061 reject zig struct syntax

✓ Passing This code compiles and runs correctly.

Code

// Test: Parser should reject Zig-style struct syntax in subflow implementations
// Zig uses .{ .field = value } but Koru uses branch_name { field: value }

const std = @import("std");

~[abstract] event fetch { url: []const u8 }
| success []const u8
| error i32

// WRONG: This is Zig syntax, not Koru
// Should be: ~input:fetch = success { body: "mock response" }
~input:fetch =
    .{ .success = "mock response" }

input.kz

Must fail at frontend compile:

Parsing or type-checking must reject the program.

Expected compiler error

error[PARSE003]: Zig-style struct syntax '.{' is not valid Koru — use 'branch_name { field: value }' instead
  --> tests/regression/200_COMPILER_FEATURES/210_PARSER/210_061_reject_zig_struct_syntax/input.kz:13:1
    |
 13 |     .{ .success = "mock response" }
    | ^

Test Configuration

Expected Error:

Zig-style struct syntax

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