diff --git a/src/grammar.y b/src/grammar.y
index a7d173e..e98f9d0 100644
--- a/src/grammar.y
+++ b/src/grammar.y
@@ -23,7 +23,13 @@
     extern bool tc_flag;
     int token_tracker;
     TableNode * tn;
-    void error_type(TableNode * left, TableNode * right, const char *format, ...);
+    typedef enum {
+        ERROR_RUNTIME = 1,
+        ERROR_SYNTAX = 2,
+        ERROR_TYPE = 3,
+        ERROR_UNDEFINED = 4
+    } ErrorType;
+    void throw_error(ErrorType error_type, const char *format, ...);
 %}
 
 %union {
@@ -171,9 +177,9 @@ definition:
         printdebug("see function def rule 1\n");
         TableNode *node = table_lookup(getAncestor(cur), $1);
         if (node == undefined) {
-            error_type(undefined, undefined, "Undefined node declared.");
+            printdebug("Undefined node declared.");
         }else if(getAdInfoType(node) != TYPE_FUNCTION_DECLARATION){
-            error_type(undefined, undefined, "Not a valid function declaration.");
+            throw_error(ERROR_SYNTAX, "Not a valid function declaration.");
         }  
         else {
             printdebug("setting as keyword to true");
@@ -187,7 +193,7 @@ definition:
             //TableNode *parameter = getParameter(table_lookup(getAncestor(cur), getType(table_lookup(getAncestor(cur), $1))));
             printdebug("type of parameter: %s", getName(parameter));
         if (parameter == undefined) {
-            error_type(undefined, undefined, "Undefined parameter in function definition.");
+            throw_error(ERROR_TYPE, "Undefined parameter in function definition.");
         }else if(getAdInfoType(parameter) != TYPE_RECORD_TYPE){
             int type_of_param_type = getAdInfoType(parameter);//this is an enum value defined in symbol_table.h
         if( type_of_param_type == TYPE_UNDEFINED
@@ -198,7 +204,7 @@ definition:
             || type_of_param_type == TYPE_SYSTEM_DEFINED
             || type_of_param_type == TYPE_RECORD
             || type_of_param_type == TYPE_STRING){ // note that strings are actually arrays so this is unused 
-            error_type(parameter, undefined, "Invalid type (%s) of parameter in function definition.", getAdInfo(parameter));
+            throw_error(ERROR_TYPE, "Invalid type (%s) of parameter in function definition.", getAdInfo(parameter));
             type_of_param_type = TYPE_UNDEFINED; // setting tag as undefined in these cases
             }
         if(type_of_param_type == TYPE_UNDEFINED){
@@ -226,7 +232,7 @@ definition:
                     || type_of_param_type == TYPE_SYSTEM_DEFINED
                     || type_of_param_type == TYPE_RECORD_TYPE
                     || type_of_param_type == TYPE_STRING){ // note that strings are actually arrays so this is unused 
-                    error_type(entry, undefined, "Invalid type (%s) of parameter in function definition.", getAdInfo(entry));
+                    throw_error(ERROR_TYPE, "Invalid type (%s) of parameter in function definition.", getAdInfo(entry));
                     type_of_param_type = TYPE_UNDEFINED; // setting tag as undefined in these cases
                 }else{
                     printdebug("type of parameter correctly being passed in to AS function definition is %s which is valid", getType(entry));
@@ -257,9 +263,9 @@ definition:
         } idlist R_PAREN ASSIGN sblock  {
             TableNode *expected = getReturn(getTypeEntry(look_up(cur, $1)));
             if ($8 == undefined) {
-                error_type(undefined, undefined, "Expected %s as return type but got undefined (possibly NULL). Differing return types in function.", getName(expected));
+                throw_error(ERROR_TYPE, "Expected %s as return type but got undefined (possibly NULL). Differing return types in function.", getName(expected));
             } else if ($8 != expected) {
-                error_type(undefined, undefined, "Expected %s as return type but got %s. Differing return types in function.", getName(expected), getName($8));
+                throw_error(ERROR_TYPE, "Expected %s as return type but got %s. Differing return types in function.", getName(expected), getName($8));
             } else {
                 printdebug("CORRECT RETURN TYPE!!!");
             }
@@ -274,7 +280,7 @@ function_declaration:
             CreateEntry(cur,TYPE_FUNCTION_DECLARATION, look_up(cur, $4), $2, CreateFunctionDeclarationInfo(-1, false));
         }
             else{
-                error_type(undefined, undefined, "Function declatation (%s) is not a valid function type", $2);
+                throw_error(ERROR_TYPE, "Function declatation (%s) is not a valid function type", $2);
                 CreateEntry(cur,TYPE_FUNCTION_DECLARATION, look_up(cur, $4), $2, CreateFunctionDeclarationInfo(-1, false));
 
             }
@@ -286,7 +292,7 @@ function_declaration:
             CreateEntry(cur,TYPE_FUNCTION_DECLARATION, look_up(cur, $5), $3, CreateFunctionDeclarationInfo(-1, false));
         }
             else{
-                error_type(undefined, undefined, "Function declatation (%s) is not a valid function type", $3);
+                throw_error(ERROR_TYPE, "Function declatation (%s) is not a valid function type", $3);
                 CreateEntry(cur,TYPE_FUNCTION_DECLARATION, look_up(cur, $5), $3, CreateFunctionDeclarationInfo(-1, false));
 
             }
@@ -431,7 +437,7 @@ declaration:
             printdebug("ID/TYPE: %s,  ID: %s", getName((TableNode*)$1), $3) ;
             int d = getAdInfoType((TableNode*)$1);
             if(d == TYPE_UNDEFINED) {
-                error_type(undefined, undefined, "Undefined type passed in declaration list");
+                printdebug("Undefined type passed in declaration list");
                 CreateEntry(cur,d,(TableNode*)$1,$3,getAdInfo((TableNode*)$1)); 
             }
             else if(d == TYPE_FUNCTION_TYPE) {
@@ -454,7 +460,7 @@ declaration:
                 d = TYPE_PRIMITIVE;
                 CreateEntry(cur,d,(TableNode*)$1,$3,getAdInfo((TableNode*)$1)); 
             }else {
-                error_type(undefined, undefined, "Invalid type passed in declaration list.");
+                printdebug("Invalid type passed in declaration list.");
                 CreateEntry(cur,d,(TableNode*)$1,$3,getAdInfo((TableNode*)$1)); 
             }
         }
@@ -552,7 +558,7 @@ simple_statement:
 
                     node = getTypeEntry((TableNode*)$1);
                 } else{
-                    error_type(undefined, undefined, "Invalid type passed to assignable.");
+                    printdebug("Invalid type passed to assignable.");
                     node = undefined;
                 }
 
@@ -564,7 +570,7 @@ simple_statement:
             else if(getAdInfoType(node) == getAdInfoType((TableNode*)$3)){
                 printdebug("%s[☺] Passed type check; %s = %s", COLOR_GREEN, getName(node), getName((TableNode*)$3));
             } else {
-                error_type(node, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName(node), getName((TableNode*)$3));
             }
 
             $$ = undefined;
@@ -633,7 +639,7 @@ expression:
                 $$=(TableNode*)$2;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$2, boo, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$2), getName(boo));
             }
         }
 
@@ -644,7 +650,7 @@ expression:
                 $$=(TableNode*)$1; 
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -655,7 +661,7 @@ expression:
                 $$=(TableNode*)$1;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -666,7 +672,7 @@ expression:
                 $$=(TableNode*)$1;
             } else{
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -677,7 +683,7 @@ expression:
                 $$=(TableNode*)$1;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -688,7 +694,7 @@ expression:
                 $$=$1;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -699,7 +705,7 @@ expression:
                 $$=$1;
             } else{
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -710,7 +716,7 @@ expression:
                 $$=$1;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
                     
@@ -721,7 +727,7 @@ expression:
                 $$=boo;
             } else {
                 $$=undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -732,7 +738,7 @@ expression:
                 $$=boo;
             } else {
                 $$ = undefined;
-                error_type((TableNode*)$1, (TableNode*)$3, "");
+                throw_error(ERROR_TYPE, "%s != %s", getName((TableNode*)$1), getName((TableNode*)$3));
             }
         }
 
@@ -755,7 +761,7 @@ expression:
                 $$= ((TableNode*)$1);
                 }
             else {
-                error_type(undefined, undefined, "Invalid type passed to expression.");
+                printdebug("Invalid type passed to expression.");
                 $$= ((TableNode*)$1);
             }
     
@@ -773,7 +779,7 @@ expression:
             if(d == TYPE_ARRAY_TYPE || d == TYPE_ARRAY || d == TYPE_RECORD_TYPE || d == TYPE_RECORD) {
                 $$ = addr;
             } else {
-                error_type(undefined, undefined, "Invalid memOp expression (%s).", getName((TableNode*)$2));
+                throw_error(ERROR_TYPE, "Invalid memOp expression (%s).", getName((TableNode*)$2));
                 $$=undefined;
             }
         }
@@ -977,35 +983,48 @@ types:
 
 
 
-void error_type(TableNode * left, TableNode * right, const char *format, ...) {
+void throw_error(ErrorType error_type, const char *format, ...) {
     int line = yylloc.first_line;
     int column = yylloc.first_column;
 
+    char * error_name = "";
+
+    switch (error_type) {
+        case ERROR_RUNTIME:
+            error_name = malloc(strlen("RUNTIME") + 1);
+            strcpy(error_name, "RUNTIME");
+            break;
+        case ERROR_SYNTAX:
+            error_name = malloc(strlen("SYNTAX") + 1);
+            strcpy(error_name, "SYNTAX");
+            break;
+        case ERROR_TYPE:
+            error_name = malloc(strlen("TYPE") + 1);
+            strcpy(error_name, "TYPE");
+            break;
+        case ERROR_UNDEFINED:
+            error_name = malloc(strlen("UNDEFINED") + 1);
+            strcpy(error_name, "UNDEFINED");
+            break;
+    }
+
+
     if (tc_flag) {
         yyerror("");
-        if (strcmp(format, "") == 0) {
-            if (asc_flag != NULL) {
-                fprintf(asc_flag, "(%d:%d) ** TYPE ERROR: %s != %s\n", line, column, getName(left), getName(right));
-            } else {
-                fprintf(stderr, "%s(%d:%d) ** TYPE ERROR%s: %s%s %s!= %s%s\n",
-                    COLOR_RED, line, column, COLOR_WHITE, COLOR_YELLOW, getName(left), COLOR_WHITE, COLOR_YELLOW, getName(right), COLOR_WHITE);
-            }
+        if (asc_flag != NULL) {
+            fprintf(asc_flag, "(%d:%d) ** %s ERROR: ", line, column, error_name);
+            va_list args;
+            va_start(args, format);
+            vfprintf(asc_flag, format, args);
+            va_end(args);
+            fprintf(asc_flag, "\n");
         } else {
-            if (asc_flag != NULL) {
-                fprintf(asc_flag, "(%d:%d) ** TYPE ERROR: ", line, column);
-                va_list args;
-                va_start(args, format);
-                vfprintf(asc_flag, format, args);
-                va_end(args);
-                fprintf(asc_flag, "\n");
-            } else {
-                fprintf(stderr, "%s(%d:%d) ** TYPE ERROR%s: %s", COLOR_RED, line, column, COLOR_WHITE, COLOR_YELLOW);
-                va_list args;
-                va_start(args, format);
-                vfprintf(stderr, format, args);
-                va_end(args);
-                fprintf(stderr, "%s\n", COLOR_WHITE);
-            }
+            fprintf(stderr, "%s(%d:%d) ** %s ERROR%s: %s", COLOR_RED, line, column, error_name, COLOR_WHITE, COLOR_YELLOW);
+            va_list args;
+            va_start(args, format);
+            vfprintf(stderr, format, args);
+            va_end(args);
+            fprintf(stderr, "%s\n", COLOR_WHITE);
         }
     }
 }