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66 lines
2.0 KiB
66 lines
2.0 KiB
package cc |
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const repTpl = ` |
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{{ $f := .Field }}{{ $r := .Rules }}{{ $typ := inType $f nil }} |
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{{ if $r.GetIgnoreEmpty }} |
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if ({{ accessor . }}.size() > 0) { |
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{{ end }} |
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{{ if $r.GetMinItems }} |
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{{ if eq $r.GetMinItems $r.GetMaxItems }} |
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if ({{ accessor . }}.size() != {{ $r.GetMinItems }}) { |
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{{ err . "value must contain exactly " $r.GetMinItems " item(s)" }} |
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} |
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{{ else if $r.MaxItems }} |
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if ({{ accessor . }}.size() < {{ $r.GetMinItems }} || {{ accessor . }}.size() > {{ $r.GetMaxItems }}) { |
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{{ err . "value must contain between " $r.GetMinItems " and " $r.GetMaxItems " items, inclusive" }} |
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} |
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{{ else }} |
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if ({{ accessor . }}.size() < {{ $r.GetMinItems }}) { |
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{{ err . "value must contain at least " $r.GetMinItems " item(s)" }} |
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} |
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{{ end }} |
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{{ else if $r.MaxItems }} |
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if ({{ accessor . }}.size() > {{ $r.GetMaxItems }}) { |
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{{ err . "value must contain no more than " $r.GetMaxItems " item(s)" }} |
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} |
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{{ end }} |
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{{ if $r.GetUnique }} |
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// Implement comparison for wrapped reference types |
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struct cmp { |
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bool operator() (const std::reference_wrapper<{{ $typ }}> lhs, const std::reference_wrapper<{{ $typ }}> rhs) const { |
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return lhs.get() == rhs.get(); |
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} |
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}; |
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// Implement hashing for wrapped reference types |
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struct hash { |
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std::hash<{{ $typ }}> hash_fn; |
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bool operator() (const std::reference_wrapper<{{ $typ }}> ref) const { |
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return hash_fn(ref.get()); |
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} |
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}; |
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// Save a set of references to avoid copying overhead |
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std::unordered_set<std::reference_wrapper<{{ $typ }}>, hash, cmp> {{ lookup $f "Unique" }}; |
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{{ end }} |
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{{ if or $r.GetUnique (ne (.Elem "" "").Typ "none") }} |
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for (int i = 0; i < {{ accessor . }}.size(); i++) { |
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const auto& item = {{ accessor . }}.Get(i); |
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(void)item; |
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{{ if $r.GetUnique }} |
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auto p = {{ lookup $f "Unique" }}.emplace(const_cast<{{ $typ }}&>(item)); |
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if (p.second == false) { |
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{{ errIdx . "i" "repeated value must contain unique items" }} |
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} |
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{{ end }} |
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{{ render (.Elem "item" "i") }} |
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} |
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{{ end }} |
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{{ if $r.GetIgnoreEmpty }} |
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} |
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{{ end }} |
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`
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