implemented CharLiteral.constValue()

codeGeneration/codeGeneration.iml

@@ -5,6 +5,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/test" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
     </content>
     <orderEntry type="jdk" jdkName="openjdk-11" jdkType="JavaSDK" />
     <orderEntry type="sourceFolder" forTests="false" />

codeGeneration/test/AsmGenTests.kt

@@ -21,6 +21,7 @@ import prog8.compilerinterface.*
 import prog8.parser.SourceCode
 import prog8tests.asmgen.helpers.DummyFunctions
 import prog8tests.asmgen.helpers.DummyMemsizer
+import prog8tests.asmgen.helpers.DummyStringEncoder
 import prog8tests.asmgen.helpers.ErrorReporterForTests
 import java.nio.file.Path
 
@@ -73,7 +74,7 @@ locallabel:
         val block = Block("main", null, mutableListOf(labelInBlock, varInBlock, subroutine), false, Position.DUMMY)
 
         val module = Module(mutableListOf(block), Position.DUMMY, SourceCode.Generated("test"))
-        val program = Program("test", DummyFunctions, DummyMemsizer)
+        val program = Program("test", DummyFunctions, DummyMemsizer, DummyStringEncoder)
             .addModule(module)
         module.linkIntoProgram(program)
         return program

codeGeneration/test/helpers/Dummies.kt

@@ -7,6 +7,7 @@ import prog8.ast.expressions.InferredTypes
 import prog8.ast.expressions.NumericLiteralValue
 import prog8.compilerinterface.IMemSizer
 import prog8.ast.base.DataType
+import prog8.compilerinterface.IStringEncoding
 
 
 internal val DummyFunctions = object : IBuiltinFunctions {
@@ -24,3 +25,13 @@ internal val DummyFunctions = object : IBuiltinFunctions {
 internal val DummyMemsizer = object : IMemSizer {
     override fun memorySize(dt: DataType): Int = 0
 }
+
+internal val DummyStringEncoder = object : IStringEncoding {
+    override fun encodeString(str: String, altEncoding: Boolean): List<Short> {
+        return emptyList()
+    }
+
+    override fun decodeString(bytes: List<Short>, altEncoding: Boolean): String {
+        return ""
+    }
+}