mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 08:17:01 +00:00
737 lines
17 KiB
C#
737 lines
17 KiB
C#
// GtkSharp.Generation.Parameters.cs - The Parameters Generation Class.
|
|
//
|
|
// Author: Mike Kestner <mkestner@speakeasy.net>
|
|
//
|
|
// Copyright (c) 2001-2003 Mike Kestner
|
|
// Copyright (c) 2004 Novell, Inc.
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of version 2 of the GNU General Public
|
|
// License as published by the Free Software Foundation.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public
|
|
// License along with this program; if not, write to the
|
|
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
// Boston, MA 02111-1307, USA.
|
|
|
|
|
|
namespace GtkSharp.Generation {
|
|
|
|
using System;
|
|
using System.Collections;
|
|
using System.IO;
|
|
using System.Xml;
|
|
|
|
public class Parameter {
|
|
|
|
private XmlElement elem;
|
|
|
|
public Parameter (XmlElement e)
|
|
{
|
|
elem = e;
|
|
}
|
|
|
|
string call_name;
|
|
public string CallName {
|
|
get {
|
|
if (call_name == null)
|
|
return Name;
|
|
else
|
|
return call_name;
|
|
}
|
|
set {
|
|
call_name = value;
|
|
}
|
|
}
|
|
|
|
public string CType {
|
|
get {
|
|
string type = elem.GetAttribute("type");
|
|
if (type == "void*")
|
|
type = "gpointer";
|
|
return type;
|
|
}
|
|
}
|
|
|
|
public string CSType {
|
|
get {
|
|
string cstype = SymbolTable.Table.GetCSType( elem.GetAttribute("type"));
|
|
if (cstype == "void")
|
|
cstype = "System.IntPtr";
|
|
if (IsArray) {
|
|
if (IsParams)
|
|
cstype = "params " + cstype;
|
|
cstype += "[]";
|
|
cstype = cstype.Replace ("ref ", "");
|
|
}
|
|
return cstype;
|
|
}
|
|
}
|
|
|
|
public IGeneratable Generatable {
|
|
get {
|
|
return SymbolTable.Table[CType];
|
|
}
|
|
}
|
|
|
|
public bool IsArray {
|
|
get {
|
|
return elem.HasAttribute("array") || elem.HasAttribute("null_term_array");
|
|
}
|
|
}
|
|
|
|
public bool IsEllipsis {
|
|
get {
|
|
return elem.HasAttribute("ellipsis");
|
|
}
|
|
}
|
|
|
|
public bool IsCount {
|
|
get {
|
|
|
|
if (Name.StartsWith("n_"))
|
|
switch (CSType) {
|
|
case "int":
|
|
case "uint":
|
|
case "long":
|
|
case "ulong":
|
|
case "short":
|
|
case "ushort":
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public bool IsDestroyNotify {
|
|
get {
|
|
return CType == "GDestroyNotify";
|
|
}
|
|
}
|
|
|
|
public bool IsLength {
|
|
get {
|
|
|
|
if (Name.EndsWith("len") || Name.EndsWith("length"))
|
|
switch (CSType) {
|
|
case "int":
|
|
case "uint":
|
|
case "long":
|
|
case "ulong":
|
|
case "short":
|
|
case "ushort":
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public bool IsParams {
|
|
get {
|
|
return elem.HasAttribute("params");
|
|
}
|
|
}
|
|
|
|
public bool IsString {
|
|
get {
|
|
return (CSType == "string");
|
|
}
|
|
}
|
|
|
|
public bool IsUserData {
|
|
get {
|
|
return CSType == "IntPtr" && (Name.EndsWith ("data") || Name.EndsWith ("data_or_owner"));
|
|
}
|
|
}
|
|
|
|
public virtual string MarshalType {
|
|
get {
|
|
string type = SymbolTable.Table.GetMarshalType( elem.GetAttribute("type"));
|
|
if (type == "void" || Generatable is IManualMarshaler)
|
|
type = "IntPtr";
|
|
if (IsArray) {
|
|
type += "[]";
|
|
type = type.Replace ("ref ", "");
|
|
}
|
|
return type;
|
|
}
|
|
}
|
|
|
|
public string Name {
|
|
get {
|
|
return SymbolTable.Table.MangleName (elem.GetAttribute("name"));
|
|
}
|
|
}
|
|
|
|
public bool Owned {
|
|
get {
|
|
return elem.GetAttribute ("owned") == "true";
|
|
}
|
|
}
|
|
|
|
public virtual string NativeSignature {
|
|
get {
|
|
string sig = MarshalType + " " + Name;
|
|
if (PassAs != String.Empty)
|
|
sig = PassAs + " " + sig;
|
|
return sig;
|
|
}
|
|
}
|
|
|
|
public string PropertyName {
|
|
get {
|
|
return elem.GetAttribute("property_name");
|
|
}
|
|
}
|
|
|
|
string pass_as;
|
|
|
|
public string PassAs {
|
|
get {
|
|
if (pass_as != null)
|
|
return pass_as;
|
|
|
|
if (elem.HasAttribute ("pass_as"))
|
|
return elem.GetAttribute ("pass_as");
|
|
|
|
if (IsArray || CSType.EndsWith ("IntPtr"))
|
|
return "";
|
|
|
|
if (CType.EndsWith ("*") && (Generatable is SimpleGen || Generatable is EnumGen))
|
|
return "out";
|
|
|
|
return "";
|
|
}
|
|
set {
|
|
pass_as = value;
|
|
}
|
|
}
|
|
|
|
string scope;
|
|
public string Scope {
|
|
get {
|
|
if (scope == null)
|
|
scope = elem.GetAttribute ("scope");
|
|
return scope;
|
|
}
|
|
set {
|
|
scope = value;
|
|
}
|
|
}
|
|
|
|
public virtual string[] Prepare {
|
|
get {
|
|
IGeneratable gen = Generatable;
|
|
if (gen is IManualMarshaler) {
|
|
string result = "IntPtr native_" + CallName;
|
|
if (PassAs != "out")
|
|
result += " = " + (gen as IManualMarshaler).AllocNative (CallName);
|
|
return new string [] { result + ";" };
|
|
} else if (PassAs == "out" && CSType != MarshalType) {
|
|
return new string [] { gen.MarshalType + " native_" + CallName + ";" };
|
|
} else if (PassAs == "ref" && CSType != MarshalType) {
|
|
return new string [] { gen.MarshalType + " native_" + CallName + " = (" + gen.MarshalType + ") " + CallName + ";" };
|
|
}
|
|
|
|
return new string [0];
|
|
}
|
|
}
|
|
|
|
public virtual string CallString {
|
|
get {
|
|
string call_parm;
|
|
|
|
IGeneratable gen = Generatable;
|
|
if (gen is CallbackGen)
|
|
return SymbolTable.Table.CallByName (CType, CallName + "_wrapper");
|
|
else if (PassAs != String.Empty) {
|
|
call_parm = PassAs + " ";
|
|
if (CSType != MarshalType)
|
|
call_parm += "native_";
|
|
call_parm += CallName;
|
|
} else if (gen is IManualMarshaler)
|
|
call_parm = "native_" + CallName;
|
|
else
|
|
call_parm = SymbolTable.Table.CallByName(CType, CallName);
|
|
|
|
return call_parm;
|
|
}
|
|
}
|
|
|
|
public virtual string[] Finish {
|
|
get {
|
|
IGeneratable gen = Generatable;
|
|
if (gen is IManualMarshaler) {
|
|
string[] result = new string [PassAs == "ref" ? 2 : 1];
|
|
int i = 0;
|
|
if (PassAs != String.Empty)
|
|
result [i++] = CallName + " = " + Generatable.FromNative ("native_" + CallName) + ";";
|
|
if (PassAs != "out")
|
|
result [i] = (gen as IManualMarshaler).ReleaseNative ("native_" + CallName) + ";";
|
|
return result;
|
|
} else if (PassAs != String.Empty && MarshalType != CSType)
|
|
return new string [] { CallName + " = " + gen.FromNative ("native_" + CallName) + ";" };
|
|
return new string [0];
|
|
}
|
|
}
|
|
|
|
public string FromNative (string var)
|
|
{
|
|
if (Generatable == null)
|
|
return String.Empty;
|
|
else if (Generatable is HandleBase)
|
|
return ((HandleBase)Generatable).FromNative (var, Owned);
|
|
else
|
|
return Generatable.FromNative (var);
|
|
}
|
|
|
|
public string StudlyName {
|
|
get {
|
|
string name = elem.GetAttribute("name");
|
|
string[] segs = name.Split('_');
|
|
string studly = "";
|
|
foreach (string s in segs) {
|
|
if (s.Trim () == "")
|
|
continue;
|
|
studly += (s.Substring(0,1).ToUpper() + s.Substring(1));
|
|
}
|
|
return studly;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
public class ArrayParameter : Parameter {
|
|
|
|
bool null_terminated;
|
|
|
|
public ArrayParameter (XmlElement elem) : base (elem)
|
|
{
|
|
null_terminated = elem.HasAttribute ("null_term_array");
|
|
}
|
|
|
|
public override string MarshalType {
|
|
get {
|
|
if (Generatable is StructBase)
|
|
return CSType;
|
|
else
|
|
return base.MarshalType;
|
|
}
|
|
}
|
|
|
|
bool NullTerminated {
|
|
get {
|
|
return null_terminated;
|
|
}
|
|
}
|
|
|
|
public override string[] Prepare {
|
|
get {
|
|
if (CSType == MarshalType)
|
|
return new string [0];
|
|
|
|
ArrayList result = new ArrayList ();
|
|
result.Add (String.Format ("int cnt_{0} = {0} == null ? 0 : {0}.Length;", CallName));
|
|
result.Add (String.Format ("{0}[] native_{1} = new {0} [cnt_{1}" + (NullTerminated ? " + 1" : "") + "];", MarshalType.TrimEnd('[', ']'), CallName));
|
|
result.Add (String.Format ("for (int i = 0; i < cnt_{0}; i++)", CallName));
|
|
IGeneratable gen = Generatable;
|
|
if (gen is IManualMarshaler)
|
|
result.Add (String.Format ("\tnative_{0} [i] = {1};", CallName, (gen as IManualMarshaler).AllocNative (CallName + "[i]")));
|
|
else
|
|
result.Add (String.Format ("\tnative_{0} [i] = {1};", CallName, gen.CallByName (CallName + "[i]")));
|
|
|
|
if (NullTerminated)
|
|
result.Add (String.Format ("native_{0} [cnt_{0}] = IntPtr.Zero;", CallName));
|
|
return (string[]) result.ToArray (typeof (string));
|
|
}
|
|
}
|
|
|
|
public override string CallString {
|
|
get {
|
|
if (CSType != MarshalType)
|
|
return "native_" + CallName;
|
|
else
|
|
return CallName;
|
|
}
|
|
}
|
|
|
|
public override string[] Finish {
|
|
get {
|
|
if (CSType == MarshalType)
|
|
return new string [0];
|
|
|
|
IGeneratable gen = Generatable;
|
|
if (gen is IManualMarshaler) {
|
|
string [] result = new string [4];
|
|
result [0] = "for (int i = 0; i < native_" + CallName + ".Length" + (NullTerminated ? " - 1" : "") + "; i++) {";
|
|
result [1] = "\t" + CallName + " [i] = " + Generatable.FromNative ("native_" + CallName + "[i]") + ";";
|
|
result [2] = "\t" + (gen as IManualMarshaler).ReleaseNative ("native_" + CallName + "[i]") + ";";
|
|
result [3] = "}";
|
|
return result;
|
|
}
|
|
|
|
return new string [0];
|
|
}
|
|
}
|
|
}
|
|
|
|
public class ArrayCountPair : ArrayParameter {
|
|
|
|
XmlElement count_elem;
|
|
bool invert;
|
|
|
|
public ArrayCountPair (XmlElement array_elem, XmlElement count_elem, bool invert) : base (array_elem)
|
|
{
|
|
this.count_elem = count_elem;
|
|
this.invert = invert;
|
|
}
|
|
|
|
string CountNativeType {
|
|
get {
|
|
return SymbolTable.Table.GetMarshalType(count_elem.GetAttribute("type"));
|
|
}
|
|
}
|
|
|
|
string CountType {
|
|
get {
|
|
return SymbolTable.Table.GetCSType(count_elem.GetAttribute("type"));
|
|
}
|
|
}
|
|
|
|
string CountCast {
|
|
get {
|
|
if (CountType == "int")
|
|
return String.Empty;
|
|
else
|
|
return "(" + CountType + ") ";
|
|
}
|
|
}
|
|
|
|
string CountName {
|
|
get {
|
|
return SymbolTable.Table.MangleName (count_elem.GetAttribute("name"));
|
|
}
|
|
}
|
|
|
|
string CallCount (string name)
|
|
{
|
|
string result = CountCast + "(" + name + " == null ? 0 : " + name + ".Length)";
|
|
IGeneratable gen = SymbolTable.Table[count_elem.GetAttribute("type")];
|
|
return gen.CallByName (result);
|
|
}
|
|
|
|
public override string CallString {
|
|
get {
|
|
if (invert)
|
|
return CallCount (CallName) + ", " + base.CallString;
|
|
else
|
|
return base.CallString + ", " + CallCount (CallName);
|
|
}
|
|
}
|
|
|
|
public override string NativeSignature {
|
|
get {
|
|
if (invert)
|
|
return CountNativeType + " " + CountName + ", " + MarshalType + " " + Name;
|
|
else
|
|
return MarshalType + " " + Name + ", " + CountNativeType + " " + CountName;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class ErrorParameter : Parameter {
|
|
|
|
public ErrorParameter (XmlElement elem) : base (elem)
|
|
{
|
|
PassAs = "out";
|
|
}
|
|
|
|
public override string CallString {
|
|
get {
|
|
return "out error";
|
|
}
|
|
}
|
|
}
|
|
|
|
public class StructParameter : Parameter {
|
|
|
|
public StructParameter (XmlElement elem) : base (elem) {}
|
|
|
|
public override string MarshalType {
|
|
get {
|
|
return "IntPtr";
|
|
}
|
|
}
|
|
|
|
public override string[] Prepare {
|
|
get {
|
|
if (PassAs == "out")
|
|
return new string [] { "IntPtr native_" + CallName + " = Marshal.AllocHGlobal (Marshal.SizeOf (typeof (" + Generatable.QualifiedName + ")));"};
|
|
else
|
|
return new string [] { "IntPtr native_" + CallName + " = " + (Generatable as IManualMarshaler).AllocNative (CallName) + ";"};
|
|
}
|
|
}
|
|
|
|
public override string CallString {
|
|
get {
|
|
return "native_" + CallName;
|
|
}
|
|
}
|
|
|
|
public override string[] Finish {
|
|
get {
|
|
string[] result = new string [2];
|
|
result [0] = CallName + " = " + FromNative ("native_" + CallName) + ";";
|
|
result [1] = (Generatable as IManualMarshaler).ReleaseNative ("native_" + CallName) + ";";
|
|
return result;
|
|
}
|
|
}
|
|
|
|
public override string NativeSignature {
|
|
get {
|
|
return "IntPtr " + CallName;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class Parameters : IEnumerable {
|
|
|
|
ArrayList param_list = new ArrayList ();
|
|
XmlElement elem;
|
|
bool first_is_instance;
|
|
|
|
public Parameters (XmlElement elem) : this (elem, false) { }
|
|
|
|
public Parameters (XmlElement elem, bool first_is_instance)
|
|
{
|
|
if (elem == null)
|
|
valid = true;
|
|
this.elem = elem;
|
|
this.first_is_instance = first_is_instance;
|
|
if (first_is_instance)
|
|
is_static = false;
|
|
}
|
|
|
|
public int Count {
|
|
get {
|
|
return param_list.Count;
|
|
}
|
|
}
|
|
|
|
public int VisibleCount {
|
|
get {
|
|
int visible = 0;
|
|
foreach (Parameter p in this) {
|
|
if (!IsHidden (p))
|
|
visible++;
|
|
}
|
|
return visible;
|
|
}
|
|
}
|
|
|
|
public Parameter this [int idx] {
|
|
get {
|
|
return param_list [idx] as Parameter;
|
|
}
|
|
}
|
|
|
|
public bool IsHidden (Parameter p)
|
|
{
|
|
int idx = param_list.IndexOf (p);
|
|
|
|
if (idx > 0 && p.IsLength && p.PassAs == String.Empty && this [idx - 1].IsString)
|
|
return true;
|
|
|
|
if (p.IsCount && ((idx > 0 && this [idx - 1].IsArray) ||
|
|
(idx < Count - 1 && this [idx + 1].IsArray)))
|
|
return true;
|
|
|
|
if (p.CType == "GError**")
|
|
return true;
|
|
|
|
if (HasCB || HideData) {
|
|
if (p.IsUserData && (idx == Count - 1))
|
|
return true;
|
|
if (p.IsUserData && (idx == Count - 2) && this [Count - 1] is ErrorParameter)
|
|
return true;
|
|
if (p.IsUserData && idx > 0 &&
|
|
this [idx - 1].Generatable is CallbackGen)
|
|
return true;
|
|
if (p.IsDestroyNotify && (idx == Count - 1) &&
|
|
this [idx - 1].IsUserData)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool has_cb;
|
|
public bool HasCB {
|
|
get { return has_cb; }
|
|
set { has_cb = value; }
|
|
}
|
|
|
|
public bool HasOutParam {
|
|
get {
|
|
foreach (Parameter p in this)
|
|
if (p.PassAs == "out")
|
|
return true;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool hide_data;
|
|
public bool HideData {
|
|
get { return hide_data; }
|
|
set { hide_data = value; }
|
|
}
|
|
|
|
bool is_static;
|
|
public bool Static {
|
|
get { return is_static; }
|
|
set { is_static = value; }
|
|
}
|
|
|
|
void Clear ()
|
|
{
|
|
elem = null;
|
|
param_list.Clear ();
|
|
param_list = null;
|
|
}
|
|
|
|
public IEnumerator GetEnumerator ()
|
|
{
|
|
return param_list.GetEnumerator ();
|
|
}
|
|
|
|
bool valid = false;
|
|
|
|
public bool Validate ()
|
|
{
|
|
if (valid)
|
|
return true;
|
|
|
|
if (elem == null)
|
|
return false;
|
|
|
|
for (int i = first_is_instance ? 1 : 0; i < elem.ChildNodes.Count; i++) {
|
|
XmlElement parm = elem.ChildNodes [i] as XmlElement;
|
|
if (parm == null || parm.Name != "parameter")
|
|
continue;
|
|
Parameter p = new Parameter (parm);
|
|
|
|
if (p.IsEllipsis) {
|
|
Console.Write("Ellipsis parameter ");
|
|
Clear ();
|
|
return false;
|
|
}
|
|
|
|
if ((p.CSType == "") || (p.Name == "") ||
|
|
(p.MarshalType == "") || (SymbolTable.Table.CallByName(p.CType, p.Name) == "")) {
|
|
Console.Write ("Invalid parameter {0} of type {1}", p.Name, p.CType);
|
|
Clear ();
|
|
return false;
|
|
}
|
|
|
|
IGeneratable gen = p.Generatable;
|
|
|
|
if (p.IsArray) {
|
|
p = new ArrayParameter (parm);
|
|
if (i < elem.ChildNodes.Count - 1) {
|
|
XmlElement next = elem.ChildNodes [i + 1] as XmlElement;
|
|
if (next != null || next.Name == "parameter") {
|
|
Parameter c = new Parameter (next);
|
|
if (c.IsCount) {
|
|
p = new ArrayCountPair (parm, next, false);
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
} else if (p.IsCount && i < elem.ChildNodes.Count - 1) {
|
|
XmlElement next = elem.ChildNodes [i + 1] as XmlElement;
|
|
if (next != null || next.Name == "parameter") {
|
|
Parameter a = new Parameter (next);
|
|
if (a.IsArray) {
|
|
p = new ArrayCountPair (next, parm, true);
|
|
i++;
|
|
}
|
|
}
|
|
} else if (p.CType == "GError**")
|
|
p = new ErrorParameter (parm);
|
|
else if (gen is StructBase || gen is ByRefGen) {
|
|
p = new StructParameter (parm);
|
|
} else if (gen is CallbackGen) {
|
|
has_cb = true;
|
|
}
|
|
param_list.Add (p);
|
|
}
|
|
|
|
if (has_cb && Count > 2 && this [Count - 3].Generatable is CallbackGen && this [Count - 2].IsUserData && this [Count - 1].IsDestroyNotify)
|
|
this [Count - 3].Scope = "notified";
|
|
|
|
valid = true;
|
|
return true;
|
|
}
|
|
|
|
public bool IsAccessor {
|
|
get {
|
|
return VisibleCount == 1 && AccessorParam.PassAs == "out";
|
|
}
|
|
}
|
|
|
|
public Parameter AccessorParam {
|
|
get {
|
|
foreach (Parameter p in this) {
|
|
if (!IsHidden (p))
|
|
return p;
|
|
}
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public string AccessorReturnType {
|
|
get {
|
|
Parameter p = AccessorParam;
|
|
if (p != null)
|
|
return p.CSType;
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public string AccessorName {
|
|
get {
|
|
Parameter p = AccessorParam;
|
|
if (p != null)
|
|
return p.Name;
|
|
else
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public string ImportSignature {
|
|
get {
|
|
if (Count == 0)
|
|
return String.Empty;
|
|
|
|
string[] result = new string [Count];
|
|
for (int i = 0; i < Count; i++)
|
|
result [i] = this [i].NativeSignature;
|
|
|
|
return String.Join (", ", result);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|