From 59b75c3bd0632dd3cdbf3aa66a3de84b5d102c1b Mon Sep 17 00:00:00 2001
From: Mark Florisson <eggy.nospam@gmail.com>
Date: Sat, 13 Nov 2010 02:09:33 +0100
Subject: [PATCH] 'cy exec' and 'py-exec' multiline code support

---
 Cython/Debugger/libcython.py |  5 +++--
 Cython/Debugger/libpython.py | 27 ++++++++++++++++++++++++---
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/Cython/Debugger/libcython.py b/Cython/Debugger/libcython.py
index dc4ccb99..1299abaa 100644
--- a/Cython/Debugger/libcython.py
+++ b/Cython/Debugger/libcython.py
@@ -1099,7 +1099,7 @@ class CyGlobals(CyLocals):
                                            prefix='    ')
 
 
-class CyExec(CythonCommand):
+class CyExec(CythonCommand, libpython.PyExec):
     name = '-cy-exec'
     command_class = gdb.COMMAND_STACK
     completer_class = gdb.COMPLETE_NONE
@@ -1153,6 +1153,7 @@ class CyExec(CythonCommand):
             libpython.py_exec.invoke(expr, from_tty)
             return
         
+        expr, input_type = self.readcode(expr)
         executor = libpython.PythonCodeExecutor()
         
         # get the dict of Cython globals and construct a dict in the inferior
@@ -1163,7 +1164,7 @@ class CyExec(CythonCommand):
         
         try:
             self._fill_locals_dict(executor, libpython.pointervalue(local_dict))
-            executor.evalcode(expr, global_dict, local_dict)
+            executor.evalcode(expr, input_type, global_dict, local_dict)
         finally:
             executor.decref(libpython.pointervalue(local_dict))
 
diff --git a/Cython/Debugger/libpython.py b/Cython/Debugger/libpython.py
index 67ec163e..c582e62c 100644
--- a/Cython/Debugger/libpython.py
+++ b/Cython/Debugger/libpython.py
@@ -1901,6 +1901,7 @@ py_cont = PyCont('py-cont')
 py_step.init_breakpoints()
 
 Py_single_input = 256
+Py_file_input = 257
 Py_eval_input = 258
 
 def pointervalue(gdbval):
@@ -1961,7 +1962,7 @@ class PythonCodeExecutor(object):
         # Python strings.
         gdb.parse_and_eval('Py_DecRef((PyObject *) %d)' % pointer)
     
-    def evalcode(self, code, global_dict=None, local_dict=None):
+    def evalcode(self, code, input_type, global_dict=None, local_dict=None):
         """
         Evaluate python code `code` given as a string in the inferior and
         return the result as a gdb.Value. Returns a new reference in the
@@ -1989,7 +1990,7 @@ class PythonCodeExecutor(object):
                 (int) %(start)d,
                 (PyObject *) %(globals)s,
                 (PyObject *) %(locals)d)
-        """ % dict(code=pointer, start=Py_single_input, 
+        """ % dict(code=pointer, start=input_type, 
                    globals=globalsp, locals=localsp)
         
         with FetchAndRestoreError():
@@ -2077,7 +2078,27 @@ class FixGdbCommand(gdb.Command):
 
 class PyExec(gdb.Command):
     
+    def readcode(self, expr):
+        if expr:
+            return expr, Py_single_input
+        else:
+            lines = []
+            while True:
+                try:
+                    line = raw_input('>')
+                except EOFError:
+                    break
+                else:
+                    if line.rstrip() == 'end':
+                        break
+                    
+                    lines.append(line)
+            
+            return '\n'.join(lines), Py_file_input
+        
     def invoke(self, expr, from_tty):
+        expr, input_type = self.readcode(expr)
+        
         executor = PythonCodeExecutor()
         global_dict = gdb.parse_and_eval('PyEval_GetGlobals()')
         local_dict = gdb.parse_and_eval('PyEval_GetLocals()')
@@ -2087,7 +2108,7 @@ class PyExec(gdb.Command):
                                "most recent Python function (relative to the "
                                "selected frame).")
         
-        executor.evalcode(expr, global_dict, local_dict)
+        executor.evalcode(expr, input_type, global_dict, local_dict)
 
 py_exec = FixGdbCommand('py-exec', '-py-exec')
 _py_exec = PyExec("-py-exec", gdb.COMMAND_DATA, gdb.COMPLETE_NONE)
\ No newline at end of file
-- 
2.26.2