add json object (#95)

* add json object

Signed-off-by: Flipez <code@brauser.io>

* implement json to object conversion

Signed-off-by: Flipez <code@brauser.io>

* add json tests

Signed-off-by: Flipez <code@brauser.io>

* more tests

Signed-off-by: Flipez <code@brauser.io>

* move content

Signed-off-by: Flipez <code@brauser.io>

* fix test

Signed-off-by: Flipez <code@brauser.io>

* improve tests

Signed-off-by: Flipez <code@brauser.io>

* start docs for json

Signed-off-by: Flipez <code@brauser.io>

* add and generate first docs

Signed-off-by: Flipez <code@brauser.io>

* go tidy

Signed-off-by: Flipez <code@brauser.io>

* enhance docs

Signed-off-by: Flipez <code@brauser.io>

Author: Flipez

docs/content/docs/literals/json.md

@@ -0,0 +1,77 @@
+---
+title: "JSON"
+menu:
+  docs:
+    parent: "literals"
+---
+# JSON
+
+
+
+
+```js
+🚀 > JSON.parse('{"test": 123}')
+=> {"test": 123.0}
+```
+
+## Literal Specific Methods
+
+### parse(STRING)
+> Returns `HASH`
+
+Takes a STRING and parses it to a HASH or ARRAY. Numbers are always FLOAT.
+
+
+```js
+🚀 > JSON.parse('{"test": 123}')
+=> {"test": 123.0}
+🚀 > JSON.parse('["test", 123]')
+=> ["test", 123.0]
+```
+
+
+
+## Generic Literal Methods
+
+### methods()
+> Returns `ARRAY`
+
+Returns an array of all supported methods names.
+
+```js
+🚀 > "test".methods()
+=> [count, downcase, find, reverse!, split, lines, upcase!, strip!, downcase!, size, plz_i, replace, reverse, strip, upcase]
+```
+
+### to_json()
+> Returns `STRING|ERROR`
+
+Returns the object as json notation.
+
+```js
+🚀 > a = {"test": 1234}
+=> {"test": 1234}
+🚀 > a.to_json()
+=> "{"test":1234}"
+```
+
+### type()
+> Returns `STRING`
+
+Returns the type of the object.
+
+```js
+🚀 > "test".type()
+=> "STRING"
+```
+
+### wat()
+> Returns `STRING`
+
+Returns the supported methods with usage information.
+
+```js
+🚀 > true.wat()
+=> BOOLEAN supports the following methods:
+				plz_s()
+```

docs/generate.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/flipez/rocket-lang/object"
 	"os"
 	"text/template"
+
+	"github.com/flipez/rocket-lang/object"
 )
 
 type templateData struct {
@@ -26,6 +27,7 @@ func main() {
 	nil_methods := object.ListObjectMethods()[object.NIL_OBJ]
 	float_methods := object.ListObjectMethods()[object.FLOAT_OBJ]
 	http_methods := object.ListObjectMethods()[object.HTTP_OBJ]
+	json_methods := object.ListObjectMethods()[object.JSON_OBJ]
 
 	tempData := templateData{
 		Title: "String",
@@ -190,6 +192,13 @@ HTTP.listen(3000)
 		DefaultMethods: default_methods}
 	create_doc("docs/templates/literal.md", "docs/content/docs/literals/http.md", tempData)
 
+	tempData = templateData{
+		Title: "JSON",
+		Example: `🚀 > JSON.parse('{"test": 123}')
+=> {"test": 123.0}`,
+		LiteralMethods: json_methods,
+		DefaultMethods: default_methods}
+	create_doc("docs/templates/literal.md", "docs/content/docs/literals/json.md", tempData)
 }
 
 func create_doc(path string, target string, data templateData) bool {

fixtures/data.json

@@ -0,0 +1,6 @@
+{
+  "string": "Kadeem Sawyer",
+  "float": 12.3,
+  "array": ["11137", 1234],
+  "bool": true
+}

go.mod

@@ -1,15 +1,18 @@
 module github.com/flipez/rocket-lang
 
-go 1.17
+go 1.18
 
-require github.com/abiosoft/ishell/v2 v2.0.2
+require (
+	github.com/abiosoft/ishell/v2 v2.0.2
+	github.com/spf13/pflag v1.0.5
+)
 
 require (
+	github.com/abiosoft/ishell v2.0.0+incompatible // indirect
 	github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db // indirect
 	github.com/fatih/color v1.12.0 // indirect
 	github.com/flynn-archive/go-shlex v0.0.0-20150515145356-3f9db97f8568 // indirect
 	github.com/mattn/go-colorable v0.1.8 // indirect
 	github.com/mattn/go-isatty v0.0.12 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae // indirect
+	golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f // indirect
 )

go.sum

@@ -1,9 +1,14 @@
+github.com/abiosoft/ishell v2.0.0+incompatible h1:zpwIuEHc37EzrsIYah3cpevrIc8Oma7oZPxr03tlmmw=
+github.com/abiosoft/ishell v2.0.0+incompatible/go.mod h1:HQR9AqF2R3P4XXpMpI0NAzgHf/aS6+zVXRj14cVk9qg=
 github.com/abiosoft/ishell/v2 v2.0.2 h1:5qVfGiQISaYM8TkbBl7RFO6MddABoXpATrsFbVI+SNo=
 github.com/abiosoft/ishell/v2 v2.0.2/go.mod h1:E4oTCXfo6QjoCart0QYa5m9w4S+deXs/P/9jA77A9Bs=
 github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db h1:CjPUSXOiYptLbTdr1RceuZgSFDQ7U15ITERUGrUORx8=
 github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db/go.mod h1:rB3B4rKii8V21ydCbIzH5hZiCQE7f5E9SzUb/ZZx530=
+github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
 github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
+github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/fatih/color v1.12.0 h1:mRhaKNwANqRgUBGKmnI5ZxEk7QXmjQeCcuYFMX2bfcc=
 github.com/fatih/color v1.12.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
@@ -13,13 +18,17 @@ github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ
 github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+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/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae h1:/WDfKMnPU+m5M4xB+6x4kaepxRw6jWvR5iDRdvjHgy8=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f h1:v4INt8xihDGvnrfjMDVXGxw9wrfxYyCjk0KbXjhR55s=
+golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

object/json.go

@@ -0,0 +1,76 @@
+package object
+
+import (
+	"encoding/json"
+)
+
+type JSON struct{}
+
+func (j *JSON) Type() ObjectType { return JSON_OBJ }
+func (j *JSON) Inspect() string  { return "JSON" }
+func (j *JSON) InvokeMethod(method string, env Environment, args ...Object) Object {
+	return objectMethodLookup(j, method, env, args)
+}
+
+func init() {
+	objectMethods[JSON_OBJ] = map[string]ObjectMethod{
+		"parse": ObjectMethod{
+			description: "Takes a STRING and parses it to a HASH or ARRAY. Numbers are always FLOAT.",
+			example: `🚀 > JSON.parse('{"test": 123}')
+=> {"test": 123.0}
+🚀 > JSON.parse('["test", 123]')
+=> ["test", 123.0]`,
+			returnPattern: [][]string{
+				[]string{HASH_OBJ},
+			},
+			argPattern: [][]string{
+				[]string{STRING_OBJ},
+			},
+			method: func(_ Object, args []Object, _ Environment) Object {
+				var i interface{}
+				input := args[0].(*String).Value
+
+				err := json.Unmarshal([]byte(input), &i)
+
+				if err != nil {
+					return NewErrorFormat("Error while parsing json: %s", err)
+				}
+
+				return interfaceToObject(i)
+			},
+		},
+	}
+}
+
+func interfaceToObject(i interface{}) Object {
+	switch v := i.(type) {
+	case map[string]interface{}:
+		jsonObject := NewHash(nil)
+		for key, val := range v {
+			hp := HashPair{
+				Key:   NewString(key),
+				Value: interfaceToObject(val),
+			}
+
+			jsonObject.Pairs[hp.Key.(Hashable).HashKey()] = hp
+		}
+
+		return jsonObject
+	case []interface{}:
+		jsonArray := NewArray(nil)
+		for _, element := range v {
+			jsonArray.Elements = append(jsonArray.Elements, interfaceToObject(element))
+		}
+		return jsonArray
+	case string:
+		return NewString(v)
+	case float64:
+		return NewFloat(v)
+	case bool:
+		if v {
+			return TRUE
+		}
+		return FALSE
+	}
+	return NIL
+}

object/json_test.go

@@ -0,0 +1,20 @@
+package object_test
+
+import (
+	"testing"
+)
+
+func TestJSONObjectMethods(t *testing.T) {
+	tests := []inputTestCase{
+		{`JSON.nope()`, "undefined method `.nope()` for JSON"},
+		{`JSON.parse("{a}")`, "Error while parsing json: invalid character 'a' looking for beginning of object key string"},
+		{`JSON.parse("{}").type()`, "HASH"},
+		{`JSON.parse("[]").type()`, "ARRAY"},
+		{`a = open("../fixtures/data.json").content(); JSON.parse(a)["string"]`, "Kadeem Sawyer"},
+		{`a = open("../fixtures/data.json").content(); JSON.parse(a)["bool"]`, true},
+		{`a = open("../fixtures/data.json").content(); JSON.parse(a)["float"]`, 12.3},
+		{`a = open("../fixtures/data.json").content(); JSON.parse(a)["array"][1]`, 1234.0},
+	}
+
+	testInput(t, tests)
+}

object/object.go

@@ -48,6 +48,7 @@ const (
 	FILE_OBJ         = "FILE"
 	MODULE_OBJ       = "MODULE"
 	HTTP_OBJ         = "HTTP"
+	JSON_OBJ         = "JSON"
 )
 
 type ObjectMethod struct {

stdlib/std.go

@@ -14,6 +14,7 @@ func init() {
 	RegisterFunction("open", openFunction)
 
 	RegisterClass("HTTP", &object.HTTP{})
+	RegisterClass("JSON", &object.JSON{})
 }
 
 func RegisterFunction(name string, function object.BuiltinFunction) {