1 files changed, 25 insertions, 2 deletions

diff --git a/mingling_core/src/lib.rs b/mingling_core/src/lib.rs
index 14559ed..ac6449f 100644
--- a/mingling_core/src/lib.rs
+++ b/mingling_core/src/lib.rs
@@ -102,8 +102,6 @@ pub mod pathf {
     pub use mingling_pathf::pattern_analyzer::*;
     pub use mingling_pathf::patterns::*;
 
-    pub use mingling_pathf::analyze_and_build_type_mapping;
-
     use std::path::Path;
 
     /// Wraps `analyze_and_build_type_mapping_for` with config derived from
@@ -117,4 +115,29 @@ pub mod pathf {
         };
         mingling_pathf::analyze_and_build_type_mapping_for(crate_dir, output_dir, &config)
     }
+
+    /// Wraps `analyze_and_build_type_mapping` (build.rs convenience) with config.
+    pub fn analyze_and_build_type_mapping() -> Result<(), crate::error::MinglingPathfinderError> {
+        let config = mingling_pathf::config::PathfinderConfig {
+            use_dispatch_tree: cfg!(feature = "dispatch_tree"),
+        };
+        let crate_dir =
+            std::env::current_dir().map_err(crate::error::MinglingPathfinderError::IoError)?;
+        let crate_name = std::env::var("CARGO_PKG_NAME").map_err(|_| {
+            crate::error::MinglingPathfinderError::IoError(std::io::Error::new(
+                std::io::ErrorKind::NotFound,
+                "CARGO_PKG_NAME not set",
+            ))
+        })?;
+        let out_dir = std::env::var("OUT_DIR").map_err(|_| {
+            crate::error::MinglingPathfinderError::IoError(std::io::Error::new(
+                std::io::ErrorKind::NotFound,
+                "OUT_DIR not set",
+            ))
+        })?;
+        let output_dir = Path::new(&out_dir).join(&crate_name);
+        mingling_pathf::analyze_and_build_type_mapping_for(&crate_dir, &output_dir, &config)?;
+        println!("cargo:rerun-if-changed=src/");
+        Ok(())
+    }
 }