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Merge "rust: Allow modules to use only generated sources"

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Ivan Lozano 2021-08-13 19:37:04 +00:00 committed by Gerrit Code Review
commit 0ad64f50fd
1 changed files with 12 additions and 2 deletions
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14
rust/compiler.go
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@ -65,7 +65,11 @@ const (
)
type BaseCompilerProperties struct {
// path to the source file that is the main entry point of the program (e.g. main.rs or lib.rs)
// path to the source file that is the main entry point of the program (e.g. main.rs or lib.rs).
// Only a single source file can be defined. Modules which generate source can be included by prefixing
// the module name with ":", for example ":libfoo_bindgen"
//
// If no source file is defined, a single generated source module can be defined to be used as the main source.
Srcs []string `android:"path,arch_variant"`
// name of the lint set that should be used to validate this module.
@ -438,12 +442,18 @@ func srcPathFromModuleSrcs(ctx ModuleContext, srcs []string) (android.Path, andr
srcIndex = i
}
}
if numSrcs != 1 {
if numSrcs > 1 {
ctx.PropertyErrorf("srcs", incorrectSourcesError)
}
// If a main source file is not provided we expect only a single SourceProvider module to be defined
// within srcs, with the expectation that the first source it provides is the entry point.
if srcIndex != 0 {
ctx.PropertyErrorf("srcs", "main source file must be the first in srcs")
} else if numSrcs > 1 {
ctx.PropertyErrorf("srcs", "only a single generated source module can be defined without a main source file.")
}
paths := android.PathsForModuleSrc(ctx, srcs)
return paths[srcIndex], paths[1:]
}