Commit df78cdc7 authored by Dag Sverre Seljebotn's avatar Dag Sverre Seljebotn

Introduced code.globalstate.use_utility_code and used it in Buffer.py

parent 218d5959
......@@ -30,8 +30,8 @@ class AnnotationCCodeWriter(CCodeWriter):
self.annotations = create_from.annotations
self.code = create_from.code
def create_new(self, create_from, buffer):
return AnnotationCCodeWriter(create_from, buffer)
def create_new(self, create_from, buffer, copy_formatting):
return AnnotationCCodeWriter(create_from, buffer, copy_formatting)
def write(self, s):
CCodeWriter.write(self, s)
......
This diff is collapsed.
......@@ -127,6 +127,7 @@ class FunctionState(object):
freelist = self.temps_free.get(type)
if freelist is None:
freelist = []
self.temps_free[type] = freelist
freelist.append(name)
......@@ -136,11 +137,15 @@ class GlobalState(object):
# input_file_contents dict contents (=list of lines) of any file that was used as input
# to create this output C code. This is
# used to annotate the comments.
# used_utility_code set(string|int) Ids of used utility code (to avoid reinsertion)
# utilprotowriter CCodeWriter
# utildefwriter CCodeWriter
def __init__(self):
self.filename_table = {}
self.filename_list = []
self.input_file_contents = {}
self.used_utility_code = set()
def lookup_filename(self, filename):
try:
......@@ -162,6 +167,58 @@ class GlobalState(object):
self.input_file_contents[source_desc] = F
return F
def use_utility_code(self, codetup, name=None):
"""
Adds the given utility code to the C file if needed.
codetup should unpack into one prototype code part and one
definition code part, both strings inserted directly in C.
If name is provided, it is used as an identifier to avoid inserting
code twice. Otherwise, id(codetup) is used as such an identifier.
"""
if name is None: name = id(codetup)
if self.check_utility_code_needed_and_register(name):
proto, _def = codetup
self.utilprotowriter.put(proto)
self.utildefwriter.put(_def)
def has_utility_code(self, name):
return name in self.used_utility_code
def use_generated_code(self, func, name, *args, **kw):
"""
Requests that the utility code that func can generate is used in the C
file. func is called like this:
func(proto, definition, name, *args, **kw)
where proto and definition are two CCodeWriter instances; the
former should have the prototype written to it and the other the definition.
The call might happen at some later point (if compiling multiple modules
into a cache for instance), and will only happen once per utility code.
name is used to identify the utility code, so that it isn't regenerated
when the same code is requested again.
"""
if self.check_utility_code_needed_and_register(name):
func(self.utilprotowriter, self.utildefwriter,
name, *args, **kw)
def check_utility_code_needed_and_register(self, name):
if name in self.used_utility_code:
return False
else:
self.used_utility_code.add(name)
return True
def put_utility_code_protos(self, writer):
writer.insert(self.utilprotowriter)
def put_utility_code_defs(self, writer):
writer.insert(self.utildefwriter)
def funccontext_property(name):
def get(self):
......@@ -198,29 +255,34 @@ class CCodeWriter(object):
# globalstate GlobalState contains state global for a C file (input file info,
# utility code, declared constants etc.)
def __init__(self, create_from=None, buffer=None):
def __init__(self, create_from=None, buffer=None, copy_formatting=False):
if buffer is None: buffer = StringIOTree()
self.buffer = buffer
self.marker = None
self.last_marker_line = 0
self.funcstate = None # always start with no function state
if create_from is None:
# Root CCodeWriter
self.funcstate = None
self.level = 0
self.bol = 1
if create_from is None:
# Root CCodeWriter
self.globalstate = GlobalState()
# These needs to be constructed after all state is set, as
# the construction copies over the state
self.globalstate.utilprotowriter = self.new_writer()
self.globalstate.utildefwriter = self.new_writer()
else:
# Use same global state
self.globalstate = create_from.globalstate
# Clone formatting state
if copy_formatting:
self.level = create_from.level
self.bol = create_from.bol
def create_new(self, create_from, buffer):
def create_new(self, create_from, buffer, copy_formatting):
# polymorphic constructor -- very slightly more versatile
# than using __class__
return CCodeWriter(create_from, buffer)
return CCodeWriter(create_from, buffer, copy_formatting)
def copyto(self, f):
self.buffer.copyto(f)
......@@ -232,9 +294,25 @@ class CCodeWriter(object):
self.buffer.write(s)
def insertion_point(self):
other = self.create_new(create_from=self, buffer=self.buffer.insertion_point())
other = self.create_new(create_from=self, buffer=self.buffer.insertion_point(), copy_formatting=True)
return other
def new_writer(self):
"""
Creates a new CCodeWriter connected to the same global state, which
can later be inserted using insert.
"""
return CCodeWriter(create_from=self)
def insert(self, writer):
"""
Inserts the contents of another code writer (created with
the same global state) in the current location.
It is ok to write to the inserted writer also after insertion.
"""
assert writer.globalstate is self.globalstate
self.buffer.insert(writer.buffer)
# Properties delegated to function scope
label_counter = funccontext_property("label_counter")
......
......@@ -1950,6 +1950,10 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
type.typeptr_cname, type.typeobj_cname))
def generate_utility_functions(self, env, code, h_code):
for codetup, name in env.utility_code_list:
code.globalstate.use_utility_code(codetup, name)
code.globalstate.put_utility_code_protos(h_code)
code.putln("")
code.putln("/* Runtime support code */")
code.putln("")
......@@ -1957,9 +1961,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
code.putln("%s = %s;" %
(Naming.filetable_cname, Naming.filenames_cname))
code.putln("}")
for utility_code in env.utility_code_used:
h_code.put(utility_code[0])
code.put(utility_code[1])
code.globalstate.put_utility_code_defs(code)
code.put(PyrexTypes.type_conversion_functions)
code.putln("")
......
......@@ -23,11 +23,12 @@ nice_identifier = re.compile('^[a-zA-Z0-0_]+$').match
class BufferAux:
writable_needed = False
def __init__(self, buffer_info_var, stridevars, shapevars, tschecker):
def __init__(self, buffer_info_var, stridevars, shapevars,
suboffsetvars):
self.buffer_info_var = buffer_info_var
self.stridevars = stridevars
self.shapevars = shapevars
self.tschecker = tschecker
self.suboffsetvars = suboffsetvars
def __repr__(self):
return "<BufferAux %r>" % self.__dict__
......@@ -621,9 +622,6 @@ class Scope:
def use_utility_code(self, new_code, name=None):
self.global_scope().use_utility_code(new_code, name)
def has_utility_code(self, name):
return self.global_scope().has_utility_code(name)
def generate_library_function_declarations(self, code):
# Generate extern decls for C library funcs used.
#if self.pow_function_used:
......@@ -742,8 +740,7 @@ class ModuleScope(Scope):
# doc string Module doc string
# doc_cname string C name of module doc string
# const_counter integer Counter for naming constants
# utility_code_used [string] Utility code to be included
# utility_code_names set(string) (Optional) names for named (often generated) utility code
# utility_code_list [((string, string), string)] Queuing utility codes for forwarding to Code.py
# default_entries [Entry] Function argument default entries
# python_include_files [string] Standard Python headers to be included
# include_files [string] Other C headers to be included
......@@ -777,8 +774,7 @@ class ModuleScope(Scope):
self.doc = ""
self.doc_cname = Naming.moddoc_cname
self.const_counter = 1
self.utility_code_used = []
self.utility_code_names = set()
self.utility_code_list = []
self.default_entries = []
self.module_entries = {}
self.python_include_files = ["Python.h", "structmember.h"]
......@@ -938,24 +934,7 @@ class ModuleScope(Scope):
return "%s%s%d" % (Naming.const_prefix, prefix, n)
def use_utility_code(self, new_code, name=None):
# Add string to list of utility code to be included,
# if not already there (tested using the provided name,
# or 'is' if name=None -- if the utility code is dynamically
# generated, use the name, otherwise it is not needed).
if name is not None:
if name in self.utility_code_names:
return
for old_code in self.utility_code_used:
if old_code is new_code:
return
self.utility_code_used.append(new_code)
self.utility_code_names.add(name)
def has_utility_code(self, name):
# Checks if utility code (that is registered by name) has
# previously been registered. This is useful if the utility code
# is dynamically generated to avoid re-generation.
return name in self.utility_code_names
self.utility_code_list.append((new_code, name))
def declare_c_class(self, name, pos, defining = 0, implementing = 0,
module_name = None, base_type = None, objstruct_cname = None,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment