From 3505149381c15c07bd990600a7a721e62b560df6 Mon Sep 17 00:00:00 2001
From: Mark Spanbroek <mark@spanbroek.net>
Date: Wed, 26 Jan 2022 17:03:43 +0100
Subject: [PATCH] Remove {.constant.} pragma

Has not been allowed in Solidity since 0.5.0.
---
 ethers/contract.nim | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/ethers/contract.nim b/ethers/contract.nim
index 520e5b5..e0620b6 100644
--- a/ethers/contract.nim
+++ b/ethers/contract.nim
@@ -87,8 +87,6 @@ func isConstant(procedure: NimNode): bool =
       return true
     elif pragma.eqIdent "pure":
       return true
-    elif pragma.eqIdent "constant":
-      return true
   false
 
 func addContractCall(procedure: var NimNode) =
@@ -123,7 +121,7 @@ func checkReturnType(procedure: NimNode) =
   let returntype = procedure[3][0]
   if returntype.kind != nnkEmpty and not procedure.isConstant:
     const message =
-      "only contract functions with {.constant.}, {.pure.} or {.view.} " &
+      "only contract functions with {.view.} or {.pure.} " &
       "can have a return type"
     error(message, returntype)
 
@@ -144,4 +142,3 @@ macro contract*(procedure: untyped{nkProcDef|nkMethodDef}): untyped =
 
 template view* {.pragma.}
 template pure* {.pragma.}
-template constant* {.pragma.}