Alexander Korepanov
79d378f2bd
The patch adopts and reuses the optimizations from the legacy backend. The optimizations remove useless temporary variables, statements and simplify generated JS code. The optimizations can be disabled by `-Xoptimize-generated-js=false`. Related to KT-51139
88 lines
2.5 KiB
Kotlin
Vendored
88 lines
2.5 KiB
Kotlin
Vendored
// TARGET_BACKEND: JS_IR
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// FILE: a.kt
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@JsExport
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fun exclamate(s: String) =
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"$s!"
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@Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
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@JsFun("""
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function (a, b) {
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return _.exclamate(a) +
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_.exclamate(b);
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}
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""")
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external fun exclamateAndConcat(`a!`: String, `b!`: String): String
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@Suppress("INVISIBLE_MEMBER", "INVISIBLE_REFERENCE")
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@JsPolyfill("""
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if (typeof String.prototype.myAwesomePolyfill === "undefined") {
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Object.defineProperty(String.prototype, "myAwesomePolyfill", {
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value: function () {
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return this + "!";
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}
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});
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}
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""")
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internal inline fun String.myAwesomePolyfill(): Boolean =
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asDynamic()
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.myAwesomePolyfill()
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val walter1VarDecl = "var walter1 = _.exclamate('Walter');"
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val jesse1VarDecl = "var jesse1 = _.exclamate(jesse);"
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// FILE: test.kt
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fun box() {
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exclamateAndConcat(
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"hello",
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"world")
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val jesse = "Jesse"
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js(
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"_.exclamate(jesse);") // Local variable is captured
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js(
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"_.exclamate('Walter');") // No local variables captured
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js(
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walter1VarDecl +
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"_.exclamate(walter1);")
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js(
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jesse1VarDecl +
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"_.exclamate(jesse1);")
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"foo".myAwesomePolyfill()
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js("""
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function localFun(hello, world) {
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return '' + hello + ', ' + world + '!';
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}
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""")
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js("localFun('hello', 'world')")
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}
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// EXPECTATIONS
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// a.kt:11 box:
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// a.kt:6 exclamate: s="hello":kotlin.String
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// a.kt:12 box:
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// a.kt:6 exclamate: s="world":kotlin.String
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// test.kt:43 box:
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// test.kt:45 box: jesse="Jesse":kotlin.String
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// a.kt:6 exclamate: s="Jesse":kotlin.String
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// test.kt:47 box: jesse="Jesse":kotlin.String
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// a.kt:6 exclamate: s="Walter":kotlin.String
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// test.kt:49 box: jesse="Jesse":kotlin.String
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// a.kt:6 exclamate: s="Walter":kotlin.String
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// test.kt:49 box: jesse="Jesse":kotlin.String, walter1="Walter!":kotlin.String
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// a.kt:6 exclamate: s="Walter!":kotlin.String
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// test.kt:52 box: jesse="Jesse":kotlin.String, walter1="Walter!":kotlin.String
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// a.kt:6 exclamate: s="Jesse":kotlin.String
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// test.kt:52 box: jesse="Jesse":kotlin.String, walter1="Walter!":kotlin.String, jesse1="Jesse!":kotlin.String
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// a.kt:6 exclamate: s="Jesse!":kotlin.String
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// a.kt:22 value:
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// test.kt:63 box: jesse="Jesse":kotlin.String, walter1="Walter!":kotlin.String, jesse1="Jesse!":kotlin.String
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// test.kt:59 localFun: hello="hello":kotlin.String, world="world":kotlin.String
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// test.kt:64 box: jesse="Jesse":kotlin.String, walter1="Walter!":kotlin.String, jesse1="Jesse!":kotlin.String
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