Remove support for named procs with sugar.=> (#17220)

* Add docs & tests for named procs with sugar.=>
* Remove support for named procs in sugar.=>
* Resolve conflict
* Fix test

changelog.md

@@ -194,6 +194,9 @@ provided by the operating system.
 - `system.addEscapedChar` now renders `\r` as `\r` instead of `\c`, to be compatible
   with most other languages.
 
+- Removed support for named procs in `sugar.=>`
+
+
 ## Language changes
 
 - `nimscript` now handles `except Exception as e`.

lib/pure/sugar.nim

@@ -87,16 +87,6 @@ macro `=>`*(p, b: untyped): untyped =
 
   checkPragma(p, pragma) # check again after -> transform
 
-  since (1, 3):
-    if p.kind in {nnkCall, nnkObjConstr}:
-      # foo(x, y) => x + y
-      kind = nnkProcDef
-      name = p[0]
-      let newP = newNimNode(nnkPar)
-      for i in 1..<p.len:
-        newP.add(p[i])
-      p = newP
-
   case p.kind
   of nnkPar, nnkTupleConstr:
     var untypedBeforeColon = 0

tests/macros/tclosuremacro.nim

@@ -5,8 +5,6 @@ calling mystuff
 yes
 calling mystuff
 yes
-calling sugarWithPragma
-sugarWithPragma called
 '''
 """
 
@@ -40,7 +38,7 @@ proc pass2(f: (int, int) -> int): (int) -> int =
 
 doAssert pass2((x, y) => x + y)(4) == 6
 
-fun(x, y: int) {.noSideEffect.} => x + y
+const fun = (x, y: int) {.noSideEffect.} => x + y
 
 doAssert typeof(fun) is (proc (x, y: int): int {.nimcall.})
 doAssert fun(3, 4) == 7
@@ -70,9 +68,7 @@ m:
   proc mystuff() =
     echo "yes"
 
-sugarWithPragma() {.m.} => echo "sugarWithPragma called"
-
-typedParamAndPragma(x, y: int) {.used.} -> int => x + y
+const typedParamAndPragma = (x, y: int) -> int => x + y
 doAssert typedParamAndPragma(1, 2) == 3
 
 type
@@ -82,5 +78,3 @@ type
 var myBot = Bot()
 myBot.call = () {.noSideEffect.} => "I'm a bot."
 doAssert myBot.call() == "I'm a bot."
-
-