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-rw-r--r--node_modules/@babel/template/lib/populate.js135
1 files changed, 135 insertions, 0 deletions
diff --git a/node_modules/@babel/template/lib/populate.js b/node_modules/@babel/template/lib/populate.js
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+++ b/node_modules/@babel/template/lib/populate.js
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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+ value: true
+});
+exports.default = populatePlaceholders;
+
+var _t = require("@babel/types");
+
+const {
+ blockStatement,
+ cloneNode,
+ emptyStatement,
+ expressionStatement,
+ identifier,
+ isStatement,
+ isStringLiteral,
+ stringLiteral,
+ validate
+} = _t;
+
+function populatePlaceholders(metadata, replacements) {
+ const ast = cloneNode(metadata.ast);
+
+ if (replacements) {
+ metadata.placeholders.forEach(placeholder => {
+ if (!Object.prototype.hasOwnProperty.call(replacements, placeholder.name)) {
+ const placeholderName = placeholder.name;
+ throw new Error(`Error: No substitution given for "${placeholderName}". If this is not meant to be a
+ placeholder you may want to consider passing one of the following options to @babel/template:
+ - { placeholderPattern: false, placeholderWhitelist: new Set(['${placeholderName}'])}
+ - { placeholderPattern: /^${placeholderName}$/ }`);
+ }
+ });
+ Object.keys(replacements).forEach(key => {
+ if (!metadata.placeholderNames.has(key)) {
+ throw new Error(`Unknown substitution "${key}" given`);
+ }
+ });
+ }
+
+ metadata.placeholders.slice().reverse().forEach(placeholder => {
+ try {
+ applyReplacement(placeholder, ast, replacements && replacements[placeholder.name] || null);
+ } catch (e) {
+ e.message = `@babel/template placeholder "${placeholder.name}": ${e.message}`;
+ throw e;
+ }
+ });
+ return ast;
+}
+
+function applyReplacement(placeholder, ast, replacement) {
+ if (placeholder.isDuplicate) {
+ if (Array.isArray(replacement)) {
+ replacement = replacement.map(node => cloneNode(node));
+ } else if (typeof replacement === "object") {
+ replacement = cloneNode(replacement);
+ }
+ }
+
+ const {
+ parent,
+ key,
+ index
+ } = placeholder.resolve(ast);
+
+ if (placeholder.type === "string") {
+ if (typeof replacement === "string") {
+ replacement = stringLiteral(replacement);
+ }
+
+ if (!replacement || !isStringLiteral(replacement)) {
+ throw new Error("Expected string substitution");
+ }
+ } else if (placeholder.type === "statement") {
+ if (index === undefined) {
+ if (!replacement) {
+ replacement = emptyStatement();
+ } else if (Array.isArray(replacement)) {
+ replacement = blockStatement(replacement);
+ } else if (typeof replacement === "string") {
+ replacement = expressionStatement(identifier(replacement));
+ } else if (!isStatement(replacement)) {
+ replacement = expressionStatement(replacement);
+ }
+ } else {
+ if (replacement && !Array.isArray(replacement)) {
+ if (typeof replacement === "string") {
+ replacement = identifier(replacement);
+ }
+
+ if (!isStatement(replacement)) {
+ replacement = expressionStatement(replacement);
+ }
+ }
+ }
+ } else if (placeholder.type === "param") {
+ if (typeof replacement === "string") {
+ replacement = identifier(replacement);
+ }
+
+ if (index === undefined) throw new Error("Assertion failure.");
+ } else {
+ if (typeof replacement === "string") {
+ replacement = identifier(replacement);
+ }
+
+ if (Array.isArray(replacement)) {
+ throw new Error("Cannot replace single expression with an array.");
+ }
+ }
+
+ if (index === undefined) {
+ validate(parent, key, replacement);
+ parent[key] = replacement;
+ } else {
+ const items = parent[key].slice();
+
+ if (placeholder.type === "statement" || placeholder.type === "param") {
+ if (replacement == null) {
+ items.splice(index, 1);
+ } else if (Array.isArray(replacement)) {
+ items.splice(index, 1, ...replacement);
+ } else {
+ items[index] = replacement;
+ }
+ } else {
+ items[index] = replacement;
+ }
+
+ validate(parent, key, items);
+ parent[key] = items;
+ }
+} \ No newline at end of file