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java.lang.Object org.mozilla.javascript.Node org.mozilla.javascript.ast.AstNode org.mozilla.javascript.ast.VariableInitializer
public class VariableInitializer
A variable declaration or initializer, part of a VariableDeclaration
expression. The variable "target" can be a simple name or a destructuring
form. The initializer, if present, can be any expression.
Node type is one of Token.VAR
, Token.CONST
, or
Token.LET
.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.mozilla.javascript.ast.AstNode |
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AstNode.DebugPrintVisitor, AstNode.PositionComparator |
Nested classes/interfaces inherited from class org.mozilla.javascript.Node |
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Node.NodeIterator |
Field Summary |
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Fields inherited from class org.mozilla.javascript.ast.AstNode |
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length, parent, position |
Constructor Summary | |
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VariableInitializer()
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VariableInitializer(int pos)
|
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VariableInitializer(int pos,
int len)
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Method Summary | |
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AstNode |
getInitializer()
Returns the initial value, or null if not provided |
AstNode |
getTarget()
Returns the variable name or destructuring form |
boolean |
isDestructuring()
Returns true if this is a destructuring assignment. |
void |
setInitializer(AstNode initializer)
Sets the initial value expression, and sets its parent to this node. |
void |
setNodeType(int nodeType)
Sets the node type. |
void |
setTarget(AstNode target)
Sets the variable name or destructuring form, and sets its parent to this node. |
java.lang.String |
toSource(int depth)
Emits source code for this node. |
void |
visit(NodeVisitor v)
Visits this node, then the target expression, then the initializer expression if present. |
Methods inherited from class org.mozilla.javascript.ast.AstNode |
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addChild, assertNotNull, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getLength, getLineno, getParent, getPosition, hasSideEffects, makeIndent, operatorToString, printList, setBounds, setLength, setParent, setPosition, setRelative, shortName, toSource |
Methods inherited from class org.mozilla.javascript.Node |
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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, setType, toString, toStringTree |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public VariableInitializer()
public VariableInitializer(int pos)
public VariableInitializer(int pos, int len)
Method Detail |
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public void setNodeType(int nodeType)
java.lang.IllegalArgumentException
- if nodeType
is not one of
Token.VAR
, Token.CONST
, or Token.LET
public boolean isDestructuring()
null
.
true
if the target
field is a destructuring form
(an ArrayLiteral
or ObjectLiteral
node)public AstNode getTarget()
public void setTarget(AstNode target)
java.lang.IllegalArgumentException
- if target is null
public AstNode getInitializer()
null
if not provided
public void setInitializer(AstNode initializer)
initializer
- the initial value. May be null
.public java.lang.String toSource(int depth)
AstNode
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.
toSource
in class AstNode
depth
- the current recursion depth, typically beginning at 0
when called on the root node.public void visit(NodeVisitor v)
visit
in class AstNode
v
- the object to call with this node and its children
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