Parse Wasm targets from KLib dump's manifest

src/main/kotlin/api/klib/KlibAbiDumpFileMerger.kt

@@ -49,6 +49,7 @@ private const val INDENT_WIDTH = 4
 private const val ALIAS_PREFIX = "// Alias: "
 private const val PLATFORM_PREFIX = "// Platform: "
 private const val NATIVE_TARGETS_PREFIX = "// Native targets: "
+private const val WASM_TARGETS_PREFIX = "// WASM targets: "
 private const val LIBRARY_NAME_PREFIX = "// Library unique name:"
 
 private fun String.depth(): Int {
@@ -263,7 +264,8 @@ internal class KlibAbiDumpMerger {
                     platform = next.split(": ")[1].trim()
                 }
 
-                next.startsWith(NATIVE_TARGETS_PREFIX) -> {
+                next.startsWith(NATIVE_TARGETS_PREFIX) || next.startsWith(WASM_TARGETS_PREFIX) -> {
+                    check(targets == null) { "Targets list was already parsed" }
                     targets = next.split(": ")[1].trim()
                 }
             }
@@ -285,12 +287,12 @@ internal class KlibAbiDumpMerger {
             "The dump does not contain platform name. Please make sure that the manifest was included in the dump"
         }
 
-        if (platformString == "WASM") {
-            // Currently, there's no way to distinguish Wasm targets without explicitly specifying a target name
+        if (platformString == "WASM" && targetsString == null) {
+            // For older dumps, there's no way to distinguish Wasm targets without explicitly specifying a target name
             check(configurableTargetName != null) { "targetName has to be specified for a Wasm target" }
             return setOf(KlibTarget(configurableTargetName))
         }
-        if (platformString != "NATIVE") {
+        if (platformString != "NATIVE" && platformString != "WASM") {
             val platformStringLc = platformString.toLowerCase(Locale.ROOT)
             return if (configurableTargetName == null) {
                 setOf(KlibTarget(platformStringLc))

src/main/kotlin/api/klib/TargetHierarchy.kt

@@ -134,5 +134,7 @@ internal val konanTargetNameMapping = mapOf(
     "ios_arm32" to "iosArm32",
     "watchos_x86" to "watchosX86",
     "linux_arm32_hfp" to "linuxArm32Hfp",
-    "mingw_x86" to "mingwX86"
+    "mingw_x86" to "mingwX86",
+    "wasm-wasi" to "wasmWasi",
+    "wasm-js" to "wasmJs"
 )

src/test/kotlin/tests/KlibAbiMergingTest.kt

@@ -247,6 +247,41 @@ class KlibAbiMergingTest {
         )
     }
 
+    @Test
+    fun explicitWasmTargets() {
+        val klib = KlibAbiDumpMerger()
+        klib.merge(file("/merge/explicitWasmTargets/wasmWasi.abi"))
+        klib.merge(file("/merge/explicitWasmTargets/wasmJs.abi"))
+
+        val merged = dumpToFile(klib)
+
+        assertContentEquals(
+            lines("/merge/explicitWasmTargets/merged.abi"),
+            Files.readAllLines(merged.toPath()).asSequence()
+        )
+    }
+
+    @Test
+    fun renameWasmTargetHavingNameInManifest() {
+        val klib = KlibAbiDumpMerger()
+        klib.merge(file("/merge/explicitWasmTargets/wasmWasi.abi"), "wasm")
+        assertEquals(setOf(KlibTarget.parse("wasmWasi.wasm")), klib.targets)
+    }
+
+    @Test
+    fun wasmDumpWithMultipleTargets() {
+        val klib = KlibAbiDumpMerger()
+        assertFailsWith<IllegalArgumentException>{
+            klib.merge(file("/merge/explicitWasmTargets/wasmMulti.abi"), "wasm")
+        }
+
+        klib.merge(file("/merge/explicitWasmTargets/wasmMulti.abi"))
+        assertContentEquals(
+            lines("/merge/explicitWasmTargets/merged.abi"),
+            Files.readAllLines(dumpToFile(klib).toPath()).asSequence()
+        )
+    }
+
     @Test
     fun unqualifiedWasmTarget() {
         // currently, there's no way to distinguish wasmWasi from wasmJs

src/test/resources/merge/explicitWasmTargets/merged.abi

@@ -0,0 +1,15 @@
+// Klib ABI Dump
+// Targets: [wasmJs, wasmWasi]
+// Rendering settings:
+// - Signature version: 2
+// - Show manifest properties: false
+// - Show declarations: true
+
+// Library unique name: <org.example:bcv-klib-test>
+final class org.example/ShardedClass { // org.example/ShardedClass|null[0]
+    constructor <init>(kotlin/Int) // org.example/ShardedClass.<init>|<init>(kotlin.Int){}[0]
+    final fun add(kotlin/Int): kotlin/Int // org.example/ShardedClass.add|add(kotlin.Int){}[0]
+    final val value // org.example/ShardedClass.value|{}value[0]
+        final fun <get-value>(): kotlin/Int // org.example/ShardedClass.value.<get-value>|<get-value>(){}[0]
+}
+final fun org.example/ShardedClass(kotlin/Int, kotlin/Float, kotlin/Long): org.example/ShardedClass // org.example/ShardedClass|ShardedClass(kotlin.Int;kotlin.Float;kotlin.Long){}[0]

src/test/resources/merge/explicitWasmTargets/wasmJs.abi

@@ -0,0 +1,17 @@
+// Rendering settings:
+// - Signature version: 2
+// - Show manifest properties: false
+// - Show declarations: true
+
+// Library unique name: <org.example:bcv-klib-test>
+// Platform: WASM
+// WASM targets: wasm-js
+// Compiler version: 2.0.255-SNAPSHOT
+// ABI version: 1.8.0
+final class org.example/ShardedClass { // org.example/ShardedClass|null[0]
+    final val value // org.example/ShardedClass.value|{}value[0]
+        final fun <get-value>(): kotlin/Int // org.example/ShardedClass.value.<get-value>|<get-value>(){}[0]
+    constructor <init>(kotlin/Int) // org.example/ShardedClass.<init>|<init>(kotlin.Int){}[0]
+    final fun add(kotlin/Int): kotlin/Int // org.example/ShardedClass.add|add(kotlin.Int){}[0]
+}
+final fun org.example/ShardedClass(kotlin/Int, kotlin/Float, kotlin/Long): org.example/ShardedClass // org.example/ShardedClass|ShardedClass(kotlin.Int;kotlin.Float;kotlin.Long){}[0]

src/test/resources/merge/explicitWasmTargets/wasmMulti.abi

@@ -0,0 +1,17 @@
+// Rendering settings:
+// - Signature version: 2
+// - Show manifest properties: false
+// - Show declarations: true
+
+// Library unique name: <org.example:bcv-klib-test>
+// Platform: WASM
+// WASM targets: wasm-wasi, wasm-js
+// Compiler version: 2.0.255-SNAPSHOT
+// ABI version: 1.8.0
+final class org.example/ShardedClass { // org.example/ShardedClass|null[0]
+    final val value // org.example/ShardedClass.value|{}value[0]
+        final fun <get-value>(): kotlin/Int // org.example/ShardedClass.value.<get-value>|<get-value>(){}[0]
+    constructor <init>(kotlin/Int) // org.example/ShardedClass.<init>|<init>(kotlin.Int){}[0]
+    final fun add(kotlin/Int): kotlin/Int // org.example/ShardedClass.add|add(kotlin.Int){}[0]
+}
+final fun org.example/ShardedClass(kotlin/Int, kotlin/Float, kotlin/Long): org.example/ShardedClass // org.example/ShardedClass|ShardedClass(kotlin.Int;kotlin.Float;kotlin.Long){}[0]

src/test/resources/merge/explicitWasmTargets/wasmWasi.abi

@@ -0,0 +1,17 @@
+// Rendering settings:
+// - Signature version: 2
+// - Show manifest properties: false
+// - Show declarations: true
+
+// Library unique name: <org.example:bcv-klib-test>
+// Platform: WASM
+// WASM targets: wasm-wasi
+// Compiler version: 2.0.255-SNAPSHOT
+// ABI version: 1.8.0
+final class org.example/ShardedClass { // org.example/ShardedClass|null[0]
+    final val value // org.example/ShardedClass.value|{}value[0]
+        final fun <get-value>(): kotlin/Int // org.example/ShardedClass.value.<get-value>|<get-value>(){}[0]
+    constructor <init>(kotlin/Int) // org.example/ShardedClass.<init>|<init>(kotlin.Int){}[0]
+    final fun add(kotlin/Int): kotlin/Int // org.example/ShardedClass.add|add(kotlin.Int){}[0]
+}
+final fun org.example/ShardedClass(kotlin/Int, kotlin/Float, kotlin/Long): org.example/ShardedClass // org.example/ShardedClass|ShardedClass(kotlin.Int;kotlin.Float;kotlin.Long){}[0]