first commit

node_modules/acorn-import-meta/index.js

@@ -0,0 +1,47 @@
+"use strict"
+
+const tt = require("acorn").tokTypes
+
+const skipWhiteSpace = /(?:\s|\/\/.*|\/\*[^]*?\*\/)*/g
+
+const nextTokenIsDot = parser => {
+  skipWhiteSpace.lastIndex = parser.pos
+  let skip = skipWhiteSpace.exec(parser.input)
+  let next = parser.pos + skip[0].length
+  return parser.input.slice(next, next + 1) === "."
+}
+
+module.exports = function(Parser) {
+  return class extends Parser {
+    parseExprAtom(refDestructuringErrors) {
+      if (this.type !== tt._import || !nextTokenIsDot(this)) return super.parseExprAtom(refDestructuringErrors)
+
+      if (!this.options.allowImportExportEverywhere && !this.inModule) {
+        this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'")
+      }
+
+      let node = this.startNode()
+      if (this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword import")
+      node.meta = this.parseIdent(true)
+      this.expect(tt.dot)
+      node.property = this.parseIdent(true)
+      if (node.property.name !== "meta") {
+        this.raiseRecoverable(node.property.start, "The only valid meta property for import is import.meta")
+      }
+      if (this.containsEsc) {
+        this.raiseRecoverable(node.property.start, "\"meta\" in import.meta must not contain escape sequences")
+      }
+      return this.finishNode(node, "MetaProperty")
+    }
+
+    parseStatement(context, topLevel, exports) {
+      if (this.type !== tt._import || !nextTokenIsDot(this)) {
+        return super.parseStatement(context, topLevel, exports)
+      }
+
+      let node = this.startNode()
+      let expr = this.parseExpression()
+      return this.parseExpressionStatement(node, expr)
+    }
+  }
+}