Package org.codehaus.groovy.control

Class ModuleImportHelper

java.lang.Object

org.codehaus.groovy.control.ModuleImportHelper

public final class ModuleImportHelper
extends Object

Shared utilities for expanding JPMS module imports into package-level star imports. Used by both the parser (AstBuilder) and the ImportCustomizer.

Since:

6.0.0

Method Summary

Modifier and Type	Method	Description
static void	collectModuleExports(ModuleReference moduleRef, ModuleFinder finder, List<String> packageNames, Set<String> visited)	Collects the exported package names from the given module and, recursively, from any modules it requires transitive.
static ModuleFinder	moduleFinder(SourceUnit source)	Builds a ModuleFinder that combines the system module finder with one scanning the compilation classpath for modular JARs.
static List<String>	resolveModulePackages(String moduleName, ModuleFinder finder)	Resolves a module by name and collects its exported packages (including transitive dependencies).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

moduleFinder

public static ModuleFinder moduleFinder(SourceUnit source)

Builds a ModuleFinder that combines the system module finder with one scanning the compilation classpath for modular JARs.

Parameters:

source - the source unit providing classpath and classloader

Returns:

a composite module finder

collectModuleExports

public static void collectModuleExports(ModuleReference moduleRef,
 ModuleFinder finder,
 List<String> packageNames,
 Set<String> visited)

Collects the exported package names from the given module and, recursively, from any modules it requires transitive. This implements the transitive readability semantics specified by JEP 476.

Parameters:

moduleRef - the module to inspect

finder - the finder used to resolve transitive dependencies

packageNames - accumulator for discovered package names

visited - set of already-visited module names (to avoid cycles)

resolveModulePackages

public static List<String> resolveModulePackages(String moduleName,
 ModuleFinder finder)

Resolves a module by name and collects its exported packages (including transitive dependencies).

Parameters:

moduleName - the JPMS module name

finder - the module finder to use

Returns:

the list of exported package names

Throws:

IllegalArgumentException - if the module is not found