vim-patch:8.2.1047: Vim9: script cannot use line continuation like :def function

Problem:    Vim9: script cannot use line continuation like in a :def function.
Solution:   Pass the getline function pointer to the eval() functions.  Use it
            for addition and multiplication operators.

https://github.com/vim/vim/commit/5409f5d8c95007216ae1190565a7a8ee9ebd7100

Omit source_nextline() and eval_next_non_blank(): Vim9 script only.

N/A patches for version.c:

vim-patch:8.2.1048: build failure without the eval feature

Problem:    Build failure without the eval feature.
Solution:   Add dummy typedef.

https://github.com/vim/vim/commit/9d40c63c7dc8c3eb3886c58dcd334bc7f37eceba

vim-patch:8.2.1052: build failure with older compilers

Problem:    Build failure with older compilers.
Solution:   Move declaration to start of block.

https://github.com/vim/vim/commit/7acde51832f383f9a6d2e740cd0420b433ea841a

Co-authored-by: Bram Moolenaar <Bram@vim.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/src/nvim/ex_eval.c b/src/nvim/ex_eval.c
index 6772b78c33..33b315c179 100644
--- a/src/nvim/ex_eval.c
+++ b/src/nvim/ex_eval.c
@@ -792,8 +792,11 @@ void report_discard_pending(int pending, void *value)
 void ex_eval(exarg_T *eap)
 {
   typval_T tv;
-
-  if (eval0(eap->arg, &tv, &eap->nextcmd, eap->skip ? 0 : EVAL_EVALUATE) == OK) {
+  evalarg_T evalarg = {
+    .eval_flags = eap->skip ? 0 : EVAL_EVALUATE,
+    .eval_cookie = eap->getline == getsourceline ? eap->cookie : NULL,
+  };
+  if (eval0(eap->arg, &tv, &eap->nextcmd, &evalarg) == OK) {
     tv_clear(&tv);
   }
 }