/// <summary>
/// /// T Build(IServiceProvider sp);
/// </summary>
XamlIlEmitContext InitCodeGen(Func <string, IXamlIlType, IXamlIlTypeBuilder> createSubType,
IXamlIlEmitter codeGen, XamlIlContext context, bool needContextLocal)
{
IXamlIlLocal contextLocal = null;
if (needContextLocal)
{
contextLocal = codeGen.DefineLocal(context.ContextType);
codeGen
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Newobj, context.Constructor)
.Emit(OpCodes.Stloc, contextLocal);
}
var emitContext = new XamlIlEmitContext(codeGen, _configuration, context, contextLocal, createSubType, Emitters);
return(emitContext);
}
XamlIlEmitContext InitCodeGen(
IFileSource file,
Func <string, IXamlIlType, IXamlIlTypeBuilder> createSubType,
IXamlIlEmitter codeGen, XamlIlContext context, bool needContextLocal)
{
IXamlIlLocal contextLocal = null;
if (needContextLocal)
{
contextLocal = codeGen.DefineLocal(context.ContextType);
// Pass IService provider as the first argument to context factory
codeGen
.Emit(OpCodes.Ldarg_0);
context.Factory(codeGen);
codeGen.Emit(OpCodes.Stloc, contextLocal);
}
var emitContext = new XamlIlEmitContext(codeGen, _configuration, context, contextLocal, createSubType, file, Emitters);
return(emitContext);
}
/// <summary>
/// populate = true:
/// void Populate(IServiceProvider sp, T target);
/// populate = false
/// T Build(IServiceProvider sp);
/// </summary>
public void Compile(IXamlIlAstNode root, IXamlIlCodeGen codeGen, XamlIlContext context, bool populate)
{
var contextLocal = codeGen.Generator.DefineLocal(context.ContextType);
codeGen.Generator
.Emit(OpCodes.Ldarg_0)
.Emit(OpCodes.Newobj, context.Constructor)
.Emit(OpCodes.Stloc, contextLocal);
var rootGrp = (XamlIlValueWithManipulationNode)root;
var emitContext = new XamlIlEmitContext(_configuration, context, contextLocal, Emitters);
if (populate)
{
codeGen.Generator
.Emit(OpCodes.Ldloc, contextLocal)
.Emit(OpCodes.Ldarg_1)
.Emit(OpCodes.Stfld, context.RootObjectField)
.Emit(OpCodes.Ldarg_1);
emitContext.Emit(rootGrp.Manipulation, codeGen, null);
codeGen.Generator.Emit(OpCodes.Ret);
}
else
{
codeGen.Generator.Emit(OpCodes.Ldloc, contextLocal);
emitContext.Emit(rootGrp.Value, codeGen, rootGrp.Value.Type.GetClrType());
codeGen.Generator
.Emit(OpCodes.Stfld, context.RootObjectField);
codeGen.Generator
.Emit(OpCodes.Ldloc, contextLocal)
.Emit(OpCodes.Ldfld, context.RootObjectField)
.Emit(OpCodes.Dup);
emitContext.Emit(rootGrp.Manipulation, codeGen, null);
codeGen.Generator.Emit(OpCodes.Ret);
}
}
public PooledLocal(XamlIlEmitContext parent, IXamlIlType type, IXamlIlLocal local)
{
Local = local;
_parent = parent;
_type = type;
}
