Author: Romain Guillebert <[email protected]>
Branch: py3k
Changeset: r51406:5dd563b2360f
Date: 2012-01-17 16:21 +0100
http://bitbucket.org/pypy/pypy/changeset/5dd563b2360f/
Log: (antocuni, romain) started to parse the new tuple unpacking (only
the case with no parenthesis is implemented so far)
diff --git a/pypy/interpreter/astcompiler/astbuilder.py
b/pypy/interpreter/astcompiler/astbuilder.py
--- a/pypy/interpreter/astcompiler/astbuilder.py
+++ b/pypy/interpreter/astcompiler/astbuilder.py
@@ -680,7 +680,7 @@
self.set_context(target_expr, ast.Store)
targets.append(target_expr)
value_child = stmt.children[-1]
- if value_child.type == syms.testlist:
+ if value_child.type == syms.testlist or value_child.type ==
syms.testlist_star_expr:
value_expr = self.handle_testlist(value_child)
else:
value_expr = self.handle_expr(value_child)
diff --git a/pypy/interpreter/pyparser/data/Grammar3.2
b/pypy/interpreter/pyparser/data/Grammar3.2
--- a/pypy/interpreter/pyparser/data/Grammar3.2
+++ b/pypy/interpreter/pyparser/data/Grammar3.2
@@ -37,8 +37,9 @@
simple_stmt: small_stmt (';' small_stmt)* [';'] NEWLINE
small_stmt: (expr_stmt | del_stmt | pass_stmt | flow_stmt |
import_stmt | global_stmt | nonlocal_stmt | assert_stmt)
-expr_stmt: testlist (augassign (yield_expr|testlist) |
- ('=' (yield_expr|testlist))*)
+expr_stmt: testlist_star_expr (augassign (yield_expr|testlist) |
+ ('=' (yield_expr|testlist_star_expr))*)
+testlist_star_expr: (test|star_expr) (',' (test|star_expr))* [',']
augassign: ('+=' | '-=' | '*=' | '/=' | '%=' | '&=' | '|=' | '^=' |
'<<=' | '>>=' | '**=' | '//=')
# For normal assignments, additional restrictions enforced by the interpreter
@@ -93,6 +94,7 @@
not_test: 'not' not_test | comparison
comparison: expr (comp_op expr)*
comp_op: '<'|'>'|'=='|'>='|'<='|'<>'|'!='|'in'|'not' 'in'|'is'|'is' 'not'
+star_expr: '*' expr
expr: xor_expr ('|' xor_expr)*
xor_expr: and_expr ('^' and_expr)*
and_expr: shift_expr ('&' shift_expr)*
diff --git a/pypy/interpreter/pyparser/test/test_pyparse.py
b/pypy/interpreter/pyparser/test/test_pyparse.py
--- a/pypy/interpreter/pyparser/test/test_pyparse.py
+++ b/pypy/interpreter/pyparser/test/test_pyparse.py
@@ -157,4 +157,5 @@
py.test.raises(SyntaxError, self.parse, '0777')
def test_py3k_extended_unpacking(self):
+ self.parse('a, *rest, b = 1, 2, 3, 4, 5')
self.parse('(a, *rest, b) = 1, 2, 3, 4, 5')
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