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Refactor the sqlite3_value-to-JS conversion from an internal detail to sqlite3.capi.sqlite3_value_to_js() for use with routines like sqlite3_module::xFilter().

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FossilOrigin-Name: f6dbf280f99809a80c99337e4c22a86dea7a35ae41ae9a69144c4502385a0a1f
This commit is contained in:
stephan
2022-12-09 14:46:24 +00:00
parent edfbde52fd
commit 99f30f1cd4
6 changed files with 64 additions and 54 deletions
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40
ext/wasm/api/sqlite3-api-glue.js
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@ -372,49 +372,19 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
}/*__udfSetResult()*/;
const __udfConvertArgs = function(argc, pArgv){
let i, pVal, valType, arg;
let i;
const tgt = [];
for(i = 0; i < argc; ++i){
pVal = wasm.peekPtr(pArgv + (wasm.ptrSizeof * i));
/**
Curiously: despite ostensibly requiring 8-byte
alignment, the pArgv array is parcelled into chunks of
4 bytes (1 pointer each). The values those point to
have 8-byte alignment but the individual argv entries
do not.
*/
valType = capi.sqlite3_value_type(pVal);
switch(valType){
case capi.SQLITE_INTEGER:
if(wasm.bigIntEnabled){
arg = capi.sqlite3_value_int64(pVal);
if(util.bigIntFitsDouble(arg)) arg = Number(arg);
}
else arg = capi.sqlite3_value_double(pVal)/*yes, double, for larger integers*/;
break;
case capi.SQLITE_FLOAT:
arg = capi.sqlite3_value_double(pVal);
break;
case capi.SQLITE_TEXT:
arg = capi.sqlite3_value_text(pVal);
break;
case capi.SQLITE_BLOB:{
const n = capi.sqlite3_value_bytes(pVal);
const pBlob = capi.sqlite3_value_blob(pVal);
if(n && !pBlob) sqlite3.WasmAllocError.toss(
"Cannot allocate memory for blob argument of",n,"byte(s)"
);
arg = n ? wasm.heap8u().slice(pBlob, pBlob + Number(n)) : null;
break;
}
case capi.SQLITE_NULL:
arg = null; break;
default:
toss3("Unhandled sqlite3_value_type()",valType,
"is possibly indicative of incorrect",
"pointer size assumption.");
}
tgt.push(arg);
*/
tgt.push(capi.sqlite3_value_to_js(
wasm.peekPtr(pArgv + (wasm.ptrSizeof * i))
));
}
return tgt;
}/*__udfConvertArgs()*/;