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https://gitlab.gnome.org/jwestman/blueprint-compiler.git
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3ba85d1e47
Many completion snippets insert more than just the name. For example,
the object completer inserts the braces and places your cursor inside
them automatically, to save some typing. However, if you're changing the
class of an existing object, this isn't what you want. Changed so that
if the next token is '{', only the name is inserted.
Made similar changes to the property and signal completers.
92 lines
3.1 KiB
Python
92 lines
3.1 KiB
Python
# completions_utils.py
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#
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# Copyright 2021 James Westman <james@jwestman.net>
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#
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# This file is free software; you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation; either version 3 of the
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# License, or (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# SPDX-License-Identifier: LGPL-3.0-or-later
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import typing as T
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from dataclasses import dataclass
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from .ast_utils import AstNode
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from .lsp_utils import Completion
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from .tokenizer import Token, TokenType
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@dataclass
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class CompletionContext:
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client_supports_completion_choice: bool
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ast_node: AstNode
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match_variables: T.List[str]
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next_token: Token
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new_statement_patterns = [
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[(TokenType.PUNCTUATION, "{")],
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[(TokenType.PUNCTUATION, "}")],
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[(TokenType.PUNCTUATION, "]")],
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[(TokenType.PUNCTUATION, ";")],
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]
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def completer(applies_in: T.List, matches: T.List = [], applies_in_subclass=None):
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def decorator(func: T.Callable[[CompletionContext], T.Generator[Completion]]):
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def inner(prev_tokens: T.List[Token], next_token: Token, ast_node, lsp):
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# For completers that apply in ObjectContent nodes, we can further
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# check that the object is the right class
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if applies_in_subclass is not None:
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type = ast_node.root.gir.get_type(
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applies_in_subclass[1], applies_in_subclass[0]
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)
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if not ast_node.gir_class or not ast_node.gir_class.assignable_to(type):
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return
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any_match = len(matches) == 0
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match_variables: T.List[str] = []
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for pattern in matches:
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match_variables = []
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if len(pattern) <= len(prev_tokens):
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for i in range(0, len(pattern)):
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type, value = pattern[i]
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token = prev_tokens[i - len(pattern)]
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if token.type != type or (
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value is not None and str(token) != value
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):
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break
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if value is None:
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match_variables.append(str(token))
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else:
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any_match = True
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break
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if not any_match:
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return
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context = CompletionContext(
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client_supports_completion_choice=lsp.client_supports_completion_choice,
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ast_node=ast_node,
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match_variables=match_variables,
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next_token=next_token,
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)
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yield from func(context)
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for c in applies_in:
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c.completers.append(inner)
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return inner
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return decorator
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