protected virtual IEnumerable <Syntax> TranslateTryCatchStatement(TryCatchStatement tryCatchStatement, ILTranslationContext data)
{
if (tryCatchStatement.CatchClauses.Count > 1)
{
throw new ArgumentException("Too many Catch clauses");
}
var s = new S.TryStatement();
s.TryBlock = GetStatements(tryCatchStatement.TryBlock, data);
if (tryCatchStatement.CatchClauses.Count == 1)
{
var cc = tryCatchStatement.CatchClauses.First();
s.CatchParameter = new E.IdentifierExpression {
Name = string.IsNullOrEmpty(cc.VariableName) ? "__ex" : cc.VariableName
};
s.CatchBlock = GetStatements(cc.Body, data);
}
s.FinallyBlock = GetStatements(tryCatchStatement.FinallyBlock, data);
yield return(s);
}
protected virtual IEnumerable <Syntax> TranslateUsingStatement(UsingStatement usingStatement, ILTranslationContext data)
{
var b = new S.BlockStatement();
var rvd = usingStatement.ResourceAcquisition as VariableDeclarationStatement;
var vds = new S.VariableDeclaration();
vds.Type = S.VariableDeclarationType.Let;
if (rvd != null)
{
foreach (var v in rvd.Variables)
{
vds.Bindings.Add(new S.VariableBinding()
{
Variable = new E.IdentifierExpression()
{
Name = v.Name
},
Type = ResolveType(v, rvd.Type),
Initializer = GetExpression(v.Initializer, data)
});
}
}
else
{
var ex = (ICSharpCode.NRefactory.CSharp.Expression)usingStatement.ResourceAcquisition;
vds.Bindings.Add(new S.VariableBinding()
{
Variable = new E.IdentifierExpression()
{
Name = "__usingResource"
},
Initializer = GetExpression(ex, data)
});
}
b.Statements.Add(vds);
var tf = new S.TryStatement();
tf.TryBlock = GetStatements(usingStatement.EmbeddedStatement, data);
foreach (var bd in vds.Bindings)
{
var ib = new S.IfStatement();
ib.Condition = bd.Variable;
ib.TruePart.Add(new S.ExpressionStatement()
{
Expression = new E.CallExpression()
{
Target = new E.PropertyExpression()
{
Object = bd.Variable,
Property = "Dispose"
}
}
});
tf.FinallyBlock.Add(ib);
}
b.Statements.Add(tf);
yield return(b);
}