parser

Documentation

Overview

Package parser translates the linear stream of tokens into ast structures based on the syntax of the ok language.

Index

• type Errors
  • func (errs Errors) String() string
• type File
  • func (file *File) Pos(offset int) string
• type Parser
  • func ParseString(s string, fileName string) *Parser
  • func (p *Parser) AppendError(node ast.Node, message string)
  • func (p *Parser) AppendErrorAt(pos string, message string)
  • func (p *Parser) AppendErrorf(node ast.Node, format string, args ...interface{})
  • func (p *Parser) AppendFinally(finally *ast.Finally)
  • func (p *Parser) Errors() Errors
  • func (p *Parser) NextFunctionName() string

Types

type Errors

type Errors []error

Errors is a collection of errors.

func (Errors) String

func (errs Errors) String() string

type File

type File struct {
	Funcs    map[string]*ast.Func
	Tests    []*ast.Test
	Imports  map[string]string
	Comments []*ast.Comment
	Tokens   []lexer.Token
}

File contains the output state of the parser for a single input.

func (*File) Pos

func (file *File) Pos(offset int) string

Pos returns the rendered position of a token.

type Parser

type Parser struct {
	File *File

	Interfaces map[string]map[string]string

	// Constants are variables defined at the package level. They cannot be
	// modified and only allow literals for values.
	//
	// TODO(elliot): We should allow for expressions that can be resolved at
	//  compile time, such as "3600 * 24".
	Constants map[string]*ast.Literal
	// contains filtered or unexported fields
}

func ParseString

func ParseString(s string, fileName string) *Parser

ParseString parses source code and returns the AST for the file.

func (*Parser) AppendError

func (p *Parser) AppendError(node ast.Node, message string)

AppendError adds an error to the stack.

func (*Parser) AppendErrorAt

func (p *Parser) AppendErrorAt(pos string, message string)

AppendError adds an error to the stack.

func (*Parser) AppendErrorf

func (p *Parser) AppendErrorf(node ast.Node, format string, args ...interface{})

AppendErrorf adds an error to the stack.

func (*Parser) AppendFinally

func (p *Parser) AppendFinally(finally *ast.Finally)

AppendFinally will track finalizers until the function is finished, then it will be reset.

func (*Parser) Errors

func (p *Parser) Errors() Errors

Errors returns all errors.

func (*Parser) NextFunctionName

func (p *Parser) NextFunctionName() string

NextFunctionName returns a unique name to be used internally for anonymous functions.