Parser Error Handling - Githubissues

roscopeco / deelang

A lightweight dynamic scripting language for Android

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Open roscopeco opened 11 years ago

roscopeco commented 11 years ago

The error handling in the parser currently leaves a great deal to be desired. Specifically, we need:

Proper 'syntax error' etc. messages: currently it's easy to get a cryptic NoViableAltException from Antlr.
Tracking / reporting of code location
Suggestions on missing tokens, etc (as far as possible).