69 lines
2.6 KiB
JavaScript
69 lines
2.6 KiB
JavaScript
/*
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2022-07-22
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The author disclaims copyright to this source code. In place of a
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legal notice, here is a blessing:
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* May you do good and not evil.
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* May you find forgiveness for yourself and forgive others.
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* May you share freely, never taking more than you give.
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***********************************************************************
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This file is the tail end of the sqlite3-api.js constellation,
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intended to be appended after all other sqlite3-api-*.js files so
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that it can finalize any setup and clean up any global symbols
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temporarily used for setting up the API's various subsystems.
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*/
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'use strict';
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if('undefined' !== typeof Module){ // presumably an Emscripten build
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/**
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Install a suitable default configuration for sqlite3ApiBootstrap().
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*/
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const SABC = self.sqlite3ApiConfig || Object.create(null);
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if(undefined===SABC.Module){
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SABC.Module = Module /* ==> Currently needs to be exposed here for
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test code. NOT part of the public API. */;
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}
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if(undefined===SABC.exports){
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SABC.exports = Module['asm'];
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}
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if(undefined===SABC.memory){
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SABC.memory = Module.wasmMemory /* gets set if built with -sIMPORT_MEMORY */;
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}
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/**
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For current (2022-08-22) purposes, automatically call
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sqlite3ApiBootstrap(). That decision will be revisited at some
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point, as we really want client code to be able to call this to
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configure certain parts. Clients may modify
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self.sqlite3ApiBootstrap.defaultConfig to tweak the default
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configuration used by a no-args call to sqlite3ApiBootstrap().
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*/
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//console.warn("self.sqlite3ApiConfig = ",self.sqlite3ApiConfig);
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const rmApiConfig = (SABC !== self.sqlite3ApiConfig);
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self.sqlite3ApiConfig = SABC;
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let sqlite3;
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try{
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sqlite3 = self.sqlite3ApiBootstrap();
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}finally{
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delete self.sqlite3ApiBootstrap;
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if(rmApiConfig) delete self.sqlite3ApiConfig;
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}
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if(self.location && +self.location.port > 1024){
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console.warn("Installing sqlite3 bits as global S for local dev/test purposes.");
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self.S = sqlite3;
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}
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/* Clean up temporary references to our APIs... */
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delete sqlite3.capi.util /* arguable, but these are (currently) internal-use APIs */;
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//console.warn("Module.sqlite3 =",Module.sqlite3);
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Module.sqlite3 = sqlite3 /* Currently needed by test code and sqlite3-worker1.js */;
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}else{
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console.warn("This is not running in an Emscripten module context, so",
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"self.sqlite3ApiBootstrap() is _not_ being called due to lack",
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"of config info for the WASM environment.",
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"It must be called manually.");
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}
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