[llvm] r264426 - [Kaleidoscope] Fix 'Error' name clashes.

Lang Hames via llvm-commits llvm-commits at lists.llvm.org
Fri Mar 25 10:33:32 PDT 2016


Author: lhames
Date: Fri Mar 25 12:33:32 2016
New Revision: 264426

URL: http://llvm.org/viewvc/llvm-project?rev=264426&view=rev
Log:
[Kaleidoscope] Fix 'Error' name clashes.

Modified:
    llvm/trunk/docs/tutorial/LangImpl6.rst
    llvm/trunk/docs/tutorial/LangImpl7.rst
    llvm/trunk/examples/Kaleidoscope/Chapter6/toy.cpp
    llvm/trunk/examples/Kaleidoscope/Chapter7/toy.cpp
    llvm/trunk/examples/Kaleidoscope/Chapter8/toy.cpp

Modified: llvm/trunk/docs/tutorial/LangImpl6.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/tutorial/LangImpl6.rst?rev=264426&r1=264425&r2=264426&view=diff
==============================================================================
--- llvm/trunk/docs/tutorial/LangImpl6.rst (original)
+++ llvm/trunk/docs/tutorial/LangImpl6.rst Fri Mar 25 12:33:32 2016
@@ -176,7 +176,7 @@ user-defined operator, we need to parse
 
       switch (CurTok) {
       default:
-        return ErrorP("Expected function name in prototype");
+        return LogErrorP("Expected function name in prototype");
       case tok_identifier:
         FnName = IdentifierStr;
         Kind = 0;
@@ -185,7 +185,7 @@ user-defined operator, we need to parse
       case tok_binary:
         getNextToken();
         if (!isascii(CurTok))
-          return ErrorP("Expected binary operator");
+          return LogErrorP("Expected binary operator");
         FnName = "binary";
         FnName += (char)CurTok;
         Kind = 2;
@@ -194,7 +194,7 @@ user-defined operator, we need to parse
         // Read the precedence if present.
         if (CurTok == tok_number) {
           if (NumVal < 1 || NumVal > 100)
-            return ErrorP("Invalid precedecnce: must be 1..100");
+            return LogErrorP("Invalid precedecnce: must be 1..100");
           BinaryPrecedence = (unsigned)NumVal;
           getNextToken();
         }
@@ -202,20 +202,20 @@ user-defined operator, we need to parse
       }
 
       if (CurTok != '(')
-        return ErrorP("Expected '(' in prototype");
+        return LogErrorP("Expected '(' in prototype");
 
       std::vector<std::string> ArgNames;
       while (getNextToken() == tok_identifier)
         ArgNames.push_back(IdentifierStr);
       if (CurTok != ')')
-        return ErrorP("Expected ')' in prototype");
+        return LogErrorP("Expected ')' in prototype");
 
       // success.
       getNextToken();  // eat ')'.
 
       // Verify right number of names for operator.
       if (Kind && ArgNames.size() != Kind)
-        return ErrorP("Invalid number of operands for operator");
+        return LogErrorP("Invalid number of operands for operator");
 
       return llvm::make_unique<PrototypeAST>(FnName, std::move(ArgNames), Kind != 0,
                                              BinaryPrecedence);
@@ -403,7 +403,7 @@ operator code above with:
 
       switch (CurTok) {
       default:
-        return ErrorP("Expected function name in prototype");
+        return LogErrorP("Expected function name in prototype");
       case tok_identifier:
         FnName = IdentifierStr;
         Kind = 0;
@@ -412,7 +412,7 @@ operator code above with:
       case tok_unary:
         getNextToken();
         if (!isascii(CurTok))
-          return ErrorP("Expected unary operator");
+          return LogErrorP("Expected unary operator");
         FnName = "unary";
         FnName += (char)CurTok;
         Kind = 1;
@@ -435,7 +435,7 @@ unary operators. It looks like this:
 
       Function *F = TheModule->getFunction(std::string("unary")+Opcode);
       if (!F)
-        return ErrorV("Unknown unary operator");
+        return LogErrorV("Unknown unary operator");
 
       return Builder.CreateCall(F, OperandV, "unop");
     }

Modified: llvm/trunk/docs/tutorial/LangImpl7.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/docs/tutorial/LangImpl7.rst?rev=264426&r1=264425&r2=264426&view=diff
==============================================================================
--- llvm/trunk/docs/tutorial/LangImpl7.rst (original)
+++ llvm/trunk/docs/tutorial/LangImpl7.rst Fri Mar 25 12:33:32 2016
@@ -359,7 +359,7 @@ from the stack slot:
       // Look this variable up in the function.
       Value *V = NamedValues[Name];
       if (!V)
-        return ErrorV("Unknown variable name");
+        return LogErrorV("Unknown variable name");
 
       // Load the value.
       return Builder.CreateLoad(V, Name.c_str());
@@ -578,7 +578,7 @@ implement codegen for the assignment ope
         // Assignment requires the LHS to be an identifier.
         VariableExprAST *LHSE = dynamic_cast<VariableExprAST*>(LHS.get());
         if (!LHSE)
-          return ErrorV("destination of '=' must be a variable");
+          return LogErrorV("destination of '=' must be a variable");
 
 Unlike the rest of the binary operators, our assignment operator doesn't
 follow the "emit LHS, emit RHS, do computation" model. As such, it is
@@ -597,7 +597,7 @@ allowed.
         // Look up the name.
         Value *Variable = NamedValues[LHSE->getName()];
         if (!Variable)
-          return ErrorV("Unknown variable name");
+          return LogErrorV("Unknown variable name");
 
         Builder.CreateStore(Val, Variable);
         return Val;
@@ -703,7 +703,7 @@ do is add it as a primary expression:
     static std::unique_ptr<ExprAST> ParsePrimary() {
       switch (CurTok) {
       default:
-        return Error("unknown token when expecting an expression");
+        return LogError("unknown token when expecting an expression");
       case tok_identifier:
         return ParseIdentifierExpr();
       case tok_number:
@@ -732,7 +732,7 @@ Next we define ParseVarExpr:
 
       // At least one variable name is required.
       if (CurTok != tok_identifier)
-        return Error("expected identifier after var");
+        return LogError("expected identifier after var");
 
 The first part of this code parses the list of identifier/expr pairs
 into the local ``VarNames`` vector.
@@ -759,7 +759,7 @@ into the local ``VarNames`` vector.
         getNextToken(); // eat the ','.
 
         if (CurTok != tok_identifier)
-          return Error("expected identifier list after var");
+          return LogError("expected identifier list after var");
       }
 
 Once all the variables are parsed, we then parse the body and create the
@@ -769,7 +769,7 @@ AST node:
 
       // At this point, we have to have 'in'.
       if (CurTok != tok_in)
-        return Error("expected 'in' keyword after 'var'");
+        return LogError("expected 'in' keyword after 'var'");
       getNextToken();  // eat 'in'.
 
       auto Body = ParseExpression();

Modified: llvm/trunk/examples/Kaleidoscope/Chapter6/toy.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/examples/Kaleidoscope/Chapter6/toy.cpp?rev=264426&r1=264425&r2=264426&view=diff
==============================================================================
--- llvm/trunk/examples/Kaleidoscope/Chapter6/toy.cpp (original)
+++ llvm/trunk/examples/Kaleidoscope/Chapter6/toy.cpp Fri Mar 25 12:33:32 2016
@@ -272,13 +272,13 @@ static int GetTokPrecedence() {
 }
 
 /// Error* - These are little helper functions for error handling.
-std::unique_ptr<ExprAST> Error(const char *Str) {
+std::unique_ptr<ExprAST> LogError(const char *Str) {
   fprintf(stderr, "Error: %s\n", Str);
   return nullptr;
 }
 
-std::unique_ptr<PrototypeAST> ErrorP(const char *Str) {
-  Error(Str);
+std::unique_ptr<PrototypeAST> LogErrorP(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -299,7 +299,7 @@ static std::unique_ptr<ExprAST> ParsePar
     return nullptr;
 
   if (CurTok != ')')
-    return Error("expected ')'");
+    return LogError("expected ')'");
   getNextToken(); // eat ).
   return V;
 }
@@ -329,7 +329,7 @@ static std::unique_ptr<ExprAST> ParseIde
         break;
 
       if (CurTok != ',')
-        return Error("Expected ')' or ',' in argument list");
+        return LogError("Expected ')' or ',' in argument list");
       getNextToken();
     }
   }
@@ -350,7 +350,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_then)
-    return Error("expected then");
+    return LogError("expected then");
   getNextToken(); // eat the then
 
   auto Then = ParseExpression();
@@ -358,7 +358,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_else)
-    return Error("expected else");
+    return LogError("expected else");
 
   getNextToken();
 
@@ -375,20 +375,20 @@ static std::unique_ptr<ExprAST> ParseFor
   getNextToken(); // eat the for.
 
   if (CurTok != tok_identifier)
-    return Error("expected identifier after for");
+    return LogError("expected identifier after for");
 
   std::string IdName = IdentifierStr;
   getNextToken(); // eat identifier.
 
   if (CurTok != '=')
-    return Error("expected '=' after for");
+    return LogError("expected '=' after for");
   getNextToken(); // eat '='.
 
   auto Start = ParseExpression();
   if (!Start)
     return nullptr;
   if (CurTok != ',')
-    return Error("expected ',' after for start value");
+    return LogError("expected ',' after for start value");
   getNextToken();
 
   auto End = ParseExpression();
@@ -405,7 +405,7 @@ static std::unique_ptr<ExprAST> ParseFor
   }
 
   if (CurTok != tok_in)
-    return Error("expected 'in' after for");
+    return LogError("expected 'in' after for");
   getNextToken(); // eat 'in'.
 
   auto Body = ParseExpression();
@@ -425,7 +425,7 @@ static std::unique_ptr<ExprAST> ParseFor
 static std::unique_ptr<ExprAST> ParsePrimary() {
   switch (CurTok) {
   default:
-    return Error("unknown token when expecting an expression");
+    return LogError("unknown token when expecting an expression");
   case tok_identifier:
     return ParseIdentifierExpr();
   case tok_number:
@@ -515,7 +515,7 @@ static std::unique_ptr<PrototypeAST> Par
 
   switch (CurTok) {
   default:
-    return ErrorP("Expected function name in prototype");
+    return LogErrorP("Expected function name in prototype");
   case tok_identifier:
     FnName = IdentifierStr;
     Kind = 0;
@@ -524,7 +524,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_unary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected unary operator");
+      return LogErrorP("Expected unary operator");
     FnName = "unary";
     FnName += (char)CurTok;
     Kind = 1;
@@ -533,7 +533,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_binary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected binary operator");
+      return LogErrorP("Expected binary operator");
     FnName = "binary";
     FnName += (char)CurTok;
     Kind = 2;
@@ -542,7 +542,7 @@ static std::unique_ptr<PrototypeAST> Par
     // Read the precedence if present.
     if (CurTok == tok_number) {
       if (NumVal < 1 || NumVal > 100)
-        return ErrorP("Invalid precedecnce: must be 1..100");
+        return LogErrorP("Invalid precedecnce: must be 1..100");
       BinaryPrecedence = (unsigned)NumVal;
       getNextToken();
     }
@@ -550,20 +550,20 @@ static std::unique_ptr<PrototypeAST> Par
   }
 
   if (CurTok != '(')
-    return ErrorP("Expected '(' in prototype");
+    return LogErrorP("Expected '(' in prototype");
 
   std::vector<std::string> ArgNames;
   while (getNextToken() == tok_identifier)
     ArgNames.push_back(IdentifierStr);
   if (CurTok != ')')
-    return ErrorP("Expected ')' in prototype");
+    return LogErrorP("Expected ')' in prototype");
 
   // success.
   getNextToken(); // eat ')'.
 
   // Verify right number of names for operator.
   if (Kind && ArgNames.size() != Kind)
-    return ErrorP("Invalid number of operands for operator");
+    return LogErrorP("Invalid number of operands for operator");
 
   return llvm::make_unique<PrototypeAST>(FnName, ArgNames, Kind != 0,
                                          BinaryPrecedence);
@@ -609,8 +609,8 @@ static std::unique_ptr<legacy::FunctionP
 static std::unique_ptr<KaleidoscopeJIT> TheJIT;
 static std::map<std::string, std::unique_ptr<PrototypeAST>> FunctionProtos;
 
-Value *ErrorV(const char *Str) {
-  Error(Str);
+Value *LogErrorV(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -637,7 +637,7 @@ Value *VariableExprAST::codegen() {
   // Look this variable up in the function.
   Value *V = NamedValues[Name];
   if (!V)
-    return ErrorV("Unknown variable name");
+    return LogErrorV("Unknown variable name");
   return V;
 }
 
@@ -648,7 +648,7 @@ Value *UnaryExprAST::codegen() {
 
   Function *F = getFunction(std::string("unary") + Opcode);
   if (!F)
-    return ErrorV("Unknown unary operator");
+    return LogErrorV("Unknown unary operator");
 
   return Builder.CreateCall(F, OperandV, "unop");
 }
@@ -688,11 +688,11 @@ Value *CallExprAST::codegen() {
   // Look up the name in the global module table.
   Function *CalleeF = getFunction(Callee);
   if (!CalleeF)
-    return ErrorV("Unknown function referenced");
+    return LogErrorV("Unknown function referenced");
 
   // If argument mismatch error.
   if (CalleeF->arg_size() != Args.size())
-    return ErrorV("Incorrect # arguments passed");
+    return LogErrorV("Incorrect # arguments passed");
 
   std::vector<Value *> ArgsV;
   for (unsigned i = 0, e = Args.size(); i != e; ++i) {

Modified: llvm/trunk/examples/Kaleidoscope/Chapter7/toy.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/examples/Kaleidoscope/Chapter7/toy.cpp?rev=264426&r1=264425&r2=264426&view=diff
==============================================================================
--- llvm/trunk/examples/Kaleidoscope/Chapter7/toy.cpp (original)
+++ llvm/trunk/examples/Kaleidoscope/Chapter7/toy.cpp Fri Mar 25 12:33:32 2016
@@ -290,14 +290,14 @@ static int GetTokPrecedence() {
   return TokPrec;
 }
 
-/// Error* - These are little helper functions for error handling.
-std::unique_ptr<ExprAST> Error(const char *Str) {
+/// LogError* - These are little helper functions for error handling.
+std::unique_ptr<ExprAST> LogError(const char *Str) {
   fprintf(stderr, "Error: %s\n", Str);
   return nullptr;
 }
 
-std::unique_ptr<PrototypeAST> ErrorP(const char *Str) {
-  Error(Str);
+std::unique_ptr<PrototypeAST> LogErrorP(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -318,7 +318,7 @@ static std::unique_ptr<ExprAST> ParsePar
     return nullptr;
 
   if (CurTok != ')')
-    return Error("expected ')'");
+    return LogError("expected ')'");
   getNextToken(); // eat ).
   return V;
 }
@@ -348,7 +348,7 @@ static std::unique_ptr<ExprAST> ParseIde
         break;
 
       if (CurTok != ',')
-        return Error("Expected ')' or ',' in argument list");
+        return LogError("Expected ')' or ',' in argument list");
       getNextToken();
     }
   }
@@ -369,7 +369,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_then)
-    return Error("expected then");
+    return LogError("expected then");
   getNextToken(); // eat the then
 
   auto Then = ParseExpression();
@@ -377,7 +377,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_else)
-    return Error("expected else");
+    return LogError("expected else");
 
   getNextToken();
 
@@ -394,20 +394,20 @@ static std::unique_ptr<ExprAST> ParseFor
   getNextToken(); // eat the for.
 
   if (CurTok != tok_identifier)
-    return Error("expected identifier after for");
+    return LogError("expected identifier after for");
 
   std::string IdName = IdentifierStr;
   getNextToken(); // eat identifier.
 
   if (CurTok != '=')
-    return Error("expected '=' after for");
+    return LogError("expected '=' after for");
   getNextToken(); // eat '='.
 
   auto Start = ParseExpression();
   if (!Start)
     return nullptr;
   if (CurTok != ',')
-    return Error("expected ',' after for start value");
+    return LogError("expected ',' after for start value");
   getNextToken();
 
   auto End = ParseExpression();
@@ -424,7 +424,7 @@ static std::unique_ptr<ExprAST> ParseFor
   }
 
   if (CurTok != tok_in)
-    return Error("expected 'in' after for");
+    return LogError("expected 'in' after for");
   getNextToken(); // eat 'in'.
 
   auto Body = ParseExpression();
@@ -444,7 +444,7 @@ static std::unique_ptr<ExprAST> ParseVar
 
   // At least one variable name is required.
   if (CurTok != tok_identifier)
-    return Error("expected identifier after var");
+    return LogError("expected identifier after var");
 
   while (1) {
     std::string Name = IdentifierStr;
@@ -468,12 +468,12 @@ static std::unique_ptr<ExprAST> ParseVar
     getNextToken(); // eat the ','.
 
     if (CurTok != tok_identifier)
-      return Error("expected identifier list after var");
+      return LogError("expected identifier list after var");
   }
 
   // At this point, we have to have 'in'.
   if (CurTok != tok_in)
-    return Error("expected 'in' keyword after 'var'");
+    return LogError("expected 'in' keyword after 'var'");
   getNextToken(); // eat 'in'.
 
   auto Body = ParseExpression();
@@ -493,7 +493,7 @@ static std::unique_ptr<ExprAST> ParseVar
 static std::unique_ptr<ExprAST> ParsePrimary() {
   switch (CurTok) {
   default:
-    return Error("unknown token when expecting an expression");
+    return LogError("unknown token when expecting an expression");
   case tok_identifier:
     return ParseIdentifierExpr();
   case tok_number:
@@ -585,7 +585,7 @@ static std::unique_ptr<PrototypeAST> Par
 
   switch (CurTok) {
   default:
-    return ErrorP("Expected function name in prototype");
+    return LogErrorP("Expected function name in prototype");
   case tok_identifier:
     FnName = IdentifierStr;
     Kind = 0;
@@ -594,7 +594,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_unary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected unary operator");
+      return LogErrorP("Expected unary operator");
     FnName = "unary";
     FnName += (char)CurTok;
     Kind = 1;
@@ -603,7 +603,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_binary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected binary operator");
+      return LogErrorP("Expected binary operator");
     FnName = "binary";
     FnName += (char)CurTok;
     Kind = 2;
@@ -612,7 +612,7 @@ static std::unique_ptr<PrototypeAST> Par
     // Read the precedence if present.
     if (CurTok == tok_number) {
       if (NumVal < 1 || NumVal > 100)
-        return ErrorP("Invalid precedecnce: must be 1..100");
+        return LogErrorP("Invalid precedecnce: must be 1..100");
       BinaryPrecedence = (unsigned)NumVal;
       getNextToken();
     }
@@ -620,20 +620,20 @@ static std::unique_ptr<PrototypeAST> Par
   }
 
   if (CurTok != '(')
-    return ErrorP("Expected '(' in prototype");
+    return LogErrorP("Expected '(' in prototype");
 
   std::vector<std::string> ArgNames;
   while (getNextToken() == tok_identifier)
     ArgNames.push_back(IdentifierStr);
   if (CurTok != ')')
-    return ErrorP("Expected ')' in prototype");
+    return LogErrorP("Expected ')' in prototype");
 
   // success.
   getNextToken(); // eat ')'.
 
   // Verify right number of names for operator.
   if (Kind && ArgNames.size() != Kind)
-    return ErrorP("Invalid number of operands for operator");
+    return LogErrorP("Invalid number of operands for operator");
 
   return llvm::make_unique<PrototypeAST>(FnName, ArgNames, Kind != 0,
                                          BinaryPrecedence);
@@ -679,8 +679,8 @@ static std::unique_ptr<legacy::FunctionP
 static std::unique_ptr<KaleidoscopeJIT> TheJIT;
 static std::map<std::string, std::unique_ptr<PrototypeAST>> FunctionProtos;
 
-Value *ErrorV(const char *Str) {
-  Error(Str);
+Value *LogErrorV(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -717,7 +717,7 @@ Value *VariableExprAST::codegen() {
   // Look this variable up in the function.
   Value *V = NamedValues[Name];
   if (!V)
-    return ErrorV("Unknown variable name");
+    return LogErrorV("Unknown variable name");
 
   // Load the value.
   return Builder.CreateLoad(V, Name.c_str());
@@ -730,7 +730,7 @@ Value *UnaryExprAST::codegen() {
 
   Function *F = getFunction(std::string("unary") + Opcode);
   if (!F)
-    return ErrorV("Unknown unary operator");
+    return LogErrorV("Unknown unary operator");
 
   return Builder.CreateCall(F, OperandV, "unop");
 }
@@ -744,7 +744,7 @@ Value *BinaryExprAST::codegen() {
     // dynamic_cast for automatic error checking.
     VariableExprAST *LHSE = static_cast<VariableExprAST *>(LHS.get());
     if (!LHSE)
-      return ErrorV("destination of '=' must be a variable");
+      return LogErrorV("destination of '=' must be a variable");
     // Codegen the RHS.
     Value *Val = RHS->codegen();
     if (!Val)
@@ -753,7 +753,7 @@ Value *BinaryExprAST::codegen() {
     // Look up the name.
     Value *Variable = NamedValues[LHSE->getName()];
     if (!Variable)
-      return ErrorV("Unknown variable name");
+      return LogErrorV("Unknown variable name");
 
     Builder.CreateStore(Val, Variable);
     return Val;
@@ -793,11 +793,11 @@ Value *CallExprAST::codegen() {
   // Look up the name in the global module table.
   Function *CalleeF = getFunction(Callee);
   if (!CalleeF)
-    return ErrorV("Unknown function referenced");
+    return LogErrorV("Unknown function referenced");
 
   // If argument mismatch error.
   if (CalleeF->arg_size() != Args.size())
-    return ErrorV("Incorrect # arguments passed");
+    return LogErrorV("Incorrect # arguments passed");
 
   std::vector<Value *> ArgsV;
   for (unsigned i = 0, e = Args.size(); i != e; ++i) {

Modified: llvm/trunk/examples/Kaleidoscope/Chapter8/toy.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/examples/Kaleidoscope/Chapter8/toy.cpp?rev=264426&r1=264425&r2=264426&view=diff
==============================================================================
--- llvm/trunk/examples/Kaleidoscope/Chapter8/toy.cpp (original)
+++ llvm/trunk/examples/Kaleidoscope/Chapter8/toy.cpp Fri Mar 25 12:33:32 2016
@@ -426,14 +426,14 @@ static int GetTokPrecedence() {
   return TokPrec;
 }
 
-/// Error* - These are little helper functions for error handling.
-std::unique_ptr<ExprAST> Error(const char *Str) {
+/// LogError* - These are little helper functions for error handling.
+std::unique_ptr<ExprAST> LogError(const char *Str) {
   fprintf(stderr, "Error: %s\n", Str);
   return nullptr;
 }
 
-std::unique_ptr<PrototypeAST> ErrorP(const char *Str) {
-  Error(Str);
+std::unique_ptr<PrototypeAST> LogErrorP(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -454,7 +454,7 @@ static std::unique_ptr<ExprAST> ParsePar
     return nullptr;
 
   if (CurTok != ')')
-    return Error("expected ')'");
+    return LogError("expected ')'");
   getNextToken(); // eat ).
   return V;
 }
@@ -486,7 +486,7 @@ static std::unique_ptr<ExprAST> ParseIde
         break;
 
       if (CurTok != ',')
-        return Error("Expected ')' or ',' in argument list");
+        return LogError("Expected ')' or ',' in argument list");
       getNextToken();
     }
   }
@@ -509,7 +509,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_then)
-    return Error("expected then");
+    return LogError("expected then");
   getNextToken(); // eat the then
 
   auto Then = ParseExpression();
@@ -517,7 +517,7 @@ static std::unique_ptr<ExprAST> ParseIfE
     return nullptr;
 
   if (CurTok != tok_else)
-    return Error("expected else");
+    return LogError("expected else");
 
   getNextToken();
 
@@ -534,20 +534,20 @@ static std::unique_ptr<ExprAST> ParseFor
   getNextToken(); // eat the for.
 
   if (CurTok != tok_identifier)
-    return Error("expected identifier after for");
+    return LogError("expected identifier after for");
 
   std::string IdName = IdentifierStr;
   getNextToken(); // eat identifier.
 
   if (CurTok != '=')
-    return Error("expected '=' after for");
+    return LogError("expected '=' after for");
   getNextToken(); // eat '='.
 
   auto Start = ParseExpression();
   if (!Start)
     return nullptr;
   if (CurTok != ',')
-    return Error("expected ',' after for start value");
+    return LogError("expected ',' after for start value");
   getNextToken();
 
   auto End = ParseExpression();
@@ -564,7 +564,7 @@ static std::unique_ptr<ExprAST> ParseFor
   }
 
   if (CurTok != tok_in)
-    return Error("expected 'in' after for");
+    return LogError("expected 'in' after for");
   getNextToken(); // eat 'in'.
 
   auto Body = ParseExpression();
@@ -584,7 +584,7 @@ static std::unique_ptr<ExprAST> ParseVar
 
   // At least one variable name is required.
   if (CurTok != tok_identifier)
-    return Error("expected identifier after var");
+    return LogError("expected identifier after var");
 
   while (1) {
     std::string Name = IdentifierStr;
@@ -608,12 +608,12 @@ static std::unique_ptr<ExprAST> ParseVar
     getNextToken(); // eat the ','.
 
     if (CurTok != tok_identifier)
-      return Error("expected identifier list after var");
+      return LogError("expected identifier list after var");
   }
 
   // At this point, we have to have 'in'.
   if (CurTok != tok_in)
-    return Error("expected 'in' keyword after 'var'");
+    return LogError("expected 'in' keyword after 'var'");
   getNextToken(); // eat 'in'.
 
   auto Body = ParseExpression();
@@ -633,7 +633,7 @@ static std::unique_ptr<ExprAST> ParseVar
 static std::unique_ptr<ExprAST> ParsePrimary() {
   switch (CurTok) {
   default:
-    return Error("unknown token when expecting an expression");
+    return LogError("unknown token when expecting an expression");
   case tok_identifier:
     return ParseIdentifierExpr();
   case tok_number:
@@ -728,7 +728,7 @@ static std::unique_ptr<PrototypeAST> Par
 
   switch (CurTok) {
   default:
-    return ErrorP("Expected function name in prototype");
+    return LogErrorP("Expected function name in prototype");
   case tok_identifier:
     FnName = IdentifierStr;
     Kind = 0;
@@ -737,7 +737,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_unary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected unary operator");
+      return LogErrorP("Expected unary operator");
     FnName = "unary";
     FnName += (char)CurTok;
     Kind = 1;
@@ -746,7 +746,7 @@ static std::unique_ptr<PrototypeAST> Par
   case tok_binary:
     getNextToken();
     if (!isascii(CurTok))
-      return ErrorP("Expected binary operator");
+      return LogErrorP("Expected binary operator");
     FnName = "binary";
     FnName += (char)CurTok;
     Kind = 2;
@@ -755,7 +755,7 @@ static std::unique_ptr<PrototypeAST> Par
     // Read the precedence if present.
     if (CurTok == tok_number) {
       if (NumVal < 1 || NumVal > 100)
-        return ErrorP("Invalid precedecnce: must be 1..100");
+        return LogErrorP("Invalid precedecnce: must be 1..100");
       BinaryPrecedence = (unsigned)NumVal;
       getNextToken();
     }
@@ -763,20 +763,20 @@ static std::unique_ptr<PrototypeAST> Par
   }
 
   if (CurTok != '(')
-    return ErrorP("Expected '(' in prototype");
+    return LogErrorP("Expected '(' in prototype");
 
   std::vector<std::string> ArgNames;
   while (getNextToken() == tok_identifier)
     ArgNames.push_back(IdentifierStr);
   if (CurTok != ')')
-    return ErrorP("Expected ')' in prototype");
+    return LogErrorP("Expected ')' in prototype");
 
   // success.
   getNextToken(); // eat ')'.
 
   // Verify right number of names for operator.
   if (Kind && ArgNames.size() != Kind)
-    return ErrorP("Invalid number of operands for operator");
+    return LogErrorP("Invalid number of operands for operator");
 
   return llvm::make_unique<PrototypeAST>(FnLoc, FnName, ArgNames, Kind != 0,
                                          BinaryPrecedence);
@@ -860,8 +860,8 @@ static std::map<std::string, AllocaInst
 static std::unique_ptr<KaleidoscopeJIT> TheJIT;
 static std::map<std::string, std::unique_ptr<PrototypeAST>> FunctionProtos;
 
-Value *ErrorV(const char *Str) {
-  Error(Str);
+Value *LogErrorV(const char *Str) {
+  LogError(Str);
   return nullptr;
 }
 
@@ -899,7 +899,7 @@ Value *VariableExprAST::codegen() {
   // Look this variable up in the function.
   Value *V = NamedValues[Name];
   if (!V)
-    return ErrorV("Unknown variable name");
+    return LogErrorV("Unknown variable name");
 
   KSDbgInfo.emitLocation(this);
   // Load the value.
@@ -913,7 +913,7 @@ Value *UnaryExprAST::codegen() {
 
   Function *F = getFunction(std::string("unary") + Opcode);
   if (!F)
-    return ErrorV("Unknown unary operator");
+    return LogErrorV("Unknown unary operator");
 
   KSDbgInfo.emitLocation(this);
   return Builder.CreateCall(F, OperandV, "unop");
@@ -930,7 +930,7 @@ Value *BinaryExprAST::codegen() {
     // dynamic_cast for automatic error checking.
     VariableExprAST *LHSE = static_cast<VariableExprAST *>(LHS.get());
     if (!LHSE)
-      return ErrorV("destination of '=' must be a variable");
+      return LogErrorV("destination of '=' must be a variable");
     // Codegen the RHS.
     Value *Val = RHS->codegen();
     if (!Val)
@@ -939,7 +939,7 @@ Value *BinaryExprAST::codegen() {
     // Look up the name.
     Value *Variable = NamedValues[LHSE->getName()];
     if (!Variable)
-      return ErrorV("Unknown variable name");
+      return LogErrorV("Unknown variable name");
 
     Builder.CreateStore(Val, Variable);
     return Val;
@@ -981,11 +981,11 @@ Value *CallExprAST::codegen() {
   // Look up the name in the global module table.
   Function *CalleeF = getFunction(Callee);
   if (!CalleeF)
-    return ErrorV("Unknown function referenced");
+    return LogErrorV("Unknown function referenced");
 
   // If argument mismatch error.
   if (CalleeF->arg_size() != Args.size())
-    return ErrorV("Incorrect # arguments passed");
+    return LogErrorV("Incorrect # arguments passed");
 
   std::vector<Value *> ArgsV;
   for (unsigned i = 0, e = Args.size(); i != e; ++i) {




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