Compare commits

...

9 Commits

Author SHA1 Message Date
Alejandro Mery 6df387ffeb chore: update dependencies 1 year ago
Alejandro Mery 123770119e parser: TextParser [WIP] 1 year ago
Alejandro Mery 667803fea5 reflective: IsZero() 1 year ago
Alejandro Mery a38f0c74e8 reflective: Add Reflection{} placeholder and the New() factory 1 year ago
Alejandro Mery 7e0b7cfb47 reflective: introduce UnmarshalTypeError{} 1 year ago
Alejandro Mery fd4f6439b8 reflective: introduce InvalidUnmarshalError{} 1 year ago
Alejandro Mery f74745471d reflective: add placeholder for reflection assistant 1 year ago
Alejandro Mery 2b5dcec64d lexer: add Hint to Error, which is expanded as "%s" instead of "%q" 1 year ago
Alejandro Mery 4aa6233e4f lexer: refactor Error.Error()'s prefix generator 1 year ago
  1. 7
      go.mod
  2. 15
      go.sum
  3. 26
      lexer/error.go
  4. 2
      parser/parser.go
  5. 72
      parser/text.go
  6. 31
      parser/token.go
  7. 2
      reflective/docs.go
  8. 69
      reflective/error.go
  9. 15
      reflective/helpers.go
  10. 27
      reflective/reflection.go

7
go.mod

@ -6,16 +6,17 @@ require github.com/mgechev/revive v1.3.3
require (
github.com/BurntSushi/toml v1.3.2 // indirect
github.com/chavacava/garif v0.0.0-20230608123814-4bd63c2919ab // indirect
github.com/chavacava/garif v0.1.0 // indirect
github.com/fatih/color v1.15.0 // indirect
github.com/fatih/structtag v1.2.0 // indirect
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-isatty v0.0.17 // indirect
github.com/mattn/go-runewidth v0.0.9 // indirect
github.com/mattn/go-isatty v0.0.19 // indirect
github.com/mattn/go-runewidth v0.0.15 // indirect
github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517 // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
github.com/olekukonko/tablewriter v0.0.5 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/rivo/uniseg v0.4.4 // indirect
golang.org/x/sys v0.11.0 // indirect
golang.org/x/tools v0.12.0 // indirect
)

15
go.sum

@ -1,7 +1,7 @@
github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
github.com/chavacava/garif v0.0.0-20230608123814-4bd63c2919ab h1:5JxePczlyGAtj6R1MUEFZ/UFud6FfsOejq7xLC2ZIb0=
github.com/chavacava/garif v0.0.0-20230608123814-4bd63c2919ab/go.mod h1:XMyYCkEL58DF0oyW4qDjjnPWONs2HBqYKI+UIPD+Gww=
github.com/chavacava/garif v0.1.0 h1:2JHa3hbYf5D9dsgseMKAmc/MZ109otzgNFk5s87H9Pc=
github.com/chavacava/garif v0.1.0/go.mod h1:XMyYCkEL58DF0oyW4qDjjnPWONs2HBqYKI+UIPD+Gww=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@ -12,10 +12,11 @@ github.com/fatih/structtag v1.2.0/go.mod h1:mBJUNpUnHmRKrKlQQlmCrh5PuhftFbNv8Ys4
github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-isatty v0.0.17 h1:BTarxUcIeDqL27Mc+vyvdWYSL28zpIhv3RoTdsLMPng=
github.com/mattn/go-isatty v0.0.17/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-runewidth v0.0.9 h1:Lm995f3rfxdpd6TSmuVCHVb/QhupuXlYr8sCI/QdE+0=
github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-runewidth v0.0.9/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
github.com/mattn/go-runewidth v0.0.15 h1:UNAjwbU9l54TA3KzvqLGxwWjHmMgBUVhBiTjelZgg3U=
github.com/mattn/go-runewidth v0.0.15/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517 h1:zpIH83+oKzcpryru8ceC6BxnoG8TBrhgAvRg8obzup0=
github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517/go.mod h1:KQ7+USdGKfpPjXk4Ga+5XxQM4Lm4e3gAogrreFAYpOg=
github.com/mgechev/revive v1.3.3 h1:GUWzV3g185agbHN4ZdaQvR6zrLVYTUSA2ktvIinivK0=
@ -28,6 +29,9 @@ github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
@ -37,6 +41,7 @@ github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcU
github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/tools v0.12.0 h1:YW6HUoUmYBpwSgyaGaZq1fHjrBjX1rlpZ54T6mu2kss=

26
lexer/error.go

@ -25,17 +25,29 @@ type Error struct {
Column int
Content string
Hint string
Err error
}
func (err Error) prefix() string {
switch {
case err.Line > 0 || err.Column > 0:
if err.Filename != "" {
return fmt.Sprintf("%s:%v:%v", err.Filename, err.Line, err.Column)
}
return fmt.Sprintf("%v:%v", err.Line, err.Column)
default:
return err.Filename
}
}
func (err Error) Error() string {
var s []string
switch {
case err.Line > 0 || err.Column > 0:
s = append(s, fmt.Sprintf("%s:%v:%v", err.Filename, err.Line, err.Column))
case err.Filename != "":
s = append(s, err.Filename)
prefix := err.prefix()
if prefix != "" {
s = append(s, prefix)
}
if err.Err != nil {
@ -46,6 +58,10 @@ func (err Error) Error() string {
s = append(s, fmt.Sprintf("%q", err.Content))
}
if err.Hint != "" {
s = append(s, err.Hint)
}
return strings.Join(s, ": ")
}

2
parser/parser.go

@ -0,0 +1,2 @@
// Package parser implements some common logic of asciigoat based parsers
package parser

72
parser/text.go

@ -0,0 +1,72 @@
package parser
import (
"bytes"
"io"
"strings"
"asciigoat.org/core/lexer"
)
// TextParser ...
type TextParser struct {
src *lexer.Reader
pos lexer.Position
}
// Position ...
func (p *TextParser) Position() lexer.Position {
return p.pos
}
// StepLine ...
func (p *TextParser) StepLine() {
p.src.Discard()
p.pos.StepLine()
}
// Step ...
func (p *TextParser) Step() {
s := p.src.Emit()
p.pos.StepN(len(s))
}
// Emit ...
func (p *TextParser) Emit() Token {
t := Token{
Value: p.src.Emit(),
Position: p.pos,
}
p.pos.StepN(t.Len())
return t
}
// Peek ...
func (p *TextParser) Peek() string {
return p.src.String()
}
// NewTextParser ...
func NewTextParser(r io.Reader) *TextParser {
if r == nil {
r = strings.NewReader("")
}
p := &TextParser{
src: lexer.NewReader(r),
}
p.pos.Reset()
return p
}
// NewTextParserBytes ...
func NewTextParserBytes(b []byte) *TextParser {
return NewTextParser(bytes.NewReader(b))
}
// NewTextParserString ...
func NewTextParserString(s string) *TextParser {
return NewTextParser(strings.NewReader(s))
}

31
parser/token.go

@ -0,0 +1,31 @@
package parser
import (
"fmt"
"asciigoat.org/core/lexer"
)
// Token ...
type Token struct {
lexer.Position
Type uint
Value string
}
// Len ...
func (t Token) Len() int {
return len(t.Value)
}
// String generates the '%v' value
func (t Token) String() string {
return t.Value
}
// GoString generates the '%#v' value
func (t Token) GoString() string {
return fmt.Sprintf("Token{Position{%v,%v}, %v, %q}",
t.Line, t.Column, t.Type, t.Value)
}

2
reflective/docs.go

@ -0,0 +1,2 @@
// Package reflective assists reflection-driven unmarshalling
package reflective

69
reflective/error.go

@ -0,0 +1,69 @@
package reflective
import (
"bytes"
"fmt"
"reflect"
)
// An InvalidUnmarshalError describes an invalid argument passed to New.
// (It must be a non-nil pointer.)
type InvalidUnmarshalError struct {
Method string
Prefix string
reflect.Type
}
func (e *InvalidUnmarshalError) Error() string {
var buf bytes.Buffer
if e.Prefix != "" {
_, _ = fmt.Fprintf(&buf, "%s: ", e.Prefix)
}
method := e.Method
if method == "" {
method = "New"
}
_, _ = fmt.Fprintf(&buf, "%s(", method)
switch {
case e.Type == nil:
_, _ = buf.WriteString("nil")
case e.Type.Kind() != reflect.Pointer:
_, _ = fmt.Fprintf(&buf, "%s %s", "non-pointer", e.Type.String())
default:
_, _ = fmt.Fprintf(&buf, "%s %s", "nil", e.Type.String())
}
_, _ = buf.WriteString(")")
return buf.String()
}
// An UnmarshalTypeError tells something went wrong while processing
// a type.
type UnmarshalTypeError struct {
Prefix string
Err error
reflect.Type
}
func (e UnmarshalTypeError) Unwrap() error {
return e.Err
}
func (e UnmarshalTypeError) Error() string {
var buf bytes.Buffer
if e.Prefix != "" {
_, _ = fmt.Fprintf(&buf, "%s: ", e.Prefix)
}
_, _ = fmt.Fprintf(&buf, "%s: %s", e.Type.String(), e.Err)
return buf.String()
}

15
reflective/helpers.go

@ -0,0 +1,15 @@
package reflective
import "reflect"
// IsZero tells if a value is zero either via
// v.IsZero() or reflection.
func IsZero(iv any) bool {
if p, ok := iv.(interface {
IsZero() bool
}); ok {
return p.IsZero()
}
return reflect.ValueOf(iv).IsZero()
}

27
reflective/reflection.go

@ -0,0 +1,27 @@
package reflective
import "reflect"
// Reflection provides Marshalling/Unmarshalling oriented view
// of a value
type Reflection struct {
v reflect.Value
}
// New creates a Reflection of the given pointer
func New(v any) (*Reflection, error) {
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Pointer || rv.IsNil() {
err := &InvalidUnmarshalError{
Type: rv.Type(),
}
return nil, err
}
r := &Reflection{
v: rv,
}
return r, nil
}
Loading…
Cancel
Save