private bool Interpolate(MethodDefinition method, ILProcessor ilgen, ILCursor cursor)
{
var str = (string)cursor.current.Operand;
var regex = new Regex("{{([a-zA-Z_0_9@]+)}}");
var matches = regex.Matches(str);
if (matches.Count == 0)
{
return(false);
}
var localMap = new Dictionary <string, VariableDefinition>();
var propertyMap = new Dictionary <string, PropertyDefinition>();
var fieldMap = new Dictionary <string, FieldDefinition>();
foreach (var variable in method.Body.Variables)
{
localMap[variable.GetVariableName(method)] = variable;
}
foreach (var property in method.DeclaringType.Properties)
{
propertyMap[property.Name] = property;
}
foreach (var field in method.DeclaringType.Fields)
{
fieldMap[field.Name] = field;
}
var interpolatedVariable = new VariableDefinition(Global.module.TypeSystem.String);
method.Body.Variables.Add(interpolatedVariable);
var offset = 0;
var instOffset = cursor.current;
cursor.Emit(
ilgen.Create(OpCodes.Ldstr, ""));
foreach (Match match in matches)
{
var targetVariableName = match.Groups[1].Value;
ILdable targetVariable = null;
if (localMap.ContainsKey(targetVariableName))
{
targetVariable = new VariableLd(localMap[targetVariableName]);
}
else if (propertyMap.ContainsKey(targetVariableName))
{
targetVariable = new PropertyLd(propertyMap[targetVariableName]);
}
else if (fieldMap.ContainsKey(targetVariableName))
{
targetVariable = new FieldLd(fieldMap[targetVariableName]);
}
var prev = str.Substring(offset, match.Index - offset);
// loc = loc + prev
cursor.Emit(
ilgen.Create(OpCodes.Ldstr, prev),
ilgen.CreateCallStringConcat());
bool toStringDirect = false;
try
{
var resolvedTargetType = targetVariable.type.Resolve();
if (resolvedTargetType.IsSealed ||
resolvedTargetType.IsValueType)
{
var toStringMethod = method.Module
.Import(resolvedTargetType.Methods.First(x => x.Name == nameof(Object.ToString)));
if (targetVariable.type.IsValueType)
{
cursor.Emit(targetVariable.Lda(ilgen));
}
else
{
cursor.Emit(targetVariable.Ld(ilgen));
}
cursor.Emit(ilgen.Create(OpCodes.Call, toStringMethod));
toStringDirect = true;
}
}
catch (Exception e) { }
if (toStringDirect == false)
{
// loc = loc + capturedVar.ToString()
if (targetVariable.type.IsValueType)
{
// (object)capturedVar
cursor.Emit(targetVariable.Ld(ilgen));
cursor.Emit(ilgen.Create(OpCodes.Box, targetVariable.type));
}
else
{
cursor.Emit(targetVariable.Ld(ilgen));
}
cursor.Emit(ilgen.Create(OpCodes.Callvirt,
Net2Resolver.GetMethod(nameof(Object), nameof(Object.ToString))));
}
cursor.Emit(ilgen.CreateCallStringConcat());
offset = match.Index + match.Length;
}
cursor.Emit(ilgen.Create(OpCodes.Stloc, interpolatedVariable));
// 남은 데이터
if (offset != str.Length)
{
var prev = str.Substring(offset, str.Length - offset);
cursor.Emit(
ilgen.Create(OpCodes.Ldloc, interpolatedVariable),
ilgen.Create(OpCodes.Ldstr, prev),
ilgen.CreateCallStringConcat(),
ilgen.Create(OpCodes.Stloc, interpolatedVariable));
}
cursor.Emit(ilgen.Create(OpCodes.Ldloc, interpolatedVariable));
return(true);
}