windjammer 0.48.0

A simple language inspired by Go, Ruby, and Elixir that transpiles to Rust - 80% of Rust's power with 20% of the complexity
Documentation 
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#![cfg(any(
    not(any(
        feature = "parser_tests",
        feature = "analyzer_tests",
        feature = "codegen_tests",
        feature = "interpreter_tests",
        feature = "conformance_tests",
        feature = "integration_tests",
    )),
    feature = "analyzer_tests",
))]

// TDD Test: Compound operators should be preserved in generated code
// Bug: `x += 1` expands to `x = x + 1` instead of `x += 1`
// Expected: Preserve compound operators for cleaner, more idiomatic Rust

use std::fs;
use std::process::Command;
use tempfile::TempDir;

fn compile_and_check(code: &str) -> (bool, String) {
    let temp_dir = TempDir::new().expect("Failed to create temp dir");
    let test_file = temp_dir.path().join("test.wj");
    let output_file = temp_dir.path().join("test.rs");

    fs::write(&test_file, code).expect("Failed to write test file");

    let output = Command::new(env!("CARGO_BIN_EXE_wj"))
        .args([
            "build",
            test_file.to_str().unwrap(),
            "--output",
            temp_dir.path().to_str().unwrap(),
            "--no-cargo",
        ])
        .current_dir(env!("CARGO_MANIFEST_DIR"))
        .output()
        .expect("Failed to run wj");

    let generated = fs::read_to_string(&output_file).unwrap_or_default();
    (output.status.success(), generated)
}

#[test]
#[cfg_attr(tarpaulin, ignore)]
fn test_compound_addition() {
    let code = r#"
pub struct Counter {
    pub count: int,
}

impl Counter {
    pub fn increment(self) {
        self.count += 1
    }
}
"#;

    let (success, generated) = compile_and_check(code);
    assert!(success, "Should compile successfully");

    // Should preserve += operator
    assert!(
        generated.contains("self.count += 1"),
        "Should preserve '+=' operator, not expand it. Generated:\n{}",
        generated
    );
    assert!(
        !generated.contains("self.count = self.count + 1"),
        "Should NOT expand to 'x = x + 1'. Generated:\n{}",
        generated
    );
}

#[test]
#[cfg_attr(tarpaulin, ignore)]
fn test_compound_all_operators() {
    let code = r#"
pub struct Math {
    pub value: int,
}

impl Math {
    pub fn ops(self, x: int) {
        self.value += x;
        self.value -= x;
        self.value *= x;
        self.value /= x
    }
}
"#;

    let (success, generated) = compile_and_check(code);
    assert!(success, "Should compile successfully");

    // Should preserve all compound operators
    assert!(
        generated.contains("self.value += x"),
        "Should preserve '+=' operator. Generated:\n{}",
        generated
    );
    assert!(
        generated.contains("self.value -= x"),
        "Should preserve '-=' operator. Generated:\n{}",
        generated
    );
    assert!(
        generated.contains("self.value *= x"),
        "Should preserve '*=' operator. Generated:\n{}",
        generated
    );
    assert!(
        generated.contains("self.value /= x"),
        "Should preserve '/=' operator. Generated:\n{}",
        generated
    );
}

#[test]
#[cfg_attr(tarpaulin, ignore)]
fn test_compound_with_field_access() {
    let code = r#"
pub struct Vec2 {
    pub x: f32,
    pub y: f32,
}

impl Vec2 {
    pub fn add(self, other: Vec2) {
        self.x += other.x;
        self.y += other.y
    }
}
"#;

    let (success, generated) = compile_and_check(code);
    assert!(success, "Should compile successfully");

    assert!(
        generated.contains("self.x += other.x"),
        "Should preserve compound operator with field access. Generated:\n{}",
        generated
    );
    assert!(
        generated.contains("self.y += other.y"),
        "Should preserve compound operator with field access. Generated:\n{}",
        generated
    );
}