@neo-one/smart-contract-compiler/dist/esm/compile/helper/iterator/RawEnumeratorFindHelper.js

NEO•ONE TypeScript smart contract compiler.

import { Helper } from '../Helper';
export class RawEnumeratorFindHelper extends Helper {
    constructor(options) {
        super();
        this.each = options.each;
    }
    emit(sb, node, optionsIn) {
        const options = sb.pushValueOptions(optionsIn);
        sb.emitHelper(node, options, sb.helpers.rawEnumeratorFilter({
            each: this.each,
        }));
        sb.emitOp(node, 'DUP');
        sb.emitHelper(node, options, sb.helpers.if({
            condition: () => {
                sb.emitOp(node, 'ARRAYSIZE');
                sb.emitPushInt(node, 0);
                sb.emitOp(node, 'NUMEQUAL');
            },
            whenTrue: () => {
                sb.emitOp(node, 'DROP');
                sb.emitHelper(node, options, sb.helpers.wrapUndefined);
            },
            whenFalse: () => {
                sb.emitPushInt(node, 0);
                sb.emitOp(node, 'PICKITEM');
            },
        }));
    }
}

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