[32b6159246] Accept aspect patch for broken [lreplace] bytecode.

No more [lreplace {1 2 3} 2 0] => 1 2 2 3

2 files changed, 13 insertions, 0 deletions

diff --git a/generic/tclCompCmdsGR.c b/generic/tclCompCmdsGR.c
index e2fb43d..b77c43c 100644
--- a/generic/tclCompCmdsGR.c
+++ b/generic/tclCompCmdsGR.c
@@ -1501,6 +1501,10 @@ TclCompileLreplaceCmd(
 	return TCL_ERROR;
     }
 
+    if(idx2 != INDEX_END && idx2 < idx1) {
+	idx2 = idx1-1;
+    }
+
     /*
      * Work out what this [lreplace] is actually doing.
      */
diff --git a/tests/lreplace.test b/tests/lreplace.test
index b976788..d5c51ae 100644
--- a/tests/lreplace.test
+++ b/tests/lreplace.test
@@ -137,6 +137,15 @@ test lreplace-4.1 {Bug ccc2c2cc98: lreplace edge case} {
 test lreplace-4.2 {Bug ccc2c2cc98: lreplace edge case} {
     lreplace { } 1 1
 } {}
+test lreplace-4.3 {lreplace edge case} {
+    lreplace {1 2 3} 2 0
+} {1 2 3}
+test lreplace-4.4 {lreplace edge case} {
+    lreplace {1 2 3 4 5} 3 1
+} {1 2 3 4 5}
+test lreplace-4.4 {lreplace edge case} {
+    lreplace {1 2 3 4 5} 3 0 _
+} {1 2 3 _ 4 5}
 
 # cleanup
 catch {unset foo}