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112 KiB
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{"version":3,"file":"index.mjs","sources":["src/get-innermost-scope.js","src/find-variable.js","src/token-predicate.js","src/get-function-head-location.js","src/get-static-value.js","src/get-string-if-constant.js","src/get-property-name.js","src/get-function-name-with-kind.js","src/has-side-effect.js","src/is-parenthesized.js","src/pattern-matcher.js","src/reference-tracker.js","src/index.js"],"sourcesContent":["/**\n * Get the innermost scope which contains a given location.\n * @param {Scope} initialScope The initial scope to search.\n * @param {Node} node The location to search.\n * @returns {Scope} The innermost scope.\n */\nexport function getInnermostScope(initialScope, node) {\n const location = node.range[0]\n\n let scope = initialScope\n let found = false\n do {\n found = false\n for (const childScope of scope.childScopes) {\n const range = childScope.block.range\n\n if (range[0] <= location && location < range[1]) {\n scope = childScope\n found = true\n break\n }\n }\n } while (found)\n\n return scope\n}\n","import { getInnermostScope } from \"./get-innermost-scope\"\n\n/**\n * Find the variable of a given name.\n * @param {Scope} initialScope The scope to start finding.\n * @param {string|Node} nameOrNode The variable name to find. If this is a Node object then it should be an Identifier node.\n * @returns {Variable|null} The found variable or null.\n */\nexport function findVariable(initialScope, nameOrNode) {\n let name = \"\"\n let scope = initialScope\n\n if (typeof nameOrNode === \"string\") {\n name = nameOrNode\n } else {\n name = nameOrNode.name\n scope = getInnermostScope(scope, nameOrNode)\n }\n\n while (scope != null) {\n const variable = scope.set.get(name)\n if (variable != null) {\n return variable\n }\n scope = scope.upper\n }\n\n return null\n}\n","/**\n * Negate the result of `this` calling.\n * @param {Token} token The token to check.\n * @returns {boolean} `true` if the result of `this(token)` is `false`.\n */\nfunction negate0(token) {\n return !this(token) //eslint-disable-line no-invalid-this\n}\n\n/**\n * Creates the negate function of the given function.\n * @param {function(Token):boolean} f - The function to negate.\n * @returns {function(Token):boolean} Negated function.\n */\nfunction negate(f) {\n return negate0.bind(f)\n}\n\n/**\n * Checks if the given token is a PunctuatorToken with the given value\n * @param {Token} token - The token to check.\n * @param {string} value - The value to check.\n * @returns {boolean} `true` if the token is a PunctuatorToken with the given value.\n */\nfunction isPunctuatorTokenWithValue(token, value) {\n return token.type === \"Punctuator\" && token.value === value\n}\n\n/**\n * Checks if the given token is an arrow token or not.\n * @param {Token} token - The token to check.\n * @returns {boolean} `true` if the token is an arrow token.\n */\nexport function isArrowToken(token) {\n return isPunctuatorTokenWithValue(token, \"=>\")\n}\n\n/**\n * Checks if the given token is a comma token or not.\n * @param {Token} token - The token to check.\n * @returns {boolean} `true` if the token is a comma token.\n */\nexport function isCommaToken(token) {\n return isPunctuatorTokenWithValue(token, \",\")\n}\n\n/**\n * Checks if the given token is a semicolon token or not.\n * @param {Token} token - The token to check.\n * @returns {boolean} `true` if the token is a semicolon token.\n */\nexport function isSemicolonToken(token) {\n return isPunctuatorTokenWithValue(token, \";\")\n}\n\n/**\n * Checks if the given token is a colon token or not.\n * @param {Token} token - The token to check.\n * @returns {boolean} `true` if the token is a colon token.\n */\nexport function isColonToken(token) {\n return isPunctuatorTokenWithValue(token, \":\")\n}\n\n/**\n * Checks if the given token is an opening parenthesis token or not.\n * @param {Token} token
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