promql: remove DotGraph methods from nodes.

promql/ast.go

@@ -40,8 +40,6 @@ type Node interface {
 	// String representation of the node that returns the given node when parsed
 	// as part of a valid query.
 	String() string
-	// DotGraph returns a dot graph representation of the node.
-	DotGraph() string
 }
 
 // Statement is a generic interface for all statements.

promql/printer.go

@@ -15,7 +15,6 @@ package promql
 
 import (
 	"fmt"
-	"reflect"
 	"sort"
 	"strings"
 
@@ -246,158 +245,3 @@ func (node *VectorSelector) String() string {
 	sort.Strings(labelStrings)
 	return fmt.Sprintf("%s{%s}", node.Name, strings.Join(labelStrings, ","))
 }
-
-// DotGraph returns a DOT representation of a statement list.
-func (ss Statements) DotGraph() string {
-	graph := ""
-	for _, stmt := range ss {
-		graph += stmt.DotGraph()
-	}
-	return graph
-}
-
-// DotGraph returns a DOT representation of the alert statement.
-func (node *AlertStmt) DotGraph() string {
-	graph := fmt.Sprintf(
-		`digraph "Alert Statement" {
-	  %#p[shape="box",label="ALERT %s IF FOR %s"];
-		%#p -> %x;
-		%s
-	}`,
-		node, node.Name, strutil.DurationToString(node.Duration),
-		node, reflect.ValueOf(node.Expr).Pointer(),
-		node.Expr.DotGraph(),
-	)
-	return graph
-}
-
-// DotGraph returns a DOT representation of the eval statement.
-func (node *EvalStmt) DotGraph() string {
-	graph := fmt.Sprintf(
-		`%#p[shape="box",label="[%d:%s:%d]";
-		%#p -> %x;
-		%s
-	}`,
-		node, node.Start, node.End, node.Interval,
-		node, reflect.ValueOf(node.Expr).Pointer(),
-		node.Expr.DotGraph(),
-	)
-	return graph
-}
-
-// DotGraph returns a DOT representation of the record statement.
-func (node *RecordStmt) DotGraph() string {
-	graph := fmt.Sprintf(
-		`%#p[shape="box",label="%s = "];
-		%#p -> %x;
-		%s
-	}`,
-		node, node.Name,
-		node, reflect.ValueOf(node.Expr).Pointer(),
-		node.Expr.DotGraph(),
-	)
-	return graph
-}
-
-// DotGraph returns a DOT representation of // DotGraph returns a DOT representation of the record statement.
-// DotGraph returns a DOT representation of a statement list.
-func (es Expressions) DotGraph() string {
-	graph := ""
-	for _, expr := range es {
-		graph += expr.DotGraph()
-	}
-	return graph
-}
-
-// DotGraph returns a DOT representation of the vector aggregation.
-func (node *AggregateExpr) DotGraph() string {
-	groupByStrings := make([]string, 0, len(node.Grouping))
-	for _, label := range node.Grouping {
-		groupByStrings = append(groupByStrings, string(label))
-	}
-
-	graph := fmt.Sprintf("%#p[label=\"%s BY (%s)\"]\n",
-		node,
-		node.Op,
-		strings.Join(groupByStrings, ", "))
-	graph += fmt.Sprintf("%#p -> %x;\n", node, reflect.ValueOf(node.Expr).Pointer())
-	graph += node.Expr.DotGraph()
-	return graph
-}
-
-// DotGraph returns a DOT representation of the expression.
-func (node *BinaryExpr) DotGraph() string {
-	nodeAddr := reflect.ValueOf(node).Pointer()
-	graph := fmt.Sprintf(
-		`
-		%x[label="%s"];
-		%x -> %x;
-		%x -> %x;
-		%s
-		%s
-	}`,
-		nodeAddr, node.Op,
-		nodeAddr, reflect.ValueOf(node.LHS).Pointer(),
-		nodeAddr, reflect.ValueOf(node.RHS).Pointer(),
-		node.LHS.DotGraph(),
-		node.RHS.DotGraph(),
-	)
-	return graph
-}
-
-// DotGraph returns a DOT representation of the function call.
-func (node *Call) DotGraph() string {
-	graph := fmt.Sprintf("%#p[label=\"%s\"];\n", node, node.Func.Name)
-	graph += functionArgsToDotGraph(node, node.Args)
-	return graph
-}
-
-// DotGraph returns a DOT representation of the number literal.
-func (node *NumberLiteral) DotGraph() string {
-	return fmt.Sprintf("%#p[label=\"%v\"];\n", node, node.Val)
-}
-
-// DotGraph returns a DOT representation of the encapsulated expression.
-func (node *ParenExpr) DotGraph() string {
-	return node.Expr.DotGraph()
-}
-
-// DotGraph returns a DOT representation of the matrix selector.
-func (node *MatrixSelector) DotGraph() string {
-	return fmt.Sprintf("%#p[label=\"%s\"];\n", node, node)
-}
-
-// DotGraph returns a DOT representation of the string literal.
-func (node *StringLiteral) DotGraph() string {
-	return fmt.Sprintf("%#p[label=\"'%q'\"];\n", node, node.Val)
-}
-
-// DotGraph returns a DOT representation of the unary expression.
-func (node *UnaryExpr) DotGraph() string {
-	nodeAddr := reflect.ValueOf(node).Pointer()
-	graph := fmt.Sprintf(
-		`
-		%x[label="%s"];
-		%x -> %x;
-		%s
-		%s
-	}`,
-		nodeAddr, node.Op,
-		nodeAddr, reflect.ValueOf(node.Expr).Pointer(),
-		node.Expr.DotGraph(),
-	)
-	return graph
-}
-
-// DotGraph returns a DOT representation of the vector selector.
-func (node *VectorSelector) DotGraph() string {
-	return fmt.Sprintf("%#p[label=\"%s\"];\n", node, node)
-}
-
-func functionArgsToDotGraph(node Node, args Expressions) string {
-	graph := args.DotGraph()
-	for _, arg := range args {
-		graph += fmt.Sprintf("%x -> %x;\n", reflect.ValueOf(node).Pointer(), reflect.ValueOf(arg).Pointer())
-	}
-	return graph
-}