// use pure name, no dollar in front
// for identifiers which are references by dollar and symbol name,
// like "PLUS .... $PLUS" instead of setting up identifiers "plus:PLUS ..... plus"
public CodeBody AddPlaceholder(string s)
{
if (s.StartsWith(CodePiece.PlaceholderSigil))
throw new ArgumentException();
pieces.Add(CodePiece.Create(CodePiece.TypeEnum.Placeholder, s));
placeholders.Add(s);
return this;
}
public CodeBody AddIdentifier(string s)
{
if (s != null)
{
pieces.Add(CodePiece.Create(CodePiece.TypeEnum.Identifier, s));
identifiersPool.Add(s);
}
return this;
}
public CodeMacro(CodePiece controlName, bool isBoolean, CodeBody varBody, params CodeMix[] altCodes)
{
this.ControlName = controlName;
this.varBody = varBody ?? new CodeBody();
this.isBoolean = isBoolean;
this.altCodes = altCodes;
if (altCodes.Length != 1 && varBody != null)
{
throw new ArgumentException();
}
if (isBoolean && (altCodes.Length != 0 || varBody != null))
{
throw new ArgumentException();
}
}
public void ConvertPlaceholderToCode(string placeholder, CodeBody varName)
{
if (getControlPlaceholder() == placeholder)
{
if (varName.Pieces.Count() == 1)
{
ControlName = varName.Pieces.Single();
}
else
{
// the reason for this is we don't handle compound variable/expressions like "foo.field.bar"
// and the reason for the reason is, such compound expression can come only from standard placeholders
// like $pos or $coords, and it does not make sense to check them if they exist or if they are null or not
throw ParseControlException.NewAndRun("Placeholder \"" + placeholder + "\" cannot be used as control variable in macro.");
}
}
varBody.ConvertPlaceholderToCode(placeholder, varName);
foreach (CodeMix mix in altCodes)
{
mix.ConvertPlaceholderToCode(placeholder, varName);
}
}
private CodePiece(CodePiece src)
{
Type = src.Type;
Content = src.Content;
}
public CodeBody AddSnippet(string s)
{
pieces.Add(CodePiece.Create(CodePiece.TypeEnum.Snippet, s));
return this;
}