[6a3a178] | 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.NullableTypeAnnotation = NullableTypeAnnotation;
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| 7 | exports.FunctionTypeAnnotation = FunctionTypeAnnotation;
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| 8 | exports.UpdateExpression = UpdateExpression;
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| 9 | exports.ObjectExpression = ObjectExpression;
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| 10 | exports.DoExpression = DoExpression;
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| 11 | exports.Binary = Binary;
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| 12 | exports.IntersectionTypeAnnotation = exports.UnionTypeAnnotation = UnionTypeAnnotation;
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| 13 | exports.OptionalIndexedAccessType = OptionalIndexedAccessType;
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| 14 | exports.TSAsExpression = TSAsExpression;
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| 15 | exports.TSTypeAssertion = TSTypeAssertion;
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| 16 | exports.TSIntersectionType = exports.TSUnionType = TSUnionType;
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| 17 | exports.TSInferType = TSInferType;
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| 18 | exports.BinaryExpression = BinaryExpression;
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| 19 | exports.SequenceExpression = SequenceExpression;
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| 20 | exports.AwaitExpression = exports.YieldExpression = YieldExpression;
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| 21 | exports.ClassExpression = ClassExpression;
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| 22 | exports.UnaryLike = UnaryLike;
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| 23 | exports.FunctionExpression = FunctionExpression;
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| 24 | exports.ArrowFunctionExpression = ArrowFunctionExpression;
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| 25 | exports.ConditionalExpression = ConditionalExpression;
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| 26 | exports.OptionalCallExpression = exports.OptionalMemberExpression = OptionalMemberExpression;
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| 27 | exports.AssignmentExpression = AssignmentExpression;
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| 28 | exports.LogicalExpression = LogicalExpression;
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| 29 | exports.Identifier = Identifier;
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| 30 |
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| 31 | var t = require("@babel/types");
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| 32 |
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| 33 | const PRECEDENCE = {
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| 34 | "||": 0,
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| 35 | "??": 0,
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| 36 | "&&": 1,
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| 37 | "|": 2,
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| 38 | "^": 3,
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| 39 | "&": 4,
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| 40 | "==": 5,
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| 41 | "===": 5,
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| 42 | "!=": 5,
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| 43 | "!==": 5,
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| 44 | "<": 6,
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| 45 | ">": 6,
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| 46 | "<=": 6,
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| 47 | ">=": 6,
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| 48 | in: 6,
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| 49 | instanceof: 6,
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| 50 | ">>": 7,
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| 51 | "<<": 7,
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| 52 | ">>>": 7,
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| 53 | "+": 8,
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| 54 | "-": 8,
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| 55 | "*": 9,
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| 56 | "/": 9,
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| 57 | "%": 9,
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| 58 | "**": 10
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| 59 | };
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| 60 |
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| 61 | const isClassExtendsClause = (node, parent) => (t.isClassDeclaration(parent) || t.isClassExpression(parent)) && parent.superClass === node;
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| 62 |
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| 63 | const hasPostfixPart = (node, parent) => (t.isMemberExpression(parent) || t.isOptionalMemberExpression(parent)) && parent.object === node || (t.isCallExpression(parent) || t.isOptionalCallExpression(parent) || t.isNewExpression(parent)) && parent.callee === node || t.isTaggedTemplateExpression(parent) && parent.tag === node || t.isTSNonNullExpression(parent);
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| 64 |
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| 65 | function NullableTypeAnnotation(node, parent) {
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| 66 | return t.isArrayTypeAnnotation(parent);
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| 67 | }
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| 68 |
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| 69 | function FunctionTypeAnnotation(node, parent, printStack) {
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| 70 | return t.isUnionTypeAnnotation(parent) || t.isIntersectionTypeAnnotation(parent) || t.isArrayTypeAnnotation(parent) || t.isTypeAnnotation(parent) && t.isArrowFunctionExpression(printStack[printStack.length - 3]);
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| 71 | }
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| 72 |
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| 73 | function UpdateExpression(node, parent) {
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| 74 | return hasPostfixPart(node, parent) || isClassExtendsClause(node, parent);
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| 75 | }
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| 76 |
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| 77 | function ObjectExpression(node, parent, printStack) {
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| 78 | return isFirstInContext(printStack, {
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| 79 | expressionStatement: true,
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| 80 | arrowBody: true
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| 81 | });
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| 82 | }
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| 83 |
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| 84 | function DoExpression(node, parent, printStack) {
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| 85 | return !node.async && isFirstInContext(printStack, {
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| 86 | expressionStatement: true
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| 87 | });
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| 88 | }
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| 89 |
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| 90 | function Binary(node, parent) {
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| 91 | if (node.operator === "**" && t.isBinaryExpression(parent, {
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| 92 | operator: "**"
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| 93 | })) {
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| 94 | return parent.left === node;
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| 95 | }
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| 96 |
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| 97 | if (isClassExtendsClause(node, parent)) {
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| 98 | return true;
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| 99 | }
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| 100 |
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| 101 | if (hasPostfixPart(node, parent) || t.isUnaryLike(parent) || t.isAwaitExpression(parent)) {
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| 102 | return true;
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| 103 | }
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| 104 |
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| 105 | if (t.isBinary(parent)) {
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| 106 | const parentOp = parent.operator;
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| 107 | const parentPos = PRECEDENCE[parentOp];
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| 108 | const nodeOp = node.operator;
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| 109 | const nodePos = PRECEDENCE[nodeOp];
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| 110 |
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| 111 | if (parentPos === nodePos && parent.right === node && !t.isLogicalExpression(parent) || parentPos > nodePos) {
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| 112 | return true;
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| 113 | }
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| 114 | }
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| 115 | }
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| 116 |
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| 117 | function UnionTypeAnnotation(node, parent) {
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| 118 | return t.isArrayTypeAnnotation(parent) || t.isNullableTypeAnnotation(parent) || t.isIntersectionTypeAnnotation(parent) || t.isUnionTypeAnnotation(parent);
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| 119 | }
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| 120 |
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| 121 | function OptionalIndexedAccessType(node, parent) {
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| 122 | return t.isIndexedAccessType(parent, {
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| 123 | objectType: node
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| 124 | });
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| 125 | }
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| 126 |
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| 127 | function TSAsExpression() {
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| 128 | return true;
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| 129 | }
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| 130 |
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| 131 | function TSTypeAssertion() {
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| 132 | return true;
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| 133 | }
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| 134 |
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| 135 | function TSUnionType(node, parent) {
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| 136 | return t.isTSArrayType(parent) || t.isTSOptionalType(parent) || t.isTSIntersectionType(parent) || t.isTSUnionType(parent) || t.isTSRestType(parent);
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| 137 | }
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| 138 |
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| 139 | function TSInferType(node, parent) {
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| 140 | return t.isTSArrayType(parent) || t.isTSOptionalType(parent);
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| 141 | }
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| 142 |
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| 143 | function BinaryExpression(node, parent) {
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| 144 | return node.operator === "in" && (t.isVariableDeclarator(parent) || t.isFor(parent));
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| 145 | }
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| 146 |
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| 147 | function SequenceExpression(node, parent) {
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| 148 | if (t.isForStatement(parent) || t.isThrowStatement(parent) || t.isReturnStatement(parent) || t.isIfStatement(parent) && parent.test === node || t.isWhileStatement(parent) && parent.test === node || t.isForInStatement(parent) && parent.right === node || t.isSwitchStatement(parent) && parent.discriminant === node || t.isExpressionStatement(parent) && parent.expression === node) {
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| 149 | return false;
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| 150 | }
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| 151 |
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| 152 | return true;
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| 153 | }
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| 154 |
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| 155 | function YieldExpression(node, parent) {
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| 156 | return t.isBinary(parent) || t.isUnaryLike(parent) || hasPostfixPart(node, parent) || t.isAwaitExpression(parent) && t.isYieldExpression(node) || t.isConditionalExpression(parent) && node === parent.test || isClassExtendsClause(node, parent);
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| 157 | }
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| 158 |
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| 159 | function ClassExpression(node, parent, printStack) {
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| 160 | return isFirstInContext(printStack, {
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| 161 | expressionStatement: true,
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| 162 | exportDefault: true
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| 163 | });
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| 164 | }
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| 165 |
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| 166 | function UnaryLike(node, parent) {
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| 167 | return hasPostfixPart(node, parent) || t.isBinaryExpression(parent, {
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| 168 | operator: "**",
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| 169 | left: node
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| 170 | }) || isClassExtendsClause(node, parent);
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| 171 | }
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| 172 |
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| 173 | function FunctionExpression(node, parent, printStack) {
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| 174 | return isFirstInContext(printStack, {
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| 175 | expressionStatement: true,
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| 176 | exportDefault: true
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| 177 | });
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| 178 | }
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| 179 |
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| 180 | function ArrowFunctionExpression(node, parent) {
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| 181 | return t.isExportDeclaration(parent) || ConditionalExpression(node, parent);
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| 182 | }
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| 183 |
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| 184 | function ConditionalExpression(node, parent) {
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| 185 | if (t.isUnaryLike(parent) || t.isBinary(parent) || t.isConditionalExpression(parent, {
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| 186 | test: node
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| 187 | }) || t.isAwaitExpression(parent) || t.isTSTypeAssertion(parent) || t.isTSAsExpression(parent)) {
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| 188 | return true;
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| 189 | }
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| 190 |
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| 191 | return UnaryLike(node, parent);
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| 192 | }
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| 193 |
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| 194 | function OptionalMemberExpression(node, parent) {
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| 195 | return t.isCallExpression(parent, {
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| 196 | callee: node
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| 197 | }) || t.isMemberExpression(parent, {
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| 198 | object: node
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| 199 | });
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| 200 | }
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| 201 |
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| 202 | function AssignmentExpression(node, parent) {
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| 203 | if (t.isObjectPattern(node.left)) {
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| 204 | return true;
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| 205 | } else {
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| 206 | return ConditionalExpression(node, parent);
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| 207 | }
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| 208 | }
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| 209 |
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| 210 | function LogicalExpression(node, parent) {
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| 211 | switch (node.operator) {
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| 212 | case "||":
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| 213 | if (!t.isLogicalExpression(parent)) return false;
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| 214 | return parent.operator === "??" || parent.operator === "&&";
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| 215 |
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| 216 | case "&&":
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| 217 | return t.isLogicalExpression(parent, {
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| 218 | operator: "??"
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| 219 | });
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| 220 |
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| 221 | case "??":
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| 222 | return t.isLogicalExpression(parent) && parent.operator !== "??";
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| 223 | }
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| 224 | }
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| 225 |
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| 226 | function Identifier(node, parent, printStack) {
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| 227 | if (node.name === "let") {
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| 228 | const isFollowedByBracket = t.isMemberExpression(parent, {
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| 229 | object: node,
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| 230 | computed: true
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| 231 | }) || t.isOptionalMemberExpression(parent, {
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| 232 | object: node,
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| 233 | computed: true,
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| 234 | optional: false
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| 235 | });
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| 236 | return isFirstInContext(printStack, {
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| 237 | expressionStatement: isFollowedByBracket,
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| 238 | forHead: isFollowedByBracket,
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| 239 | forInHead: isFollowedByBracket,
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| 240 | forOfHead: true
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| 241 | });
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| 242 | }
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| 243 |
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| 244 | return node.name === "async" && t.isForOfStatement(parent) && node === parent.left;
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| 245 | }
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| 246 |
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| 247 | function isFirstInContext(printStack, {
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| 248 | expressionStatement = false,
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| 249 | arrowBody = false,
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| 250 | exportDefault = false,
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| 251 | forHead = false,
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| 252 | forInHead = false,
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| 253 | forOfHead = false
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| 254 | }) {
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| 255 | let i = printStack.length - 1;
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| 256 | let node = printStack[i];
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| 257 | i--;
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| 258 | let parent = printStack[i];
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| 259 |
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| 260 | while (i >= 0) {
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| 261 | if (expressionStatement && t.isExpressionStatement(parent, {
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| 262 | expression: node
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| 263 | }) || exportDefault && t.isExportDefaultDeclaration(parent, {
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| 264 | declaration: node
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| 265 | }) || arrowBody && t.isArrowFunctionExpression(parent, {
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| 266 | body: node
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| 267 | }) || forHead && t.isForStatement(parent, {
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| 268 | init: node
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| 269 | }) || forInHead && t.isForInStatement(parent, {
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| 270 | left: node
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| 271 | }) || forOfHead && t.isForOfStatement(parent, {
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| 272 | left: node
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| 273 | })) {
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| 274 | return true;
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| 275 | }
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| 276 |
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| 277 | if (hasPostfixPart(node, parent) && !t.isNewExpression(parent) || t.isSequenceExpression(parent) && parent.expressions[0] === node || t.isConditional(parent, {
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| 278 | test: node
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| 279 | }) || t.isBinary(parent, {
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| 280 | left: node
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| 281 | }) || t.isAssignmentExpression(parent, {
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| 282 | left: node
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| 283 | })) {
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| 284 | node = parent;
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| 285 | i--;
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| 286 | parent = printStack[i];
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| 287 | } else {
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| 288 | return false;
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| 289 | }
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| 290 | }
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| 291 |
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| 292 | return false;
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| 293 | } |
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