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[1.0 release prep] Block namespace defs in ksh functions

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In 93v-/ksh2020, namespace defs in any function are a syntax error.
This commit blocks namespace defs for ksh functions only, at the
execution level. This follows some of AT&T original intention while
working around some of the known bugs with namespaces.

Related: https://github.com/ksh93/ksh/issues/325
This commit is contained in:
Martijn Dekker 2021-11-24 06:59:39 +01:00
parent e3d91ffa90
commit 40de1e92b0
1 changed files with 5 additions and 0 deletions
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5
src/cmd/ksh93/sh/xec.c
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@ -2481,6 +2481,11 @@ int sh_exec(register const Shnode_t *t, int flags)
errormsg(SH_DICT,ERROR_exit(1),e_ident,fname); errormsg(SH_DICT,ERROR_exit(1),e_ident,fname);
UNREACHABLE(); UNREACHABLE();
} }
if(shp->st.real_fun)
{
error(ERROR_exit(3),"namespaces cannot be defined in a ksh function scope");
UNREACHABLE();
}
sfputc(stkp,'.'); sfputc(stkp,'.');
sfputr(stkp,fname,0); sfputr(stkp,fname,0);
np = nv_open(stkptr(stkp,offset),shp->var_tree,flags); np = nv_open(stkptr(stkp,offset),shp->var_tree,flags);