Orkuncakilkaya
7e7f3ab297
registry NAME of RECORD [as PREFIX] is a global table; def NAME key { ... } in
any file is one entry, collected in source order and filled before any code
runs. Each entry gets an index constant (PREFIX_KEY), the table PREFIX_COUNT,
and a record with a key field gets it filled and a NAME_find(key). A record
literal naming a field its record lacks is now an error everywhere; a global's
initializer is lowered as its own file's code (its errors, and what its module
may see, were whichever statement came last).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
24 lines
1.1 KiB
Text
24 lines
1.1 KiB
Text
# registry.ludic — L8: registration by declaration. A registry is a table of records; each `def`
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# is one entry, written where it belongs - in any file, in source order - rather than as a call
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# in an init function. The compiler fills the table before any code runs, gives every entry an
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# index constant (the prefix and the key: HF_CRATE), a count (HF_COUNT), fills a `key` field
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# when the record has one, and adds a lookup by key (furnishings_find).
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#
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# Running it prints: 3 Crate true 2 fire_ring -1
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program Registry {
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def Furnishings bench { name: "Bench", cost: 90, seat: true }
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property Furnishing {
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key: string = ""
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name: string = ""
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cost: int = 0
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seat: bool = false
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}
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registry Furnishings of Furnishing as HF
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def Furnishings crate { name: "Crate", cost: 30 }
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def Furnishings fire_ring { name: "Fire ring", cost: 120 }
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entry {
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var seat = "false"
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if Furnishings[HF_BENCH].seat { seat = "true" }
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print(`{HF_COUNT} {Furnishings[HF_CRATE].name} {seat} {furnishings_find("fire_ring")} {Furnishings[2].key} {furnishings_find("nope")}`)
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}
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}
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