yoga/gentest/gentest-cpp.js

/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

/* global Emitter:readable */

function toValueCpp(value) {
  const n = value.toString().replace('px', '').replace('%', '');
  return n + (Number(n) == n && n % 1 !== 0 ? 'f' : '');
}

function toFunctionName(value) {
  if (value.indexOf('%') >= 0) {
    return 'Percent';
  } else if (value.indexOf('Auto') >= 0) {
    return 'Auto';
  }
  return '';
}

const CPPEmitter = function () {
  Emitter.call(this, 'cpp', '  ');
};

CPPEmitter.prototype = Object.create(Emitter.prototype, {
  constructor: {value: CPPEmitter},

  emitPrologue: {
    value: function () {
      this.push(['#include <gtest/gtest.h>', '#include <yoga/Yoga.h>', '']);
    },
  },

  emitTestPrologue: {
    value: function (name, experiments, disabled) {
      this.push('TEST(YogaTest, ' + name + ') {');
      this.pushIndent();

      if (disabled) {
        this.push('GTEST_SKIP();');
        this.push('');
      }

      this.push('const YGConfigRef config = YGConfigNew();');
      for (const i in experiments) {
        this.push(
          'YGConfigSetExperimentalFeatureEnabled(config, YGExperimentalFeature' +
            experiments[i] +
            ', true);',
        );
      }
      this.push('');
    },
  },

  emitTestTreePrologue: {
    value: function (nodeName) {
      this.push(
        'const YGNodeRef ' + nodeName + ' = YGNodeNewWithConfig(config);',
      );
    },
  },

  emitTestEpilogue: {
    value: function (_experiments) {
      this.push(['', 'YGNodeFreeRecursive(root);']);

      this.push('');
      this.push('YGConfigFree(config);');

      this.popIndent();
      this.push(['}', '']);
    },
  },

  emitEpilogue: {value: function () {}},

  AssertEQ: {
    value: function (v0, v1) {
      this.push('ASSERT_FLOAT_EQ(' + toValueCpp(v0) + ', ' + v1 + ');');
    },
  },

  YGAlignAuto: {value: 'YGAlignAuto'},
  YGAlignCenter: {value: 'YGAlignCenter'},
  YGAlignFlexEnd: {value: 'YGAlignFlexEnd'},
  YGAlignFlexStart: {value: 'YGAlignFlexStart'},
  YGAlignStretch: {value: 'YGAlignStretch'},
  YGAlignSpaceBetween: {value: 'YGAlignSpaceBetween'},
  YGAlignSpaceAround: {value: 'YGAlignSpaceAround'},
  YGAlignBaseline: {value: 'YGAlignBaseline'},

  YGDirectionInherit: {value: 'YGDirectionInherit'},
  YGDirectionLTR: {value: 'YGDirectionLTR'},
  YGDirectionRTL: {value: 'YGDirectionRTL'},

  YGEdgeBottom: {value: 'YGEdgeBottom'},
  YGEdgeEnd: {value: 'YGEdgeEnd'},
  YGEdgeLeft: {value: 'YGEdgeLeft'},
  YGEdgeRight: {value: 'YGEdgeRight'},
  YGEdgeStart: {value: 'YGEdgeStart'},
  YGEdgeTop: {value: 'YGEdgeTop'},

  YGGutterAll: {value: 'YGGutterAll'},
  YGGutterColumn: {value: 'YGGutterColumn'},
  YGGutterRow: {value: 'YGGutterRow'},

  YGFlexDirectionColumn: {value: 'YGFlexDirectionColumn'},
  YGFlexDirectionColumnReverse: {value: 'YGFlexDirectionColumnReverse'},
  YGFlexDirectionRow: {value: 'YGFlexDirectionRow'},
  YGFlexDirectionRowReverse: {value: 'YGFlexDirectionRowReverse'},

  YGJustifyCenter: {value: 'YGJustifyCenter'},
  YGJustifyFlexEnd: {value: 'YGJustifyFlexEnd'},
  YGJustifyFlexStart: {value: 'YGJustifyFlexStart'},
  YGJustifySpaceAround: {value: 'YGJustifySpaceAround'},
  YGJustifySpaceBetween: {value: 'YGJustifySpaceBetween'},
  YGJustifySpaceEvenly: {value: 'YGJustifySpaceEvenly'},

  YGOverflowHidden: {value: 'YGOverflowHidden'},
  YGOverflowVisible: {value: 'YGOverflowVisible'},

  YGPositionTypeAbsolute: {value: 'YGPositionTypeAbsolute'},
  YGPositionTypeRelative: {value: 'YGPositionTypeRelative'},

  YGWrapNoWrap: {value: 'YGWrapNoWrap'},
  YGWrapWrap: {value: 'YGWrapWrap'},
  YGWrapWrapReverse: {value: 'YGWrapWrapReverse'},

  YGUndefined: {value: 'YGUndefined'},

  YGDisplayFlex: {value: 'YGDisplayFlex'},
  YGDisplayNone: {value: 'YGDisplayNone'},
  YGAuto: {value: 'YGAuto'},

  YGNodeCalculateLayout: {
    value: function (node, dir, _experiments) {
      this.push(
        'YGNodeCalculateLayout(' +
          node +
          ', YGUndefined, YGUndefined, ' +
          dir +
          ');',
      );
    },
  },

  YGNodeInsertChild: {
    value: function (parentName, nodeName, index) {
      this.push(
        'YGNodeInsertChild(' +
          parentName +
          ', ' +
          nodeName +
          ', ' +
          index +
          ');',
      );
    },
  },

  YGNodeLayoutGetLeft: {
    value: function (nodeName) {
      return 'YGNodeLayoutGetLeft(' + nodeName + ')';
    },
  },

  YGNodeLayoutGetTop: {
    value: function (nodeName) {
      return 'YGNodeLayoutGetTop(' + nodeName + ')';
    },
  },

  YGNodeLayoutGetWidth: {
    value: function (nodeName) {
      return 'YGNodeLayoutGetWidth(' + nodeName + ')';
    },
  },

  YGNodeLayoutGetHeight: {
    value: function (nodeName) {
      return 'YGNodeLayoutGetHeight(' + nodeName + ')';
    },
  },

  YGNodeStyleSetAlignContent: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetAlignContent(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetAlignItems: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetAlignItems(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetAlignSelf: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetAlignSelf(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetBorder: {
    value: function (nodeName, edge, value) {
      this.push(
        'YGNodeStyleSetBorder(' +
          nodeName +
          ', ' +
          edge +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetDirection: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetDirection(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetDisplay: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetDisplay(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetFlexBasis: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetFlexBasis' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetFlexDirection: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetFlexDirection(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetFlexGrow: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetFlexGrow(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetFlexShrink: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetFlexShrink(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetFlexWrap: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetFlexWrap(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetHeight: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetHeight' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetJustifyContent: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetJustifyContent(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetMargin: {
    value: function (nodeName, edge, value) {
      let valueStr = toValueCpp(value);
      if (valueStr != 'YGAuto') {
        valueStr = ', ' + valueStr;
      } else {
        valueStr = '';
      }
      this.push(
        'YGNodeStyleSetMargin' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          edge +
          valueStr +
          ');',
      );
    },
  },

  YGNodeStyleSetMaxHeight: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetMaxHeight' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetMaxWidth: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetMaxWidth' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetMinHeight: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetMinHeight' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetMinWidth: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetMinWidth' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetOverflow: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetOverflow(' + nodeName + ', ' + toValueCpp(value) + ');',
      );
    },
  },

  YGNodeStyleSetPadding: {
    value: function (nodeName, edge, value) {
      this.push(
        'YGNodeStyleSetPadding' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          edge +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetPosition: {
    value: function (nodeName, edge, value) {
      this.push(
        'YGNodeStyleSetPosition' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          edge +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetPositionType: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetPositionType(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetWidth: {
    value: function (nodeName, value) {
      this.push(
        'YGNodeStyleSetWidth' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },

  YGNodeStyleSetGap: {
    value: function (nodeName, gap, value) {
      this.push(
        'YGNodeStyleSetGap' +
          toFunctionName(value) +
          '(' +
          nodeName +
          ', ' +
          gap +
          ', ' +
          toValueCpp(value) +
          ');',
      );
    },
  },
});