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author Seth Moore <sethmo@google.com> 2021-10-13 15:32:18 -0700
committer Seth Moore <sethmo@google.com> 2021-10-14 15:25:07 +0000
commit3afac0b36fc843e46bdbe43ab6fe57c794f12a5f (patch)
tree04ab424f4d77ec1b0375c48b28e91f5005236192 /rust/compiler.go
parent2649c7913a541c0e0cc64f01a764139f76862241 (diff)
Flag an error on empty rust module srcs
It's an error if a rust module's srcs is empty. Prior to this change the output was a panic that complains loudly about a slice error and nothing else. This change doesn't stop the panic, but at least adds a bit of context so devs who make a simple mistake can more easily fix it. Test: SOONG_GEN_RUST_PROJECT=1 m nothing Change-Id: Id7d8465d533413c3000699661222a53a7c8678f3
Diffstat (limited to 'rust/compiler.go')
-rw-r--r--rust/compiler.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/rust/compiler.go b/rust/compiler.go
index 1ce71f60b..cada9854a 100644
--- a/rust/compiler.go
+++ b/rust/compiler.go
@@ -449,6 +449,10 @@ func (compiler *baseCompiler) relativeInstallPath() string {
// Returns the Path for the main source file along with Paths for generated source files from modules listed in srcs.
func srcPathFromModuleSrcs(ctx ModuleContext, srcs []string) (android.Path, android.Paths) {
+ if len(srcs) == 0 {
+ ctx.PropertyErrorf("srcs", "srcs must not be empty")
+ }
+
// The srcs can contain strings with prefix ":".
// They are dependent modules of this module, with android.SourceDepTag.
// They are not the main source file compiled by rustc.