Enhancements

• Support of Java 15 ! 🚀

• Support of Text blocks

• Support of new switch rules and yield statements

• Improve throws rendering (From @jhaber: #384)

// Input

void throwException7(String string1, String string2, String string3, String string4) throws RuntimeException {
  throw new RuntimeException();
}

// Prettier 0.8.3

void throwException7(
  String string1,
  String string2,
  String string3,
  String string4
)
  throws RuntimeException {
  throw new RuntimeException();
}

// Prettier 1.0.0

void throwException7(
  String string1,
  String string2,
  String string3,
  String string4
) throws RuntimeException {
  throw new RuntimeException();
}

Fixes

• Parsing of unannPrimitiveType in primary (#421)

Miscellaneous

• Update dependencies

Changelog v0.8.1

Enhancements

• Generated a type definition for the Java parser (#422)

Fixes

• Wrong indent in some chained methods invocation (#404)

// Input
class Indent {

  void indetMethod() {
    assertThat(
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
    );

    assertThat(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      )
      .isEqualTo();

    assertThat(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      )
      .isEqualTo()
      .anotherInvocation(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      );

    myInstanceObject
      .assertThat(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      )
      .isEqualTo();


  }
}

// Output
class Indent {

  void indetMethod() {
    assertThat(
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
    );

    assertThat(
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
    )
      .isEqualTo();

    assertThat(
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
      useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
    )
      .isEqualTo()
      .anotherInvocation(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa,
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      );

    myInstanceObject
      .assertThat(
        useraaaaaaaaaaojzapjzpozjapjzpoajzpozaaaaaaaaaaaMapperlaaaaaaaaaaaaaaaaaaaaaaaa
      )
      .isEqualTo();
  }
}

• Parsing of unannPrimitiveType in primary (#421)

// Throws in Prettier 0.8.0
double[][]::new

// Prettier 0.9.0
double[][]::new

Changelog - v0.8.0

Enhancements

• Possibility to run the Prettier Java package on every entrypoint defined in the following list (#395):

  [
    "variableInitializerList",
    "block",
    "blockStatements",
    "blockStatement",
    "localVariableDeclarationStatement",
    "localVariableDeclaration",
    "localVariableType",
    "statement",
    "statementWithoutTrailingSubstatement",
    "emptyStatement",
    "labeledStatement",
    "expressionStatement",
    "statementExpression",
    "ifStatement",
    "assertStatement",
    "switchStatement",
    "switchBlock",
    "switchCase",
    "switchLabel",
    "enumConstantName",
    "whileStatement",
    "doStatement",
    "forStatement",
    "basicForStatement",
    "forInit",
    "forUpdate",
    "statementExpressionList",
    "enhancedForStatement",
    "breakStatement",
    "continueStatement",
    "returnStatement",
    "throwStatement",
    "synchronizedStatement",
    "tryStatement",
    "catches",
    "catchClause",
    "catchFormalParameter",
    "catchType",
    "finally",
    "tryWithResourcesStatement",
    "resourceSpecification",
    "resourceList",
    "resource",
    "resourceInit",
    "variableAccess",
    "isBasicForStatement",
    "isLocalVariableDeclaration",
    "classDeclaration",
    "normalClassDeclaration",
    "classModifier",
    "typeParameters",
    "typeParameterList",
    "superclass",
    "superinterfaces",
    "interfaceTypeList",
    "classBody",
    "classBodyDeclaration",
    "classMemberDeclaration",
    "fieldDeclaration",
    "fieldModifier",
    "variableDeclaratorList",
    "variableDeclarator",
    "variableDeclaratorId",
    "variableInitializer",
    "unannType",
    "unannPrimitiveType",
    "unannReferenceType",
    "unannClassOrInterfaceType",
    "unannClassType",
    "unannInterfaceType",
    "unannTypeVariable",
    "methodDeclaration",
    "methodModifier",
    "methodHeader",
    "result",
    "methodDeclarator",
    "receiverParameter",
    "formalParameterList",
    "formalParameter",
    "variableParaRegularParameter",
    "variableArityParameter",
    "variableModifier",
    "throws",
    "exceptionTypeList",
    "exceptionType",
    "methodBody",
    "instanceInitializer",
    "staticInitializer",
    "constructorDeclaration",
    "constructorModifier",
    "constructorDeclarator",
    "simpleTypeName",
    "constructorBody",
    "explicitConstructorInvocation",
    "unqualifiedExplicitConstructorInvocation",
    "qualifiedExplicitConstructorInvocation",
    "enumDeclaration",
    "enumBody",
    "enumConstantList",
    "enumConstant",
    "enumConstantModifier",
    "enumBodyDeclarations",
    "isClassDeclaration",
    "identifyClassBodyDeclarationType",
    "isDims",
    "constantExpression",
    "expression",
    "lambdaExpression",
    "lambdaParameters",
    "lambdaParametersWithBraces",
    "lambdaParameterList",
    "inferredLambdaParameterList",
    "explicitLambdaParameterList",
    "lambdaParameter",
    "regularLambdaParameter",
    "lambdaParameterType",
    "lambdaBody",
    "ternaryExpression",
    "binaryExpression",
    "unaryExpression",
    "unaryExpressionNotPlusMinus",
    "primary",
    "primaryPrefix",
    "primarySuffix",
    "fqnOrRefType",
    "fqnOrRefTypePartRest",
    "fqnOrRefTypePartCommon",
    "fqnOrRefTypePartFirst",
    "parenthesisExpression",
    "castExpression",
    "primitiveCastExpression",
    "referenceTypeCastExpression",
    "newExpression",
    "unqualifiedClassInstanceCreationExpression",
    "classOrInterfaceTypeToInstantiate",
    "typeArgumentsOrDiamond",
    "diamond",
    "methodInvocationSuffix",
    "argumentList",
    "arrayCreationExpression",
    "arrayCreationDefaultInitSuffix",
    "arrayCreationExplicitInitSuffix",
    "dimExprs",
    "dimExpr",
    "classLiteralSuffix",
    "arrayAccessSuffix",
    "methodReferenceSuffix",
    "identifyNewExpressionType",
    "isLambdaExpression",
    "isCastExpression",
    "isPrimitiveCastExpression",
    "isReferenceTypeCastExpression",
    "isRefTypeInMethodRef",
    "interfaceDeclaration",
    "normalInterfaceDeclaration",
    "interfaceModifier",
    "extendsInterfaces",
    "interfaceBody",
    "interfaceMemberDeclaration",
    "constantDeclaration",
    "constantModifier",
    "interfaceMethodDeclaration",
    "interfaceMethodModifier",
    "annotationTypeDeclaration",
    "annotationTypeBody",
    "annotationTypeMemberDeclaration",
    "annotationTypeElementDeclaration",
    "annotationTypeElementModifier",
    "defaultValue",
    "annotation",
    "elementValuePairList",
    "elementValuePair",
    "elementValue",
    "elementValueArrayInitializer",
    "elementValueList",
    "identifyInterfaceBodyDeclarationType",
    "identifyAnnotationBodyDeclarationType",
    "isSimpleElementValueAnnotation",
    "literal",
    "integerLiteral",
    "floatingPointLiteral",
    "booleanLiteral",
    "moduleName",
    "packageName",
    "typeName",
    "expressionName",
    "methodName",
    "packageOrTypeName",
    "ambiguousName",
    "compilationUnit",
    "ordinaryCompilationUnit",
    "modularCompilationUnit",
    "packageDeclaration",
    "packageModifier",
    "importDeclaration",
    "typeDeclaration",
    "moduleDeclaration",
    "moduleDirective",
    "requiresModuleDirective",
    "exportsModuleDirective",
    "opensModuleDirective",
    "usesModuleDirective",
    "providesModuleDirective",
    "requiresModifier",
    "isModuleCompilationUnit",
    "primitiveType",
    "numericType",
    "integralType",
    "floatingPointType",
    "referenceType",
    "classOrInterfaceType",
    "classType",
    "interfaceType",
    "typeVariable",
    "dims",
    "typeParameter",
    "typeParameterModifier",
    "typeBound",
    "additionalBound",
    "typeArguments",
    "typeArgumentList",
    "typeArgument",
    "wildcard",
    "wildcardBounds"
  ]
  

Fixes

Re-Writer

• Fix formatting of empty enums to not insert commas when trailing-comma is enabled #385)

  // Input
  public enum Enum {
  }
  
  // Prettier v0.7.1
  public enum Enum {
    ,
  }
  
  // Prettier v0.8.0
  public enum Enum {}
  

• Fix formatting of enum with comments #385)

Miscellaneous

• Update prettier dependency to 2.0.5 (#379) & (#400)
• Binary artefacts creation for each release (#399)
• Document Maven plugin (#394)

Latest v0.7.1

Fixes

Re-Writer

• Fix stable formatting for fields and methods with annotations (#369)

Miscellaneous

• Update prettier dependency to 1.19.1 (#370)

CHANGELOG v0.7.0

Enhancements

Re-Writer

• Add support for trailing commas option (#354)

  For enumerations:

  // Input
  public enum Enum {
    ONE, TWO, THREE
  }
  
  // Output
  public enum Enum {
    ONE,
    TWO,
    THREE,
  }
  

  For arrays:

  // Input
  public class T {
    void t() {
      int[] ints = { 1, 2, 3, };
      int[] ints = { aVeryLongArrayValue, anotherVeryLongArrayValue, andYetAnotherVeryLongArrayValue };
    }
  }
  
  // Output
  public class T {
    void t() {
      int[] ints = { 1, 2, 3 };
      int[] ints = {
        aVeryLongArrayValue,
        anotherVeryLongArrayValue,
        andYetAnotherVeryLongArrayValue,
      };
    }
  }
  

• By default, remove trailing comma in arrays (#354)

  // Input
  public class T {
    void t() {
      int[] ints = { 1, 2, 3, };
    }
  }
  
  // Output
  public class T {
    void t() {
      int[] ints = { 1, 2, 3 };
    }
  }
  

• Allow blank lines in enumerations' constant list (#350)

  // Input
  public enum OtherEnum {
    ONE, TWO,
  
    THREE,
  
  
  
    FOUR,
    /* Five */
    FIVE,
  
    /* Six */
    SIX
  
  
  }
  
  // Output
  public enum OtherEnum {
    ONE,
    TWO,
  
    THREE,
  
    FOUR,
    /* Five */
    FIVE,
  
    /* Six */
    SIX
  }
  

• Always add a blank line between an enumeration's constants and declarations (#351)

  // This input
  public enum EnumWithExtraCommaAndEnumBodyDeclarations {
    THIS_IS_GOOD("abc"),
    THIS_IS_FINE("abc");
    public static final String thisWillBeDeleted = "DELETED";
  }
  
  // will be formatted to this output
  public enum EnumWithExtraCommaAndEnumBodyDeclarations {
    THIS_IS_GOOD("abc"),
    THIS_IS_FINE("abc");
  
    public static final String thisWillBeDeleted = "DELETED";
  }
  

Fixes

Re-Writer

• Fix blank lines with empty statements (#360)

  // Input
  public class Test {
    public TestField testField;;
  
    @Override
    public void someMethod() {}
  }
  
  // Output (v0.6.0)
  public class Test {
    public TestField testField;
    @Override
    public void someMethod() {}
  }
  
  // Output (v0.7.0)
  public class Test {
    public TestField testField;
  
    @Override
    public void someMethod() {}
  }
  

• Fix line wrapping in switch statements (#359)

  // Input
  public String shouldWrapEvenForSmallSwitchCases() {
    switch (answer) { case "YES": return "YES"; default: return "NO"; }
  }
  // Output (v0.6.0)
  public String shouldWrapEvenForSmallSwitchCases() {
    switch (answer) { case "YES": return "YES"; default: return "NO"; }
  }
  
  // Output (v0.7.0)
  public String shouldWrapEvenForSmallSwitchCases() {
    switch (answer) {
      case "YES":
        return "YES";
      default:
        return "NO";
    }
  }
  

• Fix stable reformating of comments in binary expression (#353)

  // Input
  public boolean binaryOperationWithComments() {
    boolean a = one || two >> 1 // one
      // two
      // three
      || // five
      // four
      three;
  
    boolean b = one || two >> 1 // one
      // two
      // three
      ||
      three;
  
    boolean c = one || two >> 1 // one
      // two
      // three
      || three;
  
    return a || b || c;
  }
  
  // Output (v0.6.0)
  public boolean binaryOperationWithComments() {
    boolean a =
      one ||
      two >> 1 // two // one
      // three
      || // five
      // four
      three;
  
    boolean b =
      one ||
      two >> 1 // two // one
      // three
      ||
      three;
  
    boolean c =
      one ||
      two >> 1 // two // one
      // three
      ||
      three;
  
    return a || b || c;
  }
  
  // Output (v0.7.0)
  public boolean binaryOperationWithComments() {
    boolean a =
      one ||
      two >> 1 || // one
      // five
      // two
      // three
      // four
      three;
  
    boolean b =
      one ||
      two >> 1 || // one
      // two
      // three
      three;
  
    boolean c =
      one ||
      two >> 1 || // one
      // two
      // three
      three;
  
    return a || b || c;
  }
  

• Fix comments indentation when they are at the end of a block: indent the comments based on the block they are in (#345)

  // Input
  public class T {
    int i;
    // comment
  }
  
  // Output (v0.6.0)
  public class T {
    int i;
  // comment
  }
  
  // Output (v0.7.0)
  public class T {
    int i;
    // comment
  }
  

• Fix respect of blank lines with comments (#348)

  // Input
  void t() {
    int i;
    // comment
    int j;
  }
  
  // Output (v0.6.0)
  void t() {
    int i;
  
    // comment
    int j;
  }
  
  // Output (v0.7.0)
  void t() {
    int i;
    // comment
    int j;
  }