TypeError: undefined is not an object (evaluating 'this.yy.parser') #358
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GerHobbelt
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- cleanup: clean up the lexer condition stack better by better matching `pushState()` actions with their matching `popState()` counterparts: this is non-trivial in the current lexer grammar though... - defensive coding: fix situations like zaach/jison#358 / handlebars-lang/handlebars.js#1368 in the spurious case where the lexer `parseError()` API is invoked *before* the `setInput()` API is invoked (which would *always* set up a non-NULL (though possibly *empty*) `this.yy` lexer context. (Original jison (https://github.com/zaach/jison) doesn't do the latter either, BTW)
GerHobbelt
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…ng/handlebars.js#1368 in the spurious case where the lexer `parseError()` API is invoked *before* the `setInput()` API is invoked (which would *always* set up a non-NULL (though possibly *empty*) `this.yy` lexer context. (Original jison (https://github.com/zaach/jison) doesn't do the latter either, BTW)
GerHobbelt
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I am using handlebars.js, which uses the lexer of jison in the source code. I found out that an invalid template can crash the library at the lexer generated by jison.
The following JSFiddle reproduces the error.
To fix the bug, you may change the if condition
if (this.yy.parser)at line 1988 of handlebars.jsto if (this.yy && this.yy.parser).The text was updated successfully, but these errors were encountered: