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Added as incompatibility, in the manual, the extra return of 'io.lines'.
This commit is contained in:
Roberto Ierusalimschy 2020-06-18 11:07:27 -03:00
parent a304199836
commit c33b1728ae
2 changed files with 13 additions and 2 deletions
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4
lundump.c
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@ -26,7 +26,7 @@
#if !defined(luai_verifycode) #if !defined(luai_verifycode)
#define luai_verifycode(L,b,f) /* empty */ #define luai_verifycode(L,f) /* empty */
#endif #endif
@ -317,7 +317,7 @@ LClosure *luaU_undump(lua_State *L, ZIO *Z, const char *name) {
luaC_objbarrier(L, cl, cl->p); luaC_objbarrier(L, cl, cl->p);
loadFunction(&S, cl->p, NULL); loadFunction(&S, cl->p, NULL);
lua_assert(cl->nupvalues == cl->p->sizeupvalues); lua_assert(cl->nupvalues == cl->p->sizeupvalues);
luai_verifycode(L, buff, cl->p); luai_verifycode(L, cl->p);
return cl; return cl;
} }

11
manual/manual.of
View File

@ -9116,6 +9116,17 @@ of the function @Lid{collectgarbage} are deprecated.
You should use the new option @St{incremental} to set them. You should use the new option @St{incremental} to set them.
} }
@item{
The function @Lid{io.lines} now returns four values,
instead of just one.
That can be a problem when it is used as the sole
argument to another function that has optional parameters,
such as in @T{load(io.lines(filename, "L"))}.
To fix that issue,
you can wrap the call into parentheses,
to adjust its number of results to one.
}
} }
} }