replace the horrible error system with multiple returns

examples/chip8.zr

@@ -290,7 +290,9 @@ func main[argc: i64, argv: ptr] : i64
     
     c := chip8_create()
 
-    buffer : Blob = must(io.read_binary_file?(path))
+    ~buffer, ok := io.read_binary_file(path)
+    if !ok
+        panic("failed to read file")
 
     for i in 0..buffer->size
         c->memory[0x200 + i] = buffer->data[i]

examples/curl.zr

@@ -26,9 +26,13 @@ func main[argc: i64, argv: ptr] : i64
     if i < url_len
         path = str.substr(url, i, url_len - i)
     
-    addr : i64 = must(net.resolve?(host))
+    ~addr, ok := net.resolve(host)
+    if !ok
+        panic("failed to resolve host")
 
-    s : i64 = must(net.connect?(addr, 80))
+    ~s, ok := net.connect(addr, 80)
+    if !ok
+        panic("failed to connect")
 
     // TODO: add string builder to std
     req := "GET "

examples/puzzles/aoc2024_01.zr

@@ -15,7 +15,11 @@ func part2[l1: Array, l2: Array] : void
     io.println_i64(out)
 
 func main[] : i64
-    lines : Array = must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
 
     l1 := []
     l2 := []

examples/puzzles/aoc2024_02.zr

@@ -40,7 +40,11 @@ func part2[data: Array] : void
     io.println_i64(out)
 
 func main[] : i64
-    lines := must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
 
     data := []
     for i in 0..lines->size

examples/puzzles/aoc2024_04.zr

@@ -56,7 +56,11 @@ func part2[lines: Array] : void
     io.println_i64(out)
 
 func main[] : i64
-    lines : Array = must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
 
     part1(lines)
     part2(lines)

examples/puzzles/aoc2024_05.zr

@@ -47,7 +47,11 @@ func part2[updates: Array, rules_left: Array, rules_right: Array] : void
     io.println_i64(out)
 
 func main[] : i64
-    data := must(io.read_text_file?("input.txt")) |> str.split("\n\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    data := str.split(input, "\n\n")
 
     rules_left := []
     rules_right := []

examples/puzzles/aoc2024_07.zr

@@ -61,7 +61,11 @@ func part2[equations: Array] : void
     io.println_i64(out)
 
 func main[] : i64
-    lines := must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
     equations := []
 
     for i in 0..lines->size

examples/puzzles/aoc2025_01.zr

@@ -47,7 +47,11 @@ func part2[lines: Array] : void
     io.println_i64(password)
 
 func main[] : i64
-    lines := must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
 
     part1(lines)
     part2(lines)

examples/puzzles/aoc2025_02.zr

@@ -54,7 +54,11 @@ func part2[ranges: Array] : void
     io.println_i64(sum)
 
 func main[] : i64
-    ranges := must(io.read_text_file?("input.txt")) |> str.split(",")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    ranges := str.split(input, ",")
 
     part1(ranges)
     part2(ranges)

examples/puzzles/aoc2025_03.zr

@@ -45,7 +45,11 @@ func part2[lines: Array] : void
     io.println_i64(sum)
 
 func main[] : i64
-    lines := must(io.read_text_file?("input.txt")) |> str.split("\n")
+    ~input, ok := io.read_text_file("input.txt")
+    if !ok
+        panic("failed to open input.txt")
+    
+    lines := str.split(input, "\n")
 
     part1(lines)
     part2(lines)

examples/tcp_server.zr

@@ -1,5 +1,7 @@
 func main[] : i64
-    s : i64 = must(net.listen?(net.pack_addr(127, 0, 0, 1), 8000))
+    ~s, ok := net.listen(net.pack_addr(127, 0, 0, 1), 8000)
+    if !ok
+        panic("failed to listen")
 
     io.println("Listening on port 8000...")
 

examples/udp_server.zr

@@ -1,5 +1,7 @@
 func main[] : i64
-    s : net.UDPSocket = must(net.create_udp_server?(net.pack_addr(127, 0, 0, 1), 8000))
+    ~s, ok := net.create_udp_server(net.pack_addr(127, 0, 0, 1), 8000)
+    if !ok
+        panic("net.create_udp_server failed")
 
     io.println("Listening on port 8000...")
     while true