feat: Support query type literal for enum constants

Author: AmrDeveloper

README.md

@@ -71,6 +71,7 @@ SELECT * FROM globals WHERE is_volatile
   | --------------- | ------- | -------------------------------- |
   | name            | Text    | Enumeration name                 |
   | constants_count | Integer | Number of constants in this enum |
+  | type_literal    | Text    | Type literal for enum constants  |
   | file            | Text    | File path                        |
   | line            | Integer | Line at the file path            |
   | column          | Integer | Column at the file path          |

src/data_provider.rs

@@ -202,6 +202,11 @@ fn select_enumss(
                 continue;
             }
 
+            if field_name == "type_literal" {
+                values.push(Value::Text(enumeration.type_literal.to_string()));
+                continue;
+            }
+
             if field_name == "file" {
                 values.push(Value::Text(enumeration.location.file.to_string()));
                 continue;

src/schema.rs

@@ -8,20 +8,24 @@ lazy_static! {
         map.insert("name", DataType::Text);
         map.insert("type", DataType::Text);
         map.insert("signature", DataType::Text);
-        map.insert("args_count", DataType::Integer);
-        map.insert("return_type", DataType::Text);
         map.insert("class_name", DataType::Text);
+
+        map.insert("access_modifier", DataType::Integer);
+
         map.insert("is_method", DataType::Boolean);
         map.insert("is_virtual", DataType::Boolean);
         map.insert("is_pure_virtual", DataType::Boolean);
         map.insert("is_static", DataType::Boolean);
         map.insert("is_const", DataType::Boolean);
-        map.insert("has_template", DataType::Boolean);
-        map.insert("access_modifier", DataType::Integer);
         map.insert("is_variadic", DataType::Boolean);
         map.insert("is_volatile", DataType::Boolean);
         map.insert("is_struct", DataType::Boolean);
+        map.insert("has_template", DataType::Boolean);
 
+        map.insert("return_type", DataType::Text);
+        map.insert("type_literal", DataType::Text);
+
+        map.insert("args_count", DataType::Integer);
         map.insert("bases_count", DataType::Integer);
         map.insert("methods_count", DataType::Integer);
         map.insert("fields_count", DataType::Integer);
@@ -54,7 +58,14 @@ lazy_static! {
         );
         map.insert(
             "enums",
-            vec!["name", "constants_count", "line", "column", "offset"],
+            vec![
+                "name",
+                "constants_count",
+                "type_literal",
+                "line",
+                "column",
+                "offset",
+            ],
         );
         map.insert(
             "functions",

src/visitor/enumeration.rs

@@ -10,6 +10,7 @@ use crate::visitor::location;
 
 pub struct EnumNode {
     pub name: String,
+    pub type_literal: String,
     pub attributes: EnumAttributes,
     pub location: location::SourceLocation,
 }
@@ -65,19 +66,25 @@ extern "C" fn visit_enum_declaration(
 
             let location = location::visit_source_location(cursor);
 
-            let enums = &mut *(data as *mut Vec<EnumNode>);
+            let enum_type = clang_getEnumDeclIntegerType(cursor);
+            let enum_type_spelling = clang_getTypeSpelling(enum_type);
+            let type_literal =
+                CStr::from_ptr(clang_getCString(enum_type_spelling)).to_string_lossy();
 
             let mut attributes = EnumAttributes::default();
             let attributes_pointer = &mut attributes as *mut EnumAttributes as *mut c_void;
             clang_visitChildren(cursor, visit_enum_attributes, attributes_pointer);
 
+            let enums: &mut Vec<EnumNode> = &mut *(data as *mut Vec<EnumNode>);
             enums.push(EnumNode {
                 name: enum_name.to_string(),
+                type_literal: type_literal.to_string(),
                 attributes,
                 location,
             });
 
             clang_disposeString(cursor_name);
+            clang_disposeString(enum_type_spelling);
             return CXChildVisit_Continue;
         }
     }