Add default implementation to getRangeAffectingIndent()

and remove dummy implementations returning null.

json/src/com/intellij/json/formatter/JsonFormattingBuilderModel.java

@@ -24,12 +24,6 @@ public class JsonFormattingBuilderModel implements FormattingModelBuilder {
     return FormattingModelProvider.createFormattingModelForPsiFile(element.getContainingFile(), block, settings);
   }
 
-  @Nullable
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
-
   static SpacingBuilder createSpacingBuilder(CodeStyleSettings settings) {
     final JsonCodeStyleSettings jsonSettings = settings.getCustomSettings(JsonCodeStyleSettings.class);
     final CommonCodeStyleSettings commonSettings = settings.getCommonSettings(JsonLanguage.INSTANCE);

platform/lang-api/src/com/intellij/formatting/FormattingModelBuilder.java

@@ -32,7 +32,7 @@ import org.jetbrains.annotations.Nullable;
  * as the language's whitespace tokens. See {@link com.intellij.lang.ParserDefinition}
  *
  * @see com.intellij.lang.LanguageFormatting
- * @see FormattingModelProvider#createFormattingModelForPsiFile(com.intellij.psi.PsiFile, Block, com.intellij.psi.codeStyle.CodeStyleSettings)
+ * @see FormattingModelProvider#createFormattingModelForPsiFile(PsiFile, Block, CodeStyleSettings)
  */
 
 public interface FormattingModelBuilder {
@@ -58,5 +58,7 @@ public interface FormattingModelBuilder {
    * @return the range to reformat, or null if the default range should be used
    */
   @Nullable
-  TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset);
+  default TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
+    return null;
+  }
 }

platform/lang-impl/src/com/intellij/formatting/templateLanguages/TemplateLanguageFormattingModelBuilder.java

@@ -91,11 +91,6 @@ public abstract class TemplateLanguageFormattingModelBuilder implements Delegati
     };
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
-
   @Override
   public boolean dontFormatMyModel() {
     return true;

platform/lang-impl/src/com/intellij/psi/templateLanguages/SimpleTemplateLanguageFormattingModelBuilder.java

@@ -68,8 +68,4 @@ public class SimpleTemplateLanguageFormattingModelBuilder implements FormattingM
     }, element.getProject(), settings, file.getFileType(), file);
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(final PsiFile file, final int offset, final ASTNode elementAtOffset) {
-    return null;
-  }
 }

plugins/groovy/src/org/jetbrains/plugins/groovy/formatter/GroovyFormattingModelBuilder.java

@@ -68,12 +68,6 @@ public class GroovyFormattingModelBuilder implements FormattingModelBuilder {
     }
   }
 
-  @Override
-  @Nullable
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
-
   /**
    * Standard {@link PsiBasedFormattingModel} extension that handles the fact that groovy uses not single white space token type
    * ({@link TokenType#WHITE_SPACE}) but one additional token type as well: {@link GroovyTokenTypes#mNLS}. So, it allows to adjust

plugins/properties/src/com/intellij/lang/properties/formatting/PropertiesFormattingModelBuilder.java

@@ -41,9 +41,4 @@ public class PropertiesFormattingModelBuilder implements FormattingModelBuilder
     return new PsiBasedFormattingModel(element.getContainingFile(), new PropertiesRootBlock(root, settings), documentModel);
   }
 
-  @Nullable
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
 }

python/src/com/jetbrains/python/formatter/PythonFormattingModelBuilder.java

@@ -167,11 +167,6 @@ public class PythonFormattingModelBuilder implements FormattingModelBuilderEx, C
     return TokenSet.create(IElementType.enumerate(type -> type != LAMBDA_KEYWORD && type.getLanguage().isKindOf(pythonLanguage)));
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
-
   private static void printAST(ASTNode node, int indent) {
     while (node != null) {
       for (int i = 0; i < indent; i++) {

xml/impl/src/com/intellij/lang/html/HtmlFormattingModelBuilder.java

@@ -45,8 +45,4 @@ public class HtmlFormattingModelBuilder implements FormattingModelBuilder {
                                                            documentModel);
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
 }

xml/impl/src/com/intellij/lang/xhtml/XhtmlFormattingModelBuilder.java

@@ -46,8 +46,4 @@ public class XhtmlFormattingModelBuilder implements FormattingModelBuilder {
                                                             documentModel);
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
 }

xml/impl/src/com/intellij/lang/xml/XmlFormattingModelBuilder.java

@@ -48,8 +48,5 @@ public class XmlFormattingModelBuilder implements FormattingModelBuilder {
     return new XmlBlock(root, null, null, new XmlPolicy(settings, documentModel), null, null, false);
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    return null;
-  }
+
 }

xml/relaxng/src/org/intellij/plugins/relaxNG/compact/formatting/RncFormattingModelBuilder.java

@@ -33,9 +33,4 @@ public class RncFormattingModelBuilder implements FormattingModelBuilder {
     return FormattingModelProvider.createFormattingModelForPsiFile(element.getContainingFile(), new RncBlock(element.getNode()), settings);
   }
 
-  @Override
-  public TextRange getRangeAffectingIndent(PsiFile file, int offset, ASTNode elementAtOffset) {
-    // TODO
-    return null;
-  }
 }