/**
* Parse the source for the specified compilation unit and resolve any elements found in it. Any
* exceptions thrown by the {@link DartParser} will be added to the given collection.
*
* @param compilationUnit the compilation unit (not <code>null</code>)
* @param parseErrors a collection to which parse errors are added or <code>null</code> if parse
* errors should be ignored
* @return the parse result
*/
public static DartUnit resolveUnit(
CompilationUnit compilationUnit, Collection<DartCompilationError> parseErrors)
throws DartModelException {
long start = System.currentTimeMillis();
DartLibraryImpl library = (DartLibraryImpl) compilationUnit.getLibrary();
if (library == null) {
// If we cannot get the library, we cannot resolve any elements so we
// revert to simply parsing the compilation unit.
DartUnit ret = parseUnit(compilationUnit, parseErrors);
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-resolveUnit", elapsed)
.with("ParseOnlyFallback", "true")
.log();
Instrumentation.operation("DartCompilerUtils-resolveUnit", elapsed)
.with("ParseOnlyFallback", "true")
.with("CompilaitonUnit-ElementName", compilationUnit.getElementName())
.log();
return ret;
}
IResource resource = compilationUnit.getResource();
URI unitUri = null;
if (resource != null) {
unitUri = resource.getLocationURI();
}
if (unitUri == null && compilationUnit instanceof ExternalCompilationUnitImpl) {
unitUri = ((ExternalCompilationUnitImpl) compilationUnit).getUri();
}
if (unitUri == null) {
unitUri = ((CompilationUnitImpl) compilationUnit).getSourceRef().getUri();
}
String unitSource = compilationUnit.getSource();
Map<URI, String> suppliedSources = new HashMap<URI, String>();
if (unitSource != null) {
suppliedSources.put(unitUri, unitSource);
}
DartUnit ret =
resolveUnit(library.getLibrarySourceFile(), unitUri, suppliedSources, parseErrors);
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-resolveUnit", elapsed)
.with("ParseOnlyFallback", "false")
.log();
Instrumentation.operation("DartCompilerUtils-resolveUnit", elapsed)
.with("ParseOnlyFallback", "false")
.with("CompilaitonUnit-ElementName", compilationUnit.getElementName())
.with("compilationUnit.LastModified", compilationUnit.getModificationStamp())
.log();
return ret;
}
