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feat(lang): float and double types with ordinary operators

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`float` (32-bit) and `double` (64-bit) with + - * / %, comparisons and unary minus.
Decimal literals take their type from context and stay `fixed` elsewhere; int and long
promote implicitly (LUDIC_WARN_FLOAT_PROMOTE=1 lists every promotion). float(), double(),
int(), long() and fixed() convert; floats(n)/doubles(n) buffers; float fields, globals,
constants and parameters; Math.* computes in float for float arguments; string/print
write the shortest round-tripping decimal; float_bits/float_from_bits expose the bits.
@deterministic code may not use floats. The f_* runtime helpers stay as they are.

Editors know the new type words; the JetBrains plugin is 1.5.0.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-16 16:02:03 +03:00
parent f92d7f89c6
commit e010c2cecc
40 changed files with 67726 additions and 57272 deletions
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8
selfhost/backend/emit_decl.ludic
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@ -13,6 +13,7 @@ function emit_params_sig(d: Node) -> void {
function emit_fn(d: Node) -> void {
ll_t = 0; ll_lbl = 0; g_term = false; loc_reset(); nloop = 0
det_enter(d.s)
g_cur_scene = null # a function belongs to no scene: `become` leaves the live one
ret_ty = d.ty
let fbody = buf_new()
@ -40,6 +41,7 @@ function emit_fn(d: Node) -> void {
emit(buf_str(falloc))
emit(buf_str(fbody))
emit("}\n\n")
g_det_ctx = ""
}
function emit_main(d: Node) -> void {
@ -208,6 +210,9 @@ function emit_program() -> void {
code = buf_new()
g_uses_str = false
g_uses_intstr = false
g_uses_fpstr = false
g_fp_decls = new []pointer
g_prevals = new []Val
g_uses_strslice = false
g_uses_loopback = false
g_uses_expect = false
@ -256,7 +261,8 @@ function emit_program() -> void {
if g_uses_world_despawn { emit_world_despawn_fn() } # #84: @fn_world_despawn, after all World.despawn / esys_bounds-kill uses are seen
if g_uses_loopback { emit_loopback() } # built-in transport, after all net_send/net_poll uses are seen
if g_uses_str { emit_str_prelude() } # @lp_str_eq / @lp_str_concat, after all uses are seen
if g_uses_intstr { emit_int_str() } # @lp_int_str, for string(int) in interpolation
if g_uses_intstr { emit_int_str() }
if g_uses_fpstr { emit_fp_str_fn() } # @lp_int_str, for string(int) in interpolation
if g_uses_longstr { emit_long_str() } # @lp_long_str, for string(long) / long interpolation
if g_uses_strslice { emit_str_slice() } # @lp_str_slice, for s[a..b]
if g_uses_mathrt { emit_math_prelude() } # @lp_fx_sqrt / @lp_fx_sin + the sine table