1255 lines
27 KiB
Plaintext
1255 lines
27 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "markdown",
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"source": [
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"# Sheet"
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],
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"attachments": {},
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"metadata": {
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"datalore": {
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"node_id": "Sheet",
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"type": "MD",
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|
"hide_input_from_viewers": false,
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"hide_output_from_viewers": false,
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"sheet_delimiter": true
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}
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}
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},
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{
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"cell_type": "markdown",
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"source": [
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"# Factories"
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],
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"attachments": {},
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"metadata": {
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"datalore": {
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"node_id": "kfka3l54zO2cbMlMjZser7",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
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|
"hide_output_from_viewers": true
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}
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}
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},
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{
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"cell_type": "code",
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"source": [
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"interface A{\n",
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" val body: String\n",
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"}\n",
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"\n",
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"class B(override val body: String): A{\n",
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" override fun toString() = \"$body B\"\n",
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"}\n",
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"\n",
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"class C(override val body: String): A{\n",
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" override fun toString() = \"$body C\"\n",
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"}\n",
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"\n",
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"fun print(obj: A){\n",
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" println(obj)\n",
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"}"
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],
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"metadata": {
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"datalore": {
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|
"node_id": "w3yuNLSDBka2TYCaWojtxM",
|
|
"type": "CODE",
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|
"hide_input_from_viewers": true,
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"hide_output_from_viewers": true
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}
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},
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"outputs": [],
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"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"print(C(\"My body\"))"
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],
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"metadata": {
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"datalore": {
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|
"node_id": "uBjdJBVkelSda73M9M9KVt",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
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"hide_output_from_viewers": true
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}
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|
},
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"outputs": [],
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"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"interface AFactory<out T: A>{\n",
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" fun create(body: String): T\n",
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"}\n",
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"\n",
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"object BFactory: AFactory<B>{\n",
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" override fun create(body: String): B = B(body)\n",
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"}\n",
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"\n",
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"fun <T: A> createWithAWord(word: String, factory: AFactory<T>) = factory.create(\"Word: $word\")"
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],
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"metadata": {
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"datalore": {
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"node_id": "bOHAAqwHwERE2KjWbCpYnR",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
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"hide_output_from_viewers": true
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}
|
|
},
|
|
"outputs": [],
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"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"createWithAWord(\"Hello\", BFactory)"
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],
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"metadata": {
|
|
"datalore": {
|
|
"node_id": "FQCZ6JUVsv30zSrNgFusW9",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
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}
|
|
},
|
|
"outputs": [],
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|
"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"fun <T: A> createWithAWord(word: String, factoryFunction: (String) -> T) = factoryFunction(\"Word: $word\")"
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],
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"metadata": {
|
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"datalore": {
|
|
"node_id": "A60omBLPluLVcheSHMCwbO",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
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"hide_output_from_viewers": true
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}
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},
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"outputs": [],
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"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"createWithAWord(\"Hello\", ::B)"
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],
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"metadata": {
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"datalore": {
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"node_id": "NjSa4JlkOMYs1wcUFMkxqb",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
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"hide_output_from_viewers": true
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}
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},
|
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"outputs": [],
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"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"createWithAWord(\"Hello\"){body -> B(\">\\t$body\")}"
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],
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"metadata": {
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"datalore": {
|
|
"node_id": "TvX8qzziDGxZWf044iqHO3",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
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"hide_output_from_viewers": true
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}
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},
|
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"outputs": [],
|
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"execution_count": null
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},
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{
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"cell_type": "markdown",
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"source": [
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"# Factory functions"
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],
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"attachments": {},
|
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"metadata": {
|
|
"datalore": {
|
|
"node_id": "3iPAMgURNX1IdwhklIXETa",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
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"hide_output_from_viewers": true
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}
|
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}
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},
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{
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"cell_type": "code",
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"source": [
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"data class Client(val url: String)\n",
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"\n",
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"interface Request{\n",
|
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" val client: Client\n",
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"}\n",
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"\n",
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"data class RequestImpl(override val client: Client): Request{\n",
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"// constructor(url: String): this(Client(url))\n",
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"}"
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],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "yVwMw3CpejJHhnEQDCab6g",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
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},
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{
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"cell_type": "code",
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"source": [
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"fun Request(url: String): Request{\n",
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" return RequestImpl(Client(url))\n",
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"}"
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|
],
|
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"metadata": {
|
|
"datalore": {
|
|
"node_id": "72D1rEcXVM7hutTX65ouiE",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
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{
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"cell_type": "code",
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"source": [
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"Request(\"DDD\")"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "9Y1icG6BtLX5P0uF879Baq",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
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|
"source": [
|
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"listOf(1,2,3)"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "3yvFzSrCRK7m3o90gysDVm",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
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},
|
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{
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"cell_type": "markdown",
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"source": [
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"# Lazy"
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|
],
|
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"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "IttR7MZNzaf78FGtuNcLEx",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
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{
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"cell_type": "code",
|
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"source": [
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"class WithLazy{\n",
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" val prop = 2\n",
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" get(){\n",
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" println(\"Hit $field\")\n",
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" return field\n",
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" }\n",
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"\n",
|
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" val lazyProp by lazy{\n",
|
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" println(\"Hit lazy\")\n",
|
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" 2\n",
|
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" }\n",
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"}"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "h0jgOzZDe8PiryzcHnNdBG",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val withLazy = WithLazy()"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "5lXgZjAPOpwswgQpZIC0NO",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
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"withLazy.prop\n",
|
|
"withLazy.prop\n",
|
|
"withLazy.prop"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "C6VAvJWSYieH6LGfrgNvQ5",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"withLazy.lazyProp\n",
|
|
"withLazy.lazyProp\n",
|
|
"withLazy.lazyProp"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "rJLM2Kv6yvJQf9bNMpcsB9",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Builder"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "XYoUXQu8GD51C080v5thFD",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
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"data class Buildable(\n",
|
|
" var a: Int = 1,\n",
|
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" var b: Int = 2,\n",
|
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" var c: Int = 3\n",
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"){\n",
|
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" fun setABC(value: Int){\n",
|
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" a = value\n",
|
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" b = value\n",
|
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" c = value\n",
|
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" }\n",
|
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"}\n",
|
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"\n",
|
|
"// Buildable.builder()\n",
|
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"// .setA(1)\n",
|
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"// .setB(2)\n",
|
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"// .setC(3)\n",
|
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"// .setABC(1)\n",
|
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"// .build()"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "nlm610q2oEsKlSDE1pXtkG",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
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"Buildable(b = 5)"
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|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "EQoUX3r984KJvt9tkpy3Wd",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
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"Buildable().apply { \n",
|
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" a = 1\n",
|
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" setABC(a + b + c)\n",
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"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "hJnD2AzKDTgYkrZoyf31Hd",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"fun Buildable(block: Buildable.()-> Unit): Buildable = Buildable().apply(block)\n",
|
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"\n",
|
|
"Buildable{ \n",
|
|
" a = 1\n",
|
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" setABC(a + b + c)\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "eybgzzEc7H4Px2nL7CKvvt",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Multiton"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "g33v0kYJUYOULVwSfxeGhB",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class Multiton private constructor(val name: String){\n",
|
|
" init{\n",
|
|
" println(\"Multiton $name created\")\n",
|
|
" }\n",
|
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" \n",
|
|
" companion object {\n",
|
|
" private val cache = HashMap<String, Multiton>()\n",
|
|
"\n",
|
|
" fun resolve(name: String) = cache.getOrPut(name){Multiton(name)}\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "jWHHMghzB2djqbkxMUA6Tx",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"Multiton.resolve(\"a\")\n",
|
|
"Multiton.resolve(\"a\")\n",
|
|
"Multiton.resolve(\"b\")\n",
|
|
"Multiton.resolve(\"a\")"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "lc75iGLEUf7H0uXMTaIXHx",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"Multiton(\"v\")"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "q7uzHnibwUrfQT3IbMmcce",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"sealed interface SealedMultiton{\n",
|
|
" object A: SealedMultiton\n",
|
|
" object B: SealedMultiton\n",
|
|
" class Custom(val body: String): SealedMultiton\n",
|
|
"}\n",
|
|
"\n",
|
|
"fun evaluateSealedMultiton(sealed: SealedMultiton) = when(sealed){\n",
|
|
" is SealedMultiton.A-> println(\"A\")\n",
|
|
" is SealedMultiton.B-> println(\"B\")\n",
|
|
" is SealedMultiton.Custom -> println(sealed.body)\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "6GgWOmtJcF5yzCoPf7PbRE",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Adapter"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "YfxaLKY0BwQjCnS48Fkh3z",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val array = doubleArrayOf(1.0,2.0)\n",
|
|
"val list = listOf(1.0,2.0)\n",
|
|
"\n",
|
|
"\n",
|
|
"fun consumeList(l: List<Double>){\n",
|
|
" println(l)\n",
|
|
"}\n",
|
|
"\n",
|
|
"fun convertArrayToList(array: DoubleArray): List<Double> = array.asList()//List(array.size){i -> array[i]}\n",
|
|
"\n",
|
|
"consumeList(convertArrayToList(array))"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "0r5gCS5ICD5utC3vtYhbOb",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Decorator?"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "jsc3UoWftQEDJuUInDWIpe",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"@JvmInline\n",
|
|
"value class EMail(val address: String)\n",
|
|
"\n",
|
|
"fun EMail.validate(): Boolean = TODO()\n",
|
|
"\n",
|
|
"val EMail.server get() = address.substringAfter(\"@\")"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "cML7IAfXcFt8Aab6PWZ0z0",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Delegate"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "ibtt47bWffgOF3rAIxNuLO",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class ValueHolder{\n",
|
|
" var value = 2\n",
|
|
"\n",
|
|
" fun printValue(){\n",
|
|
" println(value)\n",
|
|
" }\n",
|
|
"}\n",
|
|
"\n",
|
|
"ValueHolder().apply { value = 6 }.printValue()"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "yvjapJUSD8MaI46U8mmlF4",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"Bad example"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "IGYgOEliyB7xhgQex6rTRS",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class ModifiedValueHolder: ValueHolder(){\n",
|
|
" override fun printValue(){\n",
|
|
" print(\"value = \")\n",
|
|
" super.printValue()\n",
|
|
" }\n",
|
|
"}\n",
|
|
"\n",
|
|
"ModifiedValueHolder().apply { value = 6 }.printValue()"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "m27RUUy8qf5jZllZknp5o3",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class GoodValueHolder(val valueHolder: ValueHolder = ValueHolder()){\n",
|
|
"\n",
|
|
" var value by valueHolder::value\n",
|
|
"\n",
|
|
" fun printValue(){\n",
|
|
" print(\"value = \")\n",
|
|
" valueHolder.printValue()\n",
|
|
" }\n",
|
|
"}\n",
|
|
"GoodValueHolder().apply { value = 6 }.printValue()"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "OHLrIGtjkN2XQjYacDM8ut",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class CompositeValueHolder(\n",
|
|
" val a: ValueHolder,\n",
|
|
" val b: ValueHolder\n",
|
|
"){\n",
|
|
" fun printValue(){\n",
|
|
" print(\"a = \")\n",
|
|
" a.printValue()\n",
|
|
" println()\n",
|
|
" print(\"b = \")\n",
|
|
" a.printValue()\n",
|
|
"\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "fdNq2E5bTa6zarGwDDqQFj",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class Id(val value: String)"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "3OCnDlksXhltJds6fY0L7v",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"Id(\"d3d\").value"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "MjDAABWvcpMQLzBFN4x91C",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"Id(\"fff\").length"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "525C4u3URrTwsBeZ2sTLud",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Proxy"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "NwAoDBrhHGOMQkkInhobM1",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class StringProxy(val string: String): CharSequence by string{\n",
|
|
" override fun get(index: Int): Char{\n",
|
|
" return if(index < 0) '!' else string[index]\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "x3XnwlrqMLxwzwughZSmqw",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val proxy = StringProxy(\"dddd\")\n",
|
|
"\n",
|
|
"println(proxy[0])\n",
|
|
"println(proxy[-1])"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "ZAprJIO0gNiM69lJSMgPVt",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Observer"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "xF2sXItrdeH2pbwchAI8UQ",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class ObservableValueHolder(defaultValue: Int, val callback: (Int) -> Unit){\n",
|
|
" var value: Int = defaultValue\n",
|
|
" set(value){\n",
|
|
" field = value\n",
|
|
" callback(value)\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "wLHHws3VLVqGyjA3YIdnaa",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val holder = ObservableValueHolder(1){\n",
|
|
" println(\"Changed value = $it\")\n",
|
|
"}\n",
|
|
"holder.value = 6\n",
|
|
"holder.value = 7"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "pAG4a8kqIeaClaAtAOOkwJ",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Visitor"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "0dpe5zY5a0RQW1ueDfxV4W",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"### Classic visitor"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "nePxZT9HQTU2lEhESlhVly",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"interface Structure\n",
|
|
"\n",
|
|
"class StringStructure(val string: String): Structure\n",
|
|
"\n",
|
|
"class IntStructure(val int: Int): Structure\n",
|
|
"\n",
|
|
"class StructureList(val content: List<Structure>): Structure"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "Wo26AfHjCt8mlaZ2yIMcOm",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"fun interface StructureVisitor{\n",
|
|
" fun visit(structure: Structure): Unit\n",
|
|
"}\n",
|
|
"\n",
|
|
"val myStructureVisitor = object: StructureVisitor{\n",
|
|
" override fun visit(structure: Structure){\n",
|
|
" when(structure){\n",
|
|
" is StringStructure -> println(\"It is a StringStructure with value ${structure.string}\")\n",
|
|
" is IntStructure -> println(\"It is a IntStructure with value ${structure.int}\")\n",
|
|
" is StructureList -> structure.content.forEach{ visit(it) }\n",
|
|
" else -> println(\"I don't know what it is\")\n",
|
|
" }\n",
|
|
" }\n",
|
|
"}\n",
|
|
"\n",
|
|
"fun StructureList.visit(visitor: StructureVisitor){\n",
|
|
" visitor.visit(this)\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "7ga1xsthc8oovIBmcC8Cg9",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"fun List<Structure>.asStructure() = StructureList(this)\n",
|
|
"\n",
|
|
"@JvmName(\"stringsAsStruct\")\n",
|
|
"fun List<String>.asStructure() = StructureList(map{StringStructure(it)})\n",
|
|
"\n",
|
|
"val structureList = StructureList(\n",
|
|
" listOf(\n",
|
|
" StringStructure(\"ddd\"),\n",
|
|
" IntStructure(2), \n",
|
|
" IntStructure(7),\n",
|
|
" listOf(\"aaa\", \"bbb\").asStructure()\n",
|
|
" )\n",
|
|
")\n",
|
|
"\n",
|
|
"structureList.visit(myStructureVisitor)"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "lAzMMN1L3TmQl2cVxi36ED",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"### Kotlin idiomatic visiting"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "wvN4YCDwzYUDQfXA7IoRUr",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"sealed interface SealedStructure\n",
|
|
"\n",
|
|
"class StringSealedStructure(val string: String): SealedStructure\n",
|
|
"\n",
|
|
"class IntSealedStructure(val int: Int): SealedStructure"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "GjXhhTAsHL0AUcEzmuypK1",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"fun List<SealedStructure>.visit(visitor: (SealedStructure) -> Unit){\n",
|
|
" forEach(visitor)\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "p58da7MiEz4NeXbk2ZUyiz",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val sealedStructureList = listOf<SealedStructure>(\n",
|
|
" StringSealedStructure(\"ddd\"),\n",
|
|
" IntSealedStructure(2), \n",
|
|
" IntSealedStructure(7),\n",
|
|
")\n",
|
|
"\n",
|
|
"sealedStructureList.visit{ structure ->\n",
|
|
" when(structure){\n",
|
|
" is StringSealedStructure -> println(\"It is a StringSealedStructure with value ${structure.string}\")\n",
|
|
" is IntSealedStructure -> println(\"It is a IntSealedStructure with value ${structure.int}\")\n",
|
|
" else -> {} // why is that?\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "aCfKGNanITfEocl3N0T0Ce",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "EmfBYCTjDyjeCP4LqTIyFg",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"source": [
|
|
"# Observer"
|
|
],
|
|
"attachments": {},
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "Observer",
|
|
"type": "MD",
|
|
"hide_input_from_viewers": false,
|
|
"hide_output_from_viewers": false,
|
|
"sheet_delimiter": true
|
|
}
|
|
}
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"import kotlin.properties.Delegates\n",
|
|
"\n",
|
|
"class ObservableHolder{\n",
|
|
" var observable: Int by Delegates.observable<Int>(1){ property, oldValue, newValue ->\n",
|
|
" println(\"${property.name} $newValue\")\n",
|
|
" }\n",
|
|
"}"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "h2OYBThfWjdp7hhteNH2Lt",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"val holder = ObservableHolder()\n",
|
|
"\n",
|
|
"holder.observable = 5"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "pAzvJyJubYwBrzqNmGLAMj",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [
|
|
"class Response(val header: String, val body: () -> String ){\n",
|
|
" fun onRead(callback: (String) -> Unit){\n",
|
|
" callback(body())\n",
|
|
" }\n",
|
|
"}\n",
|
|
"\n",
|
|
"class Call(val request: String, val onResponse: (Response) -> Unit){\n",
|
|
" fun start(){\n",
|
|
" onResponse(Response(\"header\"){\"body\"})\n",
|
|
" }\n",
|
|
"}\n",
|
|
"\n",
|
|
"Call(\"spc\"){ response->\n",
|
|
" println(response.header)\n",
|
|
" response.onRead{ body->\n",
|
|
" println(body)\n",
|
|
" }\n",
|
|
"}.start()"
|
|
],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "z4D2hzOyzy2Dmpi1QbKMqf",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"source": [],
|
|
"metadata": {
|
|
"datalore": {
|
|
"node_id": "QlpqRBkqqUHN2CUAm2hP3H",
|
|
"type": "CODE",
|
|
"hide_input_from_viewers": true,
|
|
"hide_output_from_viewers": true
|
|
}
|
|
},
|
|
"outputs": [],
|
|
"execution_count": null
|
|
}
|
|
],
|
|
"metadata": {
|
|
"kernelspec": {
|
|
"display_name": "Kotlin",
|
|
"language": "kotlin",
|
|
"name": "kotlin"
|
|
},
|
|
"datalore": {
|
|
"computation_mode": "JUPYTER",
|
|
"package_manager": "pip",
|
|
"base_environment": "default",
|
|
"packages": [],
|
|
"report_row_ids": [],
|
|
"version": 3
|
|
}
|
|
},
|
|
"nbformat": 4,
|
|
"nbformat_minor": 4
|
|
}
|