/**
* Find a split point as designated in the {@link #PROP_INITIAL_SEQUENCE} configuration property.
*/
public static JRunAsync findRunAsync(String refString, JProgram program, TreeLogger branch)
throws UnableToCompleteException {
SpeedTracerLogger.Event codeSplitterEvent =
SpeedTracerLogger.start(CompilerEventType.CODE_SPLITTER, "phase", "findRunAsync");
Multimap<String, JRunAsync> splitPointsByRunAsyncName =
computeRunAsyncsByName(program.getRunAsyncs(), false);
if (refString.startsWith("@")) {
JsniRef jsniRef = JsniRef.parse(refString);
if (jsniRef == null) {
branch.log(
TreeLogger.ERROR,
"Badly formatted JSNI reference in " + PROP_INITIAL_SEQUENCE + ": " + refString);
throw new UnableToCompleteException();
}
final String lookupErrorHolder[] = new String[1];
JNode referent =
JsniRefLookup.findJsniRefTarget(
jsniRef,
program,
new JsniRefLookup.ErrorReporter() {
@Override
public void reportError(String error) {
lookupErrorHolder[0] = error;
}
});
if (referent == null) {
TreeLogger resolveLogger =
branch.branch(TreeLogger.ERROR, "Could not resolve JSNI reference: " + jsniRef);
resolveLogger.log(TreeLogger.ERROR, lookupErrorHolder[0]);
throw new UnableToCompleteException();
}
if (!(referent instanceof JMethod)) {
branch.log(TreeLogger.ERROR, "Not a method: " + referent);
throw new UnableToCompleteException();
}
JMethod method = (JMethod) referent;
String canonicalName = ReplaceRunAsyncs.getImplicitName(method);
Collection<JRunAsync> splitPoints = splitPointsByRunAsyncName.get(canonicalName);
if (splitPoints == null) {
branch.log(TreeLogger.ERROR, "Method does not enclose a runAsync call: " + jsniRef);
throw new UnableToCompleteException();
}
if (splitPoints.size() > 1) {
branch.log(
TreeLogger.ERROR,
"Method includes multiple runAsync calls, "
+ "so it's ambiguous which one is meant: "
+ jsniRef);
throw new UnableToCompleteException();
}
assert splitPoints.size() == 1;
return splitPoints.iterator().next();
}
// Assume it's a raw class name
Collection<JRunAsync> splitPoints = splitPointsByRunAsyncName.get(refString);
if (splitPoints == null || splitPoints.size() == 0) {
branch.log(TreeLogger.ERROR, "No runAsync call is labelled with class " + refString);
throw new UnableToCompleteException();
}
if (splitPoints.size() > 1) {
branch.log(
TreeLogger.ERROR, "More than one runAsync call is labelled with class " + refString);
throw new UnableToCompleteException();
}
assert splitPoints.size() == 1;
JRunAsync result = splitPoints.iterator().next();
codeSplitterEvent.end();
return result;
}
