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82 lines
5.5 KiB
Markdown
82 lines
5.5 KiB
Markdown
---
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layout: developer-doc
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title: Parser Architecture Overview
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category: parser
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tags: [parser, architecture]
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order: 2
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---
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# Parser Architecture Overview
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The Enso parser is designed in a highly modular fashion, with separate crates
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responsible for the component's various responsibilities. The overall
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architecture for the parser is described in this document.
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<!-- MarkdownTOC levels="2,3" autolink="true" -->
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- [Overall Architecture](#overall-architecture)
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<!-- /MarkdownTOC -->
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## Overall Architecture
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The overall architecture of the parser subsystem can be visualised as follows.
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```
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┌───────────────┐
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│ Source Code │
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└───────────────┘
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│
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│
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▽
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┌─────────────────────────────────────────────────────────────────────────┐
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│ ┌──────────────┐ Parser │
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│ │ UTF-X Reader │ │
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│ └──────────────┘ │
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│ │ │
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│ │ Character │
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│ │ Stream │
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│ ▽ │
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│ ┌────────┐ │
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│ │ Lexer │ │
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│ │┌──────┐│ │
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│ ││Flexer││ │
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│ │└──────┘│ │
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│ └────────┘ │
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│ │ │
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│ │ Structured │
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│ │ Token Stream │
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│ ▽ │
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│ ┌────────────┐ ┌────────────┐ ┌────────────┐ │
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│ │ │ │ │ │ │ │
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│ │ Macro │ Rust AST │ Operator │ Rust AST │ Construct │ │
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│ │ Resolution │─────────────▷│ Resolution │─────────────▷│ Resolution │ │
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│ │ │ │ │ │ │ │
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│ └────────────┘ └────────────┘ └────────────┘ │
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│ │ │
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│ Rust AST │ │
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│ ▽ │
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│ ┌────────────┐ │
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│ │ AST Output │ │
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│ └────────────┘ │
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└─────────────────────────────────────────────────────────────────────────┘
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│
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┌───────────────┤ Rust AST
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▽ │
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┌────────────┐ │
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│ │ │
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│ JVM Object │ └─────────────────┐
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│ Generator │ │
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│ │ │
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└────────────┘ │
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│ │
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JVM AST │ │
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▽ ▽
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┌────────────┐ ┌────────────┐
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│ │ │ │
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│ Use in JVM │ │ Direct Use │
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│ Code │ │in Rust Code│
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│ │ │ │
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└────────────┘ └────────────┘
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```
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