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compiler/lower_time: make 'now' an int64

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This commit is contained in:
Sebastien Bourdeauducq 2014-08-18 23:04:28 +08:00
parent 331dbc971b
commit dcc140c5a9
1 changed files with 13 additions and 3 deletions
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16
artiq/compiler/lower_time.py
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@ -1,5 +1,13 @@
import ast
from artiq.compiler.tools import value_to_ast
from artiq.language.core import int64
def _insert_int64(node):
return ast.copy_location(
ast.Call(func=ast.Name("int64", ast.Load()),
args=[node],
keywords=[], starargs=[], kwargs=[]), node)
class _TimeLowerer(ast.NodeTransformer):
def __init__(self, ref_period):
@ -23,11 +31,13 @@ class _TimeLowerer(ast.NodeTransformer):
funcname = node.value.func.id
if funcname == "delay":
return ast.copy_location(
ast.AugAssign(target=ast.Name("now", ast.Store()), op=ast.Add(), value=node.value.args[0]),
ast.AugAssign(target=ast.Name("now", ast.Store()), op=ast.Add(),
value=_insert_int64(node.value.args[0])),
node)
elif funcname == "at":
return ast.copy_location(
ast.Assign(targets=[ast.Name("now", ast.Store())], value=node.value.args[0]),
ast.Assign(targets=[ast.Name("now", ast.Store())],
value=_insert_int64(node.value.args[0])),
node)
else:
return node
@ -37,5 +47,5 @@ class _TimeLowerer(ast.NodeTransformer):
def lower_time(funcdef, initial_time):
_TimeLowerer().visit(funcdef)
funcdef.body.insert(0, ast.copy_location(
ast.Assign(targets=[ast.Name("now", ast.Store())], value=value_to_ast(initial_time)),
ast.Assign(targets=[ast.Name("now", ast.Store())], value=value_to_ast(int64(initial_time))),
funcdef))