/// <summary>
/// Retrieves a variable that can be used to store a shared instance of a regular
/// expression.
/// </summary>
/// <param name="generator"> The IL generator used to create the variable. </param>
/// <param name="literal"> The regular expression literal. </param>
/// <returns> A varaible that can be used to store a shared instance of a regular
/// expression. </returns>
public ILLocalVariable GetRegExpVariable(ILGenerator generator, RegularExpressionLiteral literal)
{
if (literal == null)
{
throw new ArgumentNullException(nameof(literal));
}
// Create a new Dictionary if it hasn't been created before.
if (this.regularExpressionVariables == null)
{
this.regularExpressionVariables = new Dictionary <RegularExpressionLiteral, ILLocalVariable>();
}
// Check if the literal already exists in the dictionary.
ILLocalVariable variable;
if (this.regularExpressionVariables.TryGetValue(literal, out variable) == false)
{
// The literal does not exist - add it.
variable = generator.DeclareVariable(typeof(Library.RegExpInstance));
this.regularExpressionVariables.Add(literal, variable);
}
return(variable);
}
/// <summary>
/// Retrieves a variable that can be used to store a shared instance of a regular
/// expression.
/// </summary>
/// <param name="generator"> The IL generator used to create the variable. </param>
/// <param name="literal"> The regular expression literal. </param>
/// <returns> A varaible that can be used to store a shared instance of a regular
/// expression. </returns>
public ILLocalVariable GetRegExpVariable(ILGenerator generator, RegularExpressionLiteral literal)
{
if (literal == null)
throw new ArgumentNullException("literal");
// Create a new Dictionary if it hasn't been created before.
if (this.regularExpressionVariables == null)
this.regularExpressionVariables = new Dictionary<RegularExpressionLiteral, ILLocalVariable>();
// Check if the literal already exists in the dictionary.
ILLocalVariable variable;
if (this.regularExpressionVariables.TryGetValue(literal, out variable) == false)
{
// The literal does not exist - add it.
variable = generator.DeclareVariable(typeof(Library.RegExpInstance));
this.regularExpressionVariables.Add(literal, variable);
}
return variable;
}