parser

Documentation

Overview

parser package defines the parser for the Authzed Schema DSL.

Index

• Variables
• type AstNode
  • func Parse(builder NodeBuilder, source input.Source, input string) AstNode
• type NodeBuilder

Variables

var ComputeExpressionOperators = []binaryOpDefinition{
	{lexer.TokenTypeMinus, dslshape.NodeTypeExclusionExpression},
	{lexer.TokenTypeAnd, dslshape.NodeTypeIntersectExpression},
	{lexer.TokenTypePlus, dslshape.NodeTypeUnionExpression},
}

ComputeExpressionOperators defines the binary operators in precedence order.

Types

type AstNode

type AstNode interface {
	// Connect connects this AstNode to another AstNode with the given predicate,
	// and returns the same AstNode.
	Connect(predicate string, other AstNode) AstNode

	// Decorate decorates this AstNode with the given property and string value,
	// and returns the same AstNode.
	Decorate(property string, value string) AstNode

	// Decorate decorates this AstNode with the given property and int value,
	// and returns the same AstNode.
	DecorateWithInt(property string, value int) AstNode
}

AstNode defines an interface for working with nodes created by this parser.

func Parse

func Parse(builder NodeBuilder, source input.Source, input string) AstNode

Parse parses the given Schema DSL source into a parse tree.

type NodeBuilder

type NodeBuilder func(source input.Source, kind dslshape.NodeType) AstNode

NodeBuilder is a function for building AST nodes.