}
	}

	var buf bytes.Buffer

	var expr string
	if x.expr != nil {
		expr = ExprString(x.expr)
	} else {
		switch x.mode {
		case builtin:
			expr = predeclaredFuncs[x.id].name
		case typexpr:
			expr = TypeString(x.typ, qf)
		case constant_:
			expr = x.val.String()
		}
	}

	// <expr> (
	if expr != "" {
		buf.WriteString(expr)
		buf.WriteString(" (")
	}

			expr:        `format.dns1123Subdomain().validate("apiextensions.k8s.io")`,
			expectValue: types.OptionalNone,
		},
		{
			name:        "example_usage_qualifiedName",
			expr:        `format.qualifiedName().validate("apiextensions.k8s.io/v1beta1")`,
			expectValue: types.OptionalNone,
		},
		{
			name:        "example_usage_dns1123LabelPrefix",

        data class Failed(val errors: Collection<DocumentError>) : ExprConversion
    }


    private
    fun exprToValue(expr: Expr): ExprConversion = when (expr) {
        is Literal<*> -> ExprConversion.Converted(literalNode(expr))
        is FunctionCall -> run {
            val errors = mutableListOf<DocumentError>()

		}
	}

	var buf bytes.Buffer

	var expr string
	if x.expr != nil {
		expr = ExprString(x.expr)
	} else {
		switch x.mode {
		case builtin:
			expr = predeclaredFuncs[x.id].name
		case typexpr:
			expr = TypeString(x.typ, qf)
		case constant_:
			expr = x.val.String()
		}
	}

	// <expr> (
	if expr != "" {
		buf.WriteString(expr)
		buf.WriteString(" (")
	}

}


sealed interface FunctionArgument : LanguageTreeElement {
    sealed interface ValueArgument : FunctionArgument {
        val expr: Expr
    }

    data class Positional(override val expr: Expr, override val sourceData: SourceData) : ValueArgument
    data class Named(val name: String, override val expr: Expr, override val sourceData: SourceData) : ValueArgument

               },
               "expr": "sum by (pod) (\n  container_memory_working_set_bytes{container=\"discovery\", pod=~\"istiod-.*\"}\n)",
               "legendFormat": "Container ({{pod}})"
            },
            {
               "datasource": {
                  "type": "prometheus",
                  "uid": "$datasource"
               },

	wrapInParentheses := false

	for idx, expr := range exprs {
		if idx > 0 {
			if v, ok := expr.(OrConditions); ok && len(v.Exprs) == 1 {
				builder.WriteString(OrWithSpace)
			} else {
				builder.WriteString(joinCond)
			}
		}

		if len(exprs) > 1 {
			switch v := expr.(type) {
			case OrConditions:
				if len(v.Exprs) == 1 {
					if e, ok := v.Exprs[0].(Expr); ok {
						sql := strings.ToUpper(e.SQL)

    override fun doResolveExpressionStatement(context: AnalysisContext, expr: Expr) {
        val resolvedExpr = expressionResolver.doResolveExpression(context, expr)

        when (expr) {
            is FunctionCall ->
                if (resolvedExpr is ObjectOrigin.FunctionOrigin && isDanglingPureCall(resolvedExpr))
                    errorCollector.collect(ResolutionError(expr, ErrorReason.DanglingPureExpression))

type":"prometheus","uid":"${datasource}"},"expr":"go_memstats_heap_sys_bytes{app=\"istiod\"}","format":"time_series","hide":true,"intervalFactor":2,"legendFormat":"heap sys","refId":"A"},{"datasource":{"type":"prometheus","uid":"${datasource}"},"expr":"go_memstats_heap_alloc_bytes{app=\"istiod\"}","format":"time_series","hide":true,"intervalFactor":2,"legendFormat":"heap alloc","refId":"D"},{"datasource":{"type":"prometheus","uid":"${datasource}"},"expr":"go_memstats_alloc_bytes{app=\"istiod\"}"...

import org.codehaus.groovy.ast.expr.ArgumentListExpression;
import org.codehaus.groovy.ast.expr.BinaryExpression;
import org.codehaus.groovy.ast.expr.ClosureExpression;
import org.codehaus.groovy.ast.expr.ConstantExpression;
import org.codehaus.groovy.ast.expr.ConstructorCallExpression;
import org.codehaus.groovy.ast.expr.DeclarationExpression;
import org.codehaus.groovy.ast.expr.ElvisOperatorExpression;