Merge pull request #1803 from Kodiologist/fstring2py
Fix AST representation of format strings
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commit
2942419bc8
1
NEWS.rst
1
NEWS.rst
@ -20,6 +20,7 @@ Bug Fixes
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------------------------------
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* Statements in the second argument of `assert` are now executed.
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* Fixed the expression of a while loop that contains statements being compiled twice.
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* `hy2py` can now handle format strings.
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0.17.0
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==============================
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@ -1784,7 +1784,7 @@ class HyASTCompiler(object):
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item = item[2:].lstrip()
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# Look for a format specifier.
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format_spec = asty.Str(string, s = "")
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format_spec = None
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if item.startswith(':'):
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if allow_recursion:
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ret += self._format_string(string,
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@ -1793,6 +1793,8 @@ class HyASTCompiler(object):
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format_spec = ret.force_expr
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else:
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format_spec = asty.Str(string, s=item[1:])
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if PY36:
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format_spec = asty.JoinedStr(string, values=[format_spec])
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elif item:
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raise self._syntax_error(string,
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"f-string: trailing junk in field")
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@ -1818,7 +1820,9 @@ class HyASTCompiler(object):
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('!' + conversion if conversion else '') +
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':{}}'),
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attr = 'format', ctx = ast.Load()),
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args = [ret.force_expr, format_spec],
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args = [
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ret.force_expr,
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format_spec or asty.Str(string, s = "")],
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keywords = [], starargs = None, kwargs = None))
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return ret + (
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@ -49,6 +49,10 @@ Call me Ishmael. Some years ago—never mind how long precisely—having little
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(setv condexpr (if "" "x" "y"))
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(setv mylambda (fn [x] (+ x "z")))
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(setv fstring1 f"hello {(+ 1 1)} world")
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(setv p "xyzzy")
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(setv fstring2 f"a{p !r :9}")
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(setv augassign 103)
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(//= augassign 4)
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@ -79,6 +79,9 @@ def assert_stuff(m):
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assert type(m.mylambda) is type(lambda x: x + "z")
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assert m.mylambda("a") == "az"
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assert m.fstring1 == "hello 2 world"
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assert m.fstring2 == "a'xyzzy' "
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assert m.augassign == 25
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assert m.delstatement == ["a", "c", "d", "e"]
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