@neo-one/smart-contract-compiler/dist/esm/compile/helper/storage/IterStorageHelper.js

NEO•ONE TypeScript smart contract compiler.

import { Helper } from '../Helper';
export class IterStorageHelper extends Helper {
    emit(sb, node, optionsIn) {
        const options = sb.pushValueOptions(optionsIn);
        sb.emitOp(node, 'DUP');
        sb.emitSysCall(node, 'Neo.Storage.GetReadOnlyContext');
        sb.emitSysCall(node, 'Neo.Storage.Find');
        sb.emitOp(node, 'SWAP');
        const key = sb.scope.addUnique();
        sb.scope.set(sb, node, options, key);
        sb.emitHelper(node, options, sb.helpers.cacheStorage);
        sb.emitHelper(node, options, sb.helpers.mapFilter({
            map: (innerOptions) => {
                sb.emitOp(node, 'NIP');
                sb.scope.get(sb, node, innerOptions, key);
                sb.emitOp(node, 'TUCK');
                sb.emitOp(node, 'SIZE');
                sb.emitOp(node, 'LEFT');
                sb.emitOp(node, 'EQUAL');
            },
        }));
        sb.emitSysCall(node, 'Neo.Iterator.Create');
        sb.emitSysCall(node, 'Neo.Iterator.Concat');
    }
}

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