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Reimplement JS's sqlite3_bind_text/blob() with hand-written bindings to permit more flexible inputs. Add automated JS-to-C function conversion to sqlite3_busy_handler(). sqlite3.wasm.xWrap()'s '*' argument conversion no longer treats JS strings as C-strings: those conversions require explicit opt-in via the 'string' converter (or equivalent).

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FossilOrigin-Name: 96ba44946b3e88b6aa305c4363cbbfeab0d9120b3d8c4d2587d68b9293ea7cc6
This commit is contained in:
stephan
2022-12-23 23:46:33 +00:00
parent ab9c2d571e
commit 027afccdcd
6 changed files with 240 additions and 88 deletions
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44
ext/wasm/common/whwasmutil.js
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@ -1406,7 +1406,8 @@ self.WhWasmUtilInstaller = function(target){
.set('int', xArg.get('i32'))
.set('null', (i)=>i)
.set(null, xArg.get('null'))
.set('**', __xArgPtr);
.set('**', __xArgPtr)
.set('*', __xArgPtr);
xResult.set('*', __xArgPtr)
.set('pointer', __xArgPtr)
.set('number', (v)=>Number(v))
@ -1448,23 +1449,23 @@ self.WhWasmUtilInstaller = function(target){
if('string'===typeof v) return target.scopedAllocCString(v);
return v ? __xArgPtr(v) : null;
};
xArg.set('string', __xArgString);
xArg.set('utf8', __xArgString);
xArg.set('pointer', __xArgString);
xArg.set('*', __xArgString);
xArg.set('string', __xArgString)
.set('utf8', __xArgString)
.set('pointer', __xArgString);
//xArg.set('*', __xArgString);
xResult.set('string', (i)=>target.cstrToJs(i));
xResult.set('utf8', xResult.get('string'));
xResult.set('string:dealloc', (i)=>{
try { return i ? target.cstrToJs(i) : null }
finally{ target.dealloc(i) }
});
xResult.set('utf8:dealloc', xResult.get('string:dealloc'));
xResult.set('json', (i)=>JSON.parse(target.cstrToJs(i)));
xResult.set('json:dealloc', (i)=>{
try{ return i ? JSON.parse(target.cstrToJs(i)) : null }
finally{ target.dealloc(i) }
});
xResult.set('string', (i)=>target.cstrToJs(i))
.set('utf8', xResult.get('string'))
.set('string:dealloc', (i)=>{
try { return i ? target.cstrToJs(i) : null }
finally{ target.dealloc(i) }
})
.set('utf8:dealloc', xResult.get('string:dealloc'))
.set('json', (i)=>JSON.parse(target.cstrToJs(i)))
.set('json:dealloc', (i)=>{
try{ return i ? JSON.parse(target.cstrToJs(i)) : null }
finally{ target.dealloc(i) }
});
/**
Internal-use-only base class for FuncPtrAdapter and potentially
@ -1748,10 +1749,13 @@ self.WhWasmUtilInstaller = function(target){
- `N*` (args): a type name in the form `N*`, where N is a numeric
type name, is treated the same as WASM pointer.
- `*` and `pointer` (args): have multple semantics. They
behave exactly as described below for `string` args.
- `*` and `pointer` (args): are assumed to be WASM pointer values
and are returned coerced to an appropriately-sized pointer
value (i32 or i64). Non-numeric values will coerce to 0 and
out-of-range values will have undefined results (just as with
any pointer misuse).
- `*` and `pointer` (results): are aliases for the current
- `*` and `pointer` (results): aliases for the current
WASM pointer numeric type.
- `**` (args): is simply a descriptive alias for the WASM pointer