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app_vue/node_modules/@babel/plugin-transform-computed-properties/lib/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+var _core = require("@babel/core");
+var _helperPluginUtils = require("@babel/helper-plugin-utils");
+var _template = require("@babel/template");
+{
+  var DefineAccessorHelper = _template.default.expression.ast`
+    function (type, obj, key, fn) {
+      var desc = { configurable: true, enumerable: true };
+      desc[type] = fn;
+      return Object.defineProperty(obj, key, desc);
+    }
+  `;
+  DefineAccessorHelper._compact = true;
+}
+var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
+  var _api$assumption;
+  api.assertVersion(7);
+  const setComputedProperties = (_api$assumption = api.assumption("setComputedProperties")) != null ? _api$assumption : options.loose;
+  const pushComputedProps = setComputedProperties ? pushComputedPropsLoose : pushComputedPropsSpec;
+  function buildDefineAccessor(state, obj, prop) {
+    const type = prop.kind;
+    const key = !prop.computed && _core.types.isIdentifier(prop.key) ? _core.types.stringLiteral(prop.key.name) : prop.key;
+    const fn = getValue(prop);
+    {
+      let helper;
+      if (state.availableHelper("defineAccessor")) {
+        helper = state.addHelper("defineAccessor");
+      } else {
+        const file = state.file;
+        helper = file.get("fallbackDefineAccessorHelper");
+        if (!helper) {
+          const id = file.scope.generateUidIdentifier("defineAccessor");
+          file.scope.push({
+            id,
+            init: DefineAccessorHelper
+          });
+          file.set("fallbackDefineAccessorHelper", helper = id);
+        }
+        helper = _core.types.cloneNode(helper);
+      }
+      return _core.types.callExpression(helper, [_core.types.stringLiteral(type), obj, key, fn]);
+    }
+  }
+  function getValue(prop) {
+    if (_core.types.isObjectProperty(prop)) {
+      return prop.value;
+    } else if (_core.types.isObjectMethod(prop)) {
+      return _core.types.functionExpression(null, prop.params, prop.body, prop.generator, prop.async);
+    }
+  }
+  function pushAssign(objId, prop, body) {
+    body.push(_core.types.expressionStatement(_core.types.assignmentExpression("=", _core.types.memberExpression(_core.types.cloneNode(objId), prop.key, prop.computed || _core.types.isLiteral(prop.key)), getValue(prop))));
+  }
+  function pushComputedPropsLoose(info) {
+    const {
+      computedProps,
+      state,
+      initPropExpression,
+      objId,
+      body
+    } = info;
+    for (const prop of computedProps) {
+      if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
+        if (computedProps.length === 1) {
+          return buildDefineAccessor(state, initPropExpression, prop);
+        } else {
+          body.push(_core.types.expressionStatement(buildDefineAccessor(state, _core.types.cloneNode(objId), prop)));
+        }
+      } else {
+        pushAssign(_core.types.cloneNode(objId), prop, body);
+      }
+    }
+  }
+  function pushComputedPropsSpec(info) {
+    const {
+      objId,
+      body,
+      computedProps,
+      state
+    } = info;
+    const CHUNK_LENGTH_CAP = 10;
+    let currentChunk = null;
+    const computedPropsChunks = [];
+    for (const prop of computedProps) {
+      if (!currentChunk || currentChunk.length === CHUNK_LENGTH_CAP) {
+        currentChunk = [];
+        computedPropsChunks.push(currentChunk);
+      }
+      currentChunk.push(prop);
+    }
+    for (const chunk of computedPropsChunks) {
+      const single = computedPropsChunks.length === 1;
+      let node = single ? info.initPropExpression : _core.types.cloneNode(objId);
+      for (const prop of chunk) {
+        if (_core.types.isObjectMethod(prop) && (prop.kind === "get" || prop.kind === "set")) {
+          node = buildDefineAccessor(info.state, node, prop);
+        } else {
+          node = _core.types.callExpression(state.addHelper("defineProperty"), [node, _core.types.toComputedKey(prop), getValue(prop)]);
+        }
+      }
+      if (single) return node;
+      body.push(_core.types.expressionStatement(node));
+    }
+  }
+  return {
+    name: "transform-computed-properties",
+    visitor: {
+      ObjectExpression: {
+        exit(path, state) {
+          const {
+            node,
+            parent,
+            scope
+          } = path;
+          let hasComputed = false;
+          for (const prop of node.properties) {
+            hasComputed = prop.computed === true;
+            if (hasComputed) break;
+          }
+          if (!hasComputed) return;
+          const initProps = [];
+          const computedProps = [];
+          let foundComputed = false;
+          for (const prop of node.properties) {
+            if (_core.types.isSpreadElement(prop)) {
+              continue;
+            }
+            if (prop.computed) {
+              foundComputed = true;
+            }
+            if (foundComputed) {
+              computedProps.push(prop);
+            } else {
+              initProps.push(prop);
+            }
+          }
+          const objId = scope.generateUidIdentifierBasedOnNode(parent);
+          const initPropExpression = _core.types.objectExpression(initProps);
+          const body = [];
+          body.push(_core.types.variableDeclaration("var", [_core.types.variableDeclarator(objId, initPropExpression)]));
+          const single = pushComputedProps({
+            scope,
+            objId,
+            body,
+            computedProps,
+            initPropExpression,
+            state
+          });
+          if (single) {
+            path.replaceWith(single);
+          } else {
+            if (setComputedProperties) {
+              body.push(_core.types.expressionStatement(_core.types.cloneNode(objId)));
+            }
+            path.replaceWithMultiple(body);
+          }
+        }
+      }
+    }
+  };
+});
+
+//# sourceMappingURL=index.js.map