@neo-one/smart-contract-compiler-esnext-esm
Version:
NEO•ONE TypeScript smart contract compiler.
65 lines (63 loc) • 2.17 kB
JavaScript
import { Helper } from '../../Helper';
export class FindObjectPropertyHelperBase extends Helper {
constructor({ whenHasProperty, whenNotHasProperty, getObject }) {
super();
this.whenHasProperty = whenHasProperty;
this.whenNotHasProperty = whenNotHasProperty;
this.getObject = getObject;
}
emit(sb, node, options) {
if (!options.pushValue) {
sb.emitOp(node, 'DROP');
sb.emitOp(node, 'DROP');
return;
}
sb.emitOp(node, 'SWAP');
const prepareLoop = () => {
sb.emitOp(node, 'DUP');
sb.emitHelper(node, options, sb.helpers.getPropertyObject);
sb.emitOp(node, 'DUP');
sb.emitOp(node, 'ROT');
sb.emitHelper(node, options, this.getObject(sb));
sb.emitOp(node, 'DUP');
sb.emitPushInt(node, 4);
sb.emitOp(node, 'PICK');
};
prepareLoop();
sb.emitHelper(node, options, sb.helpers.forLoop({
condition: () => {
sb.emitOp(node, 'HASKEY');
sb.emitOp(node, 'NOT');
sb.emitOp(node, 'ROT');
sb.emitPushString(node, '__proto__');
sb.emitOp(node, 'HASKEY');
sb.emitOp(node, 'BOOLAND');
},
each: () => {
sb.emitOp(node, 'DROP');
sb.emitPushString(node, '__proto__');
sb.emitOp(node, 'PICKITEM');
sb.emitPushInt(node, 0);
sb.emitOp(node, 'PICKITEM');
prepareLoop();
},
cleanup: () => {
},
}));
sb.emitOp(node, 'NIP');
sb.emitOp(node, 'TUCK');
sb.emitOp(node, 'OVER');
sb.emitHelper(node, options, sb.helpers.if({
condition: () => {
sb.emitOp(node, 'HASKEY');
},
whenTrue: () => {
this.whenHasProperty();
},
whenFalse: () => {
this.whenNotHasProperty();
},
}));
}
}
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