refactor(metadata): generate all metadata in lua

Then we can just load metadata in C as a single msgpack blob. Which also
can be used directly as binarly data, instead of first unpacking all the
functions and ui_events metadata to immediately pack it again, which was
a bit of a silly walk (and one extra usecase of `msgpack_rpc_from_object`
which will get yak shaved in the next PR)
This commit is contained in:
bfredl 2024-02-26 18:00:46 +01:00
parent 07b4b7524f
commit de5cf09cf9
17 changed files with 142 additions and 178 deletions

View File

@ -11,10 +11,6 @@
# include "auto/versiondef_git.h"
#endif
#define NVIM_API_LEVEL @NVIM_API_LEVEL@
#define NVIM_API_LEVEL_COMPAT @NVIM_API_LEVEL_COMPAT@
#define NVIM_API_PRERELEASE @NVIM_API_PRERELEASE@
#define NVIM_VERSION_CFLAGS "${VERSION_STRING}"
#define NVIM_VERSION_BUILD_TYPE "$<CONFIG>"

View File

@ -2,7 +2,7 @@
-- Generator for various vimdoc and Lua type files
local DEP_API_METADATA = 'build/api_metadata.mpack'
local DEP_API_METADATA = 'build/funcs_metadata.mpack'
--- @class vim.api.metadata
--- @field name string

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@ -285,7 +285,8 @@ endif()
# Variables
#-------------------------------------------------------------------------------
set(API_METADATA ${PROJECT_BINARY_DIR}/api_metadata.mpack)
set(FUNCS_METADATA ${PROJECT_BINARY_DIR}/funcs_metadata.mpack)
set(UI_METADATA ${PROJECT_BINARY_DIR}/ui_metadata.mpack)
set(BINARY_LIB_DIR ${PROJECT_BINARY_DIR}/lib/nvim)
set(GENERATED_DIR ${PROJECT_BINARY_DIR}/src/nvim/auto)
set(GENERATED_INCLUDES_DIR ${PROJECT_BINARY_DIR}/include)
@ -317,14 +318,13 @@ set(GENERATED_EVENTS_NAMES_MAP ${GENERATED_DIR}/auevents_name_map.generated.h)
set(GENERATED_EX_CMDS_DEFS ${GENERATED_DIR}/ex_cmds_defs.generated.h)
set(GENERATED_EX_CMDS_ENUM ${GENERATED_INCLUDES_DIR}/ex_cmds_enum.generated.h)
set(GENERATED_FUNCS ${GENERATED_DIR}/funcs.generated.h)
set(GENERATED_FUNCS_METADATA ${GENERATED_DIR}/api/private/funcs_metadata.generated.h)
set(GENERATED_API_METADATA ${GENERATED_DIR}/api/private/api_metadata.generated.h)
set(GENERATED_KEYSETS_DEFS ${GENERATED_DIR}/keysets_defs.generated.h)
set(GENERATED_OPTIONS ${GENERATED_DIR}/options.generated.h)
set(GENERATED_OPTIONS_ENUM ${GENERATED_DIR}/options_enum.generated.h)
set(GENERATED_OPTIONS_MAP ${GENERATED_DIR}/options_map.generated.h)
set(GENERATED_UI_EVENTS_CALL ${GENERATED_DIR}/ui_events_call.generated.h)
set(GENERATED_UI_EVENTS_CLIENT ${GENERATED_DIR}/ui_events_client.generated.h)
set(GENERATED_UI_EVENTS_METADATA ${GENERATED_DIR}/api/private/ui_events_metadata.generated.h)
set(GENERATED_UI_EVENTS_REMOTE ${GENERATED_DIR}/ui_events_remote.generated.h)
set(GENERATED_UNICODE_TABLES ${GENERATED_DIR}/unicode_tables.generated.h)
set(LUA_API_C_BINDINGS ${GENERATED_DIR}/lua_api_c_bindings.generated.c)
@ -493,7 +493,7 @@ add_custom_command(
"${NVIM_VERSION_DEF_H}"
DEPENDS "${PROJECT_BINARY_DIR}/cmake.config/auto/versiondef-$<CONFIG>.h")
set(LUA_GEN ${LUA_GEN_PRG} ${GENERATOR_PRELOAD} ${PROJECT_SOURCE_DIR} $<TARGET_FILE:nlua0>)
set(LUA_GEN ${LUA_GEN_PRG} ${GENERATOR_PRELOAD} ${PROJECT_SOURCE_DIR} $<TARGET_FILE:nlua0> ${PROJECT_BINARY_DIR})
set(LUA_GEN_DEPS ${GENERATOR_PRELOAD} $<TARGET_FILE:nlua0>)
# NVIM_GENERATED_FOR_HEADERS: generated headers to be included in headers
@ -553,14 +553,19 @@ add_custom_command(OUTPUT ${GENERATED_UNICODE_TABLES}
${UNICODE_FILES}
)
set(NVIM_VERSION_LUA ${PROJECT_BINARY_DIR}/nvim_version.lua)
configure_file(${GENERATOR_DIR}/nvim_version.lua.in ${NVIM_VERSION_LUA})
add_custom_command(
OUTPUT ${GENERATED_API_DISPATCH} ${GENERATED_FUNCS_METADATA}
${API_METADATA} ${LUA_API_C_BINDINGS} ${GENERATED_KEYSETS_DEFS}
OUTPUT ${GENERATED_API_DISPATCH} ${GENERATED_API_METADATA}
${FUNCS_METADATA} ${LUA_API_C_BINDINGS} ${GENERATED_KEYSETS_DEFS}
COMMAND ${LUA_GEN} ${API_DISPATCH_GENERATOR}
${GENERATED_API_DISPATCH}
${GENERATED_FUNCS_METADATA} ${API_METADATA}
${GENERATED_API_METADATA} ${FUNCS_METADATA}
${LUA_API_C_BINDINGS}
${GENERATED_KEYSETS_DEFS}
${UI_METADATA}
${NVIM_VERSION_GIT_H}
${API_HEADERS}
DEPENDS
${LUA_GEN_DEPS}
@ -568,6 +573,9 @@ add_custom_command(
${MSGPACK_RPC_HEADERS}
${API_DISPATCH_GENERATOR}
${GENERATOR_C_GRAMMAR}
${UI_METADATA}
${NVIM_VERSION_LUA}
${NVIM_VERSION_GIT_H}
${CMAKE_CURRENT_LIST_DIR}/api/dispatch_deprecated.lua
)
@ -612,13 +620,13 @@ list(APPEND NVIM_GENERATED_SOURCES
add_custom_command(
OUTPUT ${GENERATED_UI_EVENTS_CALL}
${GENERATED_UI_EVENTS_REMOTE}
${GENERATED_UI_EVENTS_METADATA}
${UI_METADATA}
${GENERATED_UI_EVENTS_CLIENT}
COMMAND ${LUA_GEN} ${API_UI_EVENTS_GENERATOR}
${CMAKE_CURRENT_LIST_DIR}/api/ui_events.in.h
${GENERATED_UI_EVENTS_CALL}
${GENERATED_UI_EVENTS_REMOTE}
${GENERATED_UI_EVENTS_METADATA}
${UI_METADATA}
${GENERATED_UI_EVENTS_CLIENT}
DEPENDS
${LUA_GEN_DEPS}
@ -654,8 +662,8 @@ add_custom_command(OUTPUT ${GENERATED_EX_CMDS_ENUM} ${GENERATED_EX_CMDS_DEFS}
)
add_custom_command(OUTPUT ${GENERATED_FUNCS} ${FUNCS_DATA}
COMMAND ${LUA_GEN} ${FUNCS_GENERATOR} ${GENERATED_DIR} ${API_METADATA} ${FUNCS_DATA}
DEPENDS ${LUA_GEN_DEPS} ${FUNCS_GENERATOR} ${CMAKE_CURRENT_LIST_DIR}/eval.lua ${API_METADATA}
COMMAND ${LUA_GEN} ${FUNCS_GENERATOR} ${GENERATED_DIR} ${FUNCS_METADATA} ${FUNCS_DATA}
DEPENDS ${LUA_GEN_DEPS} ${FUNCS_GENERATOR} ${CMAKE_CURRENT_LIST_DIR}/eval.lua ${FUNCS_METADATA}
)
list(APPEND NVIM_GENERATED_FOR_SOURCES
"${GENERATED_FUNCS}")
@ -931,7 +939,7 @@ add_custom_command(
$<TARGET_FILE:nvim_bin> -l ${PROJECT_SOURCE_DIR}/scripts/gen_eval_files.lua
DEPENDS
nvim
${API_METADATA}
${FUNCS_METADATA}
${PROJECT_SOURCE_DIR}/scripts/gen_eval_files.lua
${PROJECT_SOURCE_DIR}/src/nvim/eval.lua
${PROJECT_SOURCE_DIR}/src/nvim/options.lua

View File

@ -38,9 +38,8 @@
#include "nvim/version.h"
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "api/private/funcs_metadata.generated.h"
# include "api/private/api_metadata.generated.h"
# include "api/private/helpers.c.generated.h"
# include "api/private/ui_events_metadata.generated.h"
#endif
/// Start block that may cause Vimscript exceptions while evaluating another code
@ -653,83 +652,26 @@ void api_clear_error(Error *value)
static ArenaMem mem_for_metadata = NULL;
/// @returns a shared value. caller must not modify it!
Dictionary api_metadata(void)
Object api_metadata(void)
{
static Dictionary metadata = ARRAY_DICT_INIT;
static Object metadata = OBJECT_INIT;
if (!metadata.size) {
if (metadata.type == kObjectTypeNil) {
Arena arena = ARENA_EMPTY;
Error err = ERROR_INIT;
metadata = arena_dict(&arena, 6);
PUT_C(metadata, "version", DICTIONARY_OBJ(version_dict(&arena)));
PUT_C(metadata, "functions",
unpack((char *)funcs_metadata, sizeof(funcs_metadata), &arena, &err));
if (ERROR_SET(&err)) {
metadata = unpack((char *)packed_api_metadata, sizeof(packed_api_metadata), &arena, &err);
if (ERROR_SET(&err) || metadata.type != kObjectTypeDictionary) {
abort();
}
PUT_C(metadata, "ui_events",
unpack((char *)ui_events_metadata, sizeof(ui_events_metadata), &arena, &err));
if (ERROR_SET(&err)) {
abort();
}
PUT_C(metadata, "ui_options", ARRAY_OBJ(ui_options_metadata(&arena)));
PUT_C(metadata, "error_types", DICTIONARY_OBJ(error_type_metadata(&arena)));
PUT_C(metadata, "types", DICTIONARY_OBJ(type_metadata(&arena)));
mem_for_metadata = arena_finish(&arena);
}
return metadata;
}
static Array ui_options_metadata(Arena *arena)
String api_metadata_raw(void)
{
Array ui_options = arena_array(arena, kUIExtCount + 1);
ADD_C(ui_options, CSTR_AS_OBJ("rgb"));
for (UIExtension i = 0; i < kUIExtCount; i++) {
if (ui_ext_names[i][0] != '_') {
ADD_C(ui_options, CSTR_AS_OBJ(ui_ext_names[i]));
}
}
return ui_options;
}
static Dictionary error_type_metadata(Arena *arena)
{
Dictionary types = arena_dict(arena, 2);
Dictionary exception_metadata = arena_dict(arena, 1);
PUT_C(exception_metadata, "id", INTEGER_OBJ(kErrorTypeException));
Dictionary validation_metadata = arena_dict(arena, 1);
PUT_C(validation_metadata, "id", INTEGER_OBJ(kErrorTypeValidation));
PUT_C(types, "Exception", DICTIONARY_OBJ(exception_metadata));
PUT_C(types, "Validation", DICTIONARY_OBJ(validation_metadata));
return types;
}
static Dictionary type_metadata(Arena *arena)
{
Dictionary types = arena_dict(arena, 3);
Dictionary buffer_metadata = arena_dict(arena, 2);
PUT_C(buffer_metadata, "id", INTEGER_OBJ(kObjectTypeBuffer - EXT_OBJECT_TYPE_SHIFT));
PUT_C(buffer_metadata, "prefix", CSTR_AS_OBJ("nvim_buf_"));
Dictionary window_metadata = arena_dict(arena, 2);
PUT_C(window_metadata, "id", INTEGER_OBJ(kObjectTypeWindow - EXT_OBJECT_TYPE_SHIFT));
PUT_C(window_metadata, "prefix", CSTR_AS_OBJ("nvim_win_"));
Dictionary tabpage_metadata = arena_dict(arena, 2);
PUT_C(tabpage_metadata, "id", INTEGER_OBJ(kObjectTypeTabpage - EXT_OBJECT_TYPE_SHIFT));
PUT_C(tabpage_metadata, "prefix", CSTR_AS_OBJ("nvim_tabpage_"));
PUT_C(types, "Buffer", DICTIONARY_OBJ(buffer_metadata));
PUT_C(types, "Window", DICTIONARY_OBJ(window_metadata));
PUT_C(types, "Tabpage", DICTIONARY_OBJ(tabpage_metadata));
return types;
return cbuf_as_string((char *)packed_api_metadata, sizeof(packed_api_metadata));
}
// all the copy_[object] functions allow arena=NULL,

View File

@ -7,6 +7,20 @@
#include "nvim/types_defs.h" // IWYU pragma: keep
#include "nvim/ui_defs.h" // IWYU pragma: keep
/// Keep in sync with UIExtension in ui_defs.h
EXTERN const char *ui_ext_names[] INIT( = {
"ext_cmdline",
"ext_popupmenu",
"ext_tabline",
"ext_wildmenu",
"ext_messages",
"ext_linegrid",
"ext_multigrid",
"ext_hlstate",
"ext_termcolors",
"_debug_float",
});
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "api/ui.h.generated.h"
# include "ui_events_remote.h.generated.h"

View File

@ -1529,7 +1529,7 @@ Array nvim_get_api_info(uint64_t channel_id, Arena *arena)
assert(channel_id <= INT64_MAX);
ADD_C(rv, INTEGER_OBJ((int64_t)channel_id));
ADD_C(rv, DICTIONARY_OBJ(api_metadata()));
ADD_C(rv, api_metadata());
return rv;
}

View File

@ -442,8 +442,7 @@ static void f_and(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
/// "api_info()" function
static void f_api_info(typval_T *argvars, typval_T *rettv, EvalFuncData fptr)
{
Dictionary metadata = api_metadata();
object_to_vim(DICTIONARY_OBJ(metadata), rettv, NULL);
object_to_vim(api_metadata(), rettv, NULL);
}
/// "atan2()" function

View File

@ -2,15 +2,18 @@ local mpack = vim.mpack
local hashy = require 'generators.hashy'
assert(#arg >= 5)
local pre_args = 7
assert(#arg >= pre_args)
-- output h file with generated dispatch functions (dispatch_wrappers.generated.h)
local dispatch_outputf = arg[1]
-- output h file with packed metadata (funcs_metadata.generated.h)
local funcs_metadata_outputf = arg[2]
-- output h file with packed metadata (api_metadata.generated.h)
local api_metadata_outputf = arg[2]
-- output metadata mpack file, for use by other build scripts (api_metadata.mpack)
local mpack_outputf = arg[3]
local lua_c_bindings_outputf = arg[4] -- lua_api_c_bindings.generated.c
local keysets_outputf = arg[5] -- keysets_defs.generated.h
local ui_metadata_inputf = arg[6] -- ui events metadata
local git_version_inputf = arg[7] -- git version header
local functions = {}
@ -96,8 +99,10 @@ local function add_keyset(val)
})
end
local ui_options_text = nil
-- read each input file, parse and append to the api metadata
for i = 6, #arg do
for i = pre_args + 1, #arg do
local full_path = arg[i]
local parts = {}
for part in string.gmatch(full_path, '[^/]+') do
@ -107,17 +112,18 @@ for i = 6, #arg do
local input = assert(io.open(full_path, 'rb'))
local tmp = c_grammar.grammar:match(input:read('*all'))
local text = input:read('*all')
local tmp = c_grammar.grammar:match(text)
for j = 1, #tmp do
local val = tmp[j]
if val[1] ~= 'empty' then
if val.keyset_name then
add_keyset(val)
else
add_function(val)
end
if val.keyset_name then
add_keyset(val)
elseif val.name then
add_function(val)
end
end
ui_options_text = ui_options_text or string.match(text, 'ui_ext_names%[][^{]+{([^}]+)}')
input:close()
end
@ -218,13 +224,71 @@ for _, f in ipairs(functions) do
end
end
local ui_options = { 'rgb' }
for x in string.gmatch(ui_options_text, '"([a-z][a-z_]+)"') do
table.insert(ui_options, x)
end
local version = require 'nvim_version'
local git_version = io.open(git_version_inputf):read '*a'
local version_build = string.match(git_version, '#define NVIM_VERSION_BUILD "([^"]+)"') or vim.NIL
-- serialize the API metadata using msgpack and embed into the resulting
-- binary for easy querying by clients
local funcs_metadata_output = assert(io.open(funcs_metadata_outputf, 'wb'))
local packed = mpack.encode(exported_functions)
local api_metadata_output = assert(io.open(api_metadata_outputf, 'wb'))
local pieces = {}
-- Naively using mpack.encode({foo=x, bar=y}) will make the build
-- "non-reproducible". Emit maps directly as FIXDICT(2) "foo" x "bar" y instead
local function fixdict(num)
if num > 15 then
error 'implement more dict codes'
end
table.insert(pieces, string.char(128 + num))
end
local function put(item, item2)
table.insert(pieces, mpack.encode(item))
if item2 ~= nil then
table.insert(pieces, mpack.encode(item2))
end
end
fixdict(6)
put('version')
fixdict(1 + #version)
for _, item in ipairs(version) do
-- NB: all items are mandatory. But any error will be less confusing
-- with placholder vim.NIL (than invalid mpack data)
put(item[1], item[2] or vim.NIL)
end
put('build', version_build)
put('functions', exported_functions)
put('ui_events')
table.insert(pieces, io.open(ui_metadata_inputf, 'rb'):read('*all'))
put('ui_options', ui_options)
put('error_types')
fixdict(2)
put('Exception', { id = 0 })
put('Validation', { id = 1 })
put('types')
local types =
{ { 'Buffer', 'nvim_buf_' }, { 'Window', 'nvim_win_' }, { 'Tabpage', 'nvim_tabpage_' } }
fixdict(#types)
for i, item in ipairs(types) do
put(item[1])
fixdict(2)
put('id', i - 1)
put('prefix', item[2])
end
local packed = table.concat(pieces)
local dump_bin_array = require('generators.dump_bin_array')
dump_bin_array(funcs_metadata_output, 'funcs_metadata', packed)
funcs_metadata_output:close()
dump_bin_array(api_metadata_output, 'packed_api_metadata', packed)
api_metadata_output:close()
-- start building the dispatch wrapper output
local output = assert(io.open(dispatch_outputf, 'wb'))

View File

@ -204,7 +204,5 @@ for _, ev in ipairs(events) do
end
end
local packed = mpack.encode(exported_events)
local dump_bin_array = require('generators.dump_bin_array')
dump_bin_array(metadata_output, 'ui_events_metadata', packed)
metadata_output:write(mpack.encode(exported_events))
metadata_output:close()

View File

@ -0,0 +1,9 @@
return {
{"major", ${NVIM_VERSION_MAJOR}},
{"minor", ${NVIM_VERSION_MINOR}},
{"patch", ${NVIM_VERSION_PATCH}},
{"prerelease", "$NVIM_VERSION_PRERELEASE" ~= ""},
{"api_level", ${NVIM_API_LEVEL}},
{"api_compatible", ${NVIM_API_LEVEL_COMPAT}},
{"api_prerelease", ${NVIM_API_PRERELEASE}},
}

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@ -1,10 +1,13 @@
local srcdir = table.remove(arg, 1)
local nlualib = table.remove(arg, 1)
local gendir = table.remove(arg, 1)
package.path = srcdir .. '/src/nvim/?.lua;' .. srcdir .. '/runtime/lua/?.lua;' .. package.path
package.path = gendir .. '/?.lua;' .. package.path
_G.vim = require 'vim.shared'
_G.vim.inspect = require 'vim.inspect'
package.cpath = package.cpath .. ';' .. nlualib
require 'nlua0'
vim.NIL = vim.mpack.NIL -- WOW BOB WOW
arg[0] = table.remove(arg, 1)
return loadfile(arg[0])()

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@ -15,6 +15,7 @@
#include "nvim/api/extmark.h"
#include "nvim/api/private/defs.h"
#include "nvim/api/private/helpers.h"
#include "nvim/api/ui.h"
#include "nvim/ascii_defs.h"
#include "nvim/buffer_defs.h"
#include "nvim/change.h"

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@ -1103,20 +1103,16 @@ static void command_line_scan(mparm_T *parmp)
FileDescriptor fp;
const int fof_ret = file_open_fd(&fp, STDOUT_FILENO,
kFileWriteOnly);
msgpack_packer *p = msgpack_packer_new(&fp, msgpack_file_write);
if (fof_ret != 0) {
semsg(_("E5421: Failed to open stdin: %s"), os_strerror(fof_ret));
}
if (p == NULL) {
emsg(_(e_outofmem));
String data = api_metadata_raw();
const ptrdiff_t written_bytes = file_write(&fp, data.data, data.size);
if (written_bytes < 0) {
msgpack_file_write_error((int)written_bytes);
}
Object md = DICTIONARY_OBJ(api_metadata());
msgpack_rpc_from_object(&md, p);
msgpack_packer_free(p);
const int ff_ret = file_flush(&fp);
if (ff_ret < 0) {
msgpack_file_write_error(ff_ret);

View File

@ -366,24 +366,6 @@ ptrdiff_t file_skip(FileDescriptor *const fp, const size_t size)
return (ptrdiff_t)read_bytes;
}
/// Msgpack callback for writing to a file
///
/// @param data File to write to.
/// @param[in] buf Data to write.
/// @param[in] len Length of the data to write.
///
/// @return 0 in case of success, -1 in case of error.
int msgpack_file_write(void *data, const char *buf, size_t len)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_WARN_UNUSED_RESULT
{
assert(len < PTRDIFF_MAX);
const ptrdiff_t written_bytes = file_write((FileDescriptor *)data, buf, len);
if (written_bytes < 0) {
return msgpack_file_write_error((int)written_bytes);
}
return 0;
}
/// Print error which occurs when failing to write msgpack data
///
/// @param[in] error Error code of the error to print.

View File

@ -10,20 +10,6 @@
#include "nvim/types_defs.h" // IWYU pragma: keep
#include "nvim/ui_defs.h" // IWYU pragma: keep
/// Keep in sync with UIExtension in ui_defs.h
EXTERN const char *ui_ext_names[] INIT( = {
"ext_cmdline",
"ext_popupmenu",
"ext_tabline",
"ext_wildmenu",
"ext_messages",
"ext_linegrid",
"ext_multigrid",
"ext_hlstate",
"ext_termcolors",
"_debug_float",
});
// uncrustify:off
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "ui.h.generated.h"

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@ -2550,24 +2550,6 @@ bool has_vim_patch(int n)
return false;
}
Dictionary version_dict(Arena *arena)
{
Dictionary d = arena_dict(arena, 8);
PUT_C(d, "major", INTEGER_OBJ(NVIM_VERSION_MAJOR));
PUT_C(d, "minor", INTEGER_OBJ(NVIM_VERSION_MINOR));
PUT_C(d, "patch", INTEGER_OBJ(NVIM_VERSION_PATCH));
#ifndef NVIM_VERSION_BUILD
PUT_C(d, "build", NIL);
#else
PUT_C(d, "build", STATIC_CSTR_AS_OBJ(NVIM_VERSION_BUILD));
#endif
PUT_C(d, "prerelease", BOOLEAN_OBJ(NVIM_VERSION_PRERELEASE[0] != '\0'));
PUT_C(d, "api_level", INTEGER_OBJ(NVIM_API_LEVEL));
PUT_C(d, "api_compatible", INTEGER_OBJ(NVIM_API_LEVEL_COMPAT));
PUT_C(d, "api_prerelease", BOOLEAN_OBJ(NVIM_API_PRERELEASE));
return d;
}
void ex_version(exarg_T *eap)
{
// Ignore a ":version 9.99" command.

View File

@ -65,10 +65,6 @@ local function file_write(fp, buf)
return m.file_write(fp, buf, #buf)
end
local function msgpack_file_write(fp, buf)
return m.msgpack_file_write(fp, buf, #buf)
end
local function file_read(fp, size)
local buf = nil
if size == nil then
@ -391,18 +387,6 @@ describe('file_write', function()
end)
end)
describe('msgpack_file_write', function()
itp('can write the whole file at once', function()
local err, fp = file_open(filec, m.kFileCreateOnly, 384)
eq(0, err)
eq(true, fp.wr)
local wr = msgpack_file_write(fp, fcontents)
eq(0, wr)
eq(0, m.file_close(fp, false))
eq(fcontents, io.open(filec):read('*a'))
end)
end)
describe('file_skip', function()
itp('can skip 3 bytes', function()
local err, fp = file_open(file1, 0, 384)