d8076b9333
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.
Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).
Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.
zig build test: 426/426; examples suite: 595/595.
36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
// Mixed int+float arithmetic infers as the FLOAT result, operand-order-independent.
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//
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// `print("{}", expr)` selects integer- vs float-formatting from the STATIC type
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// `inferExprType` reports for the argument (not the lowered value's type), so it
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// exercises the binary-op inference arm directly — distinct from the typed-const
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// validation path. Before the attempt-3 fix, binary-op inference was LHS-biased:
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// `n + 0.5` (int LHS) inferred `i64` and printed a truncated `2`, while `0.5 + n`
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// (float LHS) inferred `f64` and printed `2.5`. The fix routes both through the
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// shared promotion rule (`Lowering.arithResultType`, the same one `lowerBinaryOp`
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// applies for the value), so an int operand with a float operand promotes to the
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// float in either order.
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//
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// Regression (issue 0088, attempt 3 — the inferExprType numeric-promotion root fix).
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#import "modules/std.sx";
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main :: () {
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n := 2; // runtime i64
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// Addition, both operand orders — both promote to f64 → 2.5.
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print("add: {} {}\n", n + 0.5, 0.5 + n);
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// Multiplication, both orders — both promote → 3.0.
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print("mul: {} {}\n", n * 1.5, 1.5 * n);
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// Subtraction / division with the int on the left.
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print("sub: {} div: {}\n", n - 0.5, n / 4.0);
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// f32 operand promotes too (int LHS, f32 RHS).
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half : f32 = 0.5;
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print("f32: {}\n", n + half);
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// A pure-int expression is unaffected — stays i64, prints as an integer.
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print("int: {}\n", n + 3);
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}
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