C++ Style enums 12/N: PositionType (#1399)

Summary:
X-link: https://github.com/facebook/react-native/pull/39538

Pull Request resolved: https://github.com/facebook/yoga/pull/1399

Moves internal usages of YGPositionType to PositionType

bypass-github-export-checks

Changelog: [Internal]

Reviewed By: rshest

Differential Revision: D49361677

fbshipit-source-id: 526222d6cf9f3dc26eddfbfb8a04de4ba28e14a9

tests/YGStyleAccessorsTest.cpp

@@ -131,10 +131,9 @@ ACCESSOR_TEST(
 
 ACCESSOR_TEST(
     positionType,
-    YGPositionTypeStatic,
-    YGPositionTypeAbsolute,
-    YGPositionTypeRelative,
-    YGPositionTypeStatic)
+    PositionType::Static,
+    PositionType::Absolute,
+    PositionType::Relative)
 
 ACCESSOR_TEST(
     flexWrap,

yoga/Yoga.cpp

@@ -485,10 +485,10 @@ void YGNodeStyleSetPositionType(
     const YGNodeRef node,
     const YGPositionType positionType) {
   updateStyle<MSVC_HINT(positionType)>(
-      node, &Style::positionType, positionType);
+      node, &Style::positionType, scopedEnum(positionType));
 }
 YGPositionType YGNodeStyleGetPositionType(const YGNodeConstRef node) {
-  return resolveRef(node)->getStyle().positionType();
+  return unscopedEnum(resolveRef(node)->getStyle().positionType());
 }
 
 void YGNodeStyleSetFlexWrap(const YGNodeRef node, const YGWrap flexWrap) {

yoga/algorithm/Baseline.cpp

@@ -38,7 +38,7 @@ float calculateBaseline(const yoga::Node* node) {
     if (child->getLineIndex() > 0) {
       break;
     }
-    if (child->getStyle().positionType() == YGPositionTypeAbsolute) {
+    if (child->getStyle().positionType() == PositionType::Absolute) {
       continue;
     }
     if (resolveChildAlignment(node, child) == Align::Baseline ||
@@ -70,7 +70,7 @@ bool isBaselineLayout(const yoga::Node* node) {
   const auto childCount = node->getChildCount();
   for (size_t i = 0; i < childCount; i++) {
     auto child = node->getChild(i);
-    if (child->getStyle().positionType() != YGPositionTypeAbsolute &&
+    if (child->getStyle().positionType() != PositionType::Absolute &&
         child->getStyle().alignSelf() == Align::Baseline) {
       return true;
     }

yoga/algorithm/CalculateLayout.cpp

@@ -821,7 +821,7 @@ static float computeFlexBasisForChildren(
           childDirection, mainDim, crossDim, availableInnerWidth);
     }
 
-    if (child->getStyle().positionType() == YGPositionTypeAbsolute) {
+    if (child->getStyle().positionType() == PositionType::Absolute) {
       continue;
     }
     if (child == singleFlexChild) {
@@ -1248,7 +1248,7 @@ static void justifyMainAxis(
   int numberOfAutoMarginsOnCurrentLine = 0;
   for (size_t i = startOfLineIndex; i < flexLine.endOfLineIndex; i++) {
     auto child = node->getChild(i);
-    if (child->getStyle().positionType() != YGPositionTypeAbsolute) {
+    if (child->getStyle().positionType() != PositionType::Absolute) {
       if (child->marginLeadingValue(mainAxis).unit == YGUnitAuto) {
         numberOfAutoMarginsOnCurrentLine++;
       }
@@ -1310,7 +1310,7 @@ static void justifyMainAxis(
     if (childStyle.display() == YGDisplayNone) {
       continue;
     }
-    if (childStyle.positionType() == YGPositionTypeAbsolute &&
+    if (childStyle.positionType() == PositionType::Absolute &&
         child->isLeadingPositionDefined(mainAxis)) {
       if (performLayout) {
         // In case the child is position absolute and has left/top being
@@ -1327,7 +1327,7 @@ static void justifyMainAxis(
       // Now that we placed the element, we need to update the variables.
       // We need to do that only for relative elements. Absolute elements do not
       // take part in that phase.
-      if (childStyle.positionType() != YGPositionTypeAbsolute) {
+      if (childStyle.positionType() != PositionType::Absolute) {
         if (child->marginLeadingValue(mainAxis).unit == YGUnitAuto) {
           flexLine.layout.mainDim += flexLine.layout.remainingFreeSpace /
               static_cast<float>(numberOfAutoMarginsOnCurrentLine);
@@ -1866,7 +1866,7 @@ static void calculateLayoutImpl(
         if (child->getStyle().display() == YGDisplayNone) {
           continue;
         }
-        if (child->getStyle().positionType() == YGPositionTypeAbsolute) {
+        if (child->getStyle().positionType() == PositionType::Absolute) {
           // If the child is absolutely positioned and has a
           // top/left/bottom/right set, override all the previously computed
           // positions to set it correctly.
@@ -2072,7 +2072,7 @@ static void calculateLayoutImpl(
         if (child->getStyle().display() == YGDisplayNone) {
           continue;
         }
-        if (child->getStyle().positionType() != YGPositionTypeAbsolute) {
+        if (child->getStyle().positionType() != PositionType::Absolute) {
           if (child->getLineIndex() != i) {
             break;
           }
@@ -2115,7 +2115,7 @@ static void calculateLayoutImpl(
           if (child->getStyle().display() == YGDisplayNone) {
             continue;
           }
-          if (child->getStyle().positionType() != YGPositionTypeAbsolute) {
+          if (child->getStyle().positionType() != PositionType::Absolute) {
             switch (resolveChildAlignment(node, child)) {
               case Align::FlexStart: {
                 child->setLayoutPosition(
@@ -2305,7 +2305,7 @@ static void calculateLayoutImpl(
   if (performLayout && node->getStyle().flexWrap() == YGWrapWrapReverse) {
     for (size_t i = 0; i < childCount; i++) {
       const auto child = node->getChild(i);
-      if (child->getStyle().positionType() != YGPositionTypeAbsolute) {
+      if (child->getStyle().positionType() != PositionType::Absolute) {
         child->setLayoutPosition(
             node->getLayout().measuredDimensions[dimension(crossAxis)] -
                 child->getLayout().position[leadingEdge(crossAxis)] -
@@ -2319,7 +2319,7 @@ static void calculateLayoutImpl(
     // STEP 10: SIZING AND POSITIONING ABSOLUTE CHILDREN
     for (auto child : node->getChildren()) {
       if (child->getStyle().display() == YGDisplayNone ||
-          child->getStyle().positionType() != YGPositionTypeAbsolute) {
+          child->getStyle().positionType() != PositionType::Absolute) {
         continue;
       }
       const bool absolutePercentageAgainstPaddingEdge =

yoga/algorithm/FlexLine.cpp

@@ -39,7 +39,7 @@ FlexLine calculateFlexLine(
   for (; endOfLineIndex < node->getChildren().size(); endOfLineIndex++) {
     auto child = node->getChild(endOfLineIndex);
     if (child->getStyle().display() == YGDisplayNone ||
-        child->getStyle().positionType() == YGPositionTypeAbsolute) {
+        child->getStyle().positionType() == PositionType::Absolute) {
       continue;
     }
 

yoga/debug/NodeToString.cpp

@@ -209,7 +209,7 @@ void nodeToString(
 
     if (style.positionType() != yoga::Node{}.getStyle().positionType()) {
       appendFormattedString(
-          str, "position: %s; ", YGPositionTypeToString(style.positionType()));
+          str, "position: %s; ", toString(style.positionType()));
     }
 
     appendEdgeIfNotUndefined(str, "left", style.position(), YGEdgeLeft);

yoga/node/Node.cpp

@@ -382,7 +382,7 @@ void Node::setPosition(
   const FlexDirection crossAxis =
       yoga::resolveCrossDirection(mainAxis, directionRespectingRoot);
 
-  // Here we should check for `YGPositionTypeStatic` and in this case zero inset
+  // Here we should check for `PositionType::Static` and in this case zero inset
   // properties (left, right, top, bottom, begin, end).
   // https://www.w3.org/TR/css-position-3/#valdef-position-static
   const FloatOptional relativePositionMain =
@@ -522,7 +522,7 @@ float Node::resolveFlexShrink() const {
 
 bool Node::isNodeFlexible() {
   return (
-      (style_.positionType() != YGPositionTypeAbsolute) &&
+      (style_.positionType() != PositionType::Absolute) &&
       (resolveFlexGrow() != 0 || resolveFlexShrink() != 0));
 }
 

yoga/style/Style.h

@@ -19,6 +19,7 @@
 #include <yoga/enums/Direction.h>
 #include <yoga/enums/FlexDirection.h>
 #include <yoga/enums/Justify.h>
+#include <yoga/enums/PositionType.h>
 #include <yoga/numeric/FloatOptional.h>
 #include <yoga/style/CompactValue.h>
 
@@ -116,7 +117,7 @@ class YG_EXPORT Style {
   static constexpr uint8_t positionTypeOffset =
       alignSelfOffset + minimumBitCount<Align>();
   static constexpr uint8_t flexWrapOffset =
-      positionTypeOffset + minimumBitCount<YGPositionType>();
+      positionTypeOffset + minimumBitCount<PositionType>();
   static constexpr uint8_t overflowOffset =
       flexWrapOffset + minimumBitCount<YGWrap>();
   static constexpr uint8_t displayOffset =
@@ -185,10 +186,10 @@ class YG_EXPORT Style {
     return {*this, alignSelfOffset};
   }
 
-  YGPositionType positionType() const {
-    return getEnumData<YGPositionType>(flags, positionTypeOffset);
+  PositionType positionType() const {
+    return getEnumData<PositionType>(flags, positionTypeOffset);
   }
-  BitfieldRef<YGPositionType> positionType() {
+  BitfieldRef<PositionType> positionType() {
     return {*this, positionTypeOffset};
   }