private bool IsTypeCorrect(VarRef varRef)
{
Type varRefType = varRef.EntryTypeReference.GetType();
if (varRefType == typeof(Ident))
{
if (Declarations.GetDeclarationByName(varRef.entry).GetType() != typeof(Variable))
{
return(false);
}
return(true);
}
else if (varRefType == typeof(BracesIdent))
{
return(true);
}
else if (varRefType == typeof(Placeholder))
{
return(true);
}
else
{
return(false);
}
}
private static bool ValidateUses(string param1, string param2)
{
VarRef varRef = new VarRef(param2);
if (varRef.IsGrammarCorrect())
{
ProcRef procRef = new ProcRef(param1);
StmtRef stmtRef = new StmtRef(param1);
return(procRef.IsGrammarCorrect() || stmtRef.IsGrammarCorrect());
}
return(false);
}
public MethodResultList NotImplemented()
{
ProcRef pr = new ProcRef("komarch");
pr.IsGrammarCorrect();
VarRef vr = new VarRef("_");
vr.IsGrammarCorrect();
MethodResultList mrl = new MethodResultList(typeof(ProcRef), typeof(VarRef));
mrl.List1.Add(pr);
mrl.List2.Add(vr);
mrl.ListType1 = typeof(Ident);
mrl.ListType2 = typeof(Placeholder);
mrl.QueryParam1 = "komarch";
mrl.QueryParam2 = "_";
return(mrl);
}
public MethodResultList Uses(StmtRef stmtRef, VarRef varRef)
{
Type stmtRefType = stmtRef.EntryTypeReference.GetType();
Type varRefType = varRef.EntryTypeReference.GetType();
MethodResultList usesReturn = new MethodResultList(stmtRef, varRef);
if (stmtRefType == typeof(Ident))
{
NodeType statementNodeType = ConvertStatementToPkbType(stmtRef.Type);
if (varRefType == typeof(Ident) || varRefType == typeof(Placeholder))
{
List <string> allVariables = Pkb.UsedVariables;
foreach (string v in allVariables)
{
List <int> statementNumbers = Pkb.UsesStmtThatModVar(v, statementNodeType);
foreach (int sn in statementNumbers)
{
usesReturn.List1.Add(new StmtRef("" + sn));
usesReturn.List2.Add(new VarRef(v));
}
}
}
else if (varRefType == typeof(BracesIdent))
{
string varNameWithoutBraces = varRef.entry.Substring(1, varRef.entry.Length - 2);
List <int> statementNumbers = Pkb.UsesStmtThatModVar(varNameWithoutBraces, statementNodeType);
foreach (int sn in statementNumbers)
{
usesReturn.List1.Add(new StmtRef("" + sn));
usesReturn.List2.Add(new VarRef(varNameWithoutBraces));
}
}
else
{
throw new SuchThatException($"#Invalid VarRef type: expected 'Ident', 'Placeholder' or 'BracesIdent' for {varRef.entry}");
}
}
else if (stmtRefType == typeof(IntegerRule))
{
if (varRefType == typeof(Ident) || varRefType == typeof(Placeholder))
{
List <string> variables = Pkb.UsesVarModInStmt(int.Parse(stmtRef.entry));
foreach (string v in variables)
{
usesReturn.List1.Add(new StmtRef(stmtRef.entry));
usesReturn.List2.Add(new VarRef(v));
}
}
else if (varRefType == typeof(BracesIdent))
{
List <string> variables = Pkb.UsesVarModInStmt(int.Parse(stmtRef.entry));
string varNameWithoutBraces = varRef.entry.Substring(1, varRef.entry.Length - 2);
foreach (string v in variables)
{
if (varNameWithoutBraces == v)
{
usesReturn.List1.Add(new StmtRef(stmtRef.entry));
usesReturn.List2.Add(new VarRef(v));
}
}
}
else
{
throw new SuchThatException($"#Invalid VarRef type: expected 'Ident', 'Placeholder' or 'BracesIdent' for {varRef.entry}");
}
}
else if (stmtRefType == typeof(Placeholder))
{
throw new SuchThatException($"#Invalid StmtRef type: expected 'Ident' or 'Integer' for {stmtRef.entry}");
}
else
{
throw new SuchThatException($"#Invalid StmtRef type: expected 'Ident' or 'BracesIdent' for {stmtRef.entry}");
}
return(usesReturn);
}
public MethodResultList Uses(ProcRef procRef, VarRef varRef)
{
Type procRefType = procRef.EntryTypeReference.GetType();
Type varRefType = varRef.EntryTypeReference.GetType();
MethodResultList usesReturn = new MethodResultList(procRef, varRef);
List <string> allProcedures = Pkb.UsedProcedures;
if (procRefType == typeof(Ident))
{
if (varRefType == typeof(Ident) || varRefType == typeof(Placeholder))
{
foreach (string ptc in allProcedures)
{
List <string> variables = Pkb.UsesAllProcModVar(ptc);
foreach (string v in variables)
{
usesReturn.List1.Add(new ProcRef(ptc));
usesReturn.List2.Add(new VarRef(v));
}
}
}
else if (varRefType == typeof(BracesIdent))
{
string varNameWithoutBraces = varRef.entry.Substring(1, varRef.entry.Length - 2);
List <string> procedures = Pkb.UsesAllVarModProc(varNameWithoutBraces);
foreach (string p in procedures)
{
usesReturn.List1.Add(new ProcRef(p));
usesReturn.List2.Add(new VarRef(varNameWithoutBraces));
}
}
else
{
throw new SuchThatException($"#Invalid VarRef type: expected 'Ident', 'Placeholder' or 'BracesIdent' for {varRef.entry}");
}
}
else if (procRefType == typeof(BracesIdent))
{
if (varRefType == typeof(Ident) || varRefType == typeof(Placeholder))
{
string procNameWithoutBraces = procRef.entry.Substring(1, procRef.entry.Length - 2);
List <string> variables = Pkb.UsesAllProcModVar(procNameWithoutBraces);
foreach (string v in variables)
{
usesReturn.List1.Add(new ProcRef(procNameWithoutBraces));
usesReturn.List2.Add(new VarRef(v));
}
}
else if (varRefType == typeof(BracesIdent))
{
string procNameWithoutBraces = procRef.entry.Substring(1, procRef.entry.Length - 2);
string varNameWithoutBraces = varRef.entry.Substring(1, varRef.entry.Length - 2);
if (Pkb.UsesProcedure(procNameWithoutBraces, varNameWithoutBraces))
{
usesReturn.List1.Add(new ProcRef(procNameWithoutBraces));
usesReturn.List2.Add(new VarRef(varNameWithoutBraces));
}
}
else
{
throw new SuchThatException($"#Invalid VarRef type: expected 'Ident', 'Placeholder' or 'BracesIdent' for {varRef.entry}");
}
}
else if (procRefType == typeof(Placeholder))
{
throw new SuchThatException($"#Invalid ProcRef type: expected 'Ident' or 'BracesIdent' for {procRef.entry}");
}
else
{
throw new SuchThatException($"#Invalid ProcRef type: expected 'Ident' or 'BracesIdent' for {procRef.entry}");
}
return(usesReturn);
}
/// <summary>
/// Executes correct method
/// </summary>
/// <param name="methodName">method which should be executed</param>
/// <param name="param1">first param from query</param>
/// <param name="param2">second param from query</param>
/// <returns></returns>
/// <returns></returns>
public MethodResultList DoSuchThatMethod(string methodName, string param1, string param2)
{
switch (methodName)
{
case "MODIFIES":
{
//helper objects needed to check the type, param1 can be either PROCEDURE or STATEMENT
VarRef varRef = new VarRef(param2);
varRef.IsGrammarCorrect();
ProcRef procRef = new ProcRef(param1);
procRef.IsGrammarCorrect();
StmtRef stmtRef = new StmtRef(param1);
stmtRef.IsGrammarCorrect();
//present on DeclarationsArray and has required type
if (!IsTypeCorrect(varRef))
{
throw new SuchThatException($"#{varRef.entry} isn't declared as VARIABLE type");
}
if (IsTypeCorrect(procRef))
{
return(Modifies(procRef, varRef));
}
else
if (IsTypeCorrect(stmtRef))
{
return(Modifies(stmtRef, varRef));
}
else
{
throw new SuchThatException($"#{methodName} first param is neither 'PROCEDURE' or 'STATEMENT'");
}
}
case "USES":
{
//helper objects needed to check the type, param1 can be either PROCEDURE or STATEMENT
VarRef varRef = new VarRef(param2);
varRef.IsGrammarCorrect();
ProcRef procRef = new ProcRef(param1);
procRef.IsGrammarCorrect();
StmtRef stmtRef = new StmtRef(param1);
stmtRef.IsGrammarCorrect();
//present on DeclarationsArray and has required type
if (!IsTypeCorrect(varRef))
{
throw new SuchThatException($"#{varRef.entry} isn't declared as VARIABLE type");
}
bool stmtFlag = IsTypeCorrect(stmtRef);
bool procFlag = IsTypeCorrect(procRef);
if (procFlag)
{
return(Uses(procRef, varRef));
}
else
if (stmtFlag)
{
return(Uses(stmtRef, varRef));
}
else
{
throw new SuchThatException($"#{methodName} first param is neither 'PROCEDURE' or 'STATEMENT'");
}
}
case "CALLS":
{
ProcRef procRef1 = new ProcRef(param1);
procRef1.IsGrammarCorrect();
ProcRef procRef2 = new ProcRef(param2);
procRef2.IsGrammarCorrect();
if (IsTypeCorrect(procRef1) && IsTypeCorrect(procRef2))
{
return(Calls(procRef1, procRef2));
}
else
{
throw new SuchThatException($"#{methodName} first or second param isn't 'PROCEDURE'");
}
}
//case "CALLS*":
// {
// ProcRef procRef1 = new ProcRef(param1);
// procRef1.IsGrammarCorrect();
// ProcRef procRef2 = new ProcRef(param2);
// procRef2.IsGrammarCorrect();
// if (IsTypeCorrect(procRef1) && IsTypeCorrect(procRef2))
// return CallsAsterisk(procRef1, procRef2);
// else
// throw new SuchThatException($"#{methodName} first or second param isn't 'PROCEDURE'");
// }
case "PARENT":
{
StmtRef stmtRef1 = new StmtRef(param1);
stmtRef1.IsGrammarCorrect();
StmtRef stmtRef2 = new StmtRef(param2);
stmtRef2.IsGrammarCorrect();
if (IsTypeCorrect(stmtRef1) && IsTypeCorrect(stmtRef2))
{
return(Parent(stmtRef1, stmtRef2));
}
else
{
throw new SuchThatException($"#{methodName} first or second param isn't 'STATEMENT'");
}
}
case "PARENT*":
{
StmtRef stmtRef1 = new StmtRef(param1);
stmtRef1.IsGrammarCorrect();
StmtRef stmtRef2 = new StmtRef(param2);
stmtRef2.IsGrammarCorrect();
if (IsTypeCorrect(stmtRef1) && IsTypeCorrect(stmtRef2))
{
return(ParentAsterisk(stmtRef1, stmtRef2));
}
else
{
throw new SuchThatException($"#{methodName} first or second param isn't 'STATEMENT'");
}
}
case "FOLLOWS":
{
StmtRef stmtRef1 = new StmtRef(param1);
stmtRef1.IsGrammarCorrect();
StmtRef stmtRef2 = new StmtRef(param2);
stmtRef2.IsGrammarCorrect();
if (IsTypeCorrect(stmtRef1) && IsTypeCorrect(stmtRef2))
{
return(Follows(stmtRef1, stmtRef2));
}
else
{
throw new SuchThatException($"#{methodName} first or second param isn't 'STATEMENT'");
}
}
case "FOLLOWS*":
{
StmtRef stmtRef1 = new StmtRef(param1);
stmtRef1.IsGrammarCorrect();
StmtRef stmtRef2 = new StmtRef(param2);
stmtRef2.IsGrammarCorrect();
if (IsTypeCorrect(stmtRef1) && IsTypeCorrect(stmtRef2))
{
return(FollowsAsterisk(stmtRef1, stmtRef2));
}
else
{
throw new SuchThatException($"#{methodName} first or second param isn't 'STATEMENT'");
}
}
case "NEXT":
return(NotImplemented());
case "NEXT*":
return(NotImplemented());
case "AFFECTS":
return(NotImplemented());
case "AFFECTS*":
return(NotImplemented());
default:
throw new NotImplementedException($"#Invalid methodName for Such That. Got: {methodName}");
}
}