Method parse

modules/pm2-io-agent/src/Utility.js:137–186

(stack)

  }

  parse (stack) {
    if (!stack || stack.length === 0) return false

    for (var i = 0, len = stack.length; i < len; i++) {
      var callsite = stack[i]

      // avoid null values
      if (typeof callsite !== 'object') continue
      if (!callsite.file_name || !callsite.line_number) continue

      var type = this.isAbsolute(callsite.file_name) || callsite.file_name[0] === '.' ? 'user' : 'core'

      // only use the callsite if its inside user space
      if (!callsite || type === 'core' || callsite.file_name.indexOf('node_modules') > -1 ||
          callsite.file_name.indexOf('vxx') > -1) {
        continue
      }

      // get the whole context (all lines) and cache them if necessary
      var context = this._cache.get(callsite.file_name)
      var source = []
      if (context && context.length > 0) {
        // get line before the call
        var preLine = callsite.line_number - this._context_size - 1
        var pre = context.slice(preLine > 0 ? preLine : 0, callsite.line_number - 1)
        if (pre && pre.length > 0) {
          pre.forEach(function (line) {
            source.push(line.replace(/\t/g, '  '))
          })
        }
        // get the line where the call has been made
        if (context[callsite.line_number - 1]) {
          source.push(context[callsite.line_number - 1].replace(/\t/g, '  ').replace('  ', '>>'))
        }
        // and get the line after the call
        var postLine = callsite.line_number + this._context_size
        var post = context.slice(callsite.line_number, postLine)
        if (post && post.length > 0) {
          post.forEach(function (line) {
            source.push(line.replace(/\t/g, '  '))
          })
        }
      }
      return {
        context: source.length > 0 ? source.join('\n') : 'cannot retrieve source context',
        callsite: [ callsite.file_name, callsite.line_number ].join(':')
      }
    }
    return false
  }

  attachContext (error) {
    if (!error) return error