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eval: Add eval_call_provider/eval_has_provider functions

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These use autoloaded vimscript to replace the provider_call/provider_has
functions, moving the implementation of providers to pure vimscript(we lose
nothing since vimscript can also call msgpack-rpc functions).

When calling the rpcrequest function from a provider, temporarily switch to the
caller scope. This is required for compatibility with legacy plugins, because
they may depend on scope information that changes when "leaving" the C stack to
enter the vimscript stack.
This commit is contained in:
Thiago de Arruda
2014-11-11 09:54:27 -03:00
parent a67fd6f213
commit 268b2eff4a
2 changed files with 128 additions and 1 deletions
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10
src/nvim/globals.h
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@@ -360,6 +360,16 @@ EXTERN int garbage_collect_at_exit INIT(= FALSE);
/* ID of script being sourced or was sourced to define the current function. */
EXTERN scid_T current_SID INIT(= 0);
// Scope information for the code that indirectly triggered the current
// provider function call
EXTERN struct caller_scope {
scid_T SID;
uint8_t *sourcing_name, *autocmd_fname, *autocmd_match;
linenr_T sourcing_lnum;
int autocmd_fname_full, autocmd_bufnr;
void *funccalp;
} provider_caller_scope;
EXTERN int provider_call_nesting INIT(= 0);
/* Magic number used for hashitem "hi_key" value indicating a deleted item.
* Only the address is used. */