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Refactor a significant chunk of the OPFS sqlite3_vfs init code into sqlite3.VfsHelper, and internal-use-only API encapsulating code relevant to creating new VFSes in JS. Intended to assist in pending experimentation with an alternative OPFS VFS.

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FossilOrigin-Name: e25d7b080a807e35b32cb885ea75b384130e5c6e936dfef783c5b45d9bfe77d8
This commit is contained in:
stephan
2022-11-30 05:27:36 +00:00
parent d0945f4638
commit ad4f782815
10 changed files with 280 additions and 126 deletions
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17
ext/wasm/api/sqlite3-api-prologue.js
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@ -612,8 +612,11 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
isBindableTypedArray,
isInt32, isSQLableTypedArray, isTypedArray,
typedArrayToString,
isUIThread: ()=>'undefined'===typeof WorkerGlobalScope,
isUIThread: ()=>(self.window===self && !!self.document),
// is this true for ESM?: 'undefined'===typeof WorkerGlobalScope
isSharedTypedArray,
toss: function(...args){throw new Error(args.join(' '))},
toss3,
typedArrayPart
};
@ -1460,7 +1463,17 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
//let p = lip.shift();
//while(lip.length) p = p.then(lip.shift());
//return p.then(()=>sqlite3);
return Promise.all(lip).then(()=>sqlite3);
return Promise.all(lip).then(()=>{
if(!sqlite3.__isUnderTest){
/* Delete references to internal-only APIs which are used by
some initializers. Retain them when running in test mode
so that we can add tests for them. */
delete sqlite3.util;
delete sqlite3.VfsHelper;
delete sqlite3.StructBinder;
}
return sqlite3;
});
},
/**
scriptInfo ideally gets injected into this object by the