Merge branch 'devel' of github.com:nim-lang/Nim into devel

compiler/pragmas.nim

@@ -719,26 +719,34 @@ proc pragmaGuard(c: PContext; it: PNode; kind: TSymKind): PSym =
     result = qualifiedLookUp(c, n, {checkUndeclared})
 
 proc semCustomPragma(c: PContext, n: PNode): PNode =
+  var callNode: PNode
+
   if n.kind == nkIdent:
-    result = newTree(nkCall, n)
+    # pragma -> pragma()
+    callNode = newTree(nkCall, n)
   elif n.kind == nkExprColonExpr:
     # pragma: arg -> pragma(arg)
-    result = newTree(nkCall, n[0], n[1])
+    callNode = newTree(nkCall, n[0], n[1])
   elif n.kind in nkPragmaCallKinds:
-    result = n
+    callNode = n
   else:
     invalidPragma(c, n)
     return n
 
-  let r = c.semOverloadedCall(c, result, n, {skTemplate}, {efNoUndeclared})
+  let r = c.semOverloadedCall(c, callNode, n, {skTemplate}, {efNoUndeclared})
+
   if r.isNil or sfCustomPragma notin r[0].sym.flags:
     invalidPragma(c, n)
-  else:
+    return n
+
   result = r
-    if n.kind == nkIdent:
+  # Transform the nkCall node back to its original form if possible
+  if n.kind == nkIdent and r.len == 1:
+    # pragma() -> pragma
     result = result[0]
-    elif n.kind == nkExprColonExpr:
+  elif n.kind == nkExprColonExpr and r.len == 2:
-      result.kind = n.kind # pragma(arg) -> pragma: arg
+    # pragma(arg) -> pragma: arg
+    result.kind = n.kind
 
 proc singlePragma(c: PContext, sym: PSym, n: PNode, i: var int,
                   validPragmas: TSpecialWords, comesFromPush: bool) : bool =

compiler/semstmts.nim

@@ -1136,7 +1136,7 @@ proc typeSectionRightSidePass(c: PContext, n: PNode) =
       # its evaluated result here so that we don't execute it once again in the
       # final pass
       if a[2].kind in nkCallKinds:
-        a[2] = newNodeIT(nkType, a[2].info, t)
+        incl a[2].flags, nfSem # bug #10548
     if sfExportc in s.flags and s.typ.kind == tyAlias:
       localError(c.config, name.info, "{.exportc.} not allowed for type aliases")
     let aa = a.sons[2]
@@ -1191,6 +1191,9 @@ proc typeSectionFinalPass(c: PContext, n: PNode) =
     # compute the type's size and check for illegal recursions:
     if a.sons[1].kind == nkEmpty:
       var x = a[2]
+      if x.kind in nkCallKinds and nfSem in x.flags:
+        discard "already semchecked, see line marked with bug #10548"
+      else:
         while x.kind in {nkStmtList, nkStmtListExpr} and x.len > 0:
           x = x.lastSon
         if x.kind notin {nkObjectTy, nkDistinctTy, nkEnumTy, nkEmpty} and

koch.nim

@@ -291,13 +291,14 @@ proc boot(args: string) =
                       hostOs & "_" & hostCpu
 
   let nimStart = findStartNim()
-  copyExe(nimStart, 0.thVersion)
   for i in 0..2:
     let defaultCommand = if useCpp: "cpp" else: "c"
     let bootOptions = if args.len == 0 or args.startsWith("-"): defaultCommand else: ""
     echo "iteration: ", i+1
     var extraOption = ""
+    var nimi = i.thVersion
     if i == 0:
+      nimi = nimStart
       extraOption.add " --skipUserCfg --skipParentCfg"
         # The configs are skipped for bootstrap
         # (1st iteration) to prevent newer flags from breaking bootstrap phase.
@@ -307,8 +308,9 @@ proc boot(args: string) =
       if version.startsWith "Nim Compiler Version 0.19.0":
         extraOption.add " -d:nimBoostrapCsources0_19_0"
         # remove this when csources get updated
-    exec i.thVersion & " $# $# $# --nimcache:$# compiler" / "nim.nim" %
+
-      [bootOptions, extraOption, args, smartNimcache]
+    exec "$# $# $# $# --nimcache:$# compiler" / "nim.nim" %
+      [nimi, bootOptions, extraOption, args, smartNimcache]
     if sameFileContent(output, i.thVersion):
       copyExe(output, finalDest)
       echo "executables are equal: SUCCESS!"

lib/core/macros.nim

@@ -1515,7 +1515,7 @@ macro getCustomPragmaVal*(n: typed, cp: typed{nkSym}): untyped =
       else:
         let def = p[0].getImpl[3]
         result = newTree(nnkPar)
-        for i in 1..<p.len:
+        for i in 1 ..< def.len:
           let key = def[i][0]
           let val = p[i]
           result.add newTree(nnkExprColonExpr, key, val)

tests/macros/tmacrotypes.nim

@@ -38,3 +38,33 @@ block:
     Club = Blub
 
   static: doAssert(c == 1)
+
+# bug #10702
+type
+  VectorElementType = SomeNumber | bool
+  Vec*[N : static[int], T: VectorElementType] = object
+    arr*: array[N, T]
+
+type
+  Vec4*[T: VectorElementType] = Vec[4,T]
+  Vec3*[T: VectorElementType] = Vec[3,T]
+  Vec2*[T: VectorElementType] = Vec[2,T]
+
+template vecGen(U:untyped,V:typed):typed=
+  ## ``U`` suffix
+  ## ``V`` valType
+  ##
+  type
+    `Vec2 U`* {.inject.} = Vec2[V]
+    `Vec3 U`* {.inject.} = Vec3[V]
+    `Vec4 U`* {.inject.} = Vec4[V]
+
+vecGen(f, float32)
+
+macro foobar(arg: typed): untyped =
+  let typ = arg.getTypeInst
+  doAssert typ.getImpl[^1].kind == nnkCall
+
+var x: Vec2f
+
+foobar(x)

tests/pragmas/tcustom_pragma.nim

@@ -233,3 +233,10 @@ block:
   doAssert ps.first == ps[0] and ps.first == "one"
   doAssert ps.second == ps[1] and ps.second == 2
   doAssert ps.third == ps[2] and ps.third == 3.0
+
+# pragma with implicit&explicit generic types
+block:
+  template fooBar[T](x: T; c: static[int] = 42; m: char) {.pragma.}
+  var e {.fooBar("foo", 123, 'u').}: int
+  doAssert(hasCustomPragma(e, fooBar))
+  doAssert(getCustomPragmaVal(e, fooBar).c == 123)