009 source with scope capture

○ Planned This feature is planned but not yet implemented.

OWED: source-with-captured-continuation-bindings AST matches the pinned dump.

Code

// ============================================================================
// VERIFIED REGRESSION TEST - DO NOT MODIFY WITHOUT DISCUSSION
// ============================================================================
// Test: Source with Captured Continuation Bindings
// Feature: Source parameters capture continuation bindings in their scope
// Verifies: Scope capture for template metaprogramming
// ============================================================================

~import std/io

// Event that provides user data
~tor getUserData { } -> { name: string, age: i32 }

~proc getUserData|zig {
    return .{ .name = "Alice", .age = 42 };
}

// Event that takes Source parameter for HTML rendering
~tor renderHTML { source: Source<HTML> } -> string

// Comptime proc that receives Source with captured scope
~proc renderHTML|zig {
    // For now, just verify syntax works and return hardcoded HTML
    // In the future, source.scope.bindings will contain the captured 'u' binding
    return "<div>Captured binding in scope!</div>";
}

// Test: Source block syntax
~renderHTML {
    <div>
        <h1>Module-level test</h1>
        <p>Syntax validated</p>
    </div>
} -> h |> std/io:print.ln(h.html)

input.kz

Flows

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

renderHTML (source: <div> <h1>Module-level test</h1> <p>Syntax validated</p> </div>)

Expected AST

{
  "module_annotations": [],
  "items": [
    {
      "type": "import_decl",
      "path": "std/compiler",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 2,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 2,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 3,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 4,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 5,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 6,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 7,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 8,
        "col": 0
      }
    },
    {
      "type": "import_decl",
      "path": "std/io",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 11,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 12,
        "col": 0
      }
    },
    {
      "type": "event_decl",
      "name": "getUserData",
      "path": [
        "getUserData"
      ],
      "module": "input",
      "input": {
        "fields": []
      },
      "branches": [],
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 12,
        "col": 0
      }
    },
    {
      "type": "proc_decl",
      "event_name": "getUserData",
      "path": [
        "getUserData"
      ],
      "module": "input",
      "target": "zig",
      "is_pure": false,
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 18,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 19,
        "col": 0
      }
    },
    {
      "type": "event_decl",
      "name": "renderHTML",
      "path": [
        "renderHTML"
      ],
      "module": "input",
      "input": {
        "fields": [
          {
            "name": "source",
            "type": "Source<HTML>",
            "is_source": true,
            "is_file": false,
            "is_embed_file": false,
            "is_expression": false,
            "is_invocation_meta": false,
            "phantom": null
          }
        ]
      },
      "branches": [],
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 19,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 22,
        "col": 0
      }
    },
    {
      "type": "proc_decl",
      "event_name": "renderHTML",
      "path": [
        "renderHTML"
      ],
      "module": "input",
      "target": "zig",
      "is_pure": false,
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 28,
        "col": 0
      }
    },
    {
      "type": "host_line",
      "module": "input",
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 29,
        "col": 0
      }
    },
    {
      "type": "flow",
      "invocation": {
        "event": [
          "renderHTML"
        ],
        "args": [
          {
            "name": "source",
            "value": "<div>\n    <h1>Module-level test</h1>\n    <p>Syntax validated</p>\n</div>",
            "source_value": {
              "text": "<div>\n    <h1>Module-level test</h1>\n    <p>Syntax validated</p>\n</div>",
              "location": {
                "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
                "line": 36,
                "col": 0
              },
              "scope": {
                "bindings": []
              },
              "phantom_type": null
            }
          }
        ],
        "variant": null
      },
      "continuations": [
        {
          "branch": "",
          "kind": "terminal",
          "is_catchall": false,
          "binding": null,
          "binding_type": "branch_payload",
          "condition": null,
          "step": {
            "type": "invocation",
            "invocation": {
              "event": [
                "print",
                "ln"
              ],
              "args": [
                {
                  "name": "expr",
                  "value": "h.html",
                  "expression_value": {
                    "text": "h.html",
                    "location": {
                      "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
                      "line": 36,
                      "col": 0
                    },
                    "scope": {
                      "bindings": []
                    }
                  }
                }
              ],
              "variant": null
            }
          },
          "continuations": []
        }
      ],
      "pre_label": null,
      "impl_of": null,
      "location": {
        "file": "tests/regression/200_COMPILER_FEATURES/210_PARSER/210_009_source_with_scope_capture/input.kz",
        "line": 30,
        "col": 0
      }
    }
  ]
}

Test Configuration

PARSER_TEST

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