cache

package

v0.0.0-...-8ad63dc Latest Latest Go to latest Published: Oct 7, 2019 License: MIT Imports: 3 Imported by: 0

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type Cache struct {
	// contains filtered or unexported fields
}

Cache is a struct that stores the compiled nodes to prevent expensive parsing and compiling of DFL expressions.

func New() *Cache

NewCache returns a new node cache

func (c *Cache) Get(exp string) (dfl.Node, bool)

Get returns the node for the given expression and true, if a valid node is found. Otherwise, Get returns (nil, false).

func (c *Cache) Has(exp string) bool

Has returns true if the cache has the Node for the given expression in the cache.

func (c *Cache) MustParseCompile(exp string) dfl.Node

MustParseCompile parses and compiles the expression and then sets the resulting node in the cache.

func (c *Cache) ParseCompile(exp string) (dfl.Node, error)

Parse and compile the DFL expression. If the expression was already compiled, use the version found in the cache. Otherwise,

func (c *Cache) Set(exp string, node dfl.Node)

Set adds the given node to the cache with the expression as key.