static Microsoft.CodeAnalysis.SyntaxTree GetLibraryModuleSyntaxTree(string filename)
{
if (Path.GetExtension(filename) == ".mylang")
{
if (MakeSyntaxAnalysis(filename, out Node syntaxTree))
{
//initialize visitor
RoslynTreeBuilderVisitor visitor = new RoslynTreeBuilderVisitor(Path.GetFileNameWithoutExtension(filename));
//run visitor
syntaxTree.Visit(visitor);
return(visitor.UnitNode.SyntaxTree);
}
else
{
throw new Exception($"Error in standard library: {Path.GetFileNameWithoutExtension(filename)}");
}
}
else if (Path.GetExtension(filename) == ".cs")
{
try
{
return(CSharpSyntaxTree.ParseText(File.ReadAllText(filename)));
}
catch
{
throw new Exception($"Error in standard library: {Path.GetFileNameWithoutExtension(filename)}");
}
}
else
{
throw new Exception($"Unknow item in standard library: {Path.GetFileNameWithoutExtension(filename)}");
}
}
/// <summary>
/// Compile the program which is setted by syntax tree
/// </summary>
/// <param name="syntaxTree">Syntax tree</param>
static void Compile(Node syntaxTree, string outputFileName)
{
//initialize visitor
RoslynTreeBuilderVisitor visitor = new RoslynTreeBuilderVisitor();
//run visitor
syntaxTree.Visit(visitor);
//get unit which prepared for compilation
var programUnit = visitor.UnitNode;
//get all location annotations and build location map
var locationAnnotations = visitor.LocationAnnotations;
var locationMap = GetLocationMap(programUnit, locationAnnotations);
//get syntax trees of standard library
var arraySyntaxTree = CSharpSyntaxTree.ParseText(File.ReadAllText("../../../MyCompilerLibrary/Array.cs"));
var syntaxTrees = new List <Microsoft.CodeAnalysis.SyntaxTree> {
programUnit.SyntaxTree
};
foreach (var file in Directory.GetFiles("../../../MyCompilerLibrary/"))
{
syntaxTrees.Add(GetLibraryModuleSyntaxTree(file));
}
CSharpCompilation compilation = CSharpCompilation.Create(
"assemblyName",
syntaxTrees,
new[] {
MetadataReference.CreateFromFile(typeof(object).Assembly.Location),
MetadataReference.CreateFromFile(Assembly.Load("System.Runtime").Location),
MetadataReference.CreateFromFile(Assembly.Load("System.Console").Location),
MetadataReference.CreateFromFile(Assembly.Load("System.Linq").Location),
MetadataReference.CreateFromFile(typeof(System.Diagnostics.Stopwatch).Assembly.Location),
},
new CSharpCompilationOptions(
outputKind: OutputKind.ConsoleApplication, //set application type as console app
optimizationLevel: OptimizationLevel.Release //set optimization level for Release mode
)
);
string configPath = Path.GetDirectoryName(outputFileName) + "/" + Path.GetFileNameWithoutExtension(outputFileName) + ".runtimeconfig.json";
GenerateRuntimeConfig(configPath.TrimStart('/')); //generate runtime config
//generate program to file
using var exeStream = new FileStream(outputFileName, FileMode.Create);
var emitResult = compilation.Emit(exeStream); //compile
//if we have warnings, print them
foreach (var error in emitResult.Diagnostics.Where(diagnostic => diagnostic.WarningLevel > 0 && diagnostic.WarningLevel < 4))
{
Console.WriteLine(errorFormatter.GetErrorString(error, locationMap));
}
if (!emitResult.Success)
{
//if we have errors, print them
foreach (var error in emitResult.Diagnostics.Where(diagnostic => diagnostic.WarningLevel == 0))
{
Console.WriteLine(errorFormatter.GetErrorString(error, locationMap));
}
}
//print C# source code which matches to builded Roslyn's syntax tree
//Console.WriteLine("========== SOURCE CODE ==========");
//Console.WriteLine(programUnit.NormalizeWhitespace().ToFullString());
}