giles
455e48df07
All signal operations (computed, effect, batch, etc.) now dispatch function calls through cek-call, which routes SX lambdas via cek-run and native callables via apply. This replaces the invoke shim. Key changes: - cek.sx: add cek-call (defined before reactive-shift-deref), replace invoke in subscriber disposal and ReactiveResetFrame handler - signals.sx: replace all 11 invoke calls with cek-call - js.sx: fix octal escape in js-quote-string (char-from-code 0) - platform_js.py: fix JS append to match Python (list concat semantics), add Continuation type guard in PLATFORM_CEK_JS, add scheduleIdle safety check, module ordering (cek before signals) - platform_py.py: fix ident-char regex (remove [ ] from valid chars), module ordering (cek before signals) - run_js_sx.py: emit PLATFORM_CEK_JS before transpiled spec files - page-functions.sx: add cek and provide page functions for SX URLs Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
357 lines
12 KiB
Python
357 lines
12 KiB
Python
"""
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Parse boundary declarations from multiple sources.
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Three tiers of boundary files:
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1. shared/sx/ref/boundary.sx — core SX language I/O contract
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2. shared/sx/ref/boundary-app.sx — deployment-specific layout I/O
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3. {service}/sx/boundary.sx — per-service page helpers
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Shared by both bootstrap_py.py and bootstrap_js.py, and used at runtime
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by the validation module.
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"""
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from __future__ import annotations
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import glob
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import logging
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import os
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from typing import Any
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logger = logging.getLogger("sx.boundary_parser")
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# Allow standalone use (from bootstrappers) or in-project imports
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try:
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from shared.sx.types import Symbol, Keyword, NIL as SX_NIL
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except ImportError:
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import sys
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_HERE = os.path.dirname(os.path.abspath(__file__))
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_PROJECT = os.path.abspath(os.path.join(_HERE, "..", "..", ".."))
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sys.path.insert(0, _PROJECT)
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from shared.sx.types import Symbol, Keyword, NIL as SX_NIL
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def _get_parse_all():
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"""Lazy import to avoid circular dependency when parser.py loads sx_ref.py."""
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from shared.sx.parser import parse_all
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return parse_all
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def _ref_dir() -> str:
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return os.path.dirname(os.path.abspath(__file__))
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def _project_root() -> str:
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"""Return the project root containing service directories.
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Dev: shared/sx/ref -> shared/sx -> shared -> project root
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Docker: /app/shared/sx/ref -> /app (shared is inside /app)
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"""
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ref = _ref_dir()
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# Go up 3 levels: shared/sx/ref -> project root
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root = os.path.abspath(os.path.join(ref, "..", "..", ".."))
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# Verify by checking for a known service directory or shared/
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if os.path.isdir(os.path.join(root, "shared")):
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return root
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# Docker: /app/shared/sx/ref -> /app
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# shared is INSIDE /app, not a sibling — go up to parent of shared
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root = os.path.abspath(os.path.join(ref, "..", ".."))
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if os.path.isdir(os.path.join(root, "sx")): # /app/sx exists in Docker
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return root
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return root
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def _read_file(filename: str) -> str:
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filepath = os.path.join(_ref_dir(), filename)
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with open(filepath, encoding="utf-8") as f:
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return f.read()
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def _read_file_path(filepath: str) -> str:
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with open(filepath, encoding="utf-8") as f:
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return f.read()
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def _extract_keyword_arg(expr: list, key: str) -> Any:
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"""Extract :key value from a flat keyword-arg list."""
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for i, item in enumerate(expr):
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if isinstance(item, Keyword) and item.name == key and i + 1 < len(expr):
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return expr[i + 1]
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return None
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def _extract_declarations(
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source: str,
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) -> tuple[set[str], dict[str, set[str]]]:
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"""Extract I/O primitive names and page helper names from boundary source.
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Returns (io_names, {service: helper_names}).
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"""
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exprs = _get_parse_all()(source)
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io_names: set[str] = set()
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helpers: dict[str, set[str]] = {}
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for expr in exprs:
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if not isinstance(expr, list) or not expr:
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continue
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head = expr[0]
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if not isinstance(head, Symbol):
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continue
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if head.name == "define-io-primitive":
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name = expr[1]
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if isinstance(name, str):
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io_names.add(name)
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elif head.name == "define-page-helper":
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name = expr[1]
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service = _extract_keyword_arg(expr, "service")
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if isinstance(name, str) and isinstance(service, str):
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helpers.setdefault(service, set()).add(name)
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return io_names, helpers
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def _find_service_boundary_files() -> list[str]:
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"""Find service boundary.sx files.
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Dev: {project}/{service}/sx/boundary.sx (e.g. blog/sx/boundary.sx)
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Docker: /app/sx/boundary.sx (service's sx/ dir copied directly into /app/)
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"""
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root = _project_root()
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files: list[str] = []
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# Dev layout: {root}/{service}/sx/boundary.sx
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for f in glob.glob(os.path.join(root, "*/sx/boundary.sx")):
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if "/shared/" not in f:
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files.append(f)
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# Docker layout: service's sx/ dir is at {root}/sx/boundary.sx
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docker_path = os.path.join(root, "sx", "boundary.sx")
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if os.path.exists(docker_path) and docker_path not in files:
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files.append(docker_path)
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return files
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# ---------------------------------------------------------------------------
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# Public API
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# ---------------------------------------------------------------------------
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def parse_primitives_sx() -> frozenset[str]:
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"""Parse primitives.sx and return frozenset of declared pure primitive names."""
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by_module = parse_primitives_by_module()
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all_names: set[str] = set()
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for names in by_module.values():
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all_names.update(names)
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return frozenset(all_names)
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def parse_primitives_by_module() -> dict[str, frozenset[str]]:
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"""Parse primitives.sx and return primitives grouped by module."""
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source = _read_file("primitives.sx")
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exprs = _get_parse_all()(source)
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modules: dict[str, set[str]] = {}
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current_module = "_unscoped"
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for expr in exprs:
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if not isinstance(expr, list) or len(expr) < 2:
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continue
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if not isinstance(expr[0], Symbol):
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continue
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if expr[0].name == "define-module":
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mod_name = expr[1]
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if isinstance(mod_name, Keyword):
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current_module = mod_name.name
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elif isinstance(mod_name, str):
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current_module = mod_name
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elif expr[0].name == "define-primitive":
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name = expr[1]
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if isinstance(name, str):
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modules.setdefault(current_module, set()).add(name)
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return {mod: frozenset(names) for mod, names in modules.items()}
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def _parse_param_type(param) -> tuple[str, str | None, bool]:
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"""Parse a single param entry from a :params list.
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Returns (name, type_or_none, is_rest).
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A bare symbol like ``x`` → ("x", None, False).
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A typed form ``(x :as number)`` → ("x", "number", False).
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The ``&rest`` marker is tracked externally.
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"""
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if isinstance(param, Symbol):
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return (param.name, None, False)
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if isinstance(param, list) and len(param) == 3:
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# (name :as type)
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name_sym, kw, type_val = param
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if (isinstance(name_sym, Symbol)
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and isinstance(kw, Keyword) and kw.name == "as"):
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type_str = type_val.name if isinstance(type_val, Symbol) else str(type_val)
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return (name_sym.name, type_str, False)
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return (str(param), None, False)
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def parse_primitive_param_types() -> dict[str, dict]:
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"""Parse primitives.sx and extract param type info for each primitive.
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Returns a dict mapping primitive name to param type descriptor::
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{
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"+": {"positional": [], "rest_type": "number"},
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"/": {"positional": [("a", "number"), ("b", "number")], "rest_type": None},
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"get": {"positional": [("coll", None), ("key", None)], "rest_type": None},
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}
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Each positional entry is (name, type_or_none). rest_type is the
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type of the &rest parameter (or None if no &rest, or None if untyped &rest).
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"""
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source = _read_file("primitives.sx")
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exprs = _get_parse_all()(source)
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result: dict[str, dict] = {}
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for expr in exprs:
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if not isinstance(expr, list) or len(expr) < 2:
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continue
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if not isinstance(expr[0], Symbol) or expr[0].name != "define-primitive":
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continue
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name = expr[1]
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if not isinstance(name, str):
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continue
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params_list = _extract_keyword_arg(expr, "params")
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if not isinstance(params_list, list):
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continue
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positional: list[tuple[str, str | None]] = []
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rest_type: str | None = None
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i = 0
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while i < len(params_list):
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item = params_list[i]
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if isinstance(item, Symbol) and item.name == "&rest":
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# Next item is the rest param
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if i + 1 < len(params_list):
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rname, rtype, _ = _parse_param_type(params_list[i + 1])
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rest_type = rtype
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i += 2
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else:
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pname, ptype, _ = _parse_param_type(item)
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if pname != "&rest":
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positional.append((pname, ptype))
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i += 1
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# Only store if at least one param has a type
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has_types = rest_type is not None or any(t is not None for _, t in positional)
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if has_types:
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result[name] = {"positional": positional, "rest_type": rest_type}
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return result
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def parse_boundary_sx() -> tuple[frozenset[str], dict[str, frozenset[str]]]:
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"""Parse all boundary sources and return (io_names, {service: helper_names}).
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Loads three tiers:
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1. boundary.sx — core language I/O
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2. boundary-app.sx — deployment-specific I/O
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3. {service}/sx/boundary.sx — per-service page helpers
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"""
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all_io: set[str] = set()
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all_helpers: dict[str, set[str]] = {}
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def _merge(source: str, label: str) -> None:
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io_names, helpers = _extract_declarations(source)
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all_io.update(io_names)
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for svc, names in helpers.items():
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all_helpers.setdefault(svc, set()).update(names)
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logger.debug("Boundary %s: %d io, %d helpers", label, len(io_names), sum(len(v) for v in helpers.values()))
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# 1. Core language contract
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_merge(_read_file("boundary.sx"), "core")
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# 2. Deployment-specific I/O
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app_path = os.path.join(_ref_dir(), "boundary-app.sx")
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if os.path.exists(app_path):
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_merge(_read_file("boundary-app.sx"), "app")
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# 3. Per-service boundary files
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for filepath in _find_service_boundary_files():
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try:
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_merge(_read_file_path(filepath), filepath)
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except Exception as e:
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logger.warning("Failed to parse %s: %s", filepath, e)
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frozen_helpers = {svc: frozenset(names) for svc, names in all_helpers.items()}
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return frozenset(all_io), frozen_helpers
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def parse_boundary_effects() -> dict[str, list[str]]:
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"""Parse boundary.sx and return effect annotations for all declared primitives.
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Returns a dict mapping primitive name to its declared effects list.
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E.g. {"current-user": ["io"], "reset!": ["mutation"], "signal": []}.
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Only includes primitives that have an explicit :effects declaration.
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Pure primitives from primitives.sx are not included (they have no effects).
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"""
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source = _read_file("boundary.sx")
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exprs = _get_parse_all()(source)
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result: dict[str, list[str]] = {}
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_DECL_FORMS = {
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"define-io-primitive", "declare-signal-primitive",
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"declare-spread-primitive",
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}
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for expr in exprs:
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if not isinstance(expr, list) or len(expr) < 2:
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continue
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head = expr[0]
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if not isinstance(head, Symbol) or head.name not in _DECL_FORMS:
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continue
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name = expr[1]
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if not isinstance(name, str):
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continue
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effects_val = _extract_keyword_arg(expr, "effects")
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if effects_val is None:
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# IO primitives default to [io] if no explicit :effects
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if head.name == "define-io-primitive":
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result[name] = ["io"]
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continue
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if isinstance(effects_val, list):
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effect_names = []
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for item in effects_val:
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if isinstance(item, Symbol):
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effect_names.append(item.name)
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elif isinstance(item, str):
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effect_names.append(item)
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result[name] = effect_names
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else:
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# Might be a single symbol
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if isinstance(effects_val, Symbol):
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result[name] = [effects_val.name]
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return result
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def parse_boundary_types() -> frozenset[str]:
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"""Parse boundary.sx and return the declared boundary type names."""
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source = _read_file("boundary.sx")
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exprs = _get_parse_all()(source)
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for expr in exprs:
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if (isinstance(expr, list) and len(expr) >= 2
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and isinstance(expr[0], Symbol)
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and expr[0].name == "define-boundary-types"):
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type_list = expr[1]
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if isinstance(type_list, list):
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return frozenset(
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item for item in type_list
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if isinstance(item, str)
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)
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return frozenset()
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