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pawarser(init): start extracting the parser lib
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parent
a693b57447
commit
a3ab844ba7
9
Cargo.lock
generated
9
Cargo.lock
generated
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@ -1159,6 +1159,15 @@ version = "1.0.15"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
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[[package]]
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name = "pawarser"
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version = "0.1.0"
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dependencies = [
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"drop_bomb",
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"enumset",
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"rowan",
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]
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[[package]]
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name = "petgraph"
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version = "0.6.5"
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@ -6,7 +6,7 @@ members = [
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"crates/lang",
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"crates/svg-filters",
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"crates/prowocessing",
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"crates/executor-poc",
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"crates/executor-poc", "crates/pawarser",
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]
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resolver = "2"
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12
crates/pawarser/Cargo.toml
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12
crates/pawarser/Cargo.toml
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@ -0,0 +1,12 @@
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[package]
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name = "pawarser"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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rowan = "0.15.15"
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drop_bomb = "0.1.5"
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enumset = "1.1.3"
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[lints]
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workspace = true
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39
crates/pawarser/src/lib.rs
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39
crates/pawarser/src/lib.rs
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@ -0,0 +1,39 @@
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#![feature(iter_collect_into)]
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pub mod parser {
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pub mod input {
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use enumset::{EnumSet, EnumSetType};
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struct Input<'src, 'toks, SyntaxKind: EnumSetType + Into<rowan::SyntaxKind>> {
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raw: &'toks Vec<(SyntaxKind, &'src str)>,
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// enumset of meaningless tokens
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semantically_meaningless: EnumSet<SyntaxKind>,
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// indices of non-meaningless tokens
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meaningful_toks: Vec<usize>,
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}
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impl<'src, 'toks, SyntaxKind: EnumSetType + Into<rowan::SyntaxKind>>
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Input<'src, 'toks, SyntaxKind>
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{
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pub fn new(
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raw_toks: &'toks Vec<(SyntaxKind, &'src str)>,
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meaningless: Option<EnumSet<SyntaxKind>>,
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) -> Self {
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let mut meaningful_toks = Vec::new();
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if let Some(meaningless) = meaningless {
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let meaningful_toks = raw_toks
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.iter()
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.enumerate()
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.filter_map(|(i, tok)| (!meaningless.contains(tok.0)).then_some(i))
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.collect_into(&mut meaningful_toks);
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}
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Self {
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raw: raw_toks,
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semantically_meaningless: meaningless.unwrap_or_default(),
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meaningful_toks,
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}
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}
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}
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}
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}
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