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Yet another bug with context receivers

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This commit is contained in:
Alexander Nozik 2022-06-25 13:07:52 +03:00
parent f530b7605b
commit 781b185349
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GPG Key ID: F7FCF2DD25C71357
4 changed files with 60 additions and 39 deletions
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20
src/main/kotlin/space/kscience/snark/HtmlData.kt
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@ -13,22 +13,18 @@ import space.kscience.dataforge.meta.string
//TODO replace by VisionForge type
typealias HtmlFragment = TagConsumer<*>.() -> Unit
typealias HtmlFragment = context(PageBuilder, TagConsumer<*>) () -> Unit
typealias HtmlData = Data<HtmlFragment>
fun HtmlData(meta: Meta, content: TagConsumer<*>.() -> Unit): HtmlData = Data(content, meta)
fun HtmlData(meta: Meta, content: context(PageBuilder, TagConsumer<*>) () -> Unit): HtmlData =
Data(content, meta)
val HtmlData.id: String get() = meta["id"]?.string ?: "block[${hashCode()}]"
val HtmlData.language: String? get() = meta["language"].string?.lowercase()
internal val HtmlData.id: String get() = meta["id"]?.string ?: "block[${hashCode()}]"
internal val HtmlData.language: String? get() = meta["language"].string?.lowercase()
val HtmlData.order: Int? get() = meta["order"]?.int
internal val HtmlData.order: Int? get() = meta["order"]?.int
fun TagConsumer<*>.htmlData(data: HtmlData) = runBlocking(Dispatchers.IO) {
data.await().invoke(this@htmlData)
context(PageBuilder) fun FlowContent.htmlData(data: HtmlData) = runBlocking(Dispatchers.IO) {
data.await().invoke(this@PageBuilder, consumer)
}
fun FlowContent.htmlData(data: HtmlData) = runBlocking(Dispatchers.IO) {
data.await().invoke(consumer)
}

15
src/main/kotlin/space/kscience/snark/SiteLayout.kt
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@ -1,9 +1,10 @@
package space.kscience.snark
import kotlinx.coroutines.runBlocking
import kotlinx.html.body
import kotlinx.html.head
import kotlinx.html.title
import space.kscience.dataforge.data.Data
import space.kscience.dataforge.data.DataTreeItem
import space.kscience.dataforge.data.await
import space.kscience.dataforge.data.getItem
import space.kscience.dataforge.meta.Meta
import space.kscience.dataforge.meta.get
@ -117,12 +118,16 @@ fun interface SiteLayout {
const val ASSETS_KEY = "assets"
val INDEX_PAGE_TOKEN = NameToken("index")
val defaultDataRenderer: SiteBuilder.(Data<*>) -> Unit = { data ->
val defaultDataRenderer: SiteBuilder.(Data<*>) -> Unit = { data: Data<*> ->
if (data.type == typeOf<HtmlData>()) {
page {
head {
title = data.meta["title"].string ?: "Untitled page"
}
body {
@Suppress("UNCHECKED_CAST")
val pageFragment: HtmlFragment = runBlocking { data.await() as HtmlFragment }
pageFragment.invoke(consumer)
htmlData(data as HtmlData)
}
}
}
}

34
src/main/kotlin/space/kscience/snark/SnarkPlugin.kt
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@ -1,12 +1,14 @@
package space.kscience.snark
import io.ktor.util.extension
import io.ktor.utils.io.core.Input
import io.ktor.utils.io.core.readBytes
import space.kscience.dataforge.context.*
import space.kscience.dataforge.data.DataTree
import space.kscience.dataforge.io.IOReader
import space.kscience.dataforge.io.JsonMetaFormat
import space.kscience.dataforge.io.asBinary
import space.kscience.dataforge.io.readWith
import space.kscience.dataforge.io.yaml.YamlMetaFormat
import space.kscience.dataforge.io.yaml.YamlPlugin
import space.kscience.dataforge.meta.Meta
@ -27,13 +29,19 @@ import kotlin.reflect.typeOf
* A parser of binary content including priority flag and file extensions
*/
@Type(SnarkParser.TYPE)
interface SnarkParser<out R : Any> : IOReader<R> {
interface SnarkParser<out R> {
val type: KType
val fileExtensions: Set<String>
val priority: Int get() = DEFAULT_PRIORITY
suspend fun parse(bytes: ByteArray, meta: Meta): R = bytes.asBinary().read {
readObject(this)
fun parse(snark: SnarkPlugin, meta: Meta, bytes: ByteArray): R
fun reader(snark: SnarkPlugin, meta: Meta) = object : IOReader<R> {
override val type: KType get() = this@SnarkParser.type
override fun readObject(input: Input): R = parse(snark, meta, input.readBytes())
}
companion object {
@ -47,7 +55,9 @@ internal class SnarkParserWrapper<R : Any>(
val reader: IOReader<R>,
override val type: KType,
override val fileExtensions: Set<String>,
) : SnarkParser<R>, IOReader<R> by reader
) : SnarkParser<R> {
override fun parse(snark: SnarkPlugin, meta: Meta, bytes: ByteArray): R = bytes.asBinary().readWith(reader)
}
/**
* Create a generic parser from reader
@ -65,22 +75,22 @@ class SnarkPlugin : AbstractPlugin() {
override val tag: PluginTag get() = Companion.tag
private val parsers: Map<Name, SnarkParser<*>> by lazy {
private val parsers: Map<Name, SnarkParser<Any>> by lazy {
context.gather(SnarkParser.TYPE, true)
}
fun readDirectory(path: Path): DataTree<Any> = io.readDataDirectory(path) { dataPath, meta ->
val fileExtension = meta[FileData.META_FILE_EXTENSION_KEY].string ?: dataPath.extension
val parser: SnarkParser<*>? = parsers.values.filter { parser ->
val parser: SnarkParser<Any> = parsers.values.filter { parser ->
fileExtension in parser.fileExtensions
}.maxByOrNull {
it.priority
} ?: run {
logger.warn { "The parser is not found for file $dataPath with meta $meta" }
byteArraySnarkParser
}
parser ?: run {
logger.warn { "The parser is not found for file $dataPath with meta $meta" }
byteArrayIOReader
}
parser.reader(this, meta)
}
fun layout(meta: Meta): SiteLayout = when (meta[SiteLayout.LAYOUT_KEY]) {
@ -95,7 +105,7 @@ class SnarkPlugin : AbstractPlugin() {
"yaml".asName() to SnarkParser(YamlMetaFormat, "yaml", "yml"),
"png".asName() to SnarkParser(ImageIOReader, "png"),
"jpg".asName() to SnarkParser(ImageIOReader, "jpg", "jpeg"),
"gif".asName() to SnarkParser(ImageIOReader, "jpg", "jpeg"),
"gif".asName() to SnarkParser(ImageIOReader, "gif"),
)
else -> super.content(target)
}
@ -109,5 +119,7 @@ class SnarkPlugin : AbstractPlugin() {
private val byteArrayIOReader = IOReader {
readBytes()
}
private val byteArraySnarkParser = SnarkParser(byteArrayIOReader)
}
}

24
src/main/kotlin/space/kscience/snark/parsers.kt
View File

@ -8,33 +8,41 @@ import org.intellij.markdown.flavours.commonmark.CommonMarkFlavourDescriptor
import org.intellij.markdown.html.HtmlGenerator
import org.intellij.markdown.parser.MarkdownParser
import space.kscience.dataforge.io.IOReader
import space.kscience.dataforge.meta.Meta
import java.awt.image.BufferedImage
import javax.imageio.ImageIO
import kotlin.reflect.KType
import kotlin.reflect.typeOf
internal object SnarkHtmlParser : SnarkParser<HtmlFragment> {
abstract class SnarkTextParser<R> : SnarkParser<R> {
abstract fun parseText(text: String, meta: Meta): R
override fun parse(snark: SnarkPlugin, meta: Meta, bytes: ByteArray): R =
parseText(bytes.decodeToString(), meta)
}
internal object SnarkHtmlParser : SnarkTextParser<HtmlFragment>() {
override val fileExtensions: Set<String> = setOf("html")
override val type: KType = typeOf<HtmlFragment>()
override fun readObject(input: Input): HtmlFragment = {
override fun parseText(text: String, meta: Meta): HtmlFragment = {
div {
unsafe { +input.readText() }
unsafe { +text }
}
}
}
internal object SnarkMarkdownParser : SnarkParser<HtmlFragment> {
internal object SnarkMarkdownParser : SnarkTextParser<HtmlFragment>() {
override val fileExtensions: Set<String> = setOf("markdown", "mdown", "mkdn", "mkd", "md")
override val type: KType = typeOf<HtmlFragment>()
private val markdownFlavor = CommonMarkFlavourDescriptor()
private val markdownParser = MarkdownParser(markdownFlavor)
override fun readObject(input: Input): HtmlFragment {
val src = input.readText()
val parsedTree = markdownParser.buildMarkdownTreeFromString(src)
val htmlString = HtmlGenerator(src, parsedTree, markdownFlavor).generateHtml()
override fun parseText(text: String, meta: Meta): HtmlFragment {
val parsedTree = markdownParser.buildMarkdownTreeFromString(text)
val htmlString = HtmlGenerator(text, parsedTree, markdownFlavor).generateHtml()
return {
div {