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fix(v:lua): fix emsg when calling v:lua directly

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v:lua expressions are represented using vvlua_partial. As v:lua isn't
intended to be called directly, it's given an empty pt_name.

Because of this, calling v:lua directly like "v:lua()" will cause "E117:
Unknown function: ", with an empty name.

Instead, have call_func() show the name "v:lua" in the emsg.
This commit is contained in:
Sean Dewar 2021-08-12 17:19:05 +01:00
parent 5503d8e28b
commit da9005af79
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GPG Key ID: 08CC2C83AD41B581
2 changed files with 5 additions and 0 deletions
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4
src/nvim/eval/userfunc.c
View File

@ -1516,6 +1516,10 @@ call_func(
if (len > 0) {
error = ERROR_NONE;
nlua_typval_call((const char *)funcname, len, argvars, argcount, rettv);
} else {
// v:lua was called directly; show its name in the emsg
XFREE_CLEAR(name);
funcname = (const char_u *)"v:lua";
}
} else if (fp != NULL || !builtin_function((const char *)rfname, -1)) {
// User defined function.

1
test/functional/lua/luaeval_spec.lua
View File

@ -518,6 +518,7 @@ describe('v:lua', function()
eq("Vim:E15: Invalid expression: v:['lua'].foo()", pcall_err(eval, "v:['lua'].foo()"))
eq("Vim(call):E461: Illegal variable name: v:['lua']", pcall_err(command, "call v:['lua'].baar()"))
eq("Vim:E117: Unknown function: v:lua", pcall_err(eval, "v:lua()"))
eq("Vim(let):E46: Cannot change read-only variable \"v:['lua']\"", pcall_err(command, "let v:['lua'] = 'xx'"))
eq("Vim(let):E46: Cannot change read-only variable \"v:lua\"", pcall_err(command, "let v:lua = 'xx'"))