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
    RefExpr,
    StrExpr,
    TupleExpr,
    Var,
 )
 from mypy.types import AnyType, TypeOfAny
 from mypyc.ir.ops import (
                if isinstance(expr, StrExpr):
                    return expr.value
                elif isinstance(expr, RefExpr) and isinstance(expr.node, Var) and expr.node.final_value is not None:
                    return str(expr.final_value)
                    return str(expr.node.final_value)
                return None

            while len(exprs) >= i + 2 and is_literal_str(exprs[i]) and is_literal_str(exprs[i + 1]):
                first = exprs[i]
                concatenated = get_literal_str(first) + get_literal_str(exprs[i + 1])
                concatenated = get_literal_str(first) + get_literal_str(exprs[i + 1])  # type: ignore [operator]
                exprs = [*exprs[:i], StrExpr(concatenated, first.line), *exprs[i + 2 :]]
                format_ops = [*format_ops[:i], format_ops[i + 1], *format_ops[i + 2 :]]
Original file line number	Diff line number	Diff line change
Expand Up		@@ -31,6 +31,7 @@
		RefExpr,
		StrExpr,
		TupleExpr,
		Var,
		)
		from mypy.types import AnyType, TypeOfAny
		from mypyc.ir.ops import (
Expand DownExpand Up		@@ -719,12 +720,12 @@ def get_literal_str(expr: Expression) -> str \| None:
		if isinstance(expr, StrExpr):
		return expr.value
		elif isinstance(expr, RefExpr) and isinstance(expr.node, Var) and expr.node.final_value is not None:
		return str(expr.final_value)
		return str(expr.node.final_value)
		return None

		while len(exprs) >= i + 2 and is_literal_str(exprs[i]) and is_literal_str(exprs[i + 1]):
		first = exprs[i]
		concatenated = get_literal_str(first) + get_literal_str(exprs[i + 1])
		concatenated = get_literal_str(first) + get_literal_str(exprs[i + 1]) # type: ignore [operator]
		exprs = [exprs[:i], StrExpr(concatenated, first.line), exprs[i + 2 :]]
		format_ops = [format_ops[:i], format_ops[i + 1], format_ops[i + 2 :]]

Expand Down