Add a JS implementation of Java's SQLTester.

FossilOrigin-Name: b530792a514d95c4e8f93cf2170d9fc4de367055fa1704fc171551c946024fa9

1 files changed, 36 insertions, 0 deletions

diff --git a/ext/wasm/api/sqlite3-api-prologue.js b/ext/wasm/api/sqlite3-api-prologue.js
index 5abb13b99..ef1154f6b 100644
--- a/ext/wasm/api/sqlite3-api-prologue.js
+++ b/ext/wasm/api/sqlite3-api-prologue.js
@@ -1135,7 +1135,23 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
       return 1===n
         ? wasm.pstack.alloc(safePtrSize ? 8 : wasm.ptrSizeof)
         : wasm.pstack.allocChunks(n, safePtrSize ? 8 : wasm.ptrSizeof);
+    },
+
+    /**
+       Records the current pstack position, calls the given function,
+       passing it the sqlite3 object, then restores the pstack
+       regardless of whether the function throws. Returns the result
+       of the call or propagates an exception on error.
+
+       Added in 3.44.
+    */
+    call: function(f){
+      const stackPos = wasm.pstack.pointer;
+      try{ return f(sqlite3) } finally{
+        wasm.pstack.restore(stackPos);
+      }
     }
+
   })/*wasm.pstack*/;
   Object.defineProperties(wasm.pstack, {
     /**
@@ -1543,6 +1559,26 @@ globalThis.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
     }
   };
 
+  /**
+     Converts SQL input from a variety of convenient formats
+     to plain strings.
+
+     If v is a string, it is returned as-is. If it is-a Array, its
+     join("") result is returned.  If is is a Uint8Array, Int8Array,
+     or ArrayBuffer, it is assumed to hold UTF-8-encoded text and is
+     decoded to a string. If it looks like a WASM pointer,
+     wasm.cstrToJs(sql) is returned. Else undefined is returned.
+
+     Added in 3.44
+  */
+  capi.sqlite3_js_sql_to_string = (sql)=>{
+    if('string' === typeof sql){
+      return sql;
+    }
+    const x = flexibleString(v);
+    return x===v ? undefined : x;
+  }
+
   if( util.isUIThread() ){
     /* Features specific to the main window thread... */