| "use strict"; |
| |
| Object.defineProperty(exports, "__esModule", { |
| value: true |
| }); |
| exports.codeFrameFromAst = codeFrameFromAst; |
| exports.codeFrameFromSource = codeFrameFromSource; |
| |
| var _wastPrinter = require("@webassemblyjs/wast-printer"); |
| |
| function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } |
| |
| var SHOW_LINES_AROUND_POINTER = 5; |
| |
| function repeat(char, nb) { |
| return Array(nb).fill(char).join(""); |
| } // TODO(sven): allow arbitrary ast nodes |
| |
| |
| function codeFrameFromAst(ast, loc) { |
| return codeFrameFromSource((0, _wastPrinter.print)(ast), loc); |
| } |
| |
| function codeFrameFromSource(source, loc) { |
| var start = loc.start, |
| end = loc.end; |
| var length = 1; |
| |
| if (_typeof(end) === "object") { |
| length = end.column - start.column + 1; |
| } |
| |
| return source.split("\n").reduce(function (acc, line, lineNbr) { |
| if (Math.abs(start.line - lineNbr) < SHOW_LINES_AROUND_POINTER) { |
| acc += line + "\n"; |
| } // Add a new line with the pointer padded left |
| |
| |
| if (lineNbr === start.line - 1) { |
| acc += repeat(" ", start.column - 1); |
| acc += repeat("^", length); |
| acc += "\n"; |
| } |
| |
| return acc; |
| }, ""); |
| } |