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Expand "sqlite3_vfs*" JS-to-WASM function argument conversions to accept VFS names (JS strings) and capi.sqlite3_vfs instances. Implement sqlite3_js_vfs_create_file() to facilitate creation of file-upload features which store the file in VFS-specific storage (where possible, e.g. "unix" and "opfs" VFSes). Correct an argument type check in the SQLite3Error and WasmAllocError constructors.

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FossilOrigin-Name: e1009b16d351b23676ad7bffab0c91b373a92132eb855c9af61991b50cd237ed
This commit is contained in:
stephan
2022-12-01 03:55:28 +00:00
parent 85ec20ac66
commit 2b2199570d
6 changed files with 225 additions and 64 deletions
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27
ext/wasm/api/sqlite3-api-glue.js
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@ -73,8 +73,27 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
('sqlite3_stmt*', aPtr)
('sqlite3_context*', aPtr)
('sqlite3_value*', aPtr)
('sqlite3_vfs*', aPtr)
('void*', aPtr);
('void*', aPtr)
/**
`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){
const x = capi.sqlite3_vfs_find(v);
/* A NULL sqlite3_vfs pointer will be treated as the default
VFS in many contexts. We specifically do not want that
behavior here. */
if(!x) sqlite3.SQLite3Error.toss("Unknown sqlite3_vfs name:",v);
return x;
}else if(v instanceof sqlite3.capi.sqlite3_vfs) v = v.pointer;
return aPtr(v);
});
wasm.xWrap.resultAdapter('sqlite3*', aPtr)
('sqlite3_context*', aPtr)
('sqlite3_stmt*', aPtr)
@ -588,8 +607,8 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
'version'
]){
for(const e of Object.entries(wasm.ctype[t])){
// ^^^ [k,v] there triggers a buggy code transormation via one
// of the Emscripten-driven optimizers.
// ^^^ [k,v] there triggers a buggy code transformation via
// one of the Emscripten-driven optimizers.
capi[e[0]] = e[1];
}
}