Class VariableInitializer
java.lang.Object
org.mozilla.javascript.Node
org.mozilla.javascript.ast.AstNode
org.mozilla.javascript.ast.VariableInitializer
- All Implemented Interfaces:
Comparable<AstNode>, Iterable<Node>
A variable declaration or initializer, part of a
Node type is one of
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
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Nested Class Summary
Nested classes/interfaces inherited from class AstNode
AstNode.DebugPrintVisitor, AstNode.PositionComparator
Nested classes/interfaces inherited from class Node
Node.NodeIterator
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Field Summary
FieldsFields inherited from class AstNode
inlineComment, length, parent, position
Fields inherited from class Node
ARROW_FUNCTION_PROP, ATTRIBUTE_FLAG, BOTH, CASEARRAY_PROP, CATCH_SCOPE_PROP, CONTROL_BLOCK_PROP, DECR_FLAG, DESCENDANTS_FLAG, DESTRUCTURING_ARRAY_LENGTH, DESTRUCTURING_NAMES, DESTRUCTURING_PARAMS, DIRECTCALL_PROP, END_DROPS_OFF, END_RETURNS, END_RETURNS_VALUE, END_UNREACHED, END_YIELDS, EXPRESSION_CLOSURE_PROP, first, FUNCTION_PROP, GENERATOR_END_PROP, INCRDECR_PROP, ISNUMBER_PROP, JSDOC_PROP, LABEL_ID_PROP, last, LAST_PROP, LEFT, lineno, LOCAL_BLOCK_PROP, LOCAL_PROP, MEMBER_TYPE_PROP, NAME_PROP, next, NON_SPECIALCALL, OBJECT_IDS_PROP, PARENTHESIZED_PROP, POST_FLAG, PROPERTY_FLAG, propListHead, REGEXP_PROP, RIGHT, SHORTHAND_PROPERTY_NAME, SKIP_INDEXES_PROP, SPECIALCALL_EVAL, SPECIALCALL_PROP, SPECIALCALL_WITH, TARGETBLOCK_PROP, TEMPLATE_LITERAL_PROP, type, VARIABLE_PROP
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionReturns the initial value, ornull
if not providedReturns the variable name or destructuring formboolean
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
Sets the variable name or destructuring form, and sets its parent to this node.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 AstNode
addChild, assertNotNull, codeBug, compareTo, debugPrint, depth, getAbsolutePosition, getAstRoot, getEnclosingFunction, getEnclosingScope, getInlineComment, getLength, getLineno, getParent, getPosition, hasSideEffects, makeIndent, operatorToString, printList, setBounds, setInlineComment, setLength, setParent, setPosition, setRelative, shortName, toSource
Methods inherited from class Node
addChildAfter, addChildBefore, addChildrenToBack, addChildrenToFront, addChildToBack, addChildToFront, getBigInt, 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, setBigInt, setDouble, setJsDocNode, setLineno, setScope, setString, setType, toString, toStringTree
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface Iterable
forEach, spliterator
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Field Details
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target
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initializer
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Constructor Details
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VariableInitializer
public VariableInitializer() -
VariableInitializer
public VariableInitializer(int pos) -
VariableInitializer
public VariableInitializer(int pos, int len)
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Method Details
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setNodeType
public void setNodeType(int nodeType) Sets the node type.- Throws:
IllegalArgumentException
- ifnodeType
is not one ofToken.VAR
,Token.CONST
, orToken.LET
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isDestructuring
public boolean isDestructuring()Returns true if this is a destructuring assignment. If so, the initializer must be non-null
.- Returns:
true
if thetarget
field is a destructuring form (anArrayLiteral
orObjectLiteral
node)
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getTarget
Returns the variable name or destructuring form -
setTarget
Sets the variable name or destructuring form, and sets its parent to this node.- Throws:
IllegalArgumentException
- if target isnull
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getInitializer
Returns the initial value, ornull
if not provided -
setInitializer
Sets the initial value expression, and sets its parent to this node.- Parameters:
initializer
- the initial value. May benull
.
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toSource
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 thetoSource
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. -
visit
Visits this node, then the target expression, then the initializer expression if present.
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