## Input

```javascript
// When an object's properties are only read conditionally, we should

import {identity} from 'shared-runtime';

// track the base object as a dependency.
function useOnlyConditionalDependencies({props, cond}) {
  const x = {};
  if (identity(cond)) {
    x.b = props.a.b;
    x.c = props.a.b.c;
  }
  return x;
}

export const FIXTURE_ENTRYPOINT = {
  fn: useOnlyConditionalDependencies,
  params: [{props: {a: {b: 2}}, cond: true}],
  sequentialRenders: [
    {props: {a: {b: 2}}, cond: true},
    {props: null, cond: false},
    // check we preserve nullthrows
    {props: {a: {b: {c: undefined}}}, cond: true},
    {props: {a: {b: undefined}}, cond: true},
    {props: {a: {b: {c: undefined}}}, cond: true},
    {props: undefined, cond: true},
  ],
};

```

## Code

```javascript
import { c as _c } from "react/compiler-runtime"; // When an object's properties are only read conditionally, we should

import { identity } from "shared-runtime";

// track the base object as a dependency.
function useOnlyConditionalDependencies(t0) {
  const $ = _c(3);
  const { props, cond } = t0;
  let x;
  if ($[0] !== cond || $[1] !== props) {
    x = {};
    if (identity(cond)) {
      x.b = props.a.b;
      x.c = props.a.b.c;
    }
    $[0] = cond;
    $[1] = props;
    $[2] = x;
  } else {
    x = $[2];
  }

  return x;
}

export const FIXTURE_ENTRYPOINT = {
  fn: useOnlyConditionalDependencies,
  params: [{ props: { a: { b: 2 } }, cond: true }],
  sequentialRenders: [
    { props: { a: { b: 2 } }, cond: true },
    { props: null, cond: false },
    // check we preserve nullthrows
    { props: { a: { b: { c: undefined } } }, cond: true },
    { props: { a: { b: undefined } }, cond: true },
    { props: { a: { b: { c: undefined } } }, cond: true },
    { props: undefined, cond: true },
  ],
};

```
      
### Eval output
(kind: ok) {"b":2}
{}
{"b":{}}
[[ (exception in render) TypeError: Cannot read properties of undefined (reading 'c') ]]
{"b":{}}
[[ (exception in render) TypeError: Cannot read properties of undefined (reading 'a') ]]