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Fabric: Improved printing of Yoga's Edges data structure

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Summary:
Yoga represents concepts like `margin`, `padding` and `position` as `edges` (aka std::array<YGValue, YGEdgeCount>).
This diff improves conversion of this data structure to string (primarily for debugging purposes).

Reviewed By: fkgozali

Differential Revision: D7958241

fbshipit-source-id: 6931c7b5d2395c28821c8daef62f609b13f112c6
This commit is contained in:
Valentin Shergin 2018-05-14 15:43:59 -07:00 committed by Facebook Github Bot
parent 1f9676a1cb
commit 858f7f8331
1 changed files with 19 additions and 10 deletions
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29
ReactCommon/fabric/view/conversions.h
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@ -337,16 +337,25 @@ inline std::string toString(const std::array<YGValue, YGDimensionCount> &value)
}
inline std::string toString(const std::array<YGValue, YGEdgeCount> &value) {
return "{" +
toString(value[0]) + ", " +
toString(value[1]) + ", " +
toString(value[2]) + ", " +
toString(value[3]) + ", " +
toString(value[4]) + ", " +
toString(value[5]) + ", " +
toString(value[6]) + ", " +
toString(value[7]) + ", " +
toString(value[8]) + "}";
static std::array<std::string, YGEdgeCount> names = {
{"left", "top", "right", "bottom", "start", "end", "horizontal", "vertical", "all"}
};
std::string result;
std::string separator = ", ";
for (int i = 0; i < YGEdgeCount; i++) {
if (value[i].unit == YGUnitUndefined) {
continue;
}
result += names[i] + ": " + toString(value[i]) + separator;
}
if (!result.empty()) {
result.erase(result.length() - separator.length());
}
return "{" + result + "}";
}
} // namespace react