def require(source_module, target_module, assignments, prefix=""):
"""Load macros from `source_module` in the namespace of
`target_module`. `assignments` maps old names to new names, or
should be the string "ALL". If `prefix` is nonempty, it is
prepended to the name of each imported macro. (This means you get
macros named things like "mymacromodule.mymacro", which looks like
an attribute of a module, although it's actually just a symbol
with a period in its name.)
This function is called from the `require` special form in the compiler.
"""
seen_names = set()
if prefix:
prefix += "."
if assignments != "ALL":
assignments = {mangle(str_type(k)): v for k, v in assignments}
for d in _hy_macros, _hy_tag:
for name, macro in d[source_module].items():
seen_names.add(name)
if assignments == "ALL":
d[target_module][mangle(prefix + name)] = macro
elif name in assignments:
d[target_module][mangle(prefix + assignments[name])] = macro
if assignments != "ALL":
unseen = frozenset(assignments.keys()).difference(seen_names)
if unseen:
raise ImportError("cannot require names: " + repr(list(unseen)))
def require(source_module, target_module, assignments, prefix=""):
"""Load macros from `source_module` in the namespace of
`target_module`. `assignments` maps old names to new names, or
should be the string "ALL". If `prefix` is nonempty, it is
prepended to the name of each imported macro. (This means you get
macros named things like "mymacromodule.mymacro", which looks like
an attribute of a module, although it's actually just a symbol
with a period in its name.)
This function is called from the `require` special form in the compiler.
"""
seen_names = set()
if prefix:
prefix += "."
if assignments != "ALL":
assignments = {mangle(str_type(k)): v for k, v in assignments}
for d in _hy_macros, _hy_tag:
for name, macro in d[source_module].items():
seen_names.add(name)
if assignments == "ALL":
d[target_module][mangle(prefix + name)] = macro
elif name in assignments:
d[target_module][mangle(prefix + assignments[name])] = macro
if assignments != "ALL":
unseen = frozenset(assignments.keys()).difference(seen_names)
if unseen:
raise ImportError("cannot require names: " + repr(list(unseen)))
def __init__(self,
spy=False,
output_fn=None,
locals=None,
filename="<input>"):
self.spy = spy
if output_fn is None:
self.output_fn = repr
elif callable(output_fn):
self.output_fn = output_fn
else:
if "." in output_fn:
parts = [mangle(x) for x in output_fn.split(".")]
module, f = '.'.join(parts[:-1]), parts[-1]
self.output_fn = getattr(importlib.import_module(module), f)
else:
self.output_fn = __builtins__[mangle(output_fn)]
code.InteractiveConsole.__init__(self,
locals=locals,
filename=filename)
# Pre-mangle symbols for repl recent results: *1, *2, *3
self._repl_results_symbols = [
mangle("*{}".format(i + 1)) for i in range(3)
]
self.locals.update({sym: None for sym in self._repl_results_symbols})
def _(fn):
_name = mangle('#{}'.format(name))
if not PY3:
_name = _name.encode('UTF-8')
fn.__name__ = _name
module_name = fn.__module__
if module_name.startswith("hy.core"):
module_name = None
_hy_tag[module_name][mangle(name)] = fn
return fn
def _(fn):
_name = mangle('#{}'.format(name))
if not PY3:
_name = _name.encode('UTF-8')
fn.__name__ = _name
module_name = fn.__module__
if module_name.startswith("hy.core"):
module_name = None
_hy_tag[module_name][mangle(name)] = fn
return fn
def macro(name):
"""Decorator to define a macro called `name`.
This stores the macro `name` in the namespace for the module where it is
defined.
If the module where it is defined is in `hy.core`, then the macro is stored
in the default `None` namespace.
This function is called from the `defmacro` special form in the compiler.
"""
name = mangle(name)
def _(fn):
fn.__name__ = '({})'.format(name)
try:
fn._hy_macro_pass_compiler = hy.inspect.has_kwargs(fn)
except Exception:
# An exception might be raised if fn has arguments with
# names that are invalid in Python.
fn._hy_macro_pass_compiler = False
module_name = fn.__module__
if module_name.startswith("hy.core"):
module_name = None
_hy_macros[module_name][name] = fn
return fn
return _
def macro(name):
"""Decorator to define a macro called `name`.
This stores the macro `name` in the namespace for the module where it is
defined.
If the module where it is defined is in `hy.core`, then the macro is stored
in the default `None` namespace.
This function is called from the `defmacro` special form in the compiler.
"""
name = mangle(name)
def _(fn):
fn.__name__ = '({})'.format(name)
try:
fn._hy_macro_pass_compiler = hy.inspect.has_kwargs(fn)
except Exception:
# An exception might be raised if fn has arguments with
# names that are invalid in Python.
fn._hy_macro_pass_compiler = False
module_name = fn.__module__
if module_name.startswith("hy.core"):
module_name = None
_hy_macros[module_name][name] = fn
return fn
return _
def __init__(self, spy=False, output_fn=None, locals=None,
filename="<input>"):
self.spy = spy
if output_fn is None:
self.output_fn = repr
elif callable(output_fn):
self.output_fn = output_fn
else:
if "." in output_fn:
parts = [mangle(x) for x in output_fn.split(".")]
module, f = '.'.join(parts[:-1]), parts[-1]
self.output_fn = getattr(importlib.import_module(module), f)
else:
self.output_fn = __builtins__[mangle(output_fn)]
code.InteractiveConsole.__init__(self, locals=locals,
filename=filename)
def macroexpand(tree, compiler, once=False):
"""Expand the toplevel macros for the `tree`.
Load the macros from the given `module_name`, then expand the (top-level)
macros in `tree` until we no longer can.
"""
load_macros(compiler.module_name)
while True:
if not isinstance(tree, HyExpression) or tree == []:
break
fn = tree[0]
if fn in ("quote", "quasiquote") or not isinstance(fn, HySymbol):
break
fn = mangle(fn)
m = _hy_macros[compiler.module_name].get(fn) or _hy_macros[None].get(
fn)
if not m:
break
opts = {}
if m._hy_macro_pass_compiler:
opts['compiler'] = compiler
try:
m_copy = make_empty_fn_copy(m)
m_copy(compiler.module_name, *tree[1:], **opts)
except TypeError as e:
msg = "expanding `" + str(tree[0]) + "': "
msg += str(e).replace("<lambda>()", "", 1).strip()
raise HyMacroExpansionError(tree, msg)
try:
obj = m(compiler.module_name, *tree[1:], **opts)
except HyTypeError as e:
if e.expression is None:
e.expression = tree
raise
except Exception as e:
msg = "expanding `" + str(tree[0]) + "': " + repr(e)
raise HyMacroExpansionError(tree, msg)
tree = replace_hy_obj(obj, tree)
if once:
break
tree = wrap_value(tree)
return tree
def macroexpand(tree, compiler, once=False):
"""Expand the toplevel macros for the `tree`.
Load the macros from the given `module_name`, then expand the (top-level)
macros in `tree` until we no longer can.
"""
load_macros(compiler.module_name)
while True:
if not isinstance(tree, HyExpression) or tree == []:
break
fn = tree[0]
if fn in ("quote", "quasiquote") or not isinstance(fn, HySymbol):
break
fn = mangle(fn)
m = _hy_macros[compiler.module_name].get(fn) or _hy_macros[None].get(fn)
if not m:
break
opts = {}
if m._hy_macro_pass_compiler:
opts['compiler'] = compiler
try:
m_copy = make_empty_fn_copy(m)
m_copy(compiler.module_name, *tree[1:], **opts)
except TypeError as e:
msg = "expanding `" + str(tree[0]) + "': "
msg += str(e).replace("<lambda>()", "", 1).strip()
raise HyMacroExpansionError(tree, msg)
try:
obj = m(compiler.module_name, *tree[1:], **opts)
except HyTypeError as e:
if e.expression is None:
e.expression = tree
raise
except Exception as e:
msg = "expanding `" + str(tree[0]) + "': " + repr(e)
raise HyMacroExpansionError(tree, msg)
tree = replace_hy_obj(obj, tree)
if once:
break
tree = wrap_value(tree)
return tree
def __init__(self, spy=False, output_fn=None, locals=None,
filename="<input>"):
self.spy = spy
if output_fn is None:
self.output_fn = repr
elif callable(output_fn):
self.output_fn = output_fn
else:
if "." in output_fn:
parts = [mangle(x) for x in output_fn.split(".")]
module, f = '.'.join(parts[:-1]), parts[-1]
self.output_fn = getattr(importlib.import_module(module), f)
else:
self.output_fn = __builtins__[mangle(output_fn)]
code.InteractiveConsole.__init__(self, locals=locals,
filename=filename)
# Pre-mangle symbols for repl recent results: *1, *2, *3
self._repl_results_symbols = [mangle("*{}".format(i + 1)) for i in range(3)]
self.locals.update({sym: None for sym in self._repl_results_symbols})
def runsource(self, source, filename='<input>', symbol='single'):
global SIMPLE_TRACEBACKS
try:
try:
do = import_buffer_to_hst(source)
except PrematureEndOfInput:
return True
except LexException as e:
if e.source is None:
e.source = source
e.filename = filename
print(e, file=sys.stderr)
return False
try:
def ast_callback(main_ast, expr_ast):
if self.spy:
# Mush the two AST chunks into a single module for
# conversion into Python.
new_ast = ast.Module(main_ast.body +
[ast.Expr(expr_ast.body)])
print(astor.to_source(new_ast))
value = hy_eval(do, self.locals, "__console__", ast_callback)
except HyTypeError as e:
if e.source is None:
e.source = source
e.filename = filename
if SIMPLE_TRACEBACKS:
print(e, file=sys.stderr)
else:
self.showtraceback()
return False
except Exception:
self.showtraceback()
return False
if value is not None:
# Make the last non-None value available to
# the user as `*1`.
self.locals[mangle("*1")] = value
# Print the value.
try:
output = self.output_fn(value)
except Exception:
self.showtraceback()
return False
print(output)
return False
def macroexpand_1(tree, compiler):
"""Expand the toplevel macro from `tree` once, in the context of
`module_name`."""
if isinstance(tree, HyExpression):
if tree == []:
return tree
fn = tree[0]
if fn in ("quote", "quasiquote"):
return tree
ntree = HyExpression(tree[:])
ntree.replace(tree)
opts = {}
if isinstance(fn, HySymbol):
fn = mangle(str_type(fn))
m = _hy_macros[compiler.module_name].get(fn)
if m is None:
m = _hy_macros[None].get(fn)
if m is not None:
if m._hy_macro_pass_compiler:
opts['compiler'] = compiler
try:
m_copy = make_empty_fn_copy(m)
m_copy(compiler.module_name, *ntree[1:], **opts)
except TypeError as e:
msg = "expanding `" + str(tree[0]) + "': "
msg += str(e).replace("<lambda>()", "", 1).strip()
raise HyMacroExpansionError(tree, msg)
try:
obj = m(compiler.module_name, *ntree[1:], **opts)
except HyTypeError as e:
if e.expression is None:
e.expression = tree
raise
except Exception as e:
msg = "expanding `" + str(tree[0]) + "': " + repr(e)
raise HyMacroExpansionError(tree, msg)
replace_hy_obj(obj, tree)
return obj
return ntree
return tree
def error_handler(e, use_simple_traceback=False):
self.locals[mangle("*e")] = e
if use_simple_traceback:
print(e, file=sys.stderr)
else:
self.showtraceback()
def error_handler(e, use_simple_traceback=False):
self.locals[mangle("*e")] = e
if use_simple_traceback:
print(e, file=sys.stderr)
else:
self.showtraceback()
