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This greatly simplifies internal handling of builtin functions by always having one fixed return type.
68 lines
2.1 KiB
Kotlin
68 lines
2.1 KiB
Kotlin
package prog8tests.helpers
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import prog8.ast.IBuiltinFunctions
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import prog8.ast.expressions.Expression
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import prog8.ast.expressions.InferredTypes
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import prog8.ast.expressions.NumericLiteral
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import prog8.code.core.*
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internal object DummyFunctions : IBuiltinFunctions {
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override val names: Set<String> = emptySet()
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override val purefunctionNames: Set<String> = emptySet()
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override fun constValue(
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funcName: String,
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args: List<Expression>,
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position: Position,
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): NumericLiteral? = null
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override fun returnType(funcName: String) = InferredTypes.InferredType.unknown()
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}
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internal object DummyMemsizer : IMemSizer {
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override fun memorySize(dt: DataType) = 0
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override fun memorySize(arrayDt: DataType, numElements: Int) = 0
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}
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internal object DummyStringEncoder : IStringEncoding {
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override fun encodeString(str: String, encoding: Encoding): List<UByte> {
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return emptyList()
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}
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override fun decodeString(bytes: List<UByte>, encoding: Encoding): String {
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return ""
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}
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}
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internal object AsciiStringEncoder : IStringEncoding {
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override fun encodeString(str: String, encoding: Encoding): List<UByte> = str.map { it.code.toUByte() }
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override fun decodeString(bytes: List<UByte>, encoding: Encoding): String {
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return bytes.joinToString()
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}
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}
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internal object DummyCompilationTarget : ICompilationTarget {
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override val name: String = "dummy"
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override val machine: IMachineDefinition
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get() = throw NotImplementedError("dummy")
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override val supportedEncodings = setOf(Encoding.PETSCII, Encoding.SCREENCODES, Encoding.ISO)
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override val defaultEncoding = Encoding.PETSCII
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override fun encodeString(str: String, encoding: Encoding): List<UByte> {
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throw NotImplementedError("dummy")
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}
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override fun decodeString(bytes: List<UByte>, encoding: Encoding): String {
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throw NotImplementedError("dummy")
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}
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override fun memorySize(dt: DataType): Int {
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throw NotImplementedError("dummy")
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}
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override fun memorySize(arrayDt: DataType, numElements: Int): Int {
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throw NotImplementedError("dummy")
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}
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}
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