Method AppendOperations

server/plpgsql/statements.go:269–297

AppendOperations implements the interface Statement.

(ops *[]InterpreterOperation, stack *InterpreterStack)

// AppendOperations implements the interface Statement.
func (stmt Goto) AppendOperations(ops *[]InterpreterOperation, stack *InterpreterStack) error {
	if len(stmt.Label) > 0 {
		*ops = append(*ops, InterpreterOperation{
			OpCode:      OpCode_Goto,
			PrimaryData: stmt.Label,
			Index:       int(stmt.Offset),
		})
	} else if stmt.NearestScopeOp {
		label := stack.GetCurrentLabel()
		if len(label) == 0 {
			if stmt.Offset > 0 {
				return errors.New("EXIT cannot be used outside a loop, unless it has a label")
			} else {
				return errors.New("CONTINUE cannot be used outside a loop")
			}
		}
		*ops = append(*ops, InterpreterOperation{
			OpCode:      OpCode_Goto,
			PrimaryData: label,
			Index:       int(stmt.Offset),
		})
	} else {
		*ops = append(*ops, InterpreterOperation{
			OpCode: OpCode_Goto,
			Index:  len(*ops) + int(stmt.Offset),
		})
	}
	return nil
}

// If represents an IF condition, alongside its Goto offset if the condition is true.
type If struct {