Commit Graph

1524 Commits

Author SHA1 Message Date
Valentin Shergin d272334186 RCTRootView is now has empty autoresizing mask by default
Summary: `autoresizingMask` is supposed to be set outside self class, this is UIKit convention.

Reviewed By: mmmulani

Differential Revision: D4697098

fbshipit-source-id: 7e0aa5d3032184de980b3cecafebbc4ce8ef9ada
2017-03-19 22:01:56 -07:00
Valentin Shergin 64c327ae68 Fixed issue where setting `zero scale` transfrom matrix to UIView brokes `hitTest` mechanism
Summary:
The Math Strikes Back

Several related things:
 * When we specify `scale: 0;` style for some view it ends up with calling `CATransform3DScale` with zero scale parameter.
 * In this case `CATransform3DScale` returns transform matrix full of zeros. It actually depends on representation and matrix-type (2d or 3d) but in UIView debugger it appears as [0, 0, 0, 0, ...]. And probably it is correct result.
 * By default, for hit-testing, UIKit uses specially optimized logic based on GPU/CALayer infrastructure under the hood. And the transform matrix full of zeros breaks this algorithm. I guess, it happens because zero-matrix doesn't quite make sense.

So, `scale: 0;` is a weird edge case, and in this diff, we are trying to illuminate it by replacing with epsilon value.

Related SO issues:
http://stackoverflow.com/questions/25964224/cgaffinetransformscale-not-working-with-zero-scale
http://stackoverflow.com/questions/7937369/animate-uiview-scale-to-zero

Reviewed By: blairvanderhoof

Differential Revision: D4734475

fbshipit-source-id: 7241cdffa86c05a6552860a25789e2281588ba23
2017-03-19 22:01:55 -07:00
Ashwin Bharambe f48b54bf62 Expose RCTImageLocalAssetURL as a utility
Reviewed By: javache

Differential Revision: D4696627

fbshipit-source-id: 56d3e59983f524dfd5021835734b9b34203e20f2
2017-03-17 17:02:06 -07:00
Ashwin Bharambe 95c1926193 Introduce `DeviceInfo` as a new native module
Summary:
The `UIManager` already has a lot of responsibilities and is deeply
tied with React Native's view architecture. This diff separates out a
`DeviceInfo` native module to provide information about screen dimensions and
font scale, etc.

Reviewed By: fkgozali

Differential Revision: D4713834

fbshipit-source-id: f2ee93acf876a4221c29a8c731f5abeffbb97974
2017-03-17 17:01:57 -07:00
Pieter De Baets ce270220e4 Extract module registry creation to helper
Reviewed By: mhorowitz

Differential Revision: D4721817

fbshipit-source-id: 2fa17ca5317a57d429aa75d6c1865932af27e02f
2017-03-17 07:08:14 -07:00
Pieter De Baets ea069b69de Make Cxx modules lazy on iOS
Reviewed By: mhorowitz

Differential Revision: D4716040

fbshipit-source-id: 08cc1317e15f0b3bd1df6d76c483a560f5c43d53
2017-03-17 07:08:14 -07:00
Pieter De Baets 73e81b87d3 Remove unused onNativeException delegate method
Reviewed By: mhorowitz

Differential Revision: D4597914

fbshipit-source-id: 82a109d1e6d8b0c93380840c22ec74dc75ab1a45
2017-03-17 07:08:14 -07:00
Pieter De Baets d7b37c4050 Remove JsToNativeBridge's nativeQueue
Reviewed By: mhorowitz

Differential Revision: D4589737

fbshipit-source-id: 3b2730417d99c4f98cfaad386bc50328f2551592
2017-03-17 07:08:14 -07:00
Jakub Woyke b8cc75c613 Don't call libc malloc and free directly from assembly
Reviewed By: strager, javache

Differential Revision: D4484300

fbshipit-source-id: 97b9c2e9525f38c9158cfb499ba93d1af7d84b69
2017-03-16 12:34:06 -07:00
Ashok Menon d5dda1b136 Adding in missing wrapper invocation.
Reviewed By: javache

Differential Revision: D4714260

fbshipit-source-id: 641dfd07e8161bedf31cfd4cf94b1dc64beec0f9
2017-03-15 18:30:20 -07:00
ShiHui 1195a8f3e6 Fix RCTPicker crash
Summary:
If user slide picker when picker item is zero, `UIPickerViewDelegate` will call `pickerView:didSelectRow:inComponent` row=0, `_items[row][@"value"]` will crash.
Closes https://github.com/facebook/react-native/pull/12187

Differential Revision: D4709882

Pulled By: mkonicek

fbshipit-source-id: 772c819d4eaef41ac983287877bda2918f40b1a7
2017-03-14 17:46:24 -07:00
Janic Duplessis 22151d28d4 Fix ReactCxx xcodeproj
Summary:
The ReactCxx project was not updated when RCTMap was removed in 48f30eca7e, this fixes it. It was also missing the systemJSCWrapper.cpp file.

**Test plan**
Tested that UIExplorerCxx now builds

cc mkonicek
Closes https://github.com/facebook/react-native/pull/12919

Differential Revision: D4709498

Pulled By: mkonicek

fbshipit-source-id: 995a1a914ab0a3227b1219c575a84d136800ff19
2017-03-14 16:46:00 -07:00
Marc Horowitz e622d51e20 Support ModuleHolder-based lazy init of C++ modules with C++ bridge on android
Reviewed By: AaaChiuuu

Differential Revision: D4614479

fbshipit-source-id: 109ac34b8688f0113675e4a4479d1ddcc6169ed4
2017-03-14 15:35:01 -07:00
Valentin Shergin 98798a06ae More accurate implementation of `RCTRootView`'s `sizeThatFits:`
Reviewed By: mmmulani

Differential Revision: D4672788

fbshipit-source-id: 780487f2264916349e32785808a93ed6f957e471
2017-03-13 13:30:31 -07:00
Pieter De Baets 41f3d0cf2d Expose getter for 'flex' property
Summary: Helps mitigate part of https://github.com/facebook/react-native/pull/12245 while we wait for a more comprehensive solution.

Reviewed By: emilsjolander

Differential Revision: D4571776

fbshipit-source-id: 185cd1b0d3af37724136a37471df412c2000dfe4
2017-03-13 06:00:19 -07:00
Douglas Lowder 02a6621e23 Add systemJSCWrapper.cpp to React-tvOS target
Summary:
**Motivation**: Fix Apple TV build breakage

**Test plan**: This fixes Travis test that builds tvOS targets.
Closes https://github.com/facebook/react-native/pull/12869

Differential Revision: D4692883

fbshipit-source-id: 3babfe4ab6d80143e15410bff7cae41ada3bf09f
2017-03-10 16:30:33 -08:00
Martin Konicek a8bd4621af Try to fix tvOS and podspec builds
Summary: Closes https://github.com/facebook/react-native/pull/12866

Differential Revision: D4691348

Pulled By: ericvicenti

fbshipit-source-id: df7d611aa4ed3fed6158d2210a0403c90875b7c3
2017-03-10 13:17:18 -08:00
Theo Yaung acb9fa8f66 Refactor dependencies
Reviewed By: mkonicek

Differential Revision: D4689351

fbshipit-source-id: 35e6939379dcb6723e7749883ad9613459f9787b
2017-03-10 09:15:50 -08:00
Martin Konicek 5c24a9110a Update Boost dependency to 1.63 on iOS
Summary:
We use this version internally.
Closes https://github.com/facebook/react-native/pull/12838

Differential Revision: D4688982

Pulled By: mkonicek

fbshipit-source-id: d8a6f8168b9e71ff4f53a8c18d55dc5a759a9183
2017-03-10 05:45:28 -08:00
Valentin Shergin 264d60b979 Setting `availableSize` for `RCTRootShadowView` on earlier stage
Summary:
Moving setting `availableSize` for `RCTRootShadowView` on earlier stage allows to prevent situations where `availableSize` is not specified yet, but Yoga layout is already happening.
Because `availableSize` equals {infinity, infinity} by default (in this case), Yoga returns a lot of nodes with infinit metrics, which confises UIKit.

Reviewed By: mmmulani

Differential Revision: D4672170

fbshipit-source-id: f9d8c84799dcbdb6b9230ddef6284d84df268833
2017-03-08 19:00:14 -08:00
Adam Comella 22b3faf1ad iOS: Expose fontScale to JavaScript
Summary:
A related Android PR is #11008.

Font scale was exposed through:
  - The `getContentSizeMultiplier` method
  - The `didUpdateContentSizeMultiplier` event

These are now deprecated. The reason is that there was already an API that exposed font scale. However, it was Android only. We now expose font scale through that API on iOS as well. Specifically:
  - Font scale is now available as `PixelRatio.getFontScale()`.
  - The `change` event on the `Dimensions` object now fires when font scale changes.

This change also adds support for `Dimensions.get('screen')` on iOS. Previously, only `Dimensions.get('window')` was available on iOS. The motivation is that, [according to this comment](https://github.com/facebook/react-native/pull/11008#issuecomment-275123609), we'd like to deprecate `window` dimensions in favor of `screen` dimensions in the future.

**Test plan (required)**

Verified that `PixelRatio.getFontScale()` and the `change` event work properly in a test app.

Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/12268

Differential Revision: D4673642

Pulled By: mkonicek

fbshipit-source-id: 2602204da6998a96216e06f5321f28f6603e4972
2017-03-08 05:59:41 -08:00
Martin Konicek 48f30eca7e Move iOS Maps out of the GitHub repo to internal fb codebase
Summary:
MapView has been deprecated in open source for a while: http://facebook.github.io/react-native/docs/mapview.html
We still want to use it internally. Moving it away from the GitHub folder.

Reviewed By: mmmulani

Differential Revision: D4646199

fbshipit-source-id: f469971e448dbca12afe141b43fa8a2518c7d467
2017-03-08 05:01:36 -08:00
Marc Horowitz cb3a439d17 Upgrade double-conversion to 1.1.5
Reviewed By: ericvicenti

Differential Revision: D4662924

fbshipit-source-id: ecf4a3d8aee8a3def1d8308456ca2551b4669f63
2017-03-07 12:08:40 -08:00
Mehdi Mulani 0a06250d24 Add build-time check that module methods are exported correctly
Summary:
This prevents someone from only putting `RCT_EXPORT_METHOD(...)` around some of the arguments to a method and generally causing confusion. Yes, before this diff it would still compile correctly if you did something like:

```
RCT_EXPORT_METHOD(lol:(NSNumber *)lol)
blah:(id)blah
{
  NSLog(@"%@ %@", lol, blah);
}
```

Reviewed By: fkgozali

Differential Revision: D4660019

fbshipit-source-id: 1829a47e5c8d5e8ce93edca2ac7efd7e2bfdf840
2017-03-07 10:45:36 -08:00
Marc Horowitz d1411f11d3 Drop calls to [RCTCxxBridge enqueueCallback:args:] on an invalid instance
Reviewed By: mmmulani

Differential Revision: D4655339

fbshipit-source-id: a6cb026325a030fa15a25638ebfb17ac9ea53767
2017-03-06 12:03:30 -08:00
Janic Duplessis 7d06c35d1c Run install third party script as part of the xcode build
Summary:
Runs the `./ios-install-third-party.sh` script as part of the build process to avoid having to do it manually when building the cxx bridge with xcode. Also added the third-party dir to gitignore.

**Test plan**
Tested that just building works when the third-party dir is missing.
Closes https://github.com/facebook/react-native/pull/12694

Differential Revision: D4658165

Pulled By: ericvicenti

fbshipit-source-id: 9b51b88eb26637b19266bf85deafa41e3a77a645
2017-03-06 00:00:55 -08:00
Janic Duplessis 5353d39172 Remove unused native iOS sticky headers implementation
Summary:
Remove the native iOS sticky headers implementation that has been replaced by the js Animated one. Also remove a line in JS that made sure we passed null to native so it did not use the native implementation.

**Test plan**
Made sure there were no more mentions of sticky / header in native ScrollView related code.
Tested that sticky headers still work :o
Closes https://github.com/facebook/react-native/pull/12696

Differential Revision: D4657391

Pulled By: ericvicenti

fbshipit-source-id: 16324a45ca4ce5cd143293c61394a0fa7ad0c4a1
2017-03-05 14:21:40 -08:00
Kevin Gozali c04e79e85a iOS: fixed RCTDevSettings executor-override handling
Summary: RCTDevSettings incorrectly assigned "bad" executor-override class to the executor instead of checking if the class exists before assigning it. It should really check if the class exists, and fallback to defaults otherwise.

Reviewed By: mmmulani, yungsters

Differential Revision: D4655926

fbshipit-source-id: 48c8fe28f22aaa8430752411ce5e6e858dbd4b32
2017-03-04 16:47:11 -08:00
Marc Horowitz 218e37dbab Fix missing/renamed files so OSS builds again
Reviewed By: ericvicenti

Differential Revision: D4652383

fbshipit-source-id: 04f816c333aba81d936135d7e5fc29a8f9de3af7
2017-03-03 14:17:14 -08:00
Emil Sjolander 4d69f4b2d1 Add display:none support to react native
Summary:
This diff adds display:none support to React Native. This enables hiding components which still calling their render method and keeping them within the state of your application. This enables preserving state in a component even though the component is not visible. Previously this was often implemented by rendering a component off screen as a work around. See below playground for usage.

```
class Playground extends React.Component {
  render() {
    return (
      <View style={{width: '100%', height: '100%', flexDirection: 'row', backgroundColor: 'white'}}>
        <View style={{width: 100, height: 100, display: 'none', backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, backgroundColor: 'blue'}}/>
      </View>
    );
  }
}
```

Reviewed By: astreet

Differential Revision: D4611771

fbshipit-source-id: 0dbe0494d989df42994ab9ad5125d47f3233cc5a
2017-03-01 09:16:05 -08:00
Emil Sjolander 31f848a5fa Expose alignContent to react native
Summary:
This diff adds alignContent (https://developer.mozilla.org/en-US/docs/Web/CSS/align-content) support to React Native. This enables aligning the lines of multi-line content. See below playground for example usage.

```
class Playground extends React.Component {
  render() {
    return (
      <View style={{width: '100%', height: '100%', flexDirection: 'row', backgroundColor: 'white', flexWrap: 'wrap', alignContent: 'space-between'}}>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 10, marginTop: 10, backgroundColor: 'red'}}/>
      </View>
    );
  }
}
```

Reviewed By: astreet

Differential Revision: D4611803

fbshipit-source-id: ae7f6b4b7e9f4bc78d2502da948214294aad4dd2
2017-03-01 09:16:05 -08:00
Emil Sjolander cc275557be Add margin auto support to react native
Summary:
This diff adds margin:auto (https://drafts.csswg.org/css-flexbox-1/#auto-margins) support to React Native. This enables layout not previously supported without inserting empty 'spacer' views. See below Playground for usage.

```
class Playground extends React.Component {
  render() {
    return (
      <View style={{width: '100%', height: '100%', flexDirection: 'row', backgroundColor: 'white'}}>
        <View style={{width: 100, height: 100, backgroundColor: 'red'}}/>
        <View style={{width: 100, height: 100, marginLeft: 'auto', backgroundColor: 'blue'}}/>
      </View>
    );
  }
}
```

Reviewed By: astreet

Differential Revision: D4611753

fbshipit-source-id: e78335565c193f7fb263129a638b444715ba5ab0
2017-03-01 09:16:05 -08:00
Emil Sjolander 23f2f5f239 default root node to size of parent contraints
Reviewed By: dshahidehpour

Differential Revision: D4634616

fbshipit-source-id: 089eb4313c5bb810a6ff56f158cd19cec71808ec
2017-03-01 07:15:23 -08:00
Marc Horowitz 611661e5fe TODO is done
Reviewed By: AaaChiuuu

Differential Revision: D4614454

fbshipit-source-id: 48d66b26371834e35c43731a22abc015fc234650
2017-02-28 14:15:57 -08:00
Emil Sjolander 702564fb60 Pass the parent size to YGNodeCalculateLayout instead of the node size
Reviewed By: astreet

Differential Revision: D4611417

fbshipit-source-id: 2fb0eedffa17f0ec89b601722a1717a72e216b9e
2017-02-28 08:14:51 -08:00
Valentin Shergin b00c1fa3b6 `accessibilityViewIsModal` property was exposed for any view (iOS only)
Reviewed By: mmmulani

Differential Revision: D4582786

fbshipit-source-id: 0902b8cc762042e772798ea7eaa350bc9d737cfb
2017-02-27 23:46:14 -08:00
Eloy Durán 19caaba1d5 Fixes current CI failures and allows tree shaking of native dev support code.
Summary:
* The dev support code moved into a `DevSupport` subspec, meaning that only if the subspec is specified in the user’s Podfile will the packager client, dev menu, etc be included. This is mainly done through checks for header availability.

  It also improves the weird situation where you had to specify the `RCTWebSocket` subspec if you wanted to be able to use the packager client during development.

* I removed hardcoding the release version in the podspec on release, because the podspec still relies on `package.json` when evaluating, so there’s no real point in not also getting the version number from there. This should remove any requirement to perform maintenance of the OSS release script regarding the podspec.
Closes https://github.com/facebook/react-native/pull/12602

Differential Revision: D4621021

Pulled By: ericvicenti

fbshipit-source-id: 6c208371fc40ea607809a6ab05dd3714ed9980cf
2017-02-27 14:04:58 -08:00
Valentin Shergin e7cc1bcbba RCTRootView's `intrinsicSize` property was deprecated in favour of `intrinsicContentSize`
Summary:
Nothing actually changed except the deprecation.
Existed `intrinsicSize` was already implemented as `intrinsicContentSize` and this change only removes redundancy.
Moreover, we do not need `rootViewDidChangeIntrinsicSize` delegate method anymore; this is now mentioned in its description.

Depends on D4577890

Reviewed By: mmmulani

Differential Revision: D4589344

fbshipit-source-id: 16ed62cbf6bf72678bd7f7c11d4812c5aa36c743
2017-02-27 14:04:58 -08:00
Valentin Shergin 9dccff0eda Better support of UIKit layout stuff for RCTRootView an co.
Summary:
Now RCTRootView is much more reliable citizen of UIKit, it got:
 * Implemented `sizeThatFits:`;
 * Implemented `instrinsicContentSize`;
 * Notifying superview via `setNeedsLayout` about changed size.

All it make possible painless integration of ReactNative-powered widgets inside existing native apps.

Reviewed By: javache

Differential Revision: D4577890

fbshipit-source-id: 9897cb002c9d658a97fd436240c2ac947ba2084b
2017-02-27 14:04:58 -08:00
dlowder-salesforce 7f6f964e18 Add missing websocket headers to React-tvOS target
Summary:
Fix Apple TV breakage.  This should allow scripts/objc-test-tvos.sh to run normally.
Closes https://github.com/facebook/react-native/pull/12565

Differential Revision: D4612182

Pulled By: hramos

fbshipit-source-id: 77fd3eeabc6757b23e4f5efbd46e9948b61b1ab6
2017-02-24 09:45:38 -08:00
Lukas Piatkowski 0707361b00 Add a RCTPackagerClientMethod handler for pokeSamplingProfiler in DevMenu
Reviewed By: javache

Differential Revision: D4579600

fbshipit-source-id: dfdf2b6ca0690988015873add58c43faa96ab0a6
2017-02-24 08:30:50 -08:00
Ben Roth 6a14f0b449 Add RCTDevSettings module
Summary:
This decouples non-UI logic from RCTDevMenu into a new module RCTDevSettings.

**Motivation**: This allows developers to change dev settings without depending on the built-in dev menu, e.g. if they want to introduce their own UI, or have other devtools logic that doesn't depend on an action sheet.

It also introduces the RCTDevSettingsDataSource protocol for storing dev tools preferences. This could allow a developer to implement alternative behaviors, e.g. loading the settings from some other config, changing settings based on the user, deciding not to persist some settings, or something else.

The included data source implementation, RCTDevSettingsUserDefaultsDataSource, uses NSUserDefaults and is backwards compatible with the older implementation, so **no workflows or dependent code will break, and old saved settings will persist.**

The RCTDevMenu interface has not changed and is therefore also backwards-compatible, though
some methods are now deprecated.

In order to ensure that RCTDevSettings
Closes https://github.com/facebook/react-native/pull/11613

Reviewed By: mmmulani

Differential Revision: D4571773

Pulled By: javache

fbshipit-source-id: 25555d0a6eaa81f694343e079ed02439e5845fbc
2017-02-24 07:00:16 -08:00
Lukas Piatkowski ccc525c5ca Refactor iOS packager webSocket handling to resemble Android's packagerconnection
Reviewed By: javache

Differential Revision: D4572607

fbshipit-source-id: b588d6216f7b84aef5a63454d2d8978783412c7b
2017-02-23 10:03:54 -08:00
Pieter De Baets dba133a291 Merge AndroidConstants and IOSConstants into PlatformConstants
Reviewed By: AaaChiuuu

Differential Revision: D4597790

fbshipit-source-id: 0a54598d6e9cadb75efff4ac17c13899d6785f9b
2017-02-22 15:01:11 -08:00
Benoit VALLON ca2741609a Fix badgeColor for previous iOS 10 versions
Summary:
The actual badgeColor prop causes the following error when run on device with a version inferior to iOS 10 like iPad 2 and iPad mini 1.

`*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UITabBarItem setBadgeColor:]: unrecognized selector sent to instance 0x7968be80'`

This PR fixes it by checking at runtime if the selector is available for the current running version.

It also makes the color available at start by using the variable `self.barItem`. Currently, the color appears only after a reload.
Closes https://github.com/facebook/react-native/pull/12354

Differential Revision: D4598036

Pulled By: shergin

fbshipit-source-id: 9f104fc27db51213a54273e33c5a22f1b350c55e
2017-02-22 12:04:10 -08:00
Adam Comella 6fbc2c9972 iOS: Remove leading space from accessibilityLabel
Summary:
In some cases, the accessibilityLabel contains a leading space. This is because `RCTRecursiveAccessibilityLabel` adds a space before every iteration of the loop including the first.

After this change, the contract is that:
  - `RCTRecursiveAccessibilityLabel` always returns a string with a leading space.
  - `accessibilityLabel` never returns a string with a leading space.

**Test plan**

I created a test app with the following code:

```
<View style={{height: 100, width: 100, backgroundColor: 'steelblue'}} accessible={true}>
  <View style={{height: 20, width: 20, backgroundColor: 'red'}} accessibilityLabel='One' />
  <View style={{height: 20, width: 20, backgroundColor: 'yellow'}} accessibilityLabel='Two' />
  <View style={{height: 20, width: 20, backgroundColor: 'green'}} accessibilityLabel='Three' />
</View>
```

Before this change, the accessibilityLabel of the outermost View was " One Two Three" (notice the leading space).

After this change, it is "One Two Three" as desired.

Adam
Closes https://github.com/facebook/react-native/pull/12269

Reviewed By: javache

Differential Revision: D4596761

Pulled By: shergin

fbshipit-source-id: 7d5ff704e858d9f277d1547339a2831ffa90f592
2017-02-22 11:16:13 -08:00
Valentin Shergin e361ce8673 `RCTShadowViews`'s `cssNode` property was renamed to `yogaNode`
Reviewed By: javache

Differential Revision: D4590104

fbshipit-source-id: 7767aaa62bcbdce2746c3a26543052dd46be63e0
2017-02-21 08:45:05 -08:00
Pieter De Baets bdd27f4696 Break apart -[RCTComponentData propBlockForKey:inDictionary:]
Reviewed By: shergin

Differential Revision: D4578549

fbshipit-source-id: 726773fdf8c97cdcc3b0540b32278e36c00b19b5
2017-02-20 05:15:25 -08:00
Pieter De Baets ebe3355de7 Create NSDataBigString
Reviewed By: bnham

Differential Revision: D4559734

fbshipit-source-id: 6766093524ae79ed2a41285d33eb2207993a7d0e
2017-02-20 05:00:58 -08:00
Ashok Menon 1635c02e92 Simplifying Struct definition.
Summary:
Since we are reading from a file, we should make sure this struct is packed, just in case we change it down the line and the compiler decides it might want to introduce padding, we're now protected against that.

There was also a discussion about the fact that people might use `ptr += sizeof(BundleHeader)` as an idiom in their code, which would currently be incorrect, if padding was introduced at the end of the file. Actually, it remains incorrect to do that now, because a RAM bundle header is a different size to a BC Bundle header. If people are properly testing their code, they should spot this pretty quickly, because it will always be an incorrect thing to do with a RAM bundle, so this isn't as bad as previously thought: where the code only succeeds when the compiler deigns to not pad the struct at the end.

This diff also cleans up how headers are initialised. `BundleHeader` has a constructor that explicitly zero-initialises it so we can rely on the default initializer to do the right thing now.

Reviewed By: mhorowitz

Differential Revision: D4572032

fbshipit-source-id: 7dc50cfa9438dfdfb9f842dc39d8f15334813c63
2017-02-20 04:30:19 -08:00