/// <summary>
/// Gets a value indicating whether anything is different between this cache and the specified cache.
/// </summary>
/// <param name="other">The cache to compare against this cache.</param>
/// <returns><see langword="true"/> if this cache is different from the specified cache; otherwise, <see langword="false"/>.</returns>
public Boolean IsDifferentFrom(CompilerCache other)
{
Contract.Require(other, nameof(other));
if (!String.Equals(versionUltraviolet, other.versionUltraviolet, StringComparison.Ordinal) ||
!String.Equals(versionMscorlib, other.versionMscorlib, StringComparison.Ordinal))
{
return(true);
}
var keys = Enumerable.Union(this.hashes.Keys, other.hashes.Keys).ToList();
foreach (var key in keys)
{
if (!this.hashes.TryGetValue(key, out var hash1))
{
return(true);
}
if (!other.hashes.TryGetValue(key, out var hash2))
{
return(true);
}
if (!String.Equals(hash1, hash2, StringComparison.Ordinal))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Creates a new instance of <see cref="CompilerCache"/> by loading the contents of the specified file.
/// </summary>
/// <param name="path">The path to the file to load.</param>
/// <returns>The <see cref="CompilerCache"/> instance that was created.</returns>
public static CompilerCache FromFile(String path)
{
Contract.RequireNotEmpty(path, nameof(path));
var cache = new CompilerCache();
var lines = File.ReadAllLines(path);
var compilerType = default(String);
var versionUltraviolet = default(String);
var versionMscorlib = default(String);
for (int i = 0; i < lines.Length; i++)
{
var line = lines[i];
if (String.IsNullOrEmpty(line))
{
continue;
}
if (i == 0 && line.StartsWith("#compiler "))
{
compilerType = line.Substring("#compiler ".Length).Trim();
continue;
}
if (versionUltraviolet == default(String))
{
versionUltraviolet = line;
continue;
}
if (versionMscorlib == default(String))
{
versionMscorlib = line;
continue;
}
var components = line.Split((Char[])null, StringSplitOptions.RemoveEmptyEntries);
if (components.Length != 2)
{
throw new InvalidDataException();
}
var name = components[0];
var hash = components[1];
cache.hashes[name] = hash;
}
cache.compilerType = compilerType;
cache.versionUltraviolet = versionUltraviolet;
cache.versionMscorlib = versionMscorlib;
return(cache);
}
/// <inheritdoc/>
public BindingExpressionCompilationResult Compile(UltravioletContext uv, BindingExpressionCompilerOptions options)
{
Contract.Require(uv, nameof(uv));
Contract.Require(options, nameof(options));
if (String.IsNullOrEmpty(options.Input) || String.IsNullOrEmpty(options.Output))
{
throw new ArgumentException(PresentationStrings.InvalidCompilerOptions);
}
var compiler = CreateCodeProvider();
var state = new LegacyExpressionCompilerState(uv, compiler)
{
GenerateInMemory = options.GenerateInMemory,
WorkInTemporaryDirectory = options.WorkInTemporaryDirectory,
WriteErrorsToFile = options.WriteErrorsToFile
};
var dataSourceWrapperInfos = DataSourceLoader.GetDataSourceWrapperInfos(state, options.Input);
var cacheFile = Path.ChangeExtension(options.Output, "cache");
var cacheNew = CompilerCache.FromDataSourceWrappers(this, dataSourceWrapperInfos);
if (File.Exists(options.Output))
{
var cacheOld = CompilerCache.TryFromFile(cacheFile);
if (cacheOld != null && !options.IgnoreCache && !cacheOld.IsDifferentFrom(cacheNew))
{
return(BindingExpressionCompilationResult.CreateSucceeded());
}
}
var result = CompileViewModels(state, dataSourceWrapperInfos, options.Output, options.GenerateDebugAssembly);
if (result.Succeeded)
{
if (!options.GenerateInMemory)
{
cacheNew.Save(cacheFile);
}
if (!options.WriteCompiledFilesToWorkingDirectory && !options.WorkInTemporaryDirectory)
{
state.DeleteWorkingDirectory();
}
}
if (options.WriteCompiledFilesToWorkingDirectory && !options.WorkInTemporaryDirectory)
{
WriteCompiledFilesToWorkingDirectory(state, dataSourceWrapperInfos);
}
return(result);
}
/// <summary>
/// Creates a new instance of <see cref="CompilerCache"/> from the specified collection of data source wrappers.
/// </summary>
/// <param name="compiler">The compiler which is creating this cache.</param>
/// <param name="dataSourceWrappers">A collection of data source wrappers from which to create a cache object.</param>
/// <returns>The <see cref="CompilerCache"/> instance that was created.</returns>
public static CompilerCache FromDataSourceWrappers(IBindingExpressionCompiler compiler, IEnumerable <DataSourceWrapperInfo> dataSourceWrappers)
{
Contract.Require(compiler, nameof(compiler));
Contract.Require(dataSourceWrappers, nameof(dataSourceWrappers));
var types = new HashSet <Type>();
var cache = new CompilerCache();
cache.compilerType = compiler.GetType().FullName;
foreach (var dataSourceWrapper in dataSourceWrappers)
{
if (!cache.hashes.ContainsKey(dataSourceWrapper.DataSourcePath))
{
var dataSourceWrapperHash = GenerateHashForXElement(dataSourceWrapper.DataSourceDefinition.Definition);
cache.hashes[dataSourceWrapper.DataSourcePath] = dataSourceWrapperHash;
}
AddTypeReferences(dataSourceWrapper.DataSourceType, types);
if (dataSourceWrapper.DependentWrapperInfos != null)
{
foreach (var dependentWrapper in dataSourceWrapper.DependentWrapperInfos)
{
AddTypeReferences(dependentWrapper.DataSourceType, types);
}
}
}
foreach (var type in types)
{
var typeHash = GenerateHashForType(type);
cache.hashes[type.FullName] = typeHash;
}
return(cache);
}
