0fc7b082b2fcfba8e1c23b4566d3597e486e0c7a
45 Commits
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fd259048da |
grammar: admit WITH inside subqueries / CTE bodies (ADR-0032 §10.3)
ADR-0032 §10.3 says cte_bindings lives on the scope frame, with inner subqueries free to declare their own CTEs that shadow outer ones. The grammar didn't actually admit nested WITH inside SQL_SELECT_COMPOUND — a real ADR-vs-implementation gap. Closes the gap by making SQL_SELECT_COMPOUND a Choice between a WITH-prefixed form and a plain form. The naive Optional-prefix approach silently broke the paren-vs-subquery dispatch in sql_expr.rs's PAREN_GROUP: Optional matches 0 bytes, committing the Seq, so SELECT_CORE's NoMatch on `(a + b)` became Failed and the Choice couldn't fall through to or_expr. The Choice-fronted form keeps the fast NoMatch on non-WITH non-SELECT first tokens. Side effect: scalar subquery / IN / EXISTS / derived-table bodies now admit a leading WITH too, which matches standard SQL. Updated two tests that were guarding the old `(WITH …)` rejection behavior. Added one new harvest test exercising nested-WITH inside a CTE body — the harvest's `expand_binding` mechanism already handled the data correctly; the grammar gap was the sole blocker. Test totals: 1414 → 1415 passing (+1 nested-with-in-cte test). Clippy clean. |
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c5cf03b152 |
walker: SQL diagnostics — multi-binding scope, qualified refs, Phase-1 gap closure (sub-phase 2d)
Implements the bulk of ADR-0032 §11 diagnostics. The
schema-existence pass becomes multi-binding-aware; the SQL
predicate-warning pass closes the Phase-1 carry-over gap
named in §11.6; pre-flight duplicate-CTE detection lands
(user-approved Plan §Open-2); a `data::WITH` CommandNode
makes WITH-prefixed statements dispatch through the registry.
Catalog (`src/friendly/strings/en-US.yaml`, `src/friendly/keys.rs`):
- Six new `diagnostic.*` keys: ambiguous_column,
compound_arity_mismatch, cte_arity_mismatch, duplicate_cte,
projection_alias_misplaced, unknown_qualifier.
- Eight new `engine.*` translation keys (ADR-0032 §11.5) for
the friendly-error layer to render engine messages in
engine-neutral wording. The catalog entries are authored;
wiring them into the engine-error path is deferred (the
friendly layer reads these by key when reached).
Schema-existence diagnostic (`schema_existence_diagnostics`)
extended per ADR-0032 §11.2:
- A pre-pass collects all `table_name` / `cte_name` / table-
alias idents into a `PassBinding` vec + a CTE name list,
sidestepping the projection-before-FROM ordering problem
(§10.6). The main pass then resolves identifiers against the
complete scope.
- Bare column references resolve against any binding's
columns. Zero matches → `diagnostic.unknown_column` (the
table arg lists all in-scope tables in the multi-binding
case). Two-or-more matches → `diagnostic.ambiguous_column`.
- Qualified `t.c` refs detect their qualifier via a look-ahead
on the matched path (Punct '.' + Ident{role:
sql_expr_qualified_ref} after the leading Ident). Unknown
qualifier → `diagnostic.unknown_qualifier`; the column check
then runs against the resolved binding's table.
- The `t.*` qualified-wildcard's `qualified_star_qualifier`
ident also resolves through the same pass.
- CTE-name references in table-source slots accept silently
(the CTE binding's columns are unknown until the deferred
§10.3 stage-2 harvest lands, so bare column refs into a
CTE binding short-circuit to "accept silently").
- Duplicate CTE names in the same `WITH` block emit
`diagnostic.duplicate_cte` on the second occurrence
(Plan §Open-2).
Phase-1 gap closure (`sql_predicate_warnings`, ADR-0032 §11.6):
A new MatchedPath-walking pass that identifies predicate-tail
shapes by node-name labels and emits the same `diagnostic.*`
keys the DSL `Expr` AST pass already emitted (`eq_null`,
`like_numeric`, `type_mismatch`). Scoped to bare column refs
in `<column> <op> <literal>` form — qualified-ref and
expression-operand cases stay un-flagged in this minimal pass,
which is a safe false-negative posture (the warning is
advisory; the engine still runs). Runs alongside the schema-
existence pass on every successful SQL parse — WHERE,
HAVING, JOIN ON, projection, ORDER BY all get warnings
uniformly. Tests cover all three keys plus the negative
"compatible types don't warn" case.
WITH dispatch (`data::WITH`):
`with x as (…) select * from x` now dispatches via the registry
with entry word `with`. Shape: `SQL_WITH_TAIL`, the post-`WITH`
portion of a statement (optional `RECURSIVE`, the cte_def
list, the trailing compound_select, optional `;`). Both
`data::SELECT` and `data::WITH` route to `build_select` and
produce `Command::Select { sql: source }` — execution is
grammar-as-text, so the entry-word split doesn't fork the
exec path. `is_advanced_only` extended to include `with`.
Deferred per the 2d-scoped DA review (documented as a
`(TBD)` in the cross-cut matrix for 2g):
- `diagnostic.projection_alias_misplaced` — requires clause
detection (the matched-path is flat).
- `diagnostic.compound_arity_mismatch` — needs per-leg
projection counting.
- `diagnostic.cte_arity_mismatch` — depends on §10.3 stage-2
harvest, which 2b deferred.
- `engine.*` key wiring into the friendly-error layer — the
catalog entries are authored; the engine-error path reads
them by key when reached, but no proactive enhancement of
the layer here.
Test totals: 1366 → 1382 passing (+16: 10 schema-existence
multi-binding + diagnostic tests, 7 Phase-1 gap closure
tests, minus duplicates from prior runs), 0 failed, 1 ignored.
Clippy clean.
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a491df32a0 |
grammar: migrate Phase-1 SELECT to the ADR-0032 fragment (sub-phase 2c)
The Phase-1 SQL `SELECT` grammar nodes that used to live in `src/dsl/grammar/data.rs` retire — 22 statics / consts and the `reject_internal_table` validator copy are removed, ~150 lines of grammar machinery gone. `data::SELECT.shape` now references the post-`SELECT` portion of the ADR-0032 fragment via a thin `Node::Subgrammar(&sql_select::SQL_SELECT_TAIL)`. `SQL_SELECT_TAIL` is a new export from `sql_select.rs`, parallel to `SQL_SELECT_STATEMENT`. It represents what a top-level `SELECT` statement looks like AFTER the registry's entry-word dispatch has already consumed the leading `SELECT` keyword: the DISTINCT/ALL prefix, projection list, optional FROM / WHERE / GROUP BY / HAVING, the compound set-op chain (each subsequent leg's `SELECT` is part of `SET_OP_TAIL`), outer ORDER BY / LIMIT, and a tolerated trailing `;`. WITH-prefixed statements (`WITH x AS (…) SELECT * FROM x`) are NOT in 2c's scope — they need a separate `data::WITH` `CommandNode` so the entry-word dispatch routes correctly. For now, top-level WITH continues to fall through to the chumsky parser route (the same as in Phase 1). The `SQL_SELECT_STATEMENT` static (which includes the optional WITH prefix) stays available for use by that future CommandNode or by any other consumer that needs the full statement shape. All seven Phase-1 SQL `SELECT` integration tests (`tests/sql_select.rs`) pass without modification, satisfying the 2c exit gate's "behaviour preserved" requirement. The 70 fragment unit tests and the 26 driver-level scope tests also pass — the migration is a refactor, no new tests required. Behaviour change explicitly sanctioned by ADR-0032 §8: Phase-1's `LIMIT_VALIDATOR` (positive-int-only, parse-time) is superseded by the full `sql_expr` admission. `LIMIT max(10, x)` and similar now parse; the engine constrains the value at execution time per the ADR's "grammar admits, engine rejects" posture. Plan §2b status note: the 2026-05-20 deferral of §10.3 stage 2 (CTE output-column harvest derivation) is recorded in `docs/plans/20260520-adr-0032-phase-2.md` per the user-approved deferral. Test totals: 1366 passing (unchanged), 0 failed, 1 ignored. Clippy clean. data.rs loses ~150 lines of dead grammar; the single source of truth for the SQL `SELECT` shape is now `sql_select.rs`. |
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4ff054ca75 |
walker: populate cte_bindings placeholders + projection_aliases (ADR-0032 §10.3 stage 1 / §10.4)
Sub-phase 2b checkpoints 4 and 5 combined — adds the placeholder CTE binding push (§10.3 stage 1) and the projection alias accumulator (§10.4). Node::Ident gains two more flags, mechanically applied to every existing site: - `writes_cte_name: bool` — push a placeholder `CteBinding` (name only, empty columns) onto the top `ScopeFrame`'s `cte_bindings`. Set on `CTE_NAME_IDENT` in sql_select.rs. Fires BEFORE the body's `ScopedSubgrammar` enters (the CTE-def Seq's ident slot precedes the body's `(`), so the body can self-reference the CTE name as a valid table source (WITH RECURSIVE). - `writes_projection_alias: bool` — append the matched name to the top frame's `projection_aliases`. Set on `PROJECTION_BARE_ALIAS_IDENT` so both the AS-form (`a AS alpha`) and bare-form (`a alpha`) paths capture cleanly. The ident is shared by both paths through `PROJECTION_AS_ALIAS` and the lookahead factory, so capturing on the ident itself covers both forms with no duplication. The §10.3 stage-2 harvest (deriving CTE output columns from the body's projection per the six derivation rules in the ADR's table) is structurally deferred — the placeholder's `columns` stays empty until the harvest is wired. This is intentional scope honesty: the placeholder-name presence is sufficient for the schema-existence diagnostic (2d) to recognize CTE names as valid table sources, and the qualified-prefix completion (2e) will populate the columns when the harvest hook is added there. Tests below assert the placeholder-name behavior; the column-derivation tests from plan §2b's exit gate will be satisfied incrementally as later sub-phases need them. Tests (8 new, all green): - Single CTE → one placeholder binding with the matched name. - Multiple CTEs → placeholders in declaration order. - Recursive CTE → name visible inside body (the body's `from r` reference parses; verified by the walk completing). - Projection aliases via AS form → captured into the top frame's `projection_aliases`. - Projection aliases via bare form → captured. - Mixed alias forms → captured in projection order, with unaliased projection items absent from the alias list. - No aliases → empty `projection_aliases`. - CTE body aliases do not leak to outer scope (the body's frame pops on `ScopedSubgrammar` exit, taking its projection_aliases with it). All 1358 previous tests still pass. Test totals: 1366 passing, 0 failed, 1 ignored. Clippy clean. This closes out the scope-accumulator side of sub-phase 2b. The remaining 2b-style work — full CTE column-derivation harvest per §10.3's six rules — folds into 2d (where the arity-check pass needs declared-vs-derived column counts) and 2e (where qualified-prefix completion needs CTE columns). |
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b522d09f5a |
walker: populate from_scope table bindings (ADR-0032 §10.1)
Sub-phase 2b checkpoint 3 — the `writes_table` / `writes_table_alias` flags now drive the multi-binding `from_scope` accumulator on the top `ScopeFrame`. Node::Ident gains `writes_table_alias: bool`. When set on an ident-name slot, the matched name lands on the most-recently- pushed `TableBinding`'s `alias`. All 46 existing Ident sites across the codebase are updated to `writes_table_alias: false` (mechanical — no behavioral change for DSL paths). walk_ident's `writes_table` semantics extend: - `IdentSource::Tables` matches with `writes_table: true` still populate `current_table` / `current_table_columns` as before (preserved for DSL paths that read those fields directly via the dynamic-subgrammar / column-writes machinery), AND now also push a fresh `TableBinding` onto the top ScopeFrame's `from_scope`. The two mechanisms coexist additively — current_table reflects the most-recent `writes_table` write (single-binding view, as before); from_scope is the authoritative multi-binding accumulator that SQL JOINs, subqueries, and CTE bodies use. sql_select.rs splits the alias slot into two ident variants: - `PROJECTION_BARE_ALIAS_IDENT` (role `projection_alias`) — no scope writes; capture into `projection_aliases` is 2b-5. - `TABLE_SOURCE_BARE_ALIAS_IDENT` (role `table_alias`, `writes_table_alias: true`) — sets the top binding's alias. The `AS alias` form likewise splits into PROJECTION_AS_ALIAS and TABLE_SOURCE_AS_ALIAS so each path threads through the correct ident. The bare-alias lookahead factories return the projection or table-source ident accordingly. `TABLE_NAME_IDENT` in sql_select.rs gets `writes_table: true` so each FROM / JOIN table source pushes a binding. The schema-resolved columns are stored on the TableBinding for later use by qualified-prefix completion (2e) and the schema-existence diagnostic (2d). Tests (9 new, all green): - single from-table → one binding - AS alias / bare alias on from-table → alias captured - two-way JOIN → two bindings, correct order - two-way JOIN with both aliased → two bindings with aliases - three-way JOIN (left + bare) → three bindings in order - subquery from_scope does not leak to outer scope (the ScopedSubgrammar push/pop discipline at work) - CTE body from_scope does not leak to outer scope (the outer scope sees only the CTE-name reference, not the body's internals) - SELECT without FROM → empty from_scope All 1351 previous tests still pass — DSL paths untouched. Test totals: 1358 passing, 0 failed, 1 ignored. Clippy clean. Frame is_cte_body marker, body-projection harvest, and projection_aliases population are the remaining 2b work (2b-4 and 2b-5). |
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98a74b23d3 |
grammar: sql_expr additive extensions for §5/§6, CTE body rewires to ScopedSubgrammar
Sub-phase 2b checkpoint 2 — closes the recursion loop between sql_expr.rs and sql_select.rs so subquery expressions and qualified column refs become structurally valid in every SQL context where they belong. sql_expr.rs: - §5 qualified-ref tail. `name_or_call` gains a `.identifier` suffix as a Choice sibling of the function-call `(args)` tail. The leading identifier is still matched once (per ADR-0031 §1's factoring); the optional tail dispatches between the two suffixes by their first character (`.` vs `(`). - §6.1 scalar subquery as primary. The `(or_expr)` and `(SELECT …)` branches share the leading `(`; the first inside token (`SELECT` → subquery, anything else → expression) discriminates. The subquery recurses through `Node::ScopedSubgrammar(&sql_select::SQL_SELECT_COMPOUND)`. - §6.2 IN (subquery) predicate. Sibling of the existing IN-value-list; same `(` factoring, same dispatch. - §6.3 [NOT] EXISTS primary. Bare `EXISTS (compound_select)` lives in `primary`; `NOT EXISTS` falls out via the existing `not_expr := NOT not_expr` tier above `primary`. sql_select.rs: - CTE body recursion rewires `Node::Subgrammar` → `Node::ScopedSubgrammar`, matching §10.2. The top-level statement's COMPOUND embedding stays plain Subgrammar — the implicit bottom frame is the right scope for a statement- level SELECT. Structural side-effect — const-eval cycle workaround: Closing the sql_expr ⇄ sql_select reference loop made Rust's const-evaluator follow the cycle through every `const Node` that transitively reaches it. Mirroring sql_expr.rs's existing pattern, composition Nodes in sql_select.rs (Seq / Choice / Optional / Repeated / Lookahead) are now `static Node` and appear in slice positions through `Node::Subgrammar(&NAME)` wraps; only leaf items (Punct, Word, Ident) remain `const`. Same workaround applies to data.rs's SELECT_PROJ_LIST / SELECT_PROJECTION chain and the inlined `SQL_EXPR` reference. Statics resolve lazily at link time, so the cycle is valid; const-eval is not, and the named `const SQL_EXPR` alias is gone in both files (replaced with the inline `Node::Subgrammar (&sql_expr::SQL_OR_EXPR)` expression at every use site). Test coverage: - sql_expr.rs gains 11 new tests for qualified refs, scalar subquery, IN-subquery, EXISTS / NOT EXISTS, nested subqueries, and the existing IN-value-list form (regression). - sql_select.rs gains 7 new tests for qualified refs in WHERE, scalar subqueries in WHERE / projection, IN / EXISTS / NOT EXISTS in WHERE, nested subqueries, and qualified refs inside CTE bodies. - All 70 prior sql_select tests still pass; the 2a baseline is preserved. `(WITH x AS (…) SELECT * FROM x)` is explicitly NOT admitted as a scalar subquery — ADR-0032 §1 / §9 wire subqueries to SQL_SELECT_COMPOUND, which omits the outer with_clause. WITH remains a statement-level-only construct. Documented in the relevant test. Test totals: 1333 → 1351 passing, 0 failed, 1 ignored (unchanged). Clippy clean. |
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4f89106a63 |
walker: Node::ScopedSubgrammar variant + scope-frame stack (ADR-0032 §10.2)
Sub-phase 2b checkpoint 1 — adds the foundation for SQL SELECT lexical-scope discipline without changing existing walker semantics. New types in `dsl::walker::context`: - `TableBinding` — one FROM-source binding with table name, optional alias, and schema-resolved columns (§10.1). - `CteBinding` + `CteColumn` — a CTE definition visible from inside its body (WITH RECURSIVE self-reference) and from the outer scope after harvest (§10.3). - `ScopeFrame` — `from_scope`, `cte_bindings`, and `projection_aliases` for one lexical scope. Default-empty; the fields will be populated by later 2b checkpoints. `WalkContext` gains `from_scope_stack: Vec<ScopeFrame>`, initialised with one bottom frame in both `new()` and `with_schema()`. The bottom frame is the implicit top-level scope DSL paths and top-level SQL statements operate in; `Node::ScopedSubgrammar` entries push and pop additional frames on top. `current_table` / `current_table_columns` remain as direct fields for this checkpoint — converting them to derived helpers is a later 2b step. New grammar-tree variant: - `Node::ScopedSubgrammar(&'static Self)` — like `Subgrammar`, but pushes a fresh `ScopeFrame` on entry and pops it on exit (ADR-0032 §10.2). Shares `subgrammar_depth` with the plain Subgrammar variant so the MAX_SUBGRAMMAR_DEPTH = 64 cap fires uniformly across both — §9's "no new walker capability for grammar recursion" claim holds. DSL Expr (ADR-0026) and sql_expr.rs ladder (ADR-0031) recursion continue to use the plain Subgrammar variant and never push a scope. Driver gains a parallel `walk_scoped_subgrammar` arm; the push/pop is unconditional so a speculatively-walked branch a later Choice rolls back leaves the stack clean. Test coverage in `driver.rs`: - A recursive ScopedSubgrammar test grammar walks correctly through depths 0-3. - The depth cap fires the same `expression_too_deep` friendly validation error as for plain Subgrammar. - The bottom frame invariant: `WalkContext::new` seeds exactly one frame, and after a walk the stack is restored. No grammar tree references the new variant yet — the rewire of sql_select.rs CTE bodies and the sql_expr.rs additive extensions for §5/§6 are the next 2b checkpoint. Test totals: 1330 baseline + 3 = 1333 passing, 0 failed, 1 ignored. Clippy clean. |
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8d293358a0 |
grammar: SQL SELECT full statement fragment (ADR-0032 Phase 2a)
Author the standalone walkable shape for the full standard-SQL
SELECT per ADR-0032 §1: compound queries with the four set ops
(UNION / UNION ALL / INTERSECT / EXCEPT), the five JOIN flavours
(INNER / LEFT [OUTER] / RIGHT [OUTER] / FULL [OUTER] / CROSS),
GROUP BY / HAVING, WITH and WITH RECURSIVE common table
expressions, LIMIT … OFFSET, DISTINCT / ALL, qualified-wildcard
`t.*` projection, and bare-alias projection (lifting ADR-0030
Phase-1 §4.2).
Recursion into SQL_SELECT_COMPOUND uses Node::Subgrammar for
2a; sub-phase 2b will rewire those references to the new
Node::ScopedSubgrammar variant for completion-scope discipline
(ADR-0032 §10.2). The Phase-1 data::SELECT CommandNode is not
touched here — the new fragment is reachable only from its own
tests until sub-phase 2c performs the migration.
Two implementation mechanisms realize ADR semantics without
changing them:
- Node::Lookahead disambiguates the projection_item Choice
(bare `*` vs `ident . *` qualified wildcard vs `sql_expr [
alias ]`) and gates bare-alias slots against continuation
keywords. The walker's walk_ident accepts any
identifier-shape token, including keyword-shape ones, and
Choice / Optional are first-match-wins; without lookahead a
bare-alias slot would greedily swallow FROM / WHERE / JOIN /
etc. Per-position follow-sets list which keywords legitimately
follow each alias slot. Same pattern as data.rs's
insert_first_paren precedent.
- INNER JOIN and bare JOIN are split into two distinct Choice
branches (each with a concrete leading keyword) rather than
sharing one Optional(Word("inner"))-leading branch. Avoids a
walker hazard where an Optional-leading-child Seq commits to
idx > 0 and then converts the next child's EOF NoMatch into
Incomplete, blocking the outer Choice from falling through to
later branches. Same semantic surface, distinct mechanism.
The §13 OOS shapes all have explicit reject tests (NATURAL,
USING, comma-FROM, LIMIT m,n, window OVER, VALUES, derived
tables). LATERAL has a noted partial limitation: the comma form
rejects via OOS-3, but the single-keyword form `FROM a LATERAL
JOIN b ON …` is admitted structurally because `lateral` parses
as a bare table-source alias for `a`. This matches ADR-0030's
"grammar admits identifier-shape tokens; engine resolves"
posture.
`__rdbms_*` rejection extends to every Phase-2 table-source
slot — the FROM table, each JOIN's table, each CTE name, and
the FROM inside any CTE body — via the reuseable
reject_internal_table validator.
70 new unit tests in sql_select.rs walk every §1 production and
every OOS reject case. Test totals: 1260 baseline + 70 = 1330
passing, 0 failing, 1 ignored (unchanged from baseline). Clippy
clean.
Per the Phase-2 plan sub-phase 2a exit gate. DA gate written
review: PASS.
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6369066fe4 |
grammar: SQL SELECT end-to-end (ADR-0030 Phase 1)
The first cut of advanced-mode SQL: a `select` line in advanced
mode parses, runs against the database, and renders its rows
through the existing data-table renderer; the same line in
simple mode lights up the precise "this is SQL" hint instead of
running.
Walker mode gate (ADR-0030 §2)
------------------------------
- `WalkContext` gains a `mode: Mode` field; `Mode` derives
`Default` (= `Simple`, matching the app's startup mode).
- `grammar::is_advanced_only` keys an advanced-only entry-word
set (Phase 1: just `select`). When the walker matches an
advanced-only entry word with `ctx.mode == Simple`, it
short-circuits to a `WalkOutcome::ValidationFailed` carrying
the `advanced_mode.sql_in_simple` catalog key — the input
highlights as a keyword, the validity indicator goes ERROR,
and the parse-error layer renders the "switch with `mode
advanced`, or prefix the line with `:`" hint.
- `parser::parse_command_with_schema_in_mode` (and the
schemaless `parse_command_in_mode`) threads the mode into
`WalkContext`; existing `parse_command*` entry points default
to `Mode::Advanced` (most permissive) so back-compat callers
see the full grammar.
- `App::submit` is unified: both modes route through
`dispatch_dsl(&effective_input, effective_mode)`, which now
parses with the line's effective mode. The placeholder
advanced-mode echo branch is gone.
Builder signature sweep (ADR-0031 §2)
-------------------------------------
- `CommandNode.ast_builder` gains a `source: &str` parameter,
forwarded by the walker. `build_select` reads it to put the
validated SQL text into `Command::Select`; the 21 existing
builders accept it as `_source`.
SQL `SELECT` (ADR-0030 §6, ADR-0031)
-------------------------------------
- New `Command::Select { sql: String }` variant. Every
exhaustive `match Command` updated (`verb`, `target_table`,
`build_translate_context`, `execute_command_typed`,
`typing_surface`'s label).
- `grammar::data::SELECT` `CommandNode`: projection (`*` or
`expr [as alias]` list), optional `FROM <table>`, optional
`WHERE`/`ORDER BY`/`LIMIT`, optional trailing `;`. The
expression slots reference the ADR-0031 fragment through
`Subgrammar(&sql_expr::SQL_OR_EXPR)`. The `FROM` table-name
slot carries a `reject_internal_table` validator that
refuses `__rdbms_*` references at parse time.
- The `FROM` clause is optional — `select 1`, `select upper('x')`
(zero-table constant/function-call SELECTs) work alongside
the single-table form. Standard SQL admits them and they are
the canonical learner probe.
- Implicit projection aliasing (`select a x`) is deliberately
unsupported — `from` is a keyword, the bare alias would be
ambiguous; only `select a as x` is admitted.
Worker / runtime
----------------
- `Request::RunSelect { sql, source, reply }` + a new
`Database::run_select` method. `do_run_select_request` runs
the prepared statement, collects rows into a `DataResult`
with `column_types: Vec<None>` (Phase-1 SELECT result columns
carry no playground type per ADR-0030 §6), and appends the
literal source line to `history.log` so replay re-runs it
(ADR-0030 §11).
- `runtime::execute_command_typed` gains a `Command::Select`
arm that calls `database.run_select(sql, src)` and maps to
`CommandOutcome::Query`, which flows into the existing
`AppEvent::DslDataSucceeded` → `render_data_table` path.
Catalog (ADR-0019)
------------------
- `advanced_mode.sql_in_simple` — the walker's gate message.
- `select.internal_table` — the `__rdbms_*` rejection.
- `parse.usage.select` — the parse-error usage template.
Tests
-----
Two `app::tests` cases that pinned the pre-ADR-0030 placeholder
echo are updated to pin the new dispatch contract — both verify
that the advanced-mode `select` (one persistent, one via the
`:` one-shot) produces `ExecuteDsl(Command::Select)` with the
submission's effective mode tagged on the echo. The matching
walking-skeleton test is updated likewise.
A separate follow-up commit lands the ambient mode-threading
(completion / live overlay / validity indicator) so simple-mode
users do not see SQL surfaced through Tab or the live error
overlay either — the dispatch-layer gate landed here is the
behavioural foundation that follow-up builds on. Integration
tests for the full end-to-end land in a third commit.
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c93f9394f5 |
grammar: SQL expression grammar fragment (ADR-0031)
A new `src/dsl/grammar/sql_expr.rs` authored as a parallel fragment to `expr.rs` (the DSL `WHERE` grammar, ADR-0026). The ADR's stratified ladder lands as named `static` `Node`s, one per precedence tier: or_expr → and_expr → not_expr → predicate → additive → multiplicative → unary → primary Recursion through `Node::Subgrammar` reuses ADR-0026's `MAX_SUBGRAMMAR_DEPTH = 64` cap unchanged; no new walker capability is required. `predicate_tail` follows ADR-0026's factoring (shared operand prefix, infix `NOT` as an explicit branch, no `Optional`-first branch) so `Choice` discriminates cleanly. `name_or_call` factors the identifier-prefix shared between column refs and function calls into a single `Ident` followed by an `Optional` `( call_args )` tail — the same hazard-avoidance shape `predicate_tail` uses. The fragment exports `pub static SQL_OR_EXPR` (test entry) and `pub static SQL_EXPRESSION` (drop-in `Subgrammar(&SQL_OR_EXPR)` that SQL `CommandNode` shapes embed in their `Seq`). No AST builder — every Phase-1 consumer (SELECT projection, WHERE) runs validated SQL as text per ADR-0030 §4/§6. 13 unit tests cover every operator and precedence pair, the full predicate set, `CASE` (searched + simple) including `count(*)` and `count(distinct …)`, parenthesised regrouping, case-insensitive keywords, the depth cap, and a representative set of malformed inputs that do *not* walk. Module registered via one new line in `grammar/mod.rs`. |
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abce1188f2 |
constraints: add constraint / drop constraint on existing columns (ADR-0029 §2.2)
Adds the two commands for modifying a column's constraints after creation, completing ADR-0029's §2.2 surface. Grammar (dsl/grammar/ddl.rs): `add constraint <constraint> to <T>.<col>` reuses the §2.1 COLUMN_CONSTRAINT choice; `drop constraint <kind> from <T>.<col>` names only the kind. Both join the `add` / `drop` choices, discriminated by the `constraint` form word. AST (dsl/command.rs): `Command::AddConstraint` / `DropConstraint` plus the `Constraint` / `ConstraintKind` enums. Worker (db.rs): `do_add_constraint` / `do_drop_constraint` apply the change through the rebuild-table primitive. `add` runs the §5 dry-run first — `not null` / `unique` / `check` against a populated column are refused, before any write, with a pretty-printed table of offending rows. §9 redundant-on-PK declarations and §6 `default` on an auto-generated column are friendly refusals; dropping a constraint the column does not carry is likewise refused. Also fixes schema_to_ddl, which suppressed UNIQUE for every PK column — a compound-PK member is not individually unique, so an explicit UNIQUE on it must survive the rebuild. 23 tests added (6 grammar, 17 worker); 3 completion-test and 3 matrix snapshots updated for the new `constraint` subcommand. |
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942222bfc9 |
constraints: CHECK — check (<expr>) at create table & add column (ADR-0029)
The fourth constraint. `check ( <expr> )` reuses the ADR-0026 WHERE-expression grammar via `Subgrammar`, so a check is written in the same language as a `where` filter. - Grammar: a `CHECK_CONSTRAINT` arm joins the shared constraint-suffix Choice; `consume_check_expr` extracts the parenthesised expression (paren-depth aware) into `ColumnSpec.check` / `Command::AddColumn.check`. - Storage: the parsed `Expr` is compiled once to inline SQL (`compile_check_sql` — `compile_expr` + ADR-0028's param-inliner) and stored in that form everywhere — a new `check_expr` column in `__rdbms_playground_columns`, `project.yaml`'s `ColumnSchema.check`, and the column DDL emitted by `do_create_table` / `schema_to_ddl`. - `add column … check` routes through the rebuild primitive (SQLite's `ALTER … ADD COLUMN` cannot carry it); a CHECK on a serial/shortid column is create-table-only and refused at add-column with a friendly message. - `describe` surfaces the CHECK. ADR-0029 §7/§8 updated to the SQL-form decision — double-quoted identifiers, consistent with ADR-0028's `explain` display SQL. 1201 tests pass (+8); clippy clean. |
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58d8958822 |
add column: column constraints — NOT NULL / UNIQUE / DEFAULT (ADR-0029 §6)
`add column` now accepts the shared constraint suffix and the worker honours it — the surface where NOT NULL / UNIQUE actually matter, on non-PK columns. - Grammar: `ADD_COLUMN_NODES` gains the constraint-suffix fragment; `collect_column_constraints` folds it into `Command::AddColumn`. - `do_add_column` routes per ADR-0029 §6: SQLite's `ALTER TABLE ADD COLUMN` cannot express `UNIQUE` and requires a default for `NOT NULL`, so those go through the rebuild primitive (`do_add_constrained_column_via_rebuild`); plain cases keep the ALTER path with the constraint suffix appended. - Pre-flight refusals, before any SQL write: a NOT NULL column with no default added to a populated table; a UNIQUE column with a default added to a multi-row table; a default on a `serial` / `shortid` column. CHECK is still deferred to the next commit. 1193 tests pass (+9); clippy clean. |
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12395a9a6c |
create table: column constraints — NOT NULL / UNIQUE / DEFAULT grammar (ADR-0029)
`create table … with pk` now parses the column-constraint suffix; combined with the commit-1 db layer, a constrained table works end to end. - A shared constraint-suffix grammar fragment — `not null`, `unique`, `default <literal>` — sits after each column's `(type)` group; `build_create_table` walks the matched path per column and folds the constraints into `ColumnSpec`. - §9 redundancy check: every `with pk` column is a primary-key column, so `not null` (any) and `unique` (single-column PK) are rejected with a friendly error (`parse.custom.constraint_redundant_on_pk`). - `project.yaml` round-trip: `ColumnSchema` gains `not_null` / `default`; the YAML reader/writer and `build_read_schema` carry them, so `rebuild` / `export` / `import` preserve constraints. - ADR-0029 §2.1's example corrected — `create table` columns are all PK columns, so its suffix is for `default` / `check`; `docs/simple-mode-limitations.md` records that non-PK columns at create time need advanced mode. CHECK is deferred to the next commit. 1184 tests pass (+7); clippy clean. |
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eff2ee8d14 |
refactor: ColumnSpec / AddColumn carry constraint fields (ADR-0029 scaffolding)
Expand ColumnSpec and Command::AddColumn with the four ADR-0029 constraint slots (not_null, unique, default, check), all defaulting off; `Database::add_column` now takes a ColumnSpec. No behaviour change — the grammar to set the fields and the DDL to enforce them land in the following commits. Isolated here so those commits stay readable. Adds ColumnSpec::new for the unconstrained case; 110 call sites updated. 1172 tests pass; clippy clean. |
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d17addddd7 |
explain: explain command end to end (ADR-0028 steps 2–3)
Add the `explain` prefix command — `explain show data`,
`explain update`, `explain delete` — from grammar through to a
rendered plan tree.
- Grammar: an `EXPLAIN` CommandNode whose shape is a Choice over
the three explainable query shapes, referenced (not
duplicated) through `Subgrammar`. `Command::Explain { query:
Box<Self> }`; `build_show_data` is extracted so the role-based
builders serve both standalone and explain-wrapped commands.
- Worker: SQL construction is split out of do_query_data /
do_update / do_delete into `build_*_sql`, so EXPLAIN QUERY
PLAN runs the exact same statement. `Request::ExplainPlan` /
`do_explain_plan` capture the plan; `QueryPlan` / `ExplainRow`
carry it back. EXPLAIN QUERY PLAN never executes, so
explaining update/delete changes nothing.
- Display SQL: the executed statement with `?N` parameters
inlined as standard-SQL literals via a quote-aware scan.
- Render: `render_explain_plan` draws the box-drawing plan tree
(plain output; ADR-0028 step 4 adds the styled tree).
- Catalog: `parse.usage.explain` and the `help.data.explain`
entry, so `explain` shows up in the in-app `help` listing.
1151 tests pass (+18); clippy clean.
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f239ca5ff4 |
walker: keep optional trailing flags completable after --
Typing `--` to start an optional trailing flag (`--create-fk` on `add 1:n relationship`, `--cascade` on `drop column`, `--force-conversion` / `--dont-convert` on `change column`) made completion go empty: the trailing `--` turns the parse into a trailing-junk Mismatch, and the Mismatch arm of the completion expected-set resolution returned only `[EndOfInput]` — the skipped optional-flag expectations, carried in `tail_expected`, were dropped. completion_probe and expected_at_input now merge `tail_expected` into a Mismatch's expected set. `tail_expected` is empty for a genuine mid-command mismatch, so this only adds the outer shape's skipped trailing optionals — exactly the continuations the trailing `--` is starting to type. This also resolves the "wrong usage hint" symptom: with `--create-fk` offered as a candidate, the hint panel shows candidates instead of falling through to the parse-error usage block. Audit outcome (the requested scan): usage_key_for_input was verified correct for every multi-form command — add / drop / show, including the digit-led `add 1:n relationship` form — and is now regression-locked. The flag-completion fix covers the whole optional-trailing-flag class. 6 tests (3 flag-completion, 3 usage-key). 1131 passing. |
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426e80185f |
command: Operand carries a source span
Each WHERE-expression Operand now records the byte span of the terminal it was built from — the precise per-literal highlight target for an expression WARNING (finishing ADR-0027 §2's highlight/hint wiring). parse_operand captures MatchedItem::span; the RowFilter::eq convenience constructor uses Operand::NO_SPAN. PartialEq is hand-written to ignore the span — it is editor metadata, so Command equality stays whitespace- and position-independent, which the Expr test corpus relies on. No behaviour change; 1100 tests still pass, clippy clean. |
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151ed084a3 |
hint: show the matching usage template for multi-form commands
A parse error in `add index …` showed the `add column` usage: `add` and `drop` are multi-form commands, and both the ambient hint and the submit-time usage block picked the first-listed form unconditionally. New `grammar::usage_key_for_input` disambiguates by the form word after the entry keyword — `column` / `index` / `table` / `relationship`, or the leading digit of `add 1:n …`. The ambient hint now shows that one form; `render_usage_block` shows the committed form's usage and falls back to the whole family only for a bare `add` / `drop` with no form chosen. |
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827b47f88f |
walker: schema-existence ERROR diagnostics (ADR-0027 step B)
`MatchedKind::Ident` now carries its `IdentSource`. A post-walk pass over a structurally-valid parse flags a matched `Tables` ident that is absent from the schema, or a `Columns` ident absent from the table in scope, as an ERROR diagnostic — the command parses but would fail at execution (ADR-0027 §2). New behaviour: an unknown table / column used to parse cleanly and fail only when run. Column scope is resolved by one left-to-right pass over the matched path (every command places its table ident before the columns that belong to it); an unknown table clears the scope, so its columns are not cascaded into a second diagnostic. New catalog keys `diagnostic.unknown_table` / `diagnostic.unknown_column`. |
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a50c6cdf70 |
WHERE expressions: matrix cells + predicate_tail grammar fix (ADR-0026 step 6)
Adds tests/typing_surface/where_expression.rs — 9 matrix cells for the complex WHERE / show-data limit typing surface: operator candidates after an operand, AND / OR after a predicate, NOT, BETWEEN / IN bounds, and `show data` where / limit. Writing the cells surfaced a grammar bug. `predicate_tail`'s `[NOT] negatable` branch started with `Optional(not)`, and an Optional-first `Seq` always "commits" — so on an incomplete input the walker's `Choice` returned that branch's `Incomplete` early and discarded every sibling branch's expected set, dropping `is` and the comparison operators from completion after a column. Fixed by splitting it into explicit `NOT negatable` and bare `negatable` branches — no `predicate_tail` branch starts with an `Optional` now. The matched terminal sequence is unchanged, so `build_expr` is untouched. Docs: ADR-0026 gains an "As-built notes" section recording the option-1 builder realization, its two deviations from the §3 sketch, and the deferral of §7 diagnostic flagging to ADR-0027. requirements.md C5a -> [x] (steps 1-4) with the test baseline refreshed to 1079; CLAUDE.md's deferred list reconciled (C5a implemented; the QA1/QA2 note now points at ADR-0028). |
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f75f71bbe4 |
WHERE expressions: wire into update/delete/show data + SQL gen (ADR-0026 steps 3-4)
Wires the stratified WHERE-expression fragment into the three
filter commands and compiles the resulting Expr to SQL.
Grammar (data.rs): the `update` / `delete` `where` clause is
now the expression fragment (`Subgrammar(&expr::OR_EXPR)`) in
place of the single `col = val` slot; `show data` gains an
optional `where <expr>` and an optional `limit <n>` (a
non-negative integer, validated at parse time). The
expression's right-hand operands are a schema-aware
`DynamicSubgrammar` so the hint panel still narrows to the
left column's type (ADR-0026 §8) — but the inner grammar is
permissive: a type-mismatched literal still parses (§7).
AST: `RowFilter::Where{column,value}` -> `RowFilter::Where(Expr)`;
`ShowData` gains `filter: Option<Expr>` and `limit: Option<u64>`.
A `RowFilter::eq` convenience constructor keeps simple-equality
call sites and tests readable.
SQL (db.rs): `compile_expr` lowers an `Expr` to a
parameterised WHERE — every literal a `?` placeholder,
identifiers `quote_ident`-quoted, `<>` for inequality. A
literal compared against a column binds through that column's
type where compatible and falls back to its syntactic shape on
a mismatch (§7 — permissive). `show data ... limit n` emits
`LIMIT ?` with an implicit primary-key `ORDER BY`, so it is a
stable "first n by primary key".
completion.rs: `invalid_ident_at_cursor` no longer mis-flags a
digit-led literal (`1`) as an unknown column now that the
WHERE operand slot also accepts a column reference; a
`ProseOnly` slot suppresses keyword candidates even when the
expected set also carries a column ident.
11 db integration tests cover AND / OR / NOT, BETWEEN, IN,
LIKE, filtered `show data`, and limit ordering; walker and
expr unit tests cover the parse surface. Type-mismatch /
`= NULL` diagnostic flagging (§7 highlight + hint) is the
remaining ADR-0026 piece.
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59e6a541bf |
grammar: WHERE-expression fragment + Expr AST + build_expr (ADR-0026 step 2)
The stratified WHERE-expression grammar — or / and / not / bool_primary / predicate tiers as named `static` Node fragments, recursing through `Subgrammar`. Covers the six comparison operators (`<>` and `!=` both NotEq), AND / OR / NOT, parentheses, LIKE / IN / BETWEEN with optional infix NOT, and IS [NOT] NULL. `predicate_tail` factors the shared operand prefix and the infix NOT so the Choice branches discriminate on a cleanly-failing first token. New recursive Expr / Predicate / Operand / CompareOp AST in dsl::command. `build_expr` folds the flat matched-terminal slice into an Expr — a deterministic recursive descent mirroring the grammar tiers, with single-child tiers collapsing. Per ADR-0026 §3 option 1: the walker stays a pure structural matcher; Expr is assembled only in this submit-time fold. Fragment + builder are unit-tested standalone (walk against &OR_EXPR, then build_expr); not yet wired into any command. |
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f0b2043a39 |
walker: add Subgrammar node + recursion-depth cap (ADR-0026 step 1)
New `Node::Subgrammar(&'static Node)` variant lets a named static grammar fragment recurse through a reference — `Seq` / `Choice` embed children by value and cannot close a cycle, but a `&'static Node` can point back at an enclosing fragment. This is the mechanism the stratified WHERE-expression grammar (ADR-0026 §2) recurses through. The walker counts active Subgrammar frames in `WalkContext::subgrammar_depth` and refuses past `MAX_SUBGRAMMAR_DEPTH` (64), surfacing a friendly `parse.custom.expression_too_deep` error instead of a stack overflow. Depth is saved/restored per frame so a speculatively-walked-then-rolled-back Choice branch leaves no residue. No grammar references the node yet; covered by walker unit tests with a small recursive `( x )` test grammar. |
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d9a98bbd49 |
Grammar: with-pk column specs use name(type), matching add column
`create table … with pk` parsed column types as `name:type`,
while `add column` uses `name(type)`. Unify on the parens
form so column-type syntax is consistent across the DSL:
create table T with pk id(serial), name(text)
Only `COL_SPEC` changes (`:` → `( … )`); `build_create_table`
reads columns by role, so it is unaffected. The `:` that
separates table from column in `add column` / `drop column`
is unchanged. Sweeps the test suite, the typing-surface
matrix (two `after_colon` cells renamed to `after_paren`,
4 snapshots regenerated), the friendly catalog's usage
templates, ADR-0009's example, and requirements.md.
1039 passing / 0 failing / 1 ignored; clippy clean.
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0dc159fd7e |
Indexes: add index / drop index, persistence, display (ADR-0025)
Implement ADR-0025 — indexes as a DSL DDL feature. - Grammar: `add index [as <name>] on <T> (<cols>)`, `drop index <name>` / `drop index on <T> (<cols>)`, plus a `--cascade` flag on `drop column`. - db.rs: index operations over the engine's native index catalog (no metadata table). The rebuild-table primitive now captures and recreates indexes, so `change column` and the relationship operations no longer silently drop them. - `drop column` refuses an indexed column unless `--cascade`, which drops the covering indexes and reports each. - Persistence: additive `indexes:` list in `project.yaml` (version unchanged); round-trips through rebuild/export/import. - Display: an `Indexes:` section in the structure view and a nested tables/indexes items panel (S2). Reconciles requirements.md (C3 index portion, S2 satisfied) and CLAUDE.md. 1038 tests passing (+31), clippy clean. |
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6d2b92996d |
Grammar: remove the dead CommandNode.hint_mode field
HintMode became per-node (Node::Hinted) in the node-attached refactor; the per-command hint_mode field was never the mechanism and is now read by nothing. Removed the field and its 20 `None` initialisers. |
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03dd9003df |
Help: consume CommandNode.help_id — REGISTRY-driven in-app help
Every CommandNode declared a help_id that nothing read; the in-app `help` body was a single hand-kept catalog block that drifted from the command set (handoff-12 §2.1). note_help now iterates the command REGISTRY and translates each CommandNode's help_id (`help.<id>`), framed by help.intro / help.dsl_section / help.types_reference. A newly-registered command appears in `help` automatically — no edit to note_help or a hand-kept list. Added 20 per-command help entries plus the 3 framing entries; removed help.in_app_body. Per-command entries use block scalars: a libyml 0.0.5 scanner bug panics on long internal space runs in double-quoted scalars, and the entries are space-aligned. |
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90e3f5dbfb |
Insert grammar: Form C type-awareness via lookahead (ADR-0024 §Phase D)
Form C (`insert into T (vals)`) shared the `(` opener with Form A, so its paren was an untyped Repeated(Choice(literal, ident)) — values weren't type- or count-checked at parse time (handoff-12 §2.2). New Node::Lookahead variant: a factory that peeks the source. The insert first-paren factory inspects the first token — a value literal routes the contents through the typed column_value_list (Form B dispatch contract: per-non-auto-column typed slots); an identifier or empty paren routes to a Form A column-name list. So Form C now gets the same per-column typed slots, hints, and parse-time type/count checking Form B has. The explicit-Choice-branch split is impossible here (committed-choice semantics commit after `(` matches); lookahead is the only route, and DynamicSubgrammar factories couldn't see the source. Node::Lookahead is not memoized — its output depends on source — but it returns only a small node (a Repeated, or a thin DynamicSubgrammar wrapper that delegates to the memoized column_value_list). `insert into T (` now cleanly shows Form A column candidates instead of mixed Form-A/C suggestions. Form C matrix tests updated for the type-aware behaviour. |
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911a537a83 |
Walker: node-attached HintMode via Node::Hinted (ADR-0024 §HintMode-per-node)
Replaces the hint resolver's signature-matching (does the expected set
contain all five literal forms? an Ident{NewName}?) with a grammar-
declared annotation. New Node::Hinted { mode, inner } wrapper; the
walker records the mode in WalkContext::pending_hint_mode on entry and
clears it on any successful match (cursor moved past the slot — this
also undoes the leak where a failed Hinted branch of a Choice would
otherwise strand a stale mode). The resolver reads pending_hint_mode
directly.
Value-literal fallback slots carry ProseOnly; NewName ident slots carry
ForceProse. hint_mode_at_input_inner now delegates to
hint_resolution_at_input — one resolution path, no duplicated logic.
No behaviour change; the typing-surface matrix guards it.
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216e7ba61b |
DDL grammar: writes_table on table-name slots for column narrowing
Handoff-12 §2.2: the DDL TABLE_NAME_EXISTING slot and the relationship-endpoint table idents didn't set writes_table, so column-name slots downstream (drop/rename/change column; relationship qualified columns) couldn't narrow to the active table — candidates leaked from every table. Set writes_table: true on TABLE_NAME_EXISTING and on DR_PARENT/DR_CHILD/AR_PARENT/AR_CHILD table idents. The deliberately-documenting completion test now asserts per-table narrowing. |
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0b15ce0306 |
Walker + parser: surface mid-typing after separators and Form C/A ambiguity
The typing-surface matrix exposed two bugs the existing 859-test suite missed: walk_repeated: when the separator consumed but the inner item failed at EOF, the old path rolled the separator back and reported a definite error at the rollback position (`insert into T (a, ` flashed red on the `,` after each comma). Now propagates Incomplete with the inner's expected set so the input renderer treats it as mid-typing. build_insert Form C path: `insert into T (col)` walked to a complete match but produced `values: []` because Form C's value collector drops ident-shaped items. The user almost certainly meant Form A and just hasn't typed `values (...)` yet. Reject with a ValidationError naming the Form-A continuation; classify_input now reports IncompleteAtEof. completion_probe / expected_at_input: ValidationFailed used to return an empty expected set, leaving Tab with nothing to offer at the new Form-A flag point. Now surface result.tail_expected (skipped-Optional expectations captured before validation fired) so `values` is still offered as a candidate. |
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b3f1a20652 |
Phase D: insert value list mirrors do_insert's user_cols contract
Bug: hint at \`insert into Customers values (\` for a Customers
table with id:serial PK suggested typing an integer for \`id\`,
but the dispatch path (\`db::do_insert\`) deliberately doesn't
accept user-supplied values for auto-generated columns in
Form B. The grammar prompted for a value the dispatch would
refuse.
The fix aligns Phase D's \`column_value_list\` dynamic sub-grammar
with do_insert's three forms (ADR-0014 + ADR-0018 §3):
- **Form A** \`insert into <T> (col1, col2, …) values (…)\` —
user explicitly lists columns. Slot list mirrors that
selection; serial / shortid columns CAN appear if the user
lists them.
- **Form B** \`insert into <T> values (…)\` — bare values. Slot
list = non-auto-generated columns of the table in
declaration order. Serial / shortid get auto-filled by the
dispatch; the grammar doesn't prompt for them.
- **Form C** \`insert into <T> (v1, v2, …)\` — bare value list.
Not affected by this change (column_value_list isn't on this
path; Form C's literals route through the schemaless
INSERT_PAREN_LIST).
Implementation:
\`WalkContext.user_listed_columns: Option<Vec<String>>\` — when
\`Some\`, signals Form A; \`None\` is Form B. Populated by walking
the first paren's column-list idents.
\`Node::Ident.writes_user_listed_column: bool\` — new field;
\`true\` on the INSERT_PAREN_ITEM's Ident child. When the
walker matches that ident in Form A, it appends the
schema-canonical column name (case-corrected against the
schema) to user_listed_columns.
\`column_value_list\` factory:
- If user_listed_columns is Some → resolve each name from the
schema; one typed slot per listed column.
- Else → filter current_table_columns to non-auto-generated;
one typed slot per remaining column.
- Empty result → fall back to the schemaless value-literal
list (a serial-only table in Form B has nothing for the
user to type).
Tests:
- New \`phase_d_insert_form_b_skips_serial_column\` confirms the
bug: \`insert into Customers values (1, 'Alice')\` against a
Customers with serial id rejects at parse time (Form B
expects 1 value for Name, not 2).
- New \`phase_d_insert_form_a_accepts_serial_when_listed\`
confirms \`insert into Customers (id, Name) values (1, 'Alice')\`
works.
- New \`phase_d_insert_form_a_filters_to_user_listed_columns\`
confirms partial Form A (\`(Name) values ('Alice')\`).
- Updated \`phase_d_insert_with_schema_accepts_typed_values_per_column\`
to match the new Form B contract (2 user-typed values, not 3).
- Updated typed-hint test matrix split into form-B (8 types)
and form-A (serial / shortid).
- New \`typed_hint_form_b_skips_serial_column_to_generic_or_text_neighbor\`
pins the fallback behavior for a serial-only table.
For the user: \`insert into Customers values (\` for a Customers
with \`(id:serial, Name:text, Email:text)\` now hints
\`for \`Name\`: Type a quoted string …\` (skipping id entirely)
and accepts exactly 2 values. To set the serial explicitly,
use Form A: \`insert into Customers (id, Name, Email) values
(1, 'Alice', 'a@b.c')\`.
Tests: 851 passing, 0 failing, 1 ignored. Clippy clean.
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c485189da8 |
ADR-0024 Phase D: include column name in value-slot hint prose
User-facing improvement: typing into a value slot now surfaces
the column name in the hint. The hint at `insert into Customers
values (` (first column id:int) reads "for `id`: Type an
integer (e.g. 42, -7) or null" instead of the generic
"Type an integer …" prose. After `1, ` the panel updates to
the second column ("for `Name`: Type a quoted string …"). The
same applies to `update T set Email=` and `delete from T where
ts=` — the catalog wrapper threads the column name through.
Implementation:
**`Node::TypedValueSlot.column_name: Option<&'static str>`**
(new field, `src/dsl/grammar/mod.rs`). When `Some`, walker
writes `WalkContext::pending_value_column` on entry; clears
along with `pending_value_type` on inner success.
**Walker driver writes both names** (`src/dsl/walker/driver.rs`):
- `Node::TypedValueSlot` dispatch reads `column_name` and
populates `pending_value_column`.
- `Ident { writes_column: true }` dispatch also writes
`pending_value_column` (using the schema-canonical name when
available, falling back to the user's spelling) so update
set / where positions surface the column name.
**Shared sub-grammars** (`src/dsl/grammar/shared.rs`):
- New `slot_for_column(ty, name)` builds a `TypedValueSlot`
with the embedded leaked column name. Used by
`column_value_list`.
- New `slot_inner_for_type(ty)` returns just the Choice
(without TypedValueSlot wrapper) for slot_for_column to
rebuild.
- `column_value_list` factory now constructs per-column slots
via `slot_for_column(col.user_type, &col.name)`. Each slot
leaks its column name string with the same per-walk Box::leak
pattern the rest of dynamic dispatch uses.
**`WalkContext::pending_value_column: Option<String>`** (new
field, `src/dsl/walker/context.rs`). Pairs with
`pending_value_type` to give the hint resolver both pieces.
**Single-walk hint resolver** (`src/dsl/walker/mod.rs`):
- New `HintResolution { mode: HintMode, column: Option<String> }`
struct.
- New `hint_resolution_at_input(source, schema) -> Option<
HintResolution>` runs one walk and reports both pieces. The
ambient_hint dispatch composes per-column prose from the
result.
- Existing `hint_mode_at_input` / `hint_mode_at_input_with_schema`
preserved as thinner wrappers for tests / future callers
that don't need the column name.
**Catalog wrapper** (`src/friendly/strings/en-US.yaml`,
`src/friendly/keys.rs`):
- New `hint.value_slot_for_column: "for `{column}`: {detail}"`
prefixes the per-type prose with the actual column name when
the walker has it bound. Schemaless fallback continues to use
the generic value-literal prose with no column prefix.
**ambient_hint composes** (`src/input_render.rs`): consults
`hint_resolution_at_input`; when `column` is `Some`, wraps the
type prose through `hint.value_slot_for_column`; otherwise
emits the bare type prose.
Tests (846 total, 0 failing):
- 4 new input_render tests assert column names appear in the
prose at insert/update/where positions plus the
second-insert-value position (proves column tracking advances
with comma).
- All existing tests pass unchanged — the column-name addition
is layered on top of the type-only prose path.
Clippy clean.
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82955679ca |
ADR-0024 Phase D: per-column-type hint prose at value slots
The Phase D commit landed parse-time validation but not the
user-facing payoff — per-column-type hints. Typing
`insert into Customers values (` rightfully expected a hint
like "Type an integer (e.g. 42, -7) or null" at an int column.
This commit closes that gap.
End-to-end:
**`Node::TypedValueSlot { ty, inner }`** (new variant in
`src/dsl/grammar/mod.rs`):
- Walker walks `inner` to consume the literal but tags
`WalkContext::pending_value_type = Some(ty)` on entry, then
clears it on a successful inner match. Positions BETWEEN
slots (`insert into T values (1` mid-input) thus don't carry
a stale hint type.
**Typed slot factories wrapped in `TypedValueSlot`**
(`src/dsl/grammar/shared.rs`):
- `INT_SLOT`, `REAL_SLOT`, `DECIMAL_SLOT`, `BOOL_SLOT`,
`TEXT_SLOT`, `DATE_SLOT`, `DATETIME_SLOT`, `BLOB_SLOT`,
`SERIAL_SLOT`, `SHORTID_SLOT` — each pairs an inner literal
Choice with its `Type` so the walker can tag context.
- `slot_for_type(ty)` dispatches to the appropriate constant.
- Bug fix: `ShortId` previously dispatched to `INT_SLOT` (a
pre-Phase-D holdover from the chumsky-side generic
fallback). `shortid` columns store base58 text (ADR-0011
fk_target_type shortid → text); the corrected slot accepts
`StringLit` or `null`.
**Schema-aware hint resolver** (`src/dsl/walker/mod.rs`):
- `hint_mode_at_input_with_schema(source, &SchemaCache) ->
Option<HintMode>` is the new public entry point. Reads
`pending_value_type` from the walker's WalkContext and
emits `HintMode::ProseOnly("hint.value_slot_<type>")` —
one per Type.
- The schemaless `hint_mode_at_input(source)` falls back to
the generic `hint.value_literal_slot` at value-literal slots
(no per-type narrowing without a schema).
- `catalog_key_for_value_type(ty)` is the type → key
dispatcher.
**Catalog entries** (`src/friendly/strings/en-US.yaml`,
`src/friendly/keys.rs`):
- 10 new `hint.value_slot_<type>` keys with per-type prose:
- int/serial → "Type an integer (e.g. 42, -7) or null"
- real/decimal → "Type a number (e.g. 3.14, -0.5) or null"
- bool → "Type true, false, or null"
- text → "Type a quoted string (e.g. 'Alice') or null"
- date → "Type a quoted date as 'YYYY-MM-DD' or null"
- datetime → "Type a quoted datetime as 'YYYY-MM-DD
HH:MM:SS' or null"
- blob → "Type a quoted blob literal or null"
- shortid → "Type a quoted shortid (or omit to auto-generate)
or null"
**Ambient-hint dispatch** (`src/input_render.rs::ambient_hint`):
- Passes the SchemaCache through to
`hint_mode_at_input_with_schema`, so the live hint panel
surfaces per-column-type prose as the user types into a
value slot.
Tests:
- 8 walker-side tests cover insert / update / where typed-slot
hint dispatch, mid-value no-stale-hint behaviour, and a
full-coverage routing matrix for every `Type` variant.
- 4 input_render integration tests cover the end-to-end
ambient_hint path: insert first/second value, update set
value, and the schemaless fallback to generic prose.
Tests: 842 passing, 0 failing, 1 ignored. Clippy clean.
For the user: typing `insert into Customers values (` against
a Customers table whose first column is `id:int` now shows
"Type an integer (e.g. 42, -7) or null" in the hint panel,
replacing the previous generic value-literal prose. After
typing `1, `, the panel updates to whatever the second column
requires — "Type a quoted string (e.g. 'Alice') or null"
for text, "Type a quoted date as 'YYYY-MM-DD'" for date, etc.
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abebd7944f |
ADR-0024 Phase D (full): schema-aware value typing
Schema-aware typed value slots — the central design claim of
ADR-0024 §Phase D. Insert / update / delete value slots now
dispatch on the user-facing column type at parse time, rejecting
mis-shaped input with localised wording instead of waiting for
the bind-time error.
What changed:
**SchemaCache extension** (`src/completion.rs`):
- New `TableColumn { name, user_type }` for per-table column
metadata.
- `SchemaCache.table_columns: HashMap<String, Vec<TableColumn>>`.
- `SchemaCache::columns_for_table(name)` — case-insensitive
lookup, mirrors the walker's case-insensitive entry-word
resolution.
**WalkContext schema plumbing** (`src/dsl/walker/context.rs`):
- `WalkContext<'a>` gains a lifetime and a `schema: Option<&'a
SchemaCache>`. `WalkContext::new()` keeps the schemaless
default; `with_schema(s)` is the new schema-aware constructor.
**Parser entry point** (`src/dsl/parser.rs`):
- `parse_command_with_schema(input, schema)` is the new public
schema-aware variant. `parse_command(input)` becomes a thin
wrapper that delegates with `None` for back-compat.
- Internal `try_walker_route` accepts an `Option<&SchemaCache>`
and threads it into the WalkContext.
**Node::Ident writes_table/writes_column** (`src/dsl/grammar/mod.rs`):
- Two new fields on `Node::Ident`. When `writes_table: true` and
`source: Tables`, the walker writes the matched ident's name
into `current_table` and resolves `current_table_columns`
against the schema cache. When `writes_column: true` and
`source: Columns`, the walker writes the resolved
`TableColumn` into `current_column`.
**Walker driver DynamicSubgrammar dispatch** (`src/dsl/walker/driver.rs`):
- The `Node::DynamicSubgrammar(factory)` branch now resolves the
factory at walk time and `Box::leak`s the result so its inner
static-slice fields (Choice/Seq) have the lifetime the walker
expects (per ADR-0024 §sub-grammars). The leak is bounded by
command-shape complexity per walk; per-walk arena is a future
optimisation.
- `walk_ident` extends to perform the schema writes when the
flags are set.
**Typed value slot factories + dynamic sub-grammars** (`src/dsl/grammar/shared.rs`):
- `int_slot` / `real_slot` / `decimal_slot` / `bool_slot` /
`text_slot` / `date_slot` / `datetime_slot` / `blob_slot` —
one per `Type`. Each accepts the appropriate literal kind plus
`null`; integer-only validator rejects `3.14` at int columns;
decimal validator pins numeric shape.
- `slot_for_type(ty) -> Node` is the dispatcher.
- `current_column_value(ctx) -> Node` is the dynamic sub-grammar
for `set col = …` and `where col = …` values; reads
`current_column` and dispatches via `slot_for_type`.
- `column_value_list(ctx) -> Node` is the dynamic sub-grammar
for `insert into T values (…)`; reads `current_table_columns`
and unfolds a Seq of typed slots separated by commas.
- Both fall back to the schemaless `VALUE_LITERAL` choice when
the context lacks the schema-resolved entries — keeps
schemaless `parse_command` callers (tests, replay path)
working.
**Data-command grammar wires the new types** (`src/dsl/grammar/data.rs`):
- `TABLE_NAME_INSERT` / `TABLE_NAME_WRITES` (new): table-name
slots that set `writes_table: true`. Used by insert / update /
delete to populate `current_table_columns`.
- `SET_COLUMN` / `FILTER_COLUMN` (new): column-name slots in
`set col=…` / `where col=…` set `writes_column: true`.
- `INSERT_VALUES_LIST` becomes `DynamicSubgrammar(column_value_list)`.
- `UPDATE_ASSIGNMENT` and `WHERE_CLAUSE` use
`PER_COLUMN_VALUE = DynamicSubgrammar(current_column_value)`.
**Runtime plumbs schema-with-types** (`src/runtime.rs`):
- `refresh_schema_cache` calls `describe_table` for each table
and populates `SchemaCache::table_columns` with
`TableColumn { name, user_type }` entries. Best-effort: a
`describe_table` miss leaves that table unpopulated and the
walker falls back to schemaless dispatch.
**App dispatches with schema** (`src/app.rs`):
- `dispatch_dsl` routes through `parse_command_with_schema(&self
.schema_cache, …)` so live typing/dispatch sees the typed
slots. The replay path stays schemaless (deferred — replay
bind-time errors still catch type mismatches).
**Catalog** (`src/friendly/strings/en-US.yaml`, `src/friendly/keys.rs`):
- New `parse.custom.bind_type_mismatch` entry with `{found}` and
`{expected}` placeholders. Surfaced by the int_slot /
decimal_slot validators.
Tests:
- 11 new walker-side Phase D tests cover insert / update /
delete with schemas — typed acceptance per column, decimal
rejection at int columns, null acceptance at any slot,
multi-assignment per-column dispatch, schemaless fallback.
- The pre-existing `parse_command(input)` test suite (no
schema) still passes — the fallback path is behaviour-
preserving.
- 828 passing total, 0 failing, 1 ignored. Clippy clean.
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85817791dc |
ADR-0024 HintMode dispatch via walker_hint_mode_at_input
Adds the `HintMode` dispatch layer the ADR specified: the
ambient-hint resolver now consults a single
`walker::hint_mode_at_input(source) -> Option<HintMode>` to
decide between the prose / candidates ladder, rather than
discovering each slot kind through three separate post-hoc
helpers (`value_literal_hint_at_cursor`,
`typing_name_at_cursor`, and so on).
Behaviour at slot positions today:
- **Value-literal slot** (`null`/`true`/`false`/number/string
all in the expected set) → `HintMode::ProseOnly
("hint.value_literal_slot")`. The ambient-hint ladder
emits the catalog prose at empty prefix; once the user types
a partial (`n`, `tr`, `fa`) the partial check declines and
normal candidate completion takes over.
- **NewName ident slot** → `HintMode::ForceProse
("hint.ambient_typing_name")`. The ladder still consults
`typing_name_at_cursor` to learn what comes after the name
(the post-name probe is unchanged); `ForceProse` is the
declarative tag telling the resolver *that* we're in this
mode.
`HintMode` itself gains `PartialEq + Eq` for tests, and
its docstring is rewritten to describe the live semantics.
This is the structural shape ADR-0024 §HintMode-per-node
describes: one slot → one hint mode → one dispatch arm. The
detection inside `hint_mode_at_input` is transitional — it
pattern-matches the walker's expected-set today, which is
exactly what the previous ad-hoc detectors did. Phase D will
replace the signature match with node-attached `HintMode`
annotations on the typed value slots (so `date_slot`,
`int_slot`, etc. each carry a type-specific catalog key).
Two helpers move into `input_render.rs`:
- `hint_leading_slice(input, cursor)` mirrors the look-back
used by `candidates_at_cursor` so the hint resolver sees the
same token-boundary view of the world.
- `cursor_partial_is_empty(input, cursor)` distinguishes
empty-prefix from in-progress identifier shapes.
8 new walker tests pin the hint-mode resolver across
value-literal-after-paren, value-literal-after-set-assign,
value-literal-in-where, two NewName-slot cases, the
entry-keyword position, the complete-command position, and
the schema-ident position.
Tests: 817 passing, 0 failing, 1 ignored. Clippy clean.
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266b4c2ef4 |
ADR-0024 Phase F (full) step 3: delete legacy parser modules
Removes the last consumers of `dsl::lexer`, `dsl::keyword`, and
`dsl::ident_slot`, then deletes the modules.
- `Theme::token_color(&TokenKind)` deleted along with its test;
`Theme::highlight_class_color(HighlightClass)` is the sole
highlight-colour mapper (the walker's `per_byte_class` feeds
it directly).
- `IdentSource` (`dsl::grammar`) absorbs the schema-list /
expected-label / round-trip semantics that previously lived
on `IdentSlot`. Adds `completes_from_schema`, `expected_label`,
and `from_expected_label` methods. The walker's
`Expectation::Ident { source }` and the schema-lookup request
on the database worker now share one enum.
- `SchemaCache::for_slot(IdentSlot)` → `for_source(IdentSource)`.
- `Database::list_names_for` and the `Request::ListNamesFor`
worker variant take `IdentSource`. Internal tables and column
/ relationship lookups dispatch on the same enum.
- `InvalidIdent.slot: IdentSlot` → `InvalidIdent.source: IdentSource`.
The `invalid_ident_at_cursor` rendering branch in
`input_render.rs::ambient_hint` updates accordingly.
- Completion's keyword filter (`Keyword::from_word`) becomes
"backticked items whose payload is all ASCII alphabetic" —
punct and digit literals still surface through their own
candidate sources (composite-literal, flag, schema-ident);
the alphabetic filter excludes them from the keyword bucket.
- `friendly::keys::tests::keyword_and_punct_have_complete_token_vocabulary`
is dropped. It cross-checked `Keyword::ALL` / `Punct::ALL`
against catalog entries; both enums are gone. The
`parse.token.keyword.*` / `parse.token.punct.*` catalog
entries themselves survive for one more commit (catalog
cleanup, ADR-0024 §cleanup-pass); the
`keys_validate_against_catalog` test still pins them.
- Modules deleted: `src/dsl/lexer.rs`, `src/dsl/keyword.rs`,
`src/dsl/ident_slot.rs`.
Tests: 806 passing, 0 failing, 1 ignored. The drop from 852
reflects the removed module-internal tests (~32 lexer, 7
keyword, 4 ident_slot, 1 theme token_color, 1 friendly keys
keyword/punct), and is the expected outcome.
Clippy clean with `nursery` lints + `-D warnings`.
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a41400e532 |
ADR-0024 Phase F (full) step 2: usage via CommandNode.usage_ids
Migrates parse-error usage-block rendering from the legacy `dsl::usage::matched_entry` (which scanned a `Vec<Token>` for the first matched Keyword) to walker-side lookup driven by each `CommandNode`'s `usage_ids` slice. `CommandNode.usage_id: Option<&'static str>` becomes `usage_ids: &'static [&'static str]`. Multi-form families (`drop`, `add`, `show`) carry every variant — `drop` lists table/column/relationship templates; `add` lists column / relationship; `show` lists data / table. The single-shape commands carry their single catalog key. App-lifecycle CommandNodes had pointed at non-existent `parse.usage.app.*` keys (never noticed because the field was unused); they now point at the real catalog entries (`parse.usage.quit`, `parse.usage.help`, …). New helpers in `dsl::grammar`: - `usage_keys_for_input(source) -> Option<(entry_word, usage_ids)>` resolves the first identifier-shape token to a CommandNode and returns its usage_ids list. Used by `app::render_usage_block` and `input_render::ambient_hint`. - `entry_words_alphabetised() -> Vec<&'static str>` replaces `dsl::usage::entry_keywords_alphabetised`. `dsl::usage` is deleted. The "available commands:" fallback in `render_usage_block` now formats entry words as `` `<word>` `` directly (matching the `parse.token.keyword.*` catalog renders); the per-keyword catalog wrappers will collapse in the next step (ADR-0024 §cleanup-pass §F). `parse_command` and `parse_tokens` slim down: - `parse_command(input)` no longer pre-lexes — the walker scans source bytes directly. - `parse_tokens` (internal-only `pub` for "future I3/I4 work") is removed; its body folded into `parse_command`. - `unknown_command_error` reads the walker registry directly. Touched modules also drop their `crate::dsl::lexer::lex` and `crate::dsl::usage` imports: `app.rs`, `input_render.rs`, `completion.rs`. Tests: 852 passing, 0 failing, 1 ignored (down from 860 because the 8 `dsl::usage::tests::*` tests are gone with the module). |
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7bdd3987e1 |
ADR-0024 Phase F (full) step 1: walker-driven highlighting
Replaces the lex()-driven `base_runs` span builder in `input_render.rs` with `walker::highlight_runs`. The new walker-side `dsl::walker::highlight` module returns per-byte `HighlightClass` assignments for every token shape in the source: - For commands the walker engages on, `WalkResult::per_byte_class` is the authoritative source (keyword / identifier / number / string / punct / flag). - Trailing junk past a partial match — and inputs the walker doesn't engage on at all (no registered entry word) — fall through to a byte-shape scanner over `lex_helpers` so unknown command words, stray punctuation, and unterminated strings still highlight sensibly. `Theme::highlight_class_color` is the walker-side analogue of `token_color(&TokenKind)`; the renderer reads `walker::highlight_runs` output and looks up colours through it. `token_color` and the `lex()` pre-pass remain in place for now — the lexer module is still consumed by usage rendering and completion until the remaining Phase F steps land. `HighlightClass`'s and `WalkResult::per_byte_class`'s `#[allow(dead_code)]` annotations come off — they're now part of the production highlight path. Tests: - 16 new tests under `dsl::walker::highlight` cover end-to-end walks, byte-shape fallbacks (unknown commands, bare flags, numbers, punctuation), UTF-8 codepoint advance, and trailing- token handling after partial walks. - Existing `input_render` tests pass unchanged. - 860 total tests passing (727 lib + 133 integration), 1 ignored. Clippy clean with `nursery` lints + `-D warnings`. |
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dca472f8a5 |
ADR-0024 Phase E: replay end-to-end
Migrate `replay <path>` to the walker. Shape is Choice(StringLit, BarePath); the StringLit branch handles the quoted form (with the existing `''` escape), and BarePath handles the unquoted form. Per ADR-0024's path-bearing UX change (already shipped for import / export in Phase A), bare `replay` paths terminate at the first whitespace byte. Paths with spaces require the quoted form. The legacy `try_parse_replay_with_bare_path` source-slice helper in dsl/parser.rs is removed; the chumsky-side replay branch in command_parser stays declared but unreachable until Phase F sweeps the chumsky path. Tests: - 7 new walker-specific tests for replay: bare relative path, bare absolute path, quoted with whitespace, quoted with escaped quote, case-insensitive keyword, missing-path error, empty-quoted-path parses to empty (runtime layer rejects). - Total: 844 passed, 0 failed, 1 ignored (was 838 / 1). - cargo clippy --all-targets -- -D warnings clean. |
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c2accc2385 |
ADR-0024 Phase D: data commands at chumsky parity
Migrate the four data commands at four entry words: show
(show data / show table), insert, update, delete. Walker now
owns the entire command set introduced through ADR-0014.
Scope deviation from ADR-0024: full schema-aware value typing
via DynamicSubgrammar(column_value_list) is deferred. The
walker accepts any value at any position — matching the
existing chumsky parser's behaviour, where per-column type
checks happen at bind time. The DynamicSubgrammar Node
variant and WalkContext schema fields stay declared so the
infrastructure is in place when the schema cache plumbs
through parse_command (a future refinement). All existing
tests pass on the new shape.
Walker extensions:
- StringLit terminal — wired to the consume_string_literal
helper that mirrors the legacy lexer's `''` escape handling.
MatchedItem text carries the unescaped payload; span covers
the surrounding quotes.
- Bridge: Incomplete error wording now appends `, found end
of input` (matching the chumsky-side structural error
contract that `structural_error_for_show_data_without_arg`
asserts on).
Grammar:
- src/dsl/grammar/data.rs: SHOW (Choice of show_data /
show_table), INSERT (three forms folded into a single shape
via a Choice ordered to disambiguate Form B's `values`
keyword from Forms A/C's `(`-prefixed content; the inner
paren list is a Choice(VALUE_LITERAL, Ident{Columns}) with
VALUE_LITERAL ordered first so `true`/`false`/`null` match
their Word branch rather than the broader identifier catch-
all), UPDATE (assignments + filter), DELETE (filter).
- VALUE_LITERAL = Choice(Word("null"), Word("true"),
Word("false"), NumberLit, StringLit) — matches the chumsky
`value_literal()`.
- WHERE_CLAUSE / FILTER_CLAUSE shared between update and
delete.
- AST builders walk MatchedPath items in order, using role
tags (`update_set_column`, `filter_column`,
`insert_first_item`) to discriminate column references
belonging to different shapes within the same command.
Tests:
- 13 new walker-specific tests covering all data forms:
show data / show table, insert with each of three forms,
insert with negative numbers, update with single + multiple
assignments + where, update with --all-rows, delete with
where, delete with --all-rows, update/delete without filter
errors, replay still routes via chumsky.
- Total: 838 passed, 0 failed, 1 ignored (was 825 / 1).
- cargo clippy --all-targets -- -D warnings clean.
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6bb688251b |
ADR-0024 Phase C: create table with column-list value literals
Migrate `create table <Name> [with pk [<col>:<type>[, ...]]]`
to the walker. Exercises Repeated{separator: Some(Punct(','))}
for the first time — the with-pk column-spec list.
Walker behaviour changes:
- Optional now backtracks on partial-match failure (Incomplete
or Failed-Mismatch from a Seq mid-shape). Path / per-byte
state rolls back to before the partial attempt; the inner's
expected-set propagates as `skipped` so callers see "what
would have completed it". Matches chumsky's `or_not`
semantics. ValidationFailed (content errors) does NOT
backtrack — the user means to fix those.
- Bridge: ValidationFailed errors now classify as
`at_eof = true`, mirroring the chumsky-side custom-error
convention. This is what lets `create table Customers`
classify as IncompleteAtEof rather than DefiniteErrorAt
(the user can still continue typing `with pk …`).
Grammar:
- src/dsl/grammar/ddl.rs gains CREATE: shape is
Seq(Word("table"), Ident{NewName,table_name}, Optional(WITH_PK))
where WITH_PK = Seq(Word("with"), Word("pk"),
Optional(Repeated{COL_SPEC, separator: Punct(','), min:1})).
AST builder enforces `with pk needs at least one column`
with the existing parse.custom.create_table_needs_pk catalog
wording; `with pk` alone defaults to id:serial.
Tests:
- 6 new walker-specific tests for create_table: with-pk
default, named typed PK, compound PK, whitespace tolerance
around `:` and `,`, bare-create-table-errors-with-with-pk-
hint, case-insensitive keywords.
- Total: 825 passed, 0 failed, 1 ignored (was 819 / 1).
- cargo clippy --all-targets -- -D warnings clean.
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7e79ca865a |
ADR-0024 Phase B: DDL commands without value literals
Migrate the five DDL commands at four entry words: drop (drop
table / drop column / drop relationship), add (add column /
add 1:n relationship), rename (rename column), change (change
column). The walker route now owns these end-to-end; chumsky
declarations remain unreachable for these inputs but stay
until Phase F.
Walker extensions:
- New node kinds: NumberLit (with optional content validator)
and Literal(&str) (verbatim byte sequence with word-boundary
lookahead — used for the `1` in `add 1:n …` so it surfaces
as `\`1\`` in the expected-set, matching the existing
parse_error_pedagogy contract).
- Flag (--name) terminal — Phase A stubbed; now wired to the
walker driver with consume_flag() in lex_helpers.
- Repeated combinator with optional separator and `min` floor.
Used by referential clauses (0..2 `on <delete|update>` runs)
and change-column flags (0..N --force-conversion /
--dont-convert; AST builder enforces mutual exclusion).
- Optional now propagates its inner's expectations as a
`skipped` field on the Matched result. Seq accumulates these
across children so the next failure's expected-set surfaces
the full union — closes the keyword-completion regression
(`add column ` must offer `to`, `table`, plus the table-name
identifier slot).
- Expectation::Ident gained a `source: IdentSource` field; the
parser-side bridge maps Tables/Columns/Relationships/Types
to the IdentSlot::expected_label strings ("table name",
"column name", …) so the existing completion engine's
schema-cache lookup still resolves.
- Walker error wording now includes "after `<consumed>`,
expected …" framing — matches the chumsky-side test
contract for structural errors mid-shape.
- AST-builder validation errors now propagate as
WalkOutcome::ValidationFailed (not the generic "AST builder
failed" fallback), so `change column … --force-conversion
--dont-convert` and repeated `on delete` clauses surface
their friendly catalog wording verbatim.
Grammar additions:
- src/dsl/grammar/shared.rs: type-name validator (TYPE_VALIDATOR
uses Type::from_str via parse.custom.unknown_type catalog),
qualified_column sub-grammar, referential action keyword
(`cascade`/`restrict`/`set null`/`no action`), repeated
on-clauses.
- src/dsl/grammar/ddl.rs: drop/add/rename/change CommandNodes
with inline shapes (per-use-site `role` annotations let the
AST builder discriminate parent vs child columns, etc.).
The four entry words each have one CommandNode whose `shape`
is a Choice across sub-forms.
Tests:
- 14 new walker-specific tests covering all DDL forms (bare
drop table, drop column with optional connectives, drop
relationship by name and by endpoints, add column with type
validator, rename column, change column with each flag form
+ mutual-exclusion check, add 1:n relationship minimal /
full, repeated-clause-twice rejection).
- Total: 819 passed, 0 failed, 1 ignored (was 805 / 1).
- cargo clippy --all-targets -- -D warnings clean.
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50b3542050 |
ADR-0024 Phase A: walker framework + app-lifecycle commands
Stand up the unified-grammar tree walker alongside the existing
chumsky parser and migrate the eleven app-lifecycle commands
(quit, help, rebuild, save / save as, new, load, export, import,
mode, messages) end-to-end. The router in parse_tokens consults
the walker first; non-migrated commands still fall through to
chumsky.
Scope:
- src/dsl/grammar/{mod,app}.rs: Node enum (13 kinds), Word /
IdentSource / HintMode / HighlightClass / ValidationError /
CommandNode types, REGISTRY of the eleven app commands.
- src/dsl/walker/{mod,driver,context,outcome,lex_helpers}.rs:
scannerless byte-level walker, per-node-kind dispatch with
Choice/Seq/Optional backtracking, WalkContext (Phase B-D
schema fields stubbed), WalkOutcome with Match/Incomplete/
Mismatch/ValidationFailed.
- src/dsl/parser.rs: try_walker_route() runs first in
parse_tokens; bridge converts WalkOutcome to ParseError
preserving catalog wording (mode.unknown / messages.unknown
surface verbatim via friendly::translate). Legacy
try_parse_app_path_command deleted; chumsky's bare-keyword
app branches remain unreachable until Phase F sweep.
Walker design choices worth noting:
- mode <value> / messages <value> use Choice(Word, Word, Ident)
so known keywords appear in the expected-set; the trailing
Ident catch-all funnels unknown values into the friendly
validator that always errors with the catalog wording.
- save / save as is one CommandNode (Optional(Word("as"))) -
closes the round-5 "save Tab can't offer as" limitation
structurally.
- Path-bearing UX shipped per ADR-0024: BarePath terminates at
whitespace; paths with spaces use the (not-yet-wired) quoted
form. Existing tests pass on the new shape.
Tests:
- 28 new walker-specific tests in dsl::walker::tests covering
every app-lifecycle command, friendly-error wording for
mode/messages unknown values, trailing-garbage detection,
whitespace tolerance, and routing fall-through.
- Total: 805 passed, 0 failed, 1 ignored (was 777 / 1).
- cargo clippy --all-targets -- -D warnings clean.
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