@babel/plugin-transform-computed-properties - npm Package Compare versions

Comparing version 8.0.0-rc.2 to 8.0.0-rc.3

lib/index.js

@@ -5,3 +5,3 @@ import { types } from '@babel/core';
 var index = declare((api, options) => {
-  api.assertVersion("^7.0.0-0 || ^8.0.0 || 8.0.0-rc.2");
+  api.assertVersion("^7.0.0-0 || ^8.0.0 || 8.0.0-rc.3");
   const setComputedProperties = api.assumption("setComputedProperties") ?? options.loose;
@@ -113,3 +113,2 @@ const pushComputedProps = setComputedProperties ? pushComputedPropsLoose : pushComputedPropsSpec;
           const single = pushComputedProps({
-            scope,
             objId,
@@ -116,0 +115,0 @@ body,

lib/index.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"index.js","sources":["../src/index.ts"],"sourcesContent":["import { types as t } from \"@babel/core\";\nimport type { PluginPass, Scope } from \"@babel/core\";\nimport { declare } from \"@babel/helper-plugin-utils\";\n\nexport interface Options {\n  loose?: boolean;\n}\n\ntype PropertyInfo = {\n  scope: Scope;\n  objId: t.Identifier;\n  body: t.Statement[];\n  computedProps: t.ObjectMember[];\n  initPropExpression: t.ObjectExpression;\n  state: PluginPass;\n};\n\nexport default declare((api, options: Options) => {\n  api.assertVersion(REQUIRED_VERSION(7));\n\n  const setComputedProperties =\n    api.assumption(\"setComputedProperties\") ?? options.loose;\n\n  const pushComputedProps = setComputedProperties\n    ? pushComputedPropsLoose\n    : pushComputedPropsSpec;\n\n  function buildDefineAccessor(\n    state: PluginPass,\n    obj: t.Expression,\n    prop: t.ObjectMethod,\n  ) {\n    const type = prop.kind as \"get\" | \"set\";\n    const key =\n      !prop.computed && t.isIdentifier(prop.key)\n        ? t.stringLiteral(prop.key.name)\n        : prop.key;\n    const fn = getValue(prop);\n\n    return t.callExpression(state.addHelper(\"defineAccessor\"), [\n      t.stringLiteral(type),\n      obj,\n      key,\n      fn,\n    ]);\n  }\n\n  /**\n   * Get value of an object member under object expression.\n   * Returns a function expression if prop is a ObjectMethod.\n   *\n   * @param {t.ObjectMember} prop\n   * @returns t.Expression\n   */\n  function getValue(prop: t.ObjectMember) {\n    if (t.isObjectProperty(prop)) {\n      return prop.value as t.Expression;\n    } else if (t.isObjectMethod(prop)) {\n      return t.functionExpression(\n        null,\n        prop.params,\n        prop.body,\n        prop.generator,\n        prop.async,\n      );\n    }\n  }\n\n  function pushAssign(\n    objId: t.Identifier,\n    prop: t.ObjectMember,\n    body: t.Statement[],\n  ) {\n    body.push(\n      t.expressionStatement(\n        t.assignmentExpression(\n          \"=\",\n          t.memberExpression(\n            t.cloneNode(objId),\n            prop.key,\n            prop.computed || t.isLiteral(prop.key),\n          ),\n          getValue(prop),\n        ),\n      ),\n    );\n  }\n\n  function pushComputedPropsLoose(info: PropertyInfo) {\n    const { computedProps, state, initPropExpression, objId, body } = info;\n\n    for (const prop of computedProps) {\n      if (\n        t.isObjectMethod(prop) &&\n        (prop.kind === \"get\" || prop.kind === \"set\")\n      ) {\n        if (computedProps.length === 1) {\n          return buildDefineAccessor(state, initPropExpression, prop);\n        } else {\n          body.push(\n            t.expressionStatement(\n              buildDefineAccessor(state, t.cloneNode(objId), prop),\n            ),\n          );\n        }\n      } else {\n        pushAssign(t.cloneNode(objId), prop, body);\n      }\n    }\n  }\n\n  function pushComputedPropsSpec(info: PropertyInfo) {\n    const { objId, body, computedProps, state } = info;\n\n    // To prevent too deep AST structures in case of large objects\n    const CHUNK_LENGTH_CAP = 10;\n\n    let currentChunk: t.ObjectMember[] = null;\n    const computedPropsChunks: t.ObjectMember[][] = [];\n    for (const prop of computedProps) {\n      if (!currentChunk || currentChunk.length === CHUNK_LENGTH_CAP) {\n        currentChunk = [];\n        computedPropsChunks.push(currentChunk);\n      }\n      currentChunk.push(prop);\n    }\n\n    for (const chunk of computedPropsChunks) {\n      const single = computedPropsChunks.length === 1;\n      let node: t.Expression = single\n        ? info.initPropExpression\n        : t.cloneNode(objId);\n      for (const prop of chunk) {\n        if (\n          t.isObjectMethod(prop) &&\n          (prop.kind === \"get\" || prop.kind === \"set\")\n        ) {\n          node = buildDefineAccessor(info.state, node, prop);\n        } else {\n          node = t.callExpression(state.addHelper(\"defineProperty\"), [\n            node,\n            // PrivateName must not be in ObjectExpression\n            t.toComputedKey(prop) as t.Expression,\n            // the value of ObjectProperty in ObjectExpression must be an expression\n            getValue(prop),\n          ]);\n        }\n      }\n      if (single) return node;\n      body.push(t.expressionStatement(node));\n    }\n  }\n\n  return {\n    name: \"transform-computed-properties\",\n\n    visitor: {\n      ObjectExpression: {\n        exit(path, state) {\n          const { node, parent, scope } = path;\n          let hasComputed = false;\n          for (const prop of node.properties) {\n            // @ts-expect-error SpreadElement must not have computed property\n            hasComputed = prop.computed === true;\n            if (hasComputed) break;\n          }\n          if (!hasComputed) return;\n\n          // put all getters/setters into the first object expression as well as all initialisers up\n          // to the first computed property\n\n          const initProps: t.ObjectMember[] = [];\n          const computedProps: t.ObjectMember[] = [];\n          let foundComputed = false;\n\n          for (const prop of node.properties) {\n            if (t.isSpreadElement(prop)) {\n              continue;\n            }\n            if (prop.computed) {\n              foundComputed = true;\n            }\n\n            if (foundComputed) {\n              computedProps.push(prop);\n            } else {\n              initProps.push(prop);\n            }\n          }\n\n          const objId = scope.generateUidIdentifierBasedOnNode(parent);\n          const initPropExpression = t.objectExpression(initProps);\n          const body = [];\n\n          body.push(\n            t.variableDeclaration(\"var\", [\n              t.variableDeclarator(objId, initPropExpression),\n            ]),\n          );\n\n          const single = pushComputedProps({\n            scope,\n            objId,\n            body,\n            computedProps,\n            initPropExpression,\n            state,\n          });\n\n          if (single) {\n            path.replaceWith(single);\n          } else {\n            if (setComputedProperties) {\n              body.push(t.expressionStatement(t.cloneNode(objId)));\n            }\n            path.replaceWithMultiple(body);\n          }\n        },\n      },\n    },\n  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+{"version":3,"file":"index.js","sources":["../src/index.ts"],"sourcesContent":["import { types as t } from \"@babel/core\";\nimport type { PluginPass, Scope } from \"@babel/core\";\nimport { declare } from \"@babel/helper-plugin-utils\";\n\nexport interface Options {\n  loose?: boolean;\n}\n\ntype PropertyInfo = {\n  scope: Scope;\n  objId: t.Identifier;\n  body: t.Statement[];\n  computedProps: t.ObjectMember[];\n  initPropExpression: t.ObjectExpression;\n  state: PluginPass;\n};\n\nexport default declare((api, options: Options) => {\n  api.assertVersion(REQUIRED_VERSION(7));\n\n  const setComputedProperties =\n    api.assumption(\"setComputedProperties\") ?? options.loose;\n\n  const pushComputedProps = setComputedProperties\n    ? pushComputedPropsLoose\n    : pushComputedPropsSpec;\n\n  function buildDefineAccessor(\n    state: PluginPass,\n    obj: t.Expression,\n    prop: t.ObjectMethod,\n  ) {\n    const type = prop.kind as \"get\" | \"set\";\n    const key =\n      !prop.computed && t.isIdentifier(prop.key)\n        ? t.stringLiteral(prop.key.name)\n        : prop.key;\n    const fn = getValue(prop)!;\n\n    return t.callExpression(state.addHelper(\"defineAccessor\"), [\n      t.stringLiteral(type),\n      obj,\n      key,\n      fn,\n    ]);\n  }\n\n  /**\n   * Get value of an object member under object expression.\n   * Returns a function expression if prop is a ObjectMethod.\n   *\n   * @param {t.ObjectMember} prop\n   * @returns t.Expression\n   */\n  function getValue(prop: t.ObjectMember) {\n    if (t.isObjectProperty(prop)) {\n      return prop.value as t.Expression;\n    } else if (t.isObjectMethod(prop)) {\n      return t.functionExpression(\n        null,\n        prop.params,\n        prop.body,\n        prop.generator,\n        prop.async,\n      );\n    }\n  }\n\n  function pushAssign(\n    objId: t.Identifier,\n    prop: t.ObjectMember,\n    body: t.Statement[],\n  ) {\n    body.push(\n      t.expressionStatement(\n        t.assignmentExpression(\n          \"=\",\n          t.memberExpression(\n            t.cloneNode(objId),\n            prop.key,\n            prop.computed || t.isLiteral(prop.key),\n          ),\n          getValue(prop)!,\n        ),\n      ),\n    );\n  }\n\n  function pushComputedPropsLoose(info: PropertyInfo) {\n    const { computedProps, state, initPropExpression, objId, body } = info;\n\n    for (const prop of computedProps) {\n      if (\n        t.isObjectMethod(prop) &&\n        (prop.kind === \"get\" || prop.kind === \"set\")\n      ) {\n        if (computedProps.length === 1) {\n          return buildDefineAccessor(state, initPropExpression, prop);\n        } else {\n          body.push(\n            t.expressionStatement(\n              buildDefineAccessor(state, t.cloneNode(objId), prop),\n            ),\n          );\n        }\n      } else {\n        pushAssign(t.cloneNode(objId), prop, body);\n      }\n    }\n  }\n\n  function pushComputedPropsSpec(info: PropertyInfo) {\n    const { objId, body, computedProps, state } = info;\n\n    // To prevent too deep AST structures in case of large objects\n    const CHUNK_LENGTH_CAP = 10;\n\n    let currentChunk: t.ObjectMember[] | null = null;\n    const computedPropsChunks: t.ObjectMember[][] = [];\n    for (const prop of computedProps) {\n      if (!currentChunk || currentChunk.length === CHUNK_LENGTH_CAP) {\n        currentChunk = [];\n        computedPropsChunks.push(currentChunk);\n      }\n      currentChunk.push(prop);\n    }\n\n    for (const chunk of computedPropsChunks) {\n      const single = computedPropsChunks.length === 1;\n      let node: t.Expression = single\n        ? info.initPropExpression\n        : t.cloneNode(objId);\n      for (const prop of chunk) {\n        if (\n          t.isObjectMethod(prop) &&\n          (prop.kind === \"get\" || prop.kind === \"set\")\n        ) {\n          node = buildDefineAccessor(info.state, node, prop);\n        } else {\n          node = t.callExpression(state.addHelper(\"defineProperty\"), [\n            node,\n            // PrivateName must not be in ObjectExpression\n            t.toComputedKey(prop) as t.Expression,\n            // the value of ObjectProperty in ObjectExpression must be an expression\n            getValue(prop)!,\n          ]);\n        }\n      }\n      if (single) return node;\n      body.push(t.expressionStatement(node));\n    }\n  }\n\n  return {\n    name: \"transform-computed-properties\",\n\n    visitor: {\n      ObjectExpression: {\n        exit(path, state) {\n          const { node, parent, scope } = path;\n          let hasComputed = false;\n          for (const prop of node.properties) {\n            // @ts-expect-error SpreadElement must not have computed property\n            hasComputed = prop.computed === true;\n            if (hasComputed) break;\n          }\n          if (!hasComputed) return;\n\n          // put all getters/setters into the first object expression as well as 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scope,\n            objId,\n            body,\n            computedProps,\n            initPropExpression,\n            state,\n          });\n\n          if (single) {\n            path.replaceWith(single);\n          } else {\n            if (setComputedProperties) {\n              body.push(t.expressionStatement(t.cloneNode(objId)));\n            }\n            path.replaceWithMultiple(body);\n          }\n        },\n      },\n    },\n  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package.json

 {
   "name": "@babel/plugin-transform-computed-properties",
-  "version": "8.0.0-rc.2",
+  "version": "8.0.0-rc.3",
   "description": "Compile ES2015 computed properties to ES5",
@@ -20,10 +20,10 @@ "repository": {
   "dependencies": {
-    "@babel/helper-plugin-utils": "^8.0.0-rc.2"
+    "@babel/helper-plugin-utils": "^8.0.0-rc.3"
   },
   "peerDependencies": {
-    "@babel/core": "^8.0.0-rc.2"
+    "@babel/core": "^8.0.0-rc.3"
   },
   "devDependencies": {
-    "@babel/core": "^8.0.0-rc.2",
-    "@babel/helper-plugin-test-runner": "^8.0.0-rc.2"
+    "@babel/core": "^8.0.0-rc.3",
+    "@babel/helper-plugin-test-runner": "^8.0.0-rc.3"
   },
@@ -30,0 +30,0 @@ "engines": {

No alert changes

Worsened metrics

Total package byte prevSize

19952

-1.31%

Lines of code

138

-0.72%

Dependency changes

• Updated

  @babel/helper-plugin-utils@^8.0.0-rc.3