void GenerateCode(Type type)
{
if (type.IsGenericType && !type.IsGenericTypeDefinition)
return; // generate nothing.
var implprops = new List<PropertyInfo> ();
var miscprops = new List<PropertyInfo> ();
foreach (var p in type.GetProperties (BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly)) {
if (targets.Contains (p.PropertyType) && !p.PropertyType.IsEnum)
implprops.Add (p);
else
miscprops.Add (p);
}
output.WriteLine ("// generic ordinal type for " + type);
string template = @"
public {10}partial class {0} : {1} {2}
{{
{7} impl;
// constructor, if not abstract.
{9}
// impl-to-wrapper constructor
internal protected {8} ({7} impl) {6}
{{
this.impl = impl;
{11}
Initialize ();
}}
// initializer
void Initialize ()
{{
// repeat for all auto (new-Android-type) properties
{3}
}}
// explicit conversion operator
public static explicit operator {7} ({0} source)
{{
return source.impl;
}}
// For a property whose type is wrapper for Android type, just make it auto property (use private set for get-only ones)
{4}
// Non-Android properties follow.
{5}
}}
";
var actx = android_ass.GetType ("Android.Content.Context");
var aaset = android_ass.GetType ("Android.Util.IAttributeSet");
// somehow GetConstructor() returns weird results, so this workarounds that.
string args =
type.GetConstructors ().Any (c => c.GetParameters ().Length == 1 && c.GetParameters () [0].ParameterType.FullName == actx.FullName) ? "XamlView.CurrentContext" :
type.GetConstructors ().Any (c => c.GetParameters ().Length == 2 && c.GetParameters () [0].ParameterType.FullName == actx.FullName && c.GetParameters () [1].ParameterType.FullName == aaset.FullName) ? "XamlView.CurrentContext, null" :
"";
//if (type.Name == "SlidingDrawer") foreach (var ccc in type.GetConstructors ()) Console.WriteLine ("!!!! " + ccc + " / " + type.GetConstructor (new Type [] {actx}).GetParameters ().Length);
string publicConstructor = type.IsAbstract ? String.Empty : String.Format (@"
public {0} ()
: this (new {1} ({2}))
{{
}}", type.NonGenericName (), type.CSFullName (), args);
string templateInit = @"
if (impl.{0} != null)
{0} = Extensions.GetWrappedItem<{1}> (impl.{0});";
var isw = new StringWriter () { NewLine = "\n" };
foreach (var p in implprops)
if (!p.IsAbstract ())
isw.WriteLine (templateInit, p.Name, p.PropertyType.CSName ());
string templateImplProp = @"
public {3}{0} {1} {{ get; {2}set; }}";
var dpsw = new StringWriter () { NewLine = "\n" };
foreach (var p in implprops)
dpsw.WriteLine (templateImplProp, p.PropertyType.CSSwitchName (), p.Name, p.IsSetterPublic () ? null : "internal ", GetModifier (p));
string templateOrdProp1 = @"
public {3}{0} {1} {{
get {{ return {4}; }}
{2}
}}";
string templateOrdProp2 = @"
public {3}{0} {1} {{ get; {5} }}";
var nsw = new StringWriter () { NewLine = "\n" };
foreach (var p in miscprops) {
var setter = String.Format ("set {{ impl.{0} = value; }}", p.Name);
nsw.WriteLine (p.IsAbstract () ? templateOrdProp2 : templateOrdProp1, p.PropertyType.CSSwitchName (), p.Name, p.IsSetterPublic () ? setter : null, GetModifier (p), GetValueExpression (p), p.IsSetterPublic () ? "set;" : null);
}
string gconsts = null;
foreach (var arg in type.GetGenericArguments ()) {
var gca = String.Join (",", (from t in arg.GetGenericParameterConstraints () select t.CSSwitchName ()).ToArray ());
gconsts += String.IsNullOrEmpty (gca) ? null : "where " + arg.Name + " : " + gca;
}
// FIXME: write custom attributes
bool callBase = targets.Contains (type.BaseType);
output.WriteLine (template, type.CSName (), type.BaseType.CSSwitchName (), gconsts, isw, dpsw, nsw, callBase ? " : base (impl)" : null, type.CSFullName (), type.NonGenericName (), publicConstructor, type.IsAbstract ? "abstract " : null, callBase ? null : "XamlView.Register (impl, this);");
}