com.google.javascript.jscomp

Class Es6ExternsCheck

java.lang.Object

com.google.javascript.jscomp.NodeTraversal.AbstractPreOrderCallback

com.google.javascript.jscomp.Es6ExternsCheck

All Implemented Interfaces:

CompilerPass, NodeTraversal.Callback

final class Es6ExternsCheck
extends NodeTraversal.AbstractPreOrderCallback
implements CompilerPass

Checks to make sure the required ES6 externs are present.

Field Summary

Fields

Modifier and Type	Field and Description
private AbstractCompiler	compiler
private boolean	hasSymbolExterns
(package private) static DiagnosticType	MISSING_ES6_EXTERNS

Constructor Summary

Constructors

Constructor and Description
Es6ExternsCheck(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.

Methods inherited from class com.google.javascript.jscomp.NodeTraversal.AbstractPreOrderCallback

visit

Methods inherited from class java.lang.Object

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

Field Detail

MISSING_ES6_EXTERNS

static final DiagnosticType MISSING_ES6_EXTERNS

compiler

private final AbstractCompiler compiler

hasSymbolExterns

private boolean hasSymbolExterns

Constructor Detail

Es6ExternsCheck

Es6ExternsCheck(AbstractCompiler compiler)

Method Detail

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

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