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authorMinteck <contact@minteck.org>2022-10-18 08:59:09 +0200
committerMinteck <contact@minteck.org>2022-10-18 08:59:09 +0200
commit2c4ae43e688a9873e86211ea0e7aeb9ba770dd77 (patch)
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parent108525534c28013cfe1897c30e4565f9893f3766 (diff)
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Diffstat (limited to 'alarm/node_modules/acorn-globals/index.js')
-rw-r--r--alarm/node_modules/acorn-globals/index.js179
1 files changed, 179 insertions, 0 deletions
diff --git a/alarm/node_modules/acorn-globals/index.js b/alarm/node_modules/acorn-globals/index.js
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+'use strict';
+
+var acorn = require('acorn');
+var walk = require('acorn-walk');
+
+function isScope(node) {
+ return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration' || node.type === 'ArrowFunctionExpression' || node.type === 'Program';
+}
+function isBlockScope(node) {
+ return node.type === 'BlockStatement' || isScope(node);
+}
+
+function declaresArguments(node) {
+ return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration';
+}
+
+function declaresThis(node) {
+ return node.type === 'FunctionExpression' || node.type === 'FunctionDeclaration';
+}
+
+function reallyParse(source, options) {
+ var parseOptions = Object.assign({}, options,
+ {
+ allowReturnOutsideFunction: true,
+ allowImportExportEverywhere: true,
+ allowHashBang: true
+ }
+ );
+ return acorn.parse(source, parseOptions);
+}
+module.exports = findGlobals;
+module.exports.parse = reallyParse;
+function findGlobals(source, options) {
+ options = options || {};
+ var globals = [];
+ var ast;
+ // istanbul ignore else
+ if (typeof source === 'string') {
+ ast = reallyParse(source, options);
+ } else {
+ ast = source;
+ }
+ // istanbul ignore if
+ if (!(ast && typeof ast === 'object' && ast.type === 'Program')) {
+ throw new TypeError('Source must be either a string of JavaScript or an acorn AST');
+ }
+ var declareFunction = function (node) {
+ var fn = node;
+ fn.locals = fn.locals || Object.create(null);
+ node.params.forEach(function (node) {
+ declarePattern(node, fn);
+ });
+ if (node.id) {
+ fn.locals[node.id.name] = true;
+ }
+ };
+ var declareClass = function (node) {
+ node.locals = node.locals || Object.create(null);
+ if (node.id) {
+ node.locals[node.id.name] = true;
+ }
+ };
+ var declarePattern = function (node, parent) {
+ switch (node.type) {
+ case 'Identifier':
+ parent.locals[node.name] = true;
+ break;
+ case 'ObjectPattern':
+ node.properties.forEach(function (node) {
+ declarePattern(node.value || node.argument, parent);
+ });
+ break;
+ case 'ArrayPattern':
+ node.elements.forEach(function (node) {
+ if (node) declarePattern(node, parent);
+ });
+ break;
+ case 'RestElement':
+ declarePattern(node.argument, parent);
+ break;
+ case 'AssignmentPattern':
+ declarePattern(node.left, parent);
+ break;
+ // istanbul ignore next
+ default:
+ throw new Error('Unrecognized pattern type: ' + node.type);
+ }
+ };
+ var declareModuleSpecifier = function (node, parents) {
+ ast.locals = ast.locals || Object.create(null);
+ ast.locals[node.local.name] = true;
+ };
+ walk.ancestor(ast, {
+ 'VariableDeclaration': function (node, parents) {
+ var parent = null;
+ for (var i = parents.length - 1; i >= 0 && parent === null; i--) {
+ if (node.kind === 'var' ? isScope(parents[i]) : isBlockScope(parents[i])) {
+ parent = parents[i];
+ }
+ }
+ parent.locals = parent.locals || Object.create(null);
+ node.declarations.forEach(function (declaration) {
+ declarePattern(declaration.id, parent);
+ });
+ },
+ 'FunctionDeclaration': function (node, parents) {
+ var parent = null;
+ for (var i = parents.length - 2; i >= 0 && parent === null; i--) {
+ if (isScope(parents[i])) {
+ parent = parents[i];
+ }
+ }
+ parent.locals = parent.locals || Object.create(null);
+ if (node.id) {
+ parent.locals[node.id.name] = true;
+ }
+ declareFunction(node);
+ },
+ 'Function': declareFunction,
+ 'ClassDeclaration': function (node, parents) {
+ var parent = null;
+ for (var i = parents.length - 2; i >= 0 && parent === null; i--) {
+ if (isBlockScope(parents[i])) {
+ parent = parents[i];
+ }
+ }
+ parent.locals = parent.locals || Object.create(null);
+ if (node.id) {
+ parent.locals[node.id.name] = true;
+ }
+ declareClass(node);
+ },
+ 'Class': declareClass,
+ 'TryStatement': function (node) {
+ if (node.handler === null) return;
+ node.handler.locals = node.handler.locals || Object.create(null);
+ declarePattern(node.handler.param, node.handler);
+ },
+ 'ImportDefaultSpecifier': declareModuleSpecifier,
+ 'ImportSpecifier': declareModuleSpecifier,
+ 'ImportNamespaceSpecifier': declareModuleSpecifier
+ });
+ function identifier(node, parents) {
+ var name = node.name;
+ if (name === 'undefined') return;
+ for (var i = 0; i < parents.length; i++) {
+ if (name === 'arguments' && declaresArguments(parents[i])) {
+ return;
+ }
+ if (parents[i].locals && name in parents[i].locals) {
+ return;
+ }
+ }
+ node.parents = parents.slice();
+ globals.push(node);
+ }
+ walk.ancestor(ast, {
+ 'VariablePattern': identifier,
+ 'Identifier': identifier,
+ 'ThisExpression': function (node, parents) {
+ for (var i = 0; i < parents.length; i++) {
+ if (declaresThis(parents[i])) {
+ return;
+ }
+ }
+ node.parents = parents.slice();
+ globals.push(node);
+ }
+ });
+ var groupedGlobals = Object.create(null);
+ globals.forEach(function (node) {
+ var name = node.type === 'ThisExpression' ? 'this' : node.name;
+ groupedGlobals[name] = (groupedGlobals[name] || []);
+ groupedGlobals[name].push(node);
+ });
+ return Object.keys(groupedGlobals).sort().map(function (name) {
+ return {name: name, nodes: groupedGlobals[name]};
+ });
+}