Closed
Description
minimized code
package dotty.tools
package dotc
package parsing
import ast.untpd._
import org.junit.Test
class PositionTest extends ParserTest {
val tq = "\"\"\""
val program = s"""
|class A {
| val expr = 42
| val s0 = s"string1"
| val s1 = s"string1$${expr}string2"
| val s2 = s"string1$${expr}string2$${expr}string3"
| val s0m = s${tq}string1${tq}
| val s1m = s${tq}string1$${expr}string2${tq}
| val s2m = s${tq}string1$${expr}string2$${expr}string3${tq}
|}""".stripMargin
@Test
def interpolationLiteralPosition: Unit = {
val t = parseText(program)
t match {
case PackageDef(_, List(TypeDef(_, Template(_, _, _, statements: List[Tree])))) => {
val interpolations = statements.collect{ case ValDef(_, _, InterpolatedString(_, int)) => int }
val lits = interpolations.flatten.flatMap {
case l @ Literal(_) => List(l)
case Thicket(trees) => trees.collect { case l @ Literal(_) => l }
}
for {
lit <- lits
Literal(c) = lit
str <- List(c.value).collect { case str: String => str}
} {
val fromPos = program.substring(lit.span.start, lit.span.end)
assert(fromPos == str, s"$fromPos == $str")
}
}
}
}
}Compilation output
[info] Compiling 1 Scala source to /home/martijn/dotty/compiler/target/scala-0.24/test-classes ...
expectation
Position of the string literal parts coincides with the actual source position.