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().
FossilOrigin-Name: f6dbf280f99809a80c99337e4c22a86dea7a35ae41ae9a69144c4502385a0a1f
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stephan
parent
edfbde52fd
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@ -372,49 +372,19 @@ self.sqlite3ApiBootstrap.initializers.push(function(sqlite3){
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}/*__udfSetResult()*/;
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const __udfConvertArgs = function(argc, pArgv){
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let i, pVal, valType, arg;
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let i;
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const tgt = [];
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for(i = 0; i < argc; ++i){
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pVal = wasm.peekPtr(pArgv + (wasm.ptrSizeof * i));
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/**
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Curiously: despite ostensibly requiring 8-byte
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alignment, the pArgv array is parcelled into chunks of
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4 bytes (1 pointer each). The values those point to
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have 8-byte alignment but the individual argv entries
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do not.
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*/
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valType = capi.sqlite3_value_type(pVal);
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switch(valType){
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case capi.SQLITE_INTEGER:
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if(wasm.bigIntEnabled){
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arg = capi.sqlite3_value_int64(pVal);
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if(util.bigIntFitsDouble(arg)) arg = Number(arg);
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}
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else arg = capi.sqlite3_value_double(pVal)/*yes, double, for larger integers*/;
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break;
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case capi.SQLITE_FLOAT:
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arg = capi.sqlite3_value_double(pVal);
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break;
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case capi.SQLITE_TEXT:
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arg = capi.sqlite3_value_text(pVal);
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break;
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case capi.SQLITE_BLOB:{
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const n = capi.sqlite3_value_bytes(pVal);
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const pBlob = capi.sqlite3_value_blob(pVal);
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if(n && !pBlob) sqlite3.WasmAllocError.toss(
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"Cannot allocate memory for blob argument of",n,"byte(s)"
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);
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arg = n ? wasm.heap8u().slice(pBlob, pBlob + Number(n)) : null;
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break;
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}
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case capi.SQLITE_NULL:
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arg = null; break;
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default:
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toss3("Unhandled sqlite3_value_type()",valType,
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"is possibly indicative of incorrect",
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"pointer size assumption.");
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}
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tgt.push(arg);
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*/
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tgt.push(capi.sqlite3_value_to_js(
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wasm.peekPtr(pArgv + (wasm.ptrSizeof * i))
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));
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}
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return tgt;
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}/*__udfConvertArgs()*/;
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@ -1658,6 +1658,48 @@ self.sqlite3ApiBootstrap = function sqlite3ApiBootstrap(
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}
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}.bind(Object.create(null));
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/**
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Given a (sqlite3_value*), this function attempts to convert it
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to an equivalent JS value with as much fidelity as feasible and
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return it. Throws if it cannot determine any sensible
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conversion, but that would be indicative of a serious error.
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*/
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capi.sqlite3_value_to_js = function(pVal){
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let arg;
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const valType = capi.sqlite3_value_type(pVal);
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switch(valType){
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case capi.SQLITE_INTEGER:
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if(wasm.bigIntEnabled){
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arg = capi.sqlite3_value_int64(pVal);
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if(util.bigIntFitsDouble(arg)) arg = Number(arg);
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}
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else arg = capi.sqlite3_value_double(pVal)/*yes, double, for larger integers*/;
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break;
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case capi.SQLITE_FLOAT:
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arg = capi.sqlite3_value_double(pVal);
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break;
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case capi.SQLITE_TEXT:
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arg = capi.sqlite3_value_text(pVal);
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break;
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case capi.SQLITE_BLOB:{
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const n = capi.sqlite3_value_bytes(pVal);
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const pBlob = capi.sqlite3_value_blob(pVal);
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if(n && !pBlob) sqlite3.WasmAllocError.toss(
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"Cannot allocate memory for blob argument of",n,"byte(s)"
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);
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arg = n ? wasm.heap8u().slice(pBlob, pBlob + Number(n)) : null;
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break;
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}
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case capi.SQLITE_NULL:
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arg = null; break;
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default:
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toss3("Unhandled sqlite3_value_type()",valType,
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"is possibly indicative of incorrect",
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"pointer size assumption.");
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}
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return arg;
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};
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/* The remainder of the API will be set up in later steps. */
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const sqlite3 = {
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WasmAllocError: WasmAllocError,
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@ -316,13 +316,11 @@ self.WhWasmUtilInstaller = function(target){
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Throws if passed an invalid n.
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Pedantic side note: the name "heap" is a bit of a misnomer. In an
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Emscripten environment, the memory managed via the stack
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allocation API is in the same Memory object as the heap (which
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makes sense because otherwise arbitrary pointer X would be
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ambiguous: is it in the heap or the stack?).
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Pedantic side note: the name "heap" is a bit of a misnomer. In a
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WASM environment, the stack and heap memory are all accessed via
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the same view(s) of the memory.
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*/
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target.heapForSize = function(n,unsigned = false){
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target.heapForSize = function(n,unsigned = true){
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let ctor;
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const c = (cache.memory && cache.heapSize === cache.memory.buffer.byteLength)
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? cache : heapWrappers();
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@ -212,8 +212,8 @@
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const renderFunc = function(name){
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let lbl = name+'()';
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const e = eLi(lbl, eFuncs);;
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if(name.startsWith('sqlite3_js')
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|| name.startsWith('sqlite3_wasm')){
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if(name.indexOf('_js')>0
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|| name.indexOf('_wasm')>0){
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e.classList.add('func-wasm');
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}
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};
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20
manifest
20
manifest
@ -1,5 +1,5 @@
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C Fix\stypo\sin\sthe\sSQLITE_DBCONFIG_LOOKASIDE\sdocumentation.
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D 2022-12-09T13:49:44.278
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C Refactor\sthe\ssqlite3_value-to-JS\sconversion\sfrom\san\sinternal\sdetail\sto\ssqlite3.capi.sqlite3_value_to_js()\sfor\suse\swith\sroutines\slike\ssqlite3_module::xFilter().
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D 2022-12-09T14:46:24.289
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F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
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F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
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F LICENSE.md df5091916dbb40e6e9686186587125e1b2ff51f022cc334e886c19a0e9982724
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@ -503,9 +503,9 @@ F ext/wasm/api/post-js-footer.js cd0a8ec768501d9bd45d325ab0442037fb0e33d1f3b4f08
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F ext/wasm/api/sqlite3-api-glue.js a3c92fa35c2de17100504f7377d643b7ecfe5a6fbcdc795a6d8ca4eb0cf873ad
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@ -521,7 +521,7 @@ F ext/wasm/c-pp.c 92285f7bce67ed7b7020b40fde8ed0982c442b63dc33df9dfd4b658d4a6c07
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F ext/wasm/common/SqliteTestUtil.js d8bf97ecb0705a2299765c8fc9e11b1a5ac7f10988bbf375a6558b7ca287067b
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@ -541,7 +541,7 @@ F ext/wasm/index-dist.html c806b6005145b71d64240606e9c6e0bf56878ee8829c66fe7486c
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@ -2067,8 +2067,8 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
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U stephan
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Z 6fd28515eec5c302b8cea52b2f42f90b
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# Remove this line to create a well-formed Fossil manifest.
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@ -1 +1 @@
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c6e7582aea4ebcc4563afb4367fded1e8a74f6ef522a569460023c340ca24b30
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f6dbf280f99809a80c99337e4c22a86dea7a35ae41ae9a69144c4502385a0a1f
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