Aug 15, 2025 · Aug 7, 2025 · Aug 7, 2025 · Aug 7, 2025 · Aug 7, 2025 · Aug 11, 2025
diff --git a/mypyc/irbuild/specialize.py b/mypyc/irbuild/specialize.py
        for i in range(len(exprs)):
            # TODO: instead of checking isinstance StrExpr, check with some new is_literal fn.
            # This can include IntExpr, BytesExpr, Final string RefExpr, and more future cases.
            while isinstance(exprs[i], StrExpr) and isinstance(exprs[i+1], StrExpr):
            while isinstance(exprs[i], StrExpr) and isinstance(exprs[i +1], StrExpr):
                first = exprs[i]
                concatenated = first.value + exprs[i+1].value
                exprs = [*exprs[:i], StrExpr(concatenated, first.line), *exprs[i+2:]]
                format_ops = [*format_ops[:i], format_ops[i+1], *format_ops[i+2:]]
                concatenated = first.value + exprs[i +1].value
                exprs = [*exprs[:i], StrExpr(concatenated, first.line), *exprs[i + 2:]]
                format_ops = [*format_ops[:i], format_ops[i +1], *format_ops[i + 2:]]

        substitutions = convert_format_expr_to_str(builder, format_ops, exprs, expr.line)
        if substitutions is None:
Original file line number	Diff line number	Diff line change
Expand Up		@@ -713,11 +713,11 @@ def translate_fstring(builder: IRBuilder, expr: CallExpr, callee: RefExpr) -> Va
		for i in range(len(exprs)):
		# TODO: instead of checking isinstance StrExpr, check with some new is_literal fn.
		# This can include IntExpr, BytesExpr, Final string RefExpr, and more future cases.
		while isinstance(exprs[i], StrExpr) and isinstance(exprs[i+1], StrExpr):
		while isinstance(exprs[i], StrExpr) and isinstance(exprs[i +1], StrExpr):
		first = exprs[i]
		concatenated = first.value + exprs[i+1].value
		exprs = [exprs[:i], StrExpr(concatenated, first.line), exprs[i+2:]]
		format_ops = [format_ops[:i], format_ops[i+1], format_ops[i+2:]]
		concatenated = first.value + exprs[i +1].value
		exprs = [exprs[:i], StrExpr(concatenated, first.line), exprs[i + 2:]]
		format_ops = [format_ops[:i], format_ops[i +1], format_ops[i + 2:]]

		substitutions = convert_format_expr_to_str(builder, format_ops, exprs, expr.line)
		if substitutions is None:
Expand Down