Package org.mozilla.javascript.ast

Class VariableDeclaration

java.lang.Object

org.mozilla.javascript.Node

org.mozilla.javascript.ast.AstNode

org.mozilla.javascript.ast.VariableDeclaration

All Implemented Interfaces:

Comparable<AstNode>, Iterable<Node>

public class VariableDeclaration
extends AstNode

A list of one or more var, const or let declarations. Node type is Token.VAR, Token.CONST or Token.LET.

If the node is for var or const, the node position is the beginning of the var or const keyword. For let declarations, the node position coincides with the first VariableInitializer child.

A standalone variable declaration in a statement context returns true from its isStatement() method.

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	Description
VariableDeclaration()
VariableDeclaration(int pos)
VariableDeclaration(int pos, int len)

Method Summary

Modifier and Type	Method	Description
void	addVariable(VariableInitializer v)	Adds a variable initializer node to the child list.
List<VariableInitializer>	getVariables()	Returns variable list.
boolean	isConst()	Returns true if this is a Token.CONST declaration.
boolean	isLet()	Returns true if this is a Token.LET declaration.
boolean	isStatement()	Returns true if this node represents a statement.
boolean	isVar()	Returns true if this is a var (not const or let) declaration.
void	setIsStatement(boolean isStatement)	Set or unset the statement flag.
Node	setType(int type)	Sets the node type and returns this node.
void	setVariables(List<VariableInitializer> variables)	Sets variable list
String	toSource(int depth)	Emits source code for this node.
void	visit(NodeVisitor v)	Visits this node, then each VariableInitializer child.

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

VariableDeclaration

public VariableDeclaration()

VariableDeclaration

public VariableDeclaration(int pos)

VariableDeclaration

public VariableDeclaration(int pos,
                           int len)

Method Detail

getVariables

public List<VariableInitializer> getVariables()

Returns variable list. Never null.

setVariables

public void setVariables(List<VariableInitializer> variables)

Sets variable list

Throws:

IllegalArgumentException - if variables list is null

addVariable

public void addVariable(VariableInitializer v)

Adds a variable initializer node to the child list. Sets initializer node's parent to this node.

Throws:

IllegalArgumentException - if v is null

setType

public Node setType(int type)

Sets the node type and returns this node.

Overrides:

setType in class Node

Throws:

IllegalArgumentException - if declType is invalid

isVar

public boolean isVar()

Returns true if this is a var (not const or let) declaration.

Returns:

true if declType is Token.VAR

isConst

public boolean isConst()

Returns true if this is a Token.CONST declaration.

isLet

public boolean isLet()

Returns true if this is a Token.LET declaration.

isStatement

public boolean isStatement()

Returns true if this node represents a statement.

setIsStatement

public void setIsStatement(boolean isStatement)

Set or unset the statement flag.

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 each VariableInitializer child.

Specified by:

visit in class AstNode

Parameters:

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