Commit f7b4f6fe authored by Robert Bradshaw's avatar Robert Bradshaw

Allow single-character ascii strings to be treated as c character literals.

parent f5aeb375
......@@ -682,6 +682,12 @@ class StringNode(ConstNode):
self.entry = env.add_string_const(self.value)
def coerce_to(self, dst_type, env):
if dst_type.is_int:
if not self.type.is_pyobject and len(self.value) == 1:
return CharNode(self.pos, value=self.value)
else:
error(self.pos, "Only coerce single-character ascii strings can be used as ints.")
return self
# Arrange for a Python version of the string to be pre-allocated
# when coercing to a Python type.
if dst_type.is_pyobject and not self.type.is_pyobject:
......@@ -3355,6 +3361,8 @@ class PrimaryCmpNode(ExprNode, CmpNode):
self.is_pycmp = self.is_python_comparison()
if self.is_pycmp:
self.coerce_operands_to_pyobjects(env)
if self.has_int_operands():
self.coerce_chars_to_ints(env)
if self.cascade:
#self.operand2 = self.operand2.coerce_to_temp(env) #CTT
self.operand2 = self.operand2.coerce_to_simple(env)
......@@ -3387,6 +3395,18 @@ class PrimaryCmpNode(ExprNode, CmpNode):
if self.cascade:
self.cascade.coerce_operands_to_pyobjects(env)
def has_int_operands(self):
return (self.operand1.type.is_int or self.operand2.type.is_int) \
or (self.cascade and self.cascade.has_int_operands())
def coerce_chars_to_ints(self, env):
if self.operand1.type.is_string:
self.operand1 = self.operand1.coerce_to(PyrexTypes.c_uchar_type, env)
if self.operand2.type.is_string:
self.operand2 = self.operand2.coerce_to(PyrexTypes.c_uchar_type, env)
if self.cascade:
self.cascade.coerce_chars_to_ints(env)
def allocate_subexpr_temps(self, env):
self.operand1.allocate_temps(env)
self.operand2.allocate_temps(env)
......@@ -3467,6 +3487,13 @@ class CascadedCmpNode(Node, CmpNode):
if self.cascade:
self.cascade.coerce_operands_to_pyobjects(env)
def has_int_operands(self):
return self.operand2.type.is_int
def coerce_chars_to_ints(self, env):
if self.operand2.type.is_string:
self.operand2 = self.operand2.coerce_to(PyrexTypes.c_uchar_type, env)
def coerce_cascaded_operands_to_temp(self, env):
if self.cascade:
#self.operand2 = self.operand2.coerce_to_temp(env) #CTT
......
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