Crate js_source_scopes

JS Source Scopes

This crate provides functionality for extracting and processing scope information from JavaScript source files, and resolving that scope via SourceMaps.

Features

• Extracting scopes from source text using extract_scope_names
• Fast lookup of scopes by byte offset using ScopeIndex
• Fast conversion between line/column source positions and byte offsets using SourceContext
• Resolution of minified scope names to their original names using NameResolver

License

JS Source Scopes is licensed under the Apache-2.0 license.

Structs

NameComponent

An individual component of a ScopeName.

NameResolver

A structure for resolving ScopeNames in minified code to their original names using information contained in a DecodedMap.

ParseError

An error parsing the JS Source provided to extract_scope_names.

ScopeIndex

An indexed structure of scopes that allows quick lookup by byte offset.

ScopeIndexError

An Error that can happen when building a ScopeIndex.

ScopeName

An abstract scope name which can consist of multiple NameComponents.

SourceContext

A structure allowing fast line/column <-> byte offset remapping.

SourceContextError

An Error that can happen when building a SourceContext.

SourcePosition

A line/column source position.

Enums

ScopeLookupResult

The Result of a Scope lookup.

Functions

extract_scope_names

Extracts function scopes from the given JS-like src.

Type Definitions

Scopes

The Scopes extracted from a piece of JS Code.