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 Demo4(CodeCompileUnit ccu)
{
// create one of these lil guys
var res = new CodeDomResolver();
// add our code to it
res.CompileUnits.Add(ccu);
// give it a chance to build its information over our code
res.Refresh();
CodeDomVisitor.Visit(ccu, (ctx) => {
// for every expression...
var expr = ctx.Target as CodeExpression;
if (null != expr)
{
// except method reference expressions...
var mri = expr as CodeMethodReferenceExpression;
if (null != mri)
{
return;
}
// get the expression type
var type = res.TryGetTypeOfExpression(expr);
// write it along with the expression itself
Console.WriteLine(
"Expression type {0}: {1} is {2}",
expr.GetType().Name,
CodeDomUtility.ToString(expr),
null != type?CodeDomUtility.ToString(type):"unresolvable");
}
});
Console.WriteLine("Press any key...");
Console.ReadKey();
Console.Clear();
}
static void Demo2()
{
var sw = new StringWriter();
using (var sr = new StreamReader(@"..\..\Test.tt"))
SlangPreprocessor.Preprocess(sr, sw);
var ccu = SlangParser.ParseCompileUnit(sw.ToString());
SlangPatcher.Patch(ccu);
Console.WriteLine(CodeDomUtility.ToString(ccu));
Console.WriteLine("Press any key...");
Console.ReadKey();
Console.Clear();
}
static void _DumpMethod(object m)
{
// dump the method based on its type
// can either be a MethodInfo or a
// CodeMemberMethod
var mi = m as MethodInfo;
if (null != mi)
{
Console.WriteLine("{0}.{1}", mi.DeclaringType.Name, mi.Name);
return;
}
var mm = m as CodeMemberMethod;
Console.WriteLine(CodeDomUtility.ToString(mm));
}
static IList <CodeVariableDeclarationStatement> _TraceMember(CodeTypeMember m, CodeStatement t, out bool found)
{
var result = new List <CodeVariableDeclarationStatement>();
var cmm = m as CodeMemberMethod;
if (null != cmm)
{
foreach (CodeStatement tt in cmm.Statements)
{
Debug.WriteLine(CodeDomUtility.ToString(tt));
var r = _TraceStatement(tt, t, out found);
result.AddRange(r);
if (found)
{
return(result);
}
}
found = false;
return(new CodeVariableDeclarationStatement[0]);
}
var cmp = m as CodeMemberProperty;
if (null != cmp)
{
foreach (CodeStatement tt in cmp.GetStatements)
{
var r = _TraceStatement(tt, t, out found);
result.AddRange(r);
if (found)
{
return(result);
}
}
}
result.Clear(); // new scope
foreach (CodeStatement tt in cmp.SetStatements)
{
var r = _TraceStatement(tt, t, out found);
result.AddRange(r);
if (found)
{
return(result);
}
}
found = false;
return(new CodeVariableDeclarationStatement[0]);
}
static void Demo3(CodeCompileUnit ccu)
{
/// now let's take our code and modify it
CodeDomVisitor.Visit(ccu, (ctx) => {
// we're looking for a method invocation
var mi = ctx.Target as CodeMethodInvokeExpression;
if (null != mi)
{
// ... calling WriteLine
if ("WriteLine" == mi.Method?.MethodName)
{
// replace the passed in expression with "Hello world!"
mi.Parameters.Clear();
mi.Parameters.Add(new CodePrimitiveExpression("Hello world!"));
// done after the first WriteLine so we cancel
ctx.Cancel = true;
}
}
});
Console.WriteLine(CodeDomUtility.ToString(ccu));
Console.WriteLine("Press any key...");
Console.ReadKey();
Console.Clear();
}
static void Demo()
{
// note that in the real world cases, you'd need to use SlangPatcher.Patch()
// on whole compile units to get proper codedom objects back. This method is
// simply "close enough for government work" and may not work for languages
// other than VB
while (true)
{
Console.Write("Slang>");
var s = Console.ReadLine();
if (null != s)
{
s = s.Trim();
}
if (string.IsNullOrEmpty(s))
{
break;
}
var isStatement = s.EndsWith(";") || s.EndsWith("}");
CodeObject co = null;
try
{
if (isStatement)
{
co = SlangParser.ParseStatement(s, true);
}
else
{
co = SlangParser.ParseExpression(s);
}
}
catch (SlangSyntaxException ex)
{
Console.WriteLine("Error: " + ex.Message);
}
if (null != co)
{
var ccu = _RootCode(co);
try
{
SlangPatcher.Patch(ccu);
}
catch (Exception ex)
{
Console.WriteLine("Warning: Error resolving code - " + ex.Message);
}
var tc = new CodeDomTypeConverter();
var item = (ccu.Namespaces[0].Types[0].Members[0] as CodeMemberMethod).Statements[0];
if (!isStatement)
{
co = item;
var es = item as CodeExpressionStatement;
if (null != es)
{
co = es.Expression;
}
}
else
{
co = item;
}
s = CodeDomUtility.ToString(co);
s = s.Trim();
Console.Write("C#: ");
Console.WriteLine(s);
s = CodeDomUtility.ToString(co, "vb");
s = s.Trim();
Console.Write("VB: ");
Console.WriteLine(s);
s = CodeDomUtility.ToString(CodeDomUtility.Literal(co, tc));
s = s.Trim();
Console.Write("CodeDom: ");
Console.WriteLine(s);
if (null != SlangPatcher.GetNextUnresolvedElement(ccu))
{
Console.WriteLine("Warning: Not all of the code could be resolved.");
}
}
}
}
static void Demo6()
{
// load the xsd
XmlSchema xsd = null;
using (FileStream stream = new FileStream("..\\..\\Test.xsd", FileMode.Open, FileAccess.Read))
{
xsd = XmlSchema.Read(stream, null);
}
XmlSchemas xsds = new XmlSchemas();
xsds.Add(xsd);
xsds.Compile(null, true);
XmlSchemaImporter xsdImporter = new XmlSchemaImporter(xsds);
// create the codedom
CodeNamespace ns = new CodeNamespace();
CodeCompileUnit ccu = new CodeCompileUnit();
ccu.ReferencedAssemblies.Add(typeof(XmlTypeAttribute).Assembly.GetName().ToString());
ccu.Namespaces.Add(ns);
XmlCodeExporter codeExporter = new XmlCodeExporter(ns, ccu);
var maps = new List <XmlTypeMapping>();
foreach (XmlSchemaType schemaType in xsd.SchemaTypes.Values)
{
maps.Add(xsdImporter.ImportSchemaType(schemaType.QualifiedName));
}
foreach (XmlSchemaElement schemaElement in xsd.Elements.Values)
{
maps.Add(xsdImporter.ImportTypeMapping(schemaElement.QualifiedName));
}
foreach (XmlTypeMapping map in maps)
{
codeExporter.ExportTypeMapping(map);
}
var typeMap = new Dictionary <string, CodeTypeDeclaration>(StringComparer.InvariantCulture);
_FillTypeMap(ns, typeMap);
foreach (var kvp in typeMap)
{
var td = kvp.Value;
var propElem = new HashSet <string>(StringComparer.InvariantCulture);
var propAttr = new HashSet <string>(StringComparer.InvariantCulture);
var fldMap = new Dictionary <string, string>();
_FillPropFldMaps(td, propElem, propAttr, fldMap);
// fix up our xml type attribute
foreach (CodeAttributeDeclaration d in td.CustomAttributes)
{
if (0 == string.Compare(d.AttributeType.BaseType, "System.Xml.Serialization.XmlAttributeAttribute", StringComparison.InvariantCulture))
{
d.Arguments.Insert(0, new CodeAttributeArgument("TypeName", new CodePrimitiveExpression(td.Name)));
break;
}
}
// correct the type name
td.Name = _ToNetCase(td.Name);
CodeDomVisitor.Visit(td, (ctx) =>
{
var fldRef = ctx.Target as CodeFieldReferenceExpression;
if (null != fldRef && fldMap.ContainsKey(fldRef.FieldName))
{
fldRef.FieldName = _ToPrivFldName(fldRef.FieldName);
return;
}
var fld = ctx.Target as CodeMemberField;
if (null != fld && fldMap.ContainsKey(fld.Name))
{
fld.Name = _ToPrivFldName(fld.Name);
var ctr = fld.Type;
if (0 < ctr.ArrayRank)
{
ctr = ctr.ArrayElementType;
}
if (!CodeDomResolver.IsPrimitiveType(ctr))
{
ctr.BaseType = _ToNetCase(ctr.BaseType);
}
}
var prop = ctx.Target as CodeMemberProperty;
if (null != prop && (propElem.Contains(prop.Name) || propAttr.Contains(prop.Name)))
{
var n = prop.Name;
var ctr = prop.Type;
if (0 < ctr.ArrayRank)
{
ctr = ctr.ArrayElementType;
}
if (!CodeDomResolver.IsPrimitiveType(ctr))
{
ctr.BaseType = _ToNetCase(ctr.BaseType);
}
prop.Name = _ToNetCase(n);
if (propElem.Contains(n))
{
foreach (CodeAttributeDeclaration a in prop.CustomAttributes)
{
if (0 == string.Compare("System.Xml.Serialization.XmlElementAttribute", a.AttributeType.BaseType, StringComparison.InvariantCulture))
{
a.Arguments.Insert(0, new CodeAttributeArgument("ElementName", new CodePrimitiveExpression(n)));
break;
}
}
}
else
{
foreach (CodeAttributeDeclaration a in prop.CustomAttributes)
{
if (0 == string.Compare("System.Xml.Serialization.XmlAttributeAttribute", a.AttributeType.BaseType, StringComparison.InvariantCulture))
{
a.Arguments.Insert(0, new CodeAttributeArgument("AttributeName", new CodePrimitiveExpression(n)));
break;
}
}
}
}
});
}
// Check for invalid characters in identifiers
CodeGenerator.ValidateIdentifiers(ns);
// output the C# code
Console.WriteLine(CodeDomUtility.ToString(ccu));
}
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);
}
