ast

package
v1.0.1 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 30, 2015 License: Apache-2.0, BSD-3-Clause, Apache-2.0 Imports: 6 Imported by: 0

Documentation

Overview

Abstract Syntax Tree representing the DOT grammar

Index

Constants

View Source 
const (
	FALSE = Bool(false)
	TRUE  = Bool(true)
)
View Source 
const (
	GRAPH   = GraphType(false)
	DIGRAPH = GraphType(true)
)

Variables

This section is empty.

Functions

This section is empty.

Types

type AList 

type AList []*Attr

func AppendAList 

func AppendAList(as, a Elem) (AList, error)

func NewAList 

func NewAList(a Elem) (AList, error)

func (AList) String 

func (this AList) String() string

func (AList) Walk 

func (this AList) Walk(v Visitor)

type Attr 

type Attr struct {
	Field Id
	Value Id
}

func NewAttr 

func NewAttr(f, v Elem) (*Attr, error)

func (*Attr) String 

func (this *Attr) String() string

func (*Attr) Walk 

func (this *Attr) Walk(v Visitor)

type AttrList 

type AttrList []AList

func AppendAttrList 

func AppendAttrList(as, a Elem) (AttrList, error)

func NewAttrList 

func NewAttrList(a Elem) (AttrList, error)

func PutMap 

func PutMap(attrmap map[string]string) AttrList

func (AttrList) GetMap 

func (this AttrList) GetMap() map[string]string

func (AttrList) String 

func (this AttrList) String() string

func (AttrList) Walk 

func (this AttrList) Walk(v Visitor)

type Bool 

type Bool bool

func (Bool) String 

func (this Bool) String() string

func (Bool) Walk 

func (this Bool) Walk(v Visitor)

type EdgeAttrs 

type EdgeAttrs AttrList

func NewEdgeAttrs 

func NewEdgeAttrs(a Elem) (EdgeAttrs, error)

func (EdgeAttrs) String 

func (this EdgeAttrs) String() string

func (EdgeAttrs) Walk 

func (this EdgeAttrs) Walk(v Visitor)

type EdgeOp 

type EdgeOp bool
const (
	DIRECTED   EdgeOp = true
	UNDIRECTED EdgeOp = false
)

func (EdgeOp) String 

func (this EdgeOp) String() string

func (EdgeOp) Walk 

func (this EdgeOp) Walk(v Visitor)

type EdgeRH 

type EdgeRH struct {
	Op          EdgeOp
	Destination Location
}

func (*EdgeRH) String 

func (this *EdgeRH) String() string

func (*EdgeRH) Walk 

func (this *EdgeRH) Walk(v Visitor)

type EdgeRHS 

type EdgeRHS []*EdgeRH

func AppendEdgeRHS 

func AppendEdgeRHS(e, op, id Elem) (EdgeRHS, error)

func NewEdgeRHS 

func NewEdgeRHS(op, id Elem) (EdgeRHS, error)

func (EdgeRHS) String 

func (this EdgeRHS) String() string

func (EdgeRHS) Walk 

func (this EdgeRHS) Walk(v Visitor)

type EdgeStmt 

type EdgeStmt struct {
	Source  Location
	EdgeRHS EdgeRHS
	Attrs   AttrList
}

func NewEdgeStmt 

func NewEdgeStmt(id, e, attrs Elem) (*EdgeStmt, error)

func (EdgeStmt) String 

func (this EdgeStmt) String() string

func (EdgeStmt) Walk 

func (this EdgeStmt) Walk(v Visitor)

type Elem 

type Elem interface {
	String() string
}

type Graph 

type Graph struct {
	Type     GraphType
	Strict   bool
	Id       Id
	StmtList StmtList
}

func NewGraph 

func NewGraph(t, strict, id, l Elem) (*Graph, error)

func (*Graph) String 

func (this *Graph) String() string

func (*Graph) Walk 

func (this *Graph) Walk(v Visitor)

type GraphAttrs 

type GraphAttrs AttrList

func NewGraphAttrs 

func NewGraphAttrs(a Elem) (GraphAttrs, error)

func (GraphAttrs) String 

func (this GraphAttrs) String() string

func (GraphAttrs) Walk 

func (this GraphAttrs) Walk(v Visitor)

type GraphType 

type GraphType bool

func (GraphType) String 

func (this GraphType) String() string

func (GraphType) Walk 

func (this GraphType) Walk(v Visitor)

type Id 

type Id string

func NewId 

func NewId(id Elem) (Id, error)

func (Id) String 

func (this Id) String() string

func (Id) Walk 

func (this Id) Walk(v Visitor)

type Location 

type Location interface {
	Elem
	Walkable

	GetId() Id
	GetPort() Port
	IsNode() bool
	// contains filtered or unexported methods
}

type NodeAttrs 

type NodeAttrs AttrList

func NewNodeAttrs 

func NewNodeAttrs(a Elem) (NodeAttrs, error)

func (NodeAttrs) String 

func (this NodeAttrs) String() string

func (NodeAttrs) Walk 

func (this NodeAttrs) Walk(v Visitor)

type NodeId 

type NodeId struct {
	Id   Id
	Port Port
}

func MakeNodeId 

func MakeNodeId(id string, port string) *NodeId

func NewNodeId 

func NewNodeId(id Elem, port Elem) (*NodeId, error)

func (*NodeId) GetId 

func (this *NodeId) GetId() Id

func (*NodeId) GetPort 

func (this *NodeId) GetPort() Port

func (*NodeId) IsNode 

func (this *NodeId) IsNode() bool

func (*NodeId) String 

func (this *NodeId) String() string

func (*NodeId) Walk 

func (this *NodeId) Walk(v Visitor)

type NodeStmt 

type NodeStmt struct {
	NodeId *NodeId
	Attrs  AttrList
}

func NewNodeStmt 

func NewNodeStmt(id, attrs Elem) (*NodeStmt, error)

func (NodeStmt) String 

func (this NodeStmt) String() string

func (NodeStmt) Walk 

func (this NodeStmt) Walk(v Visitor)

type Port 

type Port struct {
	Id1 Id
	Id2 Id
}

TODO semantic analysis should decide which Id is an Id and which is a Compass Point

func NewPort 

func NewPort(id1, id2 Elem) (Port, error)

func (Port) String 

func (this Port) String() string

func (Port) Walk 

func (this Port) Walk(v Visitor)

type Stmt 

type Stmt interface {
	Elem
	Walkable
	// contains filtered or unexported methods
}

type StmtList 

type StmtList []Stmt

func AppendStmtList 

func AppendStmtList(ss, s Elem) (StmtList, error)

func NewStmtList 

func NewStmtList(s Elem) (StmtList, error)

func (StmtList) String 

func (this StmtList) String() string

func (StmtList) Walk 

func (this StmtList) Walk(v Visitor)

type SubGraph 

type SubGraph struct {
	Id       Id
	StmtList StmtList
}

func NewSubGraph 

func NewSubGraph(id, l Elem) (*SubGraph, error)

func (*SubGraph) GetId 

func (this *SubGraph) GetId() Id

func (*SubGraph) GetPort 

func (this *SubGraph) GetPort() Port

func (*SubGraph) IsNode 

func (this *SubGraph) IsNode() bool

func (*SubGraph) String 

func (this *SubGraph) String() string

func (*SubGraph) Walk 

func (this *SubGraph) Walk(v Visitor)

type Visitor 

type Visitor interface {
	Visit(e Elem) Visitor
}

type Walkable 

type Walkable interface {
	Walk(v Visitor)
}

Source Files

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