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Simplify variadic function support and add a test for it

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Elara
2024-01-24 22:33:47 -08:00
parent 9bf56b50a4
commit 958a25d559
2 changed files with 21 additions and 11 deletions
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22
salix.go
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@@ -477,7 +477,7 @@ func (t *Template) execFunc(fn reflect.Value, node ast.Node, args []ast.Node, lo
fnType := fn.Type()
lastIndex := fnType.NumIn() - 1
isVariadic := fnType.IsVariadic()
if !isVariadic && fnType.NumIn() != len(args) {
return nil, ast.PosError(node, "%s: invalid parameter amount: %d (expected %d)", valueToString(node), len(args), fnType.NumIn())
}
@@ -496,18 +496,18 @@ func (t *Template) execFunc(fn reflect.Value, node ast.Node, args []ast.Node, lo
return nil, err
}
params = append(params, reflect.ValueOf(paramVal))
var paramType reflect.Type
if isVariadic && i >= lastIndex {
if params[i].CanConvert(fnType.In(lastIndex).Elem()) {
params[i] = params[i].Convert(fnType.In(lastIndex).Elem())
} else {
return nil, ast.PosError(node, "%s: invalid parameter type: %T (expected %s)", valueToString(node), paramVal, fnType.In(i))
}
paramType = fnType.In(lastIndex).Elem()
} else {
if params[i].CanConvert(fnType.In(i)) {
params[i] = params[i].Convert(fnType.In(i))
} else {
return nil, ast.PosError(node, "%s: invalid parameter type: %T (expected %s)", valueToString(node), paramVal, fnType.In(i))
}
paramType = fnType.In(i)
}
if params[i].CanConvert(paramType) {
params[i] = params[i].Convert(paramType)
} else {
return nil, ast.PosError(node, "%s: invalid parameter type: %T (expected %s)", valueToString(node), paramVal, paramType)
}
}