Speed up line-numbered syntax word wrap

benchmarks/benchmarks.py

@@ -94,6 +94,22 @@ def _print_with_width(self, width):
         self.console.print(self.syntax, width)
 
 
+class SyntaxLineNumbersWrappingSuite:
+    def setup(self):
+        self.console = Console(
+            file=StringIO(), color_system="truecolor", legacy_windows=False
+        )
+        self.syntax = Syntax(
+            code=snippets.PYTHON_SNIPPET * 120,
+            lexer="python",
+            word_wrap=True,
+            line_numbers=True,
+        )
+
+    def time_text_thin_terminal_heavy_wrapping(self):
+        self.console.print(self.syntax, width=30)
+
+
 class TableSuite:
     def time_table_no_wrapping(self):
         self._print_table(width=100)

rich/syntax.py

@@ -743,14 +743,41 @@ def _get_syntax(
             highlight_number_style,
         ) = self._get_number_styles(console)
 
+        if self.word_wrap and not self.line_numbers:
+            text = Text("\n").join(lines)
+            syntax_lines = console.render_lines(
+                text,
+                render_options.update(height=None, justify="left"),
+                style=background_style,
+                pad=not transparent_background,
+                new_lines=True,
+            )
+            for syntax_line in syntax_lines:
+                yield from syntax_line
+            return
+
         for line_no, line in enumerate(lines, self.start_line + line_offset):
             if self.word_wrap:
-                wrapped_lines = console.render_lines(
-                    line,
-                    render_options.update(height=None, justify="left"),
-                    style=background_style,
-                    pad=not transparent_background,
-                )
+                wrapped_lines = [
+                    _Segment.adjust_line_length(
+                        list(
+                            _Segment.apply_style(
+                                wrapped_line.render(console), background_style
+                            )
+                        ),
+                        render_options.max_width,
+                        style=background_style,
+                        pad=not transparent_background,
+                    )
+                    for wrapped_line in line.wrap(
+                        console,
+                        render_options.max_width,
+                        justify="left",
+                        overflow=render_options.overflow,
+                        tab_size=self.tab_size,
+                        no_wrap=render_options.no_wrap,
+                    )
+                ]
             else:
                 segments = list(line.render(console, end=""))
                 if options.no_wrap:

tests/test_syntax.py

@@ -435,6 +435,27 @@ def test_padding_plus_wrap() -> None:
     assert output == expected
 
 
+def test_word_wrap_without_line_numbers_with_line_range() -> None:
+    console = Console(width=14, file=io.StringIO(), legacy_windows=False, record=True)
+    syntax = Syntax(
+        "first line should not appear\n"
+        "second line wraps around here\n"
+        "third line stays\n"
+        "fourth line should not appear",
+        lexer="text",
+        word_wrap=True,
+        line_numbers=False,
+        line_range=(2, 3),
+    )
+
+    console.print(syntax)
+
+    assert (
+        console.export_text()
+        == "second line   \nwraps around  \nhere          \nthird line    \nstays         \n"
+    )
+
+
 if __name__ == "__main__":
     syntax = Panel.fit(
         Syntax(