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provider: decide status by g:loaded_xx_provider

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This commit is contained in:
Justin M. Keyes
2019-08-04 03:54:06 +02:00
parent 2cfe4748e5
commit 66938b928c
11 changed files with 78 additions and 77 deletions
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36
src/nvim/eval.c
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@@ -23968,27 +23968,35 @@ typval_T eval_call_provider(char *provider, char *method, list_T *arguments)
return rettv;
}
/// Check if a named provider is enabled
/// Checks if a named provider is enabled.
bool eval_has_provider(const char *provider)
{
char enabled_varname[256];
int enabled_varname_len = snprintf(enabled_varname, sizeof(enabled_varname),
"provider#%s#enabled", provider);
char buf[256];
int len;
typval_T tv;
if (get_var_tv(enabled_varname, enabled_varname_len, &tv,
NULL, false, false) == FAIL) {
char call_varname[256];
snprintf(call_varname, sizeof(call_varname), "provider#%s#Call", provider);
int has_call = !!find_func((char_u *)call_varname);
if (has_call && p_lpl) {
emsgf("Provider '%s' failed to set %s", provider, enabled_varname);
// Get the g:loaded_xx_provider variable.
len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", provider);
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
// Trigger autoload once.
len = snprintf(buf, sizeof(buf), "provider#%s#bogus", provider);
script_autoload(buf, len, false);
// Retry the (non-autoload-style) variable.
len = snprintf(buf, sizeof(buf), "g:loaded_%s_provider", provider);
if (get_var_tv(buf, len, &tv, NULL, false, true) == FAIL) {
// Show a hint if Call() is defined but g:loaded_xx_provider is missing.
snprintf(buf, sizeof(buf), "provider#%s#Call", provider);
bool has_call = !!find_func((char_u *)buf);
if (has_call && p_lpl) {
emsgf("provider: %s: missing required variable g:loaded_%s_provider",
provider, provider);
}
return false;
}
return false;
}
return (tv.v_type == VAR_NUMBER) ? tv.vval.v_number != 0: true;
return (tv.v_type == VAR_NUMBER) ? !!tv.vval.v_number : false;
}
/// Writes "<sourcing_name>:<sourcing_lnum>" to `buf[bufsize]`.