Package org.openrewrite.java.internal

Class TypesInUse

java.lang.Object

org.openrewrite.java.internal.TypesInUse

public class TypesInUse
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TypesInUse.FindTypesInUse

Constructor Summary

Constructors

Constructor	Description
TypesInUse()

Method Summary

Modifier and Type	Method	Description
static TypesInUse	build(JavaSourceFile cu)
boolean	declaresMethod(MethodMatcher matcher)	Whether this compilation unit declares any method matching matcher.
boolean	hasMethodUse(MethodMatcher matcher)	Whether this compilation unit invokes any method matching matcher.
boolean	hasType(String fullyQualifiedType, boolean includeImplicit)	Whether any type referenced in this compilation unit is assignable to fullyQualifiedType.
boolean	hasTypeInPackage(String packageName, boolean includeImplicit)	Whether this compilation unit references any type whose package equals packageName exactly (i.e., the com.foo.* pattern).
boolean	hasTypeInPackageOrSubpackage(String packageName, boolean includeImplicit)	Whether this compilation unit references any type whose package equals packageName or starts with packageName + '.' (i.e., the com.foo..* pattern).
boolean	hasTypeMatching(TypeNameMatcher matcher, boolean includeImplicit)	Whether any FQN reachable through the assignability closure of this compilation unit matches matcher.
static TypesInUse	of(JavaSourceFile cu, Set<JavaType> typesInUse, Set<JavaType.Method> declaredMethods, Set<JavaType.Method> usedMethods, Set<JavaType.Variable> variables)	Constructs a TypesInUse directly from pre-built sets, skipping the full LST walk performed by build(JavaSourceFile).

Methods inherited from class java.lang.Object

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

Constructor Details

TypesInUse

public TypesInUse()

Method Details

build

public static TypesInUse build(JavaSourceFile cu)

of

public static TypesInUse of(JavaSourceFile cu,
 Set<JavaType> typesInUse,
 Set<JavaType.Method> declaredMethods,
 Set<JavaType.Method> usedMethods,
 Set<JavaType.Variable> variables)

Constructs a TypesInUse directly from pre-built sets, skipping the full LST walk performed by build(JavaSourceFile). Intended for callers that can source the same information from outside the tree (e.g. a serialized index).

hasType

public boolean hasType(String fullyQualifiedType,
 boolean includeImplicit)

Whether any type referenced in this compilation unit is assignable to fullyQualifiedType. Mirrors the loop in UsesType.visit: types-in-use, imports, and (when includeImplicit) the declaring/return/parameter types of used methods.

The first call materializes the closure for the file and caches it; subsequent calls are O(1). $ and . are treated as equivalent in inner-class FQNs, matching TypeUtils.fullyQualifiedNamesAreEqual(String, String).

hasTypeInPackage

public boolean hasTypeInPackage(String packageName,
 boolean includeImplicit)

Whether this compilation unit references any type whose package equals packageName exactly (i.e., the com.foo.* pattern). Navigation to the package node is O(depth); matching is a constant-time check for any real-leaf child (alias children are deliberately ignored, so com.foo.Outer.Inner from a canonicalized inner-class FQN does not register com.foo.Outer as a package).

hasTypeInPackageOrSubpackage

public boolean hasTypeInPackageOrSubpackage(String packageName,
 boolean includeImplicit)

Whether this compilation unit references any type whose package equals packageName or starts with packageName + '.' (i.e., the com.foo..* pattern). The descendant-leaf rollup tracks only real leaves, so the answer is O(depth) regardless of trie size.

hasTypeMatching

public boolean hasTypeMatching(TypeNameMatcher matcher,
 boolean includeImplicit)

Whether any FQN reachable through the assignability closure of this compilation unit matches matcher. Walks every raw-leaf path in the trie and tests the matcher against the reconstructed FQN — equivalent to the per-element loop in UsesType's pre-cache implementation, but iterated once per (file, matcher) pair regardless of how many recipe instances ask. Alias paths are excluded so canonical inner-class FQNs only match through their raw form, mirroring the semantics of hasTypeInPackage(java.lang.String, boolean).

hasMethodUse

public boolean hasMethodUse(MethodMatcher matcher)

Whether this compilation unit invokes any method matching matcher.

declaresMethod

public boolean declaresMethod(MethodMatcher matcher)

Whether this compilation unit declares any method matching matcher.