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First slice of Phase 3 (bidirectional type checker).
lib/go/types.sx defines:
* go-ctx-empty / go-ctx-extend / go-ctx-lookup — context as a value.
* go-ctx-extend-field — consumes the (:field NAMES TYPE) shape from
the parser, binding every name to the shared type. This is the
cross-deliverable validation of the :field binding-group
observation made during Phase 2 func decls: parser produces it,
type checker consumes it, same shape end-to-end.
* go-predeclared — true / false / nil baked in. Full list expanded
on demand.
* go-synth — currently handles variable lookup; literals / calls /
binops follow in subsequent iterations.
* go-check — v0 defers to synth + structural type equality. Untyped-
constant flow and assignment-compatibility relations land later.
* Type errors carry first-class tags (:unbound, :mismatch,
:unsupported-synth) so consumers and tooling can dispatch.
Conformance.sh wired with new types suite. Scoreboard cleanup: drop
the "pending" types row since the suite is now real.
types 12/12, total 317/317. Phase 3 underway.
Sister-plan static-types-bidirectional diary updated with the
synth/check shape: judgment skeleton, error tag structure, and the
proposal that `check` should accept a `subtype?` predicate parameter
so each consumer (Go untyped-constants, TS variance, Rust lifetimes)
plugs in its own variance discipline without rewriting the judgment.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
16 lines
320 B
Markdown
16 lines
320 B
Markdown
# Go-on-SX Scoreboard
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**Total: 317 / 317 tests passing**
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| | Suite | Pass | Total |
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| ✅ | lex | 129 | 129 |
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| ✅ | parse | 176 | 176 |
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| ✅ | types | 12 | 12 |
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| ⬜ | eval | 0 | 0 |
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| ⬜ | runtime | 0 | 0 |
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| ⬜ | stdlib | 0 | 0 |
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| ⬜ | e2e | 0 | 0 |
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Generated by `lib/go/conformance.sh`.
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