https://github.com/mbrt/melting

Go package allowing to melt two heterogeneous structures
https://github.com/mbrt/melting

Last synced: about 1 month ago
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Go package allowing to melt two heterogeneous structures

• Host: GitHub
• URL: https://github.com/mbrt/melting
• Owner: mbrt
• License: mit
• Created: 2015-04-19T13:12:19.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2018-10-24T01:58:07.000Z (about 6 years ago)
• Last Synced: 2024-10-16T11:07:08.209Z (3 months ago)
• Language: Go
• Size: 184 KB
• Stars: 0
• Watchers: 3
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
 melting

=========================================================

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Go package allowing to melt two heterogeneous structures. This is useful for merge configuration structures coming from different sources (e.g. command line vs. configuration file). You can override the configuration file options with the command line flags, even if the types (and so the number and positioning of the fields) are different.

For example:

```go

type Source struct {

    F1  int

    F2  string

}

type Dest struct {

    F1  int

    F3  float32

    F2  string

}

s := Source{F1: 3, F2: "a"}

d := Dest{F1: 4, F2: "b", F3: 3.1}

// Source will override Dest for fields 'F1', 'F2';

// field 'F3' will be ignored.

// Note that fields order does not count.

err := Melt(s, &d)

if err != nil {

    log.Fatalf("cannot assign source to dest, error %v", err)

}

fmt.Printf("Source%v\nDest%v\n", s, d)

```

will output:

```

Source{3 a}

Dest{3 3.1 a}

```