@neo-one/smart-contract-compiler
Version:
NEO•ONE TypeScript smart contract compiler.
40 lines (38 loc) • 1.37 kB
JavaScript
import { Helper } from '../Helper';
export class GetStorageHelper extends Helper {
emit(sb, node, options) {
if (!options.pushValue) {
sb.emitOp(node, 'DROP');
return;
}
sb.emitHelper(node, options, sb.helpers.deleteCacheStorage);
sb.emitOp(node, 'OVER');
sb.emitHelper(node, options, sb.helpers.if({
condition: () => {
sb.emitOp(node, 'HASKEY');
},
whenTrue: () => {
sb.emitOp(node, 'DROP');
sb.emitPushBuffer(node, Buffer.alloc(0, 0));
},
whenFalse: () => {
sb.emitHelper(node, options, sb.helpers.cacheStorage);
sb.emitOp(node, 'TUCK');
sb.emitOp(node, 'OVER');
sb.emitHelper(node, options, sb.helpers.if({
condition: () => {
sb.emitOp(node, 'HASKEY');
},
whenTrue: () => {
sb.emitOp(node, 'PICKITEM');
},
whenFalse: () => {
sb.emitOp(node, 'NIP');
sb.emitHelper(node, options, sb.helpers.getStorageBase);
},
}));
},
}));
}
}
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