public static void AnalyzeSyntax(Token root)
{
SyntaxAnalyzer analyzer = new SyntaxAnalyzer();
Token srcs = root.Find("Sources");
Token syntax = root.Find("Syntax");
List<Token> synflw = new List<Token>();
foreach (Token f in srcs.Follows)
{
if (f.Group == "SourcePath") { continue; }
if (f.Group == "SourceText") { synflw.Add(analyzer.Run(f.Value, f.First.Value)); }
}
syntax.Follows = synflw.ToArray();
}
public static void Check(Token root)
{
if (root == null) { throw new ArgumentNullException("args"); }
if (0 == root.Select("CompileOptions").Length) { throw new ArgumentException("No @CompileOptions Token"); }
if (1 < root.Select("CompileOptions").Length) { throw new ArgumentException("Too many @CompileOptions Token"); }
if (0 == root.Select("Sources").Length || 0 == root.Find("Sources").Follows.Length)
{ throw new ArgumentException("No source filename is specified to command line parameter"); }
if (1 < root.Select("Sources").Length) { throw new ArgumentException("Too many @Sources Token"); }
if (0 == root.Select("CompileOptions/@out").Length)
{
if (0 == root.Select("Sources").Length
|| 0 == root.Find("Sources").Follows.Length)
{
throw new ArgumentException("Cannot omit source path when out option was omitted");
}
}
if (1 < root.Select("CompileOptions/out").Length) { throw new ArgumentException("Too many out options are specified to command line parameter"); }
if (1 == root.Select("Sources").Length)
{
foreach (Token p in root.Select("Sources/SourcePath"))
{
if (false == File.Exists(p.Value))
{
if (false == File.Exists(p.Value + ".nana"))
{ throw new FileNotFoundException("Source file was not found", p.Value); }
else
{ p.Value += ".nana"; }
}
}
}
}
public void Compile(Token root)
{
Prepare(root);
Token srcs = root.Find("Sources");
// append SourceText if it's SourcePath
ReadSourceFiles(root);
AnalyzeSyntax(root);
AfterSyntaxAnalyze(root);
Env env = AnalyzeSemantic(root);
AfterSemanticAnalyze(root, env);
IMRGenerator imrgen = new IMRGenerator();
imrgen.GenerateIMR(env.Ap);
Token code = root.Find("Code");
CodeGenerator codegen = new CodeGenerator();
code.Value = codegen.GenerateCode(env);
}
public static void ReadSourceFiles(Token root)
{
Token srcs = root.Find("Sources");
UTF8Encoding utf8 = new UTF8Encoding(false /* no byte order mark */);
List<Token> srcsflw = new List<Token>();
foreach (Token f in srcs.Follows)
{
srcsflw.Add(f);
if (f.Group == "SourceText")
{
f.First = new Token("");
continue;
}
if (f.Group == "SourcePath")
{
string text = File.ReadAllText(f.Value, utf8);
Token txtt = new Token(text, "SourceText");
txtt.First = f;
srcsflw.Add(txtt);
}
}
srcs.Follows = srcsflw.ToArray();
}