo(lno);
castTo = ct;
setType(0); // set as the default expression type
if (arg != NULL)
operand = arg;
else
throw AstException("CastExpression::CastExpression: NULL arg\n");
}
AssignStatement::AssignStatement( int lno, const char *name, Expression *rhs )
{
setKind( SASSIGN );
setLineNo( lno );
lhsName = name;
entry = NULL;
index = NULL;
if( rhs != NULL )
expr = rhs;
else
throw AstException( "AssignStatement::AssignStatement: NULL rhs expression\n" );
}
BinaryExpression::BinaryExpression( int lno, int op, Expression *left, Expression *right )
{
setKind( EBINARY );
setLineNo( lno );
oper = op;
setType( 0 ); // set as the default expression type
if( left != NULL )
leftOperand = left;
else
throw AstException( "BinaryExpression::BinaryExpression: NULL left operand\n" );
if( right != NULL )
rightOperand = right;
else
throw AstException( "BinaryExpression::BinaryExpression: NULL right operand\n" );
}
IfStatement::IfStatement( int lno, Expression *e, Statement *ts, Statement *es )
{
setKind( SIF );
setLineNo( lno );
if( e != NULL )
expr = e;
else
throw AstException( "IfStatement::IfStatement: NULL expression\n" );
if( ts != NULL )
thenStmt = ts;
else
throw AstException( "IfStatement::IfStatement: NULL then statement node\n" );
elseStmt = es;
}