com.google.javascript.jscomp.lint

Class CheckNoMutatedEs6Exports

java.lang.Object

com.google.javascript.jscomp.lint.CheckNoMutatedEs6Exports

All Implemented Interfaces:

CompilerPass, NodeTraversal.Callback

public final class CheckNoMutatedEs6Exports
extends java.lang.Object
implements NodeTraversal.Callback, CompilerPass

Checks that exports of ES6 modules are not mutated outside of module initialization.

Field Summary

Fields

Modifier and Type	Field and Description
static DiagnosticType	MUTATED_EXPORT

Constructor Summary

Constructors

Constructor and Description
CheckNoMutatedEs6Exports(AbstractCompiler compiler)

Method Summary

Modifier and Type	Method and Description
void	process(Node externs, Node root) Process the JS with root node root.
boolean	shouldTraverse(NodeTraversal t, Node n, Node parent) Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed.
void	visit(NodeTraversal t, Node n, Node parent) Visits a node in postorder (after its children have been visited).

Methods inherited from class java.lang.Object

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

Field Detail

MUTATED_EXPORT

public static final DiagnosticType MUTATED_EXPORT

Constructor Detail

CheckNoMutatedEs6Exports

public CheckNoMutatedEs6Exports(AbstractCompiler compiler)

Method Detail

visit

public void visit(NodeTraversal t,
                  Node n,
                  Node parent)

Description copied from interface: NodeTraversal.Callback

Visits a node in postorder (after its children have been visited). A node is visited only if all its parents should be traversed (NodeTraversal.Callback.shouldTraverse(NodeTraversal, Node, Node)).

Implementations can have side effects (e.g. modifying the parse tree).

Specified by:

visit in interface NodeTraversal.Callback

shouldTraverse

public boolean shouldTraverse(NodeTraversal t,
                              Node n,
                              Node parent)

Description copied from interface: NodeTraversal.Callback

Visits a node in pre order (before visiting its children) and decides whether this node's children should be traversed. If children are traversed, they will be visited by NodeTraversal.Callback.visit(NodeTraversal, Node, Node) in postorder.

Implementations can have side effects (e.g. modifying the parse tree).

Specified by:

shouldTraverse in interface NodeTraversal.Callback

Returns:

whether the children of this node should be visited

process

public void process(Node externs,
                    Node root)

Description copied from interface: CompilerPass

Process the JS with root node root. Can modify the contents of each Node tree

Specified by:

process in interface CompilerPass

Parameters:

externs - Top of external JS tree

root - Top of JS tree