Fix for crashing range indexes when variable length is 1

2021-04-09 22:51:55 +02:00
parent fd107355c2
commit 7c635975d1
2 changed files with 14 additions and 1 deletions
--- a/Sources/Variable.swift
+++ b/Sources/Variable.swift
@@ -50,6 +50,7 @@ public struct Variable: Equatable, Resolvable {
  public func resolve(_ context: Context) throws -> Any? {
    if (variable.hasPrefix("'") && variable.hasSuffix("'")) || (variable.hasPrefix("\"") && variable.hasSuffix("\"")) {
      // String literal
+      guard variable.count > 1 else { return "" }
      return String(variable[variable.index(after: variable.startIndex) ..< variable.index(before: variable.endIndex)])
    }