prog8/compiler/test/TestBuiltinFunctions.kt

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package prog8tests
import io.kotest.core.spec.style.FunSpec
import io.kotest.matchers.shouldBe
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import io.kotest.matchers.shouldNotBe
import prog8.code.core.DataType
import prog8.code.core.NumericDatatypesNoBool
import prog8.code.core.RegisterOrPair
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import prog8.code.target.Cx16Target
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import prog8.compiler.BuiltinFunctions
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import prog8tests.helpers.compileText
class TestBuiltinFunctions: FunSpec({
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test("push pop") {
val src="""
main {
sub start () {
pushw(cx16.r0)
push(cx16.r1L)
pop(cx16.r1L)
popw(cx16.r0)
}
}"""
compileText(Cx16Target(), false, src, writeAssembly = true) shouldNotBe null
}
test("pure func with fixed type") {
val func = BuiltinFunctions.getValue("sgn")
func.name shouldBe "sgn"
func.parameters.size shouldBe 1
func.parameters[0].name shouldBe "value"
func.parameters[0].possibleDatatypes shouldBe NumericDatatypesNoBool
func.pure shouldBe true
func.returnType shouldBe DataType.BYTE
val conv = func.callConvention(listOf(DataType.UBYTE))
conv.params.size shouldBe 1
conv.params[0].dt shouldBe DataType.UBYTE
conv.params[0].reg shouldBe RegisterOrPair.A
conv.params[0].variable shouldBe false
conv.returns.dt shouldBe DataType.BYTE
conv.returns.floatFac1 shouldBe false
conv.returns.reg shouldBe RegisterOrPair.A
}
test("not-pure func with fixed type") {
val func = BuiltinFunctions.getValue("rnd")
func.name shouldBe "rnd"
func.parameters.size shouldBe 0
func.pure shouldBe false
func.returnType shouldBe DataType.UBYTE
val conv = func.callConvention(emptyList())
conv.params.size shouldBe 0
conv.returns.dt shouldBe DataType.UBYTE
conv.returns.floatFac1 shouldBe false
conv.returns.reg shouldBe RegisterOrPair.A
}
test("func without return type") {
val func = BuiltinFunctions.getValue("poke")
func.name shouldBe "poke"
func.parameters.size shouldBe 2
func.parameters[0].name shouldBe "address"
func.parameters[0].possibleDatatypes shouldBe arrayOf(DataType.UWORD)
func.parameters[1].name shouldBe "value"
func.parameters[1].possibleDatatypes shouldBe arrayOf(DataType.UBYTE)
func.pure shouldBe false
func.returnType shouldBe null
val conv = func.callConvention(listOf(DataType.UWORD, DataType.UBYTE))
conv.params.size shouldBe 2
conv.params[0].dt shouldBe DataType.UWORD
conv.params[0].reg shouldBe null
conv.params[0].variable shouldBe true
conv.params[1].dt shouldBe DataType.UBYTE
conv.params[1].reg shouldBe null
conv.params[1].variable shouldBe true
conv.returns.dt shouldBe null
conv.returns.floatFac1 shouldBe false
conv.returns.reg shouldBe null
}
})