Add JS bundler-friendly JS build. Minor test code cleanups.

FossilOrigin-Name: 24d3a53dea5e596230558e233cbbd9d0288b4c394cd5ea7b650fd99bff4cde2e

ext/wasm/api/extern-post-js.c-pp.js

@@ -9,7 +9,7 @@
    Emscripten-generated module init scope, in the current
    global scope. */
 //#if target=es6-module
-const toExportForES6 =
+const toExportForESM =
 //#endif
 (function(){
   /**
@@ -45,10 +45,10 @@ const toExportForES6 =
     moduleScript: self?.document?.currentScript,
     isWorker: ('undefined' !== typeof WorkerGlobalScope),
     location: self.location,
-    urlParams: new URL(self.location.href).searchParams
+    urlParams:  new URL(self.location.href).searchParams
   });
   initModuleState.debugModule =
-    (new URL(self.location.href).searchParams).has('sqlite3.debugModule')
+    initModuleState.urlParams.has('sqlite3.debugModule')
     ? (...args)=>console.warn('sqlite3.debugModule:',...args)
     : ()=>{};
 
@@ -105,6 +105,10 @@ const toExportForES6 =
                    document?.currentScript?.src);
     }
   }
+//#ifnot target=es6-module
+// Emscripten does not inject these module-loader bits in ES6 module
+// builds and including them here breaks JS bundlers, so elide them
+// from ESM builds.
   /* Replace the various module exports performed by the Emscripten
      glue... */
   if (typeof exports === 'object' && typeof module === 'object'){
@@ -114,8 +118,9 @@ const toExportForES6 =
   }
   /* AMD modules get injected in a way we cannot override,
      so we can't handle those here. */
+//#endif // !target=es6-module
   return self.sqlite3InitModule /* required for ESM */;
 })();
 //#if target=es6-module
-export default toExportForES6;
+export default toExportForESM;
 //#endif

ext/wasm/api/pre-js.c-pp.js

@@ -6,12 +6,14 @@
 */
 
 // See notes in extern-post-js.js
-const sqlite3InitModuleState = self.sqlite3InitModuleState || Object.assign(Object.create(null),{
-  debugModule: ()=>{}
-});
+const sqlite3InitModuleState = self.sqlite3InitModuleState
+      || Object.assign(Object.create(null),{
+        debugModule: ()=>{}
+      });
 delete self.sqlite3InitModuleState;
 sqlite3InitModuleState.debugModule('self.location =',self.location);
 
+//#ifnot target=es6-bundler-friendly
 /**
    This custom locateFile() tries to figure out where to load `path`
    from. The intent is to provide a way for foo/bar/X.js loaded from a
@@ -53,8 +55,9 @@ Module['locateFile'] = function(path, prefix) {
     "result =", theFile
   );
   return theFile;
-//#endif /* SQLITE_JS_EMS */
+//#endif target=es6-module
 }.bind(sqlite3InitModuleState);
+//#endif ifnot target=es6-bundler-friendly
 
 /**
    Bug warning: a custom Module.instantiateWasm() does not work
@@ -64,7 +67,7 @@ Module['locateFile'] = function(path, prefix) {
 
    In such builds we must disable this.
 */
-const xNameOfInstantiateWasm = true
+const xNameOfInstantiateWasm = false
       ? 'instantiateWasm'
       : 'emscripten-bug-17951';
 Module[xNameOfInstantiateWasm] = function callee(imports,onSuccess){

ext/wasm/api/sqlite3-api-oo1.js

@@ -183,7 +183,7 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
         checkSqlite3Rc(
           pDb, capi.sqlite3_exec(pDb, postInitSql, 0, 0, 0)
         );
-      }      
+      }
     }catch(e){
       this.close();
       throw e;
@@ -791,6 +791,9 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
        - `callback` and `resultRows`: permit an array entries with
        semantics similar to those described for `bind` above.
 
+       - If passed neither a callback nor returnValue but is passed a
+         rowMode, default to returning the result set.
+
     */
     exec: function(/*(sql [,obj]) || (obj)*/){
       affirmDbOpen(this);

ext/wasm/api/sqlite3-vfs-opfs.c-pp.js

@@ -198,7 +198,9 @@ const installOpfsVfs = function callee(options){
       return promiseReject_(err);
     };
     const W =
-//#if target=es6-module
+//#if target=es6-bundler-friendly
+    new Worker(new URL("sqlite3-opfs-async-proxy.js", import.meta.url));
+//#elif target=es6-module
     new Worker(new URL(options.proxyUri, import.meta.url));
 //#else
     new Worker(options.proxyUri);

ext/wasm/api/sqlite3-worker1-promiser.js

@@ -238,6 +238,9 @@ self.sqlite3Worker1Promiser = function callee(config = callee.defaultConfig){
 }/*sqlite3Worker1Promiser()*/;
 self.sqlite3Worker1Promiser.defaultConfig = {
   worker: function(){
+//#if target=es6-bundler-friendly
+    return new Worker("sqlite3-worker1.js");
+//#else
     let theJs = "sqlite3-worker1.js";
     if(this.currentScript){
       const src = this.currentScript.src.split('/');
@@ -252,6 +255,7 @@ self.sqlite3Worker1Promiser.defaultConfig = {
       }
     }
     return new Worker(theJs + self.location.search);
+//#endif
   }.bind({
     currentScript: self?.document?.currentScript
   }),

ext/wasm/api/sqlite3-worker1.js

@@ -33,6 +33,9 @@
 */
 "use strict";
 (()=>{
+//#if target=es6-bundler-friendly
+  importScripts('sqlite3.js');
+//#else
   const urlParams = new URL(self.location.href).searchParams;
   let theJs = 'sqlite3.js';
   if(urlParams.has('sqlite3.dir')){
@@ -40,6 +43,7 @@
   }
   //console.warn("worker1 theJs =",theJs);
   importScripts(theJs);
+//#endif
   sqlite3InitModule().then((sqlite3)=>{
     sqlite3.initWorker1API();
   });