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Merge pull request #765 from xhcoding/semantic-tokens
Highlight some semantic tokens
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| import time | ||
|
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| from core.handler import Handler | ||
| from core.utils import * | ||
|
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| class SemanticTokens(Handler): | ||
| name = "semantic_tokens" | ||
| method = "textDocument/semanticTokens/full" | ||
| cancel_on_change = False | ||
| send_document_uri = True | ||
| provider = "semantic_tokens_provider" | ||
|
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| def __init__(self, *args, **kwargs): | ||
| super().__init__(*args, **kwargs) | ||
| self.buffer_name = None | ||
| self.range_begin = None | ||
| self.range_end = None | ||
|
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| self.pre_last_change = (time.time(), time.time()) | ||
| self.tokens = [] | ||
| self.render_tokens = set() | ||
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| self.type_face_names = None | ||
| self.type_face_names_dict = dict() | ||
| self.type_modifier_face_names = None | ||
| self.ignore_modifier_limit_types = None | ||
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| def process_request(self, buffer_name, range_begin, range_end, use_cache): | ||
| self.buffer_name = buffer_name | ||
| self.range_begin = range_begin | ||
| self.range_end = range_end | ||
| if not use_cache: | ||
| self.render_tokens = set() | ||
| return dict() | ||
|
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|
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| def process_response(self, response): | ||
| if response is None: | ||
| return | ||
| data = response.get("data") | ||
| if data is None: | ||
| return | ||
| self.tokens = data | ||
| self.update_tokens(self.tokens) | ||
|
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| def update_tokens(self, tokens): | ||
| if tokens is None: | ||
| return | ||
| index = 0 | ||
| cur_line = 0 | ||
| start_character = 0 | ||
| render_tokens = set() | ||
| while index < len(tokens): | ||
| if tokens[index] != 0: | ||
| start_character = 0 | ||
| cur_line += tokens[index] | ||
| start_character += tokens[index + 1] | ||
| if (cur_line >= self.range_begin["line"] and | ||
| cur_line <= self.range_end["line"]): | ||
| faces_index = self.get_faces_index(tokens[index + 3], tokens[index + 4]) | ||
| if faces_index is not None: | ||
| render_tokens.add((cur_line, start_character, tokens[index + 2], faces_index[0], faces_index[1])) | ||
| index = index + 5 | ||
|
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| (new_tokens, old_tokens) = self.calc_diff_tokens(self.render_tokens, render_tokens) | ||
|
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| if len(new_tokens) != 0 or len(old_tokens) != 0: | ||
| eval_in_emacs("lsp-bridge-semantic-tokens--update", self.buffer_name, list(old_tokens), self.absolute_line_to_relative(new_tokens)) | ||
| self.render_tokens = render_tokens | ||
|
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| def get_faces_index(self, type_index, type_modifier_index): | ||
| type_name = self.file_action.single_server.semantic_tokens_provider["legend"]["tokenTypes"][type_index] | ||
| ignore_modifier = self.is_ignore_modifier(type_name) | ||
| if type_modifier_index == 0 and not ignore_modifier: | ||
| return None | ||
| type_face_index = self.get_type_face_index(type_name) | ||
| if type_face_index is None: | ||
| return None | ||
| type_modifier_faces_index = self.get_type_modifier_faces_index(type_modifier_index) | ||
| if len(type_modifier_faces_index) == 0 and not ignore_modifier: | ||
| return None | ||
| return (type_face_index, type_modifier_faces_index) | ||
|
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| def get_type_face_index(self, type_name): | ||
| if self.type_face_names is None: | ||
| [type_faces] = get_emacs_vars(["lsp-bridge-semantic-tokens-type-faces"]) | ||
| if type_faces is not None: | ||
| faces = type_faces.I | ||
| self.type_face_names = dict() | ||
| for index in range(len(faces)): | ||
| self.type_face_names[faces[index][0]] = index | ||
| else: | ||
| return None | ||
| face_index = self.type_face_names.get(type_name) | ||
| return face_index | ||
|
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| def get_type_modifier_faces_index(self, type_modifier_index): | ||
| if self.type_modifier_face_names is None: | ||
| [type_modifier_faces] = get_emacs_vars(["lsp-bridge-semantic-tokens-type-modifier-faces"]) | ||
| if type_modifier_faces is not None: | ||
| faces = type_modifier_faces.I | ||
| self.type_modifier_face_names = dict() | ||
| for index in range(len(faces)): | ||
| self.type_modifier_face_names[faces[index][0]] = index | ||
| else: | ||
| return () | ||
|
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| token_modifiers = self.file_action.single_server.semantic_tokens_provider["legend"]["tokenModifiers"] | ||
| type_modifier_names = [token_modifiers[index] for index in self.find_ones(type_modifier_index)] | ||
| type_modifier_faces_index = [] | ||
| for name in type_modifier_names: | ||
| index = self.type_modifier_face_names.get(name) | ||
| if index is not None: | ||
| type_modifier_faces_index.append(index) | ||
| return tuple(type_modifier_faces_index) | ||
|
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| def is_ignore_modifier(self, type_name): | ||
| if self.ignore_modifier_limit_types is None: | ||
| [types] = get_emacs_vars(["lsp-bridge-semantic-tokens-ignore-modifier-limit-types"]) | ||
| types = types.I | ||
| if types is not None: | ||
| self.ignore_modifier_limit_types = dict() | ||
| for index in range(len(types)): | ||
| self.ignore_modifier_limit_types[types[index]] = index | ||
|
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| return type_name in self.ignore_modifier_limit_types | ||
|
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| def calc_diff_tokens(self, pre_tokens, cur_tokens): | ||
| common_tokens = cur_tokens & pre_tokens | ||
| new_tokens = list(cur_tokens - common_tokens) | ||
| old_tokens = list(pre_tokens - common_tokens) | ||
| new_tokens.sort(key = lambda token : token[0]) | ||
| old_tokens.sort(key = lambda token : token[0]) | ||
| return (new_tokens, old_tokens) | ||
|
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| def absolute_line_to_relative(self, tokens): | ||
| relative_tokens = [] | ||
| cur_line = 0 | ||
| delta_line = 0 | ||
| start_character = 0 | ||
| delta_character = 0 | ||
| for token in tokens: | ||
| delta_line = token[0] - cur_line | ||
| if token[0] != cur_line: | ||
| cur_line = token[0] | ||
| start_character = 0 | ||
| delta_character = token[1] - start_character | ||
| start_character = token[1] | ||
| relative_tokens.append((delta_line, delta_character, token[2], token[3], token[4])) | ||
|
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| return relative_tokens | ||
|
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| def find_ones(self, num): | ||
| ones = [] | ||
| bit = 0 | ||
| while num > 0: | ||
| if num & 1: | ||
| ones.append(bit) | ||
| num >>= 1 | ||
| bit += 1 | ||
| return ones |
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