org.mozilla.javascript.ast

Class KeywordLiteral

java.lang.Object

org.mozilla.javascript.Node

org.mozilla.javascript.ast.AstNode

org.mozilla.javascript.ast.KeywordLiteral

All Implemented Interfaces:

java.lang.Comparable<AstNode>, java.lang.Iterable<Node>

public class KeywordLiteral
extends AstNode

AST node for keyword literals: currently, this, null, true, false, and debugger. Node type is one of Token.THIS, Token.NULL, Token.TRUE, Token.FALSE, or Token.DEBUGGER.

Nested Class Summary

Nested classes/interfaces inherited from class org.mozilla.javascript.ast.AstNode

AstNode.PositionComparator

Nested classes/interfaces inherited from class org.mozilla.javascript.Node

Node.NodeIterator

Field Summary

Fields inherited from class org.mozilla.javascript.Node

ATTRIBUTE_FLAG, BOTH, CASEARRAY_PROP, CATCH_SCOPE_PROP, CONTROL_BLOCK_PROP, DECR_FLAG, DESCENDANTS_FLAG, DESTRUCTURING_ARRAY_LENGTH, DESTRUCTURING_NAMES, DESTRUCTURING_PARAMS, DESTRUCTURING_SHORTHAND, DIRECTCALL_PROP, END_DROPS_OFF, END_RETURNS, END_RETURNS_VALUE, END_UNREACHED, END_YIELDS, EXPRESSION_CLOSURE_PROP, FUNCTION_PROP, GENERATOR_END_PROP, INCRDECR_PROP, ISNUMBER_PROP, JSDOC_PROP, LABEL_ID_PROP, LAST_PROP, LEFT, LOCAL_BLOCK_PROP, LOCAL_PROP, MEMBER_TYPE_PROP, NAME_PROP, NON_SPECIALCALL, OBJECT_IDS_PROP, PARENTHESIZED_PROP, POST_FLAG, PROPERTY_FLAG, REGEXP_PROP, RIGHT, SKIP_INDEXES_PROP, SPECIALCALL_EVAL, SPECIALCALL_PROP, SPECIALCALL_WITH, TARGETBLOCK_PROP, VARIABLE_PROP

Constructor Summary

Constructors

Constructor and Description
KeywordLiteral()
KeywordLiteral(int pos)
KeywordLiteral(int pos, int len)
KeywordLiteral(int pos, int len, int nodeType) Constructs a new KeywordLiteral

Method Summary

Modifier and Type	Method and Description
boolean	isBooleanLiteral() Returns true if the token type is Token.TRUE or Token.FALSE.
KeywordLiteral	setType(int nodeType) Sets node token type
java.lang.String	toSource(int depth) Emits source code for this node.
void	visit(NodeVisitor v) Visits this node.

Methods inherited from class org.mozilla.javascript.ast.AstNode

addChild, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getLength, getLineno, getParent, getPosition, hasSideEffects, makeIndent, operatorToString, setBounds, setLength, setParent, setPosition, setRelative, shortName, toSource

Methods inherited from class org.mozilla.javascript.Node

addChildAfter, addChildBefore, addChildrenToBack, addChildrenToFront, addChildToBack, addChildToFront, getChildBefore, getDouble, getExistingIntProp, getFirstChild, getIntProp, getJsDoc, getJsDocNode, getLastChild, getLastSibling, getNext, getProp, getScope, getString, getType, hasChildren, hasConsistentReturnUsage, iterator, labelId, labelId, newNumber, newString, newString, newTarget, putIntProp, putProp, removeChild, removeChildren, removeProp, replaceChild, replaceChildAfter, resetTargets, setDouble, setJsDocNode, setLineno, setScope, setString, toString, toStringTree

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

KeywordLiteral

public KeywordLiteral()

KeywordLiteral

public KeywordLiteral(int pos)

KeywordLiteral

public KeywordLiteral(int pos,
                      int len)

KeywordLiteral

public KeywordLiteral(int pos,
                      int len,
                      int nodeType)

Constructs a new KeywordLiteral

Parameters:

nodeType - the token type

Method Detail

setType

public KeywordLiteral setType(int nodeType)

Sets node token type

Overrides:

setType in class Node

Throws:

java.lang.IllegalArgumentException - if nodeType is unsupported

isBooleanLiteral

public boolean isBooleanLiteral()

Returns true if the token type is Token.TRUE or Token.FALSE.

toSource

public java.lang.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. There are no children to visit.

Specified by:

visit in class AstNode

Parameters:

v - the object to call with this node and its children