Исправлена выдача ошибки в include при ошибке парсинга

Author: aNNiMON

src/main/java/com/annimon/ownlang/parser/ast/IncludeStatement.java

@@ -1,5 +1,6 @@
 package com.annimon.ownlang.parser.ast;
 
+import com.annimon.ownlang.exceptions.ParseException;
 import com.annimon.ownlang.parser.Lexer;
 import com.annimon.ownlang.parser.Parser;
 import com.annimon.ownlang.parser.SourceLoader;
@@ -40,7 +41,7 @@ public Statement loadProgram(String path) throws IOException {
         final Parser parser = new Parser(tokens);
         final Statement program = parser.parse();
         if (parser.getParseErrors().hasErrors()) {
-            return null;
+            throw new ParseException(parser.getParseErrors().toString());
         }
         return program;
     }

src/test/resources/expressions/include.own

@@ -0,0 +1,35 @@
+use "std"
+
+def testIncludeClass() {
+  include "src/test/resources/expressions/includeClass.own.txt"
+  obj = new IncludeClass()
+  assertEquals("1", obj.field1)
+  assertEquals(2, obj.field2)
+  assertEquals(42, obj.test())
+}
+
+def testIncludeNotExistsSource() {
+  assertFail(def() {
+    include "src/test.own"
+  })
+}
+
+def testCatchingIncludeNotExistsSource() {
+  res = try(def() {
+    include "src/test.own"
+  }, def(classname, message) = "ok")
+  assertEquals("ok", res)
+}
+
+def testIncludeParseErrorSource() {
+  assertFail(def() {
+    include "src/test/resources/expressions/includeParseErrorSource.own.txt"
+  })
+}
+
+def testCatchingIncludeParseErrorSource() {
+  res = try(def() {
+    include "src/test/resources/expressions/includeParseErrorSource.own.txt"
+  }, def(classname, message) = "ok")
+  assertEquals("ok", res)
+}

src/test/resources/expressions/includeClass.own.txt

@@ -0,0 +1,8 @@
+class IncludeClass {
+  field1 = "1"
+  field2 = 2
+
+  def test() {
+    return 42
+  }
+}

src/test/resources/expressions/includeParseErrorSource.own.txt

@@ -0,0 +1,4 @@
+def test() = return println match x {
+  case case 1
+}
+value = "passed"