328 lines
15 KiB
JavaScript
328 lines
15 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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0 && (module.exports = {
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EXPORT_NAME_GET_STATIC_PROPS: null,
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EXPORT_NAME_GET_STATIC_PATHS: null,
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EXPORT_NAME_GET_SERVER_PROPS: null,
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default: null
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});
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function _export(target, all) {
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for(var name in all)Object.defineProperty(target, name, {
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enumerable: true,
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get: all[name]
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});
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}
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_export(exports, {
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EXPORT_NAME_GET_STATIC_PROPS: function() {
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return EXPORT_NAME_GET_STATIC_PROPS;
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},
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EXPORT_NAME_GET_STATIC_PATHS: function() {
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return EXPORT_NAME_GET_STATIC_PATHS;
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},
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EXPORT_NAME_GET_SERVER_PROPS: function() {
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return EXPORT_NAME_GET_SERVER_PROPS;
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},
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default: function() {
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return nextTransformSsg;
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}
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});
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const _constants = require("../../../lib/constants");
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const _constants1 = require("../../../shared/lib/constants");
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const EXPORT_NAME_GET_STATIC_PROPS = "getStaticProps";
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const EXPORT_NAME_GET_STATIC_PATHS = "getStaticPaths";
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const EXPORT_NAME_GET_SERVER_PROPS = "getServerSideProps";
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const ssgExports = new Set([
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EXPORT_NAME_GET_STATIC_PROPS,
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EXPORT_NAME_GET_STATIC_PATHS,
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EXPORT_NAME_GET_SERVER_PROPS,
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// legacy methods added so build doesn't fail from importing
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// server-side only methods
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`unstable_getStaticProps`,
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`unstable_getStaticPaths`,
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`unstable_getServerProps`,
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`unstable_getServerSideProps`
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]);
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function decorateSsgExport(t, path, state) {
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const gsspName = state.isPrerender ? _constants1.STATIC_PROPS_ID : _constants1.SERVER_PROPS_ID;
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const gsspId = t.identifier(gsspName);
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const addGsspExport = (exportPath)=>{
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if (state.done) {
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return;
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}
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state.done = true;
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const [pageCompPath] = exportPath.replaceWithMultiple([
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t.exportNamedDeclaration(t.variableDeclaration(// We use 'var' instead of 'let' or 'const' for ES5 support. Since
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// this runs in `Program#exit`, no ES2015 transforms (preset env)
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// will be ran against this code.
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"var", [
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t.variableDeclarator(gsspId, t.booleanLiteral(true))
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]), [
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t.exportSpecifier(gsspId, gsspId)
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]),
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exportPath.node
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]);
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exportPath.scope.registerDeclaration(pageCompPath);
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};
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path.traverse({
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ExportDefaultDeclaration (exportDefaultPath) {
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addGsspExport(exportDefaultPath);
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},
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ExportNamedDeclaration (exportNamedPath) {
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addGsspExport(exportNamedPath);
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}
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});
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}
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const isDataIdentifier = (name, state)=>{
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if (ssgExports.has(name)) {
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if (name === EXPORT_NAME_GET_SERVER_PROPS) {
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if (state.isPrerender) {
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throw new Error(_constants.SERVER_PROPS_SSG_CONFLICT);
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}
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state.isServerProps = true;
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} else {
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if (state.isServerProps) {
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throw new Error(_constants.SERVER_PROPS_SSG_CONFLICT);
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}
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state.isPrerender = true;
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}
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return true;
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}
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return false;
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};
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function nextTransformSsg({ types: t }) {
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function getIdentifier(path) {
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const parentPath = path.parentPath;
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if (parentPath.type === "VariableDeclarator") {
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const pp = parentPath;
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const name = pp.get("id");
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return name.node.type === "Identifier" ? name : null;
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}
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if (parentPath.type === "AssignmentExpression") {
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const pp = parentPath;
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const name = pp.get("left");
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return name.node.type === "Identifier" ? name : null;
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}
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if (path.node.type === "ArrowFunctionExpression") {
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return null;
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}
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return path.node.id && path.node.id.type === "Identifier" ? path.get("id") : null;
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}
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function isIdentifierReferenced(ident) {
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const b = ident.scope.getBinding(ident.node.name);
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if (b == null ? void 0 : b.referenced) {
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// Functions can reference themselves, so we need to check if there's a
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// binding outside the function scope or not.
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if (b.path.type === "FunctionDeclaration") {
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return !b.constantViolations.concat(b.referencePaths)// Check that every reference is contained within the function:
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.every((ref)=>ref.findParent((p)=>p === b.path));
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}
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return true;
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}
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return false;
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}
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function markFunction(path, state) {
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const ident = getIdentifier(path);
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if ((ident == null ? void 0 : ident.node) && isIdentifierReferenced(ident)) {
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state.refs.add(ident);
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}
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}
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function markImport(path, state) {
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const local = path.get("local");
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if (isIdentifierReferenced(local)) {
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state.refs.add(local);
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}
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}
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return {
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visitor: {
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Program: {
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enter (path, state) {
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state.refs = new Set();
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state.isPrerender = false;
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state.isServerProps = false;
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state.done = false;
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path.traverse({
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VariableDeclarator (variablePath, variableState) {
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if (variablePath.node.id.type === "Identifier") {
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const local = variablePath.get("id");
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if (isIdentifierReferenced(local)) {
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variableState.refs.add(local);
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}
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} else if (variablePath.node.id.type === "ObjectPattern") {
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const pattern = variablePath.get("id");
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const properties = pattern.get("properties");
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properties.forEach((p)=>{
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const local = p.get(p.node.type === "ObjectProperty" ? "value" : p.node.type === "RestElement" ? "argument" : function() {
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throw new Error("invariant");
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}());
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if (isIdentifierReferenced(local)) {
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variableState.refs.add(local);
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}
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});
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} else if (variablePath.node.id.type === "ArrayPattern") {
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const pattern = variablePath.get("id");
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const elements = pattern.get("elements");
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elements.forEach((e)=>{
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var _e_node, _e_node1;
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let local;
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if (((_e_node = e.node) == null ? void 0 : _e_node.type) === "Identifier") {
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local = e;
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} else if (((_e_node1 = e.node) == null ? void 0 : _e_node1.type) === "RestElement") {
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local = e.get("argument");
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} else {
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return;
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}
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if (isIdentifierReferenced(local)) {
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variableState.refs.add(local);
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}
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});
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}
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},
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FunctionDeclaration: markFunction,
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FunctionExpression: markFunction,
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ArrowFunctionExpression: markFunction,
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ImportSpecifier: markImport,
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ImportDefaultSpecifier: markImport,
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ImportNamespaceSpecifier: markImport,
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ExportNamedDeclaration (exportNamedPath, exportNamedState) {
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const specifiers = exportNamedPath.get("specifiers");
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if (specifiers.length) {
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specifiers.forEach((s)=>{
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if (isDataIdentifier(t.isIdentifier(s.node.exported) ? s.node.exported.name : s.node.exported.value, exportNamedState)) {
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s.remove();
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}
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});
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if (exportNamedPath.node.specifiers.length < 1) {
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exportNamedPath.remove();
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}
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return;
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}
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const decl = exportNamedPath.get("declaration");
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if (decl == null || decl.node == null) {
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return;
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}
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switch(decl.node.type){
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case "FunctionDeclaration":
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{
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const name = decl.node.id.name;
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if (isDataIdentifier(name, exportNamedState)) {
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exportNamedPath.remove();
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}
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break;
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}
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case "VariableDeclaration":
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{
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const inner = decl.get("declarations");
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inner.forEach((d)=>{
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if (d.node.id.type !== "Identifier") {
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return;
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}
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const name = d.node.id.name;
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if (isDataIdentifier(name, exportNamedState)) {
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d.remove();
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}
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});
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break;
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}
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default:
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{
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break;
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}
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}
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}
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}, state);
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if (!state.isPrerender && !state.isServerProps) {
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return;
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}
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const refs = state.refs;
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let count;
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function sweepFunction(sweepPath) {
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const ident = getIdentifier(sweepPath);
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if ((ident == null ? void 0 : ident.node) && refs.has(ident) && !isIdentifierReferenced(ident)) {
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++count;
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if (t.isAssignmentExpression(sweepPath.parentPath) || t.isVariableDeclarator(sweepPath.parentPath)) {
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sweepPath.parentPath.remove();
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} else {
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sweepPath.remove();
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}
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}
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}
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function sweepImport(sweepPath) {
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const local = sweepPath.get("local");
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if (refs.has(local) && !isIdentifierReferenced(local)) {
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++count;
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sweepPath.remove();
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if (sweepPath.parent.specifiers.length === 0) {
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sweepPath.parentPath.remove();
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}
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}
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}
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do {
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path.scope.crawl();
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count = 0;
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path.traverse({
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// eslint-disable-next-line no-loop-func
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VariableDeclarator (variablePath) {
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if (variablePath.node.id.type === "Identifier") {
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const local = variablePath.get("id");
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if (refs.has(local) && !isIdentifierReferenced(local)) {
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++count;
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variablePath.remove();
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}
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} else if (variablePath.node.id.type === "ObjectPattern") {
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const pattern = variablePath.get("id");
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const beforeCount = count;
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const properties = pattern.get("properties");
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properties.forEach((p)=>{
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const local = p.get(p.node.type === "ObjectProperty" ? "value" : p.node.type === "RestElement" ? "argument" : function() {
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throw new Error("invariant");
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}());
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if (refs.has(local) && !isIdentifierReferenced(local)) {
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++count;
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p.remove();
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}
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});
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if (beforeCount !== count && pattern.get("properties").length < 1) {
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variablePath.remove();
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}
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} else if (variablePath.node.id.type === "ArrayPattern") {
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const pattern = variablePath.get("id");
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const beforeCount = count;
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const elements = pattern.get("elements");
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elements.forEach((e)=>{
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var _e_node, _e_node1;
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let local;
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if (((_e_node = e.node) == null ? void 0 : _e_node.type) === "Identifier") {
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local = e;
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} else if (((_e_node1 = e.node) == null ? void 0 : _e_node1.type) === "RestElement") {
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local = e.get("argument");
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} else {
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return;
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}
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if (refs.has(local) && !isIdentifierReferenced(local)) {
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++count;
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e.remove();
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}
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});
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if (beforeCount !== count && pattern.get("elements").length < 1) {
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variablePath.remove();
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}
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}
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},
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FunctionDeclaration: sweepFunction,
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FunctionExpression: sweepFunction,
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ArrowFunctionExpression: sweepFunction,
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ImportSpecifier: sweepImport,
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ImportDefaultSpecifier: sweepImport,
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ImportNamespaceSpecifier: sweepImport
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});
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}while (count);
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decorateSsgExport(t, path, state);
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}
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}
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}
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};
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}
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//# sourceMappingURL=next-ssg-transform.js.map
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