harmony 鸿蒙ArkTS Changelog
ArkTS Changelog
cl.ArkTS.1 Lazy Import Now Does Not Affect the Timing of Asynchronous Task Execution
Access Level
Other
Reason for Change
The use of lazy import variables changes the timing of asynchronous task execution.
Change Impact
This change is a non-compatible change.
Before change: Using lazy import variables changes the timing of asynchronous task execution.
After change: Using lazy import variables does not change the timing of asynchronous task execution.
Start API Level
12
Change Since
OpenHarmony SDK 5.0.1.44
Key API/Component Changes
N/A
Adaptation Guide
Check all the scenarios where lazy import variables are used.
An example use scenario is as follows:
// myLog.ets
export class MyLog {
static log(s:string) {
console.log(s);
}
}
// test.ets
import lazy { MyLog } from './myLog'
async function asyncFunc(f?:string): Promise<number> {
MyLog.log("asyncFunc start");
return new Promise(resolve => {
resolve(0);
});
}
export async function taskTest() {
MyLog.log("taskTest start");
asyncFunc().then((res) => {
MyLog.log("asyncFunc then");
});
MyLog.log("taskTest end");
}
Before the change, lazy import affects the timing of asynchronous task execution. The output is as follows:
taskTest start
asyncFunc start
asyncFunc then
taskTest end
After the change, the output is as follows:
taskTest start
asyncFunc start
taskTest end
asyncFunc then
This change fixes the defect so that lazy import does not affect the timing of asynchronous task execution.
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