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More experimentation with how client-side config state can be passed on to initialize the JS-side sqlite3 API.

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FossilOrigin-Name: ea2acc454c012a62556f6d0623d6eff60736d24aa214a64462b423623ef44d47
This commit is contained in:
stephan
2022-08-22 21:37:17 +00:00
parent 7a8a0fceec
commit ae708b2b01
7 changed files with 81 additions and 38 deletions
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38
ext/wasm/api/sqlite3-api-cleanup.js
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@ -11,12 +11,12 @@
***********************************************************************
This file is the tail end of the sqlite3-api.js constellation,
intended to be appended after all other files so that it can clean
up any global systems temporarily used for setting up the API's
various subsystems.
intended to be appended after all other sqlite3-api-*.js files so
that it can finalize any setup and clean up any global symbols
temporarily used for setting up the API's various subsystems.
*/
'use strict';
(function(){
if('undefined' !== typeof Module){ // presumably an Emscripten build
/**
Replace sqlite3ApiBootstrap() with a variant which plugs in the
Emscripten-based config for all config options which the client
@ -24,7 +24,7 @@
*/
const SAB = self.sqlite3ApiBootstrap;
self.sqlite3ApiBootstrap = function(apiConfig){
apiConfig = apiConfig||{};
apiConfig = apiConfig || {};
const configDefaults = {
Module: Module /* ==> Emscripten-style Module object. Currently
needs to be exposed here for test code. NOT part
@ -34,18 +34,29 @@
};
const config = {};
Object.keys(configDefaults).forEach(function(k){
config[k] = Object.prototype.hasOwnProperty.call(apiConfig, k)
config[k] = Object.getOwnPropertyDescriptor(apiConfig, k)
? apiConfig[k] : configDefaults[k];
});
// Copy over any properties apiConfig defines but configDefaults does not...
Object.keys(apiConfig).forEach(function(k){
if(!Object.getOwnPropertyDescriptor(config, k)){
config[k] = apiConfig[k];
}
});
return SAB(config);
};
/**
For current (2022-08-22) purposes, automatically call sqlite3ApiBootstrap().
That decision will be revisited at some point, as we really want client code
to be able to call this to configure certain parts.
*/
const sqlite3 = self.sqlite3ApiBootstrap();
For current (2022-08-22) purposes, automatically call
sqlite3ApiBootstrap(). That decision will be revisited at some
point, as we really want client code to be able to call this to
configure certain parts. If the global sqliteApiConfig property
is available, it is assumed to be a config object for
sqlite3ApiBootstrap().
*/
//console.warn("self.sqlite3ApiConfig = ",self.sqlite3ApiConfig);
const sqlite3 = self.sqlite3ApiBootstrap(self.sqlite3ApiConfig || Object.create(null));
delete self.sqlite3ApiBootstrap;
if(self.location && +self.location.port > 1024){
console.warn("Installing sqlite3 bits as global S for dev-testing purposes.");
@ -53,8 +64,7 @@
}
/* Clean up temporary references to our APIs... */
delete self.sqlite3ApiBootstrap;
Module.sqlite3 = sqlite3 /* Currently needed by test code */;
delete sqlite3.capi.util /* arguable, but these are (currently) internal-use APIs */;
//console.warn("Module.sqlite3 =",Module.sqlite3);
})();
Module.sqlite3 = sqlite3 /* Currently needed by test code and sqlite3-worker1.js */;
}