goto done including 22 tests! vim plugin is not done yet

evaluate.py

@@ -33,6 +33,7 @@ import imports
 import helpers
 
 memoize_caches = []
+statement_path = []
 
 
 class DecoratorNotFound(LookupError):
@@ -69,9 +70,15 @@ class MultiLevelAttributeError(Exception):
 
 
 def clear_caches():
+    global memoize_caches
+    global statement_path
+
     for m in memoize_caches:
         m.clear()
 
+    memoize_caches = []
+    statement_path = []
+
     follow_statement.reset()
 
 
@@ -1038,6 +1045,8 @@ def follow_statement(stmt, seek_name=None):
     :param stmt: contains a statement
     :param scope: contains a scope. If not given, takes the parent of stmt.
     """
+    statement_path.append(stmt)  # important to know for the goto function
+
     debug.dbg('follow_stmt %s (%s)' % (stmt, seek_name))
     call_list = stmt.get_assignment_calls()
     debug.dbg('calls: %s' % call_list)
@@ -1086,10 +1095,10 @@ def follow_call_list(call_list):
                         result.append(call)
                     # The string tokens are just operations (+, -, etc.)
                     elif not isinstance(call, str):
-                        # Ternary operators.
                         #if str(call.name) == 'for':  <--- list comprehensions
                         #    print '\n\ndini mueter'
                         if str(call.name) == 'if':
+                            # Ternary operators.
                             while True:
                                 call = next(calls_iterator)
                                 try:

functions.py

@@ -7,16 +7,10 @@ import modules
 import debug
 import imports
 
-__all__ = ['complete', 'get_completion_parts', 'get_definitions',
-            'set_debug_function']
-
 
 class NotFoundError(Exception):
-    """ A custom error to avoid catching the wrong errors """
-    def __init__(self, scope, path_tuple, message=None):
-        super(NotFoundError, self).__init__(message)
-        self.scope = scope
-        self.path_tuple = path_tuple
+    """ A custom error to avoid catching the wrong exceptions """
+    pass
 
 
 class Completion(object):
@@ -175,14 +169,14 @@ def prepare_goto(source, position, source_path, module, goto_path,
 
     user_stmt = module.parser.user_stmt
     if isinstance(user_stmt, parsing.Import):
-        scopes = [imports.ImportPath(user_stmt, is_like_search)]
+        scopes = [imports.ImportPath2(user_stmt, is_like_search)]
     else:
         # just parse one statement, take it and evaluate it
         r = parsing.PyFuzzyParser(goto_path, source_path)
         try:
             stmt = r.top.statements[0]
         except IndexError:
-            raise NotFoundError(scope, goto_path)
+            raise NotFoundError()
         else:
             stmt.start_pos = position
             stmt.parent = scope
@@ -217,6 +211,36 @@ def get_definitions(source, line, column, source_path):
     return [Definition(s) for s in set(scopes)]
 
 
+def goto(source, line, column, source_path):
+    pos = (line, column)
+    f = modules.ModuleWithCursor(source_path, source=source, position=pos)
+
+    goto_path = f.get_path_under_cursor()
+    goto_path, dot, search_name = get_completion_parts(goto_path)
+
+    # define goto path the right way
+    if not dot:
+        goto_path = search_name
+        search_name = None
+
+    scopes = prepare_goto(source, pos, source_path, f, goto_path)
+    if not dot:
+        try:
+            definitions = [evaluate.statement_path[1]]
+        except IndexError:
+            definitions = scopes
+    else:
+        names = []
+        #print 's', scopes
+        for s in scopes:
+            names += s.get_defined_names()
+        definitions = [n.parent for n in names if n.names[-1] == search_name]
+    #print evaluate.statement_path
+    #print scopes, definitions
+    _clear_caches()
+    return definitions
+
+
 def set_debug_function(func_cb):
     """
     You can define a callback debug function to get all the debug messages.

imports.py

@@ -132,6 +132,7 @@ class ImportPath(object):
             f = builtin.Parser(name=path)
 
         return f.parser.top, rest
+ImportPath2 = ImportPath
 
 def strip_imports(scopes):
     """
@@ -141,6 +142,8 @@ def strip_imports(scopes):
     result = []
     for s in scopes:
         if isinstance(s, parsing.Import):
+            # this is something like a statement following.
+            evaluate.statement_path.append(s)
             try:
                 result += ImportPath(s).follow()
             except ModuleNotFound:

test/run.py

@@ -7,6 +7,7 @@ import traceback
 os.chdir(os.path.dirname(os.path.abspath(__file__)) + '/..')
 sys.path.append('.')
 import functions
+import evaluate
 from _compatibility import unicode, BytesIO
 
 only_line = int(sys.argv[2]) if len(sys.argv) > 2 else None
@@ -77,6 +78,56 @@ def run_definition_test(correct, source, line_nr, line, correct_start, path):
     return 0
 
 
+def run_goto_test(correct, source, line_nr, line, path):
+    """
+    Runs tests for gotos.
+    Tests look like this:
+    >>> abc = 1
+    >>> #! ['abc=1']
+    >>> abc
+
+    Additionally it is possible to add a number which describes to position of
+    the test (otherwise it's just end of line.
+    >>> #! 2 ['abc=1']
+    >>> abc
+
+    For the tests the important things in the end are the positions.
+
+    Return if the test was a fail or not, with 1 for fail and 0 for success.
+    """
+    r = re.match('^(\d+)\s*(.*)$', correct)
+    if r:
+        index = int(r.group(1))
+        correct = r.group(2)
+    else:
+        index = len(line)
+    try:
+        result = functions.goto(source, line_nr, index, path)
+    except Exception:
+        print('test @%s: %s' % (line_nr - 1, line))
+        print(traceback.format_exc())
+        return 1
+    else:
+        lst = []
+        for r in result:
+            if isinstance(r, evaluate.InstanceElement):
+                r = r.var
+            if isinstance(r, (evaluate.Class, evaluate.Instance)):
+                r = 'class ' + str(r.name)
+            elif isinstance(r, (evaluate.Function, evaluate.parsing.Function)):
+                r = 'def ' + str(r.name)
+            else:
+                r = r.get_code().replace('\n', '')
+            lst.append(r)
+        comp_str = str(sorted(lst))
+        if comp_str != correct:
+            print('Solution @%s not right, received %s, wanted %s'\
+                        % (line_nr - 1, comp_str, correct))
+            print result
+            return 1
+    return 0
+
+
 def run_test(source, f_name):
     """
     This is the completion test for some cases. The tests are not unit test
@@ -102,7 +153,9 @@ def run_test(source, f_name):
             # if a list is wanted, use the completion test, otherwise the
             # get_definition test
             path = completion_test_dir + os.path.sep + f_name
-            if correct.startswith('['):
+            if test_type == '!':
+                fails += run_goto_test(correct, source, line_nr, line, path)
+            elif correct.startswith('['):
                 fails += run_completion_test(correct, source, line_nr, line,
                                                                         path)
             else:
@@ -112,8 +165,10 @@ def run_test(source, f_name):
             tests += 1
         else:
             try:
-                r = re.search(r'(?:^|(?<=\s))#\?\s*([^\n]+)', line)
-                correct = r.group(1)
+                r = re.search(r'(?:^|(?<=\s))#([?!])\s*([^\n]+)', line)
+                # test_type is ? for completion and ! for goto
+                test_type = r.group(1)
+                correct = r.group(2)
                 start = r.start()
             except AttributeError:
                 correct = None