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

NEO•ONE TypeScript smart contract compiler.

import { Helper } from '../Helper';
export class RawIteratorForEachFuncBaseHelper extends Helper {
    constructor({ handleNext, hasFilter = false }) {
        super();
        this.handleNext = handleNext;
        this.hasFilter = hasFilter;
    }
    emit(sb, node, optionsIn) {
        const options = sb.pushValueOptions(optionsIn);
        sb.emitHelper(node, options, sb.helpers.getCallable({}));
        sb.emitOp(node, 'SWAP');
        sb.emitHelper(node, options, sb.helpers.forLoop({
            condition: () => {
                sb.emitOp(node, 'DUP');
                sb.emitSysCall(node, 'Neo.Enumerator.Next');
            },
            each: (innerOptionsIn) => {
                const innerOptions = sb.pushValueOptions(innerOptionsIn);
                sb.emitOp(node, 'DUP');
                const handleCall = () => {
                    sb.emitPushInt(node, 2);
                    sb.emitOp(node, 'PICK');
                    sb.emitHelper(node, sb.noPushValueOptions(innerOptions), sb.helpers.call);
                };
                if (this.hasFilter) {
                    sb.emitHelper(node, innerOptions, sb.helpers.if({
                        condition: () => {
                            this.handleNext(innerOptions);
                        },
                        whenTrue: () => {
                            handleCall();
                        },
                        whenFalse: () => {
                            sb.emitOp(node, 'DROP');
                        },
                    }));
                }
                else {
                    this.handleNext(innerOptions);
                    handleCall();
                }
            },
            cleanup: () => {
                sb.emitOp(node, 'DROP');
                sb.emitOp(node, 'DROP');
            },
        }));
    }
}

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