// *** partial implementation, will be fixed in proj2 ****
// MethodDecl ---
// Type t;
// Id mid;
// FormalList fl;
// VarDeclList vl;
// StmtList sl;
public IrFunc visit(AstMethodDecl n)
{
string label;
int varCnt = 0;
int tmpCnt = 0;
maxArgCnt = 0; // note this is a class variable
// Look up the corresponding MethodRec in the symbol table
currMethod = currClass.GetMethod(n.mid);
IrTemp.Reset();
IrStmtList stmts = n.vl.accept(this);
if (stmts == null)
stmts = n.sl.accept(this);
else
stmts.add(n.sl.accept(this));
// Create an unique label for the method by concatenating class name
// and method name together, with an underscore ( ) in between.
if (currMethod.Id().s.CompareTo("main") == 0)
label = "main";
else
label = symTable.UniqueMethodName(currClass, currMethod.Id());
varCnt = currMethod.LocalCnt();
tmpCnt = IrTemp.Count;
currMethod = null;
return new IrFunc(label, varCnt, tmpCnt, maxArgCnt, stmts);
}
public void Add(AstMethodDecl n)
{
base.Add(n);
}
// MethodDecl ---
// Type t;
// Id mid;
// FormalList fl;
// VarDeclList vl;
// StmtList sl;
public void visit(AstMethodDecl n)
{
currClass.AddMethod(n.mid, n.t);
currMethod = currClass.GetMethod(n.mid);
n.fl.accept(this);
n.vl.accept(this);
currMethod = null;
}
public void visit(AstMethodDecl n) {
// Set currMethod to the method table
currMethod = currClass.getMethod(n.mid);
hasReturn = false;
n.fl.accept(this);
n.vl.accept(this);
n.sl.accept(this);
// if method has a return value verify that method had a return statement
if (null != (n.t as AstObjType))
symTable.getClass(((AstObjType) n.t).cid);
if ((n.t != null) && !hasReturn)
throw new TypeException("Method " + n.mid.s + " is missing a Return statment");
currMethod = null;
}
/* throws Exception */
// MethodDecl ---
// Type t;
// Id mid;
// FormalList fl;
// VarDeclList vl;
// StmtList sl;
public void visit(AstMethodDecl n)
{
currMethod = currClass.GetMethod(n.mid);
hasReturn = false;
n.fl.accept(this);
n.vl.accept(this);
n.sl.accept(this);
// make sure return type is defined
if (null != (n.t as AstObjType))
symTable.GetClass(((AstObjType) n.t).cid);
if ((n.t != null) && !hasReturn)
throw new TypeException("Method " + n.mid.s + " is missing a Return statment");
currMethod = null;
}