public final class Es6RewriteDestructuring extends java.lang.Object implements NodeTraversal.Callback, HotSwapCompilerPass
Modifier and Type | Field and Description |
---|---|
private AbstractCompiler |
compiler |
private static java.lang.String |
DESTRUCTURING_TEMP_VAR |
private int |
destructuringVarCounter |
Constructor and Description |
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Es6RewriteDestructuring(AbstractCompiler compiler) |
Modifier and Type | Method and Description |
---|---|
private static Node |
defaultValueHook(Node getprop,
Node defaultValue)
Helper for transpiling DEFAULT_VALUE trees.
|
void |
hotSwapScript(Node scriptRoot,
Node originalRoot)
Process the JS with root node root.
|
void |
process(Node externs,
Node root)
Process the JS with root node root.
|
boolean |
shouldTraverse(NodeTraversal nodeTraversal,
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).
|
private void |
visitArrayPattern(NodeTraversal t,
Node arrayPattern,
Node parent) |
private void |
visitDestructuringPatternInCatch(Node pattern) |
private void |
visitDestructuringPatternInEnhancedFor(Node pattern) |
private void |
visitForOf(Node node) |
private void |
visitObjectPattern(NodeTraversal t,
Node objectPattern,
Node parent) |
private void |
visitParamList(Node paramList,
Node function)
Processes trailing default and rest parameters.
|
private final AbstractCompiler compiler
private static final java.lang.String DESTRUCTURING_TEMP_VAR
private int destructuringVarCounter
public Es6RewriteDestructuring(AbstractCompiler compiler)
public void process(Node externs, Node root)
CompilerPass
process
in interface CompilerPass
externs
- Top of external JS treeroot
- Top of JS treepublic void hotSwapScript(Node scriptRoot, Node originalRoot)
HotSwapCompilerPass
hotSwapScript
in interface HotSwapCompilerPass
scriptRoot
- Root node corresponding to the file that is modified,
should be of type Token.SCRIPT
.originalRoot
- Root node corresponding to the original version of the
file that is modified. Should be of type token.SCRIPT
.public boolean shouldTraverse(NodeTraversal nodeTraversal, Node n, Node parent)
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).
shouldTraverse
in interface NodeTraversal.Callback
public void visit(NodeTraversal t, Node n, Node parent)
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).
visit
in interface NodeTraversal.Callback
private void visitParamList(Node paramList, Node function)
private void visitForOf(Node node)
private void visitObjectPattern(NodeTraversal t, Node objectPattern, Node parent)
private void visitArrayPattern(NodeTraversal t, Node arrayPattern, Node parent)
private void visitDestructuringPatternInEnhancedFor(Node pattern)
private void visitDestructuringPatternInCatch(Node pattern)