Worker1: use a list, rather than a single slot, to manage the default db link so that we can keep the least-recently-opened db as the default. Re-introduce worker1.export() but do not yet expose it until an equivalent import() (or open() option) is implemented.

FossilOrigin-Name: c7750c101d9b7baa31496731bc34ea0a9b2bad0c11e2b3e92a8c7b327135c1bb

1 files changed, 8 insertions, 2 deletions

diff --git a/ext/wasm/api/sqlite3-api-glue.js b/ext/wasm/api/sqlite3-api-glue.js
index 63425e538..1477af759 100644
--- a/ext/wasm/api/sqlite3-api-glue.js
+++ b/ext/wasm/api/sqlite3-api-glue.js
@@ -634,7 +634,13 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
       const kvvfsStorage = (zClass)=>
             ((115/*=='s'*/===wasm.getMemValue(zClass))
              ? sessionStorage : localStorage);
-      
+
+      /**
+         Implementations for members of the object referred to by
+         sqlite3_wasm_kvvfs_methods(). We swap out the native
+         implementations with these, which use localStorage or
+         sessionStorage for their backing store.
+      */
       const kvvfsImpls = {
         xRead: (zClass, zKey, zBuf, nBuf)=>{
           const stack = pstack.pointer,
@@ -696,7 +702,7 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
           }
         }
       }/*kvvfsImpls*/;
-      for(let k of Object.keys(kvvfsImpls)){
+      for(const k of Object.keys(kvvfsImpls)){
         kvvfsMethods[kvvfsMethods.memberKey(k)] =
           wasm.installFunction(
             kvvfsMethods.memberSignature(k),