mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-09-07 07:23:18 +02:00
generator: added conversion for byref structs
The pointer from native is stored inside of a class which wraps the structure. Fields can be accessed by marshalling from and to the pointer. glib: Value.Update does now invoke a private Update() method which is needed to update the new structures.
This commit is contained in:
parent
d01be26f0c
commit
29a900e51e
@ -40,7 +40,7 @@ namespace GtkSharp.Generation {
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return true;
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}
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protected virtual bool Readable {
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internal virtual bool Readable {
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get {
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if (Parser.GetVersion (elem.OwnerDocument.DocumentElement) <= 2)
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return elem.GetAttribute ("readable") != "false";
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@ -48,7 +48,7 @@ namespace GtkSharp.Generation {
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}
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}
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protected virtual bool Writable {
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internal virtual bool Writable {
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get {
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if (Parser.GetVersion (elem.OwnerDocument.DocumentElement) <= 2)
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return elem.GetAttribute ("writeable") != "false";
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@ -58,7 +58,7 @@ namespace GtkSharp.Generation {
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protected abstract string DefaultAccess { get; }
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protected string Access {
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internal string Access {
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get {
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return elem.HasAttribute ("access") ? elem.GetAttribute ("access") : DefaultAccess;
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}
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@ -43,6 +43,7 @@ sources = \
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MethodBase.cs \
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MethodBody.cs \
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Method.cs \
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NativeStructGen.cs \
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ObjectField.cs \
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ObjectBase.cs \
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ObjectGen.cs \
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232
generator/NativeStructGen.cs
Normal file
232
generator/NativeStructGen.cs
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@ -0,0 +1,232 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Xml;
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namespace GtkSharp.Generation
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{
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public class NativeStructGen : HandleBase
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{
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IList<StructField> fields = new List<StructField> ();
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bool need_read_native = false;
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string native_struct_name;
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public NativeStructGen (XmlElement ns, XmlElement elem) : base (ns, elem)
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{
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native_struct_name = Name + "Impl";
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foreach (XmlNode node in elem.ChildNodes) {
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if (!(node is XmlElement)) continue;
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XmlElement member = (XmlElement) node;
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switch (node.Name) {
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case "field":
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fields.Add (new StructField (member, this));
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break;
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default:
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if (!IsNodeNameHandled (node.Name))
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Console.WriteLine ("Unexpected node " + node.Name + " in " + CName);
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break;
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}
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}
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}
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public override string MarshalType {
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get {
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return "IntPtr";
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}
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}
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public override string AssignToName {
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get { return "Handle"; }
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}
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public override string CallByName ()
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{
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return "Handle";
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}
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public override string CallByName (string var)
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{
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return String.Format ("{0} == null ? IntPtr.Zero : {0}.{1}", var, "Handle");
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}
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public override string FromNative (string var, bool owned)
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{
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return "new " + QualifiedName + "( " + var + " )";
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}
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public override void Generate (GenerationInfo gen_info)
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{
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bool need_close = false;
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if (gen_info.Writer == null) {
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gen_info.Writer = gen_info.OpenStream (Name);
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need_close = true;
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}
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ("namespace " + NS + " {");
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ("\tusing System.Collections;");
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sw.WriteLine ("\tusing System.Collections.Generic;");
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sw.WriteLine ("\tusing System.Runtime.InteropServices;");
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sw.WriteLine ();
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sw.WriteLine ("#region Autogenerated code");
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if (IsDeprecated)
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sw.WriteLine ("\t[Obsolete]");
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string access = IsInternal ? "internal" : "public";
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sw.WriteLine ("\t" + access + " partial class {0} : IEquatable<{0}> {{", Name);
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sw.WriteLine ();
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need_read_native = false;
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GenNativeStruct (gen_info);
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GenUpdate (gen_info);
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GenFields (gen_info);
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sw.WriteLine ();
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GenCtors (gen_info);
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GenMethods (gen_info, null, this);
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if (need_read_native)
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GenUpdate (gen_info);
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GenEqualsAndHash (sw);
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if (!need_close)
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return;
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sw.WriteLine ("#endregion");
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sw.WriteLine ("\t}");
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sw.WriteLine ("}");
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sw.Close ();
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gen_info.Writer = null;
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}
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private void GenNativeStruct (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ("\t\t[StructLayout(LayoutKind.Sequential)]");
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sw.WriteLine ("\t\tprivate struct {0} {{", native_struct_name);
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foreach (StructField field in fields) {
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field.Generate (gen_info, "\t\t\t");
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}
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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private void GenUpdate (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ("\t\tprivate void Update ()", QualifiedName);
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tthis.managed_struct = ({0})Marshal.PtrToStructure (this.Handle, typeof({0}));", native_struct_name);
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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protected override void GenCtors (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ("\t\tpublic {0} (IntPtr raw)", Name);
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tthis.Handle = raw;");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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base.GenCtors (gen_info);
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}
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protected new void GenFields (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ("\t\tprivate IntPtr Raw;");
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sw.WriteLine ("\t\tpublic IntPtr Handle {");
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sw.WriteLine ("\t\t\tget { return Raw; }");
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sw.WriteLine ("\t\t\tset { Raw = value; Update ();}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ("\t\tprivate {0} managed_struct;", native_struct_name);
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sw.WriteLine ();
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foreach (StructField field in fields) {
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if (!field.Visible)
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continue;
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sw.WriteLine ("\t\tpublic {0} {1} {{", SymbolTable.Table.GetCSType (field.CType), field.StudlyName);
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sw.WriteLine ("\t\t\tget {{ Update(); return {0}.{1}; }}", "managed_struct", field.StudlyName);
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if (!(SymbolTable.Table [field.CType] is CallbackGen))
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sw.WriteLine ("\t\t\tset {{ Update(); {0}.{1} = value; Marshal.StructureToPtr({0}, this.Handle, false); }}" , "managed_struct", field.StudlyName);
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sw.WriteLine ("\t\t}");
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}
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}
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protected void GenEqualsAndHash (StreamWriter sw)
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{
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int bitfields = 0;
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bool need_field = true;
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StringBuilder hashcode = new StringBuilder ();
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StringBuilder equals = new StringBuilder ();
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sw.WriteLine ("\t\tpublic bool Equals ({0} other)", Name);
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sw.WriteLine ("\t\t{");
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hashcode.Append ("this.GetType().FullName.GetHashCode()");
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equals.Append ("true");
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foreach (StructField field in fields) {
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if (field.IsPadding || !field.Visible)
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continue;
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if (field.IsBitfield) {
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if (need_field) {
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equals.Append (" && _bitfield");
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equals.Append (bitfields);
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equals.Append (".Equals (other._bitfield");
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equals.Append (bitfields);
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equals.Append (")");
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hashcode.Append (" ^ ");
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hashcode.Append ("_bitfield");
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hashcode.Append (bitfields++);
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hashcode.Append (".GetHashCode ()");
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need_field = false;
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}
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} else {
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need_field = true;
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equals.Append (" && ");
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equals.Append (field.EqualityName);
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equals.Append (".Equals (other.");
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equals.Append (field.EqualityName);
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equals.Append (")");
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hashcode.Append (" ^ ");
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hashcode.Append (field.EqualityName);
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hashcode.Append (".GetHashCode ()");
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}
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}
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sw.WriteLine ("\t\t\treturn {0};", equals.ToString ());
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic override bool Equals (object other)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\treturn other is {0} && Equals (({0}) other);", Name);
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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if (Elem.GetAttribute ("nohash") == "true")
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return;
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sw.WriteLine ("\t\tpublic override int GetHashCode ()");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\treturn {0};", hashcode.ToString ());
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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public override void Prepare (StreamWriter sw, string indent)
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{
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sw.WriteLine (indent + "Update ();");
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}
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}
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}
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@ -32,7 +32,7 @@ namespace GtkSharp.Generation {
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ctype = "const-" + CType;
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}
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protected override bool Writable {
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internal override bool Writable {
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get {
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return elem.GetAttributeAsBoolean ("writeable");
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}
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@ -140,6 +140,7 @@ namespace GtkSharp.Generation {
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continue;
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bool is_opaque = elem.GetAttributeAsBoolean ("opaque");
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bool is_native_struct = elem.GetAttributeAsBoolean ("native");
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switch (def.Name) {
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case "alias":
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@ -177,6 +178,8 @@ namespace GtkSharp.Generation {
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case "struct":
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if (is_opaque) {
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result.Add (new OpaqueGen (ns, elem));
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} else if (is_native_struct) {
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result.Add (new NativeStructGen (ns, elem));
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} else {
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result.Add (new StructGen (ns, elem));
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}
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@ -70,6 +70,13 @@ namespace GtkSharp.Generation {
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}
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}
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bool visible = false;
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internal bool Visible {
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get {
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return visible;
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}
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}
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public string EqualityName {
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get {
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SymbolTable table = SymbolTable.Table;
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@ -127,6 +134,8 @@ namespace GtkSharp.Generation {
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if (Hidden)
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return;
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visible = Access != "private";
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StreamWriter sw = gen_info.Writer;
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SymbolTable table = SymbolTable.Table;
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@ -158,6 +167,7 @@ namespace GtkSharp.Generation {
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}
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} else if (IsPointer && CSType != "string") {
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// FIXME: probably some fields here which should be visible.
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visible = false;
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sw.WriteLine (indent + "private {0} {1};", CSType, Name);
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} else {
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sw.WriteLine (indent + "{0} {1} {2};", Access, CSType, Access == "public" ? StudlyName : Name);
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@ -93,6 +93,7 @@
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<Compile Include="Options.cs" />
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<Compile Include="Constant.cs" />
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<Compile Include="UnionGen.cs" />
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<Compile Include="NativeStructGen.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="DESIGN" />
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@ -102,4 +103,4 @@
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<Reference Include="System" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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</Project>
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</Project>
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@ -421,10 +421,14 @@ namespace GLib {
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return (GLib.Opaque) this;
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MethodInfo mi = t.GetMethod ("New", BindingFlags.Static | BindingFlags.Public | BindingFlags.FlattenHierarchy);
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if (mi == null)
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return Marshal.PtrToStructure (boxed_ptr, t);
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else
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if (mi != null)
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return mi.Invoke (null, new object[] {boxed_ptr});
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ConstructorInfo ci = t.GetConstructor (new Type[] { typeof(IntPtr) });
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if (ci != null)
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return ci.Invoke (new object[] { boxed_ptr });
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return Marshal.PtrToStructure (boxed_ptr, t);
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}
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public object Val
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@ -548,8 +552,15 @@ namespace GLib {
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internal void Update (object val)
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{
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if (GType.Is (type, GType.Boxed) && !(val is IWrapper))
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Marshal.StructureToPtr (val, g_value_get_boxed (ref this), false);
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Type t = GType.LookupType (type);
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if (GType.Is (type, GType.Boxed) && !(val is IWrapper)) {
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MethodInfo mi = val.GetType ().GetMethod ("Update", BindingFlags.NonPublic | BindingFlags.Instance);
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IntPtr boxed_ptr = g_value_get_boxed (ref this);
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if (mi == null)
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Marshal.StructureToPtr (val, boxed_ptr, false);
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else
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mi.Invoke (val, null);
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}
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}
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bool HoldsFlags {
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