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WordPress / sqlite-database-integration Public

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Parser + lexer performance: consolidated 2–3× end-to-end speedup#378

Draft

JanJakes wants to merge 30 commits into

trunkWordPress/sqlite-database-integration:trunkfrom

performanceWordPress/sqlite-database-integration:performanceCopy head branch name to clipboard

Conversation Commits30 (30)Checks Files changed

Draft

Parser + lexer performance: consolidated 2–3× end-to-end speedup#378
JanJakes wants to merge 30 commits into
trunkfrom
performance

Commits

Commits on Jun 5, 2026

Inline terminal matching and defer parse node allocation
JanJakes
committed
Use per-branch FIRST sets to skip unreachable branches
JanJakes
committed
Short-circuit nullable-fallback and inline single-branch fragments
JanJakes
committed
Strip epsilon markers and cache grammar refs on the parser
JanJakes
committed
Return fragment results as children arrays, skip the intermediate node
JanJakes
committed
Append end-of-input sentinel token to drop range checks
JanJakes
committed
Embed branch symbol sequences directly in the per-token selector
JanJakes
committed
Compare selectStatement by rule id instead of by name
JanJakes
committed
Re-align grammar and parser whitespace after recent changes
JanJakes
committed
Deduplicate selector entries while embedding branch sequences
JanJakes
committed
Add direct-return fast path for single-candidate rules
JanJakes
committed
Speed up the lexer with cheaper byte checks
JanJakes
committed
Skip parent constructor in WP_MySQL_Token
JanJakes
committed
Use ! empty() in WP_Parser_Node::has_child()
JanJakes
committed
Inline leading-whitespace skip in lexer's token loops
JanJakes
committed
Catch identifier and keyword tokens at the top of the chain
JanJakes
committed
Add a single-byte operator dispatch table
JanJakes
committed
Document non-obvious lexer dispatch conditions
JanJakes
committed
Unroll whitespace check in '--' line-comment dispatch
JanJakes
committed
Extract WP_Parser::set_tokens() helper for shared sentinel handling
JanJakes
committed
Update native parser to consume branches_for_token + nullable_branches
JanJakes
committed
Materialize native AST eagerly into plain WP_Parser_Node instances
JanJakes
committed
Mark WP_Parser_Node as final
JanJakes
committed
Document parent-ctor bypass and remaining_tokens duplication
JanJakes
committed
Add unit tests for grammar build-time transforms
JanJakes
committed
Refresh native-extension benchmark numbers
JanJakes
committed
Fall back to pure PHP when the native extension grammar ABI mismatches
JanJakes
committed
Speed up grammar construction with a worklist fixpoint and lazy selectors
JanJakes
committed
Unify unit-test CI into one matrix and disable Xdebug
JanJakes
committed
Cache the Rust extension build in CI
JanJakes
committed

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