Examples of com.google.javascript.rhino.JSTypeExpression

com.google.javascript.rhino.JSTypeExpression
Represents a type expression as a miniature Rhino AST, so that the type expression can be evaluated later. @author nicksantos@google.com (Nick Santos)

      Preconditions.checkNotNull(info, 
          "Missing JSDoc declaration for template function %s", fnName);
    }
    for (Node paramNode : templateParametersNode.children()) {
      String name = paramNode.getString();
      JSTypeExpression expression = info.getParameterType(name);
      Preconditions.checkNotNull(expression, 
          "Missing JSDoc for parameter %s of template function %s", 
          name, fnName);
      JSType type = expression.evaluate(null, compiler.getTypeRegistry());
      Preconditions.checkNotNull(type);
      params.add(name);
      paramTypes.put(name, type);
    }

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            memberDoc = new JSDocInfoBuilder(true);
          } else {
            memberDoc = JSDocInfoBuilder.copyFrom(info);
          }
          memberDoc.recordThisType(
              new JSTypeExpression(new Node(Token.BANG, new Node(Token.QMARK)),
              member.getSourceFileName()));
          info = memberDoc.build(assign);
        }
        if (info != null) {
          info.setAssociatedNode(assign);
          assign.setJSDocInfo(info);
        }


        Node newNode = NodeUtil.newExpr(assign);
        insertionPoint.getParent().addChildAfter(newNode, insertionPoint);
        insertionPoint = newNode;
      }
    }


    // Rewrite constructor
    if (constructor == null) {
      Node body = IR.block();
      if (!superClassName.isEmpty()) {
        Node superCall = baseCall(classNode, "constructor", null);
        body.addChildToBack(IR.exprResult(superCall));
      }
      Node name = anonymous
          ? IR.name("").srcref(className) : className.detachFromParent();
      constructor = IR.function(
          name,
          IR.paramList(),
          body).useSourceInfoIfMissingFromForTree(classNode);
    }
    JSDocInfo classJSDoc = classNode.getJSDocInfo();
    JSDocInfoBuilder newInfo = (classJSDoc != null) ?
        JSDocInfoBuilder.copyFrom(classJSDoc) :
        new JSDocInfoBuilder(true);


    newInfo.recordConstructor();
    if (!superClassName.isEmpty()) {


      if (newInfo.isInterfaceRecorded()) {
        newInfo.recordExtendedInterface(new JSTypeExpression(new Node(Token.BANG,
            IR.string(superClassString)),
            superClassName.getSourceFileName()));
      } else {
        Node inherits = IR.call(
            NodeUtil.newQName(compiler, INHERITS),
            NodeUtil.newQName(compiler, fullClassName),
            NodeUtil.newQName(compiler, superClassString));
        Node inheritsCall = IR.exprResult(inherits);
        inheritsCall.useSourceInfoIfMissingFromForTree(classNode);
        Node enclosingStatement = NodeUtil.getEnclosingStatement(classNode);
        enclosingStatement.getParent().addChildAfter(inheritsCall, enclosingStatement);
        newInfo.recordBaseType(new JSTypeExpression(new Node(Token.BANG,
            IR.string(superClassString)),
            superClassName.getSourceFileName()));


        Node copyProps = IR.call(
            NodeUtil.newQName(compiler, COPY_PROP),

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   * doc attached to function name
   */
  FunctionTypeBuilder inferReturnType(
      @Nullable JSDocInfo info, boolean fromInlineDoc) {
    if (info != null) {
      JSTypeExpression returnTypeExpr =
          fromInlineDoc ? info.getType() : info.getReturnType();
      if (returnTypeExpr != null) {
        returnType = returnTypeExpr.evaluate(scope, typeRegistry);
        returnTypeInferred = false;
      }
    }


    return this;

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    int lineno = stream.getLineno();
    int startCharno = stream.getCharno();
    Node typeAst = parseTypeExpression(token);
    recordTypeNode(lineno, startCharno, typeAst, token == JsDocToken.LEFT_CURLY);


    JSTypeExpression expr = createJSTypeExpression(typeAst);
    if (expr != null) {
      jsdocBuilder.recordType(expr);
      jsdocBuilder.recordInlineType();
      return retrieveAndResetParsedJSDocInfo();
    }

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  }


  private JsDocToken parseAnnotation(JsDocToken token,
      List<ExtendedTypeInfo> extendedTypes) {
    // JSTypes are represented as Rhino AST nodes, and then resolved later.
    JSTypeExpression type;
    int lineno = stream.getLineno();
    int charno = stream.getCharno();


    String annotationName = stream.getString();
    Annotation annotation = annotationNames.get(annotationName);

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   * Constructs a new {@code JSTypeExpression}.
   * @param n A node. May be null.
   */
  JSTypeExpression createJSTypeExpression(Node n) {
    return n == null ? null :
        new JSTypeExpression(n, getSourceName());
  }

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      List<JSTypeExpression> extendedInterfaces = null;
      if (classInfo.getExtendedInterfacesCount() > 0) {
        extendedInterfaces = classInfo.getExtendedInterfaces();
      } else if (ctorInfo.getExtendedInterfacesCount() == 0
          && superNode != null) {
        extendedInterfaces = ImmutableList.of(new JSTypeExpression(
            new Node(Token.BANG,
                IR.string(superNode.getQualifiedName())),
            VIRTUAL_FILE));
      }
      if (extendedInterfaces != null) {
        for (JSTypeExpression extend : extendedInterfaces) {
          mergedInfo.recordExtendedInterface(extend);
        }
      }
    } else {
      // @constructor by default
      mergedInfo.recordConstructor();
      if (classInfo.makesUnrestricted() || ctorInfo.makesUnrestricted()) {
        mergedInfo.recordUnrestricted();
      } else if (classInfo.makesDicts() || ctorInfo.makesDicts()) {
        mergedInfo.recordDict();
      } else {
        // @struct by default
        mergedInfo.recordStruct();
      }




      if (classInfo.getBaseType() != null) {
        mergedInfo.recordBaseType(classInfo.getBaseType());
      } else if (superNode != null) {
        // a "super" implies @extends, build a default.
        JSTypeExpression baseType = new JSTypeExpression(
            new Node(Token.BANG,
              IR.string(superNode.getQualifiedName())),
            VIRTUAL_FILE);
        mergedInfo.recordBaseType(baseType);
      }

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        }
      }
      // Case typedef
      JSDocInfo info = slot.getJSDocInfo();
      if (info != null && info.hasTypedefType()) {
        JSTypeExpression expr = info.getTypedefType();
        StaticScope<JSType> typedefScope = getScope(scope, name);
        return expr.evaluate(typedefScope, typeRegistry);
      }
    }
    // Otherwise handle native types
    return typeRegistry.getType(name);
  }

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    }
    return ((FunctionType) type).getInstanceType();
  }


  private JSType evalNativeTypeExpr(Node ttlAst) {
    return new JSTypeExpression(
        getCallArgument(ttlAst, 0), "").evaluate(scope, typeRegistry);
  }

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    assertEquals("/**@template T,U\n*/", JSDocInfoPrinter.print(info));
  }


  public void testParam() {
    builder.recordParameter("foo",
        new JSTypeExpression(JsDocInfoParser.parseTypeString("number"), ""));
    builder.recordParameter("bar",
        new JSTypeExpression(JsDocInfoParser.parseTypeString("string"), ""));
    JSDocInfo info = builder.build(null);
    assertEquals("/**@param {number} foo @param {string} bar */",
        JSDocInfoPrinter.print(info));
    builder.recordParameter("foo",
        new JSTypeExpression(new Node(Token.EQUALS, IR.string("number")), ""));
    info = builder.build(null);
    assertEquals("/**@param {number=} foo */", JSDocInfoPrinter.print(info));
    builder.recordParameter("foo",
        new JSTypeExpression(new Node(Token.ELLIPSIS, IR.string("number")), ""));
    info = builder.build(null);
    assertEquals("/**@param {...number} foo */", JSDocInfoPrinter.print(info));
  }

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