Implement StructField type checking in ContextAnalysis.

src/test/java/StructDefinitionTest.java

@@ -0,0 +1,62 @@
+import de.hsrm.compiler.Klang.ContextAnalysis;
+import de.hsrm.compiler.Klang.GetDefinitions;
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class StructDefinitionTest {
+    @Test
+    void shouldNotThrowIfStructIsWellDefined() {
+        // given
+        var tree = Helper.prepareParser("struct test { a: int; } function foo(): int { return 1; } foo();");
+        var ctxAnal = new ContextAnalysis(Helper.getFuncs(tree), Helper.getStructs(tree), Helper.getEnums(tree));
+
+        // when / then
+        assertDoesNotThrow(() -> ctxAnal.visit(tree));
+    }
+
+    @Test
+    void shouldNotThrowIfStructFieldTypeIsReferringToEnum() {
+        // given
+        var tree = Helper.prepareParser("struct test { a: bar; } enum bar {A,B,C} function foo(): int { return 1; } foo();");
+        var ctxAnal = new ContextAnalysis(Helper.getFuncs(tree), Helper.getStructs(tree), Helper.getEnums(tree));
+
+        // when / then
+        assertDoesNotThrow(() -> ctxAnal.visit(tree));
+    }
+
+    @Test
+    void shouldThrowExceptionIfStructFieldTypeIsNotDefined() {
+        // given
+        var tree = Helper.prepareParser("struct test { a: schwurbel; } function foo(): int { return 1; } foo();");
+        var ctxAnal = new ContextAnalysis(Helper.getFuncs(tree), Helper.getStructs(tree), Helper.getEnums(tree));
+
+        // when / then
+        var e = assertThrows(RuntimeException.class, () -> ctxAnal.visit(tree));
+        assertEquals("Error in line 1:14 Type schwurbel not defined.", e.getMessage());
+    }
+
+    @Test
+    void shouldThrowExceptionIfStructFieldTypeIsReferringToAFunction() {
+        // given
+        var tree = Helper.prepareParser("struct test { a: foo; } function foo(): int { return 1; } foo();");
+        var ctxAnal = new ContextAnalysis(Helper.getFuncs(tree), Helper.getStructs(tree), Helper.getEnums(tree));
+
+        // when / then
+        var e = assertThrows(RuntimeException.class, () -> ctxAnal.visit(tree));
+        assertEquals("Error in line 1:14 Type foo not defined.", e.getMessage());
+    }
+
+    @Test
+    void shouldThrowExceptionIfStructFieldNameIsDuplicated() {
+        // given
+        var tree = Helper.prepareParser("struct test { a: int; a: bool; } function foo(): int { return 1; } foo();");
+        var getDefs = new GetDefinitions(new HashMap<>(), new HashMap<>(), new HashMap<>());
+
+        // when / then
+        var e = assertThrows(RuntimeException.class, () -> getDefs.visit(tree));
+        assertEquals("Error in line 1:22 Duplicate struct field a in struct test.", e.getMessage());
+    }
+}