From e89d1e331e09f13b01ad0436d00bf199214d4d46 Mon Sep 17 00:00:00 2001
From: oehhar <harald.oehlmann@elmicron.de>
Date: Tue, 16 Jan 2018 14:13:14 +0000
Subject: Solve case where msgcat is called within a class definition script
 (works only for 8.7)

---
 library/msgcat/msgcat.tcl | 29 +++++++++++++++++----------
 tests/msgcat.test         | 50 ++++++++++++++++++++++++++++++++++++++---------
 2 files changed, 60 insertions(+), 19 deletions(-)

diff --git a/library/msgcat/msgcat.tcl b/library/msgcat/msgcat.tcl
index 4233005..0b1079b 100644
--- a/library/msgcat/msgcat.tcl
+++ b/library/msgcat/msgcat.tcl
@@ -1151,17 +1151,26 @@ proc msgcat::ConvertLocale {value} {
 proc ::msgcat::PackageNamespaceGet {} {
     uplevel 2 {
 	# Check for no object
-	# (undocumented test proposed by dkf 2018-01-12)
-	if { [namespace which self] ne "::oo::Helpers::self"} {
-	    return [namespace current]
-	}
-	set Class [info object class [self]]
-	# Check for classless defined object
-	if {$Class eq {::oo::object}} {
-	    return [namespace qualifiers [self]]
+	switch -exact -- [namespace which self] {
+	    {::oo::define::self} {
+		# We are within a class definition
+		return [namespace qualifiers [self]]
+	    }
+	    {::oo::Helpers::self} {
+		# We are within an object
+		set Class [info object class [self]]
+		# Check for classless defined object
+		if {$Class eq {::oo::object}} {
+		    return [namespace qualifiers [self]]
+		}
+		# Class defined object
+		return [namespace qualifiers $Class]
+	    }
+	    default {
+		# Not in object environment
+		return [namespace current]
+	    }
 	}
-	# Class defined object
-	return [namespace qualifiers $Class]
     }
 }
   
diff --git a/tests/msgcat.test b/tests/msgcat.test
index a71ee3f..7f872ed 100644
--- a/tests/msgcat.test
+++ b/tests/msgcat.test
@@ -1098,10 +1098,26 @@ namespace eval ::msgcat::test {
 
     # Tests msgcat-15.*: tcloo coverage
     
-    # There are 3 use-cases, where 2 must be tested now:
-    # - namespace defined, class defined oo, classless
+    # There are 4 use-cases, where 3 must be tested now:
+    # - namespace defined, in class definition, class defined oo, classless
 
-    test msgcat-15.1 {mc in class} -setup {
+    test msgcat-15.1 {mc in class setup} -setup {
+	# full namespace is ::msgcat::test:bar
+	namespace eval bar {
+	    ::msgcat::mcset foo_BAR con2 con2bar
+	    oo::class create ClassCur
+	}
+	variable locale [mclocale]
+	mclocale foo_BAR
+    } -cleanup {
+	mclocale $locale
+	namespace eval bar {::msgcat::mcforgetpackage}
+	namespace delete bar
+    } -body {
+	oo::define bar::ClassCur msgcat::mc con2
+    } -result con2bar
+
+    test msgcat-15.2 {mc in class} -setup {
 	# full namespace is ::msgcat::test:bar
 	namespace eval bar {
 	    ::msgcat::mcset foo_BAR con2 con2bar
@@ -1122,7 +1138,7 @@ namespace eval ::msgcat::test {
 	$baz::ObjCur method1
     } -result con2bar
 
-    test msgcat-15.2 {mc in classless object} -setup {
+    test msgcat-15.3 {mc in classless object} -setup {
 	# full namespace is ::msgcat::test:bar
 	namespace eval bar {
 	    ::msgcat::mcset foo_BAR con2 con2bar
@@ -1139,7 +1155,7 @@ namespace eval ::msgcat::test {
 	bar::ObjCur method1
     } -result con2bar
     
-    test msgcat-15.3 {mc in classless object with explicite namespace eval}\
+    test msgcat-15.4 {mc in classless object with explicite namespace eval}\
     -setup {
 	# full namespace is ::msgcat::test:bar
 	namespace eval bar {
@@ -1171,7 +1187,18 @@ namespace eval ::msgcat::test {
 	namespace eval baz {msgcat::mcpackagenamespaceget}
     } -result ::msgcat::test::baz
 
-    test msgcat-16.2 {mcpackagenamespaceget in class} -setup {
+    test msgcat-16.2 {mcpackagenamespaceget in class setup} -setup {
+	namespace eval bar {
+	    oo::class create ClassCur
+	    oo::define ClassCur variable a
+	}
+    } -cleanup {
+	namespace delete bar
+    } -body {
+	oo::define bar::ClassCur msgcat::mcpackagenamespaceget
+    } -result ::msgcat::test::bar
+
+    test msgcat-16.3 {mcpackagenamespaceget in class} -setup {
 	namespace eval bar {
 	    oo::class create ClassCur
 	    oo::define ClassCur method method1 {} {msgcat::mcpackagenamespaceget}
@@ -1185,7 +1212,7 @@ namespace eval ::msgcat::test {
 	$baz::ObjCur method1
     } -result ::msgcat::test::bar
 
-    test msgcat-16.3 {mcpackagenamespaceget in classless object} -setup {
+    test msgcat-16.4 {mcpackagenamespaceget in classless object} -setup {
 	namespace eval bar {
 	    oo::object create ObjCur
 	    oo::objdefine ObjCur method method1 {} {msgcat::mcpackagenamespaceget}
@@ -1196,7 +1223,7 @@ namespace eval ::msgcat::test {
 	bar::ObjCur method1
     } -result ::msgcat::test::bar
 
-    test msgcat-16.4\
+    test msgcat-16.5\
     {mcpackagenamespaceget in classless object with explicite namespace eval}\
     -setup {
 	namespace eval bar {
@@ -1216,7 +1243,12 @@ namespace eval ::msgcat::test {
 
     # Test msgcat-17.*: mcn command
     
-    test msgcat-17.1 {mcn} -setup {
+    test msgcat-17.1 {mcn no parameters} -body {
+	mcn
+    } -returnCodes 1\
+    -result {wrong # args: should be "mcn ns src ?arg ...?"}
+
+    test msgcat-17.2 {mcn} -setup {
 	namespace eval bar {::msgcat::mcset foo_BAR con1 con1bar}
 	variable locale [mclocale]
 	mclocale foo_BAR
-- 
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