From c8bbc8cb2b31ae71ed67f6bffda7713e922c3001 Mon Sep 17 00:00:00 2001
From: Eduard Urbach <eduard@urbach.dev>
Date: Fri, 15 May 2026 17:05:04 +0200
Subject: [PATCH] Added constants for the exit codes

---
 src/cli/asm.go     |  2 +-
 src/cli/build.go   |  2 +-
 src/cli/exit.go    | 13 ++++++++++---
 src/cli/files.go   |  2 +-
 src/cli/help.go    |  2 +-
 src/cli/invalid.go |  2 +-
 src/cli/run.go     |  7 +------
 src/cli/ssa.go     |  2 +-
 src/cli/version.go |  2 +-
 9 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/src/cli/asm.go b/src/cli/asm.go
index d3a42cb..02eb757 100644
--- a/src/cli/asm.go
+++ b/src/cli/asm.go
@@ -20,5 +20,5 @@ func asm(args []string) int {
 	}
 
 	verbose.ASM(env.Init)
-	return 0
+	return success
 }
\ No newline at end of file
diff --git a/src/cli/build.go b/src/cli/build.go
index 5435b09..f7960ba 100644
--- a/src/cli/build.go
+++ b/src/cli/build.go
@@ -20,7 +20,7 @@ func build(args []string) int {
 	}
 
 	if b.Dry {
-		return 0
+		return success
 	}
 
 	err = linker.WriteFile(b.Executable(), env)
diff --git a/src/cli/exit.go b/src/cli/exit.go
index 896c5a0..3f0ea0f 100644
--- a/src/cli/exit.go
+++ b/src/cli/exit.go
@@ -12,10 +12,17 @@ import (
 	"git.urbach.dev/go/color/ansi"
 )
 
+// Exit codes.
+const (
+	success = iota
+	fail
+	invalidArgs
+)
+
 // exit returns the exit code depending on the error type.
 func exit(err error) int {
 	if err == nil {
-		return 0
+		return success
 	}
 
 	var (
@@ -55,8 +62,8 @@ func exit(err error) int {
 	}
 
 	if errors.As(err, &expectedParameter) || errors.As(err, &unknownParameter) || errors.As(err, &invalidValue) {
-		return 2
+		return invalidArgs
 	}
 
-	return 1
+	return fail
 }
\ No newline at end of file
diff --git a/src/cli/files.go b/src/cli/files.go
index 60d03e8..36402a9 100644
--- a/src/cli/files.go
+++ b/src/cli/files.go
@@ -20,5 +20,5 @@ func files(args []string) int {
 	}
 
 	verbose.Files(env.Files)
-	return 0
+	return success
 }
\ No newline at end of file
diff --git a/src/cli/help.go b/src/cli/help.go
index 4d91452..7bee735 100644
--- a/src/cli/help.go
+++ b/src/cli/help.go
@@ -10,5 +10,5 @@ var helpText string
 // help shows the command line argument usage.
 func help() int {
 	show(helpText)
-	return 0
+	return success
 }
\ No newline at end of file
diff --git a/src/cli/invalid.go b/src/cli/invalid.go
index 8bde289..12a1726 100644
--- a/src/cli/invalid.go
+++ b/src/cli/invalid.go
@@ -10,5 +10,5 @@ import (
 func invalid() int {
 	color.Redirect(os.Stderr)
 	help()
-	return 2
+	return invalidArgs
 }
\ No newline at end of file
diff --git a/src/cli/run.go b/src/cli/run.go
index f60dbf5..1237c86 100644
--- a/src/cli/run.go
+++ b/src/cli/run.go
@@ -28,10 +28,5 @@ func run(args []string) int {
 
 	linker.Write(file, env)
 	err = memfile.Exec(file)
-
-	if err != nil {
-		return exit(err)
-	}
-
-	return 0
+	return exit(err)
 }
\ No newline at end of file
diff --git a/src/cli/ssa.go b/src/cli/ssa.go
index cc8f0e3..6fd5637 100644
--- a/src/cli/ssa.go
+++ b/src/cli/ssa.go
@@ -20,5 +20,5 @@ func ssa(args []string) int {
 	}
 
 	verbose.SSA(env.Init)
-	return 0
+	return success
 }
\ No newline at end of file
diff --git a/src/cli/version.go b/src/cli/version.go
index 25accc5..a376088 100644
--- a/src/cli/version.go
+++ b/src/cli/version.go
@@ -10,5 +10,5 @@ var versionText string
 // version shows the commit date and hash.
 func version() int {
 	show(versionText)
-	return 0
+	return success
 }
\ No newline at end of file
-- 
2.51.2