org.mozilla.javascript.ast
Class LetNode

java.lang.Object
  org.mozilla.javascript.Node
      org.mozilla.javascript.ast.AstNode
          org.mozilla.javascript.ast.Jump
              org.mozilla.javascript.ast.Scope
                  org.mozilla.javascript.ast.LetNode

All Implemented Interfaces:

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

public class LetNode
extends Scope

AST node for let statements and expressions. Node type is Token.LET or Token.LETEXPR.

 LetStatement:
     let ( VariableDeclarationList ) Block
 LetExpression:
     let ( VariableDeclarationList ) Expression

Note that standalone let-statements with no parens or body block, such as let x=6, y=7;, are represented as a VariableDeclaration node of type Token.LET, wrapped with an ExpressionStatement.

Nested Class Summary

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

AstNode.DebugPrintVisitor, AstNode.PositionComparator

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

Node.NodeIterator

Field Summary

Fields inherited from class org.mozilla.javascript.ast.Scope

parentScope, symbolTable, top

Fields inherited from class org.mozilla.javascript.ast.Jump

target

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

length, parent, position

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, 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, SKIP_INDEXES_PROP, SPECIALCALL_EVAL, SPECIALCALL_PROP, SPECIALCALL_WITH, TARGETBLOCK_PROP, type, VARIABLE_PROP

Constructor Summary

LetNode()

LetNode(int pos)

LetNode(int pos, int len)

Method Summary

AstNode	getBody() Returns body statement or expression.
int	getLp() Returns left paren position, -1 if missing
int	getRp() Returns right paren position, -1 if missing
VariableDeclaration	getVariables() Returns variable list
void	setBody(AstNode body) Sets body statement or expression.
void	setLp(int lp) Sets left paren position
void	setParens(int lp, int rp) Sets both paren positions
void	setRp(int rp) Sets right paren position
void	setVariables(VariableDeclaration variables) Sets variable list.
java.lang.String	toSource(int depth) Emits source code for this node.
void	visit(NodeVisitor v) Visits this node, the variable list, and if present, the body expression or statement.

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

addChildScope, clearParentScope, getChildScopes, getDefiningScope, getParentScope, getStatements, getSymbol, getSymbolTable, getTop, joinScopes, putSymbol, replaceWith, setParentScope, setSymbolTable, setTop, splitScope

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

getContinue, getDefault, getFinally, getJumpStatement, getLoop, setContinue, setDefault, setFinally, setJumpStatement, setLoop

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

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

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

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LetNode

public LetNode()

LetNode

public LetNode(int pos)

LetNode

public LetNode(int pos,
               int len)

Method Detail

getVariables

public VariableDeclaration getVariables()

Returns variable list

setVariables

public void setVariables(VariableDeclaration variables)

Sets variable list. Sets list parent to this node.

Throws:

java.lang.IllegalArgumentException - if variables is null

getBody

public AstNode getBody()

Returns body statement or expression. Body is null if the form of the let statement is similar to a VariableDeclaration, with no curly-brace. (This form is used to define let-bound variables in the scope of the current block.)

Returns:

the body form

setBody

public void setBody(AstNode body)

Sets body statement or expression. Also sets the body parent to this node.

Parameters:

body - the body statement or expression. May be null.

getLp

public int getLp()

Returns left paren position, -1 if missing

setLp

public void setLp(int lp)

Sets left paren position

getRp

public int getRp()

Returns right paren position, -1 if missing

setRp

public void setRp(int rp)

Sets right paren position

setParens

public void setParens(int lp,
                      int rp)

Sets both paren positions

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.

Overrides:

toSource in class Scope

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, the variable list, and if present, the body expression or statement.

Overrides:

visit in class Scope

Parameters:

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