@Override
public void endVisit(JsBinaryOperation expr, JsContext ctx) {
if (expr.getOperator() != JsBinaryOperator.ASG
|| !(expr.getArg1() instanceof JsNameRef)
|| !(expr.getArg2() instanceof JsNameRef)) {
return;
}
assignments.put(expr.getArg1().toString(), ((JsNameRef) expr.getArg2()).getName());
}
@Override
public void endVisit(JsBinaryOperation x, JsContext ctx) {
// Look for the patern a.f = o.@C::m();
if (!x.getOperator().isAssignment()) {
return;
}
if (!(x.getArg1() instanceof JsNameRef) || !(x.getArg2() instanceof JsNameRef)) {
return;
}
JsNameRef lhs = (JsNameRef) x.getArg1();
JsNameRef rhs = (JsNameRef) x.getArg2();
if (!rhs.isJsniReference() || !(jsniRefs.get(rhs.getIdent()) instanceof MethodBinding)) {
// Not a reference to a JSNI method.
return;
}
if (rhs.getQualifier() == null) {
// Unqualified JSNI reference is OK.
return;
}
if (lhs.getQualifier() == null) {
// Assignment to unqualified variable is OK.
return;
}
// Here we have a qualified JSNI method reference assigned to a field.
JsniRef jsniRef = JsniRef.parse(rhs.getIdent());
emitWarning(
"unsafe",
WARN_NOT_CAPTURING_QUALIFIER,
x.getSourceInfo(),
jsniRef,
rhs.getQualifier().toSource());
}
private Node transform(JsBinaryOperation x) {
JsBinaryOperator op = x.getOperator();
Node n = new Node(getTokenForOp(op), transform(x.getArg1()), transform(x.getArg2()));
return applySourceInfo(n, x);
}