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::ConsumerQuery;

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_consumer_scan;

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

AngularComponentFieldArrayTypeFact

A typed Angular component field that exposes array elements to templates.

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.

FactoryFnWholeObjectFact

A factory-returned value consumed opaquely, so every member of the class it returns must be treated as used.

FactoryReturnExport

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

FactoryReturnObjectPropertyAccessFact

A member access reached through a property of a value returned by an imported factory that returns an object literal.

FactoryReturnObjectShapeExport

An exported factory function that returns an object literal whose property values are class instances, joined to its public export name.

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.

SourceReadFailure

A discovered source that could not be read as UTF-8 text.

TypeMemberTypeEntry

A named-type property whose declared type is a named type reference.

TypedPropertyMemberAccessFact

A member access reached through a typed property hop that the extraction layer could not resolve locally.

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, extracting imports and exports.

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.