/**
* Parse the specified source. Any exceptions thrown by the {@link DartParser} will be logged and
* a {@link DartModelException} thrown.
*
* @param sourceRef the Dart source being parsed
* @param source the source to be parsed (not <code>null</code>)
* @param preserveComments <code>true</code> if comments are to be preserved
* @param parseErrors a collection to which parse errors are appended or <code>null</code> if
* parse errors should be ignored
* @return the parse result
*/
public static DartUnit parseSource(
DartSource sourceRef,
String source,
boolean preserveComments,
Collection<DartCompilationError> parseErrors)
throws DartModelException {
long start = System.currentTimeMillis();
ParserRunnable runnable = new ParserRunnable(sourceRef, source, preserveComments, parseErrors);
runnable.runSafe();
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-parseSource", elapsed).log();
Instrumentation.operation("DartCompilerUtils-parseSource", elapsed)
.with("sourceRef.Name", sourceRef.getName())
.with("source", source)
.with("parseErrors", parseErrors != null ? parseErrors.size() : 0)
.log();
if (runnable.exception != null) {
throw new DartModelException(
new CoreException(
new Status(
IStatus.ERROR,
DartCore.PLUGIN_ID,
"Failed to parse " + sourceRef.getName(),
runnable.exception)));
}
return runnable.result;
}
/**
* Process the given resource within the context of the given working set in order to record the
* data and relationships found within the resource.
*/
public void indexResource(File libraryFile, File sourceFile, DartUnit dartUnit)
throws DartModelException {
// Get the LibrarySource
LibrarySource librarySource = dartUnit.getLibrary().getSource();
// Get the DartLibrary
DartLibraryImpl library;
IResource resource = ResourceUtil.getResource(libraryFile);
if (resource == null) {
library = new DartLibraryImpl(librarySource);
} else {
DartElement element = DartCore.create(resource);
if (element instanceof CompilationUnitImpl) {
element = ((CompilationUnitImpl) element).getLibrary();
}
if (!(element instanceof DartLibrary)) {
DartCore.logError("Expected library to be associated with " + libraryFile);
return;
}
library = (DartLibraryImpl) element;
}
// Get the CompilationUnit
DartSource unitSource = (DartSource) dartUnit.getSourceInfo().getSource();
CompilationUnit compilationUnit;
IResource res = ResourceUtil.getResource(sourceFile);
if (res != null) {
DefaultWorkingCopyOwner workingCopy = DefaultWorkingCopyOwner.getInstance();
compilationUnit = new CompilationUnitImpl(library, (IFile) res, workingCopy);
} else {
String relPath = unitSource.getRelativePath();
compilationUnit = new ExternalCompilationUnitImpl(library, relPath, unitSource);
}
URI unitUri = unitSource.getUri();
Resource indexerResource;
if (PackageLibraryManager.isDartUri(unitUri)) {
indexerResource =
new Resource(
ResourceFactory.composeResourceId(
librarySource.getUri().toString(), unitUri.toString()));
} else if (PackageLibraryManager.isPackageUri(unitUri)) {
indexerResource =
new Resource(
ResourceFactory.composeResourceId(
libraryFile.toURI().toString(), sourceFile.toURI().toString()));
} else {
indexerResource = ResourceFactory.getResource(compilationUnit);
}
// Queue the resource to be indexed
indexResource(indexerResource, libraryFile, compilationUnit, dartUnit);
}
private static Map<URI, DartUnit> createMap(Collection<DartUnit> suppliedUnits) {
if (suppliedUnits == null || suppliedUnits.isEmpty()) {
return null;
}
Map<URI, DartUnit> parsedUnits = new HashMap<URI, DartUnit>(suppliedUnits.size());
for (DartUnit unit : suppliedUnits) {
DartSource src = (DartSource) unit.getSourceInfo().getSource();
URI uri = src.getUri();
parsedUnits.put(uri, unit);
}
return parsedUnits;
}
@Override
public Void visitStringLiteral(DartStringLiteral node) {
if (foundElement == null) {
int start = node.getSourceInfo().getOffset();
int length = node.getSourceInfo().getLength();
int end = start + length;
if (end == 0) {
return null;
}
if (start <= startOffset && end >= endOffset) {
wordRegion = computeInternalStringRegion(start, length);
DartNode parent = node.getParent();
if (parent instanceof DartSourceDirective
&& ((DartSourceDirective) parent).getSourceUri() == node) {
// resolvedElement = ((DartSourceDirective) parent).getElement();
DartLibrary library = compilationUnit.getLibrary();
String fileName = getFileName(library, node.getValue());
CompilationUnit sourcedUnit = library.getCompilationUnit(fileName);
if (sourcedUnit != null && sourcedUnit.exists()) {
foundElement = sourcedUnit;
}
} else if (parent instanceof DartResourceDirective
&& ((DartResourceDirective) parent).getResourceUri() == node) {
// resolvedElement = ((DartResourceDirective) parent).getElement();
DartLibrary library = compilationUnit.getLibrary();
try {
DartSource unitSource = compilationUnit.getSourceRef();
if (unitSource != null) {
LibrarySource librarySource = unitSource.getLibrary();
if (librarySource != null) {
DartSource resourceSource = librarySource.getSourceFor(node.getValue());
if (resourceSource != null) {
URI resourceUri = resourceSource.getUri();
DartResource resource = library.getResource(resourceUri);
if (resource != null && resource.exists()) {
foundElement = resource;
}
}
}
}
} catch (DartModelException exception) {
foundElement = null;
}
}
throw new DartElementFoundException();
}
}
return null;
}
/** A synchronized call to {@link DartParser#parseUnit(DartSource)} */
public static DartUnit secureParseUnit(DartParser parser, DartSource sourceRef) {
long start = System.currentTimeMillis();
// All calls to DartC must be synchronized
synchronized (compilerLock) {
DartUnit ret = parser.parseUnit();
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-secureParseUnit", elapsed).log();
Instrumentation.operation("DartCompilerUtils-secureParseUnit", elapsed)
.with("sourceRef.Name", sourceRef != null ? sourceRef.getName() : "null")
.log();
return ret;
}
}
public static DartNode analyzeDelta(
LibrarySource library,
String sourceString,
DartUnit suppliedUnit,
DartNode completionNode,
int completionLocation,
final Collection<DartCompilationError> parseErrors)
throws DartModelException {
long start = System.currentTimeMillis();
if (cachedLibraries.get(library) == null) {
Collection<DartUnit> parsedUnits = new ArrayList<DartUnit>();
parsedUnits.add(suppliedUnit);
LibraryUnit resolvedLib = resolveLibrary(library, parsedUnits, parseErrors);
synchronized (cachedLibraries) {
LibraryUnit newLib = cachedLibraries.get(library);
if (newLib == null) {
cachedLibraries.put(library, resolvedLib);
}
}
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-analyzeDelta", elapsed)
.with("Cached", "false")
.with("ParsedUnits", parsedUnits.size())
.with("ParseErrors", parseErrors != null ? parseErrors.size() : 0)
.with("sourceString-length", sourceString.length())
.with("CachedLibraries", "false")
.log();
Instrumentation.operation("DartCompilerUtils-analyzeDelta", elapsed)
.with("analyzeDelta.Name", library.getName())
.with("librarySource.LastModified", library.getLastModified())
.with("sourceString", sourceString)
.with("sourceString-length", sourceString.length())
.with("CachedLibraries", "true")
.log();
return completionNode;
}
DartSource src = (DartSource) suppliedUnit.getSourceInfo().getSource();
URI unitUri = src.getUri();
Map<URI, String> suppliedSources = new HashMap<URI, String>();
suppliedSources.put(unitUri, sourceString);
DeltaAnalysisRunnable runnable =
new DeltaAnalysisRunnable(
library,
unitUri,
suppliedSources,
suppliedUnit,
completionNode,
completionLocation,
parseErrors);
runnable.runSafe();
long elapsed = System.currentTimeMillis() - start;
Instrumentation.metric("DartCompilerUtils-analyzeDelta", elapsed)
.with("Cached", "false")
.with("ParseErrors", parseErrors != null ? parseErrors.size() : 0)
.with("sourceString-length", sourceString.length())
.with("CachedLibraries", "false")
.log();
Instrumentation.operation("DartCompilerUtils-analyzeDelta", elapsed)
.with("analyzeDelta.Name", library.getName())
.with("librarySource.LastModified", library.getLastModified())
.with("sourceString", sourceString)
.with("sourceString-length", sourceString.length())
.with("CachedLibraries", "true")
.log();
if (runnable.exception != null) {
throw new DartModelException(
new CoreException(
new Status(
IStatus.ERROR,
DartCore.PLUGIN_ID,
"Failed to parse " + library.getName(),
runnable.exception)));
}
return runnable.analyzedNode;
}