add hw2

node_modules/tailwindcss/lib/util/normalizeScreens.js

@@ -0,0 +1,178 @@
+/**
+ * @typedef {object} ScreenValue
+ * @property {number|undefined} min
+ * @property {number|undefined} max
+ * @property {string|undefined} raw
+ */ /**
+ * @typedef {object} Screen
+ * @property {string} name
+ * @property {boolean} not
+ * @property {ScreenValue[]} values
+ */ /**
+ * A function that normalizes the various forms that the screens object can be
+ * provided in.
+ *
+ * Input(s):
+ *   - ['100px', '200px'] // Raw strings
+ *   - { sm: '100px', md: '200px' } // Object with string values
+ *   - { sm: { min: '100px' }, md: { max: '100px' } } // Object with object values
+ *   - { sm: [{ min: '100px' }, { max: '200px' }] } // Object with object array (multiple values)
+ *
+ * Output(s):
+ *   - [{ name: 'sm', values: [{ min: '100px', max: '200px' }] }] // List of objects, that contains multiple values
+ *
+ * @returns {Screen[]}
+ */ "use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+function _export(target, all) {
+    for(var name in all)Object.defineProperty(target, name, {
+        enumerable: true,
+        get: all[name]
+    });
+}
+_export(exports, {
+    normalizeScreens: function() {
+        return normalizeScreens;
+    },
+    isScreenSortable: function() {
+        return isScreenSortable;
+    },
+    compareScreens: function() {
+        return compareScreens;
+    },
+    toScreen: function() {
+        return toScreen;
+    }
+});
+function normalizeScreens(screens, root = true) {
+    if (Array.isArray(screens)) {
+        return screens.map((screen)=>{
+            if (root && Array.isArray(screen)) {
+                throw new Error("The tuple syntax is not supported for `screens`.");
+            }
+            if (typeof screen === "string") {
+                return {
+                    name: screen.toString(),
+                    not: false,
+                    values: [
+                        {
+                            min: screen,
+                            max: undefined
+                        }
+                    ]
+                };
+            }
+            let [name, options] = screen;
+            name = name.toString();
+            if (typeof options === "string") {
+                return {
+                    name,
+                    not: false,
+                    values: [
+                        {
+                            min: options,
+                            max: undefined
+                        }
+                    ]
+                };
+            }
+            if (Array.isArray(options)) {
+                return {
+                    name,
+                    not: false,
+                    values: options.map((option)=>resolveValue(option))
+                };
+            }
+            return {
+                name,
+                not: false,
+                values: [
+                    resolveValue(options)
+                ]
+            };
+        });
+    }
+    return normalizeScreens(Object.entries(screens !== null && screens !== void 0 ? screens : {}), false);
+}
+function isScreenSortable(screen) {
+    if (screen.values.length !== 1) {
+        return {
+            result: false,
+            reason: "multiple-values"
+        };
+    } else if (screen.values[0].raw !== undefined) {
+        return {
+            result: false,
+            reason: "raw-values"
+        };
+    } else if (screen.values[0].min !== undefined && screen.values[0].max !== undefined) {
+        return {
+            result: false,
+            reason: "min-and-max"
+        };
+    }
+    return {
+        result: true,
+        reason: null
+    };
+}
+function compareScreens(type, a, z) {
+    let aScreen = toScreen(a, type);
+    let zScreen = toScreen(z, type);
+    let aSorting = isScreenSortable(aScreen);
+    let bSorting = isScreenSortable(zScreen);
+    // These cases should never happen and indicate a bug in Tailwind CSS itself
+    if (aSorting.reason === "multiple-values" || bSorting.reason === "multiple-values") {
+        throw new Error("Attempted to sort a screen with multiple values. This should never happen. Please open a bug report.");
+    } else if (aSorting.reason === "raw-values" || bSorting.reason === "raw-values") {
+        throw new Error("Attempted to sort a screen with raw values. This should never happen. Please open a bug report.");
+    } else if (aSorting.reason === "min-and-max" || bSorting.reason === "min-and-max") {
+        throw new Error("Attempted to sort a screen with both min and max values. This should never happen. Please open a bug report.");
+    }
+    // Let the sorting begin
+    let { min: aMin , max: aMax  } = aScreen.values[0];
+    let { min: zMin , max: zMax  } = zScreen.values[0];
+    // Negating screens flip their behavior. Basically `not min-width` is `max-width`
+    if (a.not) [aMin, aMax] = [
+        aMax,
+        aMin
+    ];
+    if (z.not) [zMin, zMax] = [
+        zMax,
+        zMin
+    ];
+    aMin = aMin === undefined ? aMin : parseFloat(aMin);
+    aMax = aMax === undefined ? aMax : parseFloat(aMax);
+    zMin = zMin === undefined ? zMin : parseFloat(zMin);
+    zMax = zMax === undefined ? zMax : parseFloat(zMax);
+    let [aValue, zValue] = type === "min" ? [
+        aMin,
+        zMin
+    ] : [
+        zMax,
+        aMax
+    ];
+    return aValue - zValue;
+}
+function toScreen(value, type) {
+    if (typeof value === "object") {
+        return value;
+    }
+    return {
+        name: "arbitrary-screen",
+        values: [
+            {
+                [type]: value
+            }
+        ]
+    };
+}
+function resolveValue({ "min-width": _minWidth , min =_minWidth , max , raw  } = {}) {
+    return {
+        min,
+        max,
+        raw
+    };
+}