static void Demo5(CodeCompileUnit ccu)
{
// once again, we need one of these
var res = new CodeDomResolver();
res.CompileUnits.Add(ccu);
res.Refresh();
// we happen to know Program is the 1st type in the 2nd namespace*
var prg = ccu.Namespaces[1].Types[0];
// we need the scope where we're at
var scope = res.GetScope(prg);
// because our binder attaches to it
var binder = new CodeDomBinder(scope);
// now get all the methods with the specified name and flags
var members = binder.GetMethodGroup(prg, "TestOverload", BindingFlags.Public | BindingFlags.Static);
Console.WriteLine("There are {0} TestOverload method overloads.", members.Length);
// try selecting one that takes a single string parameter
var argTypes1 = new CodeTypeReference[] { new CodeTypeReference(typeof(string)) };
var m = binder.SelectMethod(BindingFlags.Public | BindingFlags.Static, members, argTypes1, null);
if (null != m)
{
Console.WriteLine("Select TestOverload(string) returned:");
_DumpMethod(m);
}
else
{
Console.WriteLine("Unable to bind to method");
}
// try selecting one that takes a single it parameter
var argTypes2 = new CodeTypeReference[] { new CodeTypeReference(typeof(int)) };
m = binder.SelectMethod(BindingFlags.Public | BindingFlags.Static, members, argTypes2, null);
if (null != m)
{
Console.WriteLine("Select TestOverload(int) returned:");
_DumpMethod(m);
}
else
{
Console.WriteLine("Unable to bind to method");
}
Console.WriteLine("Press any key...");
Console.ReadKey();
Console.Clear();
}
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 void _Patch(CodeMemberMethod meth, CodeDomVisitContext ctx, CodeDomResolver resolver)
{
if (null != meth)
{
// TODO: make sure the member is actually public
if (null == meth.PrivateImplementationType)
{
var scope = resolver.GetScope(meth);
var td = scope.DeclaringType;
var binder = new CodeDomBinder(scope);
for (int ic = td.BaseTypes.Count, i = 0; i < ic; ++i)
{
var ctr = td.BaseTypes[i];
var t = resolver.TryResolveType(ctr, scope);
if (null != t)
{
var ma = binder.GetMethodGroup(t, meth.Name, BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly);
if (0 < ma.Length)
{
var isIface = false;
var ttd = t as CodeTypeDeclaration;
if (null != ttd)
{
isIface = ttd.IsInterface;
}
else
{
var rrt = t as Type;
isIface = rrt.IsInterface;
}
if (isIface)
{
var m = binder.SelectMethod(BindingFlags.Instance | BindingFlags.Public | BindingFlags.DeclaredOnly, ma, _GetParameterTypes(meth.Parameters), null);
if (null != m)
{
meth.ImplementationTypes.Add(ctr);
}
}
}
}
}
}
meth.UserData.Remove("slang:unresolved");
if ("Main" == meth.Name && (meth.Attributes & MemberAttributes.ScopeMask) == MemberAttributes.Static)
{
if (0 == meth.Parameters.Count && null == meth.ReturnType || "System.Void" == meth.ReturnType.BaseType)
{
var epm = new CodeEntryPointMethod();
epm.Attributes = meth.Attributes;
epm.LinePragma = meth.LinePragma;
epm.StartDirectives.AddRange(meth.StartDirectives);
epm.EndDirectives.AddRange(meth.EndDirectives);
epm.Comments.AddRange(meth.Comments);
epm.CustomAttributes.AddRange(meth.CustomAttributes);
epm.ReturnTypeCustomAttributes.AddRange(meth.ReturnTypeCustomAttributes);
epm.TypeParameters.AddRange(meth.TypeParameters);
epm.PrivateImplementationType = meth.PrivateImplementationType;
epm.ImplementationTypes.AddRange(meth.ImplementationTypes);
epm.Name = meth.Name;
epm.Statements.AddRange(meth.Statements);
CodeDomVisitor.ReplaceTarget(ctx, epm);
}
}
//return;
}
}