added babel

1 files changed, 403 insertions, 0 deletions

diff --git a/node_modules/@babel/plugin-transform-modules-systemjs/lib/index.js b/node_modules/@babel/plugin-transform-modules-systemjs/lib/index.js
new file mode 100644
index 00000000..2ea4b522
--- /dev/null
+++ b/node_modules/@babel/plugin-transform-modules-systemjs/lib/index.js
@@ -0,0 +1,403 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+exports.getExportSpecifierName = getExportSpecifierName;
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _helperHoistVariables = require("@babel/helper-hoist-variables");
+var _core = require("@babel/core");
+var _helperModuleTransforms = require("@babel/helper-module-transforms");
+var _helperValidatorIdentifier = require("@babel/helper-validator-identifier");
+const buildTemplate = _core.template.statement(`
+  SYSTEM_REGISTER(MODULE_NAME, SOURCES, function (EXPORT_IDENTIFIER, CONTEXT_IDENTIFIER) {
+    "use strict";
+    BEFORE_BODY;
+    return {
+      setters: SETTERS,
+      execute: EXECUTE,
+    };
+  });
+`);
+const buildExportAll = _core.template.statement(`
+  for (var KEY in TARGET) {
+    if (KEY !== "default" && KEY !== "__esModule") EXPORT_OBJ[KEY] = TARGET[KEY];
+  }
+`);
+const MISSING_PLUGIN_WARNING = `\
+WARNING: Dynamic import() transformation must be enabled using the
+         @babel/plugin-transform-dynamic-import plugin. Babel 8 will
+         no longer transform import() without using that plugin.
+`;
+const MISSING_PLUGIN_ERROR = `\
+ERROR: Dynamic import() transformation must be enabled using the
+       @babel/plugin-transform-dynamic-import plugin. Babel 8
+       no longer transforms import() without using that plugin.
+`;
+function getExportSpecifierName(node, stringSpecifiers) {
+  if (node.type === "Identifier") {
+    return node.name;
+  } else if (node.type === "StringLiteral") {
+    const stringValue = node.value;
+    if (!(0, _helperValidatorIdentifier.isIdentifierName)(stringValue)) {
+      stringSpecifiers.add(stringValue);
+    }
+    return stringValue;
+  } else {
+    throw new Error(`Expected export specifier to be either Identifier or StringLiteral, got ${node.type}`);
+  }
+}
+function constructExportCall(path, exportIdent, exportNames, exportValues, exportStarTarget, stringSpecifiers) {
+  const statements = [];
+  if (!exportStarTarget) {
+    if (exportNames.length === 1) {
+      statements.push(_core.types.expressionStatement(_core.types.callExpression(exportIdent, [_core.types.stringLiteral(exportNames[0]), exportValues[0]])));
+    } else {
+      const objectProperties = [];
+      for (let i = 0; i < exportNames.length; i++) {
+        const exportName = exportNames[i];
+        const exportValue = exportValues[i];
+        objectProperties.push(_core.types.objectProperty(stringSpecifiers.has(exportName) ? _core.types.stringLiteral(exportName) : _core.types.identifier(exportName), exportValue));
+      }
+      statements.push(_core.types.expressionStatement(_core.types.callExpression(exportIdent, [_core.types.objectExpression(objectProperties)])));
+    }
+  } else {
+    const exportObj = path.scope.generateUid("exportObj");
+    statements.push(_core.types.variableDeclaration("var", [_core.types.variableDeclarator(_core.types.identifier(exportObj), _core.types.objectExpression([]))]));
+    statements.push(buildExportAll({
+      KEY: path.scope.generateUidIdentifier("key"),
+      EXPORT_OBJ: _core.types.identifier(exportObj),
+      TARGET: exportStarTarget
+    }));
+    for (let i = 0; i < exportNames.length; i++) {
+      const exportName = exportNames[i];
+      const exportValue = exportValues[i];
+      statements.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.memberExpression(_core.types.identifier(exportObj), _core.types.identifier(exportName)), exportValue)));
+    }
+    statements.push(_core.types.expressionStatement(_core.types.callExpression(exportIdent, [_core.types.identifier(exportObj)])));
+  }
+  return statements;
+}
+var _default = (0, _helperPluginUtils.declare)((api, options) => {
+  api.assertVersion(7);
+  const {
+    systemGlobal = "System",
+    allowTopLevelThis = false
+  } = options;
+  const reassignmentVisited = new WeakSet();
+  const reassignmentVisitor = {
+    "AssignmentExpression|UpdateExpression"(path) {
+      if (reassignmentVisited.has(path.node)) return;
+      reassignmentVisited.add(path.node);
+      const arg = path.isAssignmentExpression() ? path.get("left") : path.get("argument");
+      if (arg.isObjectPattern() || arg.isArrayPattern()) {
+        const exprs = [path.node];
+        for (const name of Object.keys(arg.getBindingIdentifiers())) {
+          if (this.scope.getBinding(name) !== path.scope.getBinding(name)) {
+            return;
+          }
+          const exportedNames = this.exports[name];
+          if (!exportedNames) continue;
+          for (const exportedName of exportedNames) {
+            exprs.push(this.buildCall(exportedName, _core.types.identifier(name)).expression);
+          }
+        }
+        path.replaceWith(_core.types.sequenceExpression(exprs));
+        return;
+      }
+      if (!arg.isIdentifier()) return;
+      const name = arg.node.name;
+      if (this.scope.getBinding(name) !== path.scope.getBinding(name)) return;
+      const exportedNames = this.exports[name];
+      if (!exportedNames) return;
+      let node = path.node;
+      const isPostUpdateExpression = _core.types.isUpdateExpression(node, {
+        prefix: false
+      });
+      if (isPostUpdateExpression) {
+        node = _core.types.binaryExpression(node.operator[0], _core.types.unaryExpression("+", _core.types.cloneNode(node.argument)), _core.types.numericLiteral(1));
+      }
+      for (const exportedName of exportedNames) {
+        node = this.buildCall(exportedName, node).expression;
+      }
+      if (isPostUpdateExpression) {
+        node = _core.types.sequenceExpression([node, path.node]);
+      }
+      path.replaceWith(node);
+    }
+  };
+  return {
+    name: "transform-modules-systemjs",
+    pre() {
+      this.file.set("@babel/plugin-transform-modules-*", "systemjs");
+    },
+    visitor: {
+      ["CallExpression" + (api.types.importExpression ? "|ImportExpression" : "")](path, state) {
+        if (path.isCallExpression() && !_core.types.isImport(path.node.callee)) return;
+        if (path.isCallExpression()) {
+          if (!this.file.has("@babel/plugin-proposal-dynamic-import")) {
+            {
+              console.warn(MISSING_PLUGIN_WARNING);
+            }
+          }
+        } else {
+          if (!this.file.has("@babel/plugin-proposal-dynamic-import")) {
+            throw new Error(MISSING_PLUGIN_ERROR);
+          }
+        }
+        path.replaceWith((0, _helperModuleTransforms.buildDynamicImport)(path.node, false, true, specifier => _core.types.callExpression(_core.types.memberExpression(_core.types.identifier(state.contextIdent), _core.types.identifier("import")), [specifier])));
+      },
+      MetaProperty(path, state) {
+        if (path.node.meta.name === "import" && path.node.property.name === "meta") {
+          path.replaceWith(_core.types.memberExpression(_core.types.identifier(state.contextIdent), _core.types.identifier("meta")));
+        }
+      },
+      ReferencedIdentifier(path, state) {
+        if (path.node.name === "__moduleName" && !path.scope.hasBinding("__moduleName")) {
+          path.replaceWith(_core.types.memberExpression(_core.types.identifier(state.contextIdent), _core.types.identifier("id")));
+        }
+      },
+      Program: {
+        enter(path, state) {
+          state.contextIdent = path.scope.generateUid("context");
+          state.stringSpecifiers = new Set();
+          if (!allowTopLevelThis) {
+            (0, _helperModuleTransforms.rewriteThis)(path);
+          }
+        },
+        exit(path, state) {
+          const scope = path.scope;
+          const exportIdent = scope.generateUid("export");
+          const {
+            contextIdent,
+            stringSpecifiers
+          } = state;
+          const exportMap = Object.create(null);
+          const modules = [];
+          const beforeBody = [];
+          const setters = [];
+          const sources = [];
+          const variableIds = [];
+          const removedPaths = [];
+          function addExportName(key, val) {
+            exportMap[key] = exportMap[key] || [];
+            exportMap[key].push(val);
+          }
+          function pushModule(source, key, specifiers) {
+            let module;
+            modules.forEach(function (m) {
+              if (m.key === source) {
+                module = m;
+              }
+            });
+            if (!module) {
+              modules.push(module = {
+                key: source,
+                imports: [],
+                exports: []
+              });
+            }
+            module[key] = module[key].concat(specifiers);
+          }
+          function buildExportCall(name, val) {
+            return _core.types.expressionStatement(_core.types.callExpression(_core.types.identifier(exportIdent), [_core.types.stringLiteral(name), val]));
+          }
+          const exportNames = [];
+          const exportValues = [];
+          const body = path.get("body");
+          for (const path of body) {
+            if (path.isFunctionDeclaration()) {
+              beforeBody.push(path.node);
+              removedPaths.push(path);
+            } else if (path.isClassDeclaration()) {
+              variableIds.push(_core.types.cloneNode(path.node.id));
+              path.replaceWith(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.cloneNode(path.node.id), _core.types.toExpression(path.node))));
+            } else if (path.isVariableDeclaration()) {
+              path.node.kind = "var";
+            } else if (path.isImportDeclaration()) {
+              const source = path.node.source.value;
+              pushModule(source, "imports", path.node.specifiers);
+              for (const name of Object.keys(path.getBindingIdentifiers())) {
+                scope.removeBinding(name);
+                variableIds.push(_core.types.identifier(name));
+              }
+              path.remove();
+            } else if (path.isExportAllDeclaration()) {
+              pushModule(path.node.source.value, "exports", path.node);
+              path.remove();
+            } else if (path.isExportDefaultDeclaration()) {
+              const declar = path.node.declaration;
+              if (_core.types.isClassDeclaration(declar)) {
+                const id = declar.id;
+                if (id) {
+                  exportNames.push("default");
+                  exportValues.push(scope.buildUndefinedNode());
+                  variableIds.push(_core.types.cloneNode(id));
+                  addExportName(id.name, "default");
+                  path.replaceWith(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.cloneNode(id), _core.types.toExpression(declar))));
+                } else {
+                  exportNames.push("default");
+                  exportValues.push(_core.types.toExpression(declar));
+                  removedPaths.push(path);
+                }
+              } else if (_core.types.isFunctionDeclaration(declar)) {
+                const id = declar.id;
+                if (id) {
+                  beforeBody.push(declar);
+                  exportNames.push("default");
+                  exportValues.push(_core.types.cloneNode(id));
+                  addExportName(id.name, "default");
+                } else {
+                  exportNames.push("default");
+                  exportValues.push(_core.types.toExpression(declar));
+                }
+                removedPaths.push(path);
+              } else {
+                path.replaceWith(buildExportCall("default", declar));
+              }
+            } else if (path.isExportNamedDeclaration()) {
+              const declar = path.node.declaration;
+              if (declar) {
+                path.replaceWith(declar);
+                if (_core.types.isFunction(declar)) {
+                  const name = declar.id.name;
+                  addExportName(name, name);
+                  beforeBody.push(declar);
+                  exportNames.push(name);
+                  exportValues.push(_core.types.cloneNode(declar.id));
+                  removedPaths.push(path);
+                } else if (_core.types.isClass(declar)) {
+                  const name = declar.id.name;
+                  exportNames.push(name);
+                  exportValues.push(scope.buildUndefinedNode());
+                  variableIds.push(_core.types.cloneNode(declar.id));
+                  path.replaceWith(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.cloneNode(declar.id), _core.types.toExpression(declar))));
+                  addExportName(name, name);
+                } else {
+                  if (_core.types.isVariableDeclaration(declar)) {
+                    declar.kind = "var";
+                  }
+                  for (const name of Object.keys(_core.types.getBindingIdentifiers(declar))) {
+                    addExportName(name, name);
+                  }
+                }
+              } else {
+                const specifiers = path.node.specifiers;
+                if (specifiers != null && specifiers.length) {
+                  if (path.node.source) {
+                    pushModule(path.node.source.value, "exports", specifiers);
+                    path.remove();
+                  } else {
+                    const nodes = [];
+                    for (const specifier of specifiers) {
+                      const {
+                        local,
+                        exported
+                      } = specifier;
+                      const binding = scope.getBinding(local.name);
+                      const exportedName = getExportSpecifierName(exported, stringSpecifiers);
+                      if (binding && _core.types.isFunctionDeclaration(binding.path.node)) {
+                        exportNames.push(exportedName);
+                        exportValues.push(_core.types.cloneNode(local));
+                      } else if (!binding) {
+                        nodes.push(buildExportCall(exportedName, local));
+                      }
+                      addExportName(local.name, exportedName);
+                    }
+                    path.replaceWithMultiple(nodes);
+                  }
+                } else {
+                  path.remove();
+                }
+              }
+            }
+          }
+          modules.forEach(function (specifiers) {
+            const setterBody = [];
+            const target = scope.generateUid(specifiers.key);
+            for (let specifier of specifiers.imports) {
+              if (_core.types.isImportNamespaceSpecifier(specifier)) {
+                setterBody.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", specifier.local, _core.types.identifier(target))));
+              } else if (_core.types.isImportDefaultSpecifier(specifier)) {
+                specifier = _core.types.importSpecifier(specifier.local, _core.types.identifier("default"));
+              }
+              if (_core.types.isImportSpecifier(specifier)) {
+                const {
+                  imported
+                } = specifier;
+                setterBody.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", specifier.local, _core.types.memberExpression(_core.types.identifier(target), specifier.imported, imported.type === "StringLiteral"))));
+              }
+            }
+            if (specifiers.exports.length) {
+              const exportNames = [];
+              const exportValues = [];
+              let hasExportStar = false;
+              for (const node of specifiers.exports) {
+                if (_core.types.isExportAllDeclaration(node)) {
+                  hasExportStar = true;
+                } else if (_core.types.isExportSpecifier(node)) {
+                  const exportedName = getExportSpecifierName(node.exported, stringSpecifiers);
+                  exportNames.push(exportedName);
+                  exportValues.push(_core.types.memberExpression(_core.types.identifier(target), node.local, _core.types.isStringLiteral(node.local)));
+                } else {}
+              }
+              setterBody.push(...constructExportCall(path, _core.types.identifier(exportIdent), exportNames, exportValues, hasExportStar ? _core.types.identifier(target) : null, stringSpecifiers));
+            }
+            sources.push(_core.types.stringLiteral(specifiers.key));
+            setters.push(_core.types.functionExpression(null, [_core.types.identifier(target)], _core.types.blockStatement(setterBody)));
+          });
+          let moduleName = (0, _helperModuleTransforms.getModuleName)(this.file.opts, options);
+          if (moduleName) moduleName = _core.types.stringLiteral(moduleName);
+          (0, _helperHoistVariables.default)(path, (id, name, hasInit) => {
+            variableIds.push(id);
+            if (!hasInit && name in exportMap) {
+              for (const exported of exportMap[name]) {
+                exportNames.push(exported);
+                exportValues.push(scope.buildUndefinedNode());
+              }
+            }
+          });
+          if (variableIds.length) {
+            beforeBody.unshift(_core.types.variableDeclaration("var", variableIds.map(id => _core.types.variableDeclarator(id))));
+          }
+          if (exportNames.length) {
+            beforeBody.push(...constructExportCall(path, _core.types.identifier(exportIdent), exportNames, exportValues, null, stringSpecifiers));
+          }
+          path.traverse(reassignmentVisitor, {
+            exports: exportMap,
+            buildCall: buildExportCall,
+            scope
+          });
+          for (const path of removedPaths) {
+            path.remove();
+          }
+          let hasTLA = false;
+          path.traverse({
+            AwaitExpression(path) {
+              hasTLA = true;
+              path.stop();
+            },
+            Function(path) {
+              path.skip();
+            },
+            noScope: true
+          });
+          path.node.body = [buildTemplate({
+            SYSTEM_REGISTER: _core.types.memberExpression(_core.types.identifier(systemGlobal), _core.types.identifier("register")),
+            BEFORE_BODY: beforeBody,
+            MODULE_NAME: moduleName,
+            SETTERS: _core.types.arrayExpression(setters),
+            EXECUTE: _core.types.functionExpression(null, [], _core.types.blockStatement(path.node.body), false, hasTLA),
+            SOURCES: _core.types.arrayExpression(sources),
+            EXPORT_IDENTIFIER: _core.types.identifier(exportIdent),
+            CONTEXT_IDENTIFIER: _core.types.identifier(contextIdent)
+          })];
+        }
+      }
+    }
+  };
+});
+exports.default = _default;
+
+//# sourceMappingURL=index.js.map