private void replaceIteratorNext(
PsiElement element,
String contentVariableName,
String iteratorName,
PsiElement childToSkip,
StringBuilder out,
PsiType contentType) {
if (isIteratorNext(element, iteratorName, contentType)) {
out.append(contentVariableName);
} else {
final PsiElement[] children = element.getChildren();
if (children.length == 0) {
final String text = element.getText();
if (PsiKeyword.INSTANCEOF.equals(text) && out.charAt(out.length() - 1) != ' ') {
out.append(' ');
}
out.append(text);
} else {
boolean skippingWhiteSpace = false;
for (final PsiElement child : children) {
if (child.equals(childToSkip)) {
skippingWhiteSpace = true;
} else if (child instanceof PsiWhiteSpace && skippingWhiteSpace) {
// don't do anything
} else {
skippingWhiteSpace = false;
replaceIteratorNext(
child, contentVariableName, iteratorName, childToSkip, out, contentType);
}
}
}
}
}
private void replaceCollectionGetAccess(
PsiElement element,
String contentVariableName,
PsiVariable listVariable,
String indexName,
PsiElement childToSkip,
StringBuilder out) {
if (isListGetLookup(element, indexName, listVariable)) {
out.append(contentVariableName);
} else {
final PsiElement[] children = element.getChildren();
if (children.length == 0) {
final String text = element.getText();
if (PsiKeyword.INSTANCEOF.equals(text) && out.charAt(out.length() - 1) != ' ') {
out.append(' ');
}
out.append(text);
} else {
boolean skippingWhiteSpace = false;
for (final PsiElement child : children) {
if (child.equals(childToSkip)) {
skippingWhiteSpace = true;
} else if (child instanceof PsiWhiteSpace && skippingWhiteSpace) {
// don't do anything
} else {
skippingWhiteSpace = false;
replaceCollectionGetAccess(
child, contentVariableName, listVariable, indexName, childToSkip, out);
}
}
}
}
}
@NotNull
public static String shiftIndentInside(
@NotNull String initial, final int i, boolean shiftEmptyLines) {
StringBuilder result = new StringBuilder(initial.length());
List<byte[]> lines;
try {
LineReader reader =
new LineReader(new ByteArrayInputStream(initial.getBytes(CharsetToolkit.UTF8_CHARSET)));
lines = reader.readLines();
} catch (IOException e) {
throw new RuntimeException(e);
}
boolean first = true;
for (byte[] line : lines) {
try {
if (!first) result.append('\n');
if (line.length > 0 || shiftEmptyLines) {
StringUtil.repeatSymbol(result, ' ', i);
}
result.append(new String(line));
} finally {
first = false;
}
}
return result.toString();
}
@Override
public String variableNameToPropertyName(String name, VariableKind variableKind) {
if (variableKind == VariableKind.STATIC_FINAL_FIELD
|| variableKind == VariableKind.STATIC_FIELD && name.contains("_")) {
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if (c != '_') {
if (Character.isLowerCase(c)) {
return variableNameToPropertyNameInner(name, variableKind);
}
buffer.append(Character.toLowerCase(c));
continue;
}
//noinspection AssignmentToForLoopParameter
i++;
if (i < name.length()) {
c = name.charAt(i);
buffer.append(c);
}
}
return buffer.toString();
}
return variableNameToPropertyNameInner(name, variableKind);
}
private void suggestNamesFromGenericParameters(
final PsiType type,
final VariableKind variableKind,
final Collection<String> suggestions,
boolean correctKeywords) {
if (!(type instanceof PsiClassType)) {
return;
}
StringBuilder fullNameBuilder = new StringBuilder();
final PsiType[] parameters = ((PsiClassType) type).getParameters();
for (PsiType parameter : parameters) {
if (parameter instanceof PsiClassType) {
final String typeName = normalizeTypeName(getTypeName(parameter));
if (typeName != null) {
fullNameBuilder.append(typeName);
}
}
}
String baseName = normalizeTypeName(getTypeName(type));
if (baseName != null) {
fullNameBuilder.append(baseName);
ContainerUtil.addAll(
suggestions,
getSuggestionsByName(fullNameBuilder.toString(), variableKind, false, correctKeywords));
}
}
private static String constantValueToConstantName(final String[] names) {
final StringBuilder result = new StringBuilder();
for (int i = 0; i < names.length; i++) {
if (i > 0) result.append("_");
result.append(names[i]);
}
return result.toString();
}
@Override
public String propertyNameToVariableName(String propertyName, VariableKind variableKind) {
if (variableKind == VariableKind.STATIC_FINAL_FIELD) {
String[] words = NameUtil.nameToWords(propertyName);
StringBuilder buffer = new StringBuilder();
for (int i = 0; i < words.length; i++) {
String word = words[i];
if (i > 0) {
buffer.append("_");
}
buffer.append(StringUtil.toUpperCase(word));
}
return buffer.toString();
}
String prefix = getPrefixByVariableKind(variableKind);
String name = propertyName;
if (!name.isEmpty() && !prefix.isEmpty() && !StringUtil.endsWithChar(prefix, '_')) {
name = Character.toUpperCase(name.charAt(0)) + name.substring(1);
}
name = prefix + name + getSuffixByVariableKind(variableKind);
name = changeIfNotIdentifier(name);
return name;
}
@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();
}