60 lines
1.9 KiB
Plaintext
60 lines
1.9 KiB
Plaintext
// issue-0005: optional f32 field in struct loses value when earlier optional is null
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//
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// FIXED: null_literal was double-wrapped as Some in struct literal coercion.
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// Root cause: inferExprType(null) returns .void, coerceToType(.void, ?f32)
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// tried to wrap the already-null value as Some, corrupting the struct.
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#import "modules/std.sx";
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ProposedSize :: struct {
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width: ?f32;
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height: ?f32;
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}
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// Direct function — does it work?
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direct_size :: (proposal: ProposedSize) -> f32 {
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w := if pw := proposal.width { pw; } else { 100.0; };
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h := if ph := proposal.height { ph; } else { 100.0; };
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w + h;
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}
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Sizable :: protocol {
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size :: (proposal: ProposedSize) -> f32;
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}
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Widget :: struct {}
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impl Sizable for Widget {
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size :: (self: *Widget, proposal: ProposedSize) -> f32 {
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w := if pw := proposal.width { pw; } else { 100.0; };
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h := if ph := proposal.height { ph; } else { 100.0; };
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w + h;
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}
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}
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main :: () -> void {
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// Test 1: Direct call
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print("=== Direct calls ===\n");
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d1 := direct_size(ProposedSize.{ width = 50.0, height = null });
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print("d1 = {}\n", d1);
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d2 := direct_size(ProposedSize.{ width = null, height = 50.0 });
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print("d2 = {}\n", d2);
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d3 := direct_size(ProposedSize.{ width = null, height = null });
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print("d3 = {}\n", d3);
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d4 := direct_size(ProposedSize.{ width = 50.0, height = 60.0 });
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print("d4 = {}\n", d4);
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// Test 2: Protocol dispatch
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print("=== Protocol dispatch ===\n");
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w := Widget.{};
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s : Sizable = w;
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r1 := s.size(ProposedSize.{ width = 50.0, height = null });
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print("r1 = {}\n", r1);
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r2 := s.size(ProposedSize.{ width = null, height = 50.0 });
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print("r2 = {}\n", r2);
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r3 := s.size(ProposedSize.{ width = null, height = null });
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print("r3 = {}\n", r3);
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r4 := s.size(ProposedSize.{ width = 50.0, height = 60.0 });
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print("r4 = {}\n", r4);
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}
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