sourcemap

README

Source maps consumer for Golang

This package is brought to you by ⭐ uptrace/uptrace. Uptrace is an open-source APM tool that supports distributed tracing, metrics, and logs. You can use it to monitor applications and set up automatic alerts to receive notifications via email, Slack, Telegram, and others.

Installation

Install:

go get -u github.com/go-sourcemap/sourcemap

Quickstart

func ExampleParse() {
	mapURL := "http://code.jquery.com/jquery-2.0.3.min.map"
	resp, err := http.Get(mapURL)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}

	smap, err := sourcemap.Parse(mapURL, b)
	if err != nil {
		panic(err)
	}

	line, column := 5, 6789
	file, fn, line, col, ok := smap.Source(line, column)
	fmt.Println(file, fn, line, col, ok)
	// Output: http://code.jquery.com/jquery-2.0.3.js apply 4360 27 true
}

Documentation

Index

• type Consumer
  • func Parse(sourcemapURL string, b []byte) (*Consumer, error)
  • func (c *Consumer) File() string
  • func (c *Consumer) Source(genLine, genColumn int) (source, name string, line, column int, ok bool)
  • func (c *Consumer) SourceContent(source string) string
  • func (c *Consumer) SourcemapURL() string

Examples

• Parse

Types

type Consumer

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

func Parse

func Parse(sourcemapURL string, b []byte) (*Consumer, error)

Example

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"

	"github.com/go-sourcemap/sourcemap"
)

func main() {
	mapURL := "http://code.jquery.com/jquery-2.0.3.min.map"
	resp, err := http.Get(mapURL)
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()

	b, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		panic(err)
	}

	smap, err := sourcemap.Parse(mapURL, b)
	if err != nil {
		panic(err)
	}

	line, column := 5, 6789
	file, fn, line, col, ok := smap.Source(line, column)
	fmt.Println(file, fn, line, col, ok)
}

Output:

http://code.jquery.com/jquery-2.0.3.js apply 4360 27 true

func (*Consumer) File

func (c *Consumer) File() string

File returns an optional name of the generated code that this source map is associated with.

func (*Consumer) Source

func (c *Consumer) Source(
	genLine, genColumn int,
) (source, name string, line, column int, ok bool)

Source returns the original source, name, line, and column information for the generated source's line and column positions.

func (*Consumer) SourceContent

func (c *Consumer) SourceContent(source string) string

SourceContent returns the original source content for the source.

func (*Consumer) SourcemapURL

func (c *Consumer) SourcemapURL() string