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							202 lines
						
					
					
						
							6.9 KiB
						
					
					
				
			
		
		
	
	
							202 lines
						
					
					
						
							6.9 KiB
						
					
					
				"use strict"; | 
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 | 
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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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 | 
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var _helperPluginUtils = require("@babel/helper-plugin-utils"); | 
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 | 
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var _helperModuleTransforms = require("@babel/helper-module-transforms"); | 
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 | 
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var _helperSimpleAccess = require("@babel/helper-simple-access"); | 
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 | 
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var _core = require("@babel/core"); | 
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 | 
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var _utils = require("babel-plugin-dynamic-import-node/utils"); | 
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 | 
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var _default = (0, _helperPluginUtils.declare)((api, options) => { | 
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  var _api$assumption, _api$assumption2, _api$assumption3; | 
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 | 
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  api.assertVersion(7); | 
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  const transformImportCall = (0, _utils.createDynamicImportTransform)(api); | 
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  const { | 
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    strictNamespace = false, | 
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    mjsStrictNamespace = true, | 
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    allowTopLevelThis, | 
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    strict, | 
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    strictMode, | 
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    noInterop, | 
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    importInterop, | 
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    lazy = false, | 
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    allowCommonJSExports = true | 
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  } = options; | 
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  const constantReexports = (_api$assumption = api.assumption("constantReexports")) != null ? _api$assumption : options.loose; | 
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  const enumerableModuleMeta = (_api$assumption2 = api.assumption("enumerableModuleMeta")) != null ? _api$assumption2 : options.loose; | 
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  const noIncompleteNsImportDetection = (_api$assumption3 = api.assumption("noIncompleteNsImportDetection")) != null ? _api$assumption3 : false; | 
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 | 
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  if (typeof lazy !== "boolean" && typeof lazy !== "function" && (!Array.isArray(lazy) || !lazy.every(item => typeof item === "string"))) { | 
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    throw new Error(`.lazy must be a boolean, array of strings, or a function`); | 
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  } | 
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 | 
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  if (typeof strictNamespace !== "boolean") { | 
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    throw new Error(`.strictNamespace must be a boolean, or undefined`); | 
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  } | 
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 | 
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  if (typeof mjsStrictNamespace !== "boolean") { | 
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    throw new Error(`.mjsStrictNamespace must be a boolean, or undefined`); | 
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  } | 
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 | 
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  const getAssertion = localName => _core.template.expression.ast` | 
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    (function(){ | 
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      throw new Error( | 
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        "The CommonJS '" + "${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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 | 
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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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 | 
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      if (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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 | 
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      path.replaceWith(getAssertion(localName)); | 
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    }, | 
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 | 
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    AssignmentExpression(path) { | 
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      const left = path.get("left"); | 
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 | 
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      if (left.isIdentifier()) { | 
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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 (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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 | 
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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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  }; | 
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  return { | 
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    name: "transform-modules-commonjs", | 
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 | 
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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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 | 
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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 (!path.get("callee").isImport()) return; | 
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        let { | 
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          scope | 
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        } = path; | 
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 | 
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        do { | 
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          scope.rename("require"); | 
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        } while (scope = scope.parent); | 
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 | 
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        transformImportCall(this, path.get("callee")); | 
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      }, | 
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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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 | 
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          if (!allowCommonJSExports) { | 
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            (0, _helperSimpleAccess.default)(path, new Set(["module", "exports"])); | 
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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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 | 
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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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          }); | 
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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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 | 
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            let header; | 
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 | 
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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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 | 
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              if (metadata.lazy) { | 
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                header = _core.template.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.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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 | 
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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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 | 
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          (0, _helperModuleTransforms.ensureStatementsHoisted)(headers); | 
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          path.unshiftContainer("body", headers); | 
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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; |