build: + <variant> for osx build
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1 changed files with 2 additions and 1 deletions
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@ -15,6 +15,7 @@
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#include <xo/expression2/Expression.hpp>
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#include <xo/gc/GCObject.hpp>
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#include <xo/alloc2/abox.hpp>
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#include <variant>
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namespace xo {
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namespace scm {
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@ -91,7 +92,7 @@ namespace xo {
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/** allocator for runtime errors **/
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obj<AAllocator> error_allocator() const noexcept;
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/** true iff parser is at top-level -> does not contain
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/** true iff parser is at top-level -> does not contain
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* state for a incomplete/partial expression
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**/
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bool is_at_toplevel() const noexcept;
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