Output is sent to stdout.
"""
-__author__ = 'nnorwitz@google.com (Neal Norwitz)'
-
-
import os
import re
import sys
_dummy = set
except NameError:
import sets
+
set = sets.Set
_VERSION = (1, 0, 1) # The version of this script.
_INDENT = 2
+def _RenderType(ast_type):
+ """Renders the potentially recursively templated type into a string.
+
+ Args:
+ ast_type: The AST of the type.
+
+ Returns:
+ Rendered string of the type.
+ """
+ # Add modifiers like 'const'.
+ modifiers = ''
+ if ast_type.modifiers:
+ modifiers = ' '.join(ast_type.modifiers) + ' '
+ return_type = modifiers + ast_type.name
+ if ast_type.templated_types:
+ # Collect template args.
+ template_args = []
+ for arg in ast_type.templated_types:
+ rendered_arg = _RenderType(arg)
+ template_args.append(rendered_arg)
+ return_type += '<' + ', '.join(template_args) + '>'
+ if ast_type.pointer:
+ return_type += '*'
+ if ast_type.reference:
+ return_type += '&'
+ return return_type
+
+
+def _GenerateArg(source):
+ """Strips out comments, default arguments, and redundant spaces from a single argument.
+
+ Args:
+ source: A string for a single argument.
+
+ Returns:
+ Rendered string of the argument.
+ """
+ # Remove end of line comments before eliminating newlines.
+ arg = re.sub(r'//.*', '', source)
+
+ # Remove c-style comments.
+ arg = re.sub(r'/\*.*\*/', '', arg)
+
+ # Remove default arguments.
+ arg = re.sub(r'=.*', '', arg)
+
+ # Collapse spaces and newlines into a single space.
+ arg = re.sub(r'\s+', ' ', arg)
+ return arg.strip()
+
+
+def _EscapeForMacro(s):
+ """Escapes a string for use as an argument to a C++ macro."""
+ paren_count = 0
+ for c in s:
+ if c == '(':
+ paren_count += 1
+ elif c == ')':
+ paren_count -= 1
+ elif c == ',' and paren_count == 0:
+ return '(' + s + ')'
+ return s
+
+
def _GenerateMethods(output_lines, source, class_node):
- function_type = (ast.FUNCTION_VIRTUAL | ast.FUNCTION_PURE_VIRTUAL |
- ast.FUNCTION_OVERRIDE)
+ function_type = (
+ ast.FUNCTION_VIRTUAL | ast.FUNCTION_PURE_VIRTUAL | ast.FUNCTION_OVERRIDE)
ctor_or_dtor = ast.FUNCTION_CTOR | ast.FUNCTION_DTOR
indent = ' ' * _INDENT
for node in class_node.body:
# We only care about virtual functions.
- if (isinstance(node, ast.Function) and
- node.modifiers & function_type and
+ if (isinstance(node, ast.Function) and node.modifiers & function_type and
not node.modifiers & ctor_or_dtor):
# Pick out all the elements we need from the original function.
- const = ''
+ modifiers = 'override'
if node.modifiers & ast.FUNCTION_CONST:
- const = 'CONST_'
+ modifiers = 'const, ' + modifiers
+
return_type = 'void'
if node.return_type:
- # Add modifiers like 'const'.
- modifiers = ''
- if node.return_type.modifiers:
- modifiers = ' '.join(node.return_type.modifiers) + ' '
- return_type = modifiers + node.return_type.name
- template_args = [arg.name for arg in node.return_type.templated_types]
- if template_args:
- return_type += '<' + ', '.join(template_args) + '>'
- if len(template_args) > 1:
- for line in [
- '// The following line won\'t really compile, as the return',
- '// type has multiple template arguments. To fix it, use a',
- '// typedef for the return type.']:
- output_lines.append(indent + line)
- if node.return_type.pointer:
- return_type += '*'
- if node.return_type.reference:
- return_type += '&'
- num_parameters = len(node.parameters)
- if len(node.parameters) == 1:
- first_param = node.parameters[0]
- if source[first_param.start:first_param.end].strip() == 'void':
- # We must treat T(void) as a function with no parameters.
- num_parameters = 0
- tmpl = ''
- if class_node.templated_types:
- tmpl = '_T'
- mock_method_macro = 'MOCK_%sMETHOD%d%s' % (const, num_parameters, tmpl)
-
- args = ''
- if node.parameters:
- # Due to the parser limitations, it is impossible to keep comments
- # while stripping the default parameters. When defaults are
- # present, we choose to strip them and comments (and produce
- # compilable code).
- # TODO(nnorwitz@google.com): Investigate whether it is possible to
- # preserve parameter name when reconstructing parameter text from
- # the AST.
- if len([param for param in node.parameters if param.default]) > 0:
- args = ', '.join(param.type.name for param in node.parameters)
- else:
- # Get the full text of the parameters from the start
- # of the first parameter to the end of the last parameter.
- start = node.parameters[0].start
- end = node.parameters[-1].end
- # Remove // comments.
- args_strings = re.sub(r'//.*', '', source[start:end])
- # Condense multiple spaces and eliminate newlines putting the
- # parameters together on a single line. Ensure there is a
- # space in an argument which is split by a newline without
- # intervening whitespace, e.g.: int\nBar
- args = re.sub(' +', ' ', args_strings.replace('\n', ' '))
+ return_type = _EscapeForMacro(_RenderType(node.return_type))
+
+ args = []
+ for p in node.parameters:
+ arg = _GenerateArg(source[p.start:p.end])
+ if arg != 'void':
+ args.append(_EscapeForMacro(arg))
# Create the mock method definition.
- output_lines.extend(['%s%s(%s,' % (indent, mock_method_macro, node.name),
- '%s%s(%s));' % (indent*3, return_type, args)])
+ output_lines.extend([
+ '%sMOCK_METHOD(%s, %s, (%s), (%s));' %
+ (indent, return_type, node.name, ', '.join(args), modifiers)
+ ])
def _GenerateMocks(filename, source, ast_list, desired_class_names):
# Add template args for templated classes.
if class_node.templated_types:
- # TODO(paulchang): The AST doesn't preserve template argument order,
- # so we have to make up names here.
# TODO(paulchang): Handle non-type template arguments (e.g.
# template<typename T, int N>).
- template_arg_count = len(class_node.templated_types.keys())
- template_args = ['T%d' % n for n in range(template_arg_count)]
+
+ # class_node.templated_types is an OrderedDict from strings to a tuples.
+ # The key is the name of the template, and the value is
+ # (type_name, default). Both type_name and default could be None.
+ template_args = class_node.templated_types.keys()
template_decls = ['typename ' + arg for arg in template_args]
lines.append('template <' + ', '.join(template_decls) + '>')
parent_name += '<' + ', '.join(template_args) + '>'
# Close the namespace.
if class_node.namespace:
- for i in range(len(class_node.namespace)-1, -1, -1):
+ for i in range(len(class_node.namespace) - 1, -1, -1):
lines.append('} // namespace %s' % class_node.namespace[i])
lines.append('') # Add an extra newline.
projects / platform / upstream / gtest.git / blobdiff