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patches from Mark Hammond

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Attached is a set of diffs for the .py compiler that adds support
for the new extended call syntax.

compiler/ast.py:
CallFunc node gets 2 new children to support extended call syntax -
"star_args" (for "*args") and "dstar_args" (for "**args")

compiler/pyassem.py
It appear that self.lnotab is supposed to be responsible for
tracking line numbers, but self.firstlineno was still hanging
around.  Removed self.firstlineno completely.  NOTE - I didnt
actually test that the generated code has the correct line numbers!!

Stack depth tracking appeared a little broken - the checks never
made it beyond the "self.patterns" check - thus, the custom methods
were never called!  Fixed this.

(XXX Jeremy notes: I think this code is still broken because it
doesn't track stack effects across block bounaries.)

Added support for the new extended call syntax opcodes for depth
calculations.

compiler/pycodegen.py

Added support for the new extended call syntax opcodes.

compiler/transformer.py

Added support for the new extended call syntax.
This commit is contained in:
Jeremy Hylton 2000-05-02 22:32:59 +00:00
parent 0a4f1ff64e
commit be317e615e
8 changed files with 116 additions and 28 deletions
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17
Lib/compiler/pycodegen.py
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@ -9,6 +9,14 @@ from compiler import ast, parse, walk
from compiler import pyassem, misc
from compiler.pyassem import CO_VARARGS, CO_VARKEYWORDS, TupleArg
callfunc_opcode_info = {
# (Have *args, Have **args) : opcode
(0,0) : "CALL_FUNCTION",
(1,0) : "CALL_FUNCTION_VAR",
(0,1) : "CALL_FUNCTION_KW",
(1,1) : "CALL_FUNCTION_VAR_KW",
}
def compile(filename):
f = open(filename)
buf = f.read()
@ -478,7 +486,14 @@ class CodeGenerator:
kw = kw + 1
else:
pos = pos + 1
self.emit('CALL_FUNCTION', kw << 8 | pos)
if node.star_args is not None:
self.visit(node.star_args)
if node.dstar_args is not None:
self.visit(node.dstar_args)
have_star = node.star_args is not None
have_dstar = node.dstar_args is not None
opcode = callfunc_opcode_info[have_star, have_dstar]
self.emit(opcode, kw << 8 | pos)
def visitPrint(self, node):
self.emit('SET_LINENO', node.lineno)