1 | "use strict";
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.default = _default;
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7 | const order = {
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8 | "*": 0,
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9 | "/": 0,
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10 | "+": 1,
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11 | "-": 1
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12 | };
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13 |
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14 | function round(value, prec) {
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15 | if (prec !== false) {
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16 | const precision = Math.pow(10, prec);
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17 | return Math.round(value * precision) / precision;
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18 | }
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19 |
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20 | return value;
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21 | }
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22 |
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23 | function stringify(node, prec) {
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24 | switch (node.type) {
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25 | case "MathExpression":
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26 | {
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27 | const {
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28 | left,
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29 | right,
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30 | operator: op
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31 | } = node;
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32 | let str = "";
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33 |
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34 | if (left.type === 'MathExpression' && order[op] < order[left.operator]) {
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35 | str += `(${stringify(left, prec)})`;
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36 | } else {
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37 | str += stringify(left, prec);
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38 | }
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39 |
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40 | str += order[op] ? ` ${node.operator} ` : node.operator;
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41 |
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42 | if (right.type === 'MathExpression' && order[op] < order[right.operator]) {
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43 | str += `(${stringify(right, prec)})`;
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44 | } else {
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45 | str += stringify(right, prec);
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46 | }
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47 |
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48 | return str;
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49 | }
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50 |
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51 | case 'Number':
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52 | return round(node.value, prec);
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53 |
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54 | case 'Function':
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55 | return node.value;
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56 |
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57 | default:
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58 | return round(node.value, prec) + node.unit;
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59 | }
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60 | }
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61 |
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62 | function _default(calc, node, originalValue, options, result, item) {
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63 | let str = stringify(node, options.precision);
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64 | const shouldPrintCalc = node.type === "MathExpression" || node.type === "Function";
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65 |
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66 | if (shouldPrintCalc) {
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67 | // if calc expression couldn't be resolved to a single value, re-wrap it as
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68 | // a calc()
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69 | str = `${calc}(${str})`; // if the warnWhenCannotResolve option is on, inform the user that the calc
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70 | // expression could not be resolved to a single value
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71 |
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72 | if (options.warnWhenCannotResolve) {
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73 | result.warn("Could not reduce expression: " + originalValue, {
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74 | plugin: 'postcss-calc',
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75 | node: item
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76 | });
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77 | }
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78 | }
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79 |
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80 | return str;
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81 | }
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82 |
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83 | module.exports = exports.default; |
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