Merge pull request #7 from mat-1/1.19

1.19

1 files changed, 60 insertions, 0 deletions

diff --git a/codegen/lib/mappings.py b/codegen/lib/mappings.py
new file mode 100644
index 00000000..fb3e8bda
--- /dev/null
+++ b/codegen/lib/mappings.py
@@ -0,0 +1,60 @@
+class Mappings:
+    __slots__ = ('classes', 'fields', 'methods')
+
+    def __init__(self, classes, fields, methods):
+        self.classes = classes
+        self.fields = fields
+        self.methods = methods
+
+    @staticmethod
+    def parse(mappings_txt):
+        classes = {}
+        fields = {}
+        methods = {}
+
+        current_obfuscated_class_name = None
+
+        for line in mappings_txt.splitlines():
+            if line.startswith('#') or line == '':
+                continue
+
+            if line.startswith('    '):
+                # if a line starts with 4 spaces, that means it's a method or a field
+                if '(' in line:
+                    # if it has an opening parenthesis, it's a method
+                    real_name_with_parameters_and_line, obfuscated_name = line.strip().split(' -> ')
+                    real_name_with_parameters = real_name_with_parameters_and_line.split(
+                        ':')[-1]
+
+                    real_name = real_name_with_parameters.split('(')[0]
+                    parameters = real_name_with_parameters.split('(')[1]
+
+                    if current_obfuscated_class_name not in methods:
+                        methods[current_obfuscated_class_name] = {}
+                    methods[current_obfuscated_class_name][
+                        f'{obfuscated_name}({parameters})'] = real_name
+                else:
+                    # otherwise, it's a field
+                    real_name_with_type, obfuscated_name = line.strip().split(' -> ')
+                    real_name = real_name_with_type.split(' ')[1]
+
+                    if current_obfuscated_class_name not in fields:
+                        fields[current_obfuscated_class_name] = {}
+                    fields[current_obfuscated_class_name][obfuscated_name] = real_name
+            else:
+                # otherwise it's a class
+                real_name, obfuscated_name = line.strip(':').split(' -> ')
+                current_obfuscated_class_name = obfuscated_name
+
+                classes[obfuscated_name] = real_name
+
+        return Mappings(classes, fields, methods)
+
+    def get_field(self, obfuscated_class_name, obfuscated_field_name):
+        return self.fields.get(obfuscated_class_name, {}).get(obfuscated_field_name)
+
+    def get_class(self, obfuscated_class_name):
+        return self.classes[obfuscated_class_name]
+
+    def get_method(self, obfuscated_class_name, obfuscated_method_name, obfuscated_signature):
+        return self.methods[obfuscated_class_name][f'{obfuscated_method_name}({obfuscated_signature})']