2020-06-25 15:06:08 +03:00
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---
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layout: developer-doc
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title: Construct Resolution
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category: parser
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tags: [parser, construct, resolution]
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2020-06-26 16:54:20 +03:00
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order: 7
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2020-06-25 15:06:08 +03:00
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---
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# Construct Resolution
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2020-07-21 15:59:40 +03:00
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2020-06-26 16:54:20 +03:00
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Construct resolution is the process of turning the low-level AST format into the
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full high-level AST format that represents both all of Enso's language
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constructs and contains rich error nodes.
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2020-06-25 15:06:08 +03:00
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<!-- MarkdownTOC levels="2,3" autolink="true" -->
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2020-06-26 16:54:20 +03:00
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- [Syntax Errors](#syntax-errors)
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2020-06-25 15:06:08 +03:00
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<!-- /MarkdownTOC -->
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2020-06-26 16:54:20 +03:00
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> The actionables for this section are:
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>
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> - Produce a detailed design for this resolution functionality, accounting for
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> all known current use cases.
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## Syntax Errors
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2020-07-21 15:59:40 +03:00
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2020-06-26 16:54:20 +03:00
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It is very important that Enso is able to provide descriptive and useful syntax
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errors to its users. Doing so requires that it has a full understanding of the
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language's syntax, but also that it is designed in such a fashion that it will
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always succeed, regardless of any errors. Errors must be:
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- Highly descriptive, so that it is easy for the runtime to explain to the user
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what went wrong.
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- Highly localised, so that the scope of the error has as minimal an impact on
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parsing as possible.
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> The actionables for this section are:
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>
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> - Determine how to design this parsing phase to obtain very accurate syntax
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> errors.
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