WIP - add extractor, generate snippet_data

node_modules/babel-eslint/lib/parse.js

@@ -0,0 +1,93 @@
+"use strict";
+
+var babylonToEspree = require("./babylon-to-espree");
+var parse = require("@babel/parser").parse;
+var tt = require("@babel/parser").tokTypes;
+var traverse = require("@babel/traverse").default;
+var codeFrameColumns = require("@babel/code-frame").codeFrameColumns;
+
+module.exports = function(code, options) {
+  const legacyDecorators =
+    options.ecmaFeatures && options.ecmaFeatures.legacyDecorators;
+
+  var opts = {
+    codeFrame: options.hasOwnProperty("codeFrame") ? options.codeFrame : true,
+    sourceType: options.sourceType,
+    allowImportExportEverywhere: options.allowImportExportEverywhere, // consistent with espree
+    allowReturnOutsideFunction: true,
+    allowSuperOutsideMethod: true,
+    ranges: true,
+    tokens: true,
+    plugins: [
+      ["flow", { all: true }],
+      "jsx",
+      "estree",
+      "asyncFunctions",
+      "asyncGenerators",
+      "classConstructorCall",
+      "classProperties",
+      legacyDecorators
+        ? "decorators-legacy"
+        : ["decorators", { decoratorsBeforeExport: false }],
+      "doExpressions",
+      "exponentiationOperator",
+      "exportDefaultFrom",
+      "exportNamespaceFrom",
+      "functionBind",
+      "functionSent",
+      "objectRestSpread",
+      "trailingFunctionCommas",
+      "dynamicImport",
+      "numericSeparator",
+      "optionalChaining",
+      "importMeta",
+      "classPrivateProperties",
+      "bigInt",
+      "optionalCatchBinding",
+      "throwExpressions",
+      ["pipelineOperator", { proposal: "minimal" }],
+      "nullishCoalescingOperator",
+      "logicalAssignment",
+    ],
+  };
+
+  var ast;
+  try {
+    ast = parse(code, opts);
+  } catch (err) {
+    if (err instanceof SyntaxError) {
+      err.lineNumber = err.loc.line;
+      err.column = err.loc.column;
+
+      if (opts.codeFrame) {
+        err.lineNumber = err.loc.line;
+        err.column = err.loc.column + 1;
+
+        // remove trailing "(LINE:COLUMN)" acorn message and add in esprima syntax error message start
+        err.message =
+          "Line " +
+          err.lineNumber +
+          ": " +
+          err.message.replace(/ \((\d+):(\d+)\)$/, "") +
+          // add codeframe
+          "\n\n" +
+          codeFrameColumns(
+            code,
+            {
+              start: {
+                line: err.lineNumber,
+                column: err.column,
+              },
+            },
+            { highlightCode: true }
+          );
+      }
+    }
+
+    throw err;
+  }
+
+  babylonToEspree(ast, traverse, tt, code);
+
+  return ast;
+};