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import { createCanvas } from 'canvas';
import fs from 'node:fs';
const canvas = createCanvas(500, 500);
const context = canvas.getContext('2d');
canvas.width = 1000; // <------- crashes
context.fillStyle = 'green';
context.fillRect(10, 10, 150, 100);
const pngStream = canvas.createPNGStream();
const out = fs.createWriteStream('./output.png');
pngStream.pipe(out);
out.once('finish', () => {
console.log('✓ saved as output.png');
});When setting the width/height of the canvas-element (version 3.1.0) after creating it, node 24 crashes. When running the code above with node 23.11.0, everything works as expected. When using 24.0.1, it crashes with the following stack trace:
stack trace
#
# Fatal error in , line 0
# Check failed: static_cast<int64_t>(amount_before) >= -delta.
#
#
#
#FailureMessage Object: 0x7ffc059c7910
----- Native stack trace -----
1: 0x111d431 [node]
2: 0x2ccf773 V8_Fatal(char const*, ...) [node]
3: 0x15cc9a5 [node]
4: 0x1357ce3 v8::Isolate::AdjustAmountOfExternalAllocatedMemory(long) [node]
5: 0x1015660 napi_adjust_external_memory [node]
6: 0x7736d02594df non-virtual thunk to ImageBackend::destroySurface() [/home/user/canvas-test/node_modules/canvas/build/Release/canvas.node]
7: 0x7736d024afca Backend::setWidth(int) [/home/user/canvas-test/node_modules/canvas/build/Release/canvas.node]
8: 0x7736d027b7a8 Canvas::SetWidth(Napi::CallbackInfo const&, Napi::Value const&) [/home/user/canvas-test/node_modules/canvas/build/Release/canvas.node]
9: 0x7736d02834bc napi_value__* Napi::InstanceWrap<Canvas>::WrappedMethod<&Canvas::SetWidth>(napi_env__*, napi_callback_info__*) [/home/user/canvas-test/node_modules/canvas/build/Release/canvas.node]
10: 0x1005e01 [node]
11: 0x1393362 v8::internal::Builtins::InvokeApiFunction(v8::internal::Isolate*, bool, v8::internal::DirectHandle<v8::internal::FunctionTemplateInfo>, v8::internal::DirectHandle<v8::internal::Object>, v8::base::Vector<v8::internal::DirectHandle<v8::internal::Object> const>, v8::internal::DirectHandle<v8::internal::HeapObject>) [node]
12: 0x18f0185 v8::internal::Object::SetPropertyWithAccessor(v8::internal::LookupIterator*, v8::internal::DirectHandle<v8::internal::Object>, v8::Maybe<v8::internal::ShouldThrow>) [node]
13: 0x1911ad4 v8::internal::Object::SetProperty(v8::internal::LookupIterator*, v8::internal::DirectHandle<v8::internal::Object>, v8::internal::StoreOrigin, v8::Maybe<v8::internal::ShouldThrow>) [node]
14: 0x16ce17b v8::internal::StoreIC::Store(v8::internal::Handle<v8::internal::Union<v8::internal::Smi, v8::internal::HeapNumber, v8::internal::BigInt, v8::internal::String, v8::internal::Symbol, v8::internal::Boolean, v8::internal::Null, v8::internal::Undefined, v8::internal::JSReceiver> >, v8::internal::Handle<v8::internal::Name>, v8::internal::DirectHandle<v8::internal::Object>, v8::internal::StoreOrigin) [node]
15: 0x16ceccd v8::internal::Runtime_StoreIC_Miss(int, unsigned long*, v8::internal::Isolate*) [node]
16: 0x7736b2636636
Trace/breakpoint trap (core dumped)
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