parentheses.js 9.9 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213
  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.ArrowFunctionExpression = ArrowFunctionExpression;
  6. exports.AssignmentExpression = AssignmentExpression;
  7. exports.Binary = Binary;
  8. exports.BinaryExpression = BinaryExpression;
  9. exports.ClassExpression = ClassExpression;
  10. exports.ConditionalExpression = ConditionalExpression;
  11. exports.DoExpression = DoExpression;
  12. exports.FunctionExpression = FunctionExpression;
  13. exports.FunctionTypeAnnotation = FunctionTypeAnnotation;
  14. exports.Identifier = Identifier;
  15. exports.LogicalExpression = LogicalExpression;
  16. exports.NullableTypeAnnotation = NullableTypeAnnotation;
  17. exports.ObjectExpression = ObjectExpression;
  18. exports.OptionalIndexedAccessType = OptionalIndexedAccessType;
  19. exports.OptionalCallExpression = exports.OptionalMemberExpression = OptionalMemberExpression;
  20. exports.SequenceExpression = SequenceExpression;
  21. exports.TSSatisfiesExpression = exports.TSAsExpression = TSAsExpression;
  22. exports.TSInferType = TSInferType;
  23. exports.TSInstantiationExpression = TSInstantiationExpression;
  24. exports.UnaryLike = exports.TSTypeAssertion = UnaryLike;
  25. exports.TSIntersectionType = exports.TSUnionType = TSUnionType;
  26. exports.IntersectionTypeAnnotation = exports.UnionTypeAnnotation = UnionTypeAnnotation;
  27. exports.UpdateExpression = UpdateExpression;
  28. exports.AwaitExpression = exports.YieldExpression = YieldExpression;
  29. var _t = require("@babel/types");
  30. var _index = require("./index.js");
  31. const {
  32. isArrayTypeAnnotation,
  33. isBinaryExpression,
  34. isCallExpression,
  35. isExportDeclaration,
  36. isForOfStatement,
  37. isIndexedAccessType,
  38. isMemberExpression,
  39. isObjectPattern,
  40. isOptionalMemberExpression,
  41. isYieldExpression
  42. } = _t;
  43. const PRECEDENCE = new Map([["||", 0], ["??", 0], ["|>", 0], ["&&", 1], ["|", 2], ["^", 3], ["&", 4], ["==", 5], ["===", 5], ["!=", 5], ["!==", 5], ["<", 6], [">", 6], ["<=", 6], [">=", 6], ["in", 6], ["instanceof", 6], [">>", 7], ["<<", 7], [">>>", 7], ["+", 8], ["-", 8], ["*", 9], ["/", 9], ["%", 9], ["**", 10]]);
  44. function getBinaryPrecedence(node, nodeType) {
  45. if (nodeType === "BinaryExpression" || nodeType === "LogicalExpression") {
  46. return PRECEDENCE.get(node.operator);
  47. }
  48. if (nodeType === "TSAsExpression" || nodeType === "TSSatisfiesExpression") {
  49. return PRECEDENCE.get("in");
  50. }
  51. }
  52. function isTSTypeExpression(nodeType) {
  53. return nodeType === "TSAsExpression" || nodeType === "TSSatisfiesExpression" || nodeType === "TSTypeAssertion";
  54. }
  55. const isClassExtendsClause = (node, parent) => {
  56. const parentType = parent.type;
  57. return (parentType === "ClassDeclaration" || parentType === "ClassExpression") && parent.superClass === node;
  58. };
  59. const hasPostfixPart = (node, parent) => {
  60. const parentType = parent.type;
  61. return (parentType === "MemberExpression" || parentType === "OptionalMemberExpression") && parent.object === node || (parentType === "CallExpression" || parentType === "OptionalCallExpression" || parentType === "NewExpression") && parent.callee === node || parentType === "TaggedTemplateExpression" && parent.tag === node || parentType === "TSNonNullExpression";
  62. };
  63. function NullableTypeAnnotation(node, parent) {
  64. return isArrayTypeAnnotation(parent);
  65. }
  66. function FunctionTypeAnnotation(node, parent, tokenContext) {
  67. const parentType = parent.type;
  68. return parentType === "UnionTypeAnnotation" || parentType === "IntersectionTypeAnnotation" || parentType === "ArrayTypeAnnotation" || Boolean(tokenContext & _index.TokenContext.arrowFlowReturnType);
  69. }
  70. function UpdateExpression(node, parent) {
  71. return hasPostfixPart(node, parent) || isClassExtendsClause(node, parent);
  72. }
  73. function ObjectExpression(node, parent, tokenContext) {
  74. return Boolean(tokenContext & (_index.TokenContext.expressionStatement | _index.TokenContext.arrowBody));
  75. }
  76. function DoExpression(node, parent, tokenContext) {
  77. return !node.async && Boolean(tokenContext & _index.TokenContext.expressionStatement);
  78. }
  79. function Binary(node, parent) {
  80. const parentType = parent.type;
  81. if (node.type === "BinaryExpression" && node.operator === "**" && parentType === "BinaryExpression" && parent.operator === "**") {
  82. return parent.left === node;
  83. }
  84. if (isClassExtendsClause(node, parent)) {
  85. return true;
  86. }
  87. if (hasPostfixPart(node, parent) || parentType === "UnaryExpression" || parentType === "SpreadElement" || parentType === "AwaitExpression") {
  88. return true;
  89. }
  90. const parentPos = getBinaryPrecedence(parent, parentType);
  91. if (parentPos != null) {
  92. const nodePos = getBinaryPrecedence(node, node.type);
  93. if (parentPos === nodePos && parentType === "BinaryExpression" && parent.right === node || parentPos > nodePos) {
  94. return true;
  95. }
  96. }
  97. return undefined;
  98. }
  99. function UnionTypeAnnotation(node, parent) {
  100. const parentType = parent.type;
  101. return parentType === "ArrayTypeAnnotation" || parentType === "NullableTypeAnnotation" || parentType === "IntersectionTypeAnnotation" || parentType === "UnionTypeAnnotation";
  102. }
  103. function OptionalIndexedAccessType(node, parent) {
  104. return isIndexedAccessType(parent) && parent.objectType === node;
  105. }
  106. function TSAsExpression(node, parent) {
  107. if ((parent.type === "AssignmentExpression" || parent.type === "AssignmentPattern") && parent.left === node) {
  108. return true;
  109. }
  110. if (parent.type === "BinaryExpression" && (parent.operator === "|" || parent.operator === "&") && node === parent.left) {
  111. return true;
  112. }
  113. return Binary(node, parent);
  114. }
  115. function TSUnionType(node, parent) {
  116. const parentType = parent.type;
  117. return parentType === "TSArrayType" || parentType === "TSOptionalType" || parentType === "TSIntersectionType" || parentType === "TSUnionType" || parentType === "TSRestType";
  118. }
  119. function TSInferType(node, parent) {
  120. const parentType = parent.type;
  121. return parentType === "TSArrayType" || parentType === "TSOptionalType";
  122. }
  123. function TSInstantiationExpression(node, parent) {
  124. const parentType = parent.type;
  125. return (parentType === "CallExpression" || parentType === "OptionalCallExpression" || parentType === "NewExpression" || parentType === "TSInstantiationExpression") && !!parent.typeParameters;
  126. }
  127. function BinaryExpression(node, parent, tokenContext, inForStatementInit) {
  128. return node.operator === "in" && inForStatementInit;
  129. }
  130. function SequenceExpression(node, parent) {
  131. const parentType = parent.type;
  132. if (parentType === "ForStatement" || parentType === "ThrowStatement" || parentType === "ReturnStatement" || parentType === "IfStatement" && parent.test === node || parentType === "WhileStatement" && parent.test === node || parentType === "ForInStatement" && parent.right === node || parentType === "SwitchStatement" && parent.discriminant === node || parentType === "ExpressionStatement" && parent.expression === node) {
  133. return false;
  134. }
  135. return true;
  136. }
  137. function YieldExpression(node, parent) {
  138. const parentType = parent.type;
  139. return parentType === "BinaryExpression" || parentType === "LogicalExpression" || parentType === "UnaryExpression" || parentType === "SpreadElement" || hasPostfixPart(node, parent) || parentType === "AwaitExpression" && isYieldExpression(node) || parentType === "ConditionalExpression" && node === parent.test || isClassExtendsClause(node, parent) || isTSTypeExpression(parentType);
  140. }
  141. function ClassExpression(node, parent, tokenContext) {
  142. return Boolean(tokenContext & (_index.TokenContext.expressionStatement | _index.TokenContext.exportDefault));
  143. }
  144. function UnaryLike(node, parent) {
  145. return hasPostfixPart(node, parent) || isBinaryExpression(parent) && parent.operator === "**" && parent.left === node || isClassExtendsClause(node, parent);
  146. }
  147. function FunctionExpression(node, parent, tokenContext) {
  148. return Boolean(tokenContext & (_index.TokenContext.expressionStatement | _index.TokenContext.exportDefault));
  149. }
  150. function ArrowFunctionExpression(node, parent) {
  151. return isExportDeclaration(parent) || ConditionalExpression(node, parent);
  152. }
  153. function ConditionalExpression(node, parent) {
  154. const parentType = parent.type;
  155. if (parentType === "UnaryExpression" || parentType === "SpreadElement" || parentType === "BinaryExpression" || parentType === "LogicalExpression" || parentType === "ConditionalExpression" && parent.test === node || parentType === "AwaitExpression" || isTSTypeExpression(parentType)) {
  156. return true;
  157. }
  158. return UnaryLike(node, parent);
  159. }
  160. function OptionalMemberExpression(node, parent) {
  161. return isCallExpression(parent) && parent.callee === node || isMemberExpression(parent) && parent.object === node;
  162. }
  163. function AssignmentExpression(node, parent) {
  164. if (isObjectPattern(node.left)) {
  165. return true;
  166. } else {
  167. return ConditionalExpression(node, parent);
  168. }
  169. }
  170. function LogicalExpression(node, parent) {
  171. const parentType = parent.type;
  172. if (isTSTypeExpression(parentType)) return true;
  173. if (parentType !== "LogicalExpression") return false;
  174. switch (node.operator) {
  175. case "||":
  176. return parent.operator === "??" || parent.operator === "&&";
  177. case "&&":
  178. return parent.operator === "??";
  179. case "??":
  180. return parent.operator !== "??";
  181. }
  182. }
  183. function Identifier(node, parent, tokenContext) {
  184. var _node$extra;
  185. const parentType = parent.type;
  186. if ((_node$extra = node.extra) != null && _node$extra.parenthesized && parentType === "AssignmentExpression" && parent.left === node) {
  187. const rightType = parent.right.type;
  188. if ((rightType === "FunctionExpression" || rightType === "ClassExpression") && parent.right.id == null) {
  189. return true;
  190. }
  191. }
  192. if (node.name === "let") {
  193. const isFollowedByBracket = isMemberExpression(parent, {
  194. object: node,
  195. computed: true
  196. }) || isOptionalMemberExpression(parent, {
  197. object: node,
  198. computed: true,
  199. optional: false
  200. });
  201. if (isFollowedByBracket && tokenContext & (_index.TokenContext.expressionStatement | _index.TokenContext.forHead | _index.TokenContext.forInHead)) {
  202. return true;
  203. }
  204. return Boolean(tokenContext & _index.TokenContext.forOfHead);
  205. }
  206. return node.name === "async" && isForOfStatement(parent, {
  207. left: node,
  208. await: false
  209. });
  210. }
  211. //# sourceMappingURL=parentheses.js.map