158 lines
3.6 KiB
JavaScript
158 lines
3.6 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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exports.default = parseAndBuildMetadata;
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function t() {
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const data = _interopRequireWildcard(require("@babel/types"));
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t = function () {
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return data;
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};
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return data;
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}
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function _parser() {
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const data = require("@babel/parser");
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_parser = function () {
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return data;
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};
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return data;
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}
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function _codeFrame() {
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const data = require("@babel/code-frame");
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_codeFrame = function () {
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return data;
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};
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return data;
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}
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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; } }
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const PATTERN = /^[_$A-Z0-9]+$/;
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function parseAndBuildMetadata(formatter, code, opts) {
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const ast = parseWithCodeFrame(code, opts.parser);
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const {
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placeholderWhitelist,
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placeholderPattern = PATTERN,
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preserveComments
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} = opts;
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t().removePropertiesDeep(ast, {
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preserveComments
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});
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formatter.validate(ast);
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const placeholders = [];
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const placeholderNames = new Set();
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t().traverse(ast, placeholderVisitorHandler, {
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placeholders,
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placeholderNames,
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placeholderWhitelist,
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placeholderPattern
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});
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return {
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ast,
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placeholders,
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placeholderNames
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};
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}
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function placeholderVisitorHandler(node, ancestors, state) {
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let name;
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if (t().isIdentifier(node) || t().isJSXIdentifier(node)) {
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name = node.name;
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} else if (t().isStringLiteral(node)) {
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name = node.value;
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} else {
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return;
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}
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if ((!state.placeholderPattern || !state.placeholderPattern.test(name)) && (!state.placeholderWhitelist || !state.placeholderWhitelist.has(name))) {
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return;
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}
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ancestors = ancestors.slice();
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const {
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node: parent,
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key
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} = ancestors[ancestors.length - 1];
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let type;
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if (t().isStringLiteral(node)) {
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type = "string";
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} else if (t().isNewExpression(parent) && key === "arguments" || t().isCallExpression(parent) && key === "arguments" || t().isFunction(parent) && key === "params") {
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type = "param";
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} else if (t().isExpressionStatement(parent)) {
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type = "statement";
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ancestors = ancestors.slice(0, -1);
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} else {
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type = "other";
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}
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state.placeholders.push({
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name,
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type,
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resolve: ast => resolveAncestors(ast, ancestors),
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isDuplicate: state.placeholderNames.has(name)
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});
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state.placeholderNames.add(name);
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}
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function resolveAncestors(ast, ancestors) {
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let parent = ast;
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for (let i = 0; i < ancestors.length - 1; i++) {
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const {
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key,
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index
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} = ancestors[i];
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if (index === undefined) {
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parent = parent[key];
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} else {
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parent = parent[key][index];
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}
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}
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const {
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key,
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index
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} = ancestors[ancestors.length - 1];
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return {
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parent,
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key,
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index
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};
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}
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function parseWithCodeFrame(code, parserOpts) {
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parserOpts = Object.assign({
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allowReturnOutsideFunction: true,
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allowSuperOutsideMethod: true,
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sourceType: "module"
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}, parserOpts);
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try {
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return (0, _parser().parse)(code, parserOpts);
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} catch (err) {
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const loc = err.loc;
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if (loc) {
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err.message += "\n" + (0, _codeFrame().codeFrameColumns)(code, {
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start: loc
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});
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err.code = "BABEL_TEMPLATE_PARSE_ERROR";
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}
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throw err;
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}
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} |