Files
OpenHands/openhands/linter/languages/treesitter.py
2024-10-01 02:40:23 +08:00

75 lines
2.1 KiB
Python

import warnings
from grep_ast import TreeContext, filename_to_lang
from grep_ast.parsers import PARSERS
from tree_sitter_languages import get_parser
from openhands.linter.base import BaseLinter, LintResult
# tree_sitter is throwing a FutureWarning
warnings.simplefilter('ignore', category=FutureWarning)
def tree_context(fname, code, line_nums):
context = TreeContext(
fname,
code,
color=False,
line_number=True,
child_context=False,
last_line=False,
margin=0,
mark_lois=True,
loi_pad=3,
# header_max=30,
show_top_of_file_parent_scope=False,
)
line_nums = set(line_nums)
context.add_lines_of_interest(line_nums)
context.add_context()
output = context.format()
return output
def traverse_tree(node):
"""Traverses the tree to find errors."""
errors = []
if node.type == 'ERROR' or node.is_missing:
line_no = node.start_point[0] + 1
col_no = node.start_point[1] + 1
error_type = 'Missing node' if node.is_missing else 'Syntax error'
errors.append((line_no, col_no, error_type))
for child in node.children:
errors += traverse_tree(child)
return errors
class TreesitterBasicLinter(BaseLinter):
@property
def supported_extensions(self) -> list[str]:
return list(PARSERS.keys())
def lint(self, file_path: str) -> list[LintResult]:
"""Use tree-sitter to look for syntax errors, display them with tree context."""
lang = filename_to_lang(file_path)
if not lang:
return []
parser = get_parser(lang)
with open(file_path, 'r') as f:
code = f.read()
tree = parser.parse(bytes(code, 'utf-8'))
errors = traverse_tree(tree.root_node)
if not errors:
return []
return [
LintResult(
file=file_path,
line=int(line),
column=int(col),
message=error_details,
)
for line, col, error_details in errors
]