Crate fallow_extract 

Parsing and extraction engine for fallow codebase intelligence.

This crate handles all file parsing: JS/TS via Oxc, Vue/Svelte SFC extraction, Astro frontmatter, MDX import/export extraction, CSS Module class name extraction, HTML asset reference extraction, and incremental caching of parse results.

Re-exports

pub use astro::extract_astro_frontmatter;

pub use astro::extract_astro_style_regions;

pub use astro::extract_astro_template_regions;

pub use css::ThemeScan;

pub use css::ThemeTokenDef;

pub use css::extract_apply_tokens;

pub use css::extract_apply_tokens_located;

pub use css::extract_css_module_exports;

pub use css::extract_css_var_reads_located;

pub use css::scan_theme_blocks;

pub use css_classes::MarkupClassScan;

pub use css_classes::MarkupClassToken;

pub use css_classes::is_edit_distance_one;

pub use css_classes::is_typo_edit;

pub use css_classes::scan_markup_class_tokens;

pub use css_in_js::CssInJsObjectSheets;

pub use css_in_js::CssInJsToken;

pub use css_in_js::CssInJsTokenDef;

pub use css_in_js::CssInJsTokenOrigin;

pub use css_in_js::TokenConsumerHit;

pub use css_in_js::css_in_js_object_sheets;

pub use css_in_js::css_in_js_theme_consumers;

pub use css_in_js::css_in_js_theme_token_defs;

pub use css_in_js::css_in_js_token_consumers;

pub use css_in_js::css_in_js_token_defs;

pub use css_in_js::css_in_js_virtual_stylesheet;

pub use css_in_js::panda_style_value_consumers;

pub use css_in_js::panda_token_call_consumers;

pub use css_metrics::compute_css_analytics;

pub use css_metrics::parse_css_color_rgb;

pub use glimmer::is_glimmer_file;

pub use glimmer::strip_glimmer_templates;

pub use mdx::extract_mdx_statements;

pub use sfc::SourceRegion;

pub use sfc::extract_sfc_scripts;

pub use sfc::extract_sfc_styles;

pub use sfc::extract_sfc_template_regions;

pub use sfc::is_sfc_file;

pub use sfc_css::scoped_unused_classes;

pub use sfc_css::sfc_preprocessor_virtual_stylesheet;

pub use sfc_css::sfc_virtual_stylesheet;

pub use tailwind::TailwindArbitraryUse;

pub use tailwind::scan_tailwind_arbitrary_values;

Modules

astro

Astro component frontmatter extraction.

cache

Incremental parse cache with bitcode serialization.

css

CSS/SCSS file parsing and CSS Module class name extraction.

css_classes

Markup CSS-class reference scanning and class-name similarity.

css_in_js

CSS-in-JS analytics front-ends (CSS program Phases 3b / 3c / 3d).

css_metrics

Structural CSS analytics computed from the parsed CSS syntax tree.

flags

Feature flag detection via lightweight Oxc AST visitor.

glimmer

Helpers for Glimmer component files (.gts / .gjs).

graphql

GraphQL document parsing.

html

HTML file parsing for script, stylesheet, and Angular template references.

iconify

Static Iconify icon-string extraction (issue #608).

inventory

Function inventory walker for fallow coverage upload-inventory.

mdx

MDX import/export statement extraction.

sfc

Vue/Svelte Single File Component (SFC) script and style extraction.

sfc_css

Dead scoped-CSS class detection for Vue/Svelte single-file components.

suppress

Inline suppression comment parsing.

tailwind

Tailwind CSS arbitrary-value detection. Tailwind CSS arbitrary-value detection.

visitor

Visitor utilities for AST extraction.

Structs

AngularTemplateMemberAccessFact

A member name referenced from an Angular template surface.

AngularThisSpreadFact

Opaque Angular { ...this } forwarding marker.

ClassHeritageInfo

Additional heritage metadata for an exported class.

DynamicCustomElementRenderFact

Opaque marker for a dynamic custom-element render site.

DynamicImportInfo

A dynamic import() call.

DynamicImportPattern

A dynamic import with a partially resolved pattern.

ExportInfo

An export declaration.

FactoryCallMemberAccessFact

A member access on a static factory call result.

FactoryFnMemberAccessFact

A member access on a value returned by an imported free-function factory.

FactoryReturnExport

An exported free-function factory proven to return one class instance.

FluentChainMemberAccessFact

A member access on a fluent chain rooted at a static factory call.

FluentChainNewMemberAccessFact

A member access on a fluent chain rooted at a new expression.

ImportInfo

An import declaration.

InstanceExportBindingFact

An exported value whose runtime instance targets a local class or interface.

LocalTypeDeclaration

A module-scope declaration that can be used as a TypeScript type.

MemberAccess

A static member access expression (e.g., Status.Active, MyClass.create()).

MemberInfo

A member of an enum, class, or namespace.

ModuleInfo

Extracted module information from a single file.

ParseResult

Result of parsing all files, including incremental cache statistics.

PlaywrightFixtureAliasFact

A Playwright fixture wrapper alias declared by mergeTests or .extend.

PlaywrightFixtureDefinitionFact

A Playwright fixture definition declared by a typed test.extend<T>().

PlaywrightFixtureTypeFact

A nested Playwright fixture binding declared by a fixture type alias.

PlaywrightFixtureUseFact

A member access on a Playwright fixture object inside a test callback.

PublicSignatureTypeReference

A reference from an exported symbol’s public signature to a type name.

ReExportInfo

A re-export declaration.

RequireCallInfo

A require() call.

Enums

ExportName

Export identifier.

ImportedName

How a symbol is imported.

MemberKind

The kind of member.

SemanticFact

A typed extraction fact for cross-layer analysis.

VisibilityTag

Visibility tag from JSDoc/TSDoc comments that suppresses unused-export detection.

Functions

compute_line_offsets

Compute a table of line-start byte offsets from source text.

parse_all_files

Parse all files in parallel, extracting imports and exports. Uses the cache to skip reparsing files whose content hasn’t changed.

parse_from_content

Parse from in-memory content (for LSP, includes complexity).

parse_single_file

Parse a single file and extract module information (without complexity).

parse_source_to_module

Parse source text into a ModuleInfo.