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Add sqlite3changeset_new/old_js(), which work like sqlite3_preupdate_new/old_js() but on changesets.

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FossilOrigin-Name: e8afad630b085a9208491e0516a6a30c9cda77a20b1aa2cba49b2f44eb9fa2f8
This commit is contained in:
stephan
2022-12-27 22:46:49 +00:00
parent 294968e030
commit 010ffff8d7
3 changed files with 39 additions and 19 deletions
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44
ext/wasm/api/sqlite3-api-prologue.js
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@ -1780,17 +1780,17 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
};
/**
Internal impl of sqlite3_preupdate_new_js() and
sqlite3_preupdate_old_js().
Internal impl of sqlite3_preupdate_new/old_js() and
sqlite3changeset_new/old_js().
*/
const __preupdateNewOld = function(pDb, iCol, impl){
const __newOldValue = function(pObj, iCol, impl){
impl = capi[impl];
if(!this.ptr) this.ptr = wasm.allocPtr();
else wasm.pokePtr(this.ptr, 0);
const rc = impl(pDb, iCol, this.ptr);
return rc
? SQLite3Error.toss(rc,arguments[2]+"() failed with code "+rc)
: capi.sqlite3_value_to_js( wasm.peekPtr(this.ptr), true );
const rc = impl(pObj, iCol, this.ptr);
if(rc) return SQLite3Error.toss(rc,arguments[2]+"() failed with code "+rc);
const pv = wasm.peekPtr(this.ptr);
return pv ? capi.sqlite3_value_to_js( pv, true ) : undefined;
}.bind(Object.create(null));
/**
@ -1799,15 +1799,35 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
passing it to sqlite3_value_to_js(). Throws on error.
*/
capi.sqlite3_preupdate_new_js =
(pDb, iCol)=>__preupdateNewOld(pDb, iCol, 'sqlite3_preupdate_new');
(pDb, iCol)=>__newOldValue(pDb, iCol, 'sqlite3_preupdate_new');
/**
A wrapper around sqlite3_preupdate_old() which fetches the
sqlite3_value at the given index and returns the result of
passing it to sqlite3_value_to_js(). Throws on error.
The sqlite3_preupdate_old() counterpart of
sqlite3_preupdate_new_js(), with an identical interface.
*/
capi.sqlite3_preupdate_old_js =
(pDb, iCol)=>__preupdateNewOld(pDb, iCol, 'sqlite3_preupdate_old');
(pDb, iCol)=>__newOldValue(pDb, iCol, 'sqlite3_preupdate_old');
/**
A wrapper around sqlite3changeset_new() which fetches the
sqlite3_value at the given index and returns the result of
passing it to sqlite3_value_to_js(). Throws on error.
If sqlite3changeset_new() succeeds but has no value to report,
this function returns the undefined value, noting that undefined
is a valid conversion from an `sqlite3_value`, so is unambiguous.
*/
capi.sqlite3changeset_new_js =
(pChangesetIter, iCol) => __newOldValue(pChangesetIter, iCol,
'sqlite3changeset_new');
/**
The sqlite3changeset_old() counterpart of
sqlite3changeset_new_js(), with an identical interface.
*/
capi.sqlite3changeset_old_js =
(pChangesetIter, iCol)=>__newOldValue(pChangesetIter, iCol,
'sqlite3changeset_old');
/* The remainder of the API will be set up in later steps. */
const sqlite3 = {