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>
39 lines
1.6 KiB
Text
39 lines
1.6 KiB
Text
# emit_machine.ludic — `machine <reg> { state Name = v { .. } }` dispatches on a
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# register's value; `become Name` stores the target state's value back. Both are
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# reg()/set_reg() calls, resolved to the runtime like any other builtin.
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fn emit_machine(st: Node) -> void {
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let regv = emit_expr(st.a)
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let s = emit_bind(("call i32 @fn_rt_reg(i32 " + (regv.code + ")")))
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if nmach < len(mach_stk) { mach_stk[nmach] = st } else { push(mach_stk, st) }
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nmach = nmach + 1
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let endl = lbl("smend")
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var i = 0
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while i < len(st.kids) {
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let state = st.kids[i]
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let v = emit_expr(state.b)
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let c = emit_bind(("icmp eq i32 " + (s + (", " + v.code))))
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let body = lbl("sbody"); let nxt = lbl("sarm")
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emit(" br i1 "); emit(c); emit(", label %"); emit(body); emit(", label %"); emit(nxt); emit("\n")
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emit(body); emit(":\n"); g_term = false
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emit_block(state.a)
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if not g_term { emit(" br label %"); emit(endl); emit("\n") }
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emit(nxt); emit(":\n"); g_term = false
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i = i + 1
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}
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if not g_term { emit(" br label %"); emit(endl); emit("\n") }
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emit(endl); emit(":\n"); g_term = false
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nmach = nmach - 1
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}
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fn emit_become(st: Node) -> void {
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if nmach == 0 { perr("'become' outside a machine") }
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let m = mach_stk[nmach - 1]
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var target: Node = null
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var i = 0
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while i < len(m.kids) { if (m.kids[i].s == st.s) { target = m.kids[i] }; i = i + 1 }
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if (target == null) { perr(("become: no state " + st.s)) }
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let regv = emit_expr(m.a)
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let sv = emit_expr(target.b)
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emit(" call void @fn_rt_set_reg(i32 "); emit(regv.code); emit(", i32 "); emit(sv.code); emit(")\n")
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}
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