public Function(string name, Type returnType, FuncParam[] parameters, Block body, MethodBuilder info)
{
Name = name;
ReturnType = returnType;
Params = parameters;
Body = body;
Info = info;
ILGenerator = info.GetILGenerator();
}
public FuncDeclaration(Terminal returnType, Id name, ParamDeclaration[] parameters, Block body)
{
ReturnType = returnType;
Params = parameters;
Body = body;
Name = name;
AddAttribute(new TypeAttr(returnType));
AddAttribute(new IdAttr(name));
AddAttribute(parameters);
AddChild(body);
}
private void CodeBlock(Block block, List<LocalVariable> locals, List<GlobalVariable> globals, FuncParam[] parameters, ILGenerator il,
Stack<Label> breaks, List<Function> allFuncs, LocalBuilder tmpVar)
{
foreach (var statement in block.Statements)
CodeStatement(statement, locals, globals, parameters, il, breaks, allFuncs, tmpVar);
}
private List<LocalVariable> DeclareAllLocalVariables(Block block, ILGenerator il)
{
var list = new List<LocalVariable>();
foreach (var varDeclaration in block.VarDeclarations)
{
var name = GetVariableName(varDeclaration);
var type = GetVarType(varDeclaration);
var info = il.DeclareLocal(type);
if (varDeclaration is ArrayDeclaration)
{
var array = varDeclaration as ArrayDeclaration;
il.Emit(OpCodes.Ldc_I4, array.Size.Value);
il.Emit(OpCodes.Newarr, type);
il.Emit(OpCodes.Stloc, info);
}
list.Add(new LocalVariable(name, info, type));
}
foreach (var s in block.Statements)
{
if (s is Block)
list.AddRange(DeclareAllLocalVariables(s as Block, il));
else if (s is IfStatement)
{
var f = s as IfStatement;
if (f.TrueStatement is Block)
list.AddRange(DeclareAllLocalVariables(f.TrueStatement as Block, il));
if (f.FalseStatement is Block)
list.AddRange(DeclareAllLocalVariables(f.FalseStatement as Block, il));
}
else if (s is WhileStatement)
{
var w = s as WhileStatement;
if (w.Statement is Block)
list.AddRange(DeclareAllLocalVariables(w.Statement as Block, il));
}
}
return list;
}