sourcemap

README

Source maps consumer for Golang

API docs: https://godoc.org/github.com/go-sourcemap/sourcemap. Examples: https://godoc.org/github.com/go-sourcemap/sourcemap#pkg-examples. Spec: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit.

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