public static CodegenMethod From(
CodegenMethodScope codegenMethodScope,
CodegenClassScope codegenClassScope,
Type expectedUnderlyingType,
EventPropertyGetterSPI innerGetter,
AccessType accessType,
Type generator)
{
var methodNode = codegenMethodScope.MakeChild(
accessType == AccessType.EXISTS ? typeof(bool) : typeof(object),
generator,
codegenClassScope)
.AddParam(typeof(object), "value");
var block = methodNode.Block
.IfInstanceOf("value", typeof(EventBean))
.DeclareVarWCast(typeof(EventBean), "bean", "value");
if (accessType == AccessType.GET)
{
block = block.BlockReturn(
innerGetter.EventBeanGetCodegen(Ref("bean"), codegenMethodScope, codegenClassScope));
}
else if (accessType == AccessType.EXISTS)
{
block = block.BlockReturn(
innerGetter.EventBeanExistsCodegen(Ref("bean"), codegenMethodScope, codegenClassScope));
}
else if (accessType == AccessType.FRAGMENT)
{
block = block.BlockReturn(
innerGetter.EventBeanFragmentCodegen(Ref("bean"), codegenMethodScope, codegenClassScope));
}
else
{
throw new UnsupportedOperationException("Invalid access type " + accessType);
}
block = block
.IfNotInstanceOf("value", expectedUnderlyingType)
.BlockReturn(
accessType == AccessType.EXISTS
? Constant(false)
: ConstantNull());
CodegenExpression expression;
if (accessType == AccessType.GET)
{
expression = innerGetter.UnderlyingGetCodegen(
Cast(expectedUnderlyingType, Ref("value")),
codegenMethodScope,
codegenClassScope);
}
else if (accessType == AccessType.EXISTS)
{
expression = innerGetter.UnderlyingExistsCodegen(
Cast(expectedUnderlyingType, Ref("value")),
codegenMethodScope,
codegenClassScope);
}
else if (accessType == AccessType.FRAGMENT)
{
expression = innerGetter.UnderlyingFragmentCodegen(
Cast(expectedUnderlyingType, Ref("value")),
codegenMethodScope,
codegenClassScope);
}
else
{
throw new UnsupportedOperationException("Invalid access type " + accessType);
}
block.MethodReturn(expression);
return(methodNode);
}