Exemplo n.º 1
0
 @Nullable
 public static String getEnumConstantName(@NotNull ObjectReference objRef, ClassType classType) {
   do {
     if (!classType.isPrepared()) {
       return null;
     }
     classType = classType.superclass();
     if (classType == null) {
       return null;
     }
   } while (!(CommonClassNames.JAVA_LANG_ENUM.equals(classType.name())));
   //noinspection HardCodedStringLiteral
   final Field field = classType.fieldByName("name");
   if (field == null) {
     return null;
   }
   final Value value = objRef.getValue(field);
   if (!(value instanceof StringReference)) {
     return null;
   }
   return ((StringReference) value).value();
 }
  public static PsiMethod generateConstructorPrototype(
      PsiClass aClass, PsiMethod baseConstructor, boolean copyJavaDoc, PsiField[] fields)
      throws IncorrectOperationException {
    PsiManager manager = aClass.getManager();
    JVMElementFactory factory =
        JVMElementFactories.requireFactory(aClass.getLanguage(), aClass.getProject());
    CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(manager.getProject());

    PsiMethod constructor = factory.createConstructor(aClass.getName(), aClass);
    String modifier = PsiUtil.getMaximumModifierForMember(aClass, false);

    if (modifier != null) {
      PsiUtil.setModifierProperty(constructor, modifier, true);
    }

    if (baseConstructor != null) {
      PsiJavaCodeReferenceElement[] throwRefs =
          baseConstructor.getThrowsList().getReferenceElements();
      for (PsiJavaCodeReferenceElement ref : throwRefs) {
        constructor.getThrowsList().add(ref);
      }

      if (copyJavaDoc) {
        final PsiDocComment docComment =
            ((PsiMethod) baseConstructor.getNavigationElement()).getDocComment();
        if (docComment != null) {
          constructor.addAfter(docComment, null);
        }
      }
    }

    boolean isNotEnum = false;
    if (baseConstructor != null) {
      PsiClass superClass = aClass.getSuperClass();
      LOG.assertTrue(superClass != null);
      if (!CommonClassNames.JAVA_LANG_ENUM.equals(superClass.getQualifiedName())) {
        isNotEnum = true;
        if (baseConstructor instanceof PsiCompiledElement) { // to get some parameter names
          PsiClass dummyClass =
              JVMElementFactories.requireFactory(
                      baseConstructor.getLanguage(), baseConstructor.getProject())
                  .createClass("Dummy");
          baseConstructor = (PsiMethod) dummyClass.add(baseConstructor);
        }
        PsiParameter[] params = baseConstructor.getParameterList().getParameters();
        for (PsiParameter param : params) {
          PsiParameter newParam = factory.createParameter(param.getName(), param.getType(), aClass);
          GenerateMembersUtil.copyOrReplaceModifierList(param, newParam);
          constructor.getParameterList().add(newParam);
        }
      }
    }

    JavaCodeStyleManager javaStyle = JavaCodeStyleManager.getInstance(aClass.getProject());

    final PsiMethod dummyConstructor = factory.createConstructor(aClass.getName());
    dummyConstructor.getParameterList().replace(constructor.getParameterList().copy());
    List<PsiParameter> fieldParams = new ArrayList<PsiParameter>();
    for (PsiField field : fields) {
      String fieldName = field.getName();
      String name = javaStyle.variableNameToPropertyName(fieldName, VariableKind.FIELD);
      String parmName = javaStyle.propertyNameToVariableName(name, VariableKind.PARAMETER);
      parmName = javaStyle.suggestUniqueVariableName(parmName, dummyConstructor, true);
      PsiParameter parm = factory.createParameter(parmName, field.getType(), aClass);

      final NullableNotNullManager nullableManager =
          NullableNotNullManager.getInstance(field.getProject());
      final String notNull = nullableManager.getNotNull(field);
      if (notNull != null) {
        parm.getModifierList()
            .addAfter(factory.createAnnotationFromText("@" + notNull, field), null);
      }

      constructor.getParameterList().add(parm);
      dummyConstructor.getParameterList().add(parm.copy());
      fieldParams.add(parm);
    }

    ConstructorBodyGenerator generator =
        ConstructorBodyGenerator.INSTANCE.forLanguage(aClass.getLanguage());
    if (generator != null) {
      @NonNls StringBuilder buffer = new StringBuilder();
      generator.start(buffer, constructor.getName(), PsiParameter.EMPTY_ARRAY);
      if (isNotEnum) {
        generator.generateSuperCallIfNeeded(
            buffer, baseConstructor.getParameterList().getParameters());
      }
      generator.generateFieldInitialization(
          buffer, fields, fieldParams.toArray(new PsiParameter[fieldParams.size()]));
      generator.finish(buffer);
      PsiMethod stub = factory.createMethodFromText(buffer.toString(), aClass);
      constructor.getBody().replace(stub.getBody());
    }

    constructor = (PsiMethod) codeStyleManager.reformat(constructor);
    return constructor;
  }