diff options
| author | Bram Moolenaar <Bram@vim.org> | 2020-03-30 21:05:45 +0200 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2020-03-30 21:05:45 +0200 |
| commit | d25ec2cfa0c25c3b00b7f8963b8aea799df1f20a (patch) | |
| tree | e3cfefe979dd73574dec6f8edc5388b6afba0a5e /src/vim9compile.c | |
| parent | ca68ae13114619df3e4c195b41ad0575516f5ff6 (diff) | |
patch 8.2.0483: Vim9: "let x = x + 1" does not give an errorv8.2.0483
Problem: Vim9: "let x = x + 1" does not give an error.
Solution: Hide the variable when compiling the expression.
Diffstat (limited to 'src/vim9compile.c')
| -rw-r--r-- | src/vim9compile.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/vim9compile.c b/src/vim9compile.c index 9d66e5ed15..1e8cd03d02 100644 --- a/src/vim9compile.c +++ b/src/vim9compile.c @@ -3685,6 +3685,8 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx) } else if (oplen > 0) { + int r; + // for "+=", "*=", "..=" etc. first load the current value if (*op != '=') { @@ -3717,10 +3719,16 @@ compile_assignment(char_u *arg, exarg_T *eap, cmdidx_T cmdidx, cctx_T *cctx) } } - // compile the expression + // Compile the expression. Temporarily hide the new local variable + // here, it is not available to this expression. + if (idx >= 0) + --cctx->ctx_locals.ga_len; instr_count = instr->ga_len; p = skipwhite(p + oplen); - if (compile_expr1(&p, cctx) == FAIL) + r = compile_expr1(&p, cctx); + if (idx >= 0) + ++cctx->ctx_locals.ga_len; + if (r == FAIL) goto theend; if (idx >= 0 && (is_decl || !has_type)) |