diff options
| -rw-r--r-- | src/makefile/functions.rs | 14 | ||||
| -rw-r--r-- | src/makefile/macro.rs | 13 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/makefile/functions.rs b/src/makefile/functions.rs index bc244cb..a61a0cf 100644 --- a/src/makefile/functions.rs +++ b/src/makefile/functions.rs @@ -56,6 +56,11 @@ pub fn expand_call(name: &str, args: &[TokenString], macros: &MacroSet) -> Resul // eval "eval" => todo!(), + "origin" => { + assert_eq!(args.len(), 1); + origin::origin(macros, &args[0]) + } + // shell "shell" => todo!(), @@ -260,6 +265,15 @@ mod call { } } +mod origin { + use super::*; + + pub fn origin(macros: &MacroSet, variable: &TokenString) -> Result<String> { + let variable = macros.expand(variable)?; + Ok(macros.origin(&variable).to_owned()) + } +} + #[cfg(test)] mod test { use super::*; diff --git a/src/makefile/macro.rs b/src/makefile/macro.rs index bb4a72d..f788edc 100644 --- a/src/makefile/macro.rs +++ b/src/makefile/macro.rs @@ -124,6 +124,19 @@ impl<'parent, 'lookup> Set<'parent, 'lookup> { Ok(result) } + #[cfg(feature = "full")] + pub fn origin(&self, name: &str) -> &'static str { + match self.data.get(name) { + None => self.parent.map_or("undefined", |p| p.origin(name)), + Some((Source::Builtin, _)) => "default", + Some((Source::Environment, _)) => "environment", + // TODO figure out when to return "environment override" + Some((Source::File, _)) => "file", + Some((Source::CommandLineOrMakeflags, _)) => "command line", + // TODO handle override and automatic + } + } + pub fn with_lookup<'l, 's: 'l>(&'s self, lookup: &'l dyn LookupInternal) -> Set<'s, 'l> { Set { parent: Some(self), |