Struct GradleParser 

pub struct GradleParser;

Parses Gradle build files (build.gradle, build.gradle.kts).

Extracts dependencies from Gradle build scripts using a custom token-based lexer and recursive descent parser. Supports both Groovy and Kotlin DSL syntax.

Supported Patterns

• String notation: implementation 'group:name:version'
• Named parameters: implementation group: 'x', name: 'y', version: 'z'
• Map format: implementation([group: 'x', name: 'y'])
• Nested functions: implementation(enforcedPlatform("..."))
• Project references: implementation(project(":module"))
• String interpolation: implementation("group:name:${version}")

Implementation

Uses a custom token-based lexer (870 lines) instead of tree-sitter for:

• Lighter binary size (no external parser dependencies)
• Easier maintenance for DSL-specific quirks
• Better error messages for malformed input

Typical usage is calling GradleParser::extract_first_package() on a build.gradle or build.gradle.kts file and then inspecting the returned dependency list.

Trait Implementations

impl PackageParser for GradleParser

const PACKAGE_TYPE: PackageType = PackageType::Maven

Package URL type identifier for this parser (e.g., PackageType::Npm, PackageType::Pypi).

fn metadata() -> Vec<ParserMetadata>

Returns documentation metadata for the file-format surfaces this parser handles.

fn is_match(path: &Path) -> bool

Checks if the given file path matches this parser’s expected format.

fn extract_packages(path: &Path) -> Vec<PackageData>

Extracts all packages from the given file path.

fn extract_first_package(path: &Path) -> PackageData

Returns the first package from extract_packages(), or a default PackageData if the file contains no packages.