@NotNull
private File fileToFile(PsiJavaFile javaFile, List<String> additionalImports) {
PsiImportList importList = javaFile.getImportList();
List<Import> imports =
importList == null
? Collections.<Import>emptyList()
: importsToImportList(importList.getAllImportStatements());
for (String i : additionalImports) imports.add(new Import(i));
return new File(
quoteKeywords(javaFile.getPackageName()),
imports,
classesToClassList(javaFile.getClasses()),
createMainFunction(javaFile));
}
@NotNull
public List<String> createConversions(
@NotNull PsiPolyadicExpression expression, PsiType expectedType) {
PsiExpression[] arguments = expression.getOperands();
int length = arguments.length;
List<String> conversions = new LinkedList<String>();
List<PsiType> expectedTypes = Collections.nCopies(length, expectedType);
List<PsiType> actualTypes = new LinkedList<PsiType>();
for (PsiExpression e : arguments) actualTypes.add(e.getType());
assert actualTypes.size() == expectedTypes.size() : "The type list must have the same length";
for (int i = 0; i < actualTypes.size(); i++)
conversions.add(i, createConversionForExpression(arguments[i], expectedTypes.get(i)));
return conversions;
}
@NotNull
public Set<String> getClassIdentifiers() {
return Collections.unmodifiableSet(classIdentifiers);
}
@NotNull
public Class classToClass(@NotNull PsiClass psiClass) {
Set<String> modifiers = modifiersListToModifiersSet(psiClass.getModifierList());
List<Field> fields = fieldsToFieldList(psiClass.getFields(), psiClass);
List<Element> typeParameters = elementsToElementList(psiClass.getTypeParameters());
List<Type> implementsTypes = typesToNotNullableTypeList(psiClass.getImplementsListTypes());
List<Type> extendsTypes = typesToNotNullableTypeList(psiClass.getExtendsListTypes());
IdentifierImpl name = new IdentifierImpl(psiClass.getName());
List<Expression> baseClassParams = new LinkedList<Expression>();
List<Member> members = getMembers(psiClass);
// we try to find super() call and generate class declaration like that: class A(name: String, i
// : Int) : Base(name)
SuperVisitor visitor = new SuperVisitor();
psiClass.accept(visitor);
Collection<PsiExpressionList> resolvedSuperCallParameters =
visitor.getResolvedSuperCallParameters();
if (resolvedSuperCallParameters.size() == 1) {
baseClassParams.addAll(
expressionsToExpressionList(
resolvedSuperCallParameters.toArray(new PsiExpressionList[1])[0].getExpressions()));
}
// we create primary constructor from all non final fields and fields without initializers
if (!psiClass.isEnum()
&& !psiClass.isInterface()
&& psiClass.getConstructors().length > 1
&& getPrimaryConstructorForThisCase(psiClass) == null) {
List<Field> finalOrWithEmptyInitializer = getFinalOrWithEmptyInitializer(fields);
Map<String, String> initializers = new HashMap<String, String>();
for (Member m : members) {
// and modify secondaries
if (m.getKind() == INode.Kind.CONSTRUCTOR) {
Function f = (Function) m;
if (!((Constructor) f).isPrimary()) {
for (Field fo : finalOrWithEmptyInitializer) {
String init = getDefaultInitializer(fo);
initializers.put(fo.getIdentifier().toKotlin(), init);
}
List<Statement> newStatements = new LinkedList<Statement>();
for (Statement s : f.getBlock().getStatements()) {
boolean isRemoved = false;
if (s.getKind() == INode.Kind.ASSIGNMENT_EXPRESSION) {
AssignmentExpression assignmentExpression = (AssignmentExpression) s;
if (assignmentExpression.getLeft().getKind() == INode.Kind.CALL_CHAIN) {
for (Field fo : finalOrWithEmptyInitializer) {
String id = fo.getIdentifier().toKotlin();
if (((CallChainExpression) assignmentExpression.getLeft())
.getIdentifier()
.toKotlin()
.endsWith("." + id)) {
initializers.put(id, assignmentExpression.getRight().toKotlin());
isRemoved = true;
}
}
}
}
if (!isRemoved) {
newStatements.add(s);
}
}
newStatements.add(
0,
new DummyStringExpression(
"val __ = "
+ createPrimaryConstructorInvocation(
name.toKotlin(), finalOrWithEmptyInitializer, initializers)));
f.setBlock(new Block(newStatements));
}
}
}
members.add(
new Constructor(
Identifier.EMPTY_IDENTIFIER,
Collections.<String>emptySet(),
new ClassType(name),
Collections.<Element>emptyList(),
new ParameterList(createParametersFromFields(finalOrWithEmptyInitializer)),
new Block(createInitStatementsFromFields(finalOrWithEmptyInitializer)),
true));
}
if (psiClass.isInterface()) {
return new Trait(
this,
name,
modifiers,
typeParameters,
extendsTypes,
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
if (psiClass.isEnum()) {
return new Enum(
this,
name,
modifiers,
typeParameters,
Collections.<Type>emptyList(),
Collections.<Expression>emptyList(),
implementsTypes,
members);
}
return new Class(
this,
name,
modifiers,
typeParameters,
extendsTypes,
baseClassParams,
implementsTypes,
members);
}
@NotNull
public File fileToFileWithCompatibilityImport(@NotNull PsiJavaFile javaFile) {
return fileToFile(javaFile, Collections.singletonList("kotlin.compatibility.*"));
}
@NotNull
public File fileToFile(@NotNull PsiJavaFile javaFile) {
return fileToFile(javaFile, Collections.<String>emptyList());
}