org.mozilla.javascript.ast

## Class TryStatement

- java.lang.Object
- - org.mozilla.javascript.Node
  - - org.mozilla.javascript.ast.AstNode
    - - org.mozilla.javascript.ast.TryStatement

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

      public class TryStatement
      extends AstNode

  Try/catch/finally statement. Node type is `Token.TRY`.

      TryStatement :
              try Block Catch
              try Block Finally
              try Block Catch Finally
       Catch :
              catch ( Identifier ) Block
       Finally :
              finally Block

- - ### 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.AstNode

      `length, parent, position`

    - ### Fields inherited from class org.mozilla.javascript.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, 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
    `TryStatement()`
    `TryStatement(int pos)`
    `TryStatement(int pos, int len)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addCatchClause(CatchClause clause)` Add a catch-clause to the end of the list, and sets its parent to this node.
    `java.util.List<CatchClause>` | `getCatchClauses()` Returns list of `CatchClause` nodes.
    `AstNode` | `getFinallyBlock()` Returns finally block, or `null` if not present
    `int` | `getFinallyPosition()` Returns position of `finally` keyword, if present, or -1
    `AstNode` | `getTryBlock()`
    `void` | `setCatchClauses(java.util.List<CatchClause> catchClauses)` Sets list of `CatchClause` nodes.
    `void` | `setFinallyBlock(AstNode finallyBlock)` Sets finally block, and sets its parent to this node.
    `void` | `setFinallyPosition(int finallyPosition)` Sets position of `finally` keyword, if present, or -1
    `void` | `setTryBlock(AstNode tryBlock)` Sets try block.
    `java.lang.String` | `toSource(int depth)` Emits source code for this node.
    `void` | `visit(NodeVisitor v)` Visits this node, then the try-block, then any catch clauses, and then any finally block.

    - ### 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`

    - ### Methods inherited from interface java.lang.Iterable

      `forEach, spliterator`

- - ### Constructor Detail

    - #### TryStatement

          public TryStatement()

    - #### TryStatement

          public TryStatement(int pos)

    - #### TryStatement

          public TryStatement(int pos,
                              int len)

  - ### Method Detail

    - #### getTryBlock

          public AstNode getTryBlock()

    - #### setTryBlock

          public void setTryBlock(AstNode tryBlock)

      Sets try block. Also sets its parent to this node.
      Throws:
        `IllegalArgumentException}` - if `tryBlock` is `null`

    - #### getCatchClauses

          public java.util.List<CatchClause> getCatchClauses()

      Returns list of `CatchClause` nodes. If there are no catch clauses, returns an immutable empty list.

    - #### setCatchClauses

          public void setCatchClauses(java.util.List<CatchClause> catchClauses)

      Sets list of `CatchClause` nodes. Also sets their parents to this node. May be `null`. Replaces any existing catch clauses for this node.

    - #### addCatchClause

          public void addCatchClause(CatchClause clause)

      Add a catch-clause to the end of the list, and sets its parent to this node.
      Throws:
        `IllegalArgumentException}` - if `clause` is `null`

    - #### getFinallyBlock

          public AstNode getFinallyBlock()

      Returns finally block, or `null` if not present

    - #### setFinallyBlock

          public void setFinallyBlock(AstNode finallyBlock)

      Sets finally block, and sets its parent to this node. May be `null`.

    - #### getFinallyPosition

          public int getFinallyPosition()

      Returns position of `finally` keyword, if present, or -1

    - #### setFinallyPosition

          public void setFinallyPosition(int finallyPosition)

      Sets position of `finally` keyword, if present, or -1

    - #### 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.

      Specified by:
        `toSource` in class `AstNode`
      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, then the try-block, then any catch clauses, and then any finally block.
      Specified by:
        `visit` in class `AstNode`
      Parameters:
        `v` - the object to call with this node and its children