/// <summary>
/// Compile function declaration argument
/// </summary>
protected virtual void CompileFunctionArgumentDeclaration()
{
if (MatchToken(Token.Type.TypeName))
{
string typeName = previous.text;
TypeDef typedef = _assembly.GetTypeDef(typeName);
bool isArray = false;
int arraySize = 0;
if (MatchToken(Token.Type.ArrayIndexBegin))
{
isArray = true;
if (MatchToken(Token.Type.Numeric))
{
arraySize = Int32.Parse(previous.text);
}
Require(Token.Type.ClosingArrayIndex, "] Expected");
}
Token name = Require(Token.Type.Identifier, "identifier expected");
int refIndex = -1;
if (isArray)
{
object arr = Array.CreateInstance(typedef.type, arraySize);
refIndex = _cdata.AddMemoryObject(arr);
}
else
{
refIndex = _cdata.AddMemoryObject(typedef.DefaultConstructor()());
}
_cdata._scopeResolver.Add(name.text, refIndex);
}
}
/// <summary>
/// Compile a variable declaration
/// </summary>
/// <param name="allowFunction"></param>
/// <param name="requireEOS"></param>
/// <returns></returns>
protected virtual object CompileDeclaration(bool allowFunction = true, bool requireEOS = true)
{
if (MatchToken(Token.Type.EOS))
{
return(null);
}
if (MatchToken(Token.Type.TypeName))
{
string typeName = previous.text;
TypeDef typedef = _assembly.GetTypeDef(typeName);
bool isArray = false;
int arraySize = 0;
if (MatchToken(Token.Type.ArrayIndexBegin))
{
isArray = true;
if (MatchToken(Token.Type.Numeric))
{
arraySize = Int32.Parse(previous.text);
}
Require(Token.Type.ClosingArrayIndex, "] Expected");
}
if (Peek().type == Token.Type.Dot)
{
BackStep();
return(CompileFunctionCall());
}
if (typedef.staticClass)
{
throw new Exception("Cannot create an instance variable of a static class/struct");
}
Token name = Require(Token.Type.Identifier, "identifier expected");
if (allowFunction && Peek().type == Token.Type.OpenParenthesis)
{
return(CompileFunctionDeclaration(typedef, name.text, isArray));
}
int refIndex = -1;
if (isArray)
{
object arr = Array.CreateInstance(typedef.type, arraySize);
refIndex = _cdata.AddMemoryObject(arr);
}
else
{
refIndex = _cdata.AddMemoryObject(typedef.DefaultConstructor()());
}
_cdata._scopeResolver.Add(name.text, refIndex);
if (Peek().type == Token.Type.Assign)
{
BackStep();
object result = CompileAssignment();
Require(Token.Type.EOS, "; Expected");
return(result);
}
Require(Token.Type.EOS, "; Expected");
return(null);
}
return(CompileControlInstructionStatement());
}
