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@assemblyscript/rtrace
Advanced tools
A tiny utility to sanitize the AssemblyScript runtime. Records allocations and frees performed by the runtime and emits an error if something is off. Also checks for leaks.
Compile your module that uses the full or half runtime with -use ASC_RTRACE=1 --exportStart _initialize
and include an instance of this module as the import named rtrace
.
const rtrace = new Rtrace({
onerror(err, info) {
// handle error
},
oninfo(msg) {
// print message, optional
},
getMemory() {
// obtain the module's memory,
// e.g. using --exportStart:
return instance.exports.memory;
}
});
const { module, instance } = await WebAssembly.instantiate(...,
rtrace.install({
...imports...
})
);
instance.exports._initialize();
...
if (rtrace.active) {
let leakCount = rtr.check();
if (leakCount) {
// handle error
}
}
Note that references in globals which are not cleared before collection is performed appear as leaks, including their inner members. A TypedArray would leak itself and its backing ArrayBuffer in this case for example. This is perfectly normal and clearing all globals avoids this.
FAQs
A tiny utility to sanitize the AssemblyScript runtime.
The npm package @assemblyscript/rtrace receives a total of 42 weekly downloads. As such, @assemblyscript/rtrace popularity was classified as not popular.
We found that @assemblyscript/rtrace demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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