8908e78943
K : [4]s64 : .[...] and the untyped A :: .[1, 2, 3] register as is_const globals: one storage, reads GEP it, dead-global elimination drops unused ones, source-aware reads come free via selectGlobalAuthor. - registerConstArrayGlobal (scanDecls pass 2): typed via the annotation (array-ness + dimension/count checked), untyped via element-type unification — all ints s64; ANY float promotes the element type to f64 with ints converting exactly; bool/string homogeneous; a non-numeric mix or non-inferable element asks for an annotation. - constExprValue converts int elements into float destinations exactly (the int+float promotion rule, element-wise). - emitGlobals marks is_const globals LLVMSetGlobalConstant — also flips the comptime-backed #run globals and __sx_default_context to 'constant' (37 pinned IR snapshots regenerated; runtime unchanged). - Element shapes: nested arrays, struct elements, strings, bools. Non-constant elements / dim mismatch / mixed types diagnose loudly. Examples: 0177 (feature matrix incl. @K reads through *[4]s64 — needs the 0117 fix), 1159/1160/1161 (diagnostics), 0837 repointed to values.
35 lines
1.3 KiB
Plaintext
35 lines
1.3 KiB
Plaintext
// Array-typed `::` constants are IMMUTABLE GLOBALS: one storage, reads
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// GEP it, the emitter marks it constant, dead-global elimination drops
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// unused ones. Typed (`K : [4]s64 : .[...]`) and untyped (`A :: .[...]`,
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// element type inferred — all ints s64; any float promotes the element
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// type to f64 with ints converting exactly; bool/string homogeneous).
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// Element shapes cover nested aggregates. Reads are normal array values:
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// indexing, .len, by-value copies (independent of the const), passing to
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// fixed-array params, and @-address (reads through *[4]s64 — issue 0117).
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#import "modules/std.sx";
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K : [4]s64 : .[11, 22, 33, 44];
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A :: .[1, 2, 3];
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M :: .[1, 2.2, 3];
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F : [2]f64 : .[1, 2.5];
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S :: .["alpha", "beta"];
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B :: .[true, false, true];
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P :: struct { x, y: s64; }
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PTS : [2]P : .[P.{ x = 1, y = 2 }, P.{ x = 3, y = 4 }];
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GRID : [2][2]s64 : .[.[1, 2], .[3, 4]];
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sum :: (xs: [4]s64) -> s64 { xs[0] + xs[1] + xs[2] + xs[3] }
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main :: () {
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print("typed={} untyped={} len={}\n", K[2], A[1], K.len);
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print("mixed={} {} {} intfloat={}\n", M[0], M[1], M[2], F[0]);
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print("str={} bool={} pt={} grid={}\n", S[1], B[2], PTS[1].y, GRID[1][0]);
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k := K;
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k[0] = 99;
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print("copy={} const={}\n", k[0], K[0]);
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print("sum={}\n", sum(K));
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p := @K;
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print("via-ptr={}\n", p[2]);
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}
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