aboutsummaryrefslogtreecommitdiff
path: root/plugins/kotlin-as-java/src/main/kotlin/signatures/JavaSignatureProvider.kt
blob: 1f5719eae34ffc3aa738fcbb8aa51b7f1991c384 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
package org.jetbrains.dokka.kotlinAsJava.signatures

import org.jetbrains.dokka.base.DokkaBase
import org.jetbrains.dokka.base.signatures.JvmSignatureUtils
import org.jetbrains.dokka.base.signatures.SignatureProvider
import org.jetbrains.dokka.base.transformers.pages.comments.CommentsToContentConverter
import org.jetbrains.dokka.base.translators.documentables.PageContentBuilder
import org.jetbrains.dokka.links.DRI
import org.jetbrains.dokka.model.*
import org.jetbrains.dokka.model.properties.WithExtraProperties
import org.jetbrains.dokka.pages.*
import org.jetbrains.dokka.plugability.DokkaContext
import org.jetbrains.dokka.plugability.plugin
import org.jetbrains.dokka.plugability.querySingle
import org.jetbrains.dokka.utilities.DokkaLogger
import kotlin.text.Typography.nbsp

class JavaSignatureProvider internal constructor(ctcc: CommentsToContentConverter, logger: DokkaLogger) : SignatureProvider,
    JvmSignatureUtils by JavaSignatureUtils {
    constructor(context: DokkaContext) : this(
        context.plugin<DokkaBase>().querySingle { commentsToContentConverter },
        context.logger
    )
    private val contentBuilder = PageContentBuilder(ctcc, this, logger)

    private val ignoredVisibilities = setOf(JavaVisibility.Default)

    private val ignoredModifiers =
        setOf(KotlinModifier.Open, JavaModifier.Empty, KotlinModifier.Empty, KotlinModifier.Sealed)

    override fun signature(documentable: Documentable): List<ContentNode> = when (documentable) {
        is DFunction -> signature(documentable)
        is DProperty -> signature(documentable)
        is DClasslike -> signature(documentable)
        is DEnumEntry -> signature(documentable)
        is DTypeParameter -> signature(documentable)
        else -> throw NotImplementedError(
            "Cannot generate signature for ${documentable::class.qualifiedName} ${documentable.name}"
        )
    }

    private fun signature(e: DEnumEntry) =
        e.sourceSets.map {
            contentBuilder.contentFor(
                e,
                ContentKind.Symbol,
                setOf(TextStyle.Monospace) + e.stylesIfDeprecated(it),
                sourceSets = setOf(it)
            ) {
                link(e.name, e.dri)
            }
        }

    private fun signature(c: DClasslike) =
        c.sourceSets.map { sourceSet ->
            @Suppress("UNCHECKED_CAST")
            val deprecationStyles = (c as? WithExtraProperties<out Documentable>)
                ?.stylesIfDeprecated(sourceSet)
                ?: emptySet()

            contentBuilder.contentFor(
                c,
                ContentKind.Symbol,
                setOf(TextStyle.Monospace) + deprecationStyles,
                sourceSets = setOf(sourceSet)
            ) {
                c.visibility[sourceSet]?.takeIf { it !in ignoredVisibilities }?.name?.plus(" ")?.let { keyword(it) }

                if (c is DClass) {
                    c.modifier[sourceSet]?.takeIf { it !in ignoredModifiers }?.name?.plus(" ")?.let { keyword(it) }
                    c.modifiers()[sourceSet]?.toSignatureString()?.let { keyword(it) }
                }

                when (c) {
                    is DClass -> keyword("class ")
                    is DInterface -> keyword("interface ")
                    is DEnum -> keyword("enum ")
                    is DObject -> keyword("class ")
                    is DAnnotation -> keyword("@interface ")
                }
                link(c.name!!, c.dri)
                if (c is WithGenerics) {
                    list(c.generics, prefix = "<", suffix = ">",
                        separatorStyles = mainStyles + TokenStyle.Punctuation,
                        surroundingCharactersStyle = mainStyles + TokenStyle.Operator) {
                        +buildSignature(it)
                    }
                }
                if (c is WithSupertypes) {
                    c.supertypes.map { (p, dris) ->
                        val (classes, interfaces) = dris.partition { it.kind == JavaClassKindTypes.CLASS }
                        list(classes, prefix = " extends ", sourceSets = setOf(p),
                            separatorStyles = mainStyles + TokenStyle.Punctuation,
                            surroundingCharactersStyle = mainStyles + TokenStyle.Keyword) {
                            signatureForProjection(it.typeConstructor)
                        }
                        list(interfaces, prefix = " implements ", sourceSets = setOf(p),
                            separatorStyles = mainStyles + TokenStyle.Punctuation,
                            surroundingCharactersStyle = mainStyles + TokenStyle.Keyword) {
                            signatureForProjection(it.typeConstructor)
                        }
                    }
                }
            }
        }

    private fun signature(p: DProperty) =
        p.sourceSets.map {
            contentBuilder.contentFor(
                p,
                ContentKind.Symbol,
                setOf(TextStyle.Monospace, TextStyle.Block) + p.stylesIfDeprecated(it),
                sourceSets = setOf(it)
            ) {
                annotationsBlock(p)
                p.visibility[it]?.takeIf { it !in ignoredVisibilities }?.name?.let { keyword("$it ") }
                p.modifier[it]?.name?.let { keyword("$it ") }
                p.modifiers()[it]?.toSignatureString()?.let { keyword(it) }
                signatureForProjection(p.type)
                text(nbsp.toString())
                link(p.name, p.dri)
            }
        }

    private fun signature(f: DFunction) =
        f.sourceSets.map { sourceSet ->
            contentBuilder.contentFor(
                f,
                ContentKind.Symbol,
                setOf(TextStyle.Monospace, TextStyle.Block) + f.stylesIfDeprecated(sourceSet),
                sourceSets = setOf(sourceSet)
            ) {
                annotationsBlock(f)
                f.modifier[sourceSet]?.takeIf { it !in ignoredModifiers }?.name?.plus(" ")?.let { keyword(it) }
                f.modifiers()[sourceSet]?.toSignatureString()?.let { keyword(it) }
                val returnType = f.type
                signatureForProjection(returnType)
                text(nbsp.toString())
                link(f.name, f.dri, styles = mainStyles + TokenStyle.Function)
                val usedGenerics = if (f.isConstructor) f.generics.filter { f uses it } else f.generics
                list(usedGenerics, prefix = "<", suffix = ">",
                    separatorStyles = mainStyles + TokenStyle.Punctuation,
                    surroundingCharactersStyle = mainStyles + TokenStyle.Operator) {
                    +buildSignature(it)
                }
                punctuation("(")
                if (f.parameters.isNotEmpty()) {
                    parametersBlock(f) {
                        annotationsInline(it)
                        text(it.modifiers()[sourceSet]?.toSignatureString() ?: "", styles = mainStyles + TokenStyle.Keyword)
                        signatureForProjection(it.type)
                        text(nbsp.toString())
                        text(it.name!!)
                    }
                }
                punctuation(")")
            }
        }

    private fun signature(t: DTypeParameter) =
        t.sourceSets.map {
            contentBuilder.contentFor(t, styles = t.stylesIfDeprecated(it), sourceSets = setOf(it)) {
                text(t.name.substringAfterLast("."))
                list(t.bounds, prefix = " extends ",
                    separatorStyles = mainStyles + TokenStyle.Punctuation,
                    surroundingCharactersStyle = mainStyles + TokenStyle.Keyword) {
                    signatureForProjection(it)
                }
            }

        }

    private fun PageContentBuilder.DocumentableContentBuilder.signatureForProjection(p: Projection): Unit = when (p) {
        is TypeParameter -> link(p.name, p.dri)

        is TypeConstructor -> group(styles = emptySet()) {
            link(p.dri.classNames.orEmpty(), p.dri)
            list(p.projections, prefix = "<", suffix = ">",
                separatorStyles = mainStyles + TokenStyle.Punctuation,
                surroundingCharactersStyle = mainStyles + TokenStyle.Operator) {
                signatureForProjection(it)
            }
        }

        is Variance<*> -> group(styles = emptySet()) {
            val variance = when(p) {
                is Covariance<*> -> "? extends "
                is Contravariance<*> -> "? super "
                is Invariance<*> -> ""
            }
            keyword(variance)
            signatureForProjection(p.inner)
        }

        is Star -> operator("?")

        is Nullable -> signatureForProjection(p.inner)

        is JavaObject, is Dynamic -> link("Object", DRI("java.lang", "Object"))
        is Void -> text("void")
        is PrimitiveJavaType -> text(p.name)
        is UnresolvedBound -> text(p.name)
        is TypeAliased -> signatureForProjection(p.inner)
    }
}