fix: do not crash when failing to read input

teal-language · Aug 19, 2024 · 4dffbe8 · 4dffbe8
1 parent 57f1c61
commit 4dffbe8
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Showing 2 changed files with 8 additions and 0 deletions.
diff --git a/tl.lua b/tl.lua
@@ -12806,6 +12806,10 @@ end
 local function read_full_file(fd)
    local bom = "\239\187\191"
    local content, err = fd:read("*a")
+   if not content then
+      return nil, err
+   end
+
    if content:sub(1, bom:len()) == bom then
       content = content:sub(bom:len() + 1)
    end

diff --git a/tl.tl b/tl.tl
@@ -12806,6 +12806,10 @@ end
 local function read_full_file(fd: FILE): string, string
    local bom <const> = "\239\187\191" -- "\xEF\xBB\xBF"
    local content, err = fd:read("*a")
+   if not content then
+      return nil, err
+   end
+
    if content:sub(1, bom:len()) == bom then
       content = content:sub(bom:len() + 1)
    end