Merge pull request #11159 from JasperJenkins/const-named-tuple-unpack

Const named tuple unpacking

compiler/semstmts.nim

@@ -641,7 +641,8 @@ proc semConst(c: PContext, n: PNode): PNode =
         addSon(b, copyTree(def))
       else:
         setVarType(c, v, typ.sons[j])
-        v.ast = def[j]
+        v.ast = if def[j].kind != nkExprColonExpr: def[j]
+                else: def[j].sons[1]
         b.sons[j] = newSymNode(v)
     addSon(result,b)
   dec c.inStaticContext

tests/tuples/t9177.nim

@@ -1,6 +1,5 @@
 discard """
   action: run
-  disabled: true
 """
 
 block:

tests/tuples/ttuples_various.nim

@@ -81,6 +81,27 @@ block unpack_const:
   doAssert z == 6
 
 
+# bug #10724
+block unpack_const_named:
+  const (a, ) = (x: 1, )
+  doAssert a == 1
+
+  const (b, c) = (x: 2, y: 3)
+  doAssert b == 2
+  doAssert c == 3
+
+  const (d, e, f) = (x: 4, y: 5, z: 6)
+  doAssert d == 4
+  doAssert e == 5
+  doAssert f == 6
+
+block const_named:
+  const x = block:
+    (a: 1, b: 2, c: 3)
+  doAssert x.a == 1
+  doAssert x.b == 2
+  doAssert x.c == 3
+
 
 block tuple_subscript:
   proc`[]` (t: tuple, key: string): string =