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 = void 0;
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7 | var _helperPluginUtils = require("@babel/helper-plugin-utils");
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8 | var _helperSkipTransparentExpressionWrappers = require("@babel/helper-skip-transparent-expression-wrappers");
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9 | var _core = require("@babel/core");
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10 | var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
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11 | var _api$assumption, _options$allowArrayLi;
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12 | api.assertVersion(7);
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13 | const iterableIsArray = (_api$assumption = api.assumption("iterableIsArray")) != null ? _api$assumption : options.loose;
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14 | const arrayLikeIsIterable = (_options$allowArrayLi = options.allowArrayLike) != null ? _options$allowArrayLi : api.assumption("arrayLikeIsIterable");
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15 | function getSpreadLiteral(spread, scope) {
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16 | if (iterableIsArray && !_core.types.isIdentifier(spread.argument, {
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17 | name: "arguments"
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18 | })) {
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19 | return spread.argument;
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20 | } else {
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21 | return scope.toArray(spread.argument, true, arrayLikeIsIterable);
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22 | }
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23 | }
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24 | function hasHole(spread) {
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25 | return spread.elements.some(el => el === null);
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26 | }
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27 | function hasSpread(nodes) {
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28 | for (let i = 0; i < nodes.length; i++) {
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29 | if (_core.types.isSpreadElement(nodes[i])) {
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30 | return true;
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31 | }
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32 | }
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33 | return false;
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34 | }
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35 | function push(_props, nodes) {
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36 | if (!_props.length) return _props;
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37 | nodes.push(_core.types.arrayExpression(_props));
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38 | return [];
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39 | }
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40 | function build(props, scope, file) {
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41 | const nodes = [];
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42 | let _props = [];
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43 | for (const prop of props) {
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44 | if (_core.types.isSpreadElement(prop)) {
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45 | _props = push(_props, nodes);
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46 | let spreadLiteral = getSpreadLiteral(prop, scope);
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47 | if (_core.types.isArrayExpression(spreadLiteral) && hasHole(spreadLiteral)) {
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48 | spreadLiteral = _core.types.callExpression(file.addHelper("arrayWithoutHoles"), [spreadLiteral]);
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49 | }
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50 | nodes.push(spreadLiteral);
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51 | } else {
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52 | _props.push(prop);
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53 | }
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54 | }
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55 | push(_props, nodes);
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56 | return nodes;
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57 | }
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58 | return {
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59 | name: "transform-spread",
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60 | visitor: {
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61 | ArrayExpression(path) {
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62 | const {
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63 | node,
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64 | scope
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65 | } = path;
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66 | const elements = node.elements;
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67 | if (!hasSpread(elements)) return;
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68 | const nodes = build(elements, scope, this.file);
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69 | let first = nodes[0];
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70 | if (nodes.length === 1 && first !== elements[0].argument) {
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71 | path.replaceWith(first);
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72 | return;
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73 | }
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74 | if (!_core.types.isArrayExpression(first)) {
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75 | first = _core.types.arrayExpression([]);
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76 | } else {
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77 | nodes.shift();
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78 | }
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79 | path.replaceWith(_core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes));
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80 | },
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81 | CallExpression(path) {
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82 | const {
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83 | node,
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84 | scope
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85 | } = path;
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86 | const args = node.arguments;
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87 | if (!hasSpread(args)) return;
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88 | const calleePath = (0, _helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers)(path.get("callee"));
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89 | if (calleePath.isSuper()) {
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90 | throw path.buildCodeFrameError("It's not possible to compile spread arguments in `super()` without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
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91 | }
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92 | let contextLiteral = scope.buildUndefinedNode();
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93 | node.arguments = [];
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94 | let nodes;
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95 | if (args.length === 1 && _core.types.isIdentifier(args[0].argument, {
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96 | name: "arguments"
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97 | })) {
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98 | nodes = [args[0].argument];
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99 | } else {
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100 | nodes = build(args, scope, this.file);
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101 | }
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102 | const first = nodes.shift();
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103 | if (nodes.length) {
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104 | node.arguments.push(_core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes));
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105 | } else {
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106 | node.arguments.push(first);
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107 | }
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108 | const callee = calleePath.node;
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109 | if (_core.types.isMemberExpression(callee)) {
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110 | const temp = scope.maybeGenerateMemoised(callee.object);
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111 | if (temp) {
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112 | callee.object = _core.types.assignmentExpression("=", temp, callee.object);
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113 | contextLiteral = temp;
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114 | } else {
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115 | contextLiteral = _core.types.cloneNode(callee.object);
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116 | }
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117 | }
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118 | node.callee = _core.types.memberExpression(node.callee, _core.types.identifier("apply"));
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119 | if (_core.types.isSuper(contextLiteral)) {
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120 | contextLiteral = _core.types.thisExpression();
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121 | }
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122 | node.arguments.unshift(_core.types.cloneNode(contextLiteral));
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123 | },
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124 | NewExpression(path) {
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125 | const {
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126 | node,
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127 | scope
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128 | } = path;
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129 | if (!hasSpread(node.arguments)) return;
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130 | const nodes = build(node.arguments, scope, this.file);
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131 | const first = nodes.shift();
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132 | let args;
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133 | if (nodes.length) {
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134 | args = _core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes);
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135 | } else {
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136 | args = first;
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137 | }
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138 | path.replaceWith(_core.types.callExpression(path.hub.addHelper("construct"), [node.callee, args]));
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139 | }
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140 | }
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141 | };
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142 | });
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143 |
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144 |
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