Package jadx.core.dex.nodes.utils

Class TypeUtils

java.lang.Object

jadx.core.dex.nodes.utils.TypeUtils

public class TypeUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private final RootNode	root

Constructor Summary

Constructors

Constructor	Description
TypeUtils(RootNode rootNode)

Method Summary

Modifier and Type	Method	Description
private static void	addTypeVarMapping(Map<ArgType,ArgType> map, ArgType typeVar, InsnArg arg)
private ClassTypeVarsAttr	buildClassTypeVarsAttr(ClassNode cls)
@Nullable ArgType	checkForUnknownTypeVars(MethodNode mth, ArgType checkType)	Search for unknown type vars at current method.
private static Set<ArgType>	collectKnownTypeVarsAtMethod(MethodNode mth)
boolean	containsUnknownTypeVar(MethodNode mth, ArgType type)
private void	expandTypeVar(NotificationAttrNode node, ArgType type, Collection<ArgType> typeVars)
ArgType	expandTypeVariables(ClassNode cls, ArgType type)
ArgType	expandTypeVariables(MethodNode mth, ArgType type)
List<ArgType>	getClassGenerics(ArgType type)
@Nullable ClassTypeVarsAttr	getClassTypeVars(ArgType type)
private static Collection<ArgType>	getKnownTypeVarsAtClass(ClassNode cls)
Set<ArgType>	getKnownTypeVarsAtMethod(MethodNode mth)
Map<ArgType,ArgType>	getTypeVariablesMapping(ArgType clsType)
Map<ArgType,ArgType>	getTypeVarMappingForInvoke(BaseInvokeNode invokeInsn)
private static Map<ArgType,ArgType>	mergeTypeMaps(Map<ArgType,ArgType> base, Map<ArgType,ArgType> addition)
@Nullable ArgType	replaceClassGenerics(ArgType instanceType, ArgType typeWithGeneric)	Replace generic types in typeWithGeneric using instance types Example: instanceType: Set<String> typeWithGeneric: Iterator<E> return: Iterator<String>
@Nullable ArgType	replaceClassGenerics(ArgType instanceType, ArgType genericSourceType, ArgType typeWithGeneric)
@Nullable ArgType	replaceMethodGenerics(BaseInvokeNode invokeInsn, IMethodDetails details, ArgType typeWithGeneric)
@Nullable ArgType	replaceTypeVariablesUsingMap(ArgType replaceType, Map<ArgType,ArgType> replaceMap)
void	visitSuperTypes(ArgType type, BiConsumer<ArgType,ArgType> consumer)

Methods inherited from class java.lang.Object

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

Field Details

root

private final RootNode root

Constructor Details

TypeUtils

public TypeUtils(RootNode rootNode)

Method Details

getClassGenerics

public List<ArgType> getClassGenerics(ArgType type)

getClassTypeVars

@Nullable
public @Nullable ClassTypeVarsAttr getClassTypeVars(ArgType type)

expandTypeVariables

public ArgType expandTypeVariables(ClassNode cls,
 ArgType type)

expandTypeVariables

public ArgType expandTypeVariables(MethodNode mth,
 ArgType type)

expandTypeVar

private void expandTypeVar(NotificationAttrNode node,
 ArgType type,
 Collection<ArgType> typeVars)

getKnownTypeVarsAtMethod

public Set<ArgType> getKnownTypeVarsAtMethod(MethodNode mth)

getKnownTypeVarsAtClass

private static Collection<ArgType> getKnownTypeVarsAtClass(ClassNode cls)

collectKnownTypeVarsAtMethod

private static Set<ArgType> collectKnownTypeVarsAtMethod(MethodNode mth)

checkForUnknownTypeVars

@Nullable
public @Nullable ArgType checkForUnknownTypeVars(MethodNode mth,
 ArgType checkType)

Search for unknown type vars at current method. Return only first.

Returns:

unknown type var, null if not found

containsUnknownTypeVar

public boolean containsUnknownTypeVar(MethodNode mth,
 ArgType type)

replaceClassGenerics

@Nullable
public @Nullable ArgType replaceClassGenerics(ArgType instanceType,
 ArgType typeWithGeneric)

Replace generic types in typeWithGeneric using instance types
Example:

• instanceType: Set<String>
• typeWithGeneric: Iterator<E>
• return: Iterator<String>

replaceClassGenerics

@Nullable
public @Nullable ArgType replaceClassGenerics(ArgType instanceType,
 ArgType genericSourceType,
 ArgType typeWithGeneric)

mergeTypeMaps

private static Map<ArgType,ArgType> mergeTypeMaps(Map<ArgType,ArgType> base,
 Map<ArgType,ArgType> addition)

getTypeVariablesMapping

public Map<ArgType,ArgType> getTypeVariablesMapping(ArgType clsType)

getTypeVarMappingForInvoke

public Map<ArgType,ArgType> getTypeVarMappingForInvoke(BaseInvokeNode invokeInsn)

addTypeVarMapping

private static void addTypeVarMapping(Map<ArgType,ArgType> map,
 ArgType typeVar,
 InsnArg arg)

replaceMethodGenerics

@Nullable
public @Nullable ArgType replaceMethodGenerics(BaseInvokeNode invokeInsn,
 IMethodDetails details,
 ArgType typeWithGeneric)

replaceTypeVariablesUsingMap

@Nullable
public @Nullable ArgType replaceTypeVariablesUsingMap(ArgType replaceType,
 Map<ArgType,ArgType> replaceMap)

buildClassTypeVarsAttr

private ClassTypeVarsAttr buildClassTypeVarsAttr(ClassNode cls)

visitSuperTypes

public void visitSuperTypes(ArgType type,
 BiConsumer<ArgType,ArgType> consumer)