Function resolve_rhs_pipe

src/completion/variable/rhs_resolution.rs:659–690

Resolve a pipe expression `$input |> callable(...)` to the callable's return type. The pipe operator passes `$input` as the first argument to `callable` and returns its result. Chains like `$a |> f(...) |> g(...)` are nested: the outer pipe's input is the inner pipe expression. Currently handles function-level callables (e.g. `createDate(...)`). Method and static method callables are not yet su

(pipe: &Pipe<'_>, ctx: &VarResolutionCtx<'_>)

/// Currently handles function-level callables (e.g. `createDate(...)`).
/// Method and static method callables are not yet supported.
fn resolve_rhs_pipe(pipe: &Pipe<'_>, ctx: &VarResolutionCtx<'_>) -> Vec<ResolvedType> {
    // The callable determines the result type.
    // For `PartialApplication::Function`, extract the function name
    // and look up its return type.
    match pipe.callable {
        Expression::PartialApplication(PartialApplication::Function(fpa)) => {
            let func_name = match fpa.function {
                Expression::Identifier(ident) => ident.value().to_string(),
                _ => return vec![],
            };
            if let Some(fl) = ctx.function_loader()
                && let Some(func_info) = fl(&func_name)
                && let Some(ref ret) = func_info.return_type
            {
                return ResolvedType::from_classes_with_hint(
                    crate::completion::type_resolution::type_hint_to_classes_typed(
                        ret,
                        &ctx.current_class.name,
                        ctx.all_classes,
                        ctx.class_loader,
                    ),
                    ret.clone(),
                );
            }
            vec![]
        }
        // Method callable: `$input |> $obj->method(...)`
        // Static callable: `$input |> Class::method(...)`
        // Not yet supported — fall back to empty.
        _ => vec![],
    }
}

/// Resolve `new ClassName(…)` to the instantiated class.
fn resolve_rhs_instantiation(