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Copy pathparser_loader.py
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314 lines (253 loc) · 11.6 KB
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import importlib
import os
import subprocess
import sys
from collections.abc import Callable
from copy import deepcopy
from typing import Any
from loguru import logger
from tree_sitter import Language, Parser, Query
from .language_config import LANGUAGE_CONFIGS
# Define a type for the language library loaders
LanguageLoader = Callable[[], object] | None
def _try_load_from_submodule(lang_name: str) -> LanguageLoader:
"""Try to load language from git submodule Python bindings."""
submodule_path = os.path.join("grammars", f"tree-sitter-{lang_name}")
python_bindings_path = os.path.join(submodule_path, "bindings", "python")
if not os.path.exists(python_bindings_path):
return None
try:
# Add the Python bindings to path
if python_bindings_path not in sys.path:
sys.path.insert(0, python_bindings_path)
try:
# Check if we need to build the binding
module_name = f"tree_sitter_{lang_name.replace('-', '_')}"
# Try to build and install the Python binding
setup_py = os.path.join(submodule_path, "setup.py")
if os.path.exists(setup_py):
logger.debug(f"Building Python bindings for {lang_name}...")
result = subprocess.run(
[sys.executable, "setup.py", "build_ext", "--inplace"],
cwd=submodule_path,
capture_output=True,
text=True,
)
if result.returncode != 0:
logger.debug(
f"Failed to build {lang_name} bindings: stdout={result.stdout}, stderr={result.stderr}"
)
return None
logger.debug(f"Successfully built {lang_name} bindings")
# Now try to import the module
logger.debug(f"Attempting to import module: {module_name}")
module = importlib.import_module(module_name)
# Try different possible language attribute names
language_attrs = [
"language",
f"language_{lang_name}",
f"language_{lang_name.replace('-', '_')}",
]
for attr_name in language_attrs:
if hasattr(module, attr_name):
logger.debug(
f"Successfully loaded {lang_name} from submodule bindings using {attr_name}"
)
return getattr(module, attr_name) # type: ignore[no-any-return]
logger.debug(
f"Module {module_name} imported but has no language attribute. Available: {dir(module)}"
)
finally:
# Clean up path
if python_bindings_path in sys.path:
sys.path.remove(python_bindings_path)
except Exception as e:
logger.debug(f"Failed to load {lang_name} from submodule bindings: {e}")
return None
# Import available Tree-sitter languages and correctly type them as Optional
def _import_language_loaders() -> dict[str, LanguageLoader]:
"""Import language loaders with proper error handling and typing."""
loaders: dict[str, LanguageLoader] = {}
try:
from tree_sitter_python import language as python_language_so
loaders["python"] = python_language_so
except ImportError:
loaders["python"] = _try_load_from_submodule("python")
try:
from tree_sitter_javascript import language as javascript_language_so
loaders["javascript"] = javascript_language_so
except ImportError:
loaders["javascript"] = _try_load_from_submodule("javascript")
try:
from tree_sitter_typescript import language_typescript as typescript_language_so
loaders["typescript"] = typescript_language_so
except ImportError:
loaders["typescript"] = _try_load_from_submodule("typescript")
try:
from tree_sitter_rust import language as rust_language_so
loaders["rust"] = rust_language_so
except ImportError:
loaders["rust"] = _try_load_from_submodule("rust")
try:
from tree_sitter_go import language as go_language_so
loaders["go"] = go_language_so
except ImportError:
loaders["go"] = _try_load_from_submodule("go")
try:
from tree_sitter_scala import language as scala_language_so
loaders["scala"] = scala_language_so
except ImportError:
loaders["scala"] = _try_load_from_submodule("scala")
try:
from tree_sitter_java import language as java_language_so
loaders["java"] = java_language_so
except ImportError:
loaders["java"] = _try_load_from_submodule("java")
try:
from tree_sitter_cpp import language as cpp_language_so
loaders["cpp"] = cpp_language_so
except ImportError:
loaders["cpp"] = _try_load_from_submodule("cpp")
# Lua support
try:
from tree_sitter_lua import language as lua_language_so
loaders["lua"] = lua_language_so
except ImportError:
loaders["lua"] = _try_load_from_submodule("lua")
# Automatically try submodule loading for any language not already loaded
for lang_name in LANGUAGE_CONFIGS.keys():
if lang_name not in loaders or loaders[lang_name] is None:
loaders[lang_name] = _try_load_from_submodule(lang_name)
return loaders
_language_loaders = _import_language_loaders()
LANGUAGE_LIBRARIES: dict[str, LanguageLoader | None] = _language_loaders
def load_parsers() -> tuple[dict[str, Parser], dict[str, Any]]:
"""Loads all available Tree-sitter parsers and compiles their queries."""
parsers: dict[str, Parser] = {}
queries: dict[str, Any] = {}
available_languages = []
# Deepcopy to avoid modifying the original configs
configs = deepcopy(LANGUAGE_CONFIGS)
for lang_name, lang_config in configs.items():
if lang_lib := LANGUAGE_LIBRARIES.get(lang_name):
try:
language = Language(lang_lib())
parser = Parser(language)
parsers[lang_name] = parser
# Create Tree-sitter queries - use pre-formatted queries if available, otherwise generate from node types
function_patterns = (
lang_config.function_query
if lang_config.function_query
else " ".join(
[
f"({node_type}) @function"
for node_type in lang_config.function_node_types
]
)
)
class_patterns = (
lang_config.class_query
if lang_config.class_query
else " ".join(
[
f"({node_type}) @class"
for node_type in lang_config.class_node_types
]
)
)
call_patterns = (
lang_config.call_query
if lang_config.call_query
else " ".join(
[
f"({node_type}) @call"
for node_type in lang_config.call_node_types
]
)
)
# Create import query patterns
import_patterns = " ".join(
[
f"({node_type}) @import"
for node_type in lang_config.import_node_types
]
)
import_from_patterns = " ".join(
[
f"({node_type}) @import_from"
for node_type in lang_config.import_from_node_types
]
)
# Combine import patterns (remove duplicates)
all_import_patterns = []
if import_patterns.strip():
all_import_patterns.append(import_patterns)
if (
import_from_patterns.strip()
and import_from_patterns != import_patterns
):
all_import_patterns.append(import_from_patterns)
combined_import_patterns = " ".join(all_import_patterns)
# Create locals query for variable tracking
locals_query = None
if lang_name in ("javascript", "typescript"):
# Create language-specific locals patterns
if lang_name == "javascript":
locals_patterns = """
; Variable definitions
(variable_declarator name: (identifier) @local.definition)
(function_declaration name: (identifier) @local.definition)
(class_declaration name: (identifier) @local.definition)
; Variable references
(identifier) @local.reference
"""
else: # typescript
# TypeScript-specific patterns (comprehensive like JavaScript)
locals_patterns = """
; Variable definitions (TypeScript has multiple declaration types)
(variable_declarator name: (identifier) @local.definition)
(lexical_declaration (variable_declarator name: (identifier) @local.definition))
(variable_declaration (variable_declarator name: (identifier) @local.definition))
; Function definitions
(function_declaration name: (identifier) @local.definition)
; Class definitions (uses type_identifier for class names)
(class_declaration name: (type_identifier) @local.definition)
; Variable references
(identifier) @local.reference
"""
try:
locals_query = Query(language, locals_patterns)
except Exception as e:
logger.debug(
f"Failed to create locals query for {lang_name}: {e}"
)
locals_query = None
queries[lang_name] = {
"functions": (
Query(language, function_patterns)
if function_patterns
else None
),
"classes": (
Query(language, class_patterns) if class_patterns else None
),
"calls": Query(language, call_patterns) if call_patterns else None,
"imports": (
Query(language, combined_import_patterns)
if combined_import_patterns
else None
),
"locals": locals_query,
"config": lang_config,
"language": language,
}
available_languages.append(lang_name)
logger.success(f"Successfully loaded {lang_name} grammar.")
except Exception as e:
logger.warning(f"Failed to load {lang_name} grammar: {e}")
else:
logger.debug(f"Tree-sitter library for {lang_name} not available.")
if not available_languages:
raise RuntimeError("No Tree-sitter languages available.")
logger.info(f"Initialized parsers for: {', '.join(available_languages)}")
return parsers, queries