@Override
public void endVisit(JsNameRef x, JsContext ctx) {
String ident = x.getIdent();
if (!x.isJsniReference()) {
// Not a jsni reference.
return;
}
JsniRef jsniRef = JsniRef.parse(ident);
if (jsniRef == null) {
emitError(ERR_MALFORMED_JSNI_IDENTIFIER, x.getSourceInfo(), null, ident);
return;
}
Binding binding =
resolveReference(x.getSourceInfo(), jsniRef, x.getQualifier() != null, ctx.isLvalue());
assert !x.isResolved();
if (!ident.equals(jsniRef.getResolvedReference())) {
// Replace by the resolved reference (consisting of the fully qualified classname and the
// method description including actual signature) so that dispatch everywhere is consistent
// with the one resolved here.
ident = jsniRef.getResolvedReference();
JsNameRef newRef = new JsNameRef(x.getSourceInfo(), ident);
newRef.setQualifier(x.getQualifier());
ctx.replaceMe(newRef);
}
if (binding != null) {
jsniRefs.put(ident, binding);
}
}
private Node transform(JsNameRef x) {
Node n;
JsName name = x.getName();
boolean isExternal = name == null || !name.isObfuscatable();
if (x.getQualifier() != null) {
n = IR.getprop(transform(x.getQualifier()), transformNameAsString(x.getShortIdent(), x));
if (isExternal) {
this.externalProperties.add(x.getShortIdent());
}
} else {
n = transformName(x.getShortIdent(), x);
if (isExternal) {
this.externalVars.add(x.getShortIdent());
} else if (name.getEnclosing() == program.getScope()) {
this.globalVars.add(x.getShortIdent());
}
}
applyOriginalName(n, x);
return applySourceInfo(n, x);
}
@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 String getName(JsNameRef name) {
return name.getShortIdent();
}