@Override
public void visitReferenceExpression(final PsiReferenceExpression reference) {
if (myLineRange.intersects(reference.getTextRange())) {
final PsiElement psiElement = reference.resolve();
if (psiElement instanceof PsiVariable) {
final PsiVariable var = (PsiVariable) psiElement;
if (var instanceof PsiField) {
if (myCollectExpressions
&& !DebuggerUtils.hasSideEffectsOrReferencesMissingVars(
reference, myVisibleLocals)) {
/*
if (var instanceof PsiEnumConstant && reference.getQualifier() == null) {
final PsiClass enumClass = ((PsiEnumConstant)var).getContainingClass();
if (enumClass != null) {
final PsiExpression expression = JavaPsiFacade.getInstance(var.getProject()).getParserFacade().createExpressionFromText(enumClass.getName() + "." + var.getName(), var);
final PsiReference ref = expression.getReference();
if (ref != null) {
ref.bindToElement(var);
myExpressions.add(new TextWithImportsImpl(expression));
}
}
}
else {
myExpressions.add(new TextWithImportsImpl(reference));
}
*/
final PsiModifierList modifierList = var.getModifierList();
boolean isConstant =
(var instanceof PsiEnumConstant)
|| (modifierList != null
&& modifierList.hasModifierProperty(PsiModifier.STATIC)
&& modifierList.hasModifierProperty(PsiModifier.FINAL));
if (!isConstant) {
myExpressions.add(new TextWithImportsImpl(reference));
}
}
} else {
if (myVisibleLocals.contains(var.getName())) {
myVars.add(var.getName());
} else {
// fix for variables used in inner classes
if (!Comparing.equal(
PsiTreeUtil.getParentOfType(reference, PsiClass.class),
PsiTreeUtil.getParentOfType(var, PsiClass.class))) {
myExpressions.add(new TextWithImportsImpl(reference));
}
}
}
}
}
super.visitReferenceExpression(reference);
}
private static void checkSillyAssignment(
PsiAssignmentExpression assignment, ProblemsHolder holder) {
if (assignment.getOperationTokenType() != JavaTokenType.EQ) return;
PsiExpression lExpression = assignment.getLExpression();
PsiExpression rExpression = assignment.getRExpression();
if (rExpression == null) return;
lExpression = PsiUtil.deparenthesizeExpression(lExpression);
rExpression = PsiUtil.deparenthesizeExpression(rExpression);
if (!(lExpression instanceof PsiReferenceExpression)) return;
PsiReferenceExpression rRef;
if (!(rExpression instanceof PsiReferenceExpression)) {
if (!(rExpression instanceof PsiAssignmentExpression)) return;
final PsiAssignmentExpression rAssignmentExpression = (PsiAssignmentExpression) rExpression;
final PsiExpression assignee =
PsiUtil.deparenthesizeExpression(rAssignmentExpression.getLExpression());
if (!(assignee instanceof PsiReferenceExpression)) return;
rRef = (PsiReferenceExpression) assignee;
} else {
rRef = (PsiReferenceExpression) rExpression;
}
PsiReferenceExpression lRef = (PsiReferenceExpression) lExpression;
PsiManager manager = assignment.getManager();
if (!sameInstanceReferences(lRef, rRef, manager)) return;
final PsiVariable variable = (PsiVariable) lRef.resolve();
if (variable == null) return;
holder.registerProblem(
assignment,
InspectionsBundle.message("assignment.to.itself.problem.descriptor", variable.getName()),
ProblemHighlightType.LIKE_UNUSED_SYMBOL);
}
@Override
@NotNull
public String getText() {
return QuickFixBundle.message(
myVariable instanceof PsiField ? "remove.unused.field" : "remove.unused.variable",
myVariable.getName());
}
private static void generateVariableInfo(
PsiElement originalElement, StringBuilder buffer, PsiVariable variable) {
if (variable instanceof PsiField) {
final PsiClass parentClass = ((PsiField) variable).getContainingClass();
if (parentClass != null) {
buffer.append(JavaDocUtil.getShortestClassName(parentClass, variable));
newLine(buffer);
}
generateModifiers(buffer, variable);
}
final PsiType type =
variable instanceof GrVariable
? ((GrVariable) variable).getDeclaredType()
: variable.getType();
PsiImplUtil.appendTypeString(
buffer, calcSubstitutor(originalElement).substitute(type), originalElement);
buffer.append(" ");
buffer.append(variable.getName());
if (variable instanceof GrVariable) {
newLine(buffer);
while (originalElement != null) {
PsiReference ref = originalElement.getReference();
if (ref != null && ref.resolve() != null) break;
originalElement = originalElement.getParent();
}
if (originalElement != null) {
appendInferredType(originalElement, (GrVariable) variable, buffer);
}
}
}
@Override
public void visitVariable(@NotNull PsiVariable variable) {
super.visitVariable(variable);
final String variableName = variable.getName();
if (!PsiKeyword.ASSERT.equals(variableName)) {
return;
}
registerVariableError(variable);
}
@Override
@NotNull
public String getText() {
@NonNls String message;
switch (myFixType) {
case MAKE_FINAL:
message = "make.final.text";
break;
case MAKE_ARRAY:
message = "make.final.transform.to.one.element.array";
break;
case COPY_TO_FINAL:
return QuickFixBundle.message("make.final.copy.to.temp", myVariable.getName());
default:
return "";
}
Collection<PsiVariable> vars = getVariablesToFix();
String varNames = vars.size() == 1 ? "'" + myVariable.getName() + "'" : "variables";
return QuickFixBundle.message(message, varNames);
}
private static String getConstantValueText(Object value, @Nullable PsiVariable constant) {
if (constant != null) {
return constant instanceof PsiMember
? PsiUtil.getMemberQualifiedName((PsiMember) constant)
: constant.getName();
}
return value instanceof String
? "\"" + StringUtil.escapeStringCharacters((String) value) + "\""
: String.valueOf(value);
}
private static String suggestNewName(Project project, PsiVariable variable) {
// new name should not conflict with another variable at the variable declaration level and
// usage level
String name = variable.getName();
// trim last digit to suggest variable names like i1,i2, i3...
if (name.length() > 1 && Character.isDigit(name.charAt(name.length() - 1))) {
name = name.substring(0, name.length() - 1);
}
name = "final" + StringUtil.capitalize(StringUtil.trimStart(name, "final"));
return JavaCodeStyleManager.getInstance(project)
.suggestUniqueVariableName(name, variable, true);
}
@Override
public void visitVariable(PsiVariable variable) {
if (variable == myLocalVariable) return;
if (myParameterName.equals(variable.getName())) {
String descr =
RefactoringBundle.message(
"there.is.already.a.0.it.will.conflict.with.an.introduced.parameter",
RefactoringUIUtil.getDescription(variable, true));
conflict =
Pair.<PsiElement, String>create(variable, CommonRefactoringUtil.capitalize(descr));
}
}
@Nullable
private static String getLookupObjectName(Object o) {
if (o instanceof PsiVariable) {
final PsiVariable variable = (PsiVariable) o;
JavaCodeStyleManager codeStyleManager =
JavaCodeStyleManager.getInstance(variable.getProject());
VariableKind variableKind = codeStyleManager.getVariableKind(variable);
return codeStyleManager.variableNameToPropertyName(variable.getName(), variableKind);
}
if (o instanceof PsiMethod) {
return ((PsiMethod) o).getName();
}
return null;
}
private void makeArray(PsiVariable variable) throws IncorrectOperationException {
PsiType type = variable.getType();
PsiElementFactory factory = JavaPsiFacade.getInstance(myClass.getProject()).getElementFactory();
PsiType newType = type.createArrayType();
PsiDeclarationStatement variableDeclarationStatement;
PsiExpression initializer = variable.getInitializer();
if (initializer == null) {
String expression = "[1]";
while (type instanceof PsiArrayType) {
expression += "[1]";
type = ((PsiArrayType) type).getComponentType();
}
PsiExpression init =
factory.createExpressionFromText("new " + type.getCanonicalText() + expression, variable);
variableDeclarationStatement =
factory.createVariableDeclarationStatement(variable.getName(), newType, init);
} else {
PsiExpression init =
factory.createExpressionFromText("{ " + initializer.getText() + " }", variable);
variableDeclarationStatement =
factory.createVariableDeclarationStatement(variable.getName(), newType, init);
}
PsiVariable newVariable = (PsiVariable) variableDeclarationStatement.getDeclaredElements()[0];
PsiUtil.setModifierProperty(newVariable, PsiModifier.FINAL, true);
PsiElement newExpression =
factory.createExpressionFromText(variable.getName() + "[0]", variable);
PsiElement outerCodeBlock = PsiUtil.getVariableCodeBlock(variable, null);
if (outerCodeBlock == null) return;
List<PsiReferenceExpression> outerReferences = new ArrayList<PsiReferenceExpression>();
collectReferences(outerCodeBlock, variable, outerReferences);
replaceReferences(outerReferences, newExpression);
variable.replace(newVariable);
}
@Override
public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
PsiElement element = descriptor.getStartElement();
if (!(element instanceof PsiLoopStatement)) return;
PsiLoopStatement loop = (PsiLoopStatement) element;
IteratorDeclaration declaration;
declaration = IteratorDeclaration.fromLoop(loop);
if (declaration == null) return;
PsiStatement body = loop.getBody();
if (!(body instanceof PsiBlockStatement)) return;
PsiStatement[] statements = ((PsiBlockStatement) body).getCodeBlock().getStatements();
PsiElementFactory factory = JavaPsiFacade.getElementFactory(project);
String replacement = null;
CommentTracker ct = new CommentTracker();
if (statements.length == 2 && statements[1] instanceof PsiIfStatement) {
PsiVariable variable = declaration.getNextElementVariable(statements[0]);
if (variable == null) return;
PsiExpression condition = ((PsiIfStatement) statements[1]).getCondition();
if (condition == null) return;
replacement = generateRemoveIf(declaration, ct, condition, variable.getName());
} else if (statements.length == 1 && statements[0] instanceof PsiIfStatement) {
PsiExpression condition = ((PsiIfStatement) statements[0]).getCondition();
if (condition == null) return;
PsiElement ref = declaration.findOnlyIteratorRef(condition);
if (ref != null) {
PsiElement call = ref.getParent().getParent();
if (!declaration.isIteratorMethodCall(call, "next")) return;
PsiType type = ((PsiExpression) call).getType();
JavaCodeStyleManager javaCodeStyleManager = JavaCodeStyleManager.getInstance(project);
SuggestedNameInfo info =
javaCodeStyleManager.suggestVariableName(VariableKind.PARAMETER, null, null, type);
if (info.names.length == 0) {
info =
javaCodeStyleManager.suggestVariableName(
VariableKind.PARAMETER, "value", null, type);
}
String paramName =
javaCodeStyleManager.suggestUniqueVariableName(info, condition, true).names[0];
ct.replace(call, factory.createIdentifier(paramName));
replacement = generateRemoveIf(declaration, ct, condition, paramName);
}
}
if (replacement == null) return;
ct.delete(declaration.getIterator());
PsiElement result = ct.replaceAndRestoreComments(loop, replacement);
LambdaCanBeMethodReferenceInspection.replaceAllLambdasWithMethodReferences(result);
CodeStyleManager.getInstance(project).reformat(result);
}
private void copyToFinal() throws IncorrectOperationException {
PsiManager psiManager = myClass.getManager();
PsiElementFactory factory =
JavaPsiFacade.getInstance(psiManager.getProject()).getElementFactory();
PsiExpression initializer = factory.createExpressionFromText(myVariable.getName(), myClass);
String newName = suggestNewName(psiManager.getProject(), myVariable);
PsiType type = myVariable.getType();
PsiDeclarationStatement copyDecl =
factory.createVariableDeclarationStatement(newName, type, initializer);
PsiVariable newVariable = (PsiVariable) copyDecl.getDeclaredElements()[0];
PsiUtil.setModifierProperty(newVariable, PsiModifier.FINAL, true);
PsiElement statement = getStatementToInsertBefore();
if (statement == null) return;
statement.getParent().addBefore(copyDecl, statement);
PsiExpression newExpression = factory.createExpressionFromText(newName, myVariable);
replaceReferences(myClass, myVariable, newExpression);
}
private Pair<PsiVariable, PsiType> findVariable(final PsiElement element) {
PsiVariable variable = null;
if (element instanceof PsiIdentifier) {
if (element.getParent() instanceof PsiVariable) {
variable = (PsiVariable) element.getParent();
}
} else if (element instanceof PsiJavaToken) {
final PsiJavaToken token = (PsiJavaToken) element;
if (token.getTokenType() != JavaTokenType.EQ) return null;
if (token.getParent() instanceof PsiVariable) {
variable = (PsiVariable) token.getParent();
}
}
if (variable == null) {
return null;
}
variableName = variable.getName();
final PsiExpression initializer = variable.getInitializer();
if (initializer == null) return null;
final PsiType variableType = variable.getType();
final PsiType initializerType = initializer.getType();
if (!(variableType instanceof PsiClassType)) return null;
final PsiClassType variableClassType = (PsiClassType) variableType;
if (!variableClassType.isRaw()) return null;
if (!(initializerType instanceof PsiClassType)) return null;
final PsiClassType initializerClassType = (PsiClassType) initializerType;
if (initializerClassType.isRaw()) return null;
final PsiClassType.ClassResolveResult variableResolveResult =
variableClassType.resolveGenerics();
final PsiClassType.ClassResolveResult initializerResolveResult =
initializerClassType.resolveGenerics();
if (initializerResolveResult.getElement() == null) return null;
final PsiSubstitutor targetSubstitutor =
TypeConversionUtil.getClassSubstitutor(
variableResolveResult.getElement(),
initializerResolveResult.getElement(),
initializerResolveResult.getSubstitutor());
if (targetSubstitutor == null) return null;
PsiType type =
JavaPsiFacade.getInstance(variable.getProject())
.getElementFactory()
.createType(variableResolveResult.getElement(), targetSubstitutor);
newTypeName = type.getCanonicalText();
return Pair.create(variable, type);
}
private static String getUniqueParameterName(
PsiParameter[] parameters, PsiVariable variable, HashMap<PsiField, String> usedNames) {
final JavaCodeStyleManager styleManager =
JavaCodeStyleManager.getInstance(variable.getProject());
final SuggestedNameInfo nameInfo =
styleManager.suggestVariableName(
VariableKind.PARAMETER,
styleManager.variableNameToPropertyName(variable.getName(), VariableKind.FIELD),
null,
variable.getType());
String newName = nameInfo.names[0];
int n = 1;
while (true) {
if (isUnique(parameters, newName, usedNames)) {
break;
}
newName = nameInfo.names[0] + n++;
}
return newName;
}
private static void findSubmemberHidesFieldCollisions(
final PsiField field, final String newName, final List<UsageInfo> result) {
if (field.getContainingClass() == null) return;
if (field.hasModifierProperty(PsiModifier.PRIVATE)) return;
final PsiClass containingClass = field.getContainingClass();
Collection<PsiClass> inheritors = ClassInheritorsSearch.search(containingClass).findAll();
for (PsiClass inheritor : inheritors) {
PsiField conflictingField = inheritor.findFieldByName(newName, false);
if (conflictingField != null) {
result.add(new SubmemberHidesMemberUsageInfo(conflictingField, field));
} else { // local class
final PsiMember member = PsiTreeUtil.getParentOfType(inheritor, PsiMember.class);
if (member != null) {
final ArrayList<PsiVariable> variables = new ArrayList<>();
ControlFlowUtil.collectOuterLocals(variables, inheritor, inheritor, member);
for (PsiVariable variable : variables) {
if (newName.equals(variable.getName())) {
result.add(new FieldHidesLocalUsageInfo(variable, field));
}
}
}
}
}
}
@Override
public void handleInsert(InsertionContext context) {
PsiVariable variable = getObject();
Document document = context.getDocument();
document.replaceString(context.getStartOffset(), context.getTailOffset(), variable.getName());
context.commitDocument();
if (variable instanceof PsiField) {
if (willBeImported()) {
RangeMarker toDelete =
JavaCompletionUtil.insertTemporary(context.getTailOffset(), document, " ");
context.commitDocument();
final PsiReferenceExpression ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getStartOffset(), PsiReferenceExpression.class, false);
if (ref != null) {
ref.bindToElementViaStaticImport(((PsiField) variable).getContainingClass());
PostprocessReformattingAspect.getInstance(ref.getProject()).doPostponedFormatting();
}
if (toDelete.isValid()) {
document.deleteString(toDelete.getStartOffset(), toDelete.getEndOffset());
}
context.commitDocument();
} else if (shouldQualify((PsiField) variable, context)) {
qualifyFieldReference(context, (PsiField) variable);
}
}
PsiReferenceExpression ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getTailOffset() - 1, PsiReferenceExpression.class, false);
if (ref != null) {
JavaCodeStyleManager.getInstance(context.getProject()).shortenClassReferences(ref);
}
ref =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getTailOffset() - 1, PsiReferenceExpression.class, false);
makeVariableFinalIfNeeded(context, ref);
final char completionChar = context.getCompletionChar();
if (completionChar == '=') {
context.setAddCompletionChar(false);
TailType.EQ.processTail(context.getEditor(), context.getTailOffset());
} else if (completionChar == ','
&& getAttribute(LookupItem.TAIL_TYPE_ATTR) != TailType.UNKNOWN) {
context.setAddCompletionChar(false);
TailType.COMMA.processTail(context.getEditor(), context.getTailOffset());
AutoPopupController.getInstance(context.getProject())
.autoPopupParameterInfo(context.getEditor(), null);
} else if (completionChar == ':') {
context.setAddCompletionChar(false);
TailType.COND_EXPR_COLON.processTail(context.getEditor(), context.getTailOffset());
} else if (completionChar == '.') {
AutoPopupController.getInstance(context.getProject())
.autoPopupMemberLookup(context.getEditor(), null);
} else if (completionChar == '!' && PsiType.BOOLEAN.isAssignableFrom(variable.getType())) {
context.setAddCompletionChar(false);
if (ref != null) {
FeatureUsageTracker.getInstance()
.triggerFeatureUsed(CodeCompletionFeatures.EXCLAMATION_FINISH);
document.insertString(ref.getTextRange().getStartOffset(), "!");
}
}
}
private static void reportConstantReferenceValues(
ProblemsHolder holder, StandardInstructionVisitor visitor, Set<PsiElement> reportedAnchors) {
for (Pair<PsiReferenceExpression, DfaConstValue> pair : visitor.getConstantReferenceValues()) {
PsiReferenceExpression ref = pair.first;
if (!reportedAnchors.add(ref)) {
continue;
}
final Object value = pair.second.getValue();
PsiVariable constant = pair.second.getConstant();
final String presentableName = constant != null ? constant.getName() : String.valueOf(value);
final String exprText = getConstantValueText(value, constant);
if (presentableName == null || exprText == null) {
continue;
}
holder.registerProblem(
ref,
"Value <code>#ref</code> #loc is always '" + presentableName + "'",
new LocalQuickFix() {
@NotNull
@Override
public String getName() {
return "Replace with '" + presentableName + "'";
}
@NotNull
@Override
public String getFamilyName() {
return "Replace with constant value";
}
@Override
public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
if (!FileModificationService.getInstance()
.preparePsiElementsForWrite(descriptor.getPsiElement())) {
return;
}
JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
PsiElement newElement =
descriptor
.getPsiElement()
.replace(facade.getElementFactory().createExpressionFromText(exprText, null));
newElement =
JavaCodeStyleManager.getInstance(project).shortenClassReferences(newElement);
if (newElement instanceof PsiJavaCodeReferenceElement) {
PsiJavaCodeReferenceElement ref = (PsiJavaCodeReferenceElement) newElement;
PsiElement target = ref.resolve();
String shortName = ref.getReferenceName();
if (target != null
&& shortName != null
&& ref.isQualified()
&& facade.getResolveHelper().resolveReferencedVariable(shortName, newElement)
== target) {
newElement.replace(
facade.getElementFactory().createExpressionFromText(shortName, null));
}
}
}
});
}
}
@Nullable
public static HighlightInfo checkFinalVariableMightAlreadyHaveBeenAssignedTo(
@NotNull PsiVariable variable,
@NotNull PsiReferenceExpression expression,
@NotNull Map<PsiElement, Collection<ControlFlowUtil.VariableInfo>> finalVarProblems) {
if (!PsiUtil.isAccessedForWriting(expression)) return null;
final PsiElement scope =
variable instanceof PsiField
? variable.getParent()
: variable.getParent() == null ? null : variable.getParent().getParent();
PsiElement codeBlock = PsiUtil.getTopLevelEnclosingCodeBlock(expression, scope);
if (codeBlock == null) return null;
Collection<ControlFlowUtil.VariableInfo> codeBlockProblems =
getFinalVariableProblemsInBlock(finalVarProblems, codeBlock);
boolean alreadyAssigned = false;
for (ControlFlowUtil.VariableInfo variableInfo : codeBlockProblems) {
if (variableInfo.expression == expression) {
alreadyAssigned = true;
break;
}
}
if (!alreadyAssigned) {
if (!(variable instanceof PsiField)) return null;
final PsiField field = (PsiField) variable;
final PsiClass aClass = field.getContainingClass();
if (aClass == null) return null;
// field can get assigned in other field initializers
final PsiField[] fields = aClass.getFields();
boolean isFieldStatic = field.hasModifierProperty(PsiModifier.STATIC);
for (PsiField psiField : fields) {
PsiExpression initializer = psiField.getInitializer();
if (psiField != field
&& psiField.hasModifierProperty(PsiModifier.STATIC) == isFieldStatic
&& initializer != null
&& initializer != codeBlock
&& !variableDefinitelyNotAssignedIn(field, initializer)) {
alreadyAssigned = true;
break;
}
}
if (!alreadyAssigned) {
// field can get assigned in class initializers
final PsiMember enclosingConstructorOrInitializer =
PsiUtil.findEnclosingConstructorOrInitializer(expression);
if (enclosingConstructorOrInitializer == null
|| !aClass
.getManager()
.areElementsEquivalent(
enclosingConstructorOrInitializer.getContainingClass(), aClass)) {
return null;
}
final PsiClassInitializer[] initializers = aClass.getInitializers();
for (PsiClassInitializer initializer : initializers) {
if (initializer.hasModifierProperty(PsiModifier.STATIC)
== field.hasModifierProperty(PsiModifier.STATIC)) {
final PsiCodeBlock body = initializer.getBody();
if (body == codeBlock) return null;
try {
final ControlFlow controlFlow = getControlFlow(body);
if (!ControlFlowUtil.isVariableDefinitelyNotAssigned(field, controlFlow)) {
alreadyAssigned = true;
break;
}
} catch (AnalysisCanceledException e) {
// incomplete code
return null;
}
}
}
}
if (!alreadyAssigned && !field.hasModifierProperty(PsiModifier.STATIC)) {
// then check if instance field already assigned in other constructor
final PsiMethod ctr =
codeBlock.getParent() instanceof PsiMethod ? (PsiMethod) codeBlock.getParent() : null;
// assignment to final field in several constructors threatens us only if these are linked
// (there is this() call in the beginning)
final List<PsiMethod> redirectedConstructors =
ctr != null && ctr.isConstructor()
? JavaHighlightUtil.getChainedConstructors(ctr)
: null;
for (int j = 0; redirectedConstructors != null && j < redirectedConstructors.size(); j++) {
PsiMethod redirectedConstructor = redirectedConstructors.get(j);
PsiCodeBlock body = redirectedConstructor.getBody();
if (body != null && variableDefinitelyAssignedIn(variable, body)) {
alreadyAssigned = true;
break;
}
}
}
}
if (alreadyAssigned) {
String description =
JavaErrorMessages.message("variable.already.assigned", variable.getName());
final HighlightInfo highlightInfo =
HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
.range(expression)
.descriptionAndTooltip(description)
.create();
QuickFixAction.registerQuickFixAction(
highlightInfo,
QUICK_FIX_FACTORY.createModifierListFix(variable, PsiModifier.FINAL, false, false));
QuickFixAction.registerQuickFixAction(
highlightInfo, QUICK_FIX_FACTORY.createDeferFinalAssignmentFix(variable, expression));
return highlightInfo;
}
return null;
}
@Override
protected void updateTitle(@Nullable PsiVariable variable) {
if (variable == null) return;
updateTitle(variable, variable.getName());
}
private static boolean addParameterToConstructor(
final Project project,
final PsiFile file,
final Editor editor,
final PsiMethod constructor,
final PsiField[] fields)
throws IncorrectOperationException {
final PsiParameterList parameterList = constructor.getParameterList();
final PsiParameter[] parameters = parameterList.getParameters();
ParameterInfoImpl[] newParamInfos = new ParameterInfoImpl[parameters.length + fields.length];
final List<PsiVariable> params = new ArrayList<PsiVariable>(Arrays.asList(parameters));
Collections.addAll(params, fields);
Collections.sort(params, new FieldParameterComparator(parameterList));
int i = 0;
final HashMap<PsiField, String> usedFields = new HashMap<PsiField, String>();
for (PsiVariable param : params) {
final PsiType paramType = param.getType();
if (param instanceof PsiParameter) {
newParamInfos[i++] =
new ParameterInfoImpl(
parameterList.getParameterIndex((PsiParameter) param),
param.getName(),
paramType,
param.getName());
} else {
final String uniqueParameterName = getUniqueParameterName(parameters, param, usedFields);
usedFields.put((PsiField) param, uniqueParameterName);
newParamInfos[i++] =
new ParameterInfoImpl(-1, uniqueParameterName, paramType, uniqueParameterName);
}
}
final SmartPointerManager manager = SmartPointerManager.getInstance(project);
final SmartPsiElementPointer constructorPointer =
manager.createSmartPsiElementPointer(constructor);
final PsiMethod fromText =
JavaPsiFacade.getElementFactory(project)
.createMethodFromText(createDummyMethod(constructor, newParamInfos), constructor);
final PsiClass containingClass = constructor.getContainingClass();
if (containingClass == null) return false;
final int minUsagesNumber =
containingClass.findMethodsBySignature(fromText, false).length > 0 ? 0 : 1;
final List<ParameterInfoImpl> parameterInfos =
ChangeMethodSignatureFromUsageFix.performChange(
project, editor, file, constructor, minUsagesNumber, newParamInfos, true, true);
final ParameterInfoImpl[] resultParams =
parameterInfos != null
? parameterInfos.toArray(new ParameterInfoImpl[parameterInfos.size()])
: newParamInfos;
return ApplicationManager.getApplication()
.runWriteAction(
new Computable<Boolean>() {
@Override
public Boolean compute() {
return doCreate(
project, editor, parameters, constructorPointer, resultParams, usedFields);
}
});
}
@Nullable
private String createListIterationText(@NotNull PsiForStatement forStatement) {
final PsiBinaryExpression condition =
(PsiBinaryExpression) ParenthesesUtils.stripParentheses(forStatement.getCondition());
if (condition == null) {
return null;
}
final PsiExpression lhs = ParenthesesUtils.stripParentheses(condition.getLOperand());
if (lhs == null) {
return null;
}
final PsiExpression rhs = ParenthesesUtils.stripParentheses(condition.getROperand());
if (rhs == null) {
return null;
}
final IElementType tokenType = condition.getOperationTokenType();
final String indexName;
PsiExpression collectionSize;
if (JavaTokenType.LT.equals(tokenType)) {
indexName = lhs.getText();
collectionSize = rhs;
} else if (JavaTokenType.GT.equals(tokenType)) {
indexName = rhs.getText();
collectionSize = lhs;
} else {
return null;
}
if (collectionSize instanceof PsiReferenceExpression) {
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) collectionSize;
final PsiElement target = referenceExpression.resolve();
if (target instanceof PsiVariable) {
final PsiVariable variable = (PsiVariable) target;
collectionSize = ParenthesesUtils.stripParentheses(variable.getInitializer());
}
}
if (!(collectionSize instanceof PsiMethodCallExpression)) {
return null;
}
final PsiMethodCallExpression methodCallExpression =
(PsiMethodCallExpression) ParenthesesUtils.stripParentheses(collectionSize);
if (methodCallExpression == null) {
return null;
}
final PsiReferenceExpression listLengthExpression =
methodCallExpression.getMethodExpression();
final PsiExpression qualifier =
ParenthesesUtils.stripParentheses(listLengthExpression.getQualifierExpression());
final PsiReferenceExpression listReference;
if (qualifier instanceof PsiReferenceExpression) {
listReference = (PsiReferenceExpression) qualifier;
} else {
listReference = null;
}
PsiType parameterType;
if (listReference == null) {
parameterType = extractListTypeFromContainingClass(forStatement);
} else {
final PsiType type = listReference.getType();
if (type == null) {
return null;
}
parameterType = extractContentTypeFromType(type);
}
if (parameterType == null) {
parameterType = TypeUtils.getObjectType(forStatement);
}
final String typeString = parameterType.getCanonicalText();
final PsiVariable listVariable;
if (listReference == null) {
listVariable = null;
} else {
final PsiElement target = listReference.resolve();
if (!(target instanceof PsiVariable)) {
return null;
}
listVariable = (PsiVariable) target;
}
final PsiStatement body = forStatement.getBody();
final PsiStatement firstStatement = getFirstStatement(body);
final boolean isDeclaration =
isListElementDeclaration(firstStatement, listVariable, indexName, parameterType);
final String contentVariableName;
@NonNls final String finalString;
final PsiStatement statementToSkip;
if (isDeclaration) {
final PsiDeclarationStatement declarationStatement =
(PsiDeclarationStatement) firstStatement;
assert declarationStatement != null;
final PsiElement[] declaredElements = declarationStatement.getDeclaredElements();
final PsiElement declaredElement = declaredElements[0];
if (!(declaredElement instanceof PsiVariable)) {
return null;
}
final PsiVariable variable = (PsiVariable) declaredElement;
contentVariableName = variable.getName();
statementToSkip = declarationStatement;
if (variable.hasModifierProperty(PsiModifier.FINAL)) {
finalString = "final ";
} else {
finalString = "";
}
} else {
final String collectionName;
if (listReference == null) {
collectionName = null;
} else {
collectionName = listReference.getReferenceName();
}
contentVariableName = createNewVariableName(forStatement, parameterType, collectionName);
finalString = "";
statementToSkip = null;
}
@NonNls final StringBuilder out = new StringBuilder();
out.append("for(");
out.append(finalString);
out.append(typeString);
out.append(' ');
out.append(contentVariableName);
out.append(": ");
@NonNls final String listName;
if (listReference == null) {
listName = "this";
} else {
listName = listReference.getText();
}
out.append(listName);
out.append(')');
if (body != null) {
replaceCollectionGetAccess(
body, contentVariableName, listVariable, indexName, statementToSkip, out);
}
return out.toString();
}
@Nullable
private String createArrayIterationText(@NotNull PsiForStatement forStatement) {
final PsiExpression condition = forStatement.getCondition();
final PsiBinaryExpression strippedCondition =
(PsiBinaryExpression) ParenthesesUtils.stripParentheses(condition);
if (strippedCondition == null) {
return null;
}
final PsiExpression lhs = ParenthesesUtils.stripParentheses(strippedCondition.getLOperand());
if (lhs == null) {
return null;
}
final PsiExpression rhs = ParenthesesUtils.stripParentheses(strippedCondition.getROperand());
if (rhs == null) {
return null;
}
final IElementType tokenType = strippedCondition.getOperationTokenType();
final PsiReferenceExpression arrayLengthExpression;
final String indexName;
if (tokenType.equals(JavaTokenType.LT)) {
arrayLengthExpression = (PsiReferenceExpression) ParenthesesUtils.stripParentheses(rhs);
indexName = lhs.getText();
} else if (tokenType.equals(JavaTokenType.GT)) {
arrayLengthExpression = (PsiReferenceExpression) ParenthesesUtils.stripParentheses(lhs);
indexName = rhs.getText();
} else {
return null;
}
if (arrayLengthExpression == null) {
return null;
}
PsiReferenceExpression arrayReference =
(PsiReferenceExpression) arrayLengthExpression.getQualifierExpression();
if (arrayReference == null) {
final PsiElement target = arrayLengthExpression.resolve();
if (!(target instanceof PsiVariable)) {
return null;
}
final PsiVariable variable = (PsiVariable) target;
final PsiExpression initializer = variable.getInitializer();
if (!(initializer instanceof PsiReferenceExpression)) {
return null;
}
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) initializer;
arrayReference = (PsiReferenceExpression) referenceExpression.getQualifierExpression();
if (arrayReference == null) {
return null;
}
}
final PsiType type = arrayReference.getType();
if (!(type instanceof PsiArrayType)) {
return null;
}
final PsiArrayType arrayType = (PsiArrayType) type;
final PsiType componentType = arrayType.getComponentType();
final String typeText = componentType.getCanonicalText();
final PsiElement target = arrayReference.resolve();
if (!(target instanceof PsiVariable)) {
return null;
}
final PsiVariable arrayVariable = (PsiVariable) target;
final PsiStatement body = forStatement.getBody();
final PsiStatement firstStatement = getFirstStatement(body);
final boolean isDeclaration =
isArrayElementDeclaration(firstStatement, arrayVariable, indexName);
final String contentVariableName;
@NonNls final String finalString;
final PsiStatement statementToSkip;
if (isDeclaration) {
final PsiDeclarationStatement declarationStatement =
(PsiDeclarationStatement) firstStatement;
assert declarationStatement != null;
final PsiElement[] declaredElements = declarationStatement.getDeclaredElements();
final PsiElement declaredElement = declaredElements[0];
if (!(declaredElement instanceof PsiVariable)) {
return null;
}
final PsiVariable variable = (PsiVariable) declaredElement;
if (VariableAccessUtils.variableIsAssigned(variable, forStatement)) {
final String collectionName = arrayReference.getReferenceName();
contentVariableName = createNewVariableName(forStatement, componentType, collectionName);
final Project project = forStatement.getProject();
final CodeStyleSettings codeStyleSettings = CodeStyleSettingsManager.getSettings(project);
if (codeStyleSettings.GENERATE_FINAL_LOCALS) {
finalString = "final ";
} else {
finalString = "";
}
statementToSkip = null;
} else {
contentVariableName = variable.getName();
statementToSkip = declarationStatement;
if (variable.hasModifierProperty(PsiModifier.FINAL)) {
finalString = "final ";
} else {
finalString = "";
}
}
} else {
final String collectionName = arrayReference.getReferenceName();
contentVariableName = createNewVariableName(forStatement, componentType, collectionName);
final Project project = forStatement.getProject();
final CodeStyleSettings codeStyleSettings = CodeStyleSettingsManager.getSettings(project);
if (codeStyleSettings.GENERATE_FINAL_LOCALS) {
finalString = "final ";
} else {
finalString = "";
}
statementToSkip = null;
}
@NonNls final StringBuilder out = new StringBuilder();
out.append("for(");
out.append(finalString);
out.append(typeText);
out.append(' ');
out.append(contentVariableName);
out.append(": ");
final String arrayName = arrayReference.getText();
out.append(arrayName);
out.append(')');
if (body != null) {
replaceArrayAccess(
body, contentVariableName, arrayVariable, indexName, statementToSkip, out);
}
return out.toString();
}
@Nullable
private String createCollectionIterationText(@NotNull PsiForStatement forStatement)
throws IncorrectOperationException {
final PsiStatement body = forStatement.getBody();
final PsiStatement firstStatement = getFirstStatement(body);
final PsiStatement initialization = forStatement.getInitialization();
if (!(initialization instanceof PsiDeclarationStatement)) {
return null;
}
final PsiDeclarationStatement declaration = (PsiDeclarationStatement) initialization;
final PsiElement declaredIterator = declaration.getDeclaredElements()[0];
if (!(declaredIterator instanceof PsiVariable)) {
return null;
}
final PsiVariable iteratorVariable = (PsiVariable) declaredIterator;
final PsiMethodCallExpression initializer =
(PsiMethodCallExpression) iteratorVariable.getInitializer();
if (initializer == null) {
return null;
}
final PsiType iteratorType = initializer.getType();
if (iteratorType == null) {
return null;
}
final PsiType iteratorContentType = extractContentTypeFromType(iteratorType);
final PsiType iteratorVariableType = iteratorVariable.getType();
final PsiType contentType;
final PsiClassType javaLangObject = TypeUtils.getObjectType(forStatement);
if (iteratorContentType == null) {
final PsiType iteratorVariableContentType =
extractContentTypeFromType(iteratorVariableType);
if (iteratorVariableContentType == null) {
contentType = javaLangObject;
} else {
contentType = iteratorVariableContentType;
}
} else {
contentType = iteratorContentType;
}
final PsiReferenceExpression methodExpression = initializer.getMethodExpression();
final PsiExpression collection = methodExpression.getQualifierExpression();
final String iteratorName = iteratorVariable.getName();
final boolean isDeclaration =
isIteratorNextDeclaration(firstStatement, iteratorName, contentType);
final PsiStatement statementToSkip;
@NonNls final String finalString;
final String contentVariableName;
if (isDeclaration) {
final PsiDeclarationStatement declarationStatement =
(PsiDeclarationStatement) firstStatement;
assert declarationStatement != null;
final PsiElement[] declaredElements = declarationStatement.getDeclaredElements();
final PsiElement declaredElement = declaredElements[0];
if (!(declaredElement instanceof PsiVariable)) {
return null;
}
final PsiVariable variable = (PsiVariable) declaredElement;
contentVariableName = variable.getName();
statementToSkip = declarationStatement;
if (variable.hasModifierProperty(PsiModifier.FINAL)) {
finalString = "final ";
} else {
finalString = "";
}
} else {
if (collection instanceof PsiReferenceExpression) {
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression) collection;
final String collectionName = referenceExpression.getReferenceName();
contentVariableName = createNewVariableName(forStatement, contentType, collectionName);
} else {
contentVariableName = createNewVariableName(forStatement, contentType, null);
}
final Project project = forStatement.getProject();
final CodeStyleSettings codeStyleSettings = CodeStyleSettingsManager.getSettings(project);
if (codeStyleSettings.GENERATE_FINAL_LOCALS) {
finalString = "final ";
} else {
finalString = "";
}
statementToSkip = null;
}
final String contentTypeString = contentType.getCanonicalText();
@NonNls final StringBuilder out = new StringBuilder();
out.append("for(");
out.append(finalString);
out.append(contentTypeString);
out.append(' ');
out.append(contentVariableName);
out.append(": ");
if (!contentType.equals(javaLangObject)) {
@NonNls final String iterableTypeString = "java.lang.Iterable<" + contentTypeString + '>';
if (iteratorContentType == null) {
out.append('(');
out.append(iterableTypeString);
out.append(')');
}
}
if (collection == null) {
out.append("this");
} else {
out.append(collection.getText());
}
out.append(')');
replaceIteratorNext(
body, contentVariableName, iteratorName, statementToSkip, out, contentType);
return out.toString();
}
private static void reportConstantReferenceValues(
ProblemsHolder holder, StandardInstructionVisitor visitor, Set<PsiElement> reportedAnchors) {
for (Pair<PsiReferenceExpression, DfaConstValue> pair : visitor.getConstantReferenceValues()) {
PsiReferenceExpression ref = pair.first;
if (ref.getParent() instanceof PsiReferenceExpression || !reportedAnchors.add(ref)) {
continue;
}
final Object value = pair.second.getValue();
PsiVariable constant = pair.second.getConstant();
final String presentableName = constant != null ? constant.getName() : String.valueOf(value);
final String exprText = String.valueOf(value);
if (presentableName == null || exprText == null) {
continue;
}
holder.registerProblem(
ref,
"Value <code>#ref</code> #loc is always '" + presentableName + "'",
new LocalQuickFix() {
@NotNull
@Override
public String getName() {
return "Replace with '" + presentableName + "'";
}
@NotNull
@Override
public String getFamilyName() {
return "Replace with constant value";
}
@Override
public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
if (!FileModificationService.getInstance()
.preparePsiElementsForWrite(descriptor.getPsiElement())) {
return;
}
PsiElement problemElement = descriptor.getPsiElement();
if (problemElement == null) return;
PsiMethodCallExpression call =
problemElement.getParent() instanceof PsiExpressionList
&& problemElement.getParent().getParent()
instanceof PsiMethodCallExpression
? (PsiMethodCallExpression) problemElement.getParent().getParent()
: null;
PsiMethod targetMethod = call == null ? null : call.resolveMethod();
JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
problemElement.replace(
facade.getElementFactory().createExpressionFromText(exprText, null));
if (targetMethod != null) {
ExtractMethodUtil.addCastsToEnsureResolveTarget(targetMethod, call);
}
}
});
}
}
@Nullable
static HighlightInfo checkCannotWriteToFinal(
@NotNull PsiExpression expression, @NotNull PsiFile containingFile) {
PsiReferenceExpression reference = null;
boolean readBeforeWrite = false;
if (expression instanceof PsiAssignmentExpression) {
final PsiAssignmentExpression assignmentExpression = (PsiAssignmentExpression) expression;
final PsiExpression left =
PsiUtil.skipParenthesizedExprDown(assignmentExpression.getLExpression());
if (left instanceof PsiReferenceExpression) {
reference = (PsiReferenceExpression) left;
}
readBeforeWrite = assignmentExpression.getOperationTokenType() != JavaTokenType.EQ;
} else if (expression instanceof PsiPostfixExpression) {
final PsiExpression operand =
PsiUtil.skipParenthesizedExprDown(((PsiPostfixExpression) expression).getOperand());
final IElementType sign = ((PsiPostfixExpression) expression).getOperationTokenType();
if (operand instanceof PsiReferenceExpression
&& (sign == JavaTokenType.PLUSPLUS || sign == JavaTokenType.MINUSMINUS)) {
reference = (PsiReferenceExpression) operand;
}
readBeforeWrite = true;
} else if (expression instanceof PsiPrefixExpression) {
final PsiExpression operand =
PsiUtil.skipParenthesizedExprDown(((PsiPrefixExpression) expression).getOperand());
final IElementType sign = ((PsiPrefixExpression) expression).getOperationTokenType();
if (operand instanceof PsiReferenceExpression
&& (sign == JavaTokenType.PLUSPLUS || sign == JavaTokenType.MINUSMINUS)) {
reference = (PsiReferenceExpression) operand;
}
readBeforeWrite = true;
}
final PsiElement resolved = reference == null ? null : reference.resolve();
PsiVariable variable = resolved instanceof PsiVariable ? (PsiVariable) resolved : null;
if (variable == null || !variable.hasModifierProperty(PsiModifier.FINAL)) return null;
final boolean canWrite =
canWriteToFinal(variable, expression, reference, containingFile)
&& checkWriteToFinalInsideLambda(variable, reference) == null;
if (readBeforeWrite || !canWrite) {
final String name = variable.getName();
String description =
canWrite
? JavaErrorMessages.message("variable.not.initialized", name)
: JavaErrorMessages.message("assignment.to.final.variable", name);
final HighlightInfo highlightInfo =
HighlightInfo.newHighlightInfo(HighlightInfoType.ERROR)
.range(reference.getTextRange())
.descriptionAndTooltip(description)
.create();
final PsiElement innerClass = getInnerClassVariableReferencedFrom(variable, expression);
if (innerClass == null || variable instanceof PsiField) {
QuickFixAction.registerQuickFixAction(
highlightInfo,
QUICK_FIX_FACTORY.createModifierListFix(variable, PsiModifier.FINAL, false, false));
} else {
QuickFixAction.registerQuickFixAction(
highlightInfo,
QUICK_FIX_FACTORY.createVariableAccessFromInnerClassFix(variable, innerClass));
}
return highlightInfo;
}
return null;
}
public VariableLookupItem(PsiVariable object) {
super(object, object.getName());
myHelper = null;
}
private static void replaceConditionalWithIf(PsiConditionalExpression expression)
throws IncorrectOperationException {
final PsiStatement statement = PsiTreeUtil.getParentOfType(expression, PsiStatement.class);
if (statement == null) {
return;
}
final PsiVariable variable;
if (statement instanceof PsiDeclarationStatement) {
variable = PsiTreeUtil.getParentOfType(expression, PsiVariable.class);
} else {
variable = null;
}
final PsiExpression thenExpression = expression.getThenExpression();
final PsiExpression elseExpression = expression.getElseExpression();
final PsiExpression condition = expression.getCondition();
final PsiExpression strippedCondition = ParenthesesUtils.stripParentheses(condition);
final StringBuilder newStatement = new StringBuilder();
newStatement.append("if(");
if (strippedCondition != null) {
newStatement.append(strippedCondition.getText());
}
newStatement.append(')');
if (variable != null) {
final String name = variable.getName();
newStatement.append(name);
newStatement.append('=');
final PsiExpression initializer = variable.getInitializer();
if (initializer == null) {
return;
}
appendElementTextWithoutParentheses(initializer, expression, thenExpression, newStatement);
newStatement.append("; else ");
newStatement.append(name);
newStatement.append('=');
appendElementTextWithoutParentheses(initializer, expression, elseExpression, newStatement);
newStatement.append(';');
initializer.delete();
final PsiManager manager = statement.getManager();
final Project project = manager.getProject();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(project);
final PsiElementFactory factory = facade.getElementFactory();
final PsiStatement ifStatement =
factory.createStatementFromText(newStatement.toString(), statement);
final PsiElement parent = statement.getParent();
final PsiElement addedElement = parent.addAfter(ifStatement, statement);
final CodeStyleManager styleManager = CodeStyleManager.getInstance(manager.getProject());
styleManager.reformat(addedElement);
} else {
final boolean addBraces =
PsiTreeUtil.getParentOfType(expression, PsiIfStatement.class, true, PsiStatement.class)
!= null;
if (addBraces || thenExpression == null) {
newStatement.append('{');
}
appendElementTextWithoutParentheses(statement, expression, thenExpression, newStatement);
if (addBraces) {
newStatement.append("} else {");
} else {
if (thenExpression == null) {
newStatement.append('}');
}
newStatement.append(" else ");
if (elseExpression == null) {
newStatement.append('{');
}
}
appendElementTextWithoutParentheses(statement, expression, elseExpression, newStatement);
if (addBraces || elseExpression == null) {
newStatement.append('}');
}
replaceStatement(newStatement.toString(), statement);
}
}
@Nullable
private static PsiExpression createDefaultValue(
JavaChangeInfo changeInfo,
final PsiElementFactory factory,
final JavaParameterInfo info,
final PsiExpressionList list)
throws IncorrectOperationException {
if (info.isUseAnySingleVariable()) {
final PsiResolveHelper resolveHelper =
JavaPsiFacade.getInstance(list.getProject()).getResolveHelper();
final PsiType type = info.getTypeWrapper().getType(changeInfo.getMethod(), list.getManager());
final VariablesProcessor processor =
new VariablesProcessor(false) {
protected boolean check(PsiVariable var, ResolveState state) {
if (var instanceof PsiField
&& !resolveHelper.isAccessible((PsiField) var, list, null)) return false;
if (var instanceof PsiLocalVariable
&& list.getTextRange().getStartOffset() <= var.getTextRange().getStartOffset())
return false;
if (PsiTreeUtil.isAncestor(var, list, false)) return false;
final PsiType varType = state.get(PsiSubstitutor.KEY).substitute(var.getType());
return type.isAssignableFrom(varType);
}
public boolean execute(PsiElement pe, ResolveState state) {
super.execute(pe, state);
return size() < 2;
}
};
PsiScopesUtil.treeWalkUp(processor, list, null);
if (processor.size() == 1) {
final PsiVariable result = processor.getResult(0);
return factory.createExpressionFromText(result.getName(), list);
}
if (processor.size() == 0) {
final PsiClass parentClass = PsiTreeUtil.getParentOfType(list, PsiClass.class);
if (parentClass != null) {
PsiClass containingClass = parentClass;
final Set<PsiClass> containingClasses = new HashSet<PsiClass>();
while (containingClass != null) {
if (type.isAssignableFrom(factory.createType(containingClass, PsiSubstitutor.EMPTY))) {
containingClasses.add(containingClass);
}
containingClass = PsiTreeUtil.getParentOfType(containingClass, PsiClass.class);
}
if (containingClasses.size() == 1) {
return RefactoringUtil.createThisExpression(
parentClass.getManager(),
containingClasses.contains(parentClass)
? null
: containingClasses.iterator().next());
}
}
}
}
final PsiCallExpression callExpression =
PsiTreeUtil.getParentOfType(list, PsiCallExpression.class);
final String defaultValue = info.getDefaultValue();
return callExpression != null
? info.getValue(callExpression)
: defaultValue.length() > 0 ? factory.createExpressionFromText(defaultValue, list) : null;
}
private void correctMethodCall(
final PsiMethodCallExpression expression, final boolean isInternalCall) {
try {
final PsiManager manager = myMethod.getManager();
PsiReferenceExpression methodExpression = expression.getMethodExpression();
if (!methodExpression.isReferenceTo(myMethod)) return;
final PsiExpression oldQualifier = methodExpression.getQualifierExpression();
PsiExpression newQualifier = null;
final PsiClass classReferencedByThis =
MoveInstanceMembersUtil.getClassReferencedByThis(methodExpression);
if (myTargetVariable instanceof PsiParameter) {
final int index =
myMethod.getParameterList().getParameterIndex((PsiParameter) myTargetVariable);
final PsiExpression[] arguments = expression.getArgumentList().getExpressions();
if (index < arguments.length) {
newQualifier = (PsiExpression) arguments[index].copy();
arguments[index].delete();
}
} else {
VisibilityUtil.escalateVisibility((PsiField) myTargetVariable, expression);
String newQualifierName = myTargetVariable.getName();
if (myTargetVariable instanceof PsiField && oldQualifier != null) {
final PsiClass aClass = PsiUtil.resolveClassInClassTypeOnly(oldQualifier.getType());
if (aClass == ((PsiField) myTargetVariable).getContainingClass()) {
newQualifierName = oldQualifier.getText() + "." + newQualifierName;
}
}
newQualifier =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText(newQualifierName, null);
}
PsiExpression newArgument = null;
if (classReferencedByThis != null) {
@NonNls String thisArgumentText = null;
if (manager.areElementsEquivalent(myMethod.getContainingClass(), classReferencedByThis)) {
if (myOldClassParameterNames.containsKey(myMethod.getContainingClass())) {
thisArgumentText = "this";
}
} else {
thisArgumentText = classReferencedByThis.getName() + ".this";
}
if (thisArgumentText != null) {
newArgument =
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText(thisArgumentText, null);
}
} else {
if (!isInternalCall && oldQualifier != null) {
final PsiType type = oldQualifier.getType();
if (type instanceof PsiClassType) {
final PsiClass resolved = ((PsiClassType) type).resolve();
if (resolved != null && getParameterNameToCreate(resolved) != null) {
newArgument =
replaceRefsToTargetVariable(
oldQualifier); // replace is needed in case old qualifier is e.g. the same as
// field as target variable
}
}
}
}
if (newArgument != null) {
expression.getArgumentList().add(newArgument);
}
if (newQualifier != null) {
if (newQualifier instanceof PsiThisExpression
&& ((PsiThisExpression) newQualifier).getQualifier() == null) {
// Remove now redundant 'this' qualifier
if (oldQualifier != null) oldQualifier.delete();
} else {
final PsiReferenceExpression refExpr =
(PsiReferenceExpression)
JavaPsiFacade.getInstance(manager.getProject())
.getElementFactory()
.createExpressionFromText("q." + myMethod.getName(), null);
refExpr.getQualifierExpression().replace(newQualifier);
methodExpression.replace(refExpr);
}
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
