Examples of com.google.javascript.rhino.jstype.EnumType

Package com.google.javascript.rhino.jstype

Examples of com.google.javascript.rhino.jstype.EnumType

com.google.javascript.rhino.jstype.EnumType
An enum type representing a branded collection of elements. Each element is referenced by its name, and has an {@link EnumElementType} type.

    private EnumType createEnumTypeFromNodes(Node rValue, String name,
        JSDocInfo info, Node lValueNode) {
      Preconditions.checkNotNull(info);
      Preconditions.checkState(info.hasEnumParameterType());


      EnumType enumType = null;
      if (rValue != null && rValue.isQualifiedName()) {
        // Handle an aliased enum.
        Var var = scope.getVar(rValue.getQualifiedName());
        if (var != null && var.getType() instanceof EnumType) {
          enumType = (EnumType) var.getType();
        }
      }


      if (enumType == null) {
        JSType elementsType =
            info.getEnumParameterType().evaluate(scope, typeRegistry);
        enumType = typeRegistry.createEnumType(name, rValue, elementsType);


        if (rValue != null && rValue.isObjectLit()) {
          // collect enum elements
          Node key = rValue.getFirstChild();
          while (key != null) {
            String keyName = NodeUtil.getStringValue(key);
            if (keyName == null) {
              // GET and SET don't have a String value;
              compiler.report(
                  JSError.make(key, ENUM_NOT_CONSTANT, keyName));
            } else if (!codingConvention.isValidEnumKey(keyName)) {
              compiler.report(
                  JSError.make(key, ENUM_NOT_CONSTANT, keyName));
            } else {
              enumType.defineElement(keyName, key);
            }
            key = key.getNext();
          }
        }
      }


      if (name != null && scope.isGlobal()) {
        typeRegistry.declareType(name, enumType.getElementsType());
      }


      return enumType;
    }

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    JSType valueType = getJSType(value);
    if (!valueType.isEnumType()) {
      return;
    }


    EnumType valueEnumType = valueType.toMaybeEnumType();
    JSType valueEnumPrimitiveType =
        valueEnumType.getElementsType().getPrimitiveType();
    validator.expectCanAssignTo(t, value, valueEnumPrimitiveType,
        declInfo.getEnumParameterType().evaluate(t.getScope(), typeRegistry),
        "incompatible enum element types");
  }

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      // TODO(user): Remove the instanceof check in favor
      // of a type.isEnumType() predicate. Currently, not all enum types are
      // implemented by the EnumClass, e.g. the unknown type and the any
      // type. The types need to be defined by interfaces such that an
      // implementation can implement multiple types interface.
      EnumType valueEnumType = (EnumType) value.getJSType();
      JSType valueEnumPrimitiveType =
          valueEnumType.getElementsType().getPrimitiveType();
      validator.expectCanAssignTo(t, value, valueEnumPrimitiveType,
          primitiveType, "incompatible enum element types");
    } else {
      // The error condition is handled in TypedScopeCreator.
    }

View Full Code Here

    private EnumType createEnumTypeFromNodes(Node rValue, String name,
        JSDocInfo info, Node lValueNode) {
      Preconditions.checkNotNull(info);
      Preconditions.checkState(info.hasEnumParameterType());


      EnumType enumType = null;
      if (rValue != null && rValue.isQualifiedName()) {
        // Handle an aliased enum.
        Var var = scope.getVar(rValue.getQualifiedName());
        if (var != null && var.getType() instanceof EnumType) {
          enumType = (EnumType) var.getType();
        }
      }


      if (enumType == null) {
        JSType elementsType =
            info.getEnumParameterType().evaluate(scope, typeRegistry);
        enumType = typeRegistry.createEnumType(name, elementsType);


        if (rValue != null && rValue.getType() == Token.OBJECTLIT) {
          // collect enum elements
          Node key = rValue.getFirstChild();
          while (key != null) {
            String keyName = NodeUtil.getStringValue(key);
            if (keyName == null) {
              // GET and SET don't have a String value;
              compiler.report(
                  JSError.make(sourceName, key, ENUM_NOT_CONSTANT, keyName));
            } else if (enumType.hasOwnProperty(keyName)) {
              compiler.report(JSError.make(sourceName, key, ENUM_DUP, keyName));
            } else if (!codingConvention.isValidEnumKey(keyName)) {
              compiler.report(
                  JSError.make(sourceName, key, ENUM_NOT_CONSTANT, keyName));
            } else {
              enumType.defineElement(keyName, key);
            }
            key = key.getNext();
          }
        }
      }


      if (name != null && scope.isGlobal()) {
        typeRegistry.declareType(name, enumType.getElementsType());
      }


      return enumType;
    }

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Related Classes of com.google.javascript.rhino.jstype.EnumType

com.google.javascript.jscomp.TypeCheck

com.google.javascript.jscomp.TypedScopeCreator$AbstractScopeBuilder

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