001 io println cross target

✓ Passing This code compiles and runs correctly.

Code

// Cross-target stdlib parity: the idiomatic hello-world through std.io must
// produce identical output whether emitted to Zig or JS. `println` resolves
// across the module boundary (std.io is imported, module-qualified), and the
// JS target uses println's |js variant (console.log) while Zig uses |zig
// (std.debug.print). Same source, same output, two backends.
~import std/io

~std/io:print("Hello, world!\n")

input.kz

Supporting Files

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a_cs_equiv.deps.json

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a_cs_equiv.runtimeconfig.json

Hello, world!

actual.cs.txt

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koru.csproj

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

using System;
using System.Reflection;

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obj/koru.csproj.nuget.g.props

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obj/koru.csproj.nuget.g.targets

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obj/project.nuget.cache

static class main_module {
  public static void __koru_stdout_write(dynamic s) => global::System.Console.Out.Write(s);
  public static void __koru_stderr_write(dynamic s) => global::System.Console.Error.Write(s);
  public static class print_event {
    public struct Input {
      public dynamic expr;
      public dynamic invocation;
      public dynamic item;
      public dynamic program;
      public dynamic reporter;
      public dynamic allocator;
    }
    public static dynamic handler(Input __koru_input) {
      var expr = __koru_input.expr;
      var invocation = __koru_input.invocation;
      var item = __koru_input.item;
      var program = __koru_input.program;
      var reporter = __koru_input.reporter;
      var allocator = __koru_input.allocator;
      throw new global::System.Exception("print: [transform] tor is lowered at compile time and must never be called");

    }
  }
  public static class impl_event {
    public struct Input {
      public dynamic expr;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.io:impl has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static void flow0() {
__koru_stdout_write("Hello, world!\n");
  }
}

static class Program {
  static void Main() {
    main_module.flow0();
  }
}

output_emitted.cs

Actual

Hello, world!

Expected output

✓ Zig✓ JavaScript✓ C#

Hello, world!

Flows

flow ~print click a branch to expand · @labels scroll to their anchor

print (expr: "Hello, world!\n")

Test Configuration

MUST_RUN LANGUAGES: zig js cs

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