org.mozilla.javascript.ast

## Class GeneratorExpression

- 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.GeneratorExpression

- All Implemented Interfaces:
    java.lang.Comparable<AstNode>, java.lang.Iterable<Node>

      public class GeneratorExpression
      extends Scope

- - ### 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

    Constructors
    Constructor and Description
    `GeneratorExpression()`
    `GeneratorExpression(int pos)`
    `GeneratorExpression(int pos, int len)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addLoop(GeneratorExpressionLoop acl)` Adds a child loop node, and sets its parent to this node.
    `AstNode` | `getFilter()` Returns filter expression, or `null` if not present
    `int` | `getFilterLp()` Returns filter left paren position, or -1 if no filter
    `int` | `getFilterRp()` Returns filter right paren position, or -1 if no filter
    `int` | `getIfPosition()` Returns position of 'if' keyword, -1 if not present
    `java.util.List<GeneratorExpressionLoop>` | `getLoops()` Returns loop list
    `AstNode` | `getResult()` Returns result expression node (just after opening bracket)
    `void` | `setFilter(AstNode filter)` Sets filter expression, and sets its parent to this node.
    `void` | `setFilterLp(int lp)` Sets filter left paren position, or -1 if no filter
    `void` | `setFilterRp(int rp)` Sets filter right paren position, or -1 if no filter
    `void` | `setIfPosition(int ifPosition)` Sets position of 'if' keyword
    `void` | `setLoops(java.util.List<GeneratorExpressionLoop> loops)` Sets loop list
    `void` | `setResult(AstNode result)` Sets result expression, 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, the result expression, the loops, and the optional filter.

    - ### 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

    - #### GeneratorExpression

          public GeneratorExpression()

    - #### GeneratorExpression

          public GeneratorExpression(int pos)

    - #### GeneratorExpression

          public GeneratorExpression(int pos,
                             int len)

  - ### Method Detail

    - #### getResult

          public AstNode getResult()

      Returns result expression node (just after opening bracket)

    - #### setResult

          public void setResult(AstNode result)

      Sets result expression, and sets its parent to this node.
      Throws:
        `java.lang.IllegalArgumentException` - if result is `null`

    - #### getLoops

          public java.util.List<GeneratorExpressionLoop> getLoops()

      Returns loop list

    - #### setLoops

          public void setLoops(java.util.List<GeneratorExpressionLoop> loops)

      Sets loop list
      Throws:
        `java.lang.IllegalArgumentException` - if loops is `null`

    - #### addLoop

          public void addLoop(GeneratorExpressionLoop acl)

      Adds a child loop node, and sets its parent to this node.
      Throws:
        `java.lang.IllegalArgumentException` - if acl is `null`

    - #### getFilter

          public AstNode getFilter()

      Returns filter expression, or `null` if not present

    - #### setFilter

          public void setFilter(AstNode filter)

      Sets filter expression, and sets its parent to this node. Can be `null`.

    - #### getIfPosition

          public int getIfPosition()

      Returns position of 'if' keyword, -1 if not present

    - #### setIfPosition

          public void setIfPosition(int ifPosition)

      Sets position of 'if' keyword

    - #### getFilterLp

          public int getFilterLp()

      Returns filter left paren position, or -1 if no filter

    - #### setFilterLp

          public void setFilterLp(int lp)

      Sets filter left paren position, or -1 if no filter

    - #### getFilterRp

          public int getFilterRp()

      Returns filter right paren position, or -1 if no filter

    - #### setFilterRp

          public void setFilterRp(int rp)

      Sets filter right paren position, or -1 if no filter

    - #### 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 result expression, the loops, and the optional filter.
      Overrides:
        `visit` in class `Scope`
      Parameters:
        `v` - the object to call with this node and its children