Files
kotlin/compiler/testData/codegen/bytecodeText/stringOperations/nestedConcat.kt
Dmitry Petrov a84c2a6f31 Improve string concatentation & string templates code generation
Reuse StringBuilder instances for nested subexpressions.
(NB StringBuilder instance for string template with a string
concatenation inside an expression entry, such as `"${"a" + "b"}"`,
will not be reused, although that doesn't seem to be a real-life issue).

 #KT-18558 Fixed Target versions 1.1.4
 #KT-13682 Fixed Target versions 1.1.4

Join adjacent strings literals, escaped strings, and constant values
(in a language version that supports const val inlining).
Use StringBuilder#append(char) for single-character constants
(e.g., " " in "$a $b").

 #KT-17280 Fixed Target versions 1.1.4
 #KT-15235 Fixed Target versions 1.1.4
2017-06-27 14:28:42 +03:00

15 lines
382 B
Kotlin
Vendored

fun test1(s1: String, s2: String, s3: String) =
(s1 + s2) + s3
fun test2(s1: String, s2: String, s3: String) =
s1 + (s2 + s3)
fun test3(s1: String, s2: String, s3: String, s4: String) =
((s1 + s2) + ((s3 + s4)))
fun test4(s1: String, s2: String, s3: String) =
"s1: $s1; " +
"s2: $s2; " +
"s3: $s3"
// 4 NEW java/lang/StringBuilder