@neo-one/smart-contract-compiler
Version:
NEO•ONE TypeScript smart contract compiler.
68 lines (66 loc) • 10.6 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const Helper_1 = require("../../Helper");
class FindObjectPropertyHelperBase extends Helper_1.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();
},
}));
}
}
exports.FindObjectPropertyHelperBase = FindObjectPropertyHelperBase;
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ts from 'typescript';\n\nimport { ScriptBuilder } from '../../../sb';\nimport { VisitOptions } from '../../../types';\nimport { Helper } from '../../Helper';\n\nexport interface FindObjectPropertyHelperBaseOptions {\n  readonly whenHasProperty: () => void;\n  readonly whenNotHasProperty: () => void;\n  readonly getObject: (sb: ScriptBuilder) => Helper;\n}\n\n// Input: [stringProp, objectVal]\nexport class FindObjectPropertyHelperBase extends Helper {\n  private readonly whenHasProperty: () => void;\n  private readonly whenNotHasProperty: () => void;\n  private readonly getObject: (sb: ScriptBuilder) => Helper;\n\n  public constructor({ whenHasProperty, whenNotHasProperty, getObject }: FindObjectPropertyHelperBaseOptions) {\n    super();\n    this.whenHasProperty = whenHasProperty;\n    this.whenNotHasProperty = whenNotHasProperty;\n    this.getObject = getObject;\n  }\n\n  public emit(sb: ScriptBuilder, node: ts.Node, options: VisitOptions): void {\n    if (!options.pushValue) {\n      sb.emitOp(node, 'DROP');\n      sb.emitOp(node, 'DROP');\n\n      return;\n    }\n\n    // [objectVal, prop]\n    sb.emitOp(node, 'SWAP');\n\n    const prepareLoop = () => {\n      // [objectVal, objectVal, prop]\n      sb.emitOp(node, 'DUP');\n      // [pobj, objectVal, prop]\n      sb.emitHelper(node, options, sb.helpers.getPropertyObject);\n      // [pobj, pobj, objectVal, prop]\n      sb.emitOp(node, 'DUP');\n      // [objectVal, pobj, pobj, prop]\n      sb.emitOp(node, 'ROT');\n      // [obj, pobj, pobj, prop]\n      sb.emitHelper(node, options, this.getObject(sb));\n      // [obj, obj, pobj, pobj, prop]\n      sb.emitOp(node, 'DUP');\n      // [4, obj, obj, pobj, pobj, prop]\n      sb.emitPushInt(node, 4);\n      // [prop, obj, obj, pobj, pobj, prop]\n      sb.emitOp(node, 'PICK');\n    };\n\n    // [prop, obj, obj, pobj, pobj, prop]\n    prepareLoop();\n\n    sb.emitHelper(\n      node,\n      options,\n      sb.helpers.forLoop({\n        condition: () => {\n          // [hasKey, obj, pobj, pobj, prop]\n          sb.emitOp(node, 'HASKEY');\n          // [notHasKey, obj, pobj, pobj, prop]\n          sb.emitOp(node, 'NOT');\n          // [pobj, notHasKey, obj, pobj, prop]\n          sb.emitOp(node, 'ROT');\n          // ['__proto__', pobj, notHasKey, obj, pobj, prop]\n          sb.emitPushString(node, '__proto__');\n          // [hasPrototypeKey, notHasKey, obj, pobj, prop]\n          sb.emitOp(node, 'HASKEY');\n          // [condition, obj, pobj, prop]\n          sb.emitOp(node, 'BOOLAND');\n        },\n        each: () => {\n          // [pobj, prop]\n          sb.emitOp(node, 'DROP');\n          // ['__proto__', pobj, prop]\n          sb.emitPushString(node, '__proto__');\n          // [propVal, prop]\n          sb.emitOp(node, 'PICKITEM');\n          // [0, propVal, prop]\n          sb.emitPushInt(node, 0);\n          // [objectVal, prop]\n          sb.emitOp(node, 'PICKITEM');\n          // [prop, obj, obj, pobj, pobj, prop]\n          prepareLoop();\n        },\n        cleanup: () => {\n          // do nothing\n        },\n      }),\n    );\n    // [obj, prop]\n    sb.emitOp(node, 'NIP');\n    // [obj, prop, obj]\n    sb.emitOp(node, 'TUCK');\n    // [prop, obj, prop, obj]\n    sb.emitOp(node, 'OVER');\n    // [val]\n    sb.emitHelper(\n      node,\n      options,\n      sb.helpers.if({\n        condition: () => {\n          // [hasKey, prop, obj]\n          sb.emitOp(node, 'HASKEY');\n        },\n        whenTrue: () => {\n          this.whenHasProperty();\n        },\n        whenFalse: () => {\n          this.whenNotHasProperty();\n        },\n      }),\n    );\n  }\n}\n"]}