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Diffstat (limited to 'tvix/eval/src/compiler')
| -rw-r--r-- | tvix/eval/src/compiler/mod.rs | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tvix/eval/src/compiler/mod.rs b/tvix/eval/src/compiler/mod.rs index 2ae010ada6ed..e3cb15032a14 100644 --- a/tvix/eval/src/compiler/mod.rs +++ b/tvix/eval/src/compiler/mod.rs @@ -1256,6 +1256,12 @@ pub fn compile( c.compile(None, expr); + // The final operation of any top-level Nix program must always be + // `OpForce`. A thunk should not be returned to the user in an + // unevaluated state (though in practice, a value *containing* a + // thunk might be returned). + c.chunk().push_op(OpCode::OpForce); + Ok(CompilationOutput { lambda: c.contexts.pop().unwrap().lambda, warnings: c.warnings, |