package mssql

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mssql
- Mssql
  - Error
  - Param
  - Row

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Module for the general Mssql exception type Mssql_error. This lets us raise nice exception that always have their source code position, and optionally contain a query string, parameters, formatted query string, and result rows

type t = {

msg : string;
reraised_exn : Core_kernel.Exn.t option;
here : Core_kernel.Source_code_position.t;
query : string option;
params : Mssql__.Db_field.t option list;
formatted_query : string option;
results : Row.t list list;

}

val sexp_of_t : t -> Ppx_sexp_conv_lib.Sexp.t

exception Mssql_error of t

val failwith : 
  ?query:string ->
  ?params:Mssql__.Db_field.t option list ->
  ?formatted_query:string ->
  ?results:Row.t list list ->
  ?exn:Core_kernel.Exn.t ->
  ?backtrace:Core_kernel.Caml.Printexc.raw_backtrace ->
  Core_kernel.Source_code_position.t ->
  string ->
  _

failwith [%here] msg raises a Mssql_error with the given options and message

val failwithf : 
  ?query:string ->
  ?params:Mssql__.Db_field.t option list ->
  ?formatted_query:string ->
  ?results:Row.t list list ->
  ?exn:Core_kernel.Exn.t ->
  ?backtrace:Core_kernel.Caml.Printexc.raw_backtrace ->
  Core_kernel.Source_code_position.t ->
  ('a, unit, string, _) Core_kernel.format4 ->
  'a

failwithf [%here] "%..." msg raises a Mssql_error with the given options and a sprintf formatted message

val with_wrap : 
  ?query:string ->
  ?params:Mssql__.Db_field.t option list ->
  ?formatted_query:string ->
  ?results:Row.t list list ->
  Core_kernel.Source_code_position.t ->
  (unit -> 'a) ->
  'a

with_wrap_dblib_error [%here] f calls f and if it throws an exception, wraps the error in Mssql_error. There are special cases for if the exn thrown is already Mssql_error (we always preserve the %here and preserve the other info if not set), and for Dblib.Error (using the message directly, to make exceptions more readable -- although we also set reraised_exn so the original info is all there)