implicit address-taking for array slices

2026-06-23 18:44:59 +02:00
parent 18e2a96b76
commit c7e171c438
5 changed files with 102 additions and 6 deletions
@@ -244,9 +244,26 @@ lower_compound_expr :: proc(state: ^State, expr_id: hir.Expr_Id) -> ir.Instructi
 			diagnostic=source.INVALID_DIAGNOSTIC,
 		})
 	case .Slice:
-		container := lower_nested_expr(state, expr.left)
-		if types.is_array(state.hir_module.exprs[expr.left].type, &state.hir_module.types) {
-			container = lower_location(state, expr.left)
+		left_type := state.hir_module.exprs[expr.left].type
+		container: ir.Instruction_Id
+		if types.is_array(left_type, &state.hir_module.types) {
+			if hir_expr_is_location(state, expr.left) {
+				container = lower_location(state, expr.left)
+			} else {
+				value := lower_nested_expr(state, expr.left)
+				container = append_instruction(state, ir.Instruction{
+					op=.Alloca, span=expr.span, type=left_type,
+					target=ir.INVALID_REF, a=ir.INVALID_INSTRUCTION, b=ir.INVALID_INSTRUCTION,
+					diagnostic=source.INVALID_DIAGNOSTIC,
+				})
+				append_instruction(state, ir.Instruction{
+					op=.Store, span=expr.span, type=left_type,
+					target=ir.INVALID_REF, a=container, b=value,
+					diagnostic=source.INVALID_DIAGNOSTIC,
+				})
+			}
+		} else {
+			container = lower_nested_expr(state, expr.left)
 		}
 		args := make([]ir.Instruction_Id, len(expr.args), state.allocator)
 		for arg, index in expr.args {