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					194 lines
				
				7.7 KiB
			
		
		
			
		
	
	
					194 lines
				
				7.7 KiB
			| 
								 
											3 years ago
										 
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								"use strict";
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								Object.defineProperty(exports, "__esModule", {
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								  value: true
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								});
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								exports.default = void 0;
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								var _helperPluginUtils = require("@babel/helper-plugin-utils");
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								var _helperModuleTransforms = require("@babel/helper-module-transforms");
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								var _helperSimpleAccess = require("@babel/helper-simple-access");
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								var _core = require("@babel/core");
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								var _dynamicImport = require("./dynamic-import");
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								var _default = (0, _helperPluginUtils.declare)((api, options) => {
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								  var _api$assumption, _api$assumption2, _api$assumption3;
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								  api.assertVersion(7);
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								  const {
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								    strictNamespace = false,
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								    mjsStrictNamespace = strictNamespace,
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								    allowTopLevelThis,
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								    strict,
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								    strictMode,
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								    noInterop,
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								    importInterop,
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								    lazy = false,
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								    allowCommonJSExports = true,
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								    loose = false
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								  } = options;
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								  const constantReexports = (_api$assumption = api.assumption("constantReexports")) != null ? _api$assumption : loose;
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								  const enumerableModuleMeta = (_api$assumption2 = api.assumption("enumerableModuleMeta")) != null ? _api$assumption2 : loose;
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								  const noIncompleteNsImportDetection = (_api$assumption3 = api.assumption("noIncompleteNsImportDetection")) != null ? _api$assumption3 : false;
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								  if (typeof lazy !== "boolean" && typeof lazy !== "function" && (!Array.isArray(lazy) || !lazy.every(item => typeof item === "string"))) {
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								    throw new Error(`.lazy must be a boolean, array of strings, or a function`);
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								  }
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								  if (typeof strictNamespace !== "boolean") {
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								    throw new Error(`.strictNamespace must be a boolean, or undefined`);
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								  }
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								  if (typeof mjsStrictNamespace !== "boolean") {
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								    throw new Error(`.mjsStrictNamespace must be a boolean, or undefined`);
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								  }
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								  const getAssertion = localName => _core.template.expression.ast`
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								    (function(){
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								      throw new Error(
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								        "The CommonJS '" + "${localName}" + "' variable is not available in ES6 modules." +
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								        "Consider setting setting sourceType:script or sourceType:unambiguous in your " +
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								        "Babel config for this file.");
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								    })()
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								  `;
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								  const moduleExportsVisitor = {
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								    ReferencedIdentifier(path) {
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								      const localName = path.node.name;
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								      if (localName !== "module" && localName !== "exports") return;
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								      const localBinding = path.scope.getBinding(localName);
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								      const rootBinding = this.scope.getBinding(localName);
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								      if (
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								      rootBinding !== localBinding || path.parentPath.isObjectProperty({
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								        value: path.node
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								      }) && path.parentPath.parentPath.isObjectPattern() || path.parentPath.isAssignmentExpression({
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								        left: path.node
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								      }) || path.isAssignmentExpression({
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								        left: path.node
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								      })) {
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								        return;
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								      }
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								      path.replaceWith(getAssertion(localName));
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								    },
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								    UpdateExpression(path) {
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								      const arg = path.get("argument");
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								      if (!arg.isIdentifier()) return;
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								      const localName = arg.node.name;
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								      if (localName !== "module" && localName !== "exports") return;
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								      const localBinding = path.scope.getBinding(localName);
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								      const rootBinding = this.scope.getBinding(localName);
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								      if (rootBinding !== localBinding) return;
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								      path.replaceWith(_core.types.assignmentExpression(path.node.operator[0] + "=", arg.node, getAssertion(localName)));
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								    },
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								    AssignmentExpression(path) {
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								      const left = path.get("left");
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								      if (left.isIdentifier()) {
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								        const localName = left.node.name;
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								        if (localName !== "module" && localName !== "exports") return;
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								        const localBinding = path.scope.getBinding(localName);
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								        const rootBinding = this.scope.getBinding(localName);
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								        if (rootBinding !== localBinding) return;
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								        const right = path.get("right");
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								        right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
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								      } else if (left.isPattern()) {
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								        const ids = left.getOuterBindingIdentifiers();
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								        const localName = Object.keys(ids).filter(localName => {
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								          if (localName !== "module" && localName !== "exports") return false;
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								          return this.scope.getBinding(localName) === path.scope.getBinding(localName);
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								        })[0];
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								        if (localName) {
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								          const right = path.get("right");
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								          right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
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								        }
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								      }
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								    }
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								  };
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								  return {
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								    name: "transform-modules-commonjs",
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								    pre() {
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								      this.file.set("@babel/plugin-transform-modules-*", "commonjs");
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								    },
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								    visitor: {
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								      CallExpression(path) {
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								        if (!this.file.has("@babel/plugin-proposal-dynamic-import")) return;
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								        if (!_core.types.isImport(path.node.callee)) return;
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								        let {
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								          scope
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								        } = path;
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								        do {
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								          scope.rename("require");
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								        } while (scope = scope.parent);
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								        (0, _dynamicImport.transformDynamicImport)(path, noInterop, this.file);
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								      },
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								      Program: {
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								        exit(path, state) {
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								          if (!(0, _helperModuleTransforms.isModule)(path)) return;
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								          path.scope.rename("exports");
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								          path.scope.rename("module");
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								          path.scope.rename("require");
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								          path.scope.rename("__filename");
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								          path.scope.rename("__dirname");
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								          if (!allowCommonJSExports) {
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								            (0, _helperSimpleAccess.default)(path, new Set(["module", "exports"]), false);
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								            path.traverse(moduleExportsVisitor, {
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								              scope: path.scope
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								            });
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								          }
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								          let moduleName = (0, _helperModuleTransforms.getModuleName)(this.file.opts, options);
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								          if (moduleName) moduleName = _core.types.stringLiteral(moduleName);
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								          const {
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								            meta,
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								            headers
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								          } = (0, _helperModuleTransforms.rewriteModuleStatementsAndPrepareHeader)(path, {
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								            exportName: "exports",
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								            constantReexports,
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								            enumerableModuleMeta,
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								            strict,
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								            strictMode,
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								            allowTopLevelThis,
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								            noInterop,
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								            importInterop,
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								            lazy,
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								            esNamespaceOnly: typeof state.filename === "string" && /\.mjs$/.test(state.filename) ? mjsStrictNamespace : strictNamespace,
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								            noIncompleteNsImportDetection,
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								            filename: this.file.opts.filename
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								          });
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								          for (const [source, metadata] of meta.source) {
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								            const loadExpr = _core.types.callExpression(_core.types.identifier("require"), [_core.types.stringLiteral(source)]);
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								            let header;
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								            if ((0, _helperModuleTransforms.isSideEffectImport)(metadata)) {
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								              if (metadata.lazy) throw new Error("Assertion failure");
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								              header = _core.types.expressionStatement(loadExpr);
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								            } else {
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								              const init = (0, _helperModuleTransforms.wrapInterop)(path, loadExpr, metadata.interop) || loadExpr;
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								              if (metadata.lazy) {
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								                header = _core.template.statement.ast`
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								                  function ${metadata.name}() {
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								                    const data = ${init};
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								                    ${metadata.name} = function(){ return data; };
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								                    return data;
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								                  }
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								                `;
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								              } else {
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								                header = _core.template.statement.ast`
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								                  var ${metadata.name} = ${init};
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								                `;
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								              }
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								            }
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								            header.loc = metadata.loc;
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								            headers.push(header);
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								            headers.push(...(0, _helperModuleTransforms.buildNamespaceInitStatements)(meta, metadata, constantReexports));
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								          }
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								          (0, _helperModuleTransforms.ensureStatementsHoisted)(headers);
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								          path.unshiftContainer("body", headers);
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								          path.get("body").forEach(path => {
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								            if (headers.indexOf(path.node) === -1) return;
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								            if (path.isVariableDeclaration()) {
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								              path.scope.registerDeclaration(path);
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								            }
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								          });
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								        }
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								      }
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								    }
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								  };
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								});
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								exports.default = _default;
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								//# sourceMappingURL=index.js.map
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