Package org.mozilla.javascript.ast

Class ObjectLiteral

  • All Implemented Interfaces:
    Comparable<AstNode>, Iterable<Node>, DestructuringForm
    public class ObjectLiteral
extends AstNode
implements DestructuringForm
    AST node for an Object literal (also called an Object initialiser in Ecma-262). The elements list will always be non-null, although the list will have no elements if the Object literal is empty.

    Node type is Token.OBJECTLIT.

    ObjectLiteral :
       {}
       { PropertyNameAndValueList }
 PropertyNameAndValueList :
       PropertyName : AssignmentExpression
       PropertyNameAndValueList , PropertyName : AssignmentExpression
 PropertyName :
       Identifier
       StringLiteral
       NumericLiteral

    • Constructor Detail

      • ObjectLiteral

        public ObjectLiteral()

      • ObjectLiteral

        public ObjectLiteral​(int pos)

      • ObjectLiteral

        public ObjectLiteral​(int pos,
                     int len)

    • Method Detail

      • getElements

        public List<ObjectProperty> getElements()
        Returns the element list. Returns an immutable empty list if there are no elements.

      • setElements

        public void setElements​(List<ObjectProperty> elements)
        Sets the element list, and updates the parent of each element. Replaces any existing elements.
        Parameters:
        elements - the element list. Can be null.

      • addElement

        public void addElement​(ObjectProperty element)
        Adds an element to the list, and sets its parent to this node.
        Parameters:
        element - the property node to append to the end of the list
        Throws:
        IllegalArgumentException - } if element is null

      • setIsDestructuring

        public void setIsDestructuring​(boolean destructuring)
        Marks this node as being a destructuring form - that is, appearing in a context such as for ([a, b] in ...) where it's the target of a destructuring assignment.
        Specified by:
        setIsDestructuring in interface DestructuringForm

      • isDestructuring

        public boolean isDestructuring()
        Returns true if this node is in a destructuring position: a function parameter, the target of a variable initializer, the iterator of a for..in loop, etc.
        Specified by:
        isDestructuring in interface DestructuringForm

      • toSource

        public String toSource​(int depth)
        Description copied from class: AstNode
        Emits source code for this node. Callee is responsible for calling this function recursively on children, incrementing indent as appropriate.

        Note: if the parser was in error-recovery mode, some AST nodes may have null children that are expected to be non-null when no errors are present. In this situation, the behavior of the toSource method is undefined: toSource implementations may assume that the AST node is error-free, since it is intended to be invoked only at runtime after a successful parse.

        Specified by:
        toSource in class AstNode
        Parameters:
        depth - the current recursion depth, typically beginning at 0 when called on the root node.

      • visit

        public void visit​(NodeVisitor v)
        Visits this node, then visits each child property node, in lexical (source) order.
        Specified by:
        visit in class AstNode
        Parameters:
        v - the object to call with this node and its children