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CodeGenerator.cs
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CodeGenerator.cs
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using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Text;
using generator.SourceWriters;
using Java.Interop.Tools.Generator;
using Xamarin.Android.Binder;
namespace MonoDroid.Generation
{
abstract class CodeGenerator
{
protected TextWriter writer;
protected CodeGenerationOptions opt;
public CodeGeneratorContext Context { get; } = new CodeGeneratorContext ();
protected CodeGenerator (TextWriter writer, CodeGenerationOptions options)
{
this.writer = writer;
opt = options;
}
internal virtual string GetAllInterfaceImplements () => "IJavaObject";
internal abstract void WriteClassHandle (ClassGen type, string indent, bool requireNew);
internal abstract void WriteClassHandle (InterfaceGen type, string indent, string declaringType);
internal abstract void WriteClassInvokerHandle (ClassGen type, string indent, string declaringType);
internal abstract void WriteInterfaceInvokerHandle (InterfaceGen type, string indent, string declaringType);
internal abstract void WriteConstructorIdField (Ctor ctor, string indent);
internal abstract void WriteConstructorBody (Ctor ctor, string indent, StringCollection call_cleanup);
internal abstract void WriteMethodIdField (Method method, string indent);
internal abstract void WriteMethodBody (Method method, string indent, GenBase type);
internal abstract void WriteFieldIdField (Field field, string indent);
internal abstract void WriteFieldGetBody (Field field, string indent, GenBase type);
internal abstract void WriteFieldSetBody (Field field, string indent, GenBase type);
public void WriteClass (ClassGen @class, string indent, GenerationInfo gen_info)
{
Context.ContextTypes.Push (@class);
Context.ContextGeneratedMethods = new List<Method> ();
gen_info.TypeRegistrations.Add (new KeyValuePair<string, string> (@class.RawJniName, @class.AssemblyQualifiedName));
bool is_enum = @class.base_symbol != null && @class.base_symbol.FullName == "Java.Lang.Enum";
if (is_enum)
gen_info.Enums.Add (@class.RawJniName.Replace ('/', '.') + ":" + @class.Namespace + ":" + @class.JavaSimpleName);
StringBuilder sb = new StringBuilder ();
foreach (ISymbol isym in @class.Interfaces) {
GenericSymbol gs = isym as GenericSymbol;
InterfaceGen gen = (gs == null ? isym : gs.Gen) as InterfaceGen;
if (gen != null && (gen.IsConstSugar (opt) || gen.RawVisibility != "public"))
continue;
if (sb.Length > 0)
sb.Append (", ");
sb.Append (opt.GetOutputName (isym.FullName));
}
string obj_type = null;
if (@class.base_symbol != null) {
GenericSymbol gs = @class.base_symbol as GenericSymbol;
obj_type = gs != null && gs.IsConcrete ? gs.GetGenericType (null) : opt.GetOutputName (@class.base_symbol.FullName);
}
writer.WriteLine ("{0}// Metadata.xml XPath class reference: path=\"{1}\"", indent, @class.MetadataXPathReference);
if (@class.IsDeprecated)
writer.WriteLine ("{0}[ObsoleteAttribute (@\"{1}\")]", indent, @class.DeprecatedComment);
writer.WriteLine ("{0}[global::Android.Runtime.Register (\"{1}\", DoNotGenerateAcw=true{2})]", indent, @class.RawJniName, @class.AdditionalAttributeString ());
if (@class.TypeParameters != null && @class.TypeParameters.Any ())
writer.WriteLine ("{0}{1}", indent, @class.TypeParameters.ToGeneratedAttributeString ());
string inherits = "";
if (@class.InheritsObject && obj_type != null) {
inherits = ": " + obj_type;
}
if (sb.Length > 0) {
if (string.IsNullOrEmpty (inherits))
inherits = ": ";
else
inherits += ", ";
}
writer.WriteLine ("{0}{1} {2}{3}{4}partial class {5} {6}{7} {{",
indent,
@class.Visibility,
@class.NeedsNew ? "new " : String.Empty,
@class.IsAbstract ? "abstract " : String.Empty,
@class.IsFinal ? "sealed " : String.Empty,
@class.Name,
inherits,
sb.ToString ());
writer.WriteLine ();
var seen = new HashSet<string> ();
WriteFields (@class.Fields, indent + "\t", @class, seen);
bool haveNested = false;
foreach (var iface in @class.GetAllImplementedInterfaces ()
.Except (@class.BaseGen == null
? new InterfaceGen [0]
: @class.BaseGen.GetAllImplementedInterfaces ())
.Where (i => i.Fields.Count > 0)) {
if (!haveNested) {
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic static class InterfaceConsts {{", indent);
haveNested = true;
}
writer.WriteLine ();
writer.WriteLine ("{0}\t\t// The following are fields from: {1}", indent, iface.JavaName);
WriteFields (iface.Fields, indent + "\t\t", iface, seen);
}
if (haveNested) {
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
}
foreach (GenBase nest in @class.NestedTypes) {
if (@class.BaseGen != null && @class.BaseGen.ContainsNestedType (nest))
if (nest is ClassGen)
(nest as ClassGen).NeedsNew = true;
WriteType (nest, indent + "\t", gen_info);
writer.WriteLine ();
}
// @class.InheritsObject is true unless @class refers to java.lang.Object or java.lang.Throwable. (see ClassGen constructor)
// If @class's base class is defined in the same api.xml file, then it requires the new keyword to overshadow the internal
// members of its baseclass since the two classes will be defined in the same assembly. If the base class is not from the
// same api.xml file, the new keyword is not needed because the internal access modifier already prevents it from being seen.
bool baseFromSameAssembly = @class?.BaseGen?.FromXml ?? false;
bool requireNew = @class.InheritsObject && baseFromSameAssembly;
WriteClassHandle (@class, indent, requireNew);
WriteClassConstructors (@class, indent + "\t");
WriteImplementedProperties (@class.Properties, indent + "\t", @class.IsFinal, @class);
WriteClassMethods (@class, indent + "\t");
if (@class.IsAbstract)
WriteClassAbstractMembers (@class, indent + "\t");
bool is_char_seq = false;
foreach (ISymbol isym in @class.Interfaces) {
if (isym is GenericSymbol) {
GenericSymbol gs = isym as GenericSymbol;
if (gs.IsConcrete) {
// FIXME: not sure if excluding default methods is a valid idea...
foreach (Method m in gs.Gen.Methods) {
if (m.IsInterfaceDefaultMethod || m.IsStatic)
continue;
if (m.IsGeneric)
WriteMethodExplicitIface (m, indent + "\t", gs);
}
var adapter = gs.Gen.AssemblyQualifiedName + "Invoker";
foreach (Property p in gs.Gen.Properties) {
if (p.Getter != null) {
if (p.Getter.IsInterfaceDefaultMethod || p.Getter.IsStatic)
continue;
}
if (p.Setter != null) {
if (p.Setter.IsInterfaceDefaultMethod || p.Setter.IsStatic)
continue;
}
if (p.IsGeneric)
WritePropertyExplicitInterface (p, indent + "\t", gs, adapter);
}
}
} else if (isym.FullName == "Java.Lang.ICharSequence")
is_char_seq = true;
}
if (is_char_seq)
WriteCharSequenceEnumerator (indent + "\t");
writer.WriteLine (indent + "}");
if (!@class.AssemblyQualifiedName.Contains ('/')) {
foreach (InterfaceExtensionInfo nestedIface in @class.GetNestedInterfaceTypes ())
WriteInterfaceExtensionsDeclaration (nestedIface.Type, indent, nestedIface.DeclaringType);
}
if (@class.IsAbstract) {
writer.WriteLine ();
WriteClassInvoker (@class, indent);
}
Context.ContextGeneratedMethods.Clear ();
Context.ContextTypes.Pop ();
}
public void WriteClassAbstractMembers (ClassGen @class, string indent)
{
foreach (InterfaceGen gen in @class.GetAllDerivedInterfaces ())
WriteInterfaceAbstractMembers (gen, @class, indent);
}
public void WriteClassConstructors (ClassGen @class, string indent)
{
if (@class.FullName != "Java.Lang.Object" && @class.InheritsObject) {
writer.WriteLine ("{0}{1} {2} (IntPtr javaReference, JniHandleOwnership transfer) : base (javaReference, transfer) {{}}", indent, @class.IsFinal ? "internal" : "protected", @class.Name);
writer.WriteLine ();
}
foreach (Ctor ctor in @class.Ctors) {
if (@class.IsFinal && ctor.Visibility == "protected")
continue;
ctor.Name = @class.Name;
WriteConstructor (ctor, indent, @class.InheritsObject, @class);
}
}
public void WriteClassInvoker (ClassGen @class, string indent)
{
StringBuilder sb = new StringBuilder ();
foreach (InterfaceGen igen in @class.GetAllDerivedInterfaces ())
if (igen.IsGeneric)
sb.Append (", " + opt.GetOutputName (igen.FullName));
writer.WriteLine ("{0}[global::Android.Runtime.Register (\"{1}\", DoNotGenerateAcw=true{2})]", indent, @class.RawJniName, @class.AdditionalAttributeString ());
writer.WriteLine ("{0}internal partial class {1}Invoker : {1}{2} {{", indent, @class.Name, sb.ToString ());
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic {1}Invoker (IntPtr handle, JniHandleOwnership transfer) : base (handle, transfer) {{}}", indent, @class.Name);
writer.WriteLine ();
WriteClassInvokerHandle (@class, indent + "\t", @class.Name + "Invoker");
HashSet<string> members = new HashSet<string> ();
WriteClassInvokerMembers (@class, indent + "\t", members);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
public void WriteClassInvokerMembers (ClassGen @class, string indent, HashSet<string> members)
{
WriteClassPropertyInvokers (@class, @class.Properties, indent, members);
WriteClassMethodInvokers (@class, @class.Methods, indent, members, null);
foreach (InterfaceGen iface in @class.GetAllDerivedInterfaces ()) {
// if (iface.IsGeneric)
// continue;
WriteClassPropertyInvokers (@class, iface.Properties.Where (p => !@class.ContainsProperty (p.Name, false, false)), indent, members);
WriteClassMethodInvokers (@class, iface.Methods.Where (m => (opt.SupportDefaultInterfaceMethods || !m.IsInterfaceDefaultMethod) && !@class.ContainsMethod (m, false, false) && !@class.IsCovariantMethod (m) && !@class.ExplicitlyImplementedInterfaceMethods.Contains (m.GetSignature ())), indent, members, iface);
}
if (@class.BaseGen != null && @class.BaseGen.FullName != "Java.Lang.Object")
WriteClassInvokerMembers (@class.BaseGen, indent, members);
}
public void WriteClassMethodInvokers (ClassGen @class, IEnumerable<Method> methods, string indent, HashSet<string> members, InterfaceGen gen)
{
foreach (Method m in methods) {
string sig = m.GetSignature ();
if (members.Contains (sig))
continue;
members.Add (sig);
if (!m.IsAbstract)
continue;
if (@class.IsExplicitlyImplementedMethod (sig)) {
// sw.WriteLine ("// This invoker explicitly implements this method");
WriteMethodExplicitInterfaceInvoker (m, indent, gen);
} else {
// sw.WriteLine ("// This invoker overrides {0} method", gen.FullName);
m.IsOverride = true;
WriteMethod (m, indent, @class, false);
m.IsOverride = false;
}
}
}
public void WriteClassMethods (ClassGen @class, string indent)
{
var methodsToDeclare = @class.Methods.AsEnumerable ();
// This does not exclude overrides (unlike virtual methods) because we're not sure
// if calling the base interface default method via JNI expectedly dispatches to
// the derived method.
var defaultMethods = @class.GetAllDerivedInterfaces ()
.SelectMany (i => i.Methods)
.Where (m => m.IsInterfaceDefaultMethod)
.Where (m => !@class.ContainsMethod (m, false, false));
var overrides = defaultMethods.Where (m => m.OverriddenInterfaceMethod != null);
var overridens = defaultMethods.Where (m => overrides.Where (_ => _.Name == m.Name && _.JniSignature == m.JniSignature)
.Any (mm => mm.DeclaringType.GetAllDerivedInterfaces ().Contains (m.DeclaringType)));
methodsToDeclare = opt.SupportDefaultInterfaceMethods ? methodsToDeclare : methodsToDeclare.Concat (defaultMethods.Except (overridens)).Where (m => m.DeclaringType.IsGeneratable);
foreach (var m in methodsToDeclare) {
bool virt = m.IsVirtual;
m.IsVirtual = !@class.IsFinal && virt;
if (m.IsAbstract && m.OverriddenInterfaceMethod == null && (opt.SupportDefaultInterfaceMethods || !m.IsInterfaceDefaultMethod))
WriteMethodAbstractDeclaration (m, indent, null, @class);
else
WriteMethod (m, indent, @class, true);
Context.ContextGeneratedMethods.Add (m);
m.IsVirtual = virt;
}
var methods = @class.Methods.Concat (@class.Properties.Where (p => p.Setter != null).Select (p => p.Setter));
foreach (InterfaceGen type in methods.Where (m => m.IsListenerConnector && m.EventName != String.Empty).Select (m => m.ListenerType).Distinct ()) {
writer.WriteLine ("#region \"Event implementation for {0}\"", type.FullName);
WriteInterfaceListenerEventsAndProperties (type, indent, @class);
writer.WriteLine ("#endregion");
}
}
public void WriteImplementedProperties (IEnumerable<Property> targetProperties, string indent, bool isFinal, GenBase gen)
{
foreach (var prop in targetProperties) {
bool get_virt = prop.Getter.IsVirtual;
bool set_virt = prop.Setter == null ? false : prop.Setter.IsVirtual;
prop.Getter.IsVirtual = !isFinal && get_virt;
if (prop.Setter != null)
prop.Setter.IsVirtual = !isFinal && set_virt;
if (prop.Getter.IsAbstract)
WritePropertyAbstractDeclaration (prop, indent, gen);
else
WriteProperty (prop, gen, indent);
prop.Getter.IsVirtual = get_virt;
if (prop.Setter != null)
prop.Setter.IsVirtual = set_virt;
}
}
public void WriteClassPropertyInvokers (ClassGen @class, IEnumerable<Property> properties, string indent, HashSet<string> members)
{
foreach (Property prop in properties) {
if (members.Contains (prop.Name))
continue;
members.Add (prop.Name);
if ((prop.Getter != null && !prop.Getter.IsAbstract) ||
(prop.Setter != null && !prop.Setter.IsAbstract))
continue;
WriteProperty (prop, @class, indent, false, true);
}
}
internal void WriteCharSequenceEnumerator (string indent)
{
writer.WriteLine ("{0}System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator ()", indent);
writer.WriteLine ("{0}{{", indent);
writer.WriteLine ("{0}\treturn GetEnumerator ();", indent);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
writer.WriteLine ("{0}public System.Collections.Generic.IEnumerator<char> GetEnumerator ()", indent);
writer.WriteLine ("{0}{{", indent);
writer.WriteLine ("{0}\tfor (int i = 0; i < Length(); i++)", indent);
writer.WriteLine ("{0}\t\tyield return CharAt (i);", indent);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
internal virtual void WriteConstructor (Ctor constructor, string indent, bool useBase, ClassGen type)
{
string jni_sig = constructor.JniSignature;
bool gen_string_overload = constructor.Parameters.HasCharSequence && !type.ContainsCtor (jni_sig.Replace ("java/lang/CharSequence", "java/lang/String"));
System.Collections.Specialized.StringCollection call_cleanup = constructor.Parameters.GetCallCleanup (opt);
WriteConstructorIdField (constructor, indent);
writer.WriteLine ("{0}// Metadata.xml XPath constructor reference: path=\"{1}/constructor[@name='{2}'{3}]\"", indent, type.MetadataXPathReference, type.JavaSimpleName, constructor.Parameters.GetMethodXPathPredicate ());
writer.WriteLine ("{0}[Register (\"{1}\", \"{2}\", \"{3}\"{4})]", indent, ".ctor", jni_sig, String.Empty, constructor.AdditionalAttributeString ());
if (constructor.Deprecated != null)
writer.WriteLine ("{0}[Obsolete (@\"{1}\")]", indent, constructor.Deprecated.Replace ("\"", "\"\""));
if (constructor.CustomAttributes != null)
writer.WriteLine ("{0}{1}", indent, constructor.CustomAttributes);
if (constructor.Annotation != null)
writer.WriteLine ("{0}{1}", indent, constructor.Annotation);
writer.WriteLine ("{0}{1} unsafe {2} ({3})", indent, constructor.Visibility, constructor.Name, constructor.GetSignature (opt));
writer.WriteLine ("{0}\t: {1} (IntPtr.Zero, JniHandleOwnership.DoNotTransfer)", indent, useBase ? "base" : "this");
writer.WriteLine ("{0}{{", indent);
WriteConstructorBody (constructor, indent + "\t", call_cleanup);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
if (gen_string_overload) {
writer.WriteLine ("{0}[Register (\"{1}\", \"{2}\", \"{3}\"{4})]", indent, ".ctor", jni_sig, String.Empty, constructor.AdditionalAttributeString ());
writer.WriteLine ("{0}{1} unsafe {2} ({3})", indent, constructor.Visibility, constructor.Name, constructor.GetSignature (opt).Replace ("Java.Lang.ICharSequence", "string").Replace ("global::string", "string"));
writer.WriteLine ("{0}\t: {1} (IntPtr.Zero, JniHandleOwnership.DoNotTransfer)", indent, useBase ? "base" : "this");
writer.WriteLine ("{0}{{", indent);
WriteConstructorBody (constructor, indent + "\t", call_cleanup);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
}
public bool WriteFields (List<Field> fields, string indent, GenBase gen, HashSet<string> seen = null)
{
bool needsProperty = false;
foreach (Field f in fields) {
if (gen.ContainsName (f.Name)) {
Report.LogCodedWarning (0, SourceWriterExtensions.GetFieldCollisionMessage (gen, f), f, gen.FullName, f.Name, gen.JavaName);
continue;
}
if (seen != null && seen.Contains (f.Name)) {
Report.LogCodedWarning (0, Report.WarningDuplicateField, f, gen.FullName, f.Name, gen.JavaName);
continue;
}
if (f.Validate (opt, gen.TypeParameters, Context)) {
if (seen != null)
seen.Add (f.Name);
needsProperty = needsProperty || f.NeedsProperty;
writer.WriteLine ();
WriteField (f, indent, gen);
}
}
return needsProperty;
}
internal virtual void WriteField (Field field, string indent, GenBase type)
{
if (field.IsEnumified)
writer.WriteLine ("[global::Android.Runtime.GeneratedEnum]");
if (field.NeedsProperty) {
string fieldType = field.Symbol.IsArray ? "IList<" + field.Symbol.ElementType + ">" + opt.NullableOperator : opt.GetTypeReferenceName (field);
WriteFieldIdField (field, indent);
writer.WriteLine ();
writer.WriteLine ("{0}// Metadata.xml XPath field reference: path=\"{1}/field[@name='{2}']\"", indent, type.MetadataXPathReference, field.JavaName);
writer.WriteLine ("{0}[Register (\"{1}\"{2})]", indent, field.JavaName, field.AdditionalAttributeString ());
if (field.IsDeprecated) {
var deprecatedError = field.IsDeprecatedError ? ", error: true" : string.Empty;
writer.WriteLine ("{0}[Obsolete (\"{1}\"{2})]", indent, field.DeprecatedComment, deprecatedError);
}
writer.WriteLine ("{0}{1} {2}{3} {4} {{", indent, field.Visibility, field.IsStatic ? "static " : String.Empty, fieldType, field.Name);
writer.WriteLine ("{0}\tget {{", indent);
WriteFieldGetBody (field, indent + "\t\t", type);
writer.WriteLine ("{0}\t}}", indent);
if (!field.IsConst) {
writer.WriteLine ("{0}\tset {{", indent);
WriteFieldSetBody (field, indent + "\t\t", type);
writer.WriteLine ("{0}\t}}", indent);
}
writer.WriteLine ("{0}}}", indent);
} else {
writer.WriteLine ("{0}// Metadata.xml XPath field reference: path=\"{1}/field[@name='{2}']\"", indent, type.MetadataXPathReference, field.JavaName);
writer.WriteLine ("{0}[Register (\"{1}\"{2})]", indent, field.JavaName, field.AdditionalAttributeString ());
if (field.IsDeprecated) {
var deprecatedError = field.IsDeprecatedError ? ", error: true" : string.Empty;
writer.WriteLine ("{0}[Obsolete (\"{1}\"{2})]", indent, field.DeprecatedComment, deprecatedError);
}
if (field.Annotation != null)
writer.WriteLine ("{0}{1}", indent, field.Annotation);
// the Value complication is due to constant enum from negative integer value (C# compiler requires explicit parenthesis).
writer.WriteLine ("{0}{1} const {2} {3} = ({2}) {4};", indent, field.Visibility, opt.GetOutputName (field.Symbol.FullName), field.Name, field.Value.Contains ('-') && field.Symbol.FullName.Contains ('.') ? '(' + field.Value + ')' : field.Value);
}
}
public void WriteInterface (InterfaceGen @interface, string indent, GenerationInfo gen_info)
{
Context.ContextTypes.Push (@interface);
// Generate sibling types for nested types we don't want to nest
foreach (var nest in @interface.NestedTypes.Where (t => t.Unnest)) {
WriteType (nest, indent, gen_info);
writer.WriteLine ();
}
WriteInterfaceImplementedMembersAlternative (@interface, indent);
// If this interface is just fields and we can't generate any of them
// then we don't need to write the interface
if (@interface.IsConstSugar (opt) && @interface.GetGeneratableFields (opt).Count () == 0)
return;
WriteInterfaceDeclaration (@interface, indent, gen_info);
// If this interface is just constant fields we don't need to write all the invoker bits
if (@interface.IsConstSugar (opt))
return;
if (!@interface.AssemblyQualifiedName.Contains ('/'))
WriteInterfaceExtensionsDeclaration (@interface, indent, null);
WriteInterfaceInvoker (@interface, indent);
WriteInterfaceEventHandler (@interface, indent);
Context.ContextTypes.Pop ();
}
// For each interface, generate either an abstract method or an explicit implementation method.
public void WriteInterfaceAbstractMembers (InterfaceGen @interface, ClassGen gen, string indent)
{
foreach (var m in @interface.Methods.Where (m => !m.IsInterfaceDefaultMethod && !m.IsStatic)) {
bool mapped = false;
string sig = m.GetSignature ();
if (Context.ContextGeneratedMethods.Any (_ => _.Name == m.Name && _.JniSignature == m.JniSignature))
continue;
for (var cls = gen; cls != null; cls = cls.BaseGen)
if (cls.ContainsMethod (m, false) || cls != gen && gen.ExplicitlyImplementedInterfaceMethods.Contains (sig)) {
mapped = true;
break;
}
if (mapped)
continue;
if (gen.ExplicitlyImplementedInterfaceMethods.Contains (sig))
WriteMethodExplicitInterfaceImplementation (m, indent, @interface);
else
WriteMethodAbstractDeclaration (m, indent, @interface, gen);
Context.ContextGeneratedMethods.Add (m);
}
foreach (var prop in @interface.Properties.Where (p => !p.Getter.IsInterfaceDefaultMethod && !p.Getter.IsStatic)) {
if (gen.ContainsProperty (prop.Name, false))
continue;
WritePropertyAbstractDeclaration (prop, indent, gen);
}
}
public void WriteInterfaceDeclaration (InterfaceGen @interface, string indent, GenerationInfo gen_info)
{
StringBuilder sb = new StringBuilder ();
foreach (ISymbol isym in @interface.Interfaces) {
InterfaceGen igen = (isym is GenericSymbol ? (isym as GenericSymbol).Gen : isym) as InterfaceGen;
if (igen.IsConstSugar (opt) || igen.RawVisibility != "public")
continue;
if (sb.Length > 0)
sb.Append (", ");
sb.Append (opt.GetOutputName (isym.FullName));
}
writer.WriteLine ("{0}// Metadata.xml XPath interface reference: path=\"{1}\"", indent, @interface.MetadataXPathReference);
if (@interface.IsDeprecated)
writer.WriteLine ("{0}[ObsoleteAttribute (@\"{1}\")]", indent, @interface.DeprecatedComment);
if (!@interface.IsConstSugar (opt)) {
var signature = string.IsNullOrWhiteSpace (@interface.Namespace)
? @interface.FullName.Replace ('.', '/')
: @interface.Namespace + "." + @interface.FullName.Substring (@interface.Namespace.Length + 1).Replace ('.', '/');
writer.WriteLine ("{0}[Register (\"{1}\", \"\", \"{2}\"{3})]", indent, @interface.RawJniName, signature + "Invoker", @interface.AdditionalAttributeString ());
}
if (@interface.TypeParameters != null && @interface.TypeParameters.Any ())
writer.WriteLine ("{0}{1}", indent, @interface.TypeParameters.ToGeneratedAttributeString ());
writer.WriteLine ("{0}{1} partial interface {2}{3} {{", indent, @interface.Visibility, @interface.Name,
@interface.IsConstSugar (opt) ? string.Empty : @interface.Interfaces.Count == 0 || sb.Length == 0 ? " : " + GetAllInterfaceImplements () : " : " + sb.ToString ());
if (opt.SupportDefaultInterfaceMethods && (@interface.HasDefaultMethods || @interface.HasStaticMethods))
WriteClassHandle (@interface, indent + "\t", @interface.Name);
WriteInterfaceFields (@interface, indent + "\t");
writer.WriteLine ();
WriteInterfaceProperties (@interface, indent + "\t");
WriteInterfaceMethods (@interface, indent + "\t");
// Generate nested types for supported nested types
foreach (var nest in @interface.NestedTypes.Where (t => !t.Unnest)) {
WriteType (nest, indent + "\t", gen_info);
writer.WriteLine ();
}
writer.WriteLine (indent + "}");
writer.WriteLine ();
}
public void WriteInterfaceExtensionMethods (InterfaceGen @interface, string indent)
{
foreach (Method m in @interface.Methods.Where (m => !m.IsStatic)) {
WriteMethodExtensionOverload (m, indent, @interface.FullName);
WriteMethodExtensionAsyncWrapper (m, indent, @interface.FullName);
}
}
public void WriteInterfaceEventArgs (InterfaceGen @interface, Method m, string indent)
{
string args_name = @interface.GetArgsName (m);
if (m.RetVal.IsVoid || m.IsEventHandlerWithHandledProperty) {
if (!m.IsSimpleEventHandler || m.IsEventHandlerWithHandledProperty) {
writer.WriteLine ("{0}// event args for {1}.{2}", indent, @interface.JavaName, m.JavaName);
writer.WriteLine ("{0}public partial class {1} : global::System.EventArgs {{", indent, args_name);
writer.WriteLine ();
var signature = m.Parameters.GetSignatureDropSender (opt);
writer.WriteLine ("{0}\tpublic {1} ({2}{3}{4})", indent, args_name,
m.IsEventHandlerWithHandledProperty ? "bool handled" : "",
(m.IsEventHandlerWithHandledProperty && signature.Length != 0) ? ", " : "",
signature);
writer.WriteLine ("{0}\t{{", indent);
if (m.IsEventHandlerWithHandledProperty)
writer.WriteLine ("{0}\t\tthis.handled = handled;", indent);
foreach (Parameter p in m.Parameters)
if (!p.IsSender)
writer.WriteLine ("{0}\t\tthis.{1} = {1};", indent, opt.GetSafeIdentifier (p.Name));
writer.WriteLine ("{0}\t}}", indent);
if (m.IsEventHandlerWithHandledProperty) {
writer.WriteLine ();
writer.WriteLine ("{0}\tbool handled;", indent);
writer.WriteLine ("{0}\tpublic bool Handled {{", indent);
writer.WriteLine ("{0}\t\tget {{ return handled; }}", indent);
writer.WriteLine ("{0}\t\tset {{ handled = value; }}", indent);
writer.WriteLine ("{0}\t}}", indent);
}
foreach (Parameter p in m.Parameters) {
if (p.IsSender)
continue;
writer.WriteLine ();
// Remove "params" from things like "global::Java.Lang.Object[]"
var type_reference_name = opt.GetTypeReferenceName (p);
type_reference_name = type_reference_name.StartsWith ("params ", StringComparison.Ordinal) ? type_reference_name.Substring ("params ".Length) : type_reference_name;
writer.WriteLine ("{0}\t{1} {2};", indent, type_reference_name, opt.GetSafeIdentifier (p.Name));
// AbsListView.IMultiChoiceModeListener.onItemCheckedStateChanged() hit this strict name check, at parameter "@checked".
writer.WriteLine ("{0}\tpublic {1} {2} {{", indent, type_reference_name, p.PropertyName);
writer.WriteLine ("{0}\t\tget {{ return {1}; }}", indent, opt.GetSafeIdentifier (p.Name));
writer.WriteLine ("{0}\t}}", indent);
}
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
} else {
writer.WriteLine ("{0}public delegate {1} {2} ({3});", indent, opt.GetTypeReferenceName (m.RetVal), @interface.GetEventDelegateName (m), m.GetSignature (opt));
writer.WriteLine ();
}
}
public void WriteInterfaceEventHandler (InterfaceGen @interface, string indent)
{
if (!@interface.IsListener)
return;
//Method m = Methods [0];
foreach (var method in @interface.Methods.Where (m => m.EventName != string.Empty))
WriteInterfaceEventArgs (@interface, method, indent);
WriteInterfaceEventHandlerImpl (@interface, indent);
}
public void WriteInterfaceEventHandlerImpl (InterfaceGen @interface, string indent)
{
string jniClass = "mono/" + @interface.RawJniName.Replace ('$', '_') + "Implementor";
writer.WriteLine ("{0}[global::Android.Runtime.Register (\"{1}\"{2})]", indent, jniClass, @interface.AdditionalAttributeString ());
writer.WriteLine ("{0}internal sealed partial class {1}Implementor : global::Java.Lang.Object, {1} {{", indent, @interface.Name);
bool needs_sender = @interface.NeedsSender;
if (needs_sender) {
writer.WriteLine ();
writer.WriteLine ("{0}\tobject sender;", indent);
}
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic {1}Implementor ({2})", indent, @interface.Name, needs_sender ? "object sender" : "");
writer.WriteLine ("{0}\t\t: base (", indent);
writer.WriteLine ("{0}\t\t\tglobal::Android.Runtime.JNIEnv.StartCreateInstance (\"{1}\", \"()V\"),", indent, jniClass);
writer.WriteLine ("{0}\t\t\tJniHandleOwnership.TransferLocalRef)", indent);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t\tglobal::Android.Runtime.JNIEnv.FinishCreateInstance ({1}, \"()V\");", indent, @interface.GetObjectHandleProperty ("this"));
if (needs_sender)
writer.WriteLine ("{0}\t\tthis.sender = sender;", indent);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
var handlers = new List<string> ();
foreach (var m in @interface.Methods)
WriteInterfaceEventHandlerImplContent (@interface, m, indent, needs_sender, jniClass, handlers);
writer.WriteLine ();
writer.WriteLine ("{0}\tinternal static bool __IsEmpty ({1}Implementor value)", indent, @interface.Name);
writer.WriteLine ("{0}\t{{", indent);
if (!@interface.Methods.Any (m => m.EventName != string.Empty) || handlers.Count == 0)
writer.WriteLine ("{0}\t\treturn true;", indent);
else
writer.WriteLine ("{0}\t\treturn {1};", indent,
string.Join (" && ", handlers.Select (e => string.Format ("value.{0}Handler == null", e))));
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
public void WriteInterfaceEventHandlerImplContent (InterfaceGen @interface, Method m, string indent, bool needs_sender, string jniClass, List<string> handlers)
{
string methodSpec = @interface.Methods.Count > 1 ? m.AdjustedName : String.Empty;
handlers.Add (methodSpec);
string args_name = @interface.GetArgsName (m);
if (m.EventName != string.Empty) {
writer.WriteLine ("#pragma warning disable 0649");
writer.WriteLine ("{0}\tpublic {1}{3} {2}Handler;", indent, @interface.GetEventDelegateName (m), methodSpec, opt.NullableOperator);
writer.WriteLine ("#pragma warning restore 0649");
}
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic {1} {2} ({3})", indent, opt.GetTypeReferenceName (m.RetVal), m.Name, m.GetSignature (opt));
writer.WriteLine ("{0}\t{{", indent);
if (m.EventName == string.Empty) {
// generate nothing
} else if (m.IsVoid) {
writer.WriteLine ("{0}\t\tvar __h = {1}Handler;", indent, methodSpec);
writer.WriteLine ("{0}\t\tif (__h != null)", indent);
writer.WriteLine ("{0}\t\t\t__h ({1}, new {2} ({3}));", indent, needs_sender ? "sender" : m.Parameters.SenderName, args_name, m.Parameters.CallDropSender);
} else if (m.IsEventHandlerWithHandledProperty) {
writer.WriteLine ("{0}\t\tvar __h = {1}Handler;", indent, methodSpec);
writer.WriteLine ("{0}\t\tif (__h == null)", indent);
writer.WriteLine ("{0}\t\t\treturn {1};", indent, m.RetVal.DefaultValue);
var call = m.Parameters.CallDropSender;
writer.WriteLine ("{0}\t\tvar __e = new {1} (true{2}{3});", indent, args_name,
call.Length != 0 ? ", " : "",
call);
writer.WriteLine ("{0}\t\t__h ({1}, __e);", indent, needs_sender ? "sender" : m.Parameters.SenderName);
writer.WriteLine ("{0}\t\treturn __e.Handled;", indent);
} else {
writer.WriteLine ("{0}\t\tvar __h = {1}Handler;", indent, methodSpec);
writer.WriteLine ("{0}\t\treturn __h != null ? __h ({1}) : default ({2});", indent, m.Parameters.GetCall (opt), opt.GetTypeReferenceName (m.RetVal));
}
writer.WriteLine ("{0}\t}}", indent);
}
public void WriteInterfaceExtensionsDeclaration (InterfaceGen @interface, string indent, string declaringTypeName)
{
if (!@interface.Methods.Any (m => m.CanHaveStringOverload) && !@interface.Methods.Any (m => m.Asyncify))
return;
writer.WriteLine ("{0}public static partial class {1}{2}Extensions {{", indent, declaringTypeName, @interface.Name);
WriteInterfaceExtensionMethods (@interface, indent + "\t");
writer.WriteLine (indent + "}");
writer.WriteLine ();
}
public void WriteInterfaceFields (InterfaceGen iface, string indent)
{
// Interface fields are only supported with DIM
if (!opt.SupportInterfaceConstants)
return;
var seen = new HashSet<string> ();
var fields = iface.GetGeneratableFields (opt).ToList ();
WriteFields (fields, indent, iface, seen);
}
public void WriteInterfaceImplementedMembersAlternative (InterfaceGen @interface, string indent)
{
// Historically .NET has not allowed interface implemented fields or constants, so we
// initially worked around that by moving them to an abstract class, generally
// IMyInterface -> MyInterfaceConsts
// This was later expanded to accomodate static interface methods, creating a more appropriately named class
// IMyInterface -> MyInterface
// In this case the XXXConsts class is [Obsolete]'d and simply inherits from the newer class
// in order to maintain backward compatibility.
// If we're creating a binding that supports DIM, we remove the XXXConsts class as they've been
// [Obsolete:iserror] for a long time, and we add [Obsolete] to the interface "class".
// Bail if requested we not produce alternative classes for this interface
if (@interface.NoAlternatives)
return;
var staticMethods = @interface.Methods.Where (m => m.IsStatic);
var should_obsolete = opt.SupportInterfaceConstants && opt.SupportDefaultInterfaceMethods;
if (@interface.Fields.Any () || staticMethods.Any ()) {
string name = @interface.HasManagedName
? @interface.Name.Substring (1) + "Consts"
: @interface.Name.Substring (1);
writer.WriteLine ("{0}[Register (\"{1}\"{2}, DoNotGenerateAcw=true)]", indent, @interface.RawJniName, @interface.AdditionalAttributeString ());
if (should_obsolete)
writer.WriteLine ("{0}[global::System.Obsolete (\"Use the '{1}' type. This class will be removed in a future release.\")]", indent, @interface.FullName);
writer.WriteLine ("{0}public abstract class {1} : Java.Lang.Object {{", indent, name);
writer.WriteLine ();
writer.WriteLine ("{0}\tinternal {1} ()", indent, name);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t}}", indent);
var seen = new HashSet<string> ();
var original_fields = DeprecateFields (@interface, should_obsolete);
bool needsClassRef = WriteFields (@interface.Fields, indent + "\t", @interface, seen) || staticMethods.Any ();
RestoreDeprecatedFields (original_fields);
foreach (var iface in @interface.GetAllImplementedInterfaces ().OfType<InterfaceGen> ()) {
writer.WriteLine ();
writer.WriteLine ("{0}\t// The following are fields from: {1}", indent, iface.JavaName);
original_fields = DeprecateFields (iface, should_obsolete);
bool v = WriteFields (iface.Fields, indent + "\t", iface, seen);
RestoreDeprecatedFields (original_fields);
needsClassRef = needsClassRef || v;
}
foreach (var m in @interface.Methods.Where (m => m.IsStatic)) {
var original = m.Deprecated;
if (should_obsolete && string.IsNullOrWhiteSpace (m.Deprecated))
m.Deprecated = $"Use '{@interface.FullName}.{m.AdjustedName}'. This class will be removed in a future release.";
WriteMethod (m, indent + "\t", @interface, true);
m.Deprecated = original;
}
if (needsClassRef) {
writer.WriteLine ();
WriteClassHandle (@interface, indent + "\t", name);
}
writer.WriteLine ("{0}}}", indent, @interface.Name);
writer.WriteLine ();
if (!@interface.HasManagedName && !opt.SupportInterfaceConstants) {
writer.WriteLine ("{0}[Register (\"{1}\"{2}, DoNotGenerateAcw=true)]", indent, @interface.RawJniName, @interface.AdditionalAttributeString ());
writer.WriteLine ("{0}[global::System.Obsolete (\"Use the '{1}' type. This type will be removed in a future release.\", error: true)]", indent, name);
writer.WriteLine ("{0}public abstract class {1}Consts : {1} {{", indent, name);
writer.WriteLine ();
writer.WriteLine ("{0}\tprivate {1}Consts ()", indent, name);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
}
}
List<(Field field, bool deprecated, string comment)> DeprecateFields (InterfaceGen iface, bool shouldObsolete)
{
var original_fields = iface.Fields.Select (f => (f, f.IsDeprecated, f.DeprecatedComment)).ToList ();
if (!shouldObsolete)
return original_fields;
foreach (var f in iface.Fields) {
// Only use this derprecation if it's not already deprecated for another reason
if (!f.IsDeprecated) {
f.IsDeprecated = true;
f.DeprecatedComment = $"Use '{iface.FullName}.{f.Name}'. This class will be removed in a future release."; ;
}
}
return original_fields;
}
void RestoreDeprecatedFields (List<(Field field, bool deprecated, string comment)> fields)
{
foreach (var tuple in fields) {
tuple.field.IsDeprecated = tuple.deprecated;
tuple.field.DeprecatedComment = tuple.comment;
}
}
public void WriteInterfaceInvoker (InterfaceGen @interface, string indent)
{
writer.WriteLine ("{0}[global::Android.Runtime.Register (\"{1}\", DoNotGenerateAcw=true{2})]", indent, @interface.RawJniName, @interface.AdditionalAttributeString ());
writer.WriteLine ("{0}internal partial class {1}Invoker : global::Java.Lang.Object, {1} {{", indent, @interface.Name);
writer.WriteLine ();
WriteInterfaceInvokerHandle (@interface, indent + "\t", @interface.Name + "Invoker");
writer.WriteLine ("{0}\t{1}IntPtr class_ref;", indent, opt.BuildingCoreAssembly ? "new " : "");
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic static {1}{2} GetObject (IntPtr handle, JniHandleOwnership transfer)", indent, @interface.Name, opt.NullableOperator);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t\treturn global::Java.Lang.Object.GetObject<{1}> (handle, transfer);", indent, @interface.Name);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
writer.WriteLine ("{0}\tstatic IntPtr Validate (IntPtr handle)", indent);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t\tif (!JNIEnv.IsInstanceOf (handle, java_class_ref))", indent);
writer.WriteLine ("{0}\t\t\tthrow new InvalidCastException (string.Format (\"Unable to convert instance of type '{{0}}' to type '{{1}}'.\",", indent);
writer.WriteLine ("{0}\t\t\t\t\t\tJNIEnv.GetClassNameFromInstance (handle), \"{1}\"));", indent, @interface.JavaName);
writer.WriteLine ("{0}\t\treturn handle;", indent);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
writer.WriteLine ("{0}\tprotected override void Dispose (bool disposing)", indent);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t\tif (this.class_ref != IntPtr.Zero)", indent);
writer.WriteLine ("{0}\t\t\tJNIEnv.DeleteGlobalRef (this.class_ref);", indent);
writer.WriteLine ("{0}\t\tthis.class_ref = IntPtr.Zero;", indent);
writer.WriteLine ("{0}\t\tbase.Dispose (disposing);", indent);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
writer.WriteLine ("{0}\tpublic {1}Invoker (IntPtr handle, JniHandleOwnership transfer) : base (Validate (handle), transfer)", indent, @interface.Name);
writer.WriteLine ("{0}\t{{", indent);
writer.WriteLine ("{0}\t\tIntPtr local_ref = JNIEnv.GetObjectClass ({1});", indent, Context.ContextType.GetObjectHandleProperty ("this"));
writer.WriteLine ("{0}\t\tthis.class_ref = JNIEnv.NewGlobalRef (local_ref);", indent);
writer.WriteLine ("{0}\t\tJNIEnv.DeleteLocalRef (local_ref);", indent);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ();
HashSet<string> members = new HashSet<string> ();
WriteInterfacePropertyInvokers (@interface, @interface.Properties.Where (p => !p.Getter.IsStatic && !p.Getter.IsInterfaceDefaultMethod), indent + "\t", members);
WriteInterfaceMethodInvokers (@interface, @interface.Methods.Where (m => !m.IsStatic && !m.IsInterfaceDefaultMethod), indent + "\t", members);
if (@interface.FullName == "Java.Lang.ICharSequence")
WriteCharSequenceEnumerator (indent + "\t");
foreach (InterfaceGen iface in @interface.GetAllDerivedInterfaces ()) {
WriteInterfacePropertyInvokers (@interface, iface.Properties.Where (p => !p.Getter.IsStatic && !p.Getter.IsInterfaceDefaultMethod), indent + "\t", members);
WriteInterfaceMethodInvokers (@interface, iface.Methods.Where (m => !m.IsStatic && !m.IsInterfaceDefaultMethod && !@interface.IsCovariantMethod (m) && !(iface.FullName.StartsWith ("Java.Lang.ICharSequence", StringComparison.Ordinal) && m.Name.EndsWith ("Formatted", StringComparison.Ordinal))), indent + "\t", members);
if (iface.FullName == "Java.Lang.ICharSequence")
WriteCharSequenceEnumerator (indent + "\t");
}
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
public void WriteInterfaceListenerEvent (InterfaceGen @interface, string indent, string name, string nameSpec, string methodName, string full_delegate_name, bool needs_sender, string wrefSuffix, string add, string remove, bool hasHandlerArgument = false)
{
writer.WriteLine ("{0}public event {1} {2} {{", indent, opt.GetOutputName (full_delegate_name), name);
writer.WriteLine ("{0}\tadd {{", indent);
writer.WriteLine ("{0}\t\tglobal::Java.Interop.EventHelper.AddEventHandler<{1}, {1}Implementor>(",
indent, opt.GetOutputName (@interface.FullName));
writer.WriteLine ("{0}\t\t\t\tref weak_implementor_{1},", indent, wrefSuffix);
writer.WriteLine ("{0}\t\t\t\t__Create{1}Implementor,", indent, @interface.Name);
writer.WriteLine ("{0}\t\t\t\t{1},", indent, add + (hasHandlerArgument ? "_Event_With_Handler_Helper" : null));
writer.WriteLine ("{0}\t\t\t\t__h => __h.{1}Handler += value);", indent, nameSpec);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ("{0}\tremove {{", indent);
writer.WriteLine ("{0}\t\tglobal::Java.Interop.EventHelper.RemoveEventHandler<{1}, {1}Implementor>(",
indent, opt.GetOutputName (@interface.FullName));
writer.WriteLine ("{0}\t\t\t\tref weak_implementor_{1},", indent, wrefSuffix);
writer.WriteLine ("{0}\t\t\t\t{1}Implementor.__IsEmpty,", indent, opt.GetOutputName (@interface.FullName));
writer.WriteLine ("{0}\t\t\t\t{1},", indent, remove);
writer.WriteLine ("{0}\t\t\t\t__h => __h.{1}Handler -= value);", indent, nameSpec);
writer.WriteLine ("{0}\t}}", indent);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
if (hasHandlerArgument) {
writer.WriteLine ("{0}void {1} ({2} value)", indent, add + "_Event_With_Handler_Helper", opt.GetOutputName (@interface.FullName));
writer.WriteLine ("{0}{{", indent);
writer.WriteLine ("{0}\t{1} (value, null);", indent, add);
writer.WriteLine ("{0}}}", indent);
writer.WriteLine ();
}
}
public void WriteInterfaceListenerEventsAndProperties (InterfaceGen @interface, string indent, ClassGen target, string name, string connector_fmt, string add, string remove)
{
if (!@interface.IsValid)
return;
foreach (var m in @interface.Methods) {
string nameSpec = @interface.Methods.Count > 1 ? m.EventName ?? m.AdjustedName : String.Empty;
string nameUnique = String.IsNullOrEmpty (nameSpec) ? name : nameSpec;
if (nameUnique.StartsWith ("On", StringComparison.Ordinal))
nameUnique = nameUnique.Substring (2);
if (target.ContainsName (nameUnique))
nameUnique += "Event";
WriteInterfaceListenerEventOrProperty (@interface, m, indent, target, nameUnique, connector_fmt, add, remove);
}
}
public void WriteInterfaceListenerEventsAndProperties (InterfaceGen @interface, string indent, ClassGen target)
{
var methods = target.Methods.Concat (target.Properties.Where (p => p.Setter != null).Select (p => p.Setter));
var props = new HashSet<string> ();
var refs = new HashSet<string> ();
var eventMethods = methods.Where (m => m.IsListenerConnector && m.EventName != String.Empty && m.ListenerType == @interface).OrderBy (m => m.Parameters.Count).GroupBy (m => m.Name).Select (g => g.First ()).Distinct ();
foreach (var method in eventMethods) {
string name = method.CalculateEventName (target.ContainsName);
if (String.IsNullOrEmpty (name)) {
Report.LogCodedWarning (0, Report.WarningEmptyEventName, method, @interface.FullName, method.Name);
continue;
}
if (opt.GetSafeIdentifier (name) != name) {
Report.LogCodedWarning (0, Report.WarningInvalidEventName, method, @interface.FullName, method.Name);
continue;
}
var prop = target.Properties.FirstOrDefault (p => p.Setter == method);
if (prop != null) {
string setter = "__Set" + prop.Name;
props.Add (prop.Name);
refs.Add (setter);
WriteInterfaceListenerEventsAndProperties (@interface, indent, target, name, setter,
string.Format ("__v => {0} = __v", prop.Name),
string.Format ("__v => {0} = null", prop.Name));
} else {
refs.Add (method.Name);
string rm = null;
string remove;
if (method.Name.StartsWith ("Set", StringComparison.Ordinal))
remove = string.Format ("__v => {0} (null)", method.Name);
else if (method.Name.StartsWith ("Add", StringComparison.Ordinal) &&
(rm = "Remove" + method.Name.Substring ("Add".Length)) != null &&
methods.Where (m => m.Name == rm).Any ())
remove = string.Format ("__v => {0} (__v)", rm);
else
remove = string.Format ("__v => {{throw new NotSupportedException (\"Cannot unregister from {0}.{1}\");}}",
@interface.FullName, method.Name);
WriteInterfaceListenerEventsAndProperties (@interface, indent, target, name, method.Name,
method.Name,
remove);
}
}
foreach (var r in refs) {
writer.WriteLine ("{0}WeakReference{2} weak_implementor_{1};", indent, r, opt.NullableOperator);
}
writer.WriteLine ();
writer.WriteLine ("{0}{1}Implementor __Create{2}Implementor ()", indent, opt.GetOutputName (@interface.FullName), @interface.Name);
writer.WriteLine ("{0}{{", indent);
writer.WriteLine ("{0}\treturn new {1}Implementor ({2});", indent, opt.GetOutputName (@interface.FullName),
@interface.NeedsSender ? "this" : "");
writer.WriteLine ("{0}}}", indent);
}
public void WriteInterfaceListenerEventOrProperty (InterfaceGen @interface, Method m, string indent, ClassGen target, string name, string connector_fmt, string add, string remove)
{
if (m.EventName == string.Empty)
return;
string nameSpec = @interface.Methods.Count > 1 ? m.AdjustedName : String.Empty;
int idx = @interface.FullName.LastIndexOf ('.');
int start = @interface.Name.StartsWith ("IOn", StringComparison.Ordinal) ? 3 : 1;
string full_delegate_name = @interface.FullName.Substring (0, idx + 1) + @interface.Name.Substring (start, @interface.Name.Length - start - 8) + nameSpec;
if (m.IsSimpleEventHandler)
full_delegate_name = "EventHandler";
else if (m.RetVal.IsVoid || m.IsEventHandlerWithHandledProperty)
full_delegate_name = "EventHandler<" + @interface.FullName.Substring (0, idx + 1) + @interface.GetArgsName (m) + ">";
else