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-rw-r--r--generic/tclTest.c54
-rw-r--r--tests/lrange.test26
2 files changed, 80 insertions, 0 deletions
diff --git a/generic/tclTest.c b/generic/tclTest.c
index 45cca5a..0e34af7 100644
--- a/generic/tclTest.c
+++ b/generic/tclTest.c
@@ -220,6 +220,9 @@ static void SpecialFree(char *blockPtr);
static int StaticInitProc(Tcl_Interp *interp);
static int TestasyncCmd(ClientData dummy,
Tcl_Interp *interp, int argc, const char **argv);
+static int TestpurebytesobjObjCmd(ClientData clientData,
+ Tcl_Interp *interp, int objc,
+ Tcl_Obj *const objv[]);
static int TestbytestringObjCmd(ClientData clientData,
Tcl_Interp *interp, int objc,
Tcl_Obj *const objv[]);
@@ -570,6 +573,7 @@ Tcltest_Init(
Tcl_CreateObjCommand(interp, "gettimes", GetTimesObjCmd, NULL, NULL);
Tcl_CreateCommand(interp, "noop", NoopCmd, NULL, NULL);
Tcl_CreateObjCommand(interp, "noop", NoopObjCmd, NULL, NULL);
+ Tcl_CreateObjCommand(interp, "testpurebytesobj", TestpurebytesobjObjCmd, NULL, NULL);
Tcl_CreateObjCommand(interp, "testbytestring", TestbytestringObjCmd, NULL, NULL);
Tcl_CreateObjCommand(interp, "testwrongnumargs", TestWrongNumArgsObjCmd,
NULL, NULL);
@@ -4959,6 +4963,56 @@ NoopObjCmd(
/*
*----------------------------------------------------------------------
*
+ * TestpurebytesobjObjCmd --
+ *
+ * This object-based procedure constructs a pure bytes object
+ * without type and with internal representation containing NULL's.
+ *
+ * If no argument supplied it returns empty object with tclEmptyStringRep,
+ * otherwise it returns this as pure bytes object with bytes value equal
+ * string.
+ *
+ * Results:
+ * Returns the TCL_OK result code.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+TestpurebytesobjObjCmd(
+ ClientData unused, /* Not used. */
+ Tcl_Interp *interp, /* Current interpreter. */
+ int objc, /* Number of arguments. */
+ Tcl_Obj *const objv[]) /* The argument objects. */
+{
+ Tcl_Obj *objPtr;
+
+ if (objc > 2) {
+ Tcl_WrongNumArgs(interp, 1, objv, "?string?");
+ return TCL_ERROR;
+ }
+ objPtr = Tcl_NewObj();
+ /*
+ objPtr->internalRep.twoPtrValue.ptr1 = NULL;
+ objPtr->internalRep.twoPtrValue.ptr2 = NULL;
+ */
+ memset(&objPtr->internalRep, 0, sizeof(objPtr->internalRep));
+ if (objc == 2) {
+ const char *s = Tcl_GetStringFromObj(objv[1], &objPtr->length);
+ objPtr->bytes = ckalloc(objPtr->length + 1);
+ memcpy(objPtr->bytes, s, objPtr->length);
+ objPtr->bytes[objPtr->length] = 0;
+ }
+ Tcl_SetObjResult(interp, objPtr);
+ return TCL_OK;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
* TestbytestringObjCmd --
*
* This object-based procedure constructs a string which can
diff --git a/tests/lrange.test b/tests/lrange.test
index 4ba645d..5bb4ee9 100644
--- a/tests/lrange.test
+++ b/tests/lrange.test
@@ -15,6 +15,12 @@ if {[lsearch [namespace children] ::tcltest] == -1} {
package require tcltest
namespace import -force ::tcltest::*
}
+
+::tcltest::loadTestedCommands
+catch [list package require -exact Tcltest [info patchlevel]]
+
+testConstraint testpurebytesobj [llength [info commands testpurebytesobj]]
+
test lrange-1.1 {range of list elements} {
lrange {a b c d} 1 2
@@ -117,6 +123,26 @@ test lrange-3.7b {not compiled on empty not canonical list (with static and dyna
list [$cmd { } 0 1] [$cmd [format %c 32] 0 1] [$cmd [set a { }] 0 1] \
[$cmd { } 0-1 end+1] [$cmd [format %c 32] 0-1 end+1] [$cmd $a 0-1 end+1]
} [lrepeat 6 {}]
+# following 4 tests could cause a segfault on empty non-lists with tclEmptyStringRep
+# (as before the fix [58c46e74b931d3a1]):
+test lrange-3.7a.2 {compiled on empty not list object, 2nd regression test, bug [cc1e91552c]} {
+ list [lrange {} 0 1] [lrange [lindex a -1] 0 1] [lrange [set a {}] 0 1] \
+ [lrange {} 0-1 end+1] [lrange [lindex a -1] 0-1 end+1] [lrange $a 0-1 end+1]
+} [lrepeat 6 {}]
+test lrange-3.7b.2 {not compiled on empty not list object, 2nd regression test, bug [cc1e91552c]} {
+ set cmd lrange
+ list [$cmd {} 0 1] [$cmd [lindex a -1] 0 1] [$cmd [set a {}] 0 1] \
+ [$cmd {} 0-1 end+1] [$cmd [lindex a -1] 0-1 end+1] [$cmd $a 0-1 end+1]
+} [lrepeat 6 {}]
+test lrange-3.7c.2 {compiled on empty pure bytes object, 2nd regression test, bug [cc1e91552c]} {
+ list [lrange [testpurebytesobj] 0 1] [lrange [testpurebytesobj { }] 0 1] [lrange [set a [testpurebytesobj {}]] 0 1] \
+ [lrange [testpurebytesobj] 0-1 end+1] [lrange [testpurebytesobj { }] 0-1 end+1] [lrange $a 0-1 end+1]
+} [lrepeat 6 {}]
+test lrange-3.7d.2 {not compiled on empty pure bytes object, 2nd regression test, bug [cc1e91552c]} {
+ set cmd lrange
+ list [$cmd [testpurebytesobj] 0 1] [$cmd [testpurebytesobj { }] 0 1] [$cmd [set a [testpurebytesobj {}]] 0 1] \
+ [$cmd [testpurebytesobj] 0-1 end+1] [$cmd [testpurebytesobj { }] 0-1 end+1] [$cmd $a 0-1 end+1]
+} [lrepeat 6 {}]
# cleanup