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""" |
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Define functions to create an abstract syntax tree (AST) graph model using the 'graphinate' library. |
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The 'ast_graph_model' function parses the AST of a specified class and creates nodes and edges for the graph model. |
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The nodes represent AST nodes with their type and label, while the edges represent relationships between AST nodes. |
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""" |
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import ast |
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import hashlib |
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import inspect |
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import operator |
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import pickle |
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import threading |
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import webbrowser |
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from _ast import AST |
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from collections.abc import Iterable |
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from tempfile import TemporaryDirectory |
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import graphinate |
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def _ast_nodes(parsed_asts: Iterable[AST]): |
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for item in parsed_asts: |
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if not isinstance(item, ast.Load): |
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yield item |
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yield from _ast_nodes(ast.iter_child_nodes(item)) |
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View Code Duplication |
def _ast_edge(parsed_ast: AST): |
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for child_ast in ast.iter_child_nodes(parsed_ast): |
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if not isinstance(child_ast, ast.Load): |
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edge = {'source': parsed_ast, 'target': child_ast} |
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edge_types = ( |
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field_name |
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for field_name, value |
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in ast.iter_fields(parsed_ast) |
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if child_ast == value |
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or (child_ast in value if isinstance(value, list) else False) |
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) |
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edge_type = next(edge_types, None) |
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if edge_type: |
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edge['type'] = edge_type |
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yield edge |
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yield from _ast_edge(child_ast) |
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View Code Duplication |
def ast_graph_model(): |
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""" |
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Create an abstract syntax tree (AST) graph model. |
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Returns: |
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GraphModel: A graph model representing the AST nodes and their relationships. |
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""" |
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code_object = graphinate.builders.D3Builder |
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graph_model = graphinate.model(name=f'AST Graph - {code_object.__qualname__}',) |
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root_ast_node = ast.parse(inspect.getsource(graphinate.builders.D3Builder)) |
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def node_type(ast_node): |
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return ast_node.__class__.__name__ |
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def node_label(ast_node) -> str: |
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label = ast_node.__class__.__name__ |
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for field_name in ('name', 'id'): |
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if field_name in ast_node._fields: |
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value = operator.attrgetter(field_name)(ast_node) |
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label = f"{label}\n{field_name}: {value}" |
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return label |
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def key(value): |
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# noinspection InsecureHash |
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return hashlib.shake_128(pickle.dumps(value)).hexdigest(20) |
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def endpoint(value, endpoint_name): |
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return key(value[endpoint_name]) |
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def source(value): |
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return endpoint(value, 'source') |
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def target(value): |
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return endpoint(value, 'target') |
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@graph_model.node(type_=node_type, |
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key=key, |
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label=node_label, |
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unique=True) |
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def ast_node(**kwargs): |
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yield from _ast_nodes([root_ast_node]) |
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@graph_model.edge(type_='edge', |
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source=source, |
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target=target, |
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label=operator.itemgetter('type')) |
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def ast_edge(**kwargs): |
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yield from _ast_edge(root_ast_node) |
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return graph_model |
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102
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103
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def create_server(port: int, root_directory: str, open_browser: bool = True) -> threading.Thread: |
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import http.server |
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import socketserver |
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url = f"http://localhost:{port}" |
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class Handler(http.server.SimpleHTTPRequestHandler): |
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def __init__(self, *args, **kwargs): |
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super().__init__(*args, directory=root_directory, **kwargs) |
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113
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def serve(): |
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with socketserver.TCPServer(('', port), Handler) as httpd: |
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print("Serving at:", url) |
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httpd.serve_forever() |
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server_thread = threading.Thread(target=serve) |
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server_thread.daemon = True |
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server_thread.start() |
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121
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122
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if open_browser: |
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webbrowser.open(url) |
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124
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125
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126
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if __name__ == '__main__': |
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ast_model = ast_graph_model() |
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128
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# schema = graphinate.builders.GraphQLBuilder(ast_model).build() |
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# graphinate.graphql.server(schema) |
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131
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diagram = graphinate.builders.MermaidBuilder(ast_model).build(with_edge_labels=False) |
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133
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html_diagram = graphinate.mermaid.html(diagram) |
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135
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## Save the HTML diagram to a file and serve it |
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with TemporaryDirectory() as temp_dir: |
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with open(f"{temp_dir}/index.html", 'w') as f: |
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f.write(html_diagram) |
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# Serve the HTML diagram |
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create_server(port=8077, root_directory=temp_dir, open_browser=True) |
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143
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# Keep the main thread alive to allow the server to run |
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try: |
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while True: |
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pass |
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except KeyboardInterrupt: |
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print("Server stopped") |
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149
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erivlis /
graphinate
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