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Merge pull request #275 from khinsen/spy-mode

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Add "spy mode" to REPL
This commit is contained in:
khinsen 2013-08-20 01:17:13 -07:00
commit f3c17bac33
1 changed files with 17 additions and 3 deletions
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20
hy/cmdline.py
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@ -67,8 +67,18 @@ class HyQuitter(object):
builtins.quit = HyQuitter('quit') builtins.quit = HyQuitter('quit')
builtins.exit = HyQuitter('exit') builtins.exit = HyQuitter('exit')
def print_python_code(_ast):
import astor.codegen
# astor cannot handle ast.Interactive, so disguise it as a module
_ast_for_print = ast.Module()
_ast_for_print.body = _ast.body
print(astor.codegen.to_source(_ast_for_print))
class HyREPL(code.InteractiveConsole): class HyREPL(code.InteractiveConsole):
def __init__(self, spy=False):
self.spy = spy
code.InteractiveConsole.__init__(self)
def runsource(self, source, filename='<input>', symbol='single'): def runsource(self, source, filename='<input>', symbol='single'):
try: try:
tokens = tokenize(source) tokens = tokenize(source)
@ -80,6 +90,8 @@ class HyREPL(code.InteractiveConsole):
try: try:
_ast = hy_compile(tokens, "__console__", root=ast.Interactive) _ast = hy_compile(tokens, "__console__", root=ast.Interactive)
if self.spy:
print_python_code(_ast)
code = ast_compile(_ast, filename, symbol) code = ast_compile(_ast, filename, symbol)
except Exception: except Exception:
self.showtraceback() self.showtraceback()
@ -161,13 +173,13 @@ def run_file(filename):
return 0 # right? return 0 # right?
def run_repl(hr=None): def run_repl(hr=None, spy=False):
sys.ps1 = "=> " sys.ps1 = "=> "
sys.ps2 = "... " sys.ps2 = "... "
with completion(): with completion():
if not hr: if not hr:
hr = HyREPL() hr = HyREPL(spy)
hr.interact("{appname} {version}".format( hr.interact("{appname} {version}".format(
appname=hy.__appname__, appname=hy.__appname__,
@ -202,6 +214,8 @@ def cmdline_handler(scriptname, argv):
parser.add_argument( parser.add_argument(
"-i", dest="icommand", "-i", dest="icommand",
help="program passed in as a string, then stay in REPL") help="program passed in as a string, then stay in REPL")
parser.add_argument("--spy", action="store_true",
help="print equivalent Python code before executing")
parser.add_argument("-v", action="version", version=VERSION) parser.add_argument("-v", action="version", version=VERSION)
@ -241,7 +255,7 @@ def cmdline_handler(scriptname, argv):
sys.exit(x.errno) sys.exit(x.errno)
# User did NOTHING! # User did NOTHING!
return run_repl() return run_repl(spy=options.spy)
# entry point for cmd line script "hy" # entry point for cmd line script "hy"