Commit Graph

7 Commits

Author SHA1 Message Date
Valentin Shergin eabf29e320 Fabric: Getting rid of many `auto &&`
Summary:
@public
After reading about move-semantic and rvalue refs I realized that we (I) definitely overuse  `auto &&` (aka universal reference) construction. Even if this is harmless, does not look good and idiomatic.
Whenever I used that from a semantical point of view I always meant  "I need an alias for this" which is actually "read-only reference" which is `const auto &`.
This is also fit good to our policy where "everything is const (immutable) by default".
Hence I change that to how it should be.

Reviewed By: fkgozali

Differential Revision: D8475637

fbshipit-source-id: 0a691ededa0e798db8ffa053bff0f400913ab7b8
2018-06-22 07:32:49 -07:00
Valentin Shergin 310a2850c5 Fabric: Universal `fromDynamic` for `std::vector<...>`
Summary:
Now, if `fromDynamic` is defined for some type, `fromDynamic` for `std::vector` of this type is also will be defined.
We need this for parsing `ImageSources` (a vector of `ImageSource`) type.

Reviewed By: fkgozali

Differential Revision: D8473508

fbshipit-source-id: d8dc8e3a3273f35b76c7132c553130762f768394
2018-06-17 21:46:22 -07:00
Kevin Gozali 119fd1efe7 iOS: Fixed some props conversion errors
Summary:
* numbers in JS are doubles in native land, since there's no notion of int or int64 in JS - so simply convert numbers to int instead of assuming it's int
* the parsing of Yoga props with `'...%'` string value has a bug: it should be copying the number instead of the `%`

Reviewed By: shergin

Differential Revision: D8370873

fbshipit-source-id: 44e9e3f0530c000c963e8e9ca66e8b0a48d80bcd
2018-06-11 20:01:42 -07:00
Valentin Shergin 7f1ed6848f Fabric: `convertRawProp` was extended to accept an optional default value
Summary:
During transforming raw prop (`rawProps[<prop>]`) to typed props (`MyProps.<prop>`) we can face three different cases:
 * `rawProps` collection has proper serialized value for the key. In this case, we have to set a new value of the typed prop converting value using `fromDynamic`.
 * `rawProps` collection does not have value for the key. In this case, we have to copy a value from source prop (`sourceValue`).
 * `rawProps` collection has `null` value for the key. This is the special case which means that the prop was removed from the particular component instance and we have to reset it to some *default* value (which is *not* the same as `sourceValue`). Now the default value of the `defaultValue` (sic!) argument is a default value of the type of the value (which may be different from logical default value).

We didn't handle the last case previously and this caused crashes (and unexpected behavior) because `fromDynamic` often cannot handle `null` value.

And yes, all this mean that we also have to update all `convertRawProp` call sites where logical default values are not equal to type-specific default values. This is a potential error-prone place, especially because now we have to specify logical default values in two places (in a prop declaration and in a parameterized constructor). And seems there is no way to avoid that without performance loss (because both of those places are basically constructors).

My hope is that codegen (where default values are also defined in JavaScript) will help with it eventually.

Reviewed By: fkgozali

Differential Revision: D8247652

fbshipit-source-id: 2cbe65f5f5cccd7a0d34aaa19e385aacebfe8cb1
2018-06-08 20:31:41 -07:00
Kevin Gozali 128c9343c4 iOS: fix up RNTesterPods
Summary:
A few fixes:
* missing include: folly/Optional.h
* switch folly::Optional's `has_value()` to `hasValue()` for now until folly is upgraded to newer version
* fix up import for RCTTextAttributes.h
* fix up includes for "conversions.h" to use namespaced includes

Reviewed By: mmmulani

Differential Revision: D8021149

fbshipit-source-id: d3955986d3ab6b1d9b61ac1e385767893ce57e5e
2018-05-16 14:14:41 -07:00
Valentin Shergin 1f9676a1cb Fabric: Final cleanup of define-based props treatment
Summary: Oh, my! No more `#define`s related to props conversions and debug-printing.

Reviewed By: fkgozali

Differential Revision: D7958250

fbshipit-source-id: 86950070c55f134aa3a575b9fd68fc90d865cf44
2018-05-14 16:03:49 -07:00
Valentin Shergin 120dcec621 Fabric: New props treatment in `core` module
Summary:
Same as previous one.
Adopting template-generated `convertRawProp` and `debugStringConvertibleItem` functions in `core` module.
Note, to do so we have to change signatures of some conversions functions to make them more overloading-friendly.

Reviewed By: fkgozali

Differential Revision: D7958243

fbshipit-source-id: 500ee420d9aa562ee3c5810ef625e06541eda8fb
2018-05-14 16:03:49 -07:00