0004706: No trailing semicolon allowed in list and array patterns

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Date Submitted

Last Update

0004706

OCaml

Camlp4

public

2009-01-31 02:07

2012-09-25 20:06

Reporter

Martin Jambon

Assigned To

ertai

Priority

normal

Severity

trivial

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

3.11.0

Target Version

Fixed in Version

3.12.0

Summary

0004706: No trailing semicolon allowed in list and array patterns

Description

Trailing semicolons e.g. [ 1; ] in patterns for arrays and lists are not allowed by camlp4o.

The reference manual does not mention that it should be legal, but the compilers tolerate them everywhere (patterns and expressions), so it seems natural to allow them in the camlp4o parser as well.

(*
  This is foo.ml

  camlp4o -parser pa_foo.cmo -printer o foo.ml
  ocamlc -c -pp 'camlp4o -parser pa_foo.cmo' foo.ml
*)

match [| |] with
    [| 1; |] -> ()
  | _ -> ()

(**************************************)

$ camlp4o -printer o foo.ml
File "foo.ml", line 9, characters 8-9:
Parse error: [sem_patt] expected after ";" (in [sem_patt])

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Issue History
Date Modified	Username	Field	Change
2009-01-31 02:07	Martin Jambon	New Issue
2009-03-28 17:18	xleroy	Status	new => assigned
2009-03-28 17:18	xleroy	Assigned To	=> ertai
2011-02-15 12:11	xclerc	Status	assigned => resolved
2011-02-15 12:11	xclerc	Fixed in Version	=> 3.12.0
2011-02-15 12:11	xclerc	Resolution	open => fixed
2012-09-25 20:06	xleroy	Status	resolved => closed