public static BlockStatement CreateNotImplementedBlock()
{
BlockStatement b = new BlockStatement();
b.Throw(new TypeReference("NotImplementedException").New());
return(b);
}
INode InitStaticVariable(string initFieldName, string variableName, Expression initializer, TypeDeclaration typeDeclaration)
{
const string helperMethodName = "InitStaticVariableHelper";
if (typeDeclaration != null)
{
if (!typeDeclaration.Children.OfType <MethodDeclaration>().Any(m => m.Name == helperMethodName))
{
// add helper method
var helperMethod = new MethodDeclaration {
Name = helperMethodName,
Modifier = Modifiers.Static,
TypeReference = new TypeReference("System.Boolean", true),
Parameters =
{
new ParameterDeclarationExpression(new TypeReference("Microsoft.VisualBasic.CompilerServices.StaticLocalInitFlag"), "flag")
},
Body = new BlockStatement()
};
BlockStatement trueBlock = new BlockStatement();
BlockStatement elseIfBlock = new BlockStatement();
BlockStatement falseBlock = new BlockStatement();
helperMethod.Body.AddStatement(
new IfElseStatement(ExpressionBuilder.Identifier("flag").Member("State").Operator(BinaryOperatorType.Equality, new PrimitiveExpression(0)))
{
TrueStatement = { trueBlock },
ElseIfSections =
{
new ElseIfSection(ExpressionBuilder.Identifier("flag").Member("State").Operator(BinaryOperatorType.Equality, new PrimitiveExpression(2)), elseIfBlock)
},
FalseStatement = { falseBlock }
});
trueBlock.Assign(ExpressionBuilder.Identifier("flag").Member("State"), new PrimitiveExpression(2));
trueBlock.Return(new PrimitiveExpression(true));
elseIfBlock.Throw(new TypeReference("Microsoft.VisualBasic.CompilerServices.IncompleteInitialization").New());
falseBlock.Return(new PrimitiveExpression(false));
typeDeclaration.AddChild(helperMethod);
}
}
BlockStatement tryBlock = new BlockStatement();
BlockStatement ifTrueBlock = new BlockStatement();
tryBlock.AddStatement(new IfElseStatement(ExpressionBuilder.Identifier(helperMethodName).Call(ExpressionBuilder.Identifier(initFieldName)), ifTrueBlock));
ifTrueBlock.Assign(ExpressionBuilder.Identifier(variableName), initializer);
BlockStatement finallyBlock = new BlockStatement();
finallyBlock.Assign(ExpressionBuilder.Identifier(initFieldName).Member("State"), new PrimitiveExpression(1));
BlockStatement lockBlock = new BlockStatement();
lockBlock.AddStatement(new TryCatchStatement(tryBlock, null, finallyBlock));
return(new LockStatement(ExpressionBuilder.Identifier(initFieldName), lockBlock));
}