mirror of
https://github.com/enso-org/enso.git
synced 2024-12-26 04:24:28 +03:00
42 lines
1.2 KiB
Markdown
42 lines
1.2 KiB
Markdown
---
|
|
layout: developer-doc
|
|
title: Construct Resolution
|
|
category: parser
|
|
tags: [parser, construct, resolution]
|
|
order: 6
|
|
---
|
|
|
|
# Construct Resolution
|
|
|
|
Construct resolution is the process of turning the low-level AST format into the
|
|
full high-level AST format that represents both all of Enso's language
|
|
constructs and contains rich error nodes.
|
|
|
|
<!-- MarkdownTOC levels="2,3" autolink="true" -->
|
|
|
|
- [Syntax Errors](#syntax-errors)
|
|
|
|
<!-- /MarkdownTOC -->
|
|
|
|
> The actionables for this section are:
|
|
>
|
|
> - Produce a detailed design for this resolution functionality, accounting for
|
|
> all known current use cases.
|
|
|
|
## Syntax Errors
|
|
|
|
It is very important that Enso is able to provide descriptive and useful syntax
|
|
errors to its users. Doing so requires that it has a full understanding of the
|
|
language's syntax, but also that it is designed in such a fashion that it will
|
|
always succeed, regardless of any errors. Errors must be:
|
|
|
|
- Highly descriptive, so that it is easy for the runtime to explain to the user
|
|
what went wrong.
|
|
- Highly localised, so that the scope of the error has as minimal an impact on
|
|
parsing as possible.
|
|
|
|
> The actionables for this section are:
|
|
>
|
|
> - Determine how to design this parsing phase to obtain very accurate syntax
|
|
> errors.
|