Trying to rebuild Jison parser

[jscriptcoder]

Hi guys,

I'm trying to run "cake build:parser" without making any change in the source code but after rebuilding the Jison parser there seem to be some changes in lib/parser.js that is causing an error when trying to run "cake" again:

TypeError: In Cakefile, Cannot read property 'first_line' of undefined

The problem seems to be in parser.js "lib/parser.js:621". I can see new code that wasn't there before rebuilding the parser:

yyval._$ = {
    first_line: lstack[lstack.length-(len||1)].first_line,
    last_line: lstack[lstack.length-1].last_line,
    first_column: lstack[lstack.length-(len||1)].first_column,
    last_column: lstack[lstack.length-1].last_column,
};

I was expecting no changes in parse.js since as I said I'm not modifying anything in the grammar or anywhere, so I was wondering whether I have some different version of Jison ? I'm using Jison v0.2.2

Any idea about what might be happening ?

Thanks

[jscriptcoder]

It was down to the version. I installed Jison 0.2.0 and now there is no problem when I create the parser

[jashkenas]

This is (I think) a Jison bug in 0.2.2. Use version 0.2.1 for now. I've opened a ticket for the issue here:

https://github.com/zaach/jison/issues#issue/34

[thejh]

zaach confirmed that it's a jison bug.

[jashkenas]

And the bug has since been fixed ... closing the ticket.