todo

error_templates/java/java.go

@@ -24,10 +24,12 @@ func LoadErrorTemplates(errorTemplates *lib.ErrorTemplates) {
 	errorTemplates.MustAdd(java.Language, UnclosedCharacterLiteralError)
 	errorTemplates.MustAdd(java.Language, OperatorCannotBeAppliedError)
 	errorTemplates.MustAdd(java.Language, PrecisionLossError)
+	errorTemplates.MustAdd(java.Language, MissingReturnError)
 	errorTemplates.MustAdd(java.Language, NotAStatementError)
 	errorTemplates.MustAdd(java.Language, IncompatibleTypesError)
 	errorTemplates.MustAdd(java.Language, UninitializedVariableError)
 	errorTemplates.MustAdd(java.Language, AlreadyDefinedError)
+	errorTemplates.MustAdd(java.Language, PrivateAccessError)
 }
 
 func runtimeErrorPattern(errorName string, pattern string) string {

error_templates/java/missing_return_error.go

@@ -0,0 +1,79 @@
+package java
+
+import (
+	"fmt"
+	"strings"
+
+	lib "github.com/nedpals/errgoengine"
+)
+
+type missingReturnErrorCtx struct {
+	NearestMethod lib.SyntaxNode
+}
+
+var MissingReturnError = lib.ErrorTemplate{
+	Name:              "MissingReturnError",
+	Pattern:           comptimeErrorPattern(`missing return statement`),
+	StackTracePattern: comptimeStackTracePattern,
+	OnAnalyzeErrorFn: func(cd *lib.ContextData, m *lib.MainError) {
+		// get nearest method declaration
+		mCtx := missingReturnErrorCtx{}
+		rootNode := lib.WrapNode(m.Document, m.Document.Tree.RootNode())
+		pos := m.ErrorNode.StartPos
+		lib.QueryNode(rootNode, strings.NewReader("(method_declaration) @method"), func(ctx lib.QueryNodeCtx) bool {
+			match := ctx.Cursor.FilterPredicates(ctx.Match, []byte(m.Nearest.Doc.Contents))
+			for _, c := range match.Captures {
+				pointA := c.Node.StartPoint()
+				pointB := c.Node.EndPoint()
+				if uint32(pos.Line) >= pointA.Row+1 && uint32(pos.Line) <= pointB.Row+1 {
+					node := lib.WrapNode(m.Nearest.Doc, c.Node)
+					mCtx.NearestMethod = node
+					return false
+				}
+			}
+			return true
+		})
+		fmt.Println(mCtx.NearestMethod.Text())
+		m.Context = mCtx
+	},
+	OnGenExplainFn: func(cd *lib.ContextData, gen *lib.ExplainGenerator) {
+		gen.Add("This error occurs when a method is declared to return a value, but there is no return statement within the method.")
+	},
+	OnGenBugFixFn: func(cd *lib.ContextData, gen *lib.BugFixGenerator) {
+		ctx := cd.MainError.Context.(missingReturnErrorCtx)
+
+		// TODO
+		gen.Add("Provide a return statement", func(s *lib.BugFixSuggestion) {
+			bodyNode := ctx.NearestMethod.ChildByFieldName("body")
+			lastStartPosInBlock := bodyNode.EndPosition()
+			lastEndPosInBlock := bodyNode.EndPosition()
+			if bodyNode.NamedChildCount() > 0 {
+				lastStartPosInBlock = bodyNode.LastNamedChild().StartPosition()
+				lastEndPosInBlock = bodyNode.LastNamedChild().EndPosition()
+			}
+
+			s.AddStep(
+				"Since the `%s` method is declared to return an `%s`, you need to provide a return statement with the result",
+				ctx.NearestMethod.ChildByFieldName("name").Text(),
+				ctx.NearestMethod.ChildByFieldName("type").Text(),
+			).AddFix(lib.FixSuggestion{
+				NewText:       "\n" + cd.MainError.Document.LineAt(lastStartPosInBlock.Line)[:lastStartPosInBlock.Column] + fmt.Sprintf("return %s;", ctx.NearestMethod.ChildByFieldName("type").Text()),
+				StartPosition: lastEndPosInBlock,
+				EndPosition:   lastEndPosInBlock,
+				Description:   "This ensures that the method returns the sum of the two input numbers.",
+			})
+		})
+
+		gen.Add("Set the method return type to void", func(s *lib.BugFixSuggestion) {
+			s.AddStep(
+				"If you don't intend to return a value from the `%s` method, you can change its return type to `void`.",
+				ctx.NearestMethod.ChildByFieldName("name").Text(),
+			).AddFix(lib.FixSuggestion{
+				NewText:       "void",
+				StartPosition: ctx.NearestMethod.ChildByFieldName("type").StartPosition(),
+				EndPosition:   ctx.NearestMethod.ChildByFieldName("type").EndPosition(),
+				Description:   "This is appropriate if you're using the method for side effects rather than returning a value.",
+			})
+		})
+	},
+}

error_templates/java/private_access_error.go

@@ -0,0 +1,68 @@
+package java
+
+import (
+	"fmt"
+	"strings"
+
+	lib "github.com/nedpals/errgoengine"
+)
+
+type privateAccessErrorCtx struct {
+	ClassDeclarationNode lib.SyntaxNode
+}
+
+var PrivateAccessError = lib.ErrorTemplate{
+	Name:              "PrivateAccessError",
+	Pattern:           comptimeErrorPattern(`(?P<field>\S+) has private access in (?P<class>\S+)`),
+	StackTracePattern: comptimeStackTracePattern,
+	OnAnalyzeErrorFn: func(cd *lib.ContextData, m *lib.MainError) {
+		pCtx := privateAccessErrorCtx{}
+		className := cd.Variables["class"]
+		rootNode := lib.WrapNode(m.Nearest.Doc, m.Nearest.Doc.Tree.RootNode())
+
+		// locate the right node first
+		query := fmt.Sprintf(`((field_access (identifier) . (identifier) @field-name) @field (#eq? @field-name "%s"))`, cd.Variables["field"])
+		lib.QueryNode(rootNode, strings.NewReader(query), func(ctx lib.QueryNodeCtx) bool {
+			match := ctx.Cursor.FilterPredicates(ctx.Match, []byte(m.Nearest.Doc.Contents))
+			for _, c := range match.Captures {
+				node := lib.WrapNode(m.Nearest.Doc, c.Node)
+				m.Nearest = node
+				return false
+			}
+			return true
+		})
+
+		// get class declaration node
+		classQuery := fmt.Sprintf(`(class_declaration name: (identifier) @class-name (#eq? @class-name "%s"))`, className)
+		lib.QueryNode(rootNode, strings.NewReader(classQuery), func(ctx lib.QueryNodeCtx) bool {
+			match := ctx.Cursor.FilterPredicates(ctx.Match, []byte(m.Nearest.Doc.Contents))
+			for _, c := range match.Captures {
+				node := lib.WrapNode(m.Nearest.Doc, c.Node)
+				pCtx.ClassDeclarationNode = node
+				return false
+			}
+			return true
+		})
+
+		m.Context = pCtx
+	},
+	OnGenExplainFn: func(cd *lib.ContextData, gen *lib.ExplainGenerator) {
+		gen.Add("This error occurs when you try to access a private variable from another class, which is not allowed.")
+	},
+	OnGenBugFixFn: func(cd *lib.ContextData, gen *lib.BugFixGenerator) {
+		// ctx := cd.MainError.Context.(privateAccessErrorCtx)
+		fmt.Println(cd.MainError.Nearest.String())
+		fmt.Println(cd.Analyzer.AnalyzeNode(cd.MainError.Nearest))
+
+		gen.Add("Use a public accessor method", func(s *lib.BugFixSuggestion) {
+			// methodCreatorSb := &strings.Builder{}
+
+			// get return type of the private field
+
+			// methodCreatorSb.WriteString("public ")
+
+			// s.AddStep("To access a private variable from another class, create a public accessor method in `%s`", cd.Variables["class"]).
+			// 	AddFix()
+		})
+	},
+}

error_templates/java/test_files/missing_return_error/MissingReturn.java

@@ -0,0 +1,11 @@
+public class MissingReturn {
+    public int addNumbers(int a, int b) {
+        // Missing return statement
+    }
+
+    public static void main(String[] args) {
+        MissingReturn calculator = new MissingReturn();
+        int result = calculator.addNumbers(5, 7);
+        System.out.println("Result: " + result);
+    }
+}

error_templates/java/test_files/missing_return_error/test.txt

@@ -0,0 +1,41 @@
+template: "Java.MissingReturnError"
+---
+MissingReturn.java:4: error: missing return statement
+    }
+    ^
+1 error
+===
+template: "Java.MissingReturnError"
+---
+# MissingReturnError
+This error occurs when a method is declared to return a value, but there is no return statement within the method.
+```
+        // Missing return statement
+    }
+    ^
+
+    public static void main(String[] args) {
+```
+## Steps to fix
+### 1. Provide a return statement
+Since the `addNumbers` method is declared to return an `int`, you need to provide a return statement with the result.
+```diff
+public class MissingReturn {
+    public int addNumbers(int a, int b) {
+-         // Missing return statement
++         // Missing return statement
++         return a;
+    }
+```
+This ensures that the method returns the sum of the two input numbers.
+
+### 2. Set the method return type to void
+If you don't intend to return a value from the `addNumbers` method, you can change its return type to `void`.
+```diff
+public class MissingReturn {
+-     public int addNumbers(int a, int b) {
++     public void addNumbers(int a, int b) {
+        // Missing return statement
+    }
+```
+This is appropriate if you're using the method for side effects rather than returning a value.

error_templates/java/test_files/private_access_error/Main.java

@@ -0,0 +1,12 @@
+public class Main {
+    public static void main(String[] args) {
+        AnotherClass anotherClass = new AnotherClass();
+        // Attempting to access a private variable from another class
+        int value = anotherClass.privateVariable;
+        System.out.println(value);
+    }
+}
+
+class AnotherClass {
+    private int privateVariable = 10;
+}

error_templates/java/test_files/private_access_error/test.txt

@@ -0,0 +1,39 @@
+template: "Java.PrivateAccessError"
+---
+Main.java:5: error: privateVariable has private access in AnotherClass
+        int value = anotherClass.privateVariable;
+                                ^
+1 error
+===
+template: "Java.PrivateAccessError"
+---
+# AlreadyDefinedError
+This error occurs when you try to access a private variable from another class, which is not allowed.
+
+## Steps to fix
+### 1. Use a public accessor method
+1. To access a private variable from another class, create a public accessor method in `AnotherClass`.
+```diff
++ public int getPrivateVariable() {
++     return privateVariable;
++ }
+```
+2. Then, use this method to get the value in the `Main` class.
+```diff
+- int value = anotherClass.privateVariable;
++ int value = anotherClass.getPrivateVariable();
+```
+This way, you respect encapsulation by using a method to access the private variable.
+
+### 2. Make the variable public (not recommended)
+1. If you must access the variable directly, you can make it public, but this is generally not recommended for maintaining encapsulation.
+```diff
+- private int privateVariable = 10;
++ public int privateVariable = 10;
+```
+2. Access it directly in the `Main` class.
+```diff
+- int value = anotherClass.privateVariable;
++ int value = anotherClass.privateVariable;
+```
+Choose the fix that aligns with your design principles. Using an accessor method is a better practice for encapsulation.

languages/java/language.go

@@ -74,6 +74,12 @@ func (an *javaAnalyzer) AnalyzeNode(n lib.SyntaxNode) lib.Symbol {
 
 		sym := an.FindSymbol(n.Text(), int(n.StartByte()))
 		if sym == nil {
+			if n.Type() == "type_identifier" {
+				an.ContextData.
+
+				// mark type as unresolved
+				return lib.UnresolvedSymbol
+			}
 			return BuiltinTypes.NullSymbol
 		}
 

symbols.go

@@ -48,6 +48,7 @@ func NewSymbolKindFromString(str string) SymbolKind {
 
 const (
 	SymbolKindUnknown    SymbolKind = 0
+	SymbolKindUnresolved SymbolKind = iota
 	SymbolKindBuiltin    SymbolKind = iota
 	SymbolKindClass      SymbolKind = iota
 	SymbolKindFunction   SymbolKind = iota
@@ -219,6 +220,22 @@ func (sym ImportSymbol) Location() Location {
 	}
 }
 
+type unresolvedSymbol struct{}
+
+func (sym unresolvedSymbol) Name() string {
+	return "unresolved"
+}
+
+func (sym unresolvedSymbol) Kind() SymbolKind {
+	return SymbolKindUnresolved
+}
+
+func (sym unresolvedSymbol) Location() Location {
+	return Location{}
+}
+
+var UnresolvedSymbol Symbol = unresolvedSymbol{}
+
 // TODO:
 // func (sym ImportSymbol) Children() *SymbolTree {
 // 	// TODO:

tests/java/.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-  "bugbuddy.path": "/Users/nedpals/Documents/coding/bugbuddy-proto/server/cmd/bugbuddy"
+  "bugbuddy.path": "/Users/nedpals/Documents/coding/bugbuddy-proto/server/cmd/bugbuddy",
+  "java.debug.settings.onBuildFailureProceed": true
 }