87 lines
2.5 KiB
Rust
87 lines
2.5 KiB
Rust
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use lsp_types::{Range, SemanticToken, SemanticTokenModifier, SemanticTokenType};
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const SUPPORTED_TYPES: &[SemanticTokenType] = &[
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SemanticTokenType::COMMENT,
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SemanticTokenType::KEYWORD,
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SemanticTokenType::STRING,
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SemanticTokenType::NUMBER,
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SemanticTokenType::REGEXP,
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SemanticTokenType::OPERATOR,
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SemanticTokenType::NAMESPACE,
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SemanticTokenType::TYPE,
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SemanticTokenType::STRUCT,
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SemanticTokenType::CLASS,
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SemanticTokenType::INTERFACE,
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SemanticTokenType::ENUM,
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SemanticTokenType::TYPE_PARAMETER,
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SemanticTokenType::FUNCTION,
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SemanticTokenType::MEMBER,
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SemanticTokenType::PROPERTY,
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SemanticTokenType::MACRO,
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SemanticTokenType::VARIABLE,
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SemanticTokenType::PARAMETER,
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SemanticTokenType::LABEL,
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];
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const SUPPORTED_MODIFIERS: &[SemanticTokenModifier] = &[
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SemanticTokenModifier::DOCUMENTATION,
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SemanticTokenModifier::DECLARATION,
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SemanticTokenModifier::DEFINITION,
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SemanticTokenModifier::REFERENCE,
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SemanticTokenModifier::STATIC,
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SemanticTokenModifier::ABSTRACT,
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SemanticTokenModifier::DEPRECATED,
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SemanticTokenModifier::ASYNC,
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SemanticTokenModifier::VOLATILE,
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SemanticTokenModifier::READONLY,
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];
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pub(crate) fn supported_token_types() -> &'static [SemanticTokenType] {
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SUPPORTED_TYPES
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}
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pub(crate) fn supported_token_modifiers() -> &'static [SemanticTokenModifier] {
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SUPPORTED_MODIFIERS
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}
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#[derive(Default)]
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pub(crate) struct SemanticTokensBuilder {
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prev_line: u32,
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prev_char: u32,
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data: Vec<SemanticToken>,
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}
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impl SemanticTokensBuilder {
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pub fn push(&mut self, range: Range, token_index: u32, modifier_bitset: u32) {
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let mut push_line = range.start.line as u32;
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let mut push_char = range.start.character as u32;
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if !self.data.is_empty() {
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push_line -= self.prev_line;
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if push_line == 0 {
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push_char -= self.prev_char;
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}
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}
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// A token cannot be multiline
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let token_len = range.end.character - range.start.character;
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let token = SemanticToken {
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delta_line: push_line,
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delta_start: push_char,
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length: token_len as u32,
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token_type: token_index,
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token_modifiers_bitset: modifier_bitset,
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};
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self.data.push(token);
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self.prev_line = range.start.line as u32;
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self.prev_char = range.start.character as u32;
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}
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pub fn build(self) -> Vec<SemanticToken> {
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self.data
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}
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}
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