prog8/compiler/test/TestCompilerOnCharLit.kt

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Kotlin
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package prog8tests
import org.junit.jupiter.api.Test
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import org.junit.jupiter.api.TestInstance
import prog8.ast.IFunctionCall
import prog8.ast.base.DataType
import prog8.ast.base.VarDeclType
import prog8.ast.expressions.IdentifierReference
import prog8.ast.expressions.NumericLiteralValue
import prog8.compiler.target.Cx16Target
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import prog8tests.helpers.assertSuccess
import prog8tests.helpers.compileText
import kotlin.test.assertEquals
import kotlin.test.assertIs
/**
* ATTENTION: this is just kludge!
* They are not really unit tests, but rather tests of the whole process,
* from source file loading all the way through to running 64tass.
*/
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class TestCompilerOnCharLit {
@Test
fun testCharLitAsRomsubArg() {
val platform = Cx16Target
val result = compileText(platform, false, """
main {
romsub ${"$"}FFD2 = chrout(ubyte ch @ A)
sub start() {
chrout('\n')
}
}
""").assertSuccess()
val program = result.programAst
val startSub = program.entrypoint
val funCall = startSub.statements.filterIsInstance<IFunctionCall>()[0]
assertIs<NumericLiteralValue>(funCall.args[0],
"char literal should have been replaced by ubyte literal")
val arg = funCall.args[0] as NumericLiteralValue
assertEquals(DataType.UBYTE, arg.type)
assertEquals(platform.encodeString("\n", false)[0], arg.number.toShort())
}
@Test
fun testCharVarAsRomsubArg() {
val platform = Cx16Target
val result = compileText(platform, false, """
main {
romsub ${"$"}FFD2 = chrout(ubyte ch @ A)
sub start() {
ubyte ch = '\n'
chrout(ch)
}
}
""").assertSuccess()
val program = result.programAst
val startSub = program.entrypoint
val funCall = startSub.statements.filterIsInstance<IFunctionCall>()[0]
assertIs<IdentifierReference>(funCall.args[0])
val arg = funCall.args[0] as IdentifierReference
val decl = arg.targetVarDecl(program)!!
assertEquals(VarDeclType.VAR, decl.type)
assertEquals(DataType.UBYTE, decl.datatype)
// TODO: assertIs<CharLiteral>(decl.value,
// "char literals should be kept until code gen")
// val initializerValue = decl.value as CharLiteral
// assertEquals('\n', (initializerValue as CharLiteral).value)
assertIs<NumericLiteralValue>(decl.value,
"char literal should have been replaced by ubyte literal")
val initializerValue = decl.value as NumericLiteralValue
assertEquals(DataType.UBYTE, initializerValue.type)
assertEquals(platform.encodeString("\n", false)[0], initializerValue.number.toShort())
}
@Test
fun testCharConstAsRomsubArg() {
val platform = Cx16Target
val result = compileText(platform, false, """
main {
romsub ${"$"}FFD2 = chrout(ubyte ch @ A)
sub start() {
const ubyte ch = '\n'
chrout(ch)
}
}
""").assertSuccess()
val program = result.programAst
val startSub = program.entrypoint
val funCall = startSub.statements.filterIsInstance<IFunctionCall>()[0]
// Now, both is ok for the arg: a) still the IdRef or b) replaced by numeric literal
when (val arg = funCall.args[0]) {
is IdentifierReference -> {
val decl = arg.targetVarDecl(program)!!
assertEquals(VarDeclType.CONST, decl.type)
assertEquals(DataType.UBYTE, decl.datatype)
assertEquals(
platform.encodeString("\n", false)[0],
(decl.value as NumericLiteralValue).number.toShort())
}
is NumericLiteralValue -> {
assertEquals(
platform.encodeString("\n", false)[0],
arg.number.toShort())
}
else -> assertIs<IdentifierReference>(funCall.args[0]) // make test fail
}
}
}