public static int CallMethod(CatMethod method)
{
return(-1);
}
/// <summary>
/// Loads class internal fields to use them in program to create objects
/// </summary>
/// <param name="className"> Name of class to load</param>
/// <returns></returns>
public static (CatClass clazz, int index) LoadClassFile(string fileName)
{
var lines = File.ReadAllLines(BasePath + fileName);
var search = false;
var className = "";
(int i, int j)index = (0, 0);
for (var i = 0; i < lines.Length; i++)
{
var line = lines[i];
var words = line.Split();
for (var j = 0; j < words.Length; j++)
{
if (words[j] == "#")
{
j = words.Length;
continue;
}
//Console.WriteLine(words[j]);
if (!search)
{
if (words[j] == "class")
{
//Console.WriteLine("class found");
search = true;
}
}
else
{
className = words[j];
index = (i, j);
goto search;
}
}
}
search:
if (className != "")
{
var bracesNesting = 0;
var classProperties = new List <CatProperty>();
int modifiers = 0;
for (var i = index.i; i < lines.Length; i++)
{
var line = lines[i];
var firstTime = true;
var words = line.Split();
for (var j = index.j; j < words.Length; j++)
{
if (words[j] == "#")
{
continue;
}
if (words[j] == ";")
{
modifiers = 0;
}
if (words[j - 1] == ":") //Static method : methodName ( int a , string b ) ~ returnType
{
if (ModifierHandler.IsMethod(modifiers)) //Method
{
int k = j;
string signature = "";
while (k < words.Length && words[k] != ";")
{
signature += words[k] + " ";
k++;
}
signature = signature.Trim();
string link = fileName + ":" + i; //i-th line of file:className.cls
string[] sign = signature.Split('~');
var rawMethod = new CatMethod(sign[0].Trim(), sign[1].Trim(), className.Trim(), i)
{
Modifiers = modifiers
};
classProperties.Add(rawMethod);
j = k;
modifiers = 0;
continue;
}
if (ModifierHandler.IsConstructor(modifiers)) //Method
{
int k = j;
string signature = "";
while (k < words.Length && words[k] != ";")
{
signature += words[k] + " ";
k++;
}
signature = signature.Trim();
string link = fileName + ":" + i; //i-th line of file:className.cls
var rawMethod = new CatConstructor(signature, "", className.Trim(), i)
{
Modifiers = modifiers
};
classProperties.Add(rawMethod);
j = k;
modifiers = 0;
continue;
}
if (ModifierHandler.IsField(modifiers)) // field
{
var name = words[j];
var type = words[j + 2];
//words[i+3] == ":"
//words[i+4] == "="
//words[i+5] == "2"//value
var k = j + 4;
var expr = "";
while (k < words.Length && words[k] != ";")
{
expr += words[k] + " ";
k++;
}
if (expr == "")
{
expr = CatCore.V0;
}
var rawField = new CatField(name.Trim(), type.Trim(), null)
{
Modifiers = modifiers
}; //todo null
classProperties.Add(rawField);
j += 4;
modifiers = 0;
continue;
}
}
if (words[j] == "static")
{
modifiers += (int)Modifier.Static;
}
if (words[j] == "constructor")
{
modifiers += (int)Modifier.Constructor;
}
if (words[j] == "field")
{
modifiers += (int)Modifier.Field;
}
if (words[j] == "method")
{
modifiers += (int)Modifier.Method;
}
if (words[j] == "{")
{
bracesNesting++;
firstTime = false;
continue;
}
if (words[j] == "}")
{
bracesNesting--;
continue;
}
if (bracesNesting <= 0 && !firstTime)
{
goto after;
}
}
}
after: //All fields and methods are read
var clazz = new CatClass(className, classProperties.ToArray());
//var size = 5 + nonStaticFields.Count * 2 + staticFields.Count * 3 + nonStaticMethods.Count + staticMethods.Count * 2;
var ret = HeapHandler.LoadObjectToHeap(clazz);
CatCore.Types.Add(className, ret);
foreach (var prop in clazz.Properties)
{
if (prop is CatConstructor constr)
{
constr.ReturnType = ret;
}
}
return(clazz, ret);
}
return(null, CatCore.L0);
}
