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Replaced RegExp method parser with recursive descent

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Summary:
public

This diff replaces the RegEx module method parser with a handwritten recursive descent parser that's faster and easier to maintain.

The new parser is ~8 times faster when tested on the UIManager.managerChildren() method, and uses ~1/10 as much RAM.

The new parser also supports lightweight generics, and is more tolerant of white space.

(This means that you now can – and should – use types like `NSArray<NSString *> *` for your exported properties and method arguments, instead of `NSStringArray`).

Reviewed By: jspahrsummers

Differential Revision: D2736636

fb-gh-sync-id: f6a11431935fa8acc8ac36f3471032ec9a1c8490
This commit is contained in:
Nick Lockwood
2015-12-10 10:09:04 -08:00
committed by facebook-github-bot-4
parent ce7c0b735f
commit 88ac40666c
20 changed files with 413 additions and 170 deletions
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36
React/Base/RCTConvert.h
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@@ -94,28 +94,13 @@ typedef NSURL RCTFileURL;
size:(id)size weight:(id)weight style:(id)style
scaleMultiplier:(CGFloat)scaleMultiplier;
typedef NSArray NSArrayArray;
+ (NSArray<NSArray *> *)NSArrayArray:(id)json;
typedef NSArray NSStringArray;
+ (NSArray<NSString *> *)NSStringArray:(id)json;
typedef NSArray NSStringArrayArray;
+ (NSArray<NSArray<NSString *> *> *)NSStringArrayArray:(id)json;
typedef NSArray NSDictionaryArray;
+ (NSArray<NSDictionary *> *)NSDictionaryArray:(id)json;
typedef NSArray NSURLArray;
+ (NSArray<NSURL *> *)NSURLArray:(id)json;
typedef NSArray RCTFileURLArray;
+ (NSArray<NSURL *> *)RCTFileURLArray:(id)json;
typedef NSArray NSNumberArray;
+ (NSArray<RCTFileURL *> *)RCTFileURLArray:(id)json;
+ (NSArray<NSNumber *> *)NSNumberArray:(id)json;
typedef NSArray UIColorArray;
+ (NSArray<UIColor *> *)UIColorArray:(id)json;
typedef NSArray CGColorArray;
@@ -145,6 +130,18 @@ typedef BOOL css_clip_t, css_backface_visibility_t;
@interface RCTConvert (Deprecated)
/**
* Use lightweight generics syntax instead, e.g. NSArray<NSString *>
*/
typedef NSArray NSArrayArray __deprecated_msg("Use NSArray<NSArray *>");
typedef NSArray NSStringArray __deprecated_msg("Use NSArray<NSString *>");
typedef NSArray NSStringArrayArray __deprecated_msg("Use NSArray<NSArray<NSString *> *>");
typedef NSArray NSDictionaryArray __deprecated_msg("Use NSArray<NSDictionary *>");
typedef NSArray NSURLArray __deprecated_msg("Use NSArray<NSURL *>");
typedef NSArray RCTFileURLArray __deprecated_msg("Use NSArray<RCTFileURL *>");
typedef NSArray NSNumberArray __deprecated_msg("Use NSArray<NSNumber *>");
typedef NSArray UIColorArray __deprecated_msg("Use NSArray<UIColor *>");
/**
* Synchronous image loading is generally a bad idea for performance reasons.
* If you need to pass image references, try to use `RCTImageSource` and then
@@ -162,6 +159,11 @@ RCT_EXTERN NSNumber *RCTConvertEnumValue(const char *, NSDictionary *, NSNumber
RCT_EXTERN NSNumber *RCTConvertMultiEnumValue(const char *, NSDictionary *, NSNumber *, id);
RCT_EXTERN NSArray *RCTConvertArrayValue(SEL, id);
/**
* Get the converter function for the specified type
*/
RCT_EXTERN SEL RCTConvertSelectorForType(NSString *type);
/**
* This macro is used for logging conversion errors. This is just used to
* avoid repeating the same boilerplate for every error message.
@@ -238,7 +240,7 @@ RCT_CUSTOM_CONVERTER(type, type, [RCT_DEBUG ? [self NSNumber:json] : json getter
* This macro is used for creating converter functions for typed arrays.
*/
#define RCT_ARRAY_CONVERTER(type) \
+ (NSArray<type *> *)type##Array:(id)json \
+ (NSArray<id> *)type##Array:(id)json \
{ \
return RCTConvertArrayValue(@selector(type:), json); \
}