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{"type":"item.completed","item":{"id":"item_0","type":"agent_message","text":"=== BEGIN ARTIFACT FEATURE-Conditionals-And-Exception-Flow.md ===\n# FEATURE: Conditionals and Exception Flow\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Implements jq conditional branching, try/catch handling, and optional error suppression. |\n| Depends On  | FEATURE-Errors-And-Optional-Evaluation.md, FEATURE-Truthiness-And-Comparison.md, FEATURE-Boolean-And-Alternative-Operators.md |\n| Provides    | if/then/elif/else/end, try/catch, optional filter operator |\n| Consumes    | jq truthiness, runtime error flow, generator evaluation |\n\n## Intent\n\nImplement control flow over jq generator streams. Conditions may produce multiple values, and each truthy or falsey result selects its corresponding branch independently.\n\n## Behavior\n\n- `if A then B else C end` evaluates branches for each output of `A`.\n- Missing `else` defaults to identity.\n- `elif` chains preserve jq branch ordering and fallback behavior.\n- `try EXP catch HANDLER` catches runtime errors and evaluates the handler with the error value.\n- `try EXP` suppresses errors and produces no replacement output.\n- `EXP?` is equivalent to `try EXP`.\n- Outputs produced before an uncaught runtime error remain available to the process boundary.\n\n## Programmatic Acceptance\n\n=== AC flow-003-conformance ===\nIntent: The conditional and exception-flow implementation passes every selected conformance case containing the owned syntax.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"\\bif\\b|\\btry\\b|\\?\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0\nassert summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC flow-003-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Preserve partial output before runtime failure.\n- Catch only runtime errors within the protected expression.\n- Keep compile failures distinct from runtime failures.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Conformance-Asset-Staging.md ===\n# FEATURE: Conformance Asset Staging\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Stage and validate the immutable jq conformance assets required by the build. |\n| Depends On  | — |\n| Provides    | staged sources/* assets, parsed corpus and exclusions |\n| Consumes    | — |\n\n## Purpose\n\nMake the supplied manual, corpus, parser and lexer references, builtin reference, exclusions, runner, and full-test script available under `sources/` in the application root without modification.\n\n## Behavior\n\n- All imported source assets are copied byte-for-byte to their declared `sources/` paths.\n- The supplied harness imports successfully.\n- The corpus parses into its authoritative case set.\n- Every exclusion matches at least one corpus case.\n- This story validates staging only and does not execute candidate conformance cases.\n\n## Programmatic Acceptance\n\n=== AC staging-assets ===\nIntent: The staged harness parses the corpus and applies every declared exclusion successfully.\nimport sys\n\nsys.path.insert(0, \"sources\")\nimport run_conformance as harness\n\ncases = harness.parse_corpus(harness.CORPUS.read_text(encoding=\"utf-8\"))\nexcluded = harness.apply_exclusions(\n    cases,\n    harness.parse_exclusions(harness.EXCLUSIONS),\n)\nassert len(cases) == 550\nassert len(excluded) == 13\n=== END AC staging-assets ===\n\n=== AC staging-harness-import ===\nIntent: The staged harness exposes the required corpus and exclusion paths.\nfrom pathlib import Path\nimport sys\n\nsys.path.insert(0, \"sources\")\nimport run_conformance as harness\n\nassert harness.CORPUS.is_file()\nassert harness.EXCLUSIONS.is_file()\nassert Path(\"sources/full_test.sh\").is_file()\nassert Path(\"sources/jq.test\").is_file()\n=== END AC staging-harness-import ===\n\n=== AC staging-readonly-assets ===\nIntent: The staged scoring assets retain their required executable and readable forms.\nfrom pathlib import Path\n\nassert Path(\"sources/full_test.sh\").stat().st_mode & 0o111\nassert Path(\"sources/run_conformance.py\").read_text(encoding=\"utf-8\")\nassert Path(\"sources/jq-manual.txt\").read_text(encoding=\"utf-8\")\nassert Path(\"sources/parser.y\").read_text(encoding=\"utf-8\")\nassert Path(\"sources/lexer.l\").read_text(encoding=\"utf-8\")\n=== END AC staging-readonly-assets ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Never modify, trim, regenerate, or substitute any file under `sources/`.\n- Do not launch the conformance harness from this staging story.\n- Preserve the supplied corpus and exclusion data verbatim.\n- The staged assets are read-only scoring inputs.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Date-And-Time-Filters.md ===\n# FEATURE: Date and Time Filters\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Implement jq date conversion and broken-down time filters. |\n| Depends On  | FEATURE-Type-And-Numeric-Primitives.md, FEATURE-String-Manipulation.md |\n| Provides    | fromdate, todate, fromdateiso8601, todateiso8601, strptime, strftime, strflocaltime, gmtime, localtime, mktime |\n| Consumes    | numeric values, strings, standard-library date and time facilities |\n\n## Intent\n\nImplement the supplied UTC ISO-8601 conversions and low-level date/time filters. Represent broken-down times in jq's documented array form and preserve the standard-library behavior required by the corpus.\n\n## Programmatic Acceptance\n\n=== AC text-004-conformance ===\nIntent: The implementation passes the authoritative date and time corpus slice.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nSELECT = r\"\\b(date|strftime|strptime|gmtime|localtime|mktime|fromdate|todate)\\b\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", SELECT, \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0\nassert summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC text-004-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Date operations must not require network access or third-party packages.\n- UTC behavior must remain deterministic for ISO conversions.\n- Do not modify the supplied corpus or harness.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Declarations-And-Control-Syntax.md ===\n# FEATURE: Declarations and Control Syntax\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Parse jq declarations, control constructs, bindings, module grammar, and destructuring syntax. |\n| Depends On  | FEATURE-Filter-Grammar.md |\n| Provides    | def, module and import grammar, conditionals, try/catch, reductions, foreach, labels, and patterns |\n| Consumes    | jq filter grammar, lexer, interpreter architecture |\n\n## Scope\n\nThe front end shall parse function definitions, module and import directives, conditionals, exception flow, reductions, foreach, labels, variable bindings, and destructuring patterns. Module syntax shall be validated sufficiently to reject invalid metadata and paths without loading excluded module fixtures.\n\n## Programmatic Acceptance\n\n=== AC declarations-control-conformance ===\nIntent: The authoritative corpus slice exercising declarations, control syntax, bindings, reductions, foreach, labels, and module grammar executes and passes with no failures or errors.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"%%FAIL|\\bif\\b|\\btry\\b|\\breduce\\b|\\bforeach\\b|\\bdef\\b| as |\\blabel\\b|\\bmodule\\b|\\binclude\\b\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC declarations-control-conformance ===\n\n=== AC declarations-compile-rejections ===\nIntent: The selected invalid declaration and control programs are rejected as compile failures by the authoritative harness.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"%%FAIL|\\bmodule\\b|\\binclude\\b|\\blabel\\b|\\bdef\\b\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0 and summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC declarations-compile-rejections ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Invalid module metadata, import paths, and unresolved labels must fail at compile time.\n- Module grammar validation must not access excluded module fixtures.\n- Preserve lexical scope and declaration ordering for later evaluation.\n=== END ARTIFACT ===\n=== BEGIN ARTIFACT FEATURE-Deletion-And-Assignment.md ===\n# FEATURE: Deletion And Assignment\n\n| Field       | Value |\n|-------------|-------|\n| Version     | 20260822 V1 |\n| Description | Defines jq deletion, plain assignment, update assignment, and arithmetic assignment. |\n| Depends On  | FEATURE-Path-Primitives.md, FEATURE-Arithmetic-And-Structural-Operators.md, FEATURE-Boolean-And-Alternative-Operators.md |\n| Provides    | del, =, |=, +=, -=, *=, /=, %=, //= |\n| Consumes    | Path primitives, arithmetic operators, generator evaluation |\n\n## Purpose\n\nImplement jq's immutable path-based mutation operators and deletion behavior.\n\n## Implementation Requirements\n\n- Implement `del(path-expression)`.\n- Implement plain assignment with all values produced by the right-hand side.\n- Implement update assignment using the selected path value as the update input.\n- Implement arithmetic and defined-or assignment operators.\n- Support multiple paths and generator-valued left-hand sides.\n- Delete paths when an update expression produces `empty`.\n- Preserve the original input for sibling expressions evaluated after an assignment.\n- Use the first update result for `|=` as specified.\n\n## Programmatic Acceptance\n\n=== AC deletion-assignment-conformance ===\nIntent: The authoritative corpus slice covering deletion and assignment operators executes and passes.\nSuite: scoped\nRequires: executable=python3; scope=test\n\nimport json\nimport os\nimport subprocess\nimport sys\n\nselect = r\"\\bdel\\(|\\|=|\\+=|-=|\\*=|/=|%=|//=\"\nresult = subprocess.run(\n    [sys.executable, \"sources/run_conformance.py\", \"--select\", select, \"--json\"],\n    capture_output=True,\n    text=True,\n    env={**os.environ, \"JQ\": f\"{os.getcwd()}/jq\"},\n)\nprint(result.stdout)\nprint(result.stderr, file=sys.stderr)\nreport = json.loads(result.stdout)\nsummary = report[\"summary\"]\nassert sum(summary.values()) > 0\nassert summary[\"fail\"] == 0\nassert summary[\"error\"] == 0\nassert result.returncode == 0\n=== END AC deletion-assignment-conformance ===\n\n## User Acceptance\n\n- None.\n\n## Guardrails\n\n- Treat jq values as immutable.\n- Do not apply plain-assignment RHS filters to the selected path value.\n- Do not use the last update result for `|=`.\n- Do not leak mutations into sibling outputs or later evaluations of the original input.\n=== END ARTIFACT ==="}}
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