Function celMatcherStringListMacroExpander

modules/caddyhttp/celmatcher.go:592–607

celMatcherStringListMacroExpander validates that the macro is called with a variable number of string arguments (at least one). The arguments are collected into a single list argument the following function call returned: <funcName>(request, [args])

(funcName string)

// The arguments are collected into a single list argument the following
// function call returned: <funcName>(request, [args])
func celMatcherStringListMacroExpander(funcName string) cel.MacroFactory {
	return func(eh cel.MacroExprFactory, target ast.Expr, args []ast.Expr) (ast.Expr, *common.Error) {
		matchArgs := []ast.Expr{}
		if len(args) == 0 {
			return nil, eh.NewError(0, "matcher requires at least one argument")
		}
		for _, arg := range args {
			if isCELStringExpr(arg) {
				matchArgs = append(matchArgs, arg)
			} else {
				return nil, eh.NewError(arg.ID(), "matcher arguments must be string constants")
			}
		}
		return eh.NewCall(funcName, eh.NewIdent(CELRequestVarName), eh.NewList(matchArgs...)), nil
	}
}

// celMatcherStringMacroExpander validates that the macro is called a single
// string argument.