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/*
2022-07-22
The author disclaims copyright to this source code. In place of a
legal notice, here is a blessing:
* May you do good and not evil.
* May you find forgiveness for yourself and forgive others.
* May you share freely, never taking more than you give.
***********************************************************************
This file glues together disparate pieces of JS which are loaded in
previous steps of the sqlite3-api.js bootstrapping process:
sqlite3-api-prologue.js, whwasmutil.js, and jaccwabyt.js. It
initializes the main API pieces so that the downstream components
(e.g. sqlite3-api-oo1.js) have all of the infrastructure that they
need.
*/
globalThis.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
'use strict';
const toss = (...args)=>{throw new Error(args.join(' '))};
const capi = sqlite3.capi, wasm = sqlite3.wasm, util = sqlite3.util;
globalThis.WhWasmUtilInstaller(wasm);
delete globalThis.WhWasmUtilInstaller;
if(0){
/**
Please keep this block around as a maintenance reminder
that we cannot rely on this type of check.
This block fails on Safari, per a report at
https://sqlite.org/forum/forumpost/e5b20e1feb.
It turns out that what Safari serves from the indirect function
table (e.g. wasm.functionEntry(X)) is anonymous functions which
wrap the WASM functions, rather than returning the WASM
functions themselves. That means comparison of such functions
is useless for determining whether or not we have a specific
function from wasm.exports. i.e. if function X is indirection
function table entry N then wasm.exports.X is not equal to
wasm.functionEntry(N) in Safari, despite being so in the other
browsers.
*/
/**
Find a mapping for SQLITE_WASM_DEALLOC, which the API
guarantees is a WASM pointer to the same underlying function as
wasm.dealloc() (noting that wasm.dealloc() is permitted to be a
JS wrapper around the WASM function). There is unfortunately no
O(1) algorithm for finding this pointer: we have to walk the
WASM indirect function table to find it. However, experience
indicates that that particular function is always very close to
the front of the table (it's been entry #3 in all relevant
tests).
*/
const dealloc = wasm.exports[sqlite3.config.deallocExportName];
const nFunc = wasm.functionTable().length;
let i;
for(i = 0; i < nFunc; ++i){
const e = wasm.functionEntry(i);
if(dealloc === e){
capi.SQLITE_WASM_DEALLOC = i;
break;
}
}
if(dealloc !== wasm.functionEntry(capi.SQLITE_WASM_DEALLOC)){
toss("Internal error: cannot find function pointer for SQLITE_WASM_DEALLOC.");
}
}
/**
Signatures for the WASM-exported C-side functions. Each entry
is an array with 2+ elements:
[ "c-side name",
"result type" (wasm.xWrap() syntax),
[arg types in xWrap() syntax]
// ^^^ this needn't strictly be an array: it can be subsequent
// elements instead: [x,y,z] is equivalent to x,y,z
]
Support for the API-specific data types in the result/argument
type strings gets plugged in at a later phase in the API
initialization process.
*/
const bindingSignatures = {
core: [
// Please keep these sorted by function name!
["sqlite3_aggregate_context","void*", "sqlite3_context*", "int"],
/* sqlite3_auto_extension() has a hand-written binding. */
/* sqlite3_bind_blob() and sqlite3_bind_text() have hand-written
bindings to permit more flexible inputs. */
["sqlite3_bind_double","int", "sqlite3_stmt*", "int", "f64"],
["sqlite3_bind_int","int", "sqlite3_stmt*", "int", "int"],
["sqlite3_bind_null",undefined, "sqlite3_stmt*", "int"],
["sqlite3_bind_parameter_count", "int", "sqlite3_stmt*"],
["sqlite3_bind_parameter_index","int", "sqlite3_stmt*", "string"],
["sqlite3_bind_parameter_name", "string", "sqlite3_stmt*", "int"],
["sqlite3_bind_pointer", "int",
"sqlite3_stmt*", "int", "*", "string:static", "*"],
/* sqlite_bind_text() is hand-written */
["sqlite3_bind_zeroblob", "int", "sqlite3_stmt*", "int", "int"],
["sqlite3_busy_handler","int", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
signature: 'i(pi)',
contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
}),
"*"
]],
["sqlite3_busy_timeout","int", "sqlite3*", "int"],
/* sqlite3_cancel_auto_extension() has a hand-written binding. */
/* sqlite3_close_v2() is implemented by hand to perform some
extra work. */
["sqlite3_changes", "int", "sqlite3*"],
["sqlite3_clear_bindings","int", "sqlite3_stmt*"],
["sqlite3_collation_needed", "int", "sqlite3*", "*", "*"/*=>v(ppis)*/],
["sqlite3_column_blob","*", "sqlite3_stmt*", "int"],
["sqlite3_column_bytes","int", "sqlite3_stmt*", "int"],
["sqlite3_column_count", "int", "sqlite3_stmt*"],
["sqlite3_column_decltype", "string", "sqlite3_stmt*", "int"],
["sqlite3_column_double","f64", "sqlite3_stmt*", "int"],
["sqlite3_column_int","int", "sqlite3_stmt*", "int"],
["sqlite3_column_name","string", "sqlite3_stmt*", "int"],
//#define proxy-text-apis 1
//#if not proxy-text-apis
/* Search this file for tag:proxy-text-apis to see what this is about. */
["sqlite3_column_text","string", "sqlite3_stmt*", "int"],
//#/if
["sqlite3_column_type","int", "sqlite3_stmt*", "int"],
["sqlite3_column_value","sqlite3_value*", "sqlite3_stmt*", "int"],
["sqlite3_commit_hook", "void*", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
name: 'sqlite3_commit_hook',
signature: 'i(p)',
contextKey: (argv)=>argv[0/* sqlite3* */]
}),
'*'
]],
["sqlite3_compileoption_get", "string", "int"],
["sqlite3_compileoption_used", "int", "string"],
["sqlite3_complete", "int", "string:flexible"],
["sqlite3_context_db_handle", "sqlite3*", "sqlite3_context*"],
/* sqlite3_create_collation() and sqlite3_create_collation_v2()
use hand-written bindings to simplify passing of the callback
function. */
/* sqlite3_create_function(), sqlite3_create_function_v2(), and
sqlite3_create_window_function() use hand-written bindings to
simplify handling of their function-type arguments. */
["sqlite3_data_count", "int", "sqlite3_stmt*"],
["sqlite3_db_filename", "string", "sqlite3*", "string"],
["sqlite3_db_handle", "sqlite3*", "sqlite3_stmt*"],
["sqlite3_db_name", "string", "sqlite3*", "int"],
["sqlite3_db_readonly", "int", "sqlite3*", "string"],
["sqlite3_db_status", "int", "sqlite3*", "int", "*", "*", "int"],
["sqlite3_errcode", "int", "sqlite3*"],
["sqlite3_errmsg", "string", "sqlite3*"],
["sqlite3_error_offset", "int", "sqlite3*"],
["sqlite3_errstr", "string", "int"],
["sqlite3_exec", "int", [
"sqlite3*", "string:flexible",
new wasm.xWrap.FuncPtrAdapter({
signature: 'i(pipp)',
bindScope: 'transient',
callProxy: (callback)=>{
let aNames;
return (pVoid, nCols, pColVals, pColNames)=>{
try {
const aVals = wasm.cArgvToJs(nCols, pColVals);
if(!aNames) aNames = wasm.cArgvToJs(nCols, pColNames);
return callback(aVals, aNames) | 0;
}catch(e){
/* If we set the db error state here, the higher-level
exec() call replaces it with its own, so we have no way
of reporting the exception message except the console. We
must not propagate exceptions through the C API. Though
we make an effort to report OOM here, sqlite3_exec()
translates that into SQLITE_ABORT as well. */
return e.resultCode || capi.SQLITE_ERROR;
}
}
}
}),
"*", "**"
]],
["sqlite3_expanded_sql", "string", "sqlite3_stmt*"],
["sqlite3_extended_errcode", "int", "sqlite3*"],
["sqlite3_extended_result_codes", "int", "sqlite3*", "int"],
["sqlite3_file_control", "int", "sqlite3*", "string", "int", "*"],
["sqlite3_finalize", "int", "sqlite3_stmt*"],
["sqlite3_free", undefined,"*"],
["sqlite3_get_autocommit", "int", "sqlite3*"],
["sqlite3_get_auxdata", "*", "sqlite3_context*", "int"],
["sqlite3_initialize", undefined],
["sqlite3_interrupt", undefined, "sqlite3*"],
["sqlite3_is_interrupted", "int", "sqlite3*"],
["sqlite3_keyword_count", "int"],
["sqlite3_keyword_name", "int", ["int", "**", "*"]],
["sqlite3_keyword_check", "int", ["string", "int"]],
["sqlite3_libversion", "string"],
["sqlite3_libversion_number", "int"],
["sqlite3_limit", "int", ["sqlite3*", "int", "int"]],
["sqlite3_malloc", "*","int"],
["sqlite3_next_stmt", "sqlite3_stmt*", ["sqlite3*","sqlite3_stmt*"]],
["sqlite3_open", "int", "string", "*"],
["sqlite3_open_v2", "int", "string", "*", "int", "string"],
/* sqlite3_prepare_v2() and sqlite3_prepare_v3() are handled
separately due to us requiring two different sets of semantics
for those, depending on how their SQL argument is provided. */
/* sqlite3_randomness() uses a hand-written wrapper to extend
the range of supported argument types. */
["sqlite3_realloc", "*","*","int"],
["sqlite3_reset", "int", "sqlite3_stmt*"],
/* sqlite3_reset_auto_extension() has a hand-written binding. */
["sqlite3_result_blob", undefined, "sqlite3_context*", "*", "int", "*"],
["sqlite3_result_double", undefined, "sqlite3_context*", "f64"],
["sqlite3_result_error", undefined, "sqlite3_context*", "string", "int"],
["sqlite3_result_error_code", undefined, "sqlite3_context*", "int"],
["sqlite3_result_error_nomem", undefined, "sqlite3_context*"],
["sqlite3_result_error_toobig", undefined, "sqlite3_context*"],
["sqlite3_result_int", undefined, "sqlite3_context*", "int"],
["sqlite3_result_null", undefined, "sqlite3_context*"],
["sqlite3_result_pointer", undefined,
"sqlite3_context*", "*", "string:static", "*"],
["sqlite3_result_subtype", undefined, "sqlite3_value*", "int"],
["sqlite3_result_text", undefined, "sqlite3_context*", "string", "int", "*"],
["sqlite3_result_zeroblob", undefined, "sqlite3_context*", "int"],
["sqlite3_rollback_hook", "void*", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
name: 'sqlite3_rollback_hook',
signature: 'v(p)',
contextKey: (argv)=>argv[0/* sqlite3* */]
}),
'*'
]],
/**
We do not have a way to automatically clean up destructors
which are automatically converted from JS functions via the
final argument to sqlite3_set_auxdata(). Because of that,
automatic function conversion is not supported for this
function. Clients should use wasm.installFunction() to create
such callbacks, then pass that pointer to
sqlite3_set_auxdata(). Relying on automated conversions here
would lead to leaks of JS/WASM proxy functions because
sqlite3_set_auxdata() is frequently called in UDFs.
The sqlite3.oo1.DB class's onclose handlers can be used for this
purpose. For example:
const pAuxDtor = wasm.installFunction('v(p)', function(ptr){
//free ptr
});
myDb.onclose = {
after: ()=>{
wasm.uninstallFunction(pAuxDtor);
}
};
Then pass pAuxDtor as the final argument to appropriate
sqlite3_set_auxdata() calls.
Prior to 3.49.0 this binding ostensibly had automatic
function conversion here but a typo prevented it from
working. Rather than fix it, it was removed because testing
the fix brought the huge potential for memory leaks to the
forefront.
*/
["sqlite3_set_auxdata", undefined, [
"sqlite3_context*", "int", "*",
true
? "*"
: new wasm.xWrap.FuncPtrAdapter({
/* If we can find a way to automate their cleanup, JS functions can
be auto-converted with this. */
name: 'xDestroyAuxData',
signature: 'v(p)',
contextKey: (argv, argIndex)=>argv[0/* sqlite3_context* */]
})
]],
['sqlite3_set_errmsg', 'int', 'sqlite3*', 'int', 'string'],
["sqlite3_shutdown", undefined],
["sqlite3_sourceid", "string"],
["sqlite3_sql", "string", "sqlite3_stmt*"],
["sqlite3_status", "int", "int", "*", "*", "int"],
["sqlite3_step", "int", "sqlite3_stmt*"],
["sqlite3_stmt_busy", "int", "sqlite3_stmt*"],
["sqlite3_stmt_readonly", "int", "sqlite3_stmt*"],
["sqlite3_stmt_status", "int", "sqlite3_stmt*", "int", "int"],
["sqlite3_strglob", "int", "string","string"],
["sqlite3_stricmp", "int", "string", "string"],
["sqlite3_strlike", "int", "string", "string","int"],
["sqlite3_strnicmp", "int", "string", "string", "int"],
["sqlite3_table_column_metadata", "int",
"sqlite3*", "string", "string", "string",
"**", "**", "*", "*", "*"],
["sqlite3_total_changes", "int", "sqlite3*"],
["sqlite3_trace_v2", "int", [
"sqlite3*", "int",
new wasm.xWrap.FuncPtrAdapter({
name: 'sqlite3_trace_v2::callback',
signature: 'i(ippp)',
contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
}),
"*"
]],
["sqlite3_txn_state", "int", ["sqlite3*","string"]],
/* sqlite3_uri_...() have very specific requirements for their
first C-string arguments, so we cannot perform any
string-type conversion on their first argument. */
["sqlite3_uri_boolean", "int", "sqlite3_filename", "string", "int"],
["sqlite3_uri_key", "string", "sqlite3_filename", "int"],
["sqlite3_uri_parameter", "string", "sqlite3_filename", "string"],
["sqlite3_user_data","void*", "sqlite3_context*"],
["sqlite3_value_blob", "*", "sqlite3_value*"],
["sqlite3_value_bytes","int", "sqlite3_value*"],
["sqlite3_value_double","f64", "sqlite3_value*"],
["sqlite3_value_dup", "sqlite3_value*", "sqlite3_value*"],
["sqlite3_value_free", undefined, "sqlite3_value*"],
["sqlite3_value_frombind", "int", "sqlite3_value*"],
["sqlite3_value_int","int", "sqlite3_value*"],
["sqlite3_value_nochange", "int", "sqlite3_value*"],
["sqlite3_value_numeric_type", "int", "sqlite3_value*"],
["sqlite3_value_pointer", "*", "sqlite3_value*", "string:static"],
["sqlite3_value_subtype", "int", "sqlite3_value*"],
//#if not proxy-text-apis
["sqlite3_value_text", "string", "sqlite3_value*"],
//#/if
["sqlite3_value_type", "int", "sqlite3_value*"],
["sqlite3_vfs_find", "*", "string"],
["sqlite3_vfs_register", "int", "sqlite3_vfs*", "int"],
["sqlite3_vfs_unregister", "int", "sqlite3_vfs*"]
/* This list gets extended with optional pieces below */
]/*.core*/,
/**
Functions which require BigInt (int64) support are separated
from the others because we need to conditionally bind them or
apply dummy impls, depending on the capabilities of the
environment. (That said: we never actually build without
BigInt support, and such builds are untested.)
Not all of these functions directly require int64 but are only
for use with APIs which require int64. For example, the
vtab-related functions.
*/
int64: [
["sqlite3_bind_int64","int", ["sqlite3_stmt*", "int", "i64"]],
["sqlite3_changes64","i64", ["sqlite3*"]],
["sqlite3_column_int64","i64", ["sqlite3_stmt*", "int"]],
["sqlite3_deserialize", "int", "sqlite3*", "string", "*", "i64", "i64", "int"]
/* Careful! Short version: de/serialize() are problematic because they
might use a different allocator than the user for managing the
deserialized block. de/serialize() are ONLY safe to use with
sqlite3_malloc(), sqlite3_free(), and its 64-bit variants. Because
of this, the canonical builds of sqlite3.wasm/js guarantee that
sqlite3.wasm.alloc() and friends use those allocators. Custom builds
may not guarantee that, however. */,
["sqlite3_last_insert_rowid", "i64", ["sqlite3*"]],
["sqlite3_malloc64", "*","i64"],
["sqlite3_msize", "i64", "*"],
["sqlite3_overload_function", "int", ["sqlite3*","string","int"]],
["sqlite3_realloc64", "*","*", "i64"],
["sqlite3_result_int64", undefined, "*", "i64"],
["sqlite3_result_zeroblob64", "int", "*", "i64"],
["sqlite3_serialize","*", "sqlite3*", "string", "*", "int"],
["sqlite3_set_last_insert_rowid", undefined, ["sqlite3*", "i64"]],
["sqlite3_status64", "int", "int", "*", "*", "int"],
["sqlite3_db_status64", "int", "sqlite3*", "int", "*", "*", "int"],
["sqlite3_total_changes64", "i64", ["sqlite3*"]],
["sqlite3_update_hook", "*", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
name: 'sqlite3_update_hook::callback',
signature: "v(pippj)",
contextKey: (argv)=>argv[0/* sqlite3* */],
callProxy: (callback)=>{
return (p,op,z0,z1,rowid)=>{
callback(p, op, wasm.cstrToJs(z0), wasm.cstrToJs(z1), rowid);
};
}
}),
"*"
]],
["sqlite3_uri_int64", "i64", ["sqlite3_filename", "string", "i64"]],
["sqlite3_value_int64","i64", "sqlite3_value*"]
/* This list gets extended with optional pieces below */
]/*.int64*/,
/**
Functions which are intended solely for API-internal use by the
WASM components, not client code. These get installed into
sqlite3.util. Some of them get exposed to clients via variants
in sqlite3_js_...().
2024-01-11: these were renamed, with two underscores in the
prefix, to ensure that clients do not accidentally depend on
them. They have always been documented as internal-use-only,
so no clients "should" be depending on the old names.
*/
wasmInternal: [
["sqlite3__wasm_db_reset", "int", "sqlite3*"],
["sqlite3__wasm_db_vfs", "sqlite3_vfs*", "sqlite3*","string"],
[/* DO NOT USE. This is deprecated since 2023-08-11 because it
can trigger assert() in debug builds when used with file
sizes which are not an exact multiple of a valid db page
size. This function is retained only so that
sqlite3_js_vfs_create_file() can continue to work (for a
given value of work), but that function emits a
config.warn() log message directing the reader to
alternatives. */
"sqlite3__wasm_vfs_create_file", "int", "sqlite3_vfs*","string","*", "int"
],
["sqlite3__wasm_posix_create_file", "int", "string","*", "int"],
["sqlite3__wasm_vfs_unlink", "int", "sqlite3_vfs*","string"],
["sqlite3__wasm_qfmt_token","string:dealloc", "string","int"]
]/*.wasmInternal*/
} /*bindingSignatures*/;
if( !!wasm.exports.sqlite3_progress_handler ){
bindingSignatures.core.push(
["sqlite3_progress_handler", undefined, [
"sqlite3*", "int", new wasm.xWrap.FuncPtrAdapter({
name: 'xProgressHandler',
signature: 'i(p)',
bindScope: 'context',
contextKey: (argv,argIndex)=>argv[0/* sqlite3* */]
}), "*"
]]
);
}
if( !!wasm.exports.sqlite3_stmt_explain ){
bindingSignatures.core.push(
["sqlite3_stmt_explain", "int", "sqlite3_stmt*", "int"],
["sqlite3_stmt_isexplain", "int", "sqlite3_stmt*"]
);
}
if( !!wasm.exports.sqlite3_set_authorizer ){
bindingSignatures.core.push(
["sqlite3_set_authorizer", "int", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
name: "sqlite3_set_authorizer::xAuth",
signature: "i(pi"+"ssss)",
contextKey: (argv, argIndex)=>argv[0/*(sqlite3*)*/],
/**
We use callProxy here to ensure (A) that exceptions
thrown from callback() have well-defined behavior and (B)
that its result is coerced to an integer.
*/
callProxy: (callback)=>{
return (pV, iCode, s0, s1, s2, s3)=>{
try{
s0 = s0 && wasm.cstrToJs(s0); s1 = s1 && wasm.cstrToJs(s1);
s2 = s2 && wasm.cstrToJs(s2); s3 = s3 && wasm.cstrToJs(s3);
return callback(pV, iCode, s0, s1, s2, s3) | 0;
}catch(e){
return e.resultCode || capi.SQLITE_ERROR;
}
}
}
}),
"*"/*pUserData*/
]]
);
}/* sqlite3_set_authorizer() */
if( !!wasm.exports.sqlite3_column_origin_name ){
bindingSignatures.core.push(
["sqlite3_column_database_name","string", "sqlite3_stmt*", "int"],
["sqlite3_column_origin_name","string", "sqlite3_stmt*", "int"],
["sqlite3_column_table_name","string", "sqlite3_stmt*", "int"]
);
}
if(false && wasm.compileOptionUsed('SQLITE_ENABLE_NORMALIZE')){
/* ^^^ "the problem" is that this is an optional feature and the
build-time function-export list does not currently take
optional features into account. */
bindingSignatures.core.push(["sqlite3_normalized_sql", "string", "sqlite3_stmt*"]);
}
//#if enable-see
if( !!wasm.exports.sqlite3_key_v2 ){
/**
This code is capable of using an SEE build but an SEE WASM
build is generally incompatible with SEE's license conditions.
The project's official stance on WASM builds of SEE is: it is
permitted for use internally within organizations which have
licensed SEE, but not for sites made available to the public or
to unlicensed end users because exposing an SEE build of
sqlite3.wasm effectively provides all clients with a working
copy of SEE.
*/
bindingSignatures.core.push(
["sqlite3_key", "int", "sqlite3*", "string", "int"],
["sqlite3_key_v2","int","sqlite3*","string","*","int"],
["sqlite3_rekey", "int", "sqlite3*", "string", "int"],
["sqlite3_rekey_v2", "int", "sqlite3*", "string", "*", "int"],
["sqlite3_activate_see", undefined, "string"]
);
}
//#/if enable-see
if( wasm.bigIntEnabled && !!wasm.exports.sqlite3_declare_vtab ){
bindingSignatures.int64.push(
["sqlite3_create_module", "int",
["sqlite3*","string","sqlite3_module*","*"]],
["sqlite3_create_module_v2", "int",
["sqlite3*","string","sqlite3_module*","*","*"]],
["sqlite3_declare_vtab", "int", ["sqlite3*", "string:flexible"]],
["sqlite3_drop_modules", "int", ["sqlite3*", "**"]],
["sqlite3_vtab_collation","string","sqlite3_index_info*","int"],
/*["sqlite3_vtab_config" is variadic and requires a hand-written
proxy.] */
["sqlite3_vtab_distinct","int", "sqlite3_index_info*"],
["sqlite3_vtab_in","int", "sqlite3_index_info*", "int", "int"],
["sqlite3_vtab_in_first", "int", "sqlite3_value*", "**"],
["sqlite3_vtab_in_next", "int", "sqlite3_value*", "**"],
["sqlite3_vtab_nochange","int", "sqlite3_context*"],
["sqlite3_vtab_on_conflict","int", "sqlite3*"],
["sqlite3_vtab_rhs_value","int", "sqlite3_index_info*", "int", "**"]
);
}/* virtual table APIs */
if(wasm.bigIntEnabled && !!wasm.exports.sqlite3_preupdate_hook){
bindingSignatures.int64.push(
["sqlite3_preupdate_blobwrite", "int", "sqlite3*"],
["sqlite3_preupdate_count", "int", "sqlite3*"],
["sqlite3_preupdate_depth", "int", "sqlite3*"],
["sqlite3_preupdate_hook", "*", [
"sqlite3*",
new wasm.xWrap.FuncPtrAdapter({
name: 'sqlite3_preupdate_hook',
signature: "v(ppippjj)",
contextKey: (argv)=>argv[0/* sqlite3* */],
callProxy: (callback)=>{
return (p,db,op,zDb,zTbl,iKey1,iKey2)=>{
callback(p, db, op, wasm.cstrToJs(zDb), wasm.cstrToJs(zTbl),
iKey1, iKey2);
};
}
}),
"*"
]],
["sqlite3_preupdate_new", "int", ["sqlite3*", "int", "**"]],
["sqlite3_preupdate_old", "int", ["sqlite3*", "int", "**"]]
);
} /* preupdate API */
// Add session/changeset APIs...
if(wasm.bigIntEnabled
&& !!wasm.exports.sqlite3changegroup_add
&& !!wasm.exports.sqlite3session_create
&& !!wasm.exports.sqlite3_preupdate_hook /* required by the session API */){
/**
FuncPtrAdapter options for session-related callbacks with the
native signature "i(ps)". This proxy converts the 2nd argument
from a C string to a JS string before passing the arguments on
to the client-provided JS callback.
*/
const __ipsProxy = {
signature: 'i(ps)',
callProxy:(callback)=>{
return (p,s)=>{
try{return callback(p, wasm.cstrToJs(s)) | 0}
catch(e){return e.resultCode || capi.SQLITE_ERROR}
}
}
};
bindingSignatures.int64.push(
['sqlite3changegroup_add', 'int', ['sqlite3_changegroup*', 'int', 'void*']],
['sqlite3changegroup_add_strm', 'int', [
'sqlite3_changegroup*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changegroup_delete', undefined, ['sqlite3_changegroup*']],
['sqlite3changegroup_new', 'int', ['**']],
['sqlite3changegroup_output', 'int', ['sqlite3_changegroup*', 'int*', '**']],
['sqlite3changegroup_output_strm', 'int', [
'sqlite3_changegroup*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_apply', 'int', [
'sqlite3*', 'int', 'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', bindScope: 'transient', ...__ipsProxy
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_apply_strm', 'int', [
'sqlite3*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', bindScope: 'transient', ...__ipsProxy
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_apply_v2', 'int', [
'sqlite3*', 'int', 'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', bindScope: 'transient', ...__ipsProxy
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*', '**', 'int*', 'int'
]],
['sqlite3changeset_apply_v2_strm', 'int', [
'sqlite3*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', bindScope: 'transient', ...__ipsProxy
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*', '**', 'int*', 'int'
]],
['sqlite3changeset_apply_v3', 'int', [
'sqlite3*', 'int', 'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', signature: 'i(pp)', bindScope: 'transient'
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*', '**', 'int*', 'int'
]],
['sqlite3changeset_apply_v3_strm', 'int', [
'sqlite3*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', signature: 'i(pp)', bindScope: 'transient'
}),
new wasm.xWrap.FuncPtrAdapter({
name: 'xConflict', signature: 'i(pip)', bindScope: 'transient'
}),
'void*', '**', 'int*', 'int'
]],
['sqlite3changeset_concat', 'int', ['int','void*', 'int', 'void*', 'int*', '**']],
['sqlite3changeset_concat_strm', 'int', [
new wasm.xWrap.FuncPtrAdapter({
name: 'xInputA', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInputB', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_conflict', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
['sqlite3changeset_finalize', 'int', ['sqlite3_changeset_iter*']],
['sqlite3changeset_fk_conflicts', 'int', ['sqlite3_changeset_iter*', 'int*']],
['sqlite3changeset_invert', 'int', ['int', 'void*', 'int*', '**']],
['sqlite3changeset_invert_strm', 'int', [
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xOutput', signature: 'i(ppi)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_new', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
['sqlite3changeset_next', 'int', ['sqlite3_changeset_iter*']],
['sqlite3changeset_old', 'int', ['sqlite3_changeset_iter*', 'int', '**']],
['sqlite3changeset_op', 'int', [
'sqlite3_changeset_iter*', '**', 'int*', 'int*','int*'
]],
['sqlite3changeset_pk', 'int', ['sqlite3_changeset_iter*', '**', 'int*']],
['sqlite3changeset_start', 'int', ['**', 'int', '*']],
['sqlite3changeset_start_strm', 'int', [
'**',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3changeset_start_v2', 'int', ['**', 'int', '*', 'int']],
['sqlite3changeset_start_v2_strm', 'int', [
'**',
new wasm.xWrap.FuncPtrAdapter({
name: 'xInput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*', 'int'
]],
['sqlite3session_attach', 'int', ['sqlite3_session*', 'string']],
['sqlite3session_changeset', 'int', ['sqlite3_session*', 'int*', '**']],
['sqlite3session_changeset_size', 'i64', ['sqlite3_session*']],
['sqlite3session_changeset_strm', 'int', [
'sqlite3_session*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xOutput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3session_config', 'int', ['int', 'void*']],
['sqlite3session_create', 'int', ['sqlite3*', 'string', '**']],
//sqlite3session_delete() is bound manually
['sqlite3session_diff', 'int', ['sqlite3_session*', 'string', 'string', '**']],
['sqlite3session_enable', 'int', ['sqlite3_session*', 'int']],
['sqlite3session_indirect', 'int', ['sqlite3_session*', 'int']],
['sqlite3session_isempty', 'int', ['sqlite3_session*']],
['sqlite3session_memory_used', 'i64', ['sqlite3_session*']],
['sqlite3session_object_config', 'int', ['sqlite3_session*', 'int', 'void*']],
['sqlite3session_patchset', 'int', ['sqlite3_session*', '*', '**']],
['sqlite3session_patchset_strm', 'int', [
'sqlite3_session*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xOutput', signature: 'i(ppp)', bindScope: 'transient'
}),
'void*'
]],
['sqlite3session_table_filter', undefined, [
'sqlite3_session*',
new wasm.xWrap.FuncPtrAdapter({
name: 'xFilter', ...__ipsProxy,
contextKey: (argv,argIndex)=>argv[0/* (sqlite3_session*) */]
}),
'*'
]]
);
}/*session/changeset APIs*/
/**
Prepare JS<->C struct bindings for the non-opaque struct types we
need...
*/
sqlite3.StructBinder = globalThis.Jaccwabyt({
heap: wasm.heap8u,
alloc: wasm.alloc,
dealloc: wasm.dealloc,
bigIntEnabled: wasm.bigIntEnabled,
pointerIR: wasm.ptr.ir,
memberPrefix: /* Never change this: this prefix is baked into any
amount of code and client-facing docs. (Much
later: it probably should have been '$$', but see
the previous sentence.) */ '$'
});
delete globalThis.Jaccwabyt;
{// wasm.xWrap() bindings...
/* Convert Arrays and certain TypedArrays to strings for
'string:flexible'-type arguments */
const __xString = wasm.xWrap.argAdapter('string');
wasm.xWrap.argAdapter(
'string:flexible', (v)=>__xString(util.flexibleString(v))
);
/**
The 'string:static' argument adapter treats its argument as
either...
- WASM pointer: assumed to be a long-lived C-string which gets
returned as-is.
- Anything else: gets coerced to a JS string for use as a map
key. If a matching entry is found (as described next), it is
returned, else wasm.allocCString() is used to create a a new
string, map its pointer to a copy of (''+v) for the remainder
of the application's life, and returns that pointer value for
this call and all future calls which are passed a
string-equivalent argument.
Use case: sqlite3_bind_pointer(), sqlite3_result_pointer(), and
sqlite3_value_pointer() call for "a static string and
preferably a string literal". This converter is used to ensure
that the string value seen by those functions is long-lived and
behaves as they need it to, at the cost of a one-time leak of
each distinct key.
*/
wasm.xWrap.argAdapter(
'string:static',
function(v){
if(wasm.isPtr(v)) return v;
v = ''+v;
let rc = this[v];
return rc || (this[v] = wasm.allocCString(v));
}.bind(Object.create(null))
);
/**
Add some descriptive xWrap() aliases for '*' intended to (A)
improve readability/correctness of bindingSignatures and (B)
provide automatic conversion from higher-level representations,
e.g. capi.sqlite3_vfs to `sqlite3_vfs*` via (capi.sqlite3_vfs
instance).pointer.
*/
const __xArgPtr = wasm.xWrap.argAdapter('*');
const nilType = function(){
/*a class which no value can ever be an instance of*/
};
wasm.xWrap.argAdapter('sqlite3_filename', __xArgPtr)
('sqlite3_context*', __xArgPtr)
('sqlite3_value*', __xArgPtr)
('void*', __xArgPtr)
('sqlite3_changegroup*', __xArgPtr)
('sqlite3_changeset_iter*', __xArgPtr)
('sqlite3_session*', __xArgPtr)
('sqlite3_stmt*', (v)=>
__xArgPtr((v instanceof (sqlite3?.oo1?.Stmt || nilType))
? v.pointer : v))
('sqlite3*', (v)=>
__xArgPtr((v instanceof (sqlite3?.oo1?.DB || nilType))
? v.pointer : v))
/**
`sqlite3_vfs*`:
- v is-a string: use the result of sqlite3_vfs_find(v) but
throw if it returns 0.
- v is-a capi.sqlite3_vfs: use v.pointer.
- Else return the same as the `'*'` argument conversion.
*/
('sqlite3_vfs*', (v)=>{
if('string'===typeof v){
/* A NULL sqlite3_vfs pointer will be treated as the default
VFS in many contexts. We specifically do not want that
behavior here. */
return capi.sqlite3_vfs_find(v)
|| sqlite3.SQLite3Error.toss(
capi.SQLITE_NOTFOUND,
"Unknown sqlite3_vfs name:", v
);
}
return __xArgPtr((v instanceof (capi.sqlite3_vfs || nilType))
? v.pointer : v);
});
if( wasm.exports.sqlite3_declare_vtab ){
wasm.xWrap.argAdapter('sqlite3_index_info*', (v)=>
__xArgPtr((v instanceof (capi.sqlite3_index_info || nilType))
? v.pointer : v))
('sqlite3_module*', (v)=>
__xArgPtr((v instanceof (capi.sqlite3_module || nilType))
? v.pointer : v)
);
}
/**
Alias `T*` to `*` for return type conversions for common T
types, primarily to improve legibility of their binding
signatures.
*/
const __xRcPtr = wasm.xWrap.resultAdapter('*');
wasm.xWrap.resultAdapter('sqlite3*', __xRcPtr)
('sqlite3_context*', __xRcPtr)
('sqlite3_stmt*', __xRcPtr)
('sqlite3_value*', __xRcPtr)
('sqlite3_vfs*', __xRcPtr)
('void*', __xRcPtr);
/**
Populate api object with sqlite3_...() by binding the "raw" wasm
exports into type-converting proxies using wasm.xWrap().
*/
for(const e of bindingSignatures.core){
capi[e[0]] = wasm.xWrap.apply(null, e);
}
for(const e of bindingSignatures.wasmInternal){
util[e[0]] = wasm.xWrap.apply(null, e);
}
/* For C API functions which cannot work properly unless
wasm.bigIntEnabled is true, install a bogus impl which throws
if called when bigIntEnabled is false. The alternative would be
to elide these functions altogether, which seems likely to
cause more confusion, as documented APIs would resolve to the
undefined value in incompatible builds. */
for(const e of bindingSignatures.int64){
capi[e[0]] = wasm.bigIntEnabled
? wasm.xWrap.apply(null, e)
: ()=>toss(e[0]+"() is unavailable due to lack",
"of BigInt support in this build.");
}
/* We're done with bindingSignatures but it's const, so... */
delete bindingSignatures.core;
delete bindingSignatures.int64;
delete bindingSignatures.wasmInternal;
/**
Sets the given db's error state. Accepts:
- (sqlite3*, int code, string msg)
- (sqlite3*, Error e [,string msg = ''+e])
If passed a WasmAllocError, the message is ignored and the
result code is SQLITE_NOMEM. If passed any other Error type,
the result code defaults to SQLITE_ERROR unless the Error
object has a resultCode property, in which case that is used
(e.g. SQLite3Error has that). If passed a non-WasmAllocError
exception, the message string defaults to ''+theError.
Returns either the final result code, capi.SQLITE_NOMEM if
setting the message string triggers an OOM, or
capi.SQLITE_MISUSE if pDb is NULL or invalid (with the caveat
that behavior in the later case is undefined if pDb is not
"valid enough").
Pass (pDb,0,0) to clear the error state.
*/
util.sqlite3__wasm_db_error = function(pDb, resultCode, message){
if( !pDb ) return capi.SQLITE_MISUSE;
if(resultCode instanceof sqlite3.WasmAllocError){
resultCode = capi.SQLITE_NOMEM;
message = 0 /*avoid allocating message string*/;
}else if(resultCode instanceof Error){
message = message || ''+resultCode;
resultCode = (resultCode.resultCode || capi.SQLITE_ERROR);
}
return capi.sqlite3_set_errmsg(pDb, resultCode, message) || resultCode;
};
}/*xWrap() bindings*/
{/* Import C-level constants and structs... */
const cJson = wasm.xCall('sqlite3__wasm_enum_json');
if(!cJson){
toss("Maintenance required: increase sqlite3__wasm_enum_json()'s",
"static buffer size!");
}
wasm.ctype = JSON.parse(wasm.cstrToJs(cJson));
// Groups of SQLITE_xyz macros...
const defineGroups = ['access', 'authorizer',
'blobFinalizers', 'changeset',
'config', 'dataTypes',
'dbConfig', 'dbStatus',
'encodings', 'fcntl', 'flock', 'ioCap',
'limits', 'openFlags',
'prepareFlags', 'resultCodes',
'sqlite3Status',
'stmtStatus', 'syncFlags',
'trace', 'txnState', 'udfFlags',
'version'];
if(wasm.bigIntEnabled){
defineGroups.push('serialize', 'session', 'vtab');
}
for(const t of defineGroups){
for(const e of Object.entries(wasm.ctype[t])){
// ^^^ [k,v] there triggers a buggy code transformation via
// one of the Emscripten-driven optimizers.
capi[e[0]] = e[1];
}
}
if(!wasm.functionEntry(capi.SQLITE_WASM_DEALLOC)){
toss("Internal error: cannot resolve exported function",
"entry SQLITE_WASM_DEALLOC (=="+capi.SQLITE_WASM_DEALLOC+").");
}
const __rcMap = Object.create(null);
for(const e of Object.entries(wasm.ctype['resultCodes'])){
__rcMap[e[1]] = e[0];
}
/**
For the given integer, returns the SQLITE_xxx result code as a
string, or undefined if no such mapping is found.
*/
capi.sqlite3_js_rc_str = (rc)=>__rcMap[rc];
/* Bind all registered C-side structs... */
const notThese = Object.assign(Object.create(null),{
// For each struct to NOT register, map its name to true:
WasmTestStruct: true,
/* sqlite3_index_info and friends require int64: */
sqlite3_index_info: !wasm.bigIntEnabled,
sqlite3_index_constraint: !wasm.bigIntEnabled,
sqlite3_index_orderby: !wasm.bigIntEnabled,
sqlite3_index_constraint_usage: !wasm.bigIntEnabled
});
for(const s of wasm.ctype.structs){