<itemvalue="Return the result of parsing the file at the given [path]. If a [resourceProvider] is given, it will be used to access the file system. [featureSet] determines what set of features will be assumed by the parser. This parameter is required because the analyzer does not yet have a performant way of computing the correct feature set for a single file to be parsed. Callers that need the feature set to be strictly correct must create an [AnalysisContextCollection], query it to get an [AnalysisContext], query it to get an [AnalysisSession], and then call `getParsedUnit`. Callers that don't need the feature set to be strictly correct can pass in `FeatureSet.latestLanguageVersion()` to enable the default set of features; this is much more performant than using an analysis session, because it doesn't require the analyzer to process the SDK. If [throwIfDiagnostics] is `true` (the default), then if any diagnostics are produced because of syntactic errors in the file an `ArgumentError` will be thrown. If the parameter is `false`, then the caller can check the result to see whether there are any errors."/>
<itemvalue="Return the result of resolving the file at the given [path]. If a [resourceProvider] is given, it will be used to access the file system. Note that if more than one file is going to be resolved then this function is inefficient. Clients should instead use [AnalysisContextCollection] to create one or more contexts and use those contexts to resolve the files."/>
<itemvalue="A consistent view of the results of analyzing one or more files. The methods in this class that return analysis results will throw an [InconsistentAnalysisException] if the result to be returned might be inconsistent with any previously returned results. Clients may not extend, implement or mix-in this class."/>
<itemvalue="Return a future that will complete with information about the results of resolving all of the files in the library with the library [element]. Throw [ArgumentError] if the [element] was not produced by this session."/>
<itemvalue="The external names referenced by the file."/>
