Orkuncakilkaya
a021362cdb
Strings are values now: `a + b` concatenates and `a == b` / `a != b` compare by
content, replacing the 605 `sconcat(...)` / `streq(...)` calls that made the
compiler read like C.
streq(name, "let") -> name == "let"
sconcat("load ", reg) -> "load " + reg
sconcat(a, sconcat(b, c)) -> a + b + c
Implementation: emit_bin gains a string path. Strings are pointer-typed, so any
`+` with a pointer operand concatenates and `==`/`!=` between pointers compares
content — except when one side is the `null` literal, which stays a pointer
identity test (the only two kinds of pointer `==` in the codebase). Both call a
small hand-written IR prelude, @fn_str_eq / @fn_str_concat, emitted once into any
program that uses string ops (so it works for tools, games and the compiler with
no runtime-splice dependency and no duplicate symbols).
Delivered as two reseeds: (A) add the operators + prelude with the full
pointer-aware dispatch, keeping streq/sconcat; (B) migrate every call site
(354 lines, via a string-literal-safe balanced-paren script that leaves the
function definitions alone) and delete streq/sconcat. examples/strings.ludic +
a test.sh smoke (prints 1 2 3 4 5) guard it.
Reseeded (21890 lines); C-free fixpoint holds; goldens byte-identical; 18/18;
vocab + doc-fences clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
21 lines
640 B
Text
21 lines
640 B
Text
# strings.ludic — strings are values: compare with ==/!=, join with +.
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# Running it prints: 1 2 3 4 5
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program Strings {
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entry {
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let greeting = "hello"
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if greeting == "hello" { print_int(1) } # content comparison
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if greeting != "world" { print_int(2) }
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let who = "Ludic"
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let msg = greeting + ", " + who + "!" # concatenation chains
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if msg == "hello, Ludic!" { print_int(3) }
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# build up a string in a loop
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var line = ""
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var i = 0
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while i < 3 { line = line + "ab"; i = i + 1 }
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if line == "ababab" { print_int(4) }
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if (greeting + who) != greeting { print_int(5) }
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}
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}
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