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camlp4o tuple versus if-then-else conditional precedence does not match the Yacc parser #4532

vicuna opened this Issue Apr 11, 2008 · 1 comment


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vicuna commented Apr 11, 2008

Original bug ID: 4532
Reporter: berke
Assigned to: ertai
Status: closed (set by @xavierleroy on 2010-04-29T12:31:31Z)
Resolution: fixed
Priority: normal
Severity: major
Version: 3.10.1
Fixed in version: 3.11+dev
Category: -for Camlp4 use

Bug description

The following two files, while equivalent under Ocaml's Yacc parser, are not
under camlp4o. This can cause type errors or undetected bugs.


let x =
[ "a", if true then 1 else 2;
"b", 3 ]

let x =
[ "a", (if true then 1 else 2);
"b", 3 ]


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vicuna commented Oct 4, 2008

Comment author: ertai

Thanks for the report, this in now fixed in the CVS.

PS: However one should perhaps avoid to rely on this kind of precedence...

@vicuna vicuna closed this Apr 29, 2010

@vicuna vicuna added camlp4 bug labels Mar 14, 2019

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