public static CodeCompileUnit Demo1()
{
// evaluates a simple expression
var res = new CodeDomResolver();
Console.WriteLine(res.Evaluate(SlangParser.ParseExpression("5*4-7")));
// takes this file and get a codedom from it
var ccu = SlangParser.ReadCompileUnitFrom("..\\..\\Demo1.cs");
ccu.ReferencedAssemblies.Add("CodeDomGoKit.dll");
ccu.ReferencedAssemblies.Add(typeof(CodeObject).Assembly.GetName().ToString());
// now patch the parsed codedom so it's correct
// NOTE: slang can't actually bind to this because it is a paramarray method
// but we don't care here because it's not necessary. Slang only binds to what
// it needs to and we never need the return type anyway (which is void)
SlangPatcher.Patch(ccu);
// now write it out in VB
Console.WriteLine(CodeDomUtility.ToString(ccu, "vb"));
// return the code we generated so we can use it for other demos
// yay recycling
Console.WriteLine("Press any key...");
Console.ReadKey();
Console.Clear();
return(ccu);
}
static void RunResolver()
{
byte[] data;
using (var stream = File.OpenRead(@"myfile.bin"))
{
data = new byte[(int)stream.Length];
stream.Read(data, 0, data.Length);
}
// create a resolver
var res = new CodeDomResolver();
// read the resolver sample into the compile unit
CodeCompileUnit ccu;
using (var stm = File.OpenRead(@"..\..\Resolver.cs"))
ccu = SlangParser.ReadCompileUnitFrom(stm);
// remember to patch it!
SlangPatcher.Patch(ccu);
Console.Error.WriteLine(CU.ToString(ccu));
// add the compile unit to the resolver
res.CompileUnits.Add(ccu);
// prepare the resolver
// any time you add compile units you'll need
// to call Refresh()
res.Refresh();
// go through all expressions in the
// graph and try to get their type
CodeDomVisitor.Visit(ccu, (ctx) => {
var expr = ctx.Target as CodeExpression;
if (null != expr)
{
// we want everything except CodeTypeReferenceExpression
var ctre = expr as CodeTypeReferenceExpression;
if (null == ctre)
{
// get the scope of the expression
var scope = res.GetScope(expr);
CodeTypeReference ctr = res.TryGetTypeOfExpression(expr, scope);
if (null != ctr)
{
Console.WriteLine(CU.ToString(expr) + " is type: " + CU.ToString(ctr));
Console.WriteLine("Scope Dump:");
Console.WriteLine(scope.ToString());
}
}
}
});
}
static void RunTemplate()
{
// compute the primes. algorithm borrowed
// from SLax at https://stackoverflow.com/questions/1510124/program-to-find-prime-numbers
var primesMax = 100;
var primesArr = Enumerable.Range(0, (int)Math.Floor(2.52 * Math.Sqrt(primesMax) / Math.Log(primesMax))).Aggregate(
Enumerable.Range(2, primesMax - 1).ToList(),
(result, index) =>
{
var bp = result[index]; var sqr = bp * bp;
result.RemoveAll(i => i >= sqr && i % bp == 0);
return(result);
}
).ToArray();
// read the template into the compile unit
CodeCompileUnit ccu;
using (var stm = File.OpenRead(@"..\..\Template.cs"))
ccu = SlangParser.ReadCompileUnitFrom(stm);
// patch it either before or after modifying it
SlangPatcher.Patch(ccu);
// find the target namespace and change it
var ns = ccu.TryGetNamespace("T_NAMESPACE");
ns.Name = "TestNS";
// find the target class
var type = ns.TryGetType("T_TYPE");
// change the name
type.Name = "TestPrimes";
// get the Primes field:
var primes = type.TryGetMember("Primes") as CodeMemberField;
// change the init expression to the primes array
primes.InitExpression = CU.Literal(primesArr);
// fixup any references to T_NAMESPACE or T_TYPE
CodeDomVisitor.Visit(ccu, (ctx) => {
var ctr = ctx.Target as CodeTypeReference;
if (null != ctr)
{
ctr.BaseType = ctr.BaseType.Replace("T_NAMESPACE", ns.Name).Replace("T_TYPE", type.Name);
}
});
// already patched prior
// SlangPatcher.Patch(ccu);
// now write the result out
Console.WriteLine(CU.ToString(ccu));
}
static void RunBinding()
{
// we'll need the resolver in a bit
var res = new CodeDomResolver();
// read the binding sample into the compile unit
CodeCompileUnit ccu;
using (var stm = File.OpenRead(@"..\..\Binding.cs"))
ccu = SlangParser.ReadCompileUnitFrom(stm);
// add the compile unit to the resolver
res.CompileUnits.Add(ccu);
// prepare the resolver
res.Refresh();
// get the first class available
var tdecl = ccu.Namespaces[1].Types[0];
// capture the scope at the typedecl level
var scope = res.GetScope(tdecl);
// create a new binder with that scope
var binder = new CodeDomBinder(scope);
// get the method group for Test(...)
var methodGroup = binder.GetMethodGroup(tdecl, "Test", BindingFlags.Public | BindingFlags.Instance);
// select the method that can take a string value
var m = binder.SelectMethod(BindingFlags.Public, methodGroup, new CodeTypeReference[] { new CodeTypeReference(typeof(string)) }, null);
Console.WriteLine(CU.ToString((CodeMemberMethod)m));
// select the method that can take a short value
// (closest match accepts int)
m = binder.SelectMethod(BindingFlags.Public, methodGroup, new CodeTypeReference[] { new CodeTypeReference(typeof(short)) }, null);
Console.WriteLine(CU.ToString((CodeMemberMethod)m));
}
static int Main(string[] args)
{
var result = 0;
string outputfile = null;
string codeclass = null;
string codenamespace = null;
string codelanguage = null;
string t4language = null;
string t4arguments = null;
bool noserialize = false;
bool ifstale = false;
bool mutable = false;
TextReader input = null;
TextWriter output = null;
try
{
var asms = new List <string>(args.Length);
var inputs = new List <string>(args.Length);
if (0 == args.Length)
{
_PrintUsage();
result = -1;
}
else if (args[0].StartsWith("/"))
{
throw new ArgumentException("Missing input file.");
}
else
{
int start = 0;
// process the command line args
for (start = 0; start < args.Length; ++start)
{
var a = args[start];
if (a.StartsWith("/"))
{
break;
}
inputs.Add(a);
}
for (var i = start; i < args.Length; ++i)
{
switch (args[i])
{
case "/output":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
outputfile = args[i];
break;
case "/language":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
codelanguage = args[i];
break;
case "/t4language":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
t4language = args[i];
break;
case "/t4args":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
t4arguments = args[i];
break;
case "/class":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
codeclass = args[i];
break;
case "/namespace":
if (args.Length - 1 == i) // check if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i; // advance
codenamespace = args[i];
break;
case "/asms":
if (args.Length - 1 == i) // check to see if we're at the end
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i].Substring(1)));
}
++i;
while (i < args.Length && !args[i].StartsWith("/"))
{
asms.Add(args[i]);
++i;
}
if (0 == asms.Count)
{
throw new ArgumentException(string.Format("The parameter \"{0}\" is missing an argument", args[i - 1].Substring(1)));
}
break;
case "/ifstale":
ifstale = true;
break;
case "/mutable":
mutable = true;
break;
case "/noserialize":
noserialize = true;
break;
default:
throw new ArgumentException(string.Format("Unknown switch {0}", args[i]));
}
}
// now build it.
if (string.IsNullOrEmpty(t4language))
{
t4language = "cs";
}
if (string.IsNullOrEmpty(codelanguage))
{
if (!string.IsNullOrEmpty(outputfile))
{
codelanguage = Path.GetExtension(outputfile);
if (codelanguage.StartsWith("."))
{
codelanguage = codelanguage.Substring(1);
}
}
if (string.IsNullOrEmpty(codelanguage))
{
codelanguage = "cs";
}
}
var stale = true;
if (ifstale && null != outputfile)
{
stale = false;
foreach (var f in inputs)
{
if (_IsStale(f, outputfile) || _IsStale(_CodeBase, outputfile))
{
stale = true;
break;
}
}
}
if (!stale)
{
Console.Error.WriteLine("{0} skipped cook of {1} because it was not stale.", _Name, outputfile);
}
else
{
// main build code here
if (null != outputfile)
{
Console.Error.Write("{0} is cooking {1}.", _Name, outputfile);
}
else
{
Console.Error.Write("{0} is cooking deslanged code.", _Name);
}
#region Load Builder
CodeCompileUnit builderCcu = null;
using (var stm = typeof(Program).Assembly.GetManifestResourceStream("Deslang.Shared.CodeDomBuilder.cs"))
{
builderCcu = SlangParser.ReadCompileUnitFrom(stm);
}
builderCcu.ReferencedAssemblies.Add(typeof(CodeObject).Assembly.GetName().ToString());
SlangPatcher.Patch(builderCcu);
#endregion
var donor = builderCcu.Namespaces[1].Types[0];
Console.Error.WriteLine();
var sb = new StringBuilder();
var sw = new StringWriter(sb);
var ccus = new CodeCompileUnit[inputs.Count];
var targs = new Dictionary <string, object>();
if (null != t4arguments)
{
var ta = t4arguments.Split('&');
for (var i = 0; i < ta.Length; i++)
{
var tap = ta[i].Split('=');
var n = tap[0];
object o = null;
if (1 < tap.Length)
{
o = Uri.UnescapeDataString(tap[1]);
}
targs[n] = o;
}
}
for (var i = 0; i < ccus.Length; i++)
{
var f = inputs[i];
sb.Clear();
input = new StreamReader(f);
SlangPreprocessor.Preprocess(input, sw, targs, t4language);
input.Close();
input = null;
var ccu = SlangParser.ParseCompileUnit(sw.ToString());
if (0 == i)
{
ccu.ReferencedAssemblies.AddRange(asms.ToArray());
ccu.ReferencedAssemblies.Add(typeof(CodeObject).Assembly.GetName().ToString());
}
ccus[i] = ccu;
}
// now our unpatched input is in ccus
SlangPatcher.Patch(ccus);
var co = SlangPatcher.GetNextUnresolvedElement(ccus);
int l = 0, c = 0;
long p = 0L;
if (null != co)
{
Console.Error.Write("Warning - input was not entirely resolved. Output may not be valid. Next unresolved element is: " + CodeDomUtility.ToString(co));
var o = co.UserData["slang:line"];
if (o is int)
{
l = (int)o;
}
o = co.UserData["slang:column"];
if (o is int)
{
c = (int)o;
}
o = co.UserData["slang:position"];
if (o is long)
{
p = (long)o;
}
}
if (l + c + p > 0)
{
Console.Error.WriteLine(" at line {0}, column {1}, position {2}", l, c, p);
}
else
{
Console.Error.WriteLine();
}
var ns = new CodeNamespace();
var ccuFinal = new CodeCompileUnit();
ccuFinal.Namespaces.Add(ns);
if (!noserialize)
{
// now they're patched. Let's serialize.
// create our namespace and compileunit.
if (string.IsNullOrEmpty(codeclass))
{
codeclass = "Deslanged";
}
var cls = new CodeTypeDeclaration(codeclass);
cls.IsClass = true;
cls.IsPartial = true;
cls.TypeAttributes = TypeAttributes.NotPublic;
for (var i = 0; i < ccus.Length; i++)
{
var ccuInit = C.Literal(ccus[i], new CodeDomTypeConverter());
V.Visit(ccuInit, (ctx) =>
{
var tr = ctx.Target as CodeTypeReference;
if (null != tr)
{
if (tr.BaseType.StartsWith("System.CodeDom."))
{
tr.BaseType = tr.BaseType.Substring(15);
}
else if (tr.BaseType.StartsWith("System.Reflection."))
{
tr.BaseType = tr.BaseType.Substring(18);
}
}
// look for our uses of codedombuilder
var mi = ctx.Target as CodeMethodInvokeExpression;
if (null != mi)
{
var tref = mi.Method.TargetObject as CodeTypeReferenceExpression;
if (null != tref)
{
if (0 == string.Compare("CD.CodeDomBuilder", tref.Type.BaseType, StringComparison.InvariantCulture))
{
mi.Method.TargetObject = C.TypeRef(codeclass);
// find the method in our donor type;
var m = C.GetByName(mi.Method.MethodName, donor.Members);
if (null != m) // if it hasn't already been moved
{
// move it
m.Name = "_" + m.Name;
m.Attributes = (m.Attributes & ~MemberAttributes.AccessMask) | MemberAttributes.Private;
donor.Members.Remove(m);
cls.Members.Add(m);
}
mi.Method.MethodName = "_" + mi.Method.MethodName;
}
}
}
});
var name = Path.GetFileNameWithoutExtension(inputs[i]);
if (mutable)
{
var fld = C.Field(typeof(CodeCompileUnit), name, MemberAttributes.Public | MemberAttributes.Static, ccuInit);
cls.Members.Add(fld);
}
else
{
var prop = C.Property(typeof(CodeCompileUnit), name, MemberAttributes.Public | MemberAttributes.Static);
prop.GetStatements.Add(C.Return(ccuInit));
cls.Members.Add(prop);
}
}
if (!string.IsNullOrEmpty(codenamespace))
{
ns.Name = codenamespace;
}
ns.Types.Add(cls);
ns.Imports.Add(new CodeNamespaceImport("System.CodeDom"));
ns.Imports.Add(new CodeNamespaceImport("System.Reflection"));
}
else
{
foreach (var ccu in ccus)
{
foreach (CodeDirective dir in ccu.StartDirectives)
{
ccuFinal.StartDirectives.Add(dir);
}
foreach (CodeDirective dir in ccu.EndDirectives)
{
ccuFinal.EndDirectives.Add(dir);
}
foreach (CodeAttributeDeclaration attr in ccu.AssemblyCustomAttributes)
{
ccuFinal.AssemblyCustomAttributes.Add(attr);
}
foreach (CodeNamespace cns in ccu.Namespaces)
{
var ccns = CodeDomUtility.GetByName(cns.Name, ccuFinal.Namespaces);
if (null == ccns)
{
ccns = new CodeNamespace();
ccns.Name = cns.Name;
ccuFinal.Namespaces.Add(ccns);
}
foreach (CodeNamespaceImport nsi in cns.Imports)
{
var found = false;
foreach (CodeNamespaceImport nnsi in ccns.Imports)
{
if (nnsi.Namespace.Equals(nsi.Namespace, StringComparison.Ordinal))
{
found = true;
break;
}
}
if (!found)
{
ccns.Imports.Add(nsi);
}
}
foreach (CodeCommentStatement ccs in cns.Comments)
{
ccns.Comments.Add(ccs);
}
foreach (CodeTypeDeclaration td in cns.Types)
{
ccns.Types.Add(td);
}
}
}
}
// we're ready with ccuFinal
var prov = CodeDomProvider.CreateProvider(codelanguage);
var opts = new CodeGeneratorOptions();
opts.BlankLinesBetweenMembers = false;
opts.VerbatimOrder = true;
if (null == outputfile)
{
output = Console.Out;
}
else
{
// open the file and truncate it if necessary
var stm = File.Open(outputfile, FileMode.Create);
stm.SetLength(0);
output = new StreamWriter(stm);
}
prov.GenerateCodeFromCompileUnit(ccuFinal, output, opts);
}
}
}
#if !DEBUG
catch (Exception ex)
{
result = _ReportError(ex);
}
#endif
finally
{
if (null != input)
{
input.Close();
input = null;
}
if (null != outputfile && null != output)
{
output.Close();
output = null;
}
}
return(result);
}
