public JsFunction mapFunction(Node fnNode) throws JsParserException {
int nodeType = fnNode.getType();
assert nodeType == TokenStream.FUNCTION
: "Expected function node, got: " + TokenStream.tokenToName(nodeType);
Node fromFnNameNode = fnNode.getFirstChild();
Node fromParamNode = fnNode.getFirstChild().getNext().getFirstChild();
Node fromBodyNode = fnNode.getFirstChild().getNext().getNext();
JsFunction toFn = scopeContext.enterFunction();
// Decide the function's name, if any.
//
String fnNameIdent = fromFnNameNode.getString();
if (fnNameIdent != null && fnNameIdent.length() > 0) {
scopeContext.globalNameFor(fnNameIdent);
}
while (fromParamNode != null) {
String fromParamName = fromParamNode.getString();
JsName name = scopeContext.localNameFor(fromParamName);
toFn.getParameters().add(new JsParameter(name));
fromParamNode = fromParamNode.getNext();
}
// Map the function's body.
//
JsBlock toBody = mapBlock(fromBodyNode);
toFn.setBody(toBody);
scopeContext.exitFunction();
return toFn;
}
@Nullable
private JsNameRef getTargetLabel(@NotNull Node statementWithLabel) {
int type = statementWithLabel.getType();
if (type != TokenStream.BREAK && type != TokenStream.CONTINUE) {
String tokenTypeName = TokenStream.tokenToName(statementWithLabel.getType());
throw new AssertionError("Unexpected node type with label: " + tokenTypeName);
}
Node label = statementWithLabel.getFirstChild();
if (label == null) return null;
String identifier = label.getString();
assert identifier != null : "If label exists identifier should not be null";
JsName labelName = scopeContext.labelFor(identifier);
assert labelName != null : "Unknown label name: " + identifier;
return labelName.makeRef();
}