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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | 1x 1x 1x 1x 1x 13x 13x 13x 13x 13x 13x 13x 1x 13x 13x 13x 2x 2x 2x 11x 13x 2x 2x 9x 13x 1x 13x 13x 2x 2x 2x 2x 2x 13x 1x | import type { ExpressionState } from '../../expression-state.js';
import { TypedValue } from '../../typed-value.js';
import { Operator } from '../spel-node.js';
import type { TypeDescriptor } from '../../type/type-descriptor.js';
import { NodeType } from '../../language/node-type.js';
export class OpInstanceof extends Operator {
constructor(
operatorName: string,
startPos: number,
endPos: number,
...operands: import('../spel-node.js').SpelNodeImpl[]
) {
super(NodeType.OP_INSTANCEOF, operatorName, startPos, endPos, ...operands);
}
public override getValueInternal(state: ExpressionState): TypedValue {
const left = this.children[0]!.getValue(state).getValue();
const rightRaw = this.children[1]!.getValue(state).getValue();
// instanceof T(Type): right side resolves to a TypeDescriptor
if (this.isTypeDescriptor(rightRaw)) {
const td = rightRaw as TypeDescriptor;
return new TypedValue(td.isInstance(left));
}
// String-based: 'string', 'number', 'boolean', 'null', 'object'
const typeName = String(rightRaw);
if (typeName === 'null') {
return new TypedValue(left === null);
}
return new TypedValue(typeof left === typeName);
}
private isTypeDescriptor(value: unknown): boolean {
return (
typeof value === 'object' &&
value !== null &&
'name' in value &&
'constructor' in value &&
'isInstance' in value &&
typeof (value as Record<string, unknown>).isInstance === 'function'
);
}
}
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