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Handle cyclic references in GenericEvaluationEngine

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This commit is contained in:
fwcd
2020-09-02 17:33:00 +02:00
parent abfa44b4f9
commit 0ce1b02b2c
1 changed files with 20 additions and 6 deletions
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26
extension/src/EvaluationWatchService/EvaluationEngine/GenericEvaluationEngine.ts
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@@ -58,7 +58,7 @@ export class GenericEvaluator implements Evaluator {
name: "Generic",
priority: 1,
},
data: await this.constructObjectFromVariablesReference(reply.variablesReference),
data: await this.constructObjectFromVariablesReference(reply.variablesReference, {}),
},
}
} else {
@@ -88,15 +88,29 @@ export class GenericEvaluator implements Evaluator {
}
}
private async constructObjectFromVariablesReference(variablesReference: number): Promise<any> {
private async constructObjectFromVariablesReference(variablesReference: number, knownObjects: { [ref: number]: any; }): Promise<any> {
var result: any = {};
for (const child of await this.session.getVariables({ variablesReference })) {
if (child.variablesReference > 0) {
result[child.name] = await this.constructObjectFromVariablesReference(child.variablesReference);
knownObjects[variablesReference] = result;
for (const variable of await this.session.getVariables({ variablesReference })) {
let child: any;
if (variable.variablesReference > 0) {
if (variable.variablesReference in knownObjects) {
// If the object is known, we have a (potentially cyclic) reference
child = knownObjects[variable.variablesReference];
} else {
// Recurse on a new object
child = await this.constructObjectFromVariablesReference(variable.variablesReference, knownObjects);
}
} else {
result[child.name] = child.value;
// If there are no childs, just assign the value
child = variable.value;
}
result[variable.name] = child;
}
return result;
}