Package org.mozilla.javascript.ast
Class VariableDeclaration
- java.lang.Object
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- org.mozilla.javascript.Node
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- org.mozilla.javascript.ast.AstNode
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- org.mozilla.javascript.ast.VariableDeclaration
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public class VariableDeclaration extends AstNode
A list of one or more var, const or let declarations. Node type isToken.VAR
,Token.CONST
orToken.LET
.If the node is for
var
orconst
, the node position is the beginning of thevar
orconst
keyword. Forlet
declarations, the node position coincides with the firstVariableInitializer
child.A standalone variable declaration in a statement context returns
true
from itsisStatement()
method.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.mozilla.javascript.ast.AstNode
AstNode.PositionComparator
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Nested classes/interfaces inherited from class org.mozilla.javascript.Node
Node.NodeIterator
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Field Summary
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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
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Constructor Summary
Constructors Constructor Description VariableDeclaration()
VariableDeclaration(int pos)
VariableDeclaration(int pos, int len)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
addVariable(VariableInitializer v)
Adds a variable initializer node to the child list.java.util.List<VariableInitializer>
getVariables()
Returns variable list.boolean
isConst()
Returns true if this is aToken.CONST
declaration.boolean
isLet()
Returns true if this is aToken.LET
declaration.boolean
isStatement()
Returns true if this node represents a statement.boolean
isVar()
Returns true if this is avar
(notconst
orlet
) 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(java.util.List<VariableInitializer> variables)
Sets variable listjava.lang.String
toSource(int depth)
Emits source code for this node.void
visit(NodeVisitor v)
Visits this node, then eachVariableInitializer
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
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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
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Method Detail
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getVariables
public java.util.List<VariableInitializer> getVariables()
Returns variable list. Nevernull
.
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setVariables
public void setVariables(java.util.List<VariableInitializer> variables)
Sets variable list- Throws:
java.lang.IllegalArgumentException
- if variables list isnull
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addVariable
public void addVariable(VariableInitializer v)
Adds a variable initializer node to the child list. Sets initializer node's parent to this node.- Throws:
java.lang.IllegalArgumentException
- if v isnull
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setType
public Node setType(int type)
Sets the node type and returns this node.
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isVar
public boolean isVar()
Returns true if this is avar
(notconst
orlet
) declaration.- Returns:
- true if
declType
isToken.VAR
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isConst
public boolean isConst()
Returns true if this is aToken.CONST
declaration.
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isLet
public boolean isLet()
Returns true if this is aToken.LET
declaration.
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isStatement
public boolean isStatement()
Returns true if this node represents a statement.
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setIsStatement
public void setIsStatement(boolean isStatement)
Set or unset the statement flag.
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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 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.
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visit
public void visit(NodeVisitor v)
Visits this node, then eachVariableInitializer
child.
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