Document deep magic in compiled [expr]

2 files changed, 20 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 48bd6ac..d9281f0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,8 @@
 2005-01-14  Donal K. Fellows  <donal.k.fellows@man.ac.uk>
 
+	* tests/compile.test (compile-17.1): Document known issue with
+	binding time of compiled command interpretations in [expr].
+
 	* generic/tclIOUtil.c (TclFSFileAttrIndex): New helper function so
 	that we don't need to hard-code attribute indexes. [Bug 1100671]
 
diff --git a/tests/compile.test b/tests/compile.test
index 5025671..9deb680 100644
--- a/tests/compile.test
+++ b/tests/compile.test
@@ -11,7 +11,7 @@
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 #
-# RCS: @(#) $Id: compile.test,v 1.34 2004/12/02 11:10:49 dkf Exp $
+# RCS: @(#) $Id: compile.test,v 1.35 2005/01/14 15:18:16 dkf Exp $
 
 package require tcltest 2
 namespace import -force ::tcltest::*
@@ -587,6 +587,22 @@ test compile-16.23.$noComp {
 
 }	;# End of noComp loop
 
+# This test is messy because it wrecks the interpreter it runs in!
+test compile-17.1 {Command interpretation binding for compiled code} -constraints knownBug -setup {
+    set i [interp create]
+} -body {
+    $i eval {
+	if 1 {
+	    expr [
+		proc expr args {return substituted}
+		format {[subst compiled]}
+	    ]
+	}
+    }
+} -cleanup {
+    interp delete $i
+} -result substituted
+
 # cleanup
 catch {rename p ""}
 catch {namespace delete test_ns_compile}