mirror of
https://github.com/syssec-utd/pylingual.git
synced 2026-05-10 18:39:03 -07:00
Merge pull request #54 from tsweet64/xinlong-branch
Try-Exception 3.6/3.7/3.8
This commit is contained in:
@@ -14,6 +14,7 @@ from ..utils import (
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ending_instructions,
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exact_instructions,
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no_back_edges,
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without_top_level_instructions,
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has_incoming_edge_of_categories,
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revert_on_fail,
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starting_instructions,
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@@ -37,22 +38,22 @@ class Except3_11(ControlFlowTemplate):
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return x
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class Except3_10(ControlFlowTemplate):
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class Except3_9(ControlFlowTemplate):
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@classmethod
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@override
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def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
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if [x.opname for x in node.get_instructions()] == ["RERAISE"]:
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return node
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if x := ExceptExc3_10.try_match(cfg, node):
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if x := ExceptExc3_9.try_match(cfg, node):
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return x
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if x := BareExcept3_10.try_match(cfg, node):
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if x := BareExcept3_9.try_match(cfg, node):
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return x
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if isinstance(node, Except3_10):
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if isinstance(node, Except3_9):
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return node
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@register_template(0, 0, *versions_from(3, 11))
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class Try3_12(ControlFlowTemplate):
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class Try3_11(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("tail.", None, "except_body"),
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@@ -84,7 +85,7 @@ class Try3_12(ControlFlowTemplate):
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@register_template(0, 0, *versions_from(3, 11))
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class TryElse3_12(ControlFlowTemplate):
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class TryElse3_11(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("try_else.", None, "except_body"),
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@@ -119,223 +120,6 @@ class TryElse3_12(ControlFlowTemplate):
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"""
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@register_template(0, 1, (3, 9), (3, 10))
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class Try3_10(ControlFlowTemplate):
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template = T(
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try_header=~N("try_body"),
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try_body=N("try_footer.", None, "except_body"),
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try_footer=~N("tail."),
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except_body=~N("tail.").of_subtemplate(Except3_10),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"try_header",
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"try_body",
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"except_body",
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"try_footer",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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{try_header}
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try:
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{try_body}
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{except_body}
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"""
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@register_template(0, 0, (3, 9), (3, 10))
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class TryElse3_10(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("try_footer.", None, "except_body"),
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try_footer=N("else_body").with_in_deg(1),
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except_body=N("tail.").with_in_deg(1).of_subtemplate(Except3_10),
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else_body=~N("tail.").with_in_deg(1),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"try_header",
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"try_body",
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"try_footer",
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"except_body",
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"else_body",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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{try_header}
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try:
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{try_body}
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{except_body}
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else:
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{else_body}
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"""
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class ExcBody3_10(ControlFlowTemplate):
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@classmethod
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@override
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def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
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if x := NamedExc3_10.try_match(cfg, node):
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return x
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return node
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class NamedExc3_10(ExcBody3_10):
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template = T(
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header=N("body", None).with_cond(with_instructions("POP_TOP", "STORE_FAST")),
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body=N("normal_cleanup", None, "exception_cleanup"),
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normal_cleanup=N("tail.").with_cond(with_instructions("STORE_FAST", "DELETE_FAST")),
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exception_cleanup=N.tail().with_cond(with_instructions("STORE_FAST", "DELETE_FAST")),
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tail=N.tail(),
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)
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try_match = make_try_match({EdgeKind.Fall: "tail"}, "exception_cleanup", "header", "body", "normal_cleanup")
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to_indented_source = defer_source_to("body")
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class BareExcept3_10(Except3_10):
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template = T(
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except_body=~N("tail.", None).with_cond(with_instructions("POP_EXCEPT")).with_cond(has_incoming_edge_of_categories("exception", "false_jump")),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"except_body",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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except:
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{except_body}
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"""
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class ExceptExc3_10(Except3_10):
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template = T(
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except_header=N("body", "falsejump"),
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body=~N("tail.").of_subtemplate(ExcBody3_10),
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falsejump=~N("tail.").of_subtemplate(Except3_10),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"body",
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"except_header",
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"falsejump",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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{except_header}
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{body}
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{falsejump}
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"""
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@register_template(2, 50, (3, 9), (3, 10))
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class TryFinally3_10(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("finally_body", None, "fail_body"),
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finally_body=~N("tail.").with_in_deg(1).with_cond(no_back_edges),
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fail_body=N("tail.").with_cond(ending_instructions("POP_TOP", "RERAISE")),
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tail=N.tail(),
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)
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template2 = T(
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try_except=N("finally_tail", None, "fail_body").of_type(TryElse3_10, Try3_10),
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finally_tail=N("finally_body", None, "fail_body"),
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finally_body=~N("tail.").with_in_deg(1).with_cond(no_back_edges),
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fail_body=N("tail.").with_cond(ending_instructions("POP_TOP", "RERAISE")),
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tail=N.tail(),
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)
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@staticmethod
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def find_finally_cutoff(mapping):
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f = mapping["finally_body"]
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g = mapping["fail_body"]
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if any(x.starts_line is not None for x in g.get_instructions()):
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return None
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if not isinstance(f, BlockTemplate):
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f = BlockTemplate([f])
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if not isinstance(g, BlockTemplate):
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g = BlockTemplate([g])
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if isinstance(g.members[-1], InstTemplate) and g.members[-1].inst.opname == "RERAISE":
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g.members.pop()
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x = None
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for x, y in zip(f.members, g.members):
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if all(type(a) in [IfThen, IfElse] for a in (x, y)):
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continue
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if type(x) is not type(y):
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return None
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return x and f.members.index(x)
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cutoff: int
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@classmethod
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@override
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def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
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mapping = cls.template.try_match(cfg, node)
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if mapping is None:
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mapping = cls.template2.try_match(cfg, node)
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if mapping is None:
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return None
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mapping["try_header"] = mapping.pop("try_except")
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cutoff = cls.find_finally_cutoff(mapping)
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if cutoff is None:
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if cfg.run == 2:
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cutoff = 9999
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else:
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return None
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template = condense_mapping(cls, cfg, mapping, "try_header", "try_body", "finally_body", "fail_body")
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template.cutoff = cutoff
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return template
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def to_indented_source(self, source: SourceContext) -> list[SourceLine]:
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header = source[self.try_header]
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body = source[self.try_body, 1]
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if isinstance(self.finally_body, BlockTemplate):
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i = self.cutoff + 1
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in_finally = source[BlockTemplate(self.finally_body.members[:i]), 1] if i > 0 else []
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after = source[BlockTemplate(self.finally_body.members[i:])] if i < len(self.finally_body.members) else []
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else:
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in_finally = source[self.finally_body, 1]
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after = []
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return list(chain(header, self.line("try:"), body, self.line("finally:"), in_finally, after))
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class BareExcept3_11(Except3_11):
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template = T(
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except_body=N("except_footer", None, "reraise"),
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@@ -444,7 +228,7 @@ class ExceptExc3_11(Except3_11):
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@register_template(0, 50)
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@register_template(2, 50)
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class TryFinally3_12(ControlFlowTemplate):
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class TryFinally3_11(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("finally_body", None, "fail_body"),
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@@ -454,7 +238,7 @@ class TryFinally3_12(ControlFlowTemplate):
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tail=N.tail(),
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)
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template2 = T(
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try_except=N("finally_body", None, "fail_body").of_type(Try3_12, TryElse3_12),
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try_except=N("finally_body", None, "fail_body").of_type(Try3_11, TryElse3_11),
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finally_body=~N("tail.").with_in_deg(1).with_cond(no_back_edges),
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fail_body=N(E.exc("reraise")),
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reraise=reraise,
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@@ -519,3 +303,375 @@ class TryFinally3_12(ControlFlowTemplate):
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after = []
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return list(chain(header, self.line("try:"), body, self.line("finally:"), in_finally, after))
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@register_template(0, 1, (3, 9), (3, 10))
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class Try3_9(ControlFlowTemplate):
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template = T(
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try_header=~N("try_body"),
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try_body=N("try_footer.", None, "except_body"),
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try_footer=~N("tail."),
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except_body=~N("tail.").of_subtemplate(Except3_9),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"try_header",
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"try_body",
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"except_body",
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"try_footer",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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{try_header}
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try:
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{try_body}
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{except_body}
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"""
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@register_template(0, 0, (3, 9), (3, 10))
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class TryElse3_9(ControlFlowTemplate):
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template = T(
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try_header=N("try_body"),
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try_body=N("try_footer.", None, "except_body"),
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try_footer=N("else_body").with_in_deg(1),
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except_body=N("tail.").with_in_deg(1).of_subtemplate(Except3_9),
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else_body=~N("tail.").with_in_deg(1),
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tail=N.tail(),
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)
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try_match = revert_on_fail(
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make_try_match(
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{
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EdgeKind.Fall: "tail",
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},
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"try_header",
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"try_body",
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"try_footer",
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"except_body",
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"else_body",
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)
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)
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@to_indented_source
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def to_indented_source():
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"""
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{try_header}
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try:
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{try_body}
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{except_body}
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else:
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{else_body}
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"""
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class ExcBody3_9(ControlFlowTemplate):
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@classmethod
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@override
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def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
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if x := NamedExc3_9.try_match(cfg, node):
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return x
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return node
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class NamedExc3_9(ExcBody3_9):
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template = T(
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header=N("body", None).with_cond(with_instructions("POP_TOP", "STORE_FAST")),
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body=N("normal_cleanup", None, "exception_cleanup"),
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normal_cleanup=N("tail.").with_cond(with_instructions("STORE_FAST", "DELETE_FAST")),
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exception_cleanup=N.tail().with_cond(with_instructions("STORE_FAST", "DELETE_FAST")),
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tail=N.tail(),
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)
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try_match = make_try_match({EdgeKind.Fall: "tail"}, "exception_cleanup", "header", "body", "normal_cleanup")
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to_indented_source = defer_source_to("body")
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|
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class BareExcept3_9(Except3_9):
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template = T(
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except_body=~N("tail.", None).with_cond(with_instructions("POP_EXCEPT")).with_cond(has_incoming_edge_of_categories("exception", "false_jump")),
|
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tail=N.tail(),
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)
|
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|
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try_match = revert_on_fail(
|
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make_try_match(
|
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{
|
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EdgeKind.Fall: "tail",
|
||||
},
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"except_body",
|
||||
)
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
except:
|
||||
{except_body}
|
||||
"""
|
||||
|
||||
|
||||
class ExceptExc3_9(Except3_9):
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||||
template = T(
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||||
except_header=N("body", "falsejump"),
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||||
body=~N("tail.").of_subtemplate(ExcBody3_9),
|
||||
falsejump=~N("tail.").of_subtemplate(Except3_9),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
try_match = revert_on_fail(
|
||||
make_try_match(
|
||||
{
|
||||
EdgeKind.Fall: "tail",
|
||||
},
|
||||
"body",
|
||||
"except_header",
|
||||
"falsejump",
|
||||
)
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
{except_header}
|
||||
{body}
|
||||
{falsejump}
|
||||
"""
|
||||
|
||||
|
||||
@register_template(2, 50, (3, 9), (3, 10))
|
||||
class TryFinally3_9(ControlFlowTemplate):
|
||||
template = T(
|
||||
try_header=N("try_body"),
|
||||
try_body=N("finally_body", None, "fail_body"),
|
||||
finally_body=~N("tail.").with_in_deg(1).with_cond(no_back_edges),
|
||||
fail_body=N("tail.").with_cond(ending_instructions("POP_TOP", "RERAISE")),
|
||||
tail=N.tail(),
|
||||
)
|
||||
template2 = T(
|
||||
try_except=N("finally_tail", None, "fail_body").of_type(TryElse3_9, Try3_9),
|
||||
finally_tail=N("finally_body", None, "fail_body"),
|
||||
finally_body=~N("tail.").with_in_deg(1).with_cond(no_back_edges),
|
||||
fail_body=N("tail.").with_cond(ending_instructions("POP_TOP", "RERAISE")),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
@staticmethod
|
||||
def find_finally_cutoff(mapping):
|
||||
f = mapping["finally_body"]
|
||||
g = mapping["fail_body"]
|
||||
if any(x.starts_line is not None for x in g.get_instructions()):
|
||||
return None
|
||||
if not isinstance(f, BlockTemplate):
|
||||
f = BlockTemplate([f])
|
||||
if not isinstance(g, BlockTemplate):
|
||||
g = BlockTemplate([g])
|
||||
if isinstance(g.members[-1], InstTemplate) and g.members[-1].inst.opname == "RERAISE":
|
||||
g.members.pop()
|
||||
x = None
|
||||
for x, y in zip(f.members, g.members):
|
||||
if all(type(a) in [IfThen, IfElse] for a in (x, y)):
|
||||
continue
|
||||
if type(x) is not type(y):
|
||||
return None
|
||||
return x and f.members.index(x)
|
||||
|
||||
cutoff: int
|
||||
|
||||
@classmethod
|
||||
@override
|
||||
def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
|
||||
mapping = cls.template.try_match(cfg, node)
|
||||
if mapping is None:
|
||||
mapping = cls.template2.try_match(cfg, node)
|
||||
if mapping is None:
|
||||
return None
|
||||
mapping["try_header"] = mapping.pop("try_except")
|
||||
|
||||
cutoff = cls.find_finally_cutoff(mapping)
|
||||
if cutoff is None:
|
||||
if cfg.run == 2:
|
||||
cutoff = 9999
|
||||
else:
|
||||
return None
|
||||
|
||||
template = condense_mapping(cls, cfg, mapping, "try_header", "try_body", "finally_body", "fail_body")
|
||||
template.cutoff = cutoff
|
||||
return template
|
||||
|
||||
def to_indented_source(self, source: SourceContext) -> list[SourceLine]:
|
||||
header = source[self.try_header]
|
||||
body = source[self.try_body, 1]
|
||||
|
||||
if isinstance(self.finally_body, BlockTemplate):
|
||||
i = self.cutoff + 1
|
||||
in_finally = source[BlockTemplate(self.finally_body.members[:i]), 1] if i > 0 else []
|
||||
after = source[BlockTemplate(self.finally_body.members[i:])] if i < len(self.finally_body.members) else []
|
||||
else:
|
||||
in_finally = source[self.finally_body, 1]
|
||||
after = []
|
||||
|
||||
return list(chain(header, self.line("try:"), body, self.line("finally:"), in_finally, after))
|
||||
|
||||
|
||||
class Except3_6(ControlFlowTemplate):
|
||||
@classmethod
|
||||
@override
|
||||
def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
|
||||
if [x.opname for x in node.get_instructions()] == ["END_FINALLY"]:
|
||||
return node
|
||||
if x := ExceptExc3_6.try_match(cfg, node):
|
||||
return x
|
||||
if x := BareExcept3_6.try_match(cfg, node):
|
||||
return x
|
||||
return None
|
||||
|
||||
|
||||
@register_template(0, 0, (3, 6), (3, 7), (3, 8))
|
||||
class Try3_6(ControlFlowTemplate):
|
||||
template = T(
|
||||
try_header=N("try_body").with_cond(without_top_level_instructions("SETUP_WITH")),
|
||||
try_body=N("try_footer", None, "except_body"),
|
||||
try_footer=N("tail."),
|
||||
except_body=N("tail.").with_in_deg(1).of_subtemplate(Except3_6),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
try_match = revert_on_fail(
|
||||
make_try_match(
|
||||
{
|
||||
EdgeKind.Fall: "tail",
|
||||
},
|
||||
"try_header",
|
||||
"try_body",
|
||||
"try_footer",
|
||||
"except_body",
|
||||
)
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
{try_header}
|
||||
try:
|
||||
{try_body}
|
||||
{except_body}
|
||||
"""
|
||||
|
||||
|
||||
class ExcBody3_6(ControlFlowTemplate):
|
||||
@classmethod
|
||||
@override
|
||||
def try_match(cls, cfg, node) -> ControlFlowTemplate | None:
|
||||
if x := NamedExc3_6.try_match(cfg, node):
|
||||
return x
|
||||
return node
|
||||
|
||||
|
||||
class NamedExc3_6(ExcBody3_6):
|
||||
template = T(
|
||||
header=N("body", None).with_cond(starting_instructions("POP_TOP", "STORE_FAST")),
|
||||
body=N("normal_cleanup", None, "exception_cleanup"),
|
||||
normal_cleanup=N("exception_cleanup."),
|
||||
exception_cleanup=N.tail().with_cond(with_instructions("LOAD_CONST", "STORE_FAST")),
|
||||
)
|
||||
|
||||
try_match = make_try_match({EdgeKind.Fall: "tail"}, "exception_cleanup", "header", "body", "normal_cleanup")
|
||||
|
||||
to_indented_source = defer_source_to("body")
|
||||
|
||||
|
||||
class ExceptExc3_6(Except3_6):
|
||||
template = T(
|
||||
except_header=N("except_body", "no_match").with_cond(
|
||||
ending_instructions("COMPARE_OP", "POP_JUMP_IF_FALSE"),
|
||||
ending_instructions("COMPARE_OP", "POP_JUMP_FORWARD_IF_FALSE")
|
||||
),
|
||||
except_body=N("tail.", None).of_subtemplate(ExcBody3_6).with_in_deg(1),
|
||||
no_match=N("tail?", None).of_subtemplate(Except3_6),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
try_match = revert_on_fail(
|
||||
make_try_match(
|
||||
{
|
||||
EdgeKind.Fall: "tail",
|
||||
},
|
||||
"except_header",
|
||||
"except_body",
|
||||
"no_match",
|
||||
)
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
{except_header}
|
||||
{except_body}
|
||||
{no_match}
|
||||
"""
|
||||
|
||||
|
||||
@register_template(0, 0, (3, 6), (3, 7), (3, 8))
|
||||
class TryElse3_6(ControlFlowTemplate):
|
||||
template = T(
|
||||
try_header=N("try_body"),
|
||||
try_body=N("try_footer.", None, "except_body"),
|
||||
try_footer=N("else_body").with_in_deg(1),
|
||||
except_body=N("tail").with_in_deg(1).of_subtemplate(Except3_6),
|
||||
else_body=~N("tail").with_in_deg(1),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
try_match = revert_on_fail(
|
||||
make_try_match(
|
||||
{
|
||||
EdgeKind.Fall: "tail",
|
||||
},
|
||||
"try_header",
|
||||
"try_body",
|
||||
"try_footer",
|
||||
"except_body",
|
||||
"else_body",
|
||||
)
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
{try_header}
|
||||
try:
|
||||
{try_body}
|
||||
{except_body}
|
||||
else:
|
||||
{else_body}
|
||||
"""
|
||||
|
||||
|
||||
class BareExcept3_6(Except3_6):
|
||||
template = T(
|
||||
except_body=N("tail."),
|
||||
tail=N.tail(),
|
||||
)
|
||||
|
||||
try_match = make_try_match(
|
||||
{
|
||||
EdgeKind.Fall: "tail",
|
||||
},
|
||||
"except_body",
|
||||
)
|
||||
|
||||
@to_indented_source
|
||||
def to_indented_source():
|
||||
"""
|
||||
except:
|
||||
{except_body}
|
||||
"""
|
||||
@@ -1,5 +1,5 @@
|
||||
from ..cft import ControlFlowTemplate, EdgeKind, register_template
|
||||
from ..utils import T, N, exact_instructions, starting_instructions, to_indented_source, make_try_match, versions_from
|
||||
from ..utils import T, N, exact_instructions, starting_instructions, without_instructions, to_indented_source, make_try_match, versions_from
|
||||
|
||||
|
||||
class WithCleanup3_11(ControlFlowTemplate):
|
||||
@@ -82,7 +82,7 @@ class With3_9(ControlFlowTemplate):
|
||||
@register_template(0, 10, (3, 6), (3, 7), (3, 8))
|
||||
class With3_6(ControlFlowTemplate):
|
||||
template = T(
|
||||
setup_with=~N("with_body", None),
|
||||
setup_with=~N("with_body", None).with_cond(without_instructions("SETUP_FINALLY")),
|
||||
with_body=N("buffer_block.", None, "normal_cleanup").with_in_deg(1),
|
||||
buffer_block=~N("normal_cleanup.", None).with_in_deg(1),
|
||||
normal_cleanup=~N.tail(),
|
||||
|
||||
Reference in New Issue
Block a user