public CodeExpression[] Generate(Table table, HardwireCodeGenerationContext generator, CodeTypeMemberCollection members)
{
bool isStatic = table.Get("static").Boolean;
string memberType = table.Get("type").String;
string name = table.Get("name").String;
string decltype = table.Get("decltype").String;
bool declvtype = table.Get("declvtype").Boolean;
bool canWrite = table.Get("write").Boolean;
bool canRead = table.Get("read").Boolean;
if (declvtype && canWrite)
{
generator.Warning("Member '{0}.{1}::Set' will be a no-op, as it's a member of a value type.", decltype, name);
}
MemberDescriptorAccess access = 0;
if (canWrite)
access = access | MemberDescriptorAccess.CanWrite;
if (canRead)
access = access | MemberDescriptorAccess.CanRead;
string className = GetPrefix() + "_" + Guid.NewGuid().ToString("N");
CodeTypeDeclaration classCode = new CodeTypeDeclaration(className);
classCode.TypeAttributes = System.Reflection.TypeAttributes.NestedPrivate | System.Reflection.TypeAttributes.Sealed;
classCode.BaseTypes.Add(typeof(HardwiredMemberDescriptor));
// protected HardwiredMemberDescriptor(Type memberType, string name, bool isStatic, MemberDescriptorAccess access)
CodeConstructor ctor = new CodeConstructor();
ctor.Attributes = MemberAttributes.Assembly;
ctor.BaseConstructorArgs.Add(new CodeTypeOfExpression(memberType));
ctor.BaseConstructorArgs.Add(new CodePrimitiveExpression(name));
ctor.BaseConstructorArgs.Add(new CodePrimitiveExpression(isStatic));
ctor.BaseConstructorArgs.Add(new CodeCastExpression(typeof(MemberDescriptorAccess), new CodePrimitiveExpression((int)access)));
classCode.Members.Add(ctor);
var thisExp = isStatic
? (CodeExpression)(new CodeTypeReferenceExpression(decltype))
: (CodeExpression)(new CodeCastExpression(decltype, new CodeVariableReferenceExpression("obj")));
if (canRead)
{
var memberExp = GetMemberAccessExpression(thisExp, name);
// protected virtual object GetValueImpl(Script script, object obj)
CodeMemberMethod m = new CodeMemberMethod();
classCode.Members.Add(m);
m.Name = "GetValueImpl";
m.Attributes = MemberAttributes.Override | MemberAttributes.Family;
m.ReturnType = new CodeTypeReference(typeof(object));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(Script), "script"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "obj"));
m.Statements.Add(new CodeMethodReturnStatement(memberExp));
}
if (canWrite)
{
// protected virtual object GetValueImpl(Script script, object obj)
CodeMemberMethod m = new CodeMemberMethod();
classCode.Members.Add(m);
m.Name = "SetValueImpl";
m.Attributes = MemberAttributes.Override | MemberAttributes.Family;
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(Script), "script"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "obj"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "value"));
var valExp = new CodeCastExpression(memberType, new CodeVariableReferenceExpression("value"));
if (isStatic)
{
var e = GetMemberAccessExpression(thisExp, name);
m.Statements.Add(new CodeAssignStatement(e, valExp));
}
else
{
m.Statements.Add(new CodeVariableDeclarationStatement(decltype, "tmp", thisExp));
var memberExp = GetMemberAccessExpression(new CodeVariableReferenceExpression("tmp"), name);
m.Statements.Add(new CodeAssignStatement(memberExp, valExp));
}
}
members.Add(classCode);
return new CodeExpression[] { new CodeObjectCreateExpression(className) };
}
private void EmitInvalid(HardwireCodeGenerationContext generator, CodeStatementCollection coll, string message)
{
generator.Warning(message);
coll.Add(new CodeThrowExceptionStatement(new CodeObjectCreateExpression(typeof(InvalidOperationException),
new CodePrimitiveExpression(message))));
}
public CodeExpression[] Generate(Table table, HardwireCodeGenerationContext generator, CodeTypeMemberCollection members)
{
bool isStatic = table.Get("static").Boolean;
string memberType = table.Get("type").String;
string name = table.Get("name").String;
string decltype = table.Get("decltype").String;
bool declvtype = table.Get("declvtype").Boolean;
bool canWrite = table.Get("write").Boolean;
bool canRead = table.Get("read").Boolean;
if (declvtype && canWrite)
{
generator.Warning("Member '{0}.{1}::Set' will be a no-op, as it's a member of a value type.", decltype, name);
}
MemberDescriptorAccess access = 0;
if (canWrite)
{
access = access | MemberDescriptorAccess.CanWrite;
}
if (canRead)
{
access = access | MemberDescriptorAccess.CanRead;
}
string className = GetPrefix() + "_" + Guid.NewGuid().ToString("N");
CodeTypeDeclaration classCode = new CodeTypeDeclaration(className);
classCode.TypeAttributes = System.Reflection.TypeAttributes.NestedPrivate | System.Reflection.TypeAttributes.Sealed;
classCode.BaseTypes.Add(typeof(HardwiredMemberDescriptor));
// protected HardwiredMemberDescriptor(Type memberType, string name, bool isStatic, MemberDescriptorAccess access)
CodeConstructor ctor = new CodeConstructor();
ctor.Attributes = MemberAttributes.Assembly;
ctor.BaseConstructorArgs.Add(new CodeTypeOfExpression(memberType));
ctor.BaseConstructorArgs.Add(new CodePrimitiveExpression(name));
ctor.BaseConstructorArgs.Add(new CodePrimitiveExpression(isStatic));
ctor.BaseConstructorArgs.Add(new CodeCastExpression(typeof(MemberDescriptorAccess), new CodePrimitiveExpression((int)access)));
classCode.Members.Add(ctor);
var thisExp = isStatic
? (CodeExpression)(new CodeTypeReferenceExpression(decltype))
: (CodeExpression)(new CodeCastExpression(decltype, new CodeVariableReferenceExpression("obj")));
if (canRead)
{
var memberExp = GetMemberAccessExpression(thisExp, name);
// protected virtual object GetValueImpl(Script script, object obj)
CodeMemberMethod m = new CodeMemberMethod();
classCode.Members.Add(m);
m.Name = "GetValueImpl";
m.Attributes = MemberAttributes.Override | MemberAttributes.Family;
m.ReturnType = new CodeTypeReference(typeof(object));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(Script), "script"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "obj"));
m.Statements.Add(new CodeMethodReturnStatement(memberExp));
}
if (canWrite)
{
// protected virtual object GetValueImpl(Script script, object obj)
CodeMemberMethod m = new CodeMemberMethod();
classCode.Members.Add(m);
m.Name = "SetValueImpl";
m.Attributes = MemberAttributes.Override | MemberAttributes.Family;
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(Script), "script"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "obj"));
m.Parameters.Add(new CodeParameterDeclarationExpression(typeof(object), "value"));
var valExp = new CodeCastExpression(memberType, new CodeVariableReferenceExpression("value"));
if (isStatic)
{
var e = GetMemberAccessExpression(thisExp, name);
m.Statements.Add(new CodeAssignStatement(e, valExp));
}
else
{
m.Statements.Add(new CodeVariableDeclarationStatement(decltype, "tmp", thisExp));
var memberExp = GetMemberAccessExpression(new CodeVariableReferenceExpression("tmp"), name);
m.Statements.Add(new CodeAssignStatement(memberExp, valExp));
}
}
members.Add(classCode);
return(new CodeExpression[] { new CodeObjectCreateExpression(className) });
}
private void EmitInvalid(HardwireCodeGenerationContext generator, CodeStatementCollection coll, string message)
{
generator.Warning(message);
coll.Add(new CodeThrowExceptionStatement(new CodeObjectCreateExpression(typeof(InvalidOperationException),
new CodePrimitiveExpression(message))));
}