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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:43:05 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 22:18:30 +0800 |
| commit | 89e95b3f143682ed9a006991bacf45c9dcba4818 (patch) | |
| tree | 4f44cf41b828577d583890bdd5a1c31e8491a6ba /node_modules/@babel/traverse/lib/path/conversion.js | |
| parent | aa7f0199255277949790b41c56e8ec97dd4f0da4 (diff) | |
| download | xmake-docs-vuepress.tar.gz xmake-docs-vuepress.zip | |
remove node_modulesvuepress
Diffstat (limited to 'node_modules/@babel/traverse/lib/path/conversion.js')
| -rw-r--r-- | node_modules/@babel/traverse/lib/path/conversion.js | 465 |
1 files changed, 0 insertions, 465 deletions
diff --git a/node_modules/@babel/traverse/lib/path/conversion.js b/node_modules/@babel/traverse/lib/path/conversion.js deleted file mode 100644 index a449ce3f..00000000 --- a/node_modules/@babel/traverse/lib/path/conversion.js +++ /dev/null @@ -1,465 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.toComputedKey = toComputedKey; -exports.ensureBlock = ensureBlock; -exports.arrowFunctionToShadowed = arrowFunctionToShadowed; -exports.unwrapFunctionEnvironment = unwrapFunctionEnvironment; -exports.arrowFunctionToExpression = arrowFunctionToExpression; - -function t() { - const data = _interopRequireWildcard(require("@babel/types")); - - t = function t() { - return data; - }; - - return data; -} - -function _helperFunctionName() { - const data = _interopRequireDefault(require("@babel/helper-function-name")); - - _helperFunctionName = function _helperFunctionName() { - return data; - }; - - return data; -} - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } } - -function toComputedKey() { - const node = this.node; - let key; - - if (this.isMemberExpression()) { - key = node.property; - } else if (this.isProperty() || this.isMethod()) { - key = node.key; - } else { - throw new ReferenceError("todo"); - } - - if (!node.computed) { - if (t().isIdentifier(key)) key = t().stringLiteral(key.name); - } - - return key; -} - -function ensureBlock() { - const body = this.get("body"); - const bodyNode = body.node; - - if (Array.isArray(body)) { - throw new Error("Can't convert array path to a block statement"); - } - - if (!bodyNode) { - throw new Error("Can't convert node without a body"); - } - - if (body.isBlockStatement()) { - return bodyNode; - } - - const statements = []; - let stringPath = "body"; - let key; - let listKey; - - if (body.isStatement()) { - listKey = "body"; - key = 0; - statements.push(body.node); - } else { - stringPath += ".body.0"; - - if (this.isFunction()) { - key = "argument"; - statements.push(t().returnStatement(body.node)); - } else { - key = "expression"; - statements.push(t().expressionStatement(body.node)); - } - } - - this.node.body = t().blockStatement(statements); - const parentPath = this.get(stringPath); - body.setup(parentPath, listKey ? parentPath.node[listKey] : parentPath.node, listKey, key); - return this.node; -} - -function arrowFunctionToShadowed() { - if (!this.isArrowFunctionExpression()) return; - this.arrowFunctionToExpression(); -} - -function unwrapFunctionEnvironment() { - if (!this.isArrowFunctionExpression() && !this.isFunctionExpression() && !this.isFunctionDeclaration()) { - throw this.buildCodeFrameError("Can only unwrap the environment of a function."); - } - - hoistFunctionEnvironment(this); -} - -function arrowFunctionToExpression({ - allowInsertArrow = true, - specCompliant = false -} = {}) { - if (!this.isArrowFunctionExpression()) { - throw this.buildCodeFrameError("Cannot convert non-arrow function to a function expression."); - } - - const thisBinding = hoistFunctionEnvironment(this, specCompliant, allowInsertArrow); - this.ensureBlock(); - this.node.type = "FunctionExpression"; - - if (specCompliant) { - const checkBinding = thisBinding ? null : this.parentPath.scope.generateUidIdentifier("arrowCheckId"); - - if (checkBinding) { - this.parentPath.scope.push({ - id: checkBinding, - init: t().objectExpression([]) - }); - } - - this.get("body").unshiftContainer("body", t().expressionStatement(t().callExpression(this.hub.file.addHelper("newArrowCheck"), [t().thisExpression(), checkBinding ? t().identifier(checkBinding.name) : t().identifier(thisBinding)]))); - this.replaceWith(t().callExpression(t().memberExpression((0, _helperFunctionName().default)(this, true) || this.node, t().identifier("bind")), [checkBinding ? t().identifier(checkBinding.name) : t().thisExpression()])); - } -} - -function hoistFunctionEnvironment(fnPath, specCompliant = false, allowInsertArrow = true) { - const thisEnvFn = fnPath.findParent(p => { - return p.isFunction() && !p.isArrowFunctionExpression() || p.isProgram() || p.isClassProperty({ - static: false - }); - }); - const inConstructor = thisEnvFn && thisEnvFn.node.kind === "constructor"; - - if (thisEnvFn.isClassProperty()) { - throw fnPath.buildCodeFrameError("Unable to transform arrow inside class property"); - } - - const _getScopeInformation = getScopeInformation(fnPath), - thisPaths = _getScopeInformation.thisPaths, - argumentsPaths = _getScopeInformation.argumentsPaths, - newTargetPaths = _getScopeInformation.newTargetPaths, - superProps = _getScopeInformation.superProps, - superCalls = _getScopeInformation.superCalls; - - if (inConstructor && superCalls.length > 0) { - if (!allowInsertArrow) { - throw superCalls[0].buildCodeFrameError("Unable to handle nested super() usage in arrow"); - } - - const allSuperCalls = []; - thisEnvFn.traverse({ - Function(child) { - if (child.isArrowFunctionExpression()) return; - child.skip(); - }, - - ClassProperty(child) { - if (child.node.static) return; - child.skip(); - }, - - CallExpression(child) { - if (!child.get("callee").isSuper()) return; - allSuperCalls.push(child); - } - - }); - const superBinding = getSuperBinding(thisEnvFn); - allSuperCalls.forEach(superCall => { - const callee = t().identifier(superBinding); - callee.loc = superCall.node.callee.loc; - superCall.get("callee").replaceWith(callee); - }); - } - - let thisBinding; - - if (thisPaths.length > 0 || specCompliant) { - thisBinding = getThisBinding(thisEnvFn, inConstructor); - - if (!specCompliant || inConstructor && hasSuperClass(thisEnvFn)) { - thisPaths.forEach(thisChild => { - const thisRef = thisChild.isJSX() ? t().jsxIdentifier(thisBinding) : t().identifier(thisBinding); - thisRef.loc = thisChild.node.loc; - thisChild.replaceWith(thisRef); - }); - if (specCompliant) thisBinding = null; - } - } - - if (argumentsPaths.length > 0) { - const argumentsBinding = getBinding(thisEnvFn, "arguments", () => t().identifier("arguments")); - argumentsPaths.forEach(argumentsChild => { - const argsRef = t().identifier(argumentsBinding); - argsRef.loc = argumentsChild.node.loc; - argumentsChild.replaceWith(argsRef); - }); - } - - if (newTargetPaths.length > 0) { - const newTargetBinding = getBinding(thisEnvFn, "newtarget", () => t().metaProperty(t().identifier("new"), t().identifier("target"))); - newTargetPaths.forEach(targetChild => { - const targetRef = t().identifier(newTargetBinding); - targetRef.loc = targetChild.node.loc; - targetChild.replaceWith(targetRef); - }); - } - - if (superProps.length > 0) { - if (!allowInsertArrow) { - throw superProps[0].buildCodeFrameError("Unable to handle nested super.prop usage"); - } - - const flatSuperProps = superProps.reduce((acc, superProp) => acc.concat(standardizeSuperProperty(superProp)), []); - flatSuperProps.forEach(superProp => { - const key = superProp.node.computed ? "" : superProp.get("property").node.name; - - if (superProp.parentPath.isCallExpression({ - callee: superProp.node - })) { - const superBinding = getSuperPropCallBinding(thisEnvFn, key); - - if (superProp.node.computed) { - const prop = superProp.get("property").node; - superProp.replaceWith(t().identifier(superBinding)); - superProp.parentPath.node.arguments.unshift(prop); - } else { - superProp.replaceWith(t().identifier(superBinding)); - } - } else { - const isAssignment = superProp.parentPath.isAssignmentExpression({ - left: superProp.node - }); - const superBinding = getSuperPropBinding(thisEnvFn, isAssignment, key); - const args = []; - - if (superProp.node.computed) { - args.push(superProp.get("property").node); - } - - if (isAssignment) { - const value = superProp.parentPath.node.right; - args.push(value); - superProp.parentPath.replaceWith(t().callExpression(t().identifier(superBinding), args)); - } else { - superProp.replaceWith(t().callExpression(t().identifier(superBinding), args)); - } - } - }); - } - - return thisBinding; -} - -function standardizeSuperProperty(superProp) { - if (superProp.parentPath.isAssignmentExpression() && superProp.parentPath.node.operator !== "=") { - const assignmentPath = superProp.parentPath; - const op = assignmentPath.node.operator.slice(0, -1); - const value = assignmentPath.node.right; - assignmentPath.node.operator = "="; - - if (superProp.node.computed) { - const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp"); - assignmentPath.get("left").replaceWith(t().memberExpression(superProp.node.object, t().assignmentExpression("=", tmp, superProp.node.property), true)); - assignmentPath.get("right").replaceWith(t().binaryExpression(op, t().memberExpression(superProp.node.object, t().identifier(tmp.name), true), value)); - } else { - assignmentPath.get("left").replaceWith(t().memberExpression(superProp.node.object, superProp.node.property)); - assignmentPath.get("right").replaceWith(t().binaryExpression(op, t().memberExpression(superProp.node.object, t().identifier(superProp.node.property.name)), value)); - } - - return [assignmentPath.get("left"), assignmentPath.get("right").get("left")]; - } else if (superProp.parentPath.isUpdateExpression()) { - const updateExpr = superProp.parentPath; - const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp"); - const computedKey = superProp.node.computed ? superProp.scope.generateDeclaredUidIdentifier("prop") : null; - const parts = [t().assignmentExpression("=", tmp, t().memberExpression(superProp.node.object, computedKey ? t().assignmentExpression("=", computedKey, superProp.node.property) : superProp.node.property, superProp.node.computed)), t().assignmentExpression("=", t().memberExpression(superProp.node.object, computedKey ? t().identifier(computedKey.name) : superProp.node.property, superProp.node.computed), t().binaryExpression("+", t().identifier(tmp.name), t().numericLiteral(1)))]; - - if (!superProp.parentPath.node.prefix) { - parts.push(t().identifier(tmp.name)); - } - - updateExpr.replaceWith(t().sequenceExpression(parts)); - const left = updateExpr.get("expressions.0.right"); - const right = updateExpr.get("expressions.1.left"); - return [left, right]; - } - - return [superProp]; -} - -function hasSuperClass(thisEnvFn) { - return thisEnvFn.isClassMethod() && !!thisEnvFn.parentPath.parentPath.node.superClass; -} - -function getThisBinding(thisEnvFn, inConstructor) { - return getBinding(thisEnvFn, "this", thisBinding => { - if (!inConstructor || !hasSuperClass(thisEnvFn)) return t().thisExpression(); - const supers = new WeakSet(); - thisEnvFn.traverse({ - Function(child) { - if (child.isArrowFunctionExpression()) return; - child.skip(); - }, - - ClassProperty(child) { - if (child.node.static) return; - child.skip(); - }, - - CallExpression(child) { - if (!child.get("callee").isSuper()) return; - if (supers.has(child.node)) return; - supers.add(child.node); - child.replaceWith(t().assignmentExpression("=", t().identifier(thisBinding), child.node)); - } - - }); - }); -} - -function getSuperBinding(thisEnvFn) { - return getBinding(thisEnvFn, "supercall", () => { - const argsBinding = thisEnvFn.scope.generateUidIdentifier("args"); - return t().arrowFunctionExpression([t().restElement(argsBinding)], t().callExpression(t().super(), [t().spreadElement(t().identifier(argsBinding.name))])); - }); -} - -function getSuperPropCallBinding(thisEnvFn, propName) { - return getBinding(thisEnvFn, `superprop_call:${propName || ""}`, () => { - const argsBinding = thisEnvFn.scope.generateUidIdentifier("args"); - const argsList = [t().restElement(argsBinding)]; - let fnBody; - - if (propName) { - fnBody = t().callExpression(t().memberExpression(t().super(), t().identifier(propName)), [t().spreadElement(t().identifier(argsBinding.name))]); - } else { - const method = thisEnvFn.scope.generateUidIdentifier("prop"); - argsList.unshift(method); - fnBody = t().callExpression(t().memberExpression(t().super(), t().identifier(method.name), true), [t().spreadElement(t().identifier(argsBinding.name))]); - } - - return t().arrowFunctionExpression(argsList, fnBody); - }); -} - -function getSuperPropBinding(thisEnvFn, isAssignment, propName) { - const op = isAssignment ? "set" : "get"; - return getBinding(thisEnvFn, `superprop_${op}:${propName || ""}`, () => { - const argsList = []; - let fnBody; - - if (propName) { - fnBody = t().memberExpression(t().super(), t().identifier(propName)); - } else { - const method = thisEnvFn.scope.generateUidIdentifier("prop"); - argsList.unshift(method); - fnBody = t().memberExpression(t().super(), t().identifier(method.name), true); - } - - if (isAssignment) { - const valueIdent = thisEnvFn.scope.generateUidIdentifier("value"); - argsList.push(valueIdent); - fnBody = t().assignmentExpression("=", fnBody, t().identifier(valueIdent.name)); - } - - return t().arrowFunctionExpression(argsList, fnBody); - }); -} - -function getBinding(thisEnvFn, key, init) { - const cacheKey = "binding:" + key; - let data = thisEnvFn.getData(cacheKey); - - if (!data) { - const id = thisEnvFn.scope.generateUidIdentifier(key); - data = id.name; - thisEnvFn.setData(cacheKey, data); - thisEnvFn.scope.push({ - id: id, - init: init(data) - }); - } - - return data; -} - -function getScopeInformation(fnPath) { - const thisPaths = []; - const argumentsPaths = []; - const newTargetPaths = []; - const superProps = []; - const superCalls = []; - fnPath.traverse({ - ClassProperty(child) { - if (child.node.static) return; - child.skip(); - }, - - Function(child) { - if (child.isArrowFunctionExpression()) return; - child.skip(); - }, - - ThisExpression(child) { - thisPaths.push(child); - }, - - JSXIdentifier(child) { - if (child.node.name !== "this") return; - - if (!child.parentPath.isJSXMemberExpression({ - object: child.node - }) && !child.parentPath.isJSXOpeningElement({ - name: child.node - })) { - return; - } - - thisPaths.push(child); - }, - - CallExpression(child) { - if (child.get("callee").isSuper()) superCalls.push(child); - }, - - MemberExpression(child) { - if (child.get("object").isSuper()) superProps.push(child); - }, - - ReferencedIdentifier(child) { - if (child.node.name !== "arguments") return; - argumentsPaths.push(child); - }, - - MetaProperty(child) { - if (!child.get("meta").isIdentifier({ - name: "new" - })) return; - if (!child.get("property").isIdentifier({ - name: "target" - })) return; - newTargetPaths.push(child); - } - - }); - return { - thisPaths, - argumentsPaths, - newTargetPaths, - superProps, - superCalls - }; -}
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