wasm refactoring part 2 of (apparently) 2: moved ext/fiddle/... into ext/wasm and restructured the core API-related parts of the JS/WASM considerably.

FossilOrigin-Name: 27f9da4eaaff39d1d58e9ffef7ddccf1e41b3726914f754b920e3e1fb572cba6

1 files changed, 44 insertions, 0 deletions

diff --git a/ext/wasm/api/sqlite3-api-cleanup.js b/ext/wasm/api/sqlite3-api-cleanup.js
new file mode 100644
index 000000000..a2f921a5d
--- /dev/null
+++ b/ext/wasm/api/sqlite3-api-cleanup.js
@@ -0,0 +1,44 @@
+/*
+  2022-07-22
+
+  The author disclaims copyright to this source code.  In place of a
+  legal notice, here is a blessing:
+
+  *   May you do good and not evil.
+  *   May you find forgiveness for yourself and forgive others.
+  *   May you share freely, never taking more than you give.
+
+  ***********************************************************************
+
+  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.
+*/
+'use strict';
+self.sqlite3.postInit.forEach(
+  self.importScripts/*global is a Worker*/
+    ? function(f){
+      /** We try/catch/report for the sake of failures which happen in
+          a Worker, as those exceptions can otherwise get completely
+          swallowed, leading to confusing downstream errors which have
+          nothing to do with this failure. */
+      try{ f(self, self.sqlite3) }
+      catch(e){
+        console.error("Error in postInit() function:",e);
+        throw e;
+      }
+    }
+  : (f)=>f(self, self.sqlite3)
+);
+delete self.sqlite3.postInit;
+if(self.location && +self.location.port > 1024){
+  console.warn("Installing sqlite3 bits as global S for dev-testing purposes.");
+  self.S = self.sqlite3;
+}
+/* Clean up temporary global-scope references to our APIs... */
+self.sqlite3.config.Module.sqlite3 = self.sqlite3
+/* ^^^^ Currently needed by test code and Worker API setup */;
+delete self.sqlite3.capi.util /* arguable, but these are (currently) internal-use APIs */;
+delete self.sqlite3 /* clean up our global-scope reference */;
+//console.warn("Module.sqlite3 =",Module.sqlite3);