@NotNull
@Override
public PsiField createField(@NotNull final String name, @NotNull final PsiType type)
throws IncorrectOperationException {
PsiUtil.checkIsIdentifier(myManager, name);
if (PsiType.NULL.equals(type)) {
throw new IncorrectOperationException("Cannot create field with type \"null\".");
}
@NonNls
final String text = "class _Dummy_ { private " + type.getCanonicalText() + " " + name + "; }";
final PsiJavaFile aFile = createDummyJavaFile(text);
final PsiClass[] classes = aFile.getClasses();
if (classes.length < 1) {
throw new IncorrectOperationException("Class was not created " + text);
}
final PsiClass psiClass = classes[0];
final PsiField[] fields = psiClass.getFields();
if (fields.length < 1) {
throw new IncorrectOperationException("Field was not created " + text);
}
PsiField field = fields[0];
field =
(PsiField)
JavaCodeStyleManager.getInstance(myManager.getProject()).shortenClassReferences(field);
return (PsiField) CodeStyleManager.getInstance(myManager.getProject()).reformat(field);
}
private PsiClass createArrayClass(String text, LanguageLevel level) {
PsiClass psiClass =
((PsiExtensibleClass) createClassFromText(text, null)).getOwnInnerClasses().get(0);
ensureNonWritable(psiClass);
PsiFile file = psiClass.getContainingFile();
((PsiJavaFileBaseImpl) file).clearCaches();
PsiUtil.FILE_LANGUAGE_LEVEL_KEY.set(file, level);
return psiClass;
}
@NotNull
@Override
public PsiClassType getArrayClassType(
@NotNull final PsiType componentType, @NotNull final LanguageLevel languageLevel) {
final PsiClass arrayClass = getArrayClass(languageLevel);
final PsiTypeParameter[] typeParameters = arrayClass.getTypeParameters();
PsiSubstitutor substitutor = PsiSubstitutor.EMPTY;
if (typeParameters.length == 1) {
substitutor = substitutor.put(typeParameters[0], componentType);
}
return createType(arrayClass, substitutor);
}
@NotNull
@Override
public PsiImportStatement createImportStatement(@NotNull final PsiClass aClass)
throws IncorrectOperationException {
if (aClass instanceof PsiAnonymousClass) {
throw new IncorrectOperationException("Cannot create import statement for anonymous class.");
} else if (aClass.getParent() instanceof PsiDeclarationStatement) {
throw new IncorrectOperationException("Cannot create import statement for local class.");
}
final PsiJavaFile aFile = createDummyJavaFile("import " + aClass.getQualifiedName() + ";");
final PsiImportStatementBase statement = extractImport(aFile, false);
return (PsiImportStatement)
CodeStyleManager.getInstance(myManager.getProject()).reformat(statement);
}
@NotNull
@Override
public PsiClassType createType(@NotNull final PsiClass aClass, final PsiType parameter) {
final PsiTypeParameter[] typeParameters = aClass.getTypeParameters();
assert typeParameters.length == 1 : aClass;
return createType(aClass, PsiSubstitutor.EMPTY.put(typeParameters[0], parameter));
}
@NotNull
@Override
public PsiJavaCodeReferenceElement createClassReferenceElement(@NotNull final PsiClass aClass) {
final String text;
if (aClass instanceof PsiAnonymousClass) {
text = ((PsiAnonymousClass) aClass).getBaseClassType().getPresentableText();
} else {
text = aClass.getName();
}
return new LightClassReference(myManager, text, aClass);
}
@NotNull
@Override
public PsiReferenceExpression createReferenceExpression(@NotNull final PsiClass aClass)
throws IncorrectOperationException {
final String text;
if (aClass instanceof PsiAnonymousClass) {
text = ((PsiAnonymousClass) aClass).getBaseClassType().getPresentableText();
} else {
text = aClass.getName();
}
return new LightClassReferenceExpression(myManager, text, aClass);
}
@NotNull
@Override
public PsiJavaCodeReferenceElement createClassReferenceElement(@NotNull final PsiClass aClass) {
final String text;
if (aClass instanceof PsiAnonymousClass) {
text = ((PsiAnonymousClass) aClass).getBaseClassType().getPresentableText();
} else {
text = aClass.getName();
}
if (text == null) {
throw new IncorrectOperationException("Invalid class: " + aClass);
}
return new LightClassReference(myManager, text, aClass);
}
private static void ensureNonWritable(PsiClass arrayClass) {
try {
arrayClass.getContainingFile().getViewProvider().getVirtualFile().setWritable(false);
} catch (IOException ignored) {
}
}
