Added proper error message on unknown struct memeber. Closes #638

src/main/java/dk/camelot64/kickc/model/types/SymbolTypeInference.java

@@ -43,7 +43,7 @@ public class SymbolTypeInference {
          SymbolType rightType = inferType(symbols, constBin.getRight());
          return constBin.getOperator().inferType(leftType, rightType);
       } else if(rValue instanceof ValueList) {
-         return SymbolType.VAR;          
+         return SymbolType.VAR;
       } else if(rValue instanceof PointerDereference) {
          SymbolType pointerType = inferType(symbols, ((PointerDereference) rValue).getPointer());
          if(pointerType instanceof SymbolTypePointer) {
@@ -105,6 +105,8 @@ public class SymbolTypeInference {
             String typeName = ((SymbolTypeStruct) structType).getStructTypeName();
             StructDefinition structDefinition = symbols.getLocalStructDefinition(typeName);
             Variable structMember = structDefinition.getLocalVar(structMemberRef.getMemberName());
+            if(structMember == null)
+               throw new CompileError("Unknown struct member " + structMemberRef.getMemberName() + " in struct " + structType.getTypeName());
             return structMember.getType();
          } else {
             throw new CompileError("Dot applied to non-struct "+ structMemberRef.getStruct().toString());

src/test/java/dk/camelot64/kickc/test/TestPrograms.java

@@ -2073,11 +2073,6 @@ public class TestPrograms {
    }
    */
 
-   @Test
-   public void testStructError6() throws IOException, URISyntaxException {
-      assertError("struct-error-6.c", "Value list cannot initialize type");
-   }
-
    @Test
    public void testStructPtr34() throws IOException, URISyntaxException {
       compileAndCompare("struct-ptr-34.c");
@@ -2254,6 +2249,17 @@ public class TestPrograms {
       compileAndCompare("struct-ptr-0.c");
    }
 
+   @Test
+   public void testStructError7() throws IOException, URISyntaxException {
+      assertError("struct-err-7.c", "Unknown struct member");
+   }
+
+   @Test
+   public void testStructError6() throws IOException, URISyntaxException {
+      assertError("struct-err-6.c", "Value list cannot initialize type");
+   }
+
+
    @Test
    public void testStructError5() throws IOException, URISyntaxException {
       assertError("struct-err-5.c", "Unknown struct member");

src/test/kc/struct-err-7.c

@@ -0,0 +1,13 @@
+// Example of error referencing unknown struct member in rvalue
+
+struct Person {
+    char id;
+    char age;
+};
+
+void main() {
+    struct Person* per;
+    int x = per->qwe;
+}
+
+