private boolean isValidSelectedFile() {
if (selectedFile == null) {
return false;
}
if (!DartCore.isDartLikeFileName(selectedFile.getName())) {
return false;
}
DartElement element = DartCore.create(selectedFile);
if (element instanceof CompilationUnit) {
CompilationUnit cu = (CompilationUnit) element;
DartLibrary lib = cu.getLibrary();
if (lib instanceof DartLibraryImpl) {
DartLibraryImpl impl = (DartLibraryImpl) lib;
return impl.hasMain() && !impl.isBrowserApplication();
}
}
return false;
}
/**
* 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;
}
/** Map from the source language to the target language (Dart to Javascript). */
public SourceLocation mapDartToJavascript(IFile file, int line) {
// given the file, find the dart element
DartElement dartElement = DartCore.create(file);
if (dartElement == null) {
return SourceLocation.UNKNOWN_LOCATION;
}
// given that, find the dart application / library
DartLibraryImpl dartLibrary = (DartLibraryImpl) dartElement.getAncestor(DartLibrary.class);
if (dartLibrary == null) {
return SourceLocation.UNKNOWN_LOCATION;
}
try {
// [out/DartAppFileName.app.js.map]
IPath outputLocation = getMainDartProject().getOutputLocation();
List<LibraryConfigurationFileImpl> libraryConfigurationFiles =
dartLibrary.getChildrenOfType(LibraryConfigurationFileImpl.class);
// if (libraryConfigurationFiles.size() > 0) {
// String libraryName = libraryConfigurationFiles.get(0).getFile().getName();
//
// IPath sourceMapPath = outputLocation.append(libraryName + ".js.map");
//
// SourceMapping mapping = getCachedSourceMappingPath(sourceMapPath);
//
// if (mapping != null && mapping instanceof SourceMappingReversable) {
// SourceMappingReversable revMapping = (SourceMappingReversable) mapping;
//
// String sourcePath = findMatchingSourcePath(file, revMapping);
//
// if (sourcePath != null) {
// Collection<OriginalMapping> mappings = revMapping.getReverseMapping(sourcePath,
// line, 1);
//
// // TODO(devoncarew): We need to handle the case where there are more then one
// mappings
// // returned; this will probably involve setting one breakpoint per mapping. More
// then
// // one mapping ==> something like a function that's been inlined into multiple
// places.
// if (mappings.size() > 0) {
// OriginalMapping map = mappings.iterator().next();
//
// String fileName = map.getOriginalFile();
// int lineNumber = map.getLineNumber();
//
// return new SourceLocation(new Path(fileName), lineNumber);
// }
// }
// }
// }
} catch (DartModelException exception) {
DartCore.logError(exception);
}
return SourceLocation.UNKNOWN_LOCATION;
}