utilities

Documentation

Overview

Package utilities provides members for internal use in grpc-gateway.

Index

• Constants
• func IOReaderFactory(r io.Reader) (func() io.Reader, error)
• type DoubleArray
  • func NewDoubleArray(seqs [][]string) *DoubleArray
  • func (da *DoubleArray) HasCommonPrefix(seq []string) bool
• type OpCode
• type StringArrayFlags
  • func StringArrayFlag(f flagInterface, name string, usage string) *StringArrayFlags
  • func (i *StringArrayFlags) Set(value string) error
  • func (i *StringArrayFlags) String() string

Constants

const (
	// OpNop does nothing
	OpNop = OpCode(iota)
	// OpPush pushes a component to stack
	OpPush
	// OpLitPush pushes a component to stack if it matches to the literal
	OpLitPush
	// OpPushM concatenates the remaining components and pushes it to stack
	OpPushM
	// OpConcatN pops N items from stack, concatenates them and pushes it back to stack
	OpConcatN
	// OpCapture pops an item and binds it to the variable
	OpCapture
	// OpEnd is the least positive invalid opcode.
	OpEnd
)

These constants are the valid values of OpCode.

Functions

func IOReaderFactory

func IOReaderFactory(r io.Reader) (func() io.Reader, error)

IOReaderFactory takes in an io.Reader and returns a function that will allow you to create a new reader that begins at the start of the stream

Types

type DoubleArray

type DoubleArray struct {
	// Encoding keeps an encoding from string to int
	Encoding map[string]int
	// Base is the base array of Double Array
	Base []int
	// Check is the check array of Double Array
	Check []int
}

DoubleArray is a Double Array implementation of trie on sequences of strings.

func NewDoubleArray

func NewDoubleArray(seqs [][]string) *DoubleArray

NewDoubleArray builds a DoubleArray from a set of sequences of strings.

func (*DoubleArray) HasCommonPrefix

func (da *DoubleArray) HasCommonPrefix(seq []string) bool

HasCommonPrefix determines if any sequence in the DoubleArray is a prefix of the given sequence.

type OpCode

type OpCode int

An OpCode is a opcode of compiled path patterns.

type StringArrayFlags

type StringArrayFlags []string

StringArrayFlags is a wrapper of `[]string` to provider an interface for `flag.Var`

func StringArrayFlag

func StringArrayFlag(f flagInterface, name string, usage string) *StringArrayFlags

StringArrayFlag defines a flag with the specified name and usage string. The return value is the address of a `StringArrayFlags` variable that stores the repeated values of the flag.

func (*StringArrayFlags) Set

func (i *StringArrayFlags) Set(value string) error

Set appends a value to `StringArrayFlags`

func (*StringArrayFlags) String

func (i *StringArrayFlags) String() string

String returns a string representation of `StringArrayFlags`