008 runtime define

✓ Passing This code compiles and runs correctly.

Code

// The REPL define: a bridge's vocabulary grows at runtime. A subflow
// declaration (`tor name { args }` + `name = <body>`) becomes a verb callable
// on subsequent turns, stored in the session's durable defined-flows table.
// The body's calls run through the same possession machinery as any dispatch.
//
// THE SHAPE (KOPIUM_RUNTIME.md, R1): run discriminates invocation from
// declaration; here the declaration path is the explicit `define` verb.
// Before define, the verb is event-denied; after, it dispatches with params
// bound — `{"branch":"","value":"hi"}` is the identity-return shape (value in
// `__type_ref`, the empty branch is the bare-return convention).
import std/io
import std/bridge
import std/runtime
import std/interpreter

tor echo { text: string } -> string
proc echo|zig {
    return text;
}

std/runtime:register(scope: "api") {
    echo(1)
}

tor check-pre { br: *std/bridge:Bridge<session> }
check-pre = std/bridge:run(br, source: "shout(text: \"hi\")")
| unhandled-branch _ |> std/io:print.ln("  UNHANDLED (unexpected)")
| result r |> std/io:print.ln("  pre-define: {{ r.value.branch:s }}")
| defined d |> std/io:print.ln("  pre-define: DEFINED {{ d:s }} (unexpected)")
| error runerr |> std/bridge:error-decode(e: runerr)
    | event-denied ev |> std/io:print.ln("  pre-define: DENIED {{ ev:s }} (expected)")
    | shape-error _ |> std/io:print.ln("  pre-define: SHAPE")
    | dispatch-error e |> std/io:print.ln("  pre-define: DISPATCH {{ e.message:s }}")
    | parse-error e |> std/io:print.ln("  pre-define: PARSE {{ e.message:s }}")
    | exhausted _ |> std/io:print.ln("  pre-define: EXHAUSTED")
    | validation-error _ |> std/io:print.ln("  pre-define: VALIDATION")
    | scope-not-found _ |> std/io:print.ln("  pre-define: NO SCOPE")
| residue _ |> std/io:print.ln("FAIL: residue outcome")

tor do-define { br: *std/bridge:Bridge<session> }
do-define = std/bridge:define(br, source: "tor shout { text: string }\nshout = echo(text)")
| defined d |> std/io:print.ln("  defined {{ d:s }}")
| parse-error e |> std/io:print.ln("  define failed: {{ e.message:s }}")

tor check-post { br: *std/bridge:Bridge<session> }
check-post = std/bridge:run(br, source: "shout(text: \"hi\")")
| unhandled-branch _ |> std/io:print.ln("  UNHANDLED (unexpected)")
| result r |> std/interpreter:value.stringify(r.value): j |> std/io:print.ln("  shout -> {{ j:s }}")
| defined d |> std/io:print.ln("  shout DEFINED {{ d:s }} (unexpected)")
| error runerr |> std/bridge:error-decode(e: runerr)
    | event-denied ev |> std/io:print.ln("  shout DENIED {{ ev:s }}")
    | shape-error _ |> std/io:print.ln("  shout SHAPE")
    | dispatch-error e |> std/io:print.ln("  shout DISPATCH {{ e.message:s }}")
    | parse-error e |> std/io:print.ln("  shout PARSE {{ e.message:s }}")
    | exhausted _ |> std/io:print.ln("  shout EXHAUSTED")
    | validation-error _ |> std/io:print.ln("  shout VALIDATION")
    | scope-not-found _ |> std/io:print.ln("  shout NO SCOPE")
| residue _ |> std/io:print.ln("FAIL: residue outcome")

[with]std/bridge:create(id: "rtdefine", scope: "api"): br
|> std/io:print.ln("--- bridge open")
|> check-pre(br)
|> do-define(br)
|> check-post(br)
|> std/io:print.ln("--- done")

input.k

Supporting Files

error[KORU047]: CS emission failed: UnsupportedConstruct

CS_REFUSES

~proc echo|cs {
    return text;
}

input.kcs

Actual · Zig

✓ pass

--- bridge open
  pre-define: DENIED shout (expected)
  defined shout
  shout -> {"branch":"","value":"hi"}
--- done

Actual · JavaScript

✗ error[KORU047]

Actual · C#

✗ error[KORU047]: CS emission failed: UnsupportedConstruct

Expected output

✓ Zig✗ JavaScript✗ C#

--- bridge open
  pre-define: DENIED shout (expected)
  defined shout
  shout -> {"branch":"","value":"hi"}
--- done

Emitted Zig source

// Access compiler flags via the per-user compiler_env module
const CompilerEnv = @import("compiler_env").CompilerEnv;

pub const panic = if (@import("builtin").mode == .Debug)
    @import("std").debug.FullPanic(@import("std").debug.defaultPanic)
else
    @import("std").debug.simple_panic;


const __koru_bare = struct {
    extern fn posix_memalign(memptr: *?*anyopaque, alignment: usize, size: usize) c_int;
    extern fn free(ptr: ?*anyopaque) void;
    fn bareAlloc(_: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, _: usize) ?[*]u8 {
        var p: ?*anyopaque = null;
        const a = @max(alignment.toByteUnits(), @sizeOf(usize));
        if (posix_memalign(&p, a, len) != 0) return null;
        return @ptrCast(p);
    }
    fn bareResize(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) bool { return false; }
    fn bareRemap(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) ?[*]u8 { return null; }
    fn bareFree(_: *anyopaque, memory: []u8, _: @import("std").mem.Alignment, _: usize) void { free(@ptrCast(memory.ptr)); }
    const vtable = @import("std").mem.Allocator.VTable{ .alloc = bareAlloc, .resize = bareResize, .remap = bareRemap, .free = bareFree };
    const allocator = @import("std").mem.Allocator{ .ptr = undefined, .vtable = &vtable };
};
const __koru_backing = if (@import("builtin").link_libc) @import("std").heap.c_allocator else if (@import("builtin").os.tag == .freestanding and !@import("builtin").cpu.arch.isWasm()) __koru_bare.allocator else @import("std").heap.page_allocator;
var __koru_leak_count: @import("std").atomic.Value(usize) = .init(0);
var __koru_par_tasks: @import("std").atomic.Value(usize) = .init(0);
const __koru_par_CAP: usize = 128;
threadlocal var __koru_par_depth: usize = 0;
const __koru_par_DEPTH_CAP: usize = 7;
var __koru_par_pool: @import("std").Thread.Pool = undefined;
var __koru_par_pool_ready: bool = false;
var __koru_par_pool_mtx: @import("std").Thread.Mutex = .{};
fn __koru_par_pool_ensure() *@import("std").Thread.Pool {
    __koru_par_pool_mtx.lock();
    defer __koru_par_pool_mtx.unlock();
    if (!__koru_par_pool_ready) {
        @import("std").Thread.Pool.init(&__koru_par_pool, .{ .allocator = @import("std").heap.smp_allocator }) catch @panic("koru: thread pool init failed");
        __koru_par_pool_ready = true;
    }
    return &__koru_par_pool;
}
fn __koru_alloc(ctx: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, ret_addr: usize) ?[*]u8 {
    _ = ctx;
    const r = __koru_backing.rawAlloc(len, alignment, ret_addr);
    if (comptime @import("builtin").mode == .Debug) {
        if (r != null) _ = __koru_leak_count.fetchAdd(1, .monotonic);
    }
    return r;
}
fn __koru_resize(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) bool {
    _ = ctx;
    return __koru_backing.rawResize(memory, alignment, new_len, ret_addr);
}
fn __koru_remap(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) ?[*]u8 {
    _ = ctx;
    return __koru_backing.rawRemap(memory, alignment, new_len, ret_addr);
}
fn __koru_free(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, ret_addr: usize) void {
    _ = ctx;
    __koru_backing.rawFree(memory, alignment, ret_addr);
    if (comptime @import("builtin").mode == .Debug) {
        _ = __koru_leak_count.fetchSub(1, .monotonic);
    }
}
const __koru_vtable = @import("std").mem.Allocator.VTable{ .alloc = __koru_alloc, .resize = __koru_resize, .remap = __koru_remap, .free = __koru_free };
pub fn koru_allocator() @import("std").mem.Allocator {
    return .{ .ptr = undefined, .vtable = &__koru_vtable };
}

pub inline fn __koru_intcast(comptime T: type, x: anytype) T {
    if (comptime (@import("builtin").mode == .Debug or @import("builtin").mode == .ReleaseSafe))
        return @as(T, @intCast(x));
    const dst = @typeInfo(T);
    const src = @typeInfo(@TypeOf(x));
    if (comptime (dst == .int and src == .int and dst.int.bits == src.int.bits and dst.int.signedness != src.int.signedness))
        return @as(T, @bitCast(x));
    return @as(T, @intCast(x));
}

fn __KoruPadI(comptime T: type) type {
    const V = switch (@typeInfo(T)) { .comptime_int => i64, .comptime_float => f64, else => T };
    return struct {
        v: V,
        width: usize,
        pub fn format(self: @This(), w: *@import("std").Io.Writer) @import("std").Io.Writer.Error!void {
            const rendered = @import("std").fmt.count("{d}", .{self.v});
            const pad = self.width -| rendered;
            for (0..pad) |_| try w.writeByte(' ');
            try w.print("{d}", .{self.v});
        }
    };
}
pub fn __koru_pad_i(width: usize, value: anytype) __KoruPadI(@TypeOf(value)) {
    return .{ .v = value, .width = width };
}

pub fn koru_leak_check() void {
    if (comptime @import("builtin").mode != .Debug) return;
    if (__koru_leak_count.load(.acquire) == 0) return;
    if (comptime @import("builtin").target.os.tag == .freestanding) {
        if (comptime @import("builtin").cpu.arch == .wasm32 or @import("builtin").cpu.arch == .wasm64) {
            @panic("KORU LEAK CHECK FAILED: the produced program leaked");
        } else {
            const __klc = struct { extern var stdout: ?*anyopaque; extern fn fputs(__s: [*:0]const u8, __st: ?*anyopaque) c_int; };
            var __lb: [128]u8 = undefined;
            const __lm = "KORU LEAK CHECK FAILED: allocations still outstanding at end of run: ";
            @memcpy(__lb[0..__lm.len], __lm);
            var __ln: usize = __lm.len;
            var __lv = __koru_leak_count.load(.acquire);
            var __ld: [20]u8 = undefined;
            var __lk: usize = 0;
            while (__lv > 0) : (__lk += 1) { __ld[__lk] = @intCast('0' + __lv % 10); __lv /= 10; }
            for (0..__lk) |__li| { __lb[__ln] = __ld[__lk - 1 - __li]; __ln += 1; }
            __lb[__ln] = '\n'; __ln += 1; __lb[__ln] = 0;
            _ = __klc.fputs(@as([*:0]const u8, @ptrCast(&__lb)), __klc.stdout);
            @trap();
        }
    } else {
        @import("std").debug.print("KORU LEAK CHECK FAILED: the produced program leaked (trace above)\n", .{});
        @import("std").process.exit(1);
    }
}

pub const main_module = struct {
    pub const echo_event = struct {
        pub const Input = struct {
            text: []const u8,
        };
        pub const Output = []const u8;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: echo  [tests/regression/400_RUNTIME_FEATURES/440_RESOURCE_BRIDGE/440_008_runtime_define/input.k:18]
            const text = __koru_event_input.text;
            _ = &text;
            _ = &__koru_event_input;

                return text;

        }
    };
        // __KORU_RUNTIME_REGISTRY_HELPERS__
    const __koru_dispatcher_std = @import("std");
    const __koru_dispatcher_ast = @import("ast");

    pub const Path = __koru_dispatcher_ast.DottedPath;
    pub const Arg = __koru_dispatcher_ast.Arg;
    pub const Invocation = __koru_dispatcher_ast.Invocation;
    pub const DispatchResult = koru_std.koru_runtime.DispatchResult;
    const __koru_ScopeEvent = koru_std.koru_runtime.ScopeEvent;
    const __koru_ScopeDescriptor = koru_std.koru_runtime.ScopeDescriptor;
    const __koru_ScopeManifest = koru_std.koru_runtime.ScopeManifest;
    const __koru_ManifestEvent = koru_std.koru_runtime.ManifestEvent;
    const __koru_ManifestArg = koru_std.koru_runtime.ManifestArg;
    const __koru_ManifestCreate = koru_std.koru_runtime.ManifestCreate;
    const __koru_ManifestDischarge = koru_std.koru_runtime.ManifestDischarge;
    const __koru_ManifestBranch = koru_std.koru_runtime.ManifestBranch;
    const __koru_ManifestBranchField = koru_std.koru_runtime.ManifestBranchField;
    const __koru_FieldValue = koru_std.koru_runtime.FieldValue;
    const __koru_NamedField = koru_std.koru_runtime.NamedField;

    fn __koru_getArg(__koru_args: []const __koru_dispatcher_ast.Arg, __koru_n: []const u8) ?[]const u8 {
        for (__koru_args) |__koru_arg| {
            if (__koru_dispatcher_std.mem.eql(u8, __koru_arg.name, __koru_n)) {
                var __koru_v = __koru_arg.value;
                if (__koru_v.len >= 2 and __koru_v[0] == '"' and __koru_v[__koru_v.len-1] == '"') __koru_v = __koru_v[1..__koru_v.len-1];
                return __koru_v;
            }
        }
        return null;
    }

    fn __koru_buildInput(comptime __koru_T: type, __koru_args: []const __koru_dispatcher_ast.Arg) !__koru_T {
        var __koru_input: __koru_T = undefined;
        inline for (__koru_dispatcher_std.meta.fields(__koru_T)) |__koru_field| {
            const __koru_raw = __koru_getArg(__koru_args, __koru_field.name) orelse "";
            const __koru_F = __koru_field.type;
            if (__koru_F == bool) {
                @field(__koru_input, __koru_field.name) = __koru_dispatcher_std.mem.eql(u8, __koru_raw, "true") or __koru_dispatcher_std.mem.eql(u8, __koru_raw, "1");
            } else switch (@typeInfo(__koru_F)) {
                .int => {
                    @field(__koru_input, __koru_field.name) = __koru_dispatcher_std.fmt.parseInt(__koru_F, __koru_raw, 10) catch {
                        koru_std.koru_interpreter.setDispatchDetail(__koru_dispatcher_std.fmt.allocPrint(__koru_dispatcher_std.heap.page_allocator, "field '{s}' expected " ++ @typeName(__koru_F) ++ ", got '{s}'", .{ __koru_field.name, __koru_raw }) catch @panic("dispatch: OOM"));
                        return error.InvalidArgument;
                    };
                },
                .float => {
                    @field(__koru_input, __koru_field.name) = __koru_dispatcher_std.fmt.parseFloat(__koru_F, __koru_raw) catch {
                        koru_std.koru_interpreter.setDispatchDetail(__koru_dispatcher_std.fmt.allocPrint(__koru_dispatcher_std.heap.page_allocator, "field '{s}' expected " ++ @typeName(__koru_F) ++ ", got '{s}'", .{ __koru_field.name, __koru_raw }) catch @panic("dispatch: OOM"));
                        return error.InvalidArgument;
                    };
                },
                .pointer => |__koru_ptr_info| {
                    if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == u8) {
                        @field(__koru_input, __koru_field.name) = __koru_raw;
                    } else {
                        @field(__koru_input, __koru_field.name) = koru_std.koru_interpreter.resolveDispatchResource(__koru_F, __koru_raw) orelse {
                            koru_std.koru_interpreter.setDispatchDetail(__koru_dispatcher_std.fmt.allocPrint(__koru_dispatcher_std.heap.page_allocator, "field '{s}' names a resource token this pool does not hold — got '{s}'", .{ __koru_field.name, __koru_raw }) catch @panic("dispatch: OOM"));
                            return error.InvalidArgument;
                        };
                    }
                },
                else => {
                    @field(__koru_input, __koru_field.name) = __koru_dispatcher_std.mem.zeroes(__koru_F);
                },
            }
        }
        return __koru_input;
    }

    fn __koru_own(comptime __koru_T: type, __koru_s: []const __koru_T) []const __koru_T {
    const __koru_a = __koru_dispatcher_std.heap.page_allocator;
    if (__koru_T == u8) return __koru_a.dupe(u8, __koru_s) catch @panic("dispatch: OOM owning result");
        const __koru_out = __koru_a.alloc(__koru_T, __koru_s.len) catch @panic("dispatch: OOM owning result");
    for (__koru_s, 0..) |__koru_e, __koru_i| __koru_out[__koru_i] = __koru_a.dupe(u8, __koru_e) catch @panic("dispatch: OOM owning result");
    return __koru_out;
}

    fn dispatch_api_echo(__koru_inv: *const __koru_dispatcher_ast.Invocation, __koru_out: *koru_std.koru_runtime.DispatchResult) !void {
        const __koru_Input = main_module.echo_event.Input;
        const __koru_Handler = main_module.echo_event;
        const __koru_ReturnType = @typeInfo(@TypeOf(__koru_Handler.handler)).@"fn".return_type.?;
        if (__koru_ReturnType == void) {
            // Void event - just call and return empty __koru_branch
            __koru_Handler.handler(try __koru_buildInput(__koru_Input, __koru_inv.args));
            __koru_out.* = .{ .branch = "", .fields = &.{} };
            return;
        }
        if (@typeInfo(__koru_ReturnType) != .@"union") {
            // Single-return tor (`-> __koru_T`): the value BINDS, it does not select a
            // __koru_branch. Reported as the empty __koru_branch with the value on __type_ref,
            // the same channel identity branches use for bare payloads.
            const __koru_v = __koru_Handler.handler(try __koru_buildInput(__koru_Input, __koru_inv.args));
            const __koru_V = @TypeOf(__koru_v);
            const __koru_SR = struct { threadlocal var buf: [1]__koru_NamedField = undefined; };
            var __koru_n: usize = 0;
            if (__koru_V == bool) {
                __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .bool_val = __koru_v } };
                __koru_n = 1;
            } else if (@typeInfo(__koru_V) == .int) {
                __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .int_val = @as(i64, @intCast(__koru_v)) } };
                __koru_n = 1;
            } else if (@typeInfo(__koru_V) == .float) {
                __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .float_val = @as(f64, @floatCast(__koru_v)) } };
                __koru_n = 1;
            } else if (@typeInfo(__koru_V) == .pointer) {
                const __koru_ptr_info = @typeInfo(__koru_V).pointer;
                if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == u8) {
                    __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_val = __koru_own(u8, __koru_v) } };
                    __koru_n = 1;
                } else if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == []const u8) {
                __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_array = __koru_own([]const u8, __koru_v) } };
                __koru_n = 1;
                } else {
                    __koru_SR.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_val = koru_std.koru_interpreter.registerDispatchResource(@typeName(__koru_ptr_info.child), __koru_v) } };
                    __koru_n = 1;
                }
            }
            __koru_out.* = .{ .branch = "", .fields = __koru_SR.buf[0..__koru_n] };
            return;
        }
        // Branched event - extract __koru_branch and fields
        const __koru_r = __koru_Handler.handler(try __koru_buildInput(__koru_Input, __koru_inv.args));
        const __koru_S = struct { threadlocal var buf: [16]__koru_NamedField = undefined; };
        const __koru_branch = @tagName(__koru_r);
        const __koru_field_count = switch (__koru_r) { inline else => |__koru_p| blk: {
            const __koru_P = @TypeOf(__koru_p);
            // Identity branches have bare types, not structs
            if (@typeInfo(__koru_P) != .@"struct") {
                // Identity __koru_branch - create synthetic __type_ref __koru_field
                if (__koru_P == bool) {
                    __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .bool_val = __koru_p } };
                } else if (@typeInfo(__koru_P) == .int) {
                    __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .int_val = @as(i64, @intCast(__koru_p)) } };
                } else if (@typeInfo(__koru_P) == .float) {
                    __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .float_val = @as(f64, @floatCast(__koru_p)) } };
                } else if (@typeInfo(__koru_P) == .pointer) {
                    const __koru_ptr_info = @typeInfo(__koru_P).pointer;
                    if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == u8) {
                        __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_val = __koru_own(u8, __koru_p) } };
                    } else if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == []const u8) {
                    __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_array = __koru_own([]const u8, __koru_p) } };
                    } else {
                        __koru_S.buf[0] = .{ .name = "__type_ref", .value = __koru_FieldValue{ .string_val = koru_std.koru_interpreter.registerDispatchResource(@typeName(__koru_ptr_info.child), __koru_p) } };
                    }
                } else {
                    break :blk @as(usize, 0);
                }
                break :blk @as(usize, 1);
            }
            // Compound __koru_branch - iterate over struct fields
            const __koru_payload_fields = __koru_dispatcher_std.meta.fields(__koru_P);
            comptime var __koru_count: usize = 0;
            inline for (__koru_payload_fields) |__koru_field| {
                const __koru_T = __koru_field.type;
                if (__koru_T == bool) {
                    __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .bool_val = @field(__koru_p, __koru_field.name) } };
                    __koru_count += 1;
                } else switch (@typeInfo(__koru_T)) {
                    .int => {
                        __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .int_val = @as(i64, @intCast(@field(__koru_p, __koru_field.name))) } };
                        __koru_count += 1;
                    },
                    .float => {
                        __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .float_val = @as(f64, @floatCast(@field(__koru_p, __koru_field.name))) } };
                        __koru_count += 1;
                    },
                    .pointer => |__koru_ptr_info| {
                        if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == u8) {
                            __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .string_val = __koru_own(u8, @field(__koru_p, __koru_field.name)) } };
                            __koru_count += 1;
                        } else if (__koru_ptr_info.size == .slice and __koru_ptr_info.child == []const u8) {
                        __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .string_array = __koru_own([]const u8, @field(__koru_p, __koru_field.name)) } };
                        __koru_count += 1;
                        } else if (__koru_ptr_info.size == .one) {
                            __koru_S.buf[__koru_count] = .{ .name = __koru_field.name, .value = __koru_FieldValue{ .string_val = koru_std.koru_interpreter.registerDispatchResource(@typeName(__koru_ptr_info.child), @field(__koru_p, __koru_field.name)) } };
                            __koru_count += 1;
                        }
                    },
                    else => {},
                }
            }
            break :blk __koru_count;
        }};
        __koru_out.* = .{ .branch = __koru_branch, .fields = __koru_S.buf[0..__koru_field_count] };
        return;
    }

    const scope_events_api = [_]__koru_ScopeEvent{
        .{ .name = "echo", .cost = 1, .creates_obligations = &[_][]const u8{}, .discharges_obligations = &[_][]const u8{}, .creates_specs = &[_]koru_std.koru_runtime.CreateSpec{}, .discharges_specs = &[_]koru_std.koru_runtime.DischargeSpec{}, .branches = &[_]koru_std.koru_runtime.BranchSpec{.{ .name = "ok", .fields = &[_]koru_std.koru_runtime.BranchField{.{ .name = "__type_ref", .type_name = "string", .is_optional = false }}, .is_optional = false }}, .input_fields = &[_]koru_std.koru_runtime.In

... [truncated - 467KB total]

Emitted C# source

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);
  // The mutable handle carrier — `*String`-style resources are
  // `new __KoruBox { data = … }` because C# anonymous types are
  // read-only: `s.data = …` (std/string append/clear, handle
  // mutation generally) needs a settable member.
  public class __KoruBox { public dynamic data; }
  // Textification for `{{ … }}` operands: C# bool ToStrings as
  // `True` where Koru prints `true`, and the operand's static type
  // is unknown at this boundary — a `(x) is bool` inline test would
  // be a compile error on statically-typed operands instead. Generic
  // on purpose: `dynamic` boxed every value-type operand — measured
  // ~1s/10M elements on 012_threat_scanner — while T specializes to
  // the operand's own ToString() with no box.
  public static string __koru_str<T>(T v) => v is bool b ? (b ? "true" : "false") : v?.ToString();
  public static class echo_event {
    public struct Input {
      public string text;
    }
    public static string handler(Input __koru_input) {
      var text = __koru_input.text;
      return text;

      return default;

    }
  }
  public static class check_pre_event {
    public struct Input {
      public dynamic br;
    }
    public static dynamic handler(Input __koru_input) {
      var br = __koru_input.br;
      var result_0 = main_module.std_bridge_run_event.handler(new std_bridge_run_event.Input { br = br, source = (string)("shout(text: \"hi\")")});
      if (result_0.tag == "unhandled-branch") {
        var _auto_8 = result_0.unhandled_branch;
__koru_stdout_write("  UNHANDLED (unexpected)" + "\n");
      }
      if (result_0.tag == "result") {
        var r = result_0.result;
__koru_stdout_write("  pre-define: " + __koru_str(r.value.branch) + "\n");
      }
      if (result_0.tag == "defined") {
        var d = result_0.defined;
__koru_stdout_write("  pre-define: DEFINED " + __koru_str(d) + " (unexpected)" + "\n");
      }
      if (result_0.tag == "event-denied") {
        var ev = result_0.event_denied;
__koru_stdout_write("  pre-define: DENIED " + __koru_str(ev) + " (expected)" + "\n");
      }
      if (result_0.tag == "shape-error") {
        var _auto_9 = result_0.shape_error;
__koru_stdout_write("  pre-define: SHAPE" + "\n");
      }
      if (result_0.tag == "dispatch-error") {
        var e = result_0.dispatch_error;
__koru_stdout_write("  pre-define: DISPATCH " + __koru_str(e.message) + "\n");
      }
      if (result_0.tag == "residue") {
        var _auto_10 = result_0.residue;
__koru_stdout_write("FAIL: residue outcome" + "\n");
      }
      if (result_0.tag == "parse-error") {
        var e = result_0.parse_error;
__koru_stdout_write("  pre-define: PARSE " + __koru_str(e.message) + "\n");
      }
      if (result_0.tag == "exhausted") {
        var _auto_11 = result_0.exhausted;
__koru_stdout_write("  pre-define: EXHAUSTED" + "\n");
      }
      if (result_0.tag == "validation-error") {
        var _auto_12 = result_0.validation_error;
__koru_stdout_write("  pre-define: VALIDATION" + "\n");
      }
      if (result_0.tag == "scope-not-found") {
        var _auto_13 = result_0.scope_not_found;
__koru_stdout_write("  pre-define: NO SCOPE" + "\n");
      }
      if (result_0.tag == "partial") {
        var _auto_14 = result_0.partial;
      }

      return default;

    }
  }
  public static class do_define_event {
    public struct Input {
      public dynamic br;
    }
    public static dynamic handler(Input __koru_input) {
      var br = __koru_input.br;
      var result_1 = main_module.std_bridge_define_event.handler(new std_bridge_define_event.Input { br = br, source = (string)("tor shout { text: string }\nshout = echo(text)")});
      if (result_1.tag == "defined") {
        var d = result_1.defined;
__koru_stdout_write("  defined " + __koru_str(d) + "\n");
      }
      if (result_1.tag == "parse-error") {
        var e = result_1.parse_error;
__koru_stdout_write("  define failed: " + __koru_str(e.message) + "\n");
      }

      return default;

    }
  }
  public static class check_post_event {
    public struct Input {
      public dynamic br;
    }
    public static dynamic handler(Input __koru_input) {
      var br = __koru_input.br;
      var result_2 = main_module.std_bridge_run_event.handler(new std_bridge_run_event.Input { br = br, source = (string)("shout(text: \"hi\")")});
      if (result_2.tag == "unhandled-branch") {
        var _auto_15 = result_2.unhandled_branch;
__koru_stdout_write("  UNHANDLED (unexpected)" + "\n");
      }
      if (result_2.tag == "result") {
        var r = result_2.result;
        var j = main_module.std_interpreter_value_stringify_event.handler(new std_interpreter_value_stringify_event.Input { value = r.value});
__koru_stdout_write("  shout -> " + __koru_str(j) + "\n");
        {
          var __koru_p_content = (string)(j);
          // The host owns memory — a Koru string is a managed C# string and the
          // GC settles the `allocated!` debt. Empty by construction.
        }
      }
      if (result_2.tag == "defined") {
        var d = result_2.defined;
__koru_stdout_write("  shout DEFINED " + __koru_str(d) + " (unexpected)" + "\n");
      }
      if (result_2.tag == "event-denied") {
        var ev = result_2.event_denied;
__koru_stdout_write("  shout DENIED " + __koru_str(ev) + "\n");
      }
      if (result_2.tag == "shape-error") {
        var _auto_16 = result_2.shape_error;
__koru_stdout_write("  shout SHAPE" + "\n");
      }
      if (result_2.tag == "dispatch-error") {
        var e = result_2.dispatch_error;
__koru_stdout_write("  shout DISPATCH " + __koru_str(e.message) + "\n");
      }
      if (result_2.tag == "residue") {
        var _auto_17 = result_2.residue;
__koru_stdout_write("FAIL: residue outcome" + "\n");
      }
      if (result_2.tag == "parse-error") {
        var e = result_2.parse_error;
__koru_stdout_write("  shout PARSE " + __koru_str(e.message) + "\n");
      }
      if (result_2.tag == "exhausted") {
        var _auto_18 = result_2.exhausted;
__koru_stdout_write("  shout EXHAUSTED" + "\n");
      }
      if (result_2.tag == "validation-error") {
        var _auto_19 = result_2.validation_error;
__koru_stdout_write("  shout VALIDATION" + "\n");
      }
      if (result_2.tag == "scope-not-found") {
        var _auto_20 = result_2.scope_not_found;
__koru_stdout_write("  shout NO SCOPE" + "\n");
      }
      if (result_2.tag == "partial") {
        var _auto_21 = result_2.partial;
      }

      return default;

    }
  }
  public static class std_io_free_event {
    public struct Input {
      public string content;
    }
    public static dynamic handler(Input __koru_input) {
      var content = __koru_input.content;
      // The host owns memory — a Koru string is a managed C# string and the
      // GC settles the `allocated!` debt. Empty by construction.

      return default;

    }
  }
  public static class std_io_print_ln_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("ln: [transform] tor is lowered at compile time and must never be called");

    }
  }
  public static class std_bridge_close_event {
    public struct Input {
      public dynamic br;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.bridge:close has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static class std_bridge_create_event {
    public struct Input {
      public dynamic id;
      public dynamic scope;
      public dynamic introspection;
      public dynamic world;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.bridge:create has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static class std_bridge_run_event {
    public struct Input {
      public dynamic br;
      public dynamic source;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.bridge:run has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static class std_bridge_define_event {
    public struct Input {
      public dynamic br;
      public dynamic source;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.bridge:define has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static class std_interpreter_value_stringify_event {
    public struct Input {
      public dynamic value;
    }
    public static dynamic handler(dynamic __koru_input) {
      throw new global::System.Exception("std.interpreter:stringify has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
    }
  }
  public static class koru_start_event {
    public struct Input {
    }
    public struct Output {
      public string tag;
      public dynamic done;
    }
    public static Output handler(Input __koru_input) => new Output { tag = "done" };
  }
  public static class koru_end_event {
    public struct Input {
    }
    public struct Output {
      public string tag;
      public dynamic done;
    }
    public static Output handler(Input __koru_input) => new Output { tag = "done" };
  }
  public static void flow0() {
    var br = main_module.std_bridge_create_event.handler(new std_bridge_create_event.Input { id = (string)("rtdefine"), scope = (string)("api")});
__koru_stdout_write("--- bridge open" + "\n");
    main_module.check_pre_event.handler(new check_pre_event.Input { br = br});
    main_module.do_define_event.handler(new do_define_event.Input { br = br});
    main_module.check_post_event.handler(new check_post_event.Input { br = br});
__koru_stdout_write("--- done" + "\n");
    main_module.std_bridge_close_event.handler(new std_bridge_close_event.Input { br = br});
  }
  public static void flow1() {
    main_module.koru_start_event.handler(new koru_start_event.Input { });
  }
  public static void flow2() {
    main_module.koru_end_event.handler(new koru_end_event.Input { });
  }
}

static class Program {
  static void Main() {
    main_module.flow1();
    main_module.flow0();
    main_module.flow2();
  }
}

Flows

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

subflow ~check-pre click a branch to expand · @labels scroll to their anchor

run (br, source: "shout(text: \"hi\")")

subflow ~do-define click a branch to expand · @labels scroll to their anchor

define (br, source: "tor shout { text: string }\nshout = echo(text)")

subflow ~check-post click a branch to expand · @labels scroll to their anchor

run (br, source: "shout(text: \"hi\")")

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

create (id: "rtdefine", scope: "api")

Test Configuration

MUST_RUN JS_REFUSES LANGUAGES: zig js cs

JS must refuse with:

error[KORU047]

← 007 reissuing event is not a discharger 009 run discriminates define →