Add parsers module

src/parsers/go.py

@@ -0,0 +1,186 @@
+from pathlib import Path
+import re
+
+from src.parsers.base import BaseParser, ParserResult, Entity, EntityType
+
+
+class GoParser(BaseParser):
+    SUPPORTED_EXTENSIONS = [".go"]
+
+    def __init__(self):
+        pass
+
+    def parse(self, file_path: Path, content: str) -> ParserResult:
+        result = ParserResult(file_path=file_path, language="go")
+        try:
+            result.entities = self.extract_entities(content, file_path)
+            result.imports = self.extract_imports(content)
+            return result
+        except Exception as e:
+            result.errors.append(f"Parse error: {str(e)}")
+            return result
+
+    def extract_entities(self, content: str, file_path: Path) -> list[Entity]:
+        entities = []
+        entities.extend(self._extract_functions(content, file_path))
+        entities.extend(self._extract_structs(content, file_path))
+        entities.extend(self._extract_interfaces(content, file_path))
+        return entities
+
+    def _extract_functions(self, content: str, file_path: Path) -> list[Entity]:
+        functions = []
+        lines = content.split('\n')
+        pattern = r'^func\s+([a-zA-Z_][a-zA-Z0-9_]*)\s*\(([^)]*)\)\s*([\w\[\]]+)?\s*\{?'
+
+        for i, line in enumerate(lines):
+            line = line.strip()
+            match = re.match(pattern, line)
+            if match:
+                func_name = match.group(1)
+                params = match.group(2)
+
+                start_line = i + 1
+                end_line = self._find_braces_end(lines, i)
+
+                code_lines = lines[i:end_line]
+                code = '\n'.join(code_lines)
+
+                entity = Entity(
+                    name=func_name,
+                    entity_type=EntityType.FUNCTION,
+                    file_path=file_path,
+                    start_line=start_line,
+                    end_line=end_line,
+                    code=code,
+                    attributes={"parameters": self._parse_go_params(params)},
+                    calls=self._extract_function_calls(code),
+                )
+                functions.append(entity)
+
+        return functions
+
+    def _extract_structs(self, content: str, file_path: Path) -> list[Entity]:
+        structs = []
+        lines = content.split('\n')
+
+        for i, line in enumerate(lines):
+            line = line.strip()
+            match = re.match(r'type\s+([a-zA-Z_][a-zA-Z0-9_]*)\s+struct\s*\{', line)
+            if match:
+                struct_name = match.group(1)
+
+                start_line = i + 1
+                end_line = self._find_braces_end(lines, i)
+
+                code_lines = lines[i:end_line]
+                code = '\n'.join(code_lines)
+
+                entity = Entity(
+                    name=struct_name,
+                    entity_type=EntityType.CLASS,
+                    file_path=file_path,
+                    start_line=start_line,
+                    end_line=end_line,
+                    code=code,
+                )
+                structs.append(entity)
+
+        return structs
+
+    def _extract_interfaces(self, content: str, file_path: Path) -> list[Entity]:
+        interfaces = []
+        lines = content.split('\n')
+
+        for i, line in enumerate(lines):
+            line = line.strip()
+            match = re.match(r'type\s+([a-zA-Z_][a-zA-Z0-9_]*)\s+interface\s*\{', line)
+            if match:
+                iface_name = match.group(1)
+
+                start_line = i + 1
+                end_line = self._find_braces_end(lines, i)
+
+                code_lines = lines[i:end_line]
+                code = '\n'.join(code_lines)
+
+                entity = Entity(
+                    name=iface_name,
+                    entity_type=EntityType.CLASS,
+                    file_path=file_path,
+                    start_line=start_line,
+                    end_line=end_line,
+                    code=code,
+                )
+                interfaces.append(entity)
+
+        return interfaces
+
+    def _parse_go_params(self, params: str) -> list[str]:
+        param_list = []
+        for param in params.split(','):
+            param = param.strip()
+            if param:
+                parts = param.split()
+                if len(parts) >= 2:
+                    param_list.append(parts[0])
+        return param_list
+
+    def _extract_function_calls(self, code: str) -> list[str]:
+        calls = []
+        pattern = r'\b([a-zA-Z_][a-zA-Z0-9_]*)\s*\([^)]*\)'
+        for match in re.finditer(pattern, code):
+            func_name = match.group(1)
+            if func_name not in ['if', 'for', 'switch', 'return', 'panic', 'print', 'println', 'printf']:
+                calls.append(func_name)
+        return list(set(calls))
+
+    def _find_braces_end(self, lines: list[str], start_index: int) -> int:
+        brace_count = 0
+        in_string = False
+        string_char = None
+
+        for i, line in enumerate(lines[start_index:], start_index):
+            for j, char in enumerate(line):
+                if char in ['"', "'"] and (j == 0 or line[j-1] != '\\'):
+                    if not in_string:
+                        in_string = True
+                        string_char = char
+                    elif char == string_char:
+                        in_string = False
+                        string_char = None
+                elif not in_string and char == '{':
+                    brace_count += 1
+                elif not in_string and char == '}':
+                    brace_count -= 1
+                    if brace_count == 0:
+                        return i + 1
+
+        return len(lines)
+
+    def extract_imports(self, content: str) -> list[str]:
+        imports = []
+        lines = content.split('\n')
+
+        import_block = False
+        import_lines = []
+
+        for line in lines:
+            if 'import (' in line:
+                import_block = True
+                continue
+            if import_block:
+                if line.strip() == ')':
+                    break
+                match = re.search(r'"([^"]+)"', line)
+                if match:
+                    import_lines.append(match.group(1))
+            else:
+                match = re.search(r'import\s+"([^"]+)"', line)
+                if match:
+                    import_lines.append(match.group(1))
+
+        imports.extend(import_lines)
+        return imports
+
+    def extract_calls(self, content: str) -> list[str]:
+        return self._extract_function_calls(content)