PT005 (micro test)

{
  "@context": "https://nxdlang.org/schema",
  "doc_id": "PT005",
  "title": "",
  "description": "NXD Compiler Testing Notes - Nim",
  "layer": "Passed Tests",
  "category": "Passed Tests",
  "keywords": [Transpilation, Compiler, Nim], 
  "doc_version": "1.0",
  "status": "active"
}

# PT005 (micro test)

### NXD Sample:


```json
{
  "module": {
    "name": "TEST",
    "imports": []
  },
  "types": [],
  "traits": [],
  "impls": [],
  "functions": [
    {
      "name": "MAIN",
      "params": [],
      "return_type": null,
      "body": [
        {
          "Return": {
            "Literal": {
              "Int": 1
            }
          }
        }
      ]
    }
  ],
  "statements": []
}
```    

### Result:

PASS

Expected Output:

### Actual Output:

(st005_rust.nim)
```nim
# test


proc main() =
  return 1
```


### Notes:

Verified Python frontend successfully parsed a function declaration.
Verified AST → IR lowering for FUNC MAIN.
Verified IR JSON serialization of function body.
Verified Rust successfully deserialized:
IRRoot
IRFunction
IRStatement::Return
IRExpr::Literal
Verified Nim backend emitted a valid procedure declaration.
Verified integer literal preservation through the entire pipeline.
Confirmed first successful end-to-end function handoff from Python frontend to Rust backend.

#### Technical Significance:

First validation beyond module-level emission.
Demonstrates function body reconstruction in Rust.
Establishes baseline for statement emission.