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XmlSerializationWriterILGen.cs
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XmlSerializationWriterILGen.cs
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//------------------------------------------------------------------------------
// <copyright file="XmlSerializationWriterILGen.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
//------------------------------------------------------------------------------
namespace System.Xml.Serialization {
using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
using System.Reflection.Emit;
using System.Text;
using System.Xml.Schema;
internal class XmlSerializationWriterILGen : XmlSerializationILGen {
internal XmlSerializationWriterILGen(TypeScope[] scopes, string access, string className)
: base(scopes, access, className) {
}
internal void GenerateBegin() {
this.typeBuilder = CodeGenerator.CreateTypeBuilder(
ModuleBuilder,
ClassName,
TypeAttributes | TypeAttributes.BeforeFieldInit,
typeof(XmlSerializationWriter),
CodeGenerator.EmptyTypeArray);
foreach (TypeScope scope in Scopes) {
foreach (TypeMapping mapping in scope.TypeMappings) {
if (mapping is StructMapping || mapping is EnumMapping) {
MethodNames.Add(mapping, NextMethodName(mapping.TypeDesc.Name));
}
}
RaCodeGen.WriteReflectionInit(scope);
}
}
internal override void GenerateMethod(TypeMapping mapping) {
if (GeneratedMethods.Contains(mapping))
return;
GeneratedMethods[mapping] = mapping;
if (mapping is StructMapping) {
WriteStructMethod((StructMapping)mapping);
}
else if (mapping is EnumMapping) {
WriteEnumMethod((EnumMapping)mapping);
}
}
internal Type GenerateEnd() {
GenerateReferencedMethods();
GenerateInitCallbacksMethod();
this.typeBuilder.DefineDefaultConstructor(
CodeGenerator.PublicMethodAttributes);
return this.typeBuilder.CreateType();
}
internal string GenerateElement(XmlMapping xmlMapping) {
if (!xmlMapping.IsWriteable)
return null;
if (!xmlMapping.GenerateSerializer)
throw new ArgumentException(Res.GetString(Res.XmlInternalError), "xmlMapping");
if (xmlMapping is XmlTypeMapping)
return GenerateTypeElement((XmlTypeMapping)xmlMapping);
else if (xmlMapping is XmlMembersMapping)
return GenerateMembersElement((XmlMembersMapping)xmlMapping);
else
throw new ArgumentException(Res.GetString(Res.XmlInternalError), "xmlMapping");
}
void GenerateInitCallbacksMethod() {
ilg = new CodeGenerator(this.typeBuilder);
ilg.BeginMethod(typeof(void), "InitCallbacks", CodeGenerator.EmptyTypeArray, CodeGenerator.EmptyStringArray,
CodeGenerator.ProtectedOverrideMethodAttributes);
ilg.EndMethod();
}
void WriteQualifiedNameElement(string name, string ns, object defaultValue, SourceInfo source, bool nullable, TypeMapping mapping) {
bool hasDefault = defaultValue != null && defaultValue != DBNull.Value;
if (hasDefault) {
throw CodeGenerator.NotSupported("XmlQualifiedName DefaultValue not supported. Fail in WriteValue()");
}
List<Type> argTypes = new List<Type>();
ilg.Ldarg(0);
ilg.Ldstr(name);
argTypes.Add(typeof(string));
if (ns != null) {
ilg.Ldstr(ns);
argTypes.Add(typeof(string));
}
source.Load(mapping.TypeDesc.Type);
argTypes.Add(mapping.TypeDesc.Type);
MethodInfo XmlSerializationWriter_WriteXXX = typeof(XmlSerializationWriter).GetMethod(
nullable ? ("WriteNullableQualifiedNameLiteral") : "WriteElementQualifiedName",
CodeGenerator.InstanceBindingFlags,
null,
argTypes.ToArray(),
null
);
ilg.Call(XmlSerializationWriter_WriteXXX);
if (hasDefault) {
throw CodeGenerator.NotSupported("XmlQualifiedName DefaultValue not supported. Fail in WriteValue()");
}
}
void WriteEnumValue(EnumMapping mapping, SourceInfo source, out Type returnType) {
string methodName = ReferenceMapping(mapping);
#if DEBUG
// use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
if (methodName == null) throw new InvalidOperationException(Res.GetString(Res.XmlInternalErrorMethod, mapping.TypeDesc.Name) + Environment.StackTrace);
#endif
// For enum, its write method (eg. Write1_Gender) could be called multiple times
// prior to its declaration.
MethodBuilder methodBuilder = EnsureMethodBuilder(typeBuilder,
methodName,
CodeGenerator.PrivateMethodAttributes,
typeof(string),
new Type[] { mapping.TypeDesc.Type });
ilg.Ldarg(0);
source.Load(mapping.TypeDesc.Type);
ilg.Call(methodBuilder);
returnType = typeof(string);
}
void WritePrimitiveValue(TypeDesc typeDesc, SourceInfo source, out Type returnType) {
if (typeDesc == StringTypeDesc || typeDesc.FormatterName == "String") {
source.Load(typeDesc.Type);
returnType = typeDesc.Type;
}
else {
if (!typeDesc.HasCustomFormatter) {
Type argType = typeDesc.Type;
MethodInfo XmlConvert_ToString = typeof(XmlConvert).GetMethod(
"ToString",
CodeGenerator.StaticBindingFlags,
null,
new Type[] { argType },
null
);
source.Load(typeDesc.Type);
ilg.Call(XmlConvert_ToString);
returnType = XmlConvert_ToString.ReturnType;
}
else {
// Only these methods below that is non Static and need to ldarg("this") for Call.
BindingFlags bindingFlags = CodeGenerator.StaticBindingFlags;
if (typeDesc.FormatterName == "XmlQualifiedName") {
bindingFlags = CodeGenerator.InstanceBindingFlags;
ilg.Ldarg(0);
}
MethodInfo FromXXX = typeof(XmlSerializationWriter).GetMethod(
"From" + typeDesc.FormatterName,
bindingFlags,
null,
new Type[] { typeDesc.Type },
null
);
source.Load(typeDesc.Type);
ilg.Call(FromXXX);
returnType = FromXXX.ReturnType;
}
}
}
void WritePrimitive(string method, string name, string ns, object defaultValue, SourceInfo source, TypeMapping mapping, bool writeXsiType, bool isElement, bool isNullable) {
TypeDesc typeDesc = mapping.TypeDesc;
bool hasDefault = defaultValue != null && defaultValue != DBNull.Value && mapping.TypeDesc.HasDefaultSupport;
if (hasDefault) {
if (mapping is EnumMapping) {
#if DEBUG
// use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
if (defaultValue.GetType() != typeof(string)) throw new InvalidOperationException(Res.GetString(Res.XmlInternalErrorDetails, name + " has invalid default type " + defaultValue.GetType().Name));
#endif
source.Load(mapping.TypeDesc.Type);
string enumDefaultValue = null;
if (((EnumMapping)mapping).IsFlags) {
string[] values = ((string)defaultValue).Split(null);
for (int i = 0; i < values.Length; i++) {
if (values[i] == null || values[i].Length == 0)
continue;
if (i > 0)
enumDefaultValue += ", ";
enumDefaultValue += values[i];
}
}
else {
enumDefaultValue = (string)defaultValue;
}
ilg.Ldc(Enum.Parse(mapping.TypeDesc.Type, enumDefaultValue, false));
ilg.If(Cmp.NotEqualTo); // " != "
}
else {
WriteCheckDefault(source, defaultValue, isNullable);
}
}
List<Type> argTypes = new List<Type>();
ilg.Ldarg(0);
argTypes.Add(typeof(String));
ilg.Ldstr(name);
if (ns != null) {
argTypes.Add(typeof(String));
ilg.Ldstr(ns);
}
Type argType;
if (mapping is EnumMapping) {
WriteEnumValue((EnumMapping)mapping, source, out argType);
argTypes.Add(argType);
}
else {
WritePrimitiveValue(typeDesc, source, out argType);
argTypes.Add(argType);
}
if (writeXsiType) {
argTypes.Add(typeof(XmlQualifiedName));
ConstructorInfo XmlQualifiedName_ctor = typeof(XmlQualifiedName).GetConstructor(
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldstr(mapping.TypeName);
ilg.Ldstr(mapping.Namespace);
ilg.New(XmlQualifiedName_ctor);
}
MethodInfo XmlSerializationWriter_method = typeof(XmlSerializationWriter).GetMethod(
method,
CodeGenerator.InstanceBindingFlags,
null,
argTypes.ToArray(),
null
);
ilg.Call(XmlSerializationWriter_method);
if (hasDefault) {
ilg.EndIf();
}
}
void WriteTag(string methodName, string name, string ns) {
MethodInfo XmlSerializationWriter_Method = typeof(XmlSerializationWriter).GetMethod(
methodName,
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Ldstr(name);
ilg.Ldstr(ns);
ilg.Call(XmlSerializationWriter_Method);
}
void WriteTag(string methodName, string name, string ns, bool writePrefixed) {
MethodInfo XmlSerializationWriter_Method = typeof(XmlSerializationWriter).GetMethod(
methodName,
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(string), typeof(string), typeof(object), typeof(Boolean) },
null
);
ilg.Ldarg(0);
ilg.Ldstr(name);
ilg.Ldstr(ns);
ilg.Load(null);
ilg.Ldc(writePrefixed);
ilg.Call(XmlSerializationWriter_Method);
}
void WriteStartElement(string name, string ns, bool writePrefixed) {
WriteTag("WriteStartElement", name, ns, writePrefixed);
}
void WriteEndElement() {
MethodInfo XmlSerializationWriter_WriteEndElement = typeof(XmlSerializationWriter).GetMethod(
"WriteEndElement",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_WriteEndElement);
}
void WriteEndElement(string source) {
MethodInfo XmlSerializationWriter_WriteEndElement = typeof(XmlSerializationWriter).GetMethod(
"WriteEndElement",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(Object) },
null
);
object oVar = ilg.GetVariable(source);
ilg.Ldarg(0);
ilg.Load(oVar);
ilg.ConvertValue(ilg.GetVariableType(oVar), typeof(Object));
ilg.Call(XmlSerializationWriter_WriteEndElement);
}
void WriteLiteralNullTag(string name, string ns) {
WriteTag("WriteNullTagLiteral", name, ns);
}
void WriteEmptyTag(string name, string ns) {
WriteTag("WriteEmptyTag", name, ns);
}
string GenerateMembersElement(XmlMembersMapping xmlMembersMapping) {
ElementAccessor element = xmlMembersMapping.Accessor;
MembersMapping mapping = (MembersMapping)element.Mapping;
bool hasWrapperElement = mapping.HasWrapperElement;
bool writeAccessors = mapping.WriteAccessors;
string methodName = NextMethodName(element.Name);
ilg = new CodeGenerator(this.typeBuilder);
ilg.BeginMethod(
typeof(void),
methodName,
new Type[] { typeof(object[]) },
new string[] { "p" },
CodeGenerator.PublicMethodAttributes
);
MethodInfo XmlSerializationWriter_WriteStartDocument = typeof(XmlSerializationWriter).GetMethod(
"WriteStartDocument",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_WriteStartDocument);
MethodInfo XmlSerializationWriter_TopLevelElement = typeof(XmlSerializationWriter).GetMethod(
"TopLevelElement",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_TopLevelElement);
// in the top-level method add check for the parameters length,
// because visual basic does not have a concept of an <out> parameter it uses <ByRef> instead
// so sometime we think that we have more parameters then supplied
LocalBuilder pLengthLoc = ilg.DeclareLocal(typeof(int), "pLength");
ilg.Ldarg("p");
ilg.Ldlen();
ilg.Stloc(pLengthLoc);
if (hasWrapperElement) {
WriteStartElement(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""), false);
int xmlnsMember = FindXmlnsIndex(mapping.Members);
if (xmlnsMember >= 0) {
MemberMapping member = mapping.Members[xmlnsMember];
string source = "((" + typeof(XmlSerializerNamespaces).FullName + ")p[" + xmlnsMember.ToString(CultureInfo.InvariantCulture) + "])";
ilg.Ldloc(pLengthLoc);
ilg.Ldc(xmlnsMember);
ilg.If(Cmp.GreaterThan);
WriteNamespaces(source);
ilg.EndIf();
}
for (int i = 0; i < mapping.Members.Length; i++) {
MemberMapping member = mapping.Members[i];
if (member.Attribute != null && !member.Ignore) {
SourceInfo source = new SourceInfo("p[" + i.ToString(CultureInfo.InvariantCulture) + "]", null, null, pLengthLoc.LocalType.GetElementType(), ilg);
SourceInfo specifiedSource = null;
int specifiedPosition = 0;
if (member.CheckSpecified != SpecifiedAccessor.None) {
string memberNameSpecified = member.Name + "Specified";
for (int j = 0; j < mapping.Members.Length; j++) {
if (mapping.Members[j].Name == memberNameSpecified) {
specifiedSource = new SourceInfo("((bool)p[" + j.ToString(CultureInfo.InvariantCulture) + "])", null, null, typeof(bool), ilg);
specifiedPosition = j;
break;
}
}
}
ilg.Ldloc(pLengthLoc);
ilg.Ldc(i);
ilg.If(Cmp.GreaterThan);
if (specifiedSource != null) {
Label labelTrue = ilg.DefineLabel();
Label labelEnd = ilg.DefineLabel();
ilg.Ldloc(pLengthLoc);
ilg.Ldc(specifiedPosition);
ilg.Ble(labelTrue);
specifiedSource.Load(typeof(bool));
ilg.Br_S(labelEnd);
ilg.MarkLabel(labelTrue);
ilg.Ldc(true);
ilg.MarkLabel(labelEnd);
ilg.If();
}
WriteMember(source, member.Attribute, member.TypeDesc, "p");
if (specifiedSource != null) {
ilg.EndIf();
}
ilg.EndIf();
}
}
}
for (int i = 0; i < mapping.Members.Length; i++) {
MemberMapping member = mapping.Members[i];
if (member.Xmlns != null)
continue;
if (member.Ignore)
continue;
SourceInfo specifiedSource = null;
int specifiedPosition = 0;
if (member.CheckSpecified != SpecifiedAccessor.None) {
string memberNameSpecified = member.Name + "Specified";
for (int j = 0; j < mapping.Members.Length; j++) {
if (mapping.Members[j].Name == memberNameSpecified) {
specifiedSource = new SourceInfo("((bool)p[" + j.ToString(CultureInfo.InvariantCulture) + "])", null, null, typeof(bool), ilg);
specifiedPosition = j;
break;
}
}
}
ilg.Ldloc(pLengthLoc);
ilg.Ldc(i);
ilg.If(Cmp.GreaterThan);
if (specifiedSource != null) {
Label labelTrue = ilg.DefineLabel();
Label labelEnd = ilg.DefineLabel();
ilg.Ldloc(pLengthLoc);
ilg.Ldc(specifiedPosition);
ilg.Ble(labelTrue);
specifiedSource.Load(typeof(bool));
ilg.Br_S(labelEnd);
ilg.MarkLabel(labelTrue);
ilg.Ldc(true);
ilg.MarkLabel(labelEnd);
ilg.If();
}
string source = "p[" + i.ToString(CultureInfo.InvariantCulture) + "]";
string enumSource = null;
if (member.ChoiceIdentifier != null) {
for (int j = 0; j < mapping.Members.Length; j++) {
if (mapping.Members[j].Name == member.ChoiceIdentifier.MemberName) {
enumSource = "((" + mapping.Members[j].TypeDesc.CSharpName + ")p[" + j.ToString(CultureInfo.InvariantCulture) + "]" + ")";
break;
}
}
#if DEBUG
// use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
if (enumSource == null) throw new InvalidOperationException(Res.GetString(Res.XmlInternalErrorDetails, "Can not find " + member.ChoiceIdentifier.MemberName + " in the members mapping."));
#endif
}
// override writeAccessors choice when we've written a wrapper element
WriteMember(new SourceInfo(source, source, null, null, ilg), enumSource, member.ElementsSortedByDerivation, member.Text, member.ChoiceIdentifier, member.TypeDesc, writeAccessors || hasWrapperElement);
if (specifiedSource != null) {
ilg.EndIf();
}
ilg.EndIf();
}
if (hasWrapperElement) {
WriteEndElement();
}
ilg.EndMethod();
return methodName;
}
string GenerateTypeElement(XmlTypeMapping xmlTypeMapping) {
ElementAccessor element = xmlTypeMapping.Accessor;
TypeMapping mapping = element.Mapping;
string methodName = NextMethodName(element.Name);
ilg = new CodeGenerator(this.typeBuilder);
ilg.BeginMethod(
typeof(void),
methodName,
new Type[] { typeof(object) },
new string[] { "o" },
CodeGenerator.PublicMethodAttributes
);
MethodInfo XmlSerializationWriter_WriteStartDocument = typeof(XmlSerializationWriter).GetMethod(
"WriteStartDocument",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_WriteStartDocument);
ilg.If(ilg.GetArg("o"), Cmp.EqualTo, null);
if (element.IsNullable) {
WriteLiteralNullTag(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""));
}
else
WriteEmptyTag(element.Name, (element.Form == XmlSchemaForm.Qualified ? element.Namespace : ""));
ilg.GotoMethodEnd();
ilg.EndIf();
if (!mapping.TypeDesc.IsValueType && !mapping.TypeDesc.Type.IsPrimitive) {
MethodInfo XmlSerializationWriter_TopLevelElement = typeof(XmlSerializationWriter).GetMethod(
"TopLevelElement",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_TopLevelElement);
}
WriteMember(new SourceInfo("o", "o", null, typeof(object), ilg), null, new ElementAccessor[] { element }, null, null, mapping.TypeDesc, true);
ilg.EndMethod();
return methodName;
}
string NextMethodName(string name) {
return "Write" + (++NextMethodNumber).ToString(null, NumberFormatInfo.InvariantInfo) + "_" + CodeIdentifier.MakeValidInternal(name);
}
void WriteEnumMethod(EnumMapping mapping) {
string methodName = (string)MethodNames[mapping];
List<Type> argTypes = new List<Type>();
List<string> argNames = new List<string>();
argTypes.Add(mapping.TypeDesc.Type);
argNames.Add("v");
ilg = new CodeGenerator(this.typeBuilder);
ilg.BeginMethod(
typeof(string),
GetMethodBuilder(methodName),
argTypes.ToArray(),
argNames.ToArray(),
CodeGenerator.PrivateMethodAttributes);
LocalBuilder sLoc = ilg.DeclareLocal(typeof(string), "s");
ilg.Load(null);
ilg.Stloc(sLoc);
ConstantMapping[] constants = mapping.Constants;
if (constants.Length > 0) {
Hashtable values = new Hashtable();
List<Label> caseLabels = new List<Label>();
List<string> retValues = new List<string>();
Label defaultLabel = ilg.DefineLabel();
Label endSwitchLabel = ilg.DefineLabel();
// This local is necessary; otherwise, it becomes if/else
LocalBuilder localTmp = ilg.DeclareLocal(mapping.TypeDesc.Type, "localTmp");
ilg.Ldarg("v");
ilg.Stloc(localTmp);
for (int i = 0; i < constants.Length; i++) {
ConstantMapping c = constants[i];
if (values[c.Value] == null) {
Label caseLabel = ilg.DefineLabel();
ilg.Ldloc(localTmp);
ilg.Ldc(Enum.ToObject(mapping.TypeDesc.Type, c.Value));
ilg.Beq(caseLabel);
caseLabels.Add(caseLabel);
retValues.Add(c.XmlName);
values.Add(c.Value, c.Value);
}
}
if (mapping.IsFlags) {
ilg.Br(defaultLabel);
for (int i = 0; i < caseLabels.Count; i++) {
ilg.MarkLabel(caseLabels[i]);
ilg.Ldc(retValues[i]);
ilg.Stloc(sLoc);
ilg.Br(endSwitchLabel);
}
ilg.MarkLabel(defaultLabel);
RaCodeGen.ILGenForEnumLongValue(ilg, "v");
LocalBuilder strArray = ilg.DeclareLocal(typeof(String[]), "strArray");
ilg.NewArray(typeof(String), constants.Length);
ilg.Stloc(strArray);
for (int i = 0; i < constants.Length; i++) {
ConstantMapping c = constants[i];
ilg.Ldloc(strArray);
ilg.Ldc(i);
ilg.Ldstr(c.XmlName);
ilg.Stelem(typeof(String));
}
ilg.Ldloc(strArray);
LocalBuilder longArray = ilg.DeclareLocal(typeof(long[]), "longArray");
ilg.NewArray(typeof(long), constants.Length);
ilg.Stloc(longArray);
for (int i = 0; i < constants.Length; i++) {
ConstantMapping c = constants[i];
ilg.Ldloc(longArray);
ilg.Ldc(i);
ilg.Ldc(c.Value);
ilg.Stelem(typeof(long));
}
ilg.Ldloc(longArray);
ilg.Ldstr(mapping.TypeDesc.FullName);
MethodInfo XmlSerializationWriter_FromEnum = typeof(XmlSerializationWriter).GetMethod(
"FromEnum",
CodeGenerator.StaticBindingFlags,
null,
new Type[] { typeof(Int64), typeof(String[]), typeof(Int64[]), typeof(String) },
null
);
ilg.Call(XmlSerializationWriter_FromEnum);
ilg.Stloc(sLoc);
ilg.Br(endSwitchLabel);
}
else {
ilg.Br(defaultLabel);
// Case bodies
for (int i = 0; i < caseLabels.Count; i++) {
ilg.MarkLabel(caseLabels[i]);
ilg.Ldc(retValues[i]);
ilg.Stloc(sLoc);
ilg.Br(endSwitchLabel);
}
MethodInfo CultureInfo_get_InvariantCulture = typeof(CultureInfo).GetMethod(
"get_InvariantCulture",
CodeGenerator.StaticBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
MethodInfo Int64_ToString = typeof(Int64).GetMethod(
"ToString",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(IFormatProvider) },
null
);
MethodInfo XmlSerializationWriter_CreateInvalidEnumValueException = typeof(XmlSerializationWriter).GetMethod(
"CreateInvalidEnumValueException",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(object), typeof(string) },
null
);
// Default body
ilg.MarkLabel(defaultLabel);
ilg.Ldarg(0);
ilg.Ldarg("v");
ilg.ConvertValue(mapping.TypeDesc.Type, typeof(Int64));
LocalBuilder numLoc = ilg.DeclareLocal(typeof(Int64), "num");
ilg.Stloc(numLoc);
// Invoke method on Value type need address
ilg.LdlocAddress(numLoc);
ilg.Call(CultureInfo_get_InvariantCulture);
ilg.Call(Int64_ToString);
ilg.Ldstr(mapping.TypeDesc.FullName);
ilg.Call(XmlSerializationWriter_CreateInvalidEnumValueException);
ilg.Throw();
}
ilg.MarkLabel(endSwitchLabel);
}
ilg.Ldloc(sLoc);
ilg.EndMethod();
}
void WriteDerivedTypes(StructMapping mapping) {
for (StructMapping derived = mapping.DerivedMappings; derived != null; derived = derived.NextDerivedMapping) {
ilg.InitElseIf();
WriteTypeCompare("t", derived.TypeDesc.Type);
ilg.AndIf();
string methodName = ReferenceMapping(derived);
#if DEBUG
// use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
if (methodName == null) throw new InvalidOperationException("deriaved from " + mapping.TypeDesc.FullName + ", " + Res.GetString(Res.XmlInternalErrorMethod, derived.TypeDesc.Name) + Environment.StackTrace);
#endif
List<Type> argTypes = new List<Type>();
ilg.Ldarg(0);
argTypes.Add(typeof(string));
ilg.Ldarg("n");
argTypes.Add(typeof(string));
ilg.Ldarg("ns");
object oVar = ilg.GetVariable("o");
Type oType = ilg.GetVariableType(oVar);
ilg.Load(oVar);
ilg.ConvertValue(oType, derived.TypeDesc.Type);
argTypes.Add(derived.TypeDesc.Type);
if (derived.TypeDesc.IsNullable) {
argTypes.Add(typeof(Boolean));
ilg.Ldarg("isNullable");
}
argTypes.Add(typeof(Boolean));
ilg.Ldc(true);
MethodInfo methodBuilder = EnsureMethodBuilder(typeBuilder,
methodName,
CodeGenerator.PrivateMethodAttributes,
typeof(void),
argTypes.ToArray());
ilg.Call(methodBuilder);
ilg.GotoMethodEnd();
WriteDerivedTypes(derived);
}
}
void WriteEnumAndArrayTypes() {
foreach (TypeScope scope in Scopes) {
foreach (Mapping m in scope.TypeMappings) {
if (m is EnumMapping) {
EnumMapping mapping = (EnumMapping)m;
ilg.InitElseIf();
WriteTypeCompare("t", mapping.TypeDesc.Type);
// WriteXXXTypeCompare leave bool on the stack
ilg.AndIf();
string methodName = ReferenceMapping(mapping);
#if DEBUG
// use exception in the place of Debug.Assert to avoid throwing asserts from a server process such as aspnet_ewp.exe
if (methodName == null) throw new InvalidOperationException(Res.GetString(Res.XmlInternalErrorMethod, mapping.TypeDesc.Name) + Environment.StackTrace);
#endif
MethodInfo XmlSerializationWriter_get_Writer = typeof(XmlSerializationWriter).GetMethod(
"get_Writer",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
MethodInfo XmlWriter_WriteStartElement = typeof(XmlWriter).GetMethod(
"WriteStartElement",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_get_Writer);
ilg.Ldarg("n");
ilg.Ldarg("ns");
ilg.Call(XmlWriter_WriteStartElement);
MethodInfo XmlSerializationWriter_WriteXsiType = typeof(XmlSerializationWriter).GetMethod(
"WriteXsiType",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Ldstr(mapping.TypeName);
ilg.Ldstr(mapping.Namespace);
ilg.Call(XmlSerializationWriter_WriteXsiType);
MethodBuilder methodBuilder = EnsureMethodBuilder(typeBuilder,
methodName,
CodeGenerator.PrivateMethodAttributes,
typeof(string),
new Type[] { mapping.TypeDesc.Type }
);
MethodInfo XmlWriter_WriteString = typeof(XmlWriter).GetMethod(
"WriteString",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_get_Writer);
object oVar = ilg.GetVariable("o");
ilg.Ldarg(0);
ilg.Load(oVar);
ilg.ConvertValue(ilg.GetVariableType(oVar), mapping.TypeDesc.Type);
ilg.Call(methodBuilder);
ilg.Call(XmlWriter_WriteString);
MethodInfo XmlWriter_WriteEndElement = typeof(XmlWriter).GetMethod(
"WriteEndElement",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_get_Writer);
ilg.Call(XmlWriter_WriteEndElement);
ilg.GotoMethodEnd();
}
else if (m is ArrayMapping) {
ArrayMapping mapping = m as ArrayMapping;
if (mapping == null) continue;
ilg.InitElseIf();
if (mapping.TypeDesc.IsArray)
WriteArrayTypeCompare("t", mapping.TypeDesc.Type);
else
WriteTypeCompare("t", mapping.TypeDesc.Type);
// WriteXXXTypeCompare leave bool on the stack
ilg.AndIf();
ilg.EnterScope();
MethodInfo XmlSerializationWriter_get_Writer = typeof(XmlSerializationWriter).GetMethod(
"get_Writer",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
MethodInfo XmlWriter_WriteStartElement = typeof(XmlWriter).GetMethod(
"WriteStartElement",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_get_Writer);
ilg.Ldarg("n");
ilg.Ldarg("ns");
ilg.Call(XmlWriter_WriteStartElement);
MethodInfo XmlSerializationWriter_WriteXsiType = typeof(XmlSerializationWriter).GetMethod(
"WriteXsiType",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Ldstr(mapping.TypeName);
ilg.Ldstr(mapping.Namespace);
ilg.Call(XmlSerializationWriter_WriteXsiType);
WriteMember(new SourceInfo("o", "o", null, null, ilg), null, mapping.ElementsSortedByDerivation, null, null, mapping.TypeDesc, true);
MethodInfo XmlWriter_WriteEndElement = typeof(XmlWriter).GetMethod(
"WriteEndElement",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ilg.Ldarg(0);
ilg.Call(XmlSerializationWriter_get_Writer);
ilg.Call(XmlWriter_WriteEndElement);
ilg.GotoMethodEnd();
ilg.ExitScope();
}
}
}
}
void WriteStructMethod(StructMapping mapping) {
string methodName = (string)MethodNames[mapping];
ilg = new CodeGenerator(this.typeBuilder);
List<Type> argTypes = new List<Type>(5);
List<string> argNames = new List<string>(5);
argTypes.Add(typeof(string));
argNames.Add("n");
argTypes.Add(typeof(string));
argNames.Add("ns");
argTypes.Add(mapping.TypeDesc.Type);
argNames.Add("o");
if (mapping.TypeDesc.IsNullable) {
argTypes.Add(typeof(Boolean));
argNames.Add("isNullable");
}
argTypes.Add(typeof(Boolean));
argNames.Add("needType");
ilg.BeginMethod(typeof(void),
GetMethodBuilder(methodName),
argTypes.ToArray(),
argNames.ToArray(),
CodeGenerator.PrivateMethodAttributes);
if (mapping.TypeDesc.IsNullable) {
ilg.If(ilg.GetArg("o"), Cmp.EqualTo, null);
{
ilg.If(ilg.GetArg("isNullable"), Cmp.EqualTo, true);
{
MethodInfo XmlSerializationWriter_WriteNullTagLiteral = typeof(XmlSerializationWriter).GetMethod(
"WriteNullTagLiteral",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String) },
null
);
ilg.Ldarg(0);
ilg.Ldarg("n");
ilg.Ldarg("ns");
ilg.Call(XmlSerializationWriter_WriteNullTagLiteral);
}
ilg.EndIf();
ilg.GotoMethodEnd();
}
ilg.EndIf();
}
ilg.If(ilg.GetArg("needType"), Cmp.NotEqualTo, true); // if (!needType)
LocalBuilder tLoc = ilg.DeclareLocal(typeof(Type), "t");
MethodInfo Object_GetType = typeof(object).GetMethod(
"GetType",
CodeGenerator.InstanceBindingFlags,
null,
CodeGenerator.EmptyTypeArray,
null
);
ArgBuilder oArg = ilg.GetArg("o");
ilg.LdargAddress(oArg);
ilg.ConvertAddress(oArg.ArgType, typeof(object));
ilg.Call(Object_GetType);
ilg.Stloc(tLoc);
WriteTypeCompare("t", mapping.TypeDesc.Type);
// Bool on the stack from WriteTypeCompare.
ilg.If(); // if (t == typeof(...))
WriteDerivedTypes(mapping);
if (mapping.TypeDesc.IsRoot)
WriteEnumAndArrayTypes();
ilg.Else();
if (mapping.TypeDesc.IsRoot) {
MethodInfo XmlSerializationWriter_WriteTypedPrimitive = typeof(XmlSerializationWriter).GetMethod(
"WriteTypedPrimitive",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(String), typeof(String), typeof(Object), typeof(Boolean) },
null
);
ilg.Ldarg(0);
ilg.Ldarg("n");
ilg.Ldarg("ns");
ilg.Ldarg("o");
ilg.Ldc(true);
ilg.Call(XmlSerializationWriter_WriteTypedPrimitive);
ilg.GotoMethodEnd();
}
else {
MethodInfo XmlSerializationWriter_CreateUnknownTypeException = typeof(XmlSerializationWriter).GetMethod(
"CreateUnknownTypeException",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(Object) },
null
);
ilg.Ldarg(0);
ilg.Ldarg(oArg);
ilg.ConvertValue(oArg.ArgType, typeof(Object));
ilg.Call(XmlSerializationWriter_CreateUnknownTypeException);
ilg.Throw();
}
ilg.EndIf(); // if (t == typeof(...))
ilg.EndIf(); // if (!needType)
if (!mapping.TypeDesc.IsAbstract) {
if (mapping.TypeDesc.Type != null && typeof(XmlSchemaObject).IsAssignableFrom(mapping.TypeDesc.Type)) {
MethodInfo XmlSerializationWriter_set_EscapeName = typeof(XmlSerializationWriter).GetMethod(
"set_EscapeName",
CodeGenerator.InstanceBindingFlags,
null,
new Type[] { typeof(Boolean) },
null
);
ilg.Ldarg(0);
ilg.Ldc(false);
ilg.Call(XmlSerializationWriter_set_EscapeName);
}
string xmlnsSource = null;
MemberMapping[] members = TypeScope.GetAllMembers(mapping, memberInfos);
int xmlnsMember = FindXmlnsIndex(members);
if (xmlnsMember >= 0) {
MemberMapping member = members[xmlnsMember];
CodeIdentifier.CheckValidIdentifier(member.Name);
xmlnsSource = RaCodeGen.GetStringForMember("o", member.Name, mapping.TypeDesc);
}
ilg.Ldarg(0);
ilg.Ldarg("n");
ilg.Ldarg("ns");