AssemblyScript compiles a strict variant of TypeScript (basically JavaScript with types) to WebAssembly.
Questions tagged [assemblyscript]
101 questions
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Integration of KonvaJS with webassembly
I am working on a project where I have a requirement to render millions of shapes. The file which has information on all coordinates can have a size of ~500MB. I am planning to use web assembly in this so that I can use system memory for my complex…
Vikram Jain
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Allocation too large< ~lib/rt/itcms.ts<$Index out of range,~lib/rt.ts when execute AssemblyScript code
I'm stuck on this when learing web assembly.
basically I have this index.ts file written in assembly script
// The entry file of your WebAssembly module.
class Animal {
constructor() {}
name: i32;
age: i32;
}
export function newAnimal(): i32…
Anh Thi
- 51
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- 5
1
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1 answer
Handling exception for invalid json format for `assemblyscript-json` in `JSON.parse`
The following works:
let jsonObj: JSON.Obj = (JSON.parse('{"hello": "world", "value": 24}'));
but if jsonString has an invalid json format, it breaks my subgraph.
Using:
"@graphprotocol/graph-cli": "0.35.0",
"@graphprotocol/graph-ts":…
Sami
- 45
- 4
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0 answers
AssemblyScript Node.js RuntimeError: memory access out of bounds
I wrote a trivial AssemblyScript function:
export function F(s: string): i32 {
return s.length;
}
Loading and using the resulting F.wasm in the browser WORKS WELL while I got RuntimeError: memory access out of bounds using Node.js (on Windows,…
Bab64
- 99
- 8
1
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0 answers
Passing Javascript references to AssemblyScript
Is it possible to pass a Javascript ref type to assemblyScript solely for the purposes of being retrieved again later? To be clear, I do not want to access the JS object from the WASM side in any way. So no typing should be necessary, I literally…
spike
- 11
- 3
1
vote
1 answer
Obtaining a random Integer in AssemblyScript
In the AsemblyScript book it mentions that Math.random() takes a seed and returns an value. I just need a random value. How do I achive that?
I tried
(Math.random() * 0xffffffffffffffff) as u64
(Math.random() *…
Redu
- 25,060
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1 answer
Calling list elements by index in assembly script map function causing compilation error
I'm using nodeJS along with assemblyscript to test out webassembly. I tried writing a simple python style zip function hoping it would work as intended. But for some reason every time I hit compile, it throws an error with basically no description…
Reuben Jacob Mathew
- 98
- 8
1
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2 answers
Why number 10_000_000_000 in JS becomes 1410065408 in webassembly?
I made a very simple wasm with the following text format. The function just return the i32 parameter.
(module
(type $i32_=>_i32 (func (param i32) (result i32)))
(memory $0 0)
(export "sum" (func $assembly/index/sum))
(export "memory" (memory…
KKKKim
- 11
- 1
1
vote
1 answer
Type script array push doesn't do anything
I'd like to lead off with, this isn't the async issues that other people have posted about where their pushes aren't doing anything. Here is my code
function createHolderPosition(holder: Holder, position: Position): void {
if(holder.positions ==…
Steve
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1 answer
Is it possible to use string literal types in AssemblyScript?
Is it possible to create a string literal type in AssemblyScript that resembles the type keyword used in TypeScript?
TypeScript example:
export type MyType = 'foo' | 'bar';
John
- 10,165
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1
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1 answer
Assemblyscript Class Inheritance - Type Casting
Is there a way to cast from a base class into a derived one?
class A{}
class B extends A{}
const b = new B()
const a:A = b //casts to base class ok
const b2:B = a //Error: Type 'A' is not assignable to type 'B'
chantey
- 4,252
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0 answers
Near: AssemblyScript NEP141 is not showed in wallet
I was trying to build a NEP141 token with assemblyscript and to deploy it on the Near Network, but, after the deployment, I'm not able to see it on the wallet.
I checked my work with the one in this video from the Near YouTube channel and our…
Doc_failure
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0 answers
Assemblyscript operator overloading with syntax highlighting
I have written a simple Vector3 class in assemblyscript. The code compiles just fine but the typescript syntax highlighter naturally doesn't understand the operator overloads. Is there a way for typescript to resolve the type from assemblyscript…
chantey
- 4,252
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Cannot use u128 to represent money/price in smart contract model
import { context, u128, storage, logging, PersistentUnorderedMap } from "near-sdk-as";
@nearBindgen
export class MyItem{
id: u64;
type: u32;
price: u128; // This is causing the deserialization error
}
When including this fragment of code in…
sgraphics
- 61
- 4
1
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2 answers
Issues adding NEAR tokens in assemblyscript smart contract using u128.add() function
I have been facing issues with the use of u128.add(a, b) function. The two u128 values do not get added and I am afraid I am doing something wrong. I have checked LEARN-NEAR github page for sample projects and even changed my code to follow the…
Aishat Akinyemi
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