From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Wed, 30 May 2018 02:35:46 +0000 (-0400)
Subject: Fix the remaining 12 shift/reduce conflicts
X-Git-Url: https://git.xandkar.net/?p=tiger.ml.git;a=commitdiff_plain;h=6a74bf44cae52e2d56f58730e46a71eb9d4ba0c8

Fix the remaining 12 shift/reduce conflicts

which were due to associativity and precedence conflicts between operators,
previously defined as a single production
---

diff --git a/tiger/src/lib/tiger/tiger_parser.mly b/tiger/src/lib/tiger/tiger_parser.mly
index 610ea48..1bc0ae7 100644
--- a/tiger/src/lib/tiger/tiger_parser.mly
+++ b/tiger/src/lib/tiger/tiger_parser.mly
@@ -127,9 +127,53 @@ exp:
       let fun_args = $3 in
       sprintf "fun_call[%s, %s]" id fun_args
     }
-  | exp op exp
+  | exp PLUS exp
     {
-      sprintf "op[%s %s %s]" $1 $2 $3
+      sprintf "op_plus[%s + %s]" $1 $3
+    }
+  | exp MINUS exp
+    {
+      sprintf "op_minus[%s - %s]" $1 $3
+    }
+  | exp TIMES exp
+    {
+      sprintf "op_times[%s * %s]" $1 $3
+    }
+  | exp DIVIDE exp
+    {
+      sprintf "op_divide[%s / %s]" $1 $3
+    }
+  | exp EQ exp
+    {
+      sprintf "op_eq[%s = %s]" $1 $3
+    }
+  | exp NEQ exp
+    {
+      sprintf "op_neq[%s <> %s]" $1 $3
+    }
+  | exp GT exp
+    {
+      sprintf "op_gt[%s > %s]" $1 $3
+    }
+  | exp LT exp
+    {
+      sprintf "op_lt[%s < %s]" $1 $3
+    }
+  | exp GE exp
+    {
+      sprintf "op_ge[%s >= %s]" $1 $3
+    }
+  | exp LE exp
+    {
+      sprintf "op_le[%s <= %s]" $1 $3
+    }
+  | exp AND exp
+    {
+      sprintf "op_and[%s & %s]" $1 $3
+    }
+  | exp OR exp
+    {
+      sprintf "op_or[%s | %s]" $1 $3
     }
   | IF exp THEN exp ELSE exp
     {
@@ -311,21 +355,6 @@ fun_args:
     }
   ;
 
-op:
-  | PLUS   {"+"}
-  | MINUS  {"-"}
-  | TIMES  {"*"}
-  | DIVIDE {"/"}
-  | EQ     {"="}
-  | NEQ    {"<>"}
-  | GT     {">"}
-  | LT     {"<"}
-  | GE     {">="}
-  | LE     {"<="}
-  | AND    {"&"}
-  | OR     {"|"}
-  ;
-
 lvalue:
   | ID lvalue_part
     {