From 928ffcfa5edb2f53e3008e95ad2d575821bb1733 Mon Sep 17 00:00:00 2001
From: "Sven A. Schmidt" <sas@finestructure.co>
Date: Tue, 6 Oct 2020 15:28:19 +0200
Subject: [PATCH] Support for Swift 5.3 on Linux (#59)

* Work around for compiler crash
* Add review warning
* Add "&& os(Linux)"
---
 Sources/Ink/API/MarkdownParser.swift | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Sources/Ink/API/MarkdownParser.swift b/Sources/Ink/API/MarkdownParser.swift
index 5049654..7445da7 100644
--- a/Sources/Ink/API/MarkdownParser.swift
+++ b/Sources/Ink/API/MarkdownParser.swift
@@ -67,7 +67,19 @@ public struct MarkdownParser {
                 let type = fragmentType(for: reader.currentCharacter,
                                         nextCharacter: reader.nextCharacter)
 
+                #if swift(>=5.4)
+                #warning("review compiler crash work-around below")
+                #elseif swift(>=5.3) && os(Linux)
+                // inline function call to work around https://bugs.swift.org/browse/SR-13645
+                let fragment: ParsedFragment = try {
+                    let startIndex = reader.currentIndex
+                    let fragment = try type.readOrRewind(using: &reader)
+                    let rawString = reader.characters(in: startIndex..<reader.currentIndex)
+                    return ParsedFragment(fragment: fragment, rawString: rawString)
+                }()
+                #else
                 let fragment = try makeFragment(using: type.readOrRewind, reader: &reader)
+                #endif
                 fragments.append(fragment)
 
                 if titleHeading == nil, let heading = fragment.fragment as? Heading {