public VariableDefinition Acquire(TypeReference type)
{
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <VariableDefinition>() != null);
if (temporaryVariables == null)
{
temporaryVariables = new List <TempVariable>();
}
for (int i = 0; i < temporaryVariables.Count; i++)
{
if (!temporaryVariables[i].isTaken)
{
var tempVariableType = temporaryVariables[i].variable.VariableType;
if (tempVariableType.FullName == type.FullName && tempVariableType.Scope == type.Scope)
{
var result = temporaryVariables[i].variable;
temporaryVariables[i] = new TempVariable(result, true);
return(result);
}
}
}
var variableName = "$Temp" + (temporaryVariables.Count + 1).ToString();
var variable = new VariableDefinition(variableName, type);
temporaryVariables.Add(new TempVariable(variable, true));
methodBody.Variables.Add(variable);
assembly.AddTypeUsage(type);
return(variable);
}
public void ReleaseAll()
{
if (temporaryVariables == null)
{
return;
}
for (int i = 0; i < temporaryVariables.Count; i++)
{
if (temporaryVariables[i].isTaken)
{
temporaryVariables[i] = new TempVariable(temporaryVariables[i].variable, false);
}
}
}
public void Release(VariableDefinition variable)
{
Contract.Requires(variable != null);
for (int i = 0; i < temporaryVariables.Count; i++)
{
if (temporaryVariables[i].variable == variable)
{
temporaryVariables[i] = new TempVariable(variable, false);
return;
}
}
ContractsHelper.AssertUnreachable("Invalid variable was passed to TemporaryVairables.Release().");
}
public override string Print(int depth)
{
return("for (" + TempVariable.Print(depth) + " in [" + Lower.Print(depth) + " .. " + Upper.Print(depth) + "])"
+ NewLine(depth + 1) + Body.Print(depth + 1));
}