71 lines
2.6 KiB
OCaml
71 lines
2.6 KiB
OCaml
(***********************************************************************)
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(* *)
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(* OCaml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1997 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(* Auxiliary type for reporting syntax errors *)
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open Format
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type error =
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Unclosed of Location.t * string * Location.t * string
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| Expecting of Location.t * string
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| Not_expecting of Location.t * string
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| Applicative_path of Location.t
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| Variable_in_scope of Location.t * string
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| Other of Location.t
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exception Error of error
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exception Escape_error
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let report_error ppf = function
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| Unclosed(opening_loc, opening, closing_loc, closing) ->
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if !Location.input_name = "//toplevel//"
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&& Location.highlight_locations ppf opening_loc closing_loc
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then fprintf ppf "Syntax error: '%s' expected, \
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the highlighted '%s' might be unmatched" closing opening
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else begin
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fprintf ppf "%aSyntax error: '%s' expected@."
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Location.print_error closing_loc closing;
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fprintf ppf "%aThis '%s' might be unmatched"
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Location.print_error opening_loc opening
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end
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| Expecting (loc, nonterm) ->
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fprintf ppf
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"%a@[Syntax error: %s expected.@]"
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Location.print_error loc nonterm
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| Not_expecting (loc, nonterm) ->
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fprintf ppf
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"%a@[Syntax error: %s not expected.@]"
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Location.print_error loc nonterm
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| Applicative_path loc ->
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fprintf ppf
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"%aSyntax error: applicative paths of the form F(X).t \
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are not supported when the option -no-app-func is set."
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Location.print_error loc
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| Variable_in_scope (loc, var) ->
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fprintf ppf
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"%a@[In this scoped type, variable '%s@ \
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is reserved for the local type %s.@]"
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Location.print_error loc var var
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| Other loc ->
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fprintf ppf "%aSyntax error" Location.print_error loc
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let location_of_error = function
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| Unclosed(l,_,_,_)
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| Applicative_path l
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| Variable_in_scope(l,_)
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| Other l
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| Not_expecting (l, _)
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| Expecting (l, _) -> l
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