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johanrd / ember.js Public

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POC: Perf/handlebars v2 parser#13

Draft

johanrd wants to merge 23 commits intomainjohanrd/ember.js:mainfrom

perf/handlebars-v2-parserjohanrd/ember.js:perf/handlebars-v2-parserCopy head branch name to clipboard

Conversation Commits23 (23)Checks Files changed

Draft

POC: Perf/handlebars v2 parser#13
johanrd wants to merge 23 commits intomainfrom
perf/handlebars-v2-parser

Commits

Commits on Apr 16, 2026

test: parser escape-sequence, whitespace-control, and error-case contract tests
johanrd
committed
Replace Jison-generated HBS parser with hand-written recursive descent (v2-parser)
johanrd
committed
fix all location tracking bugs in v2-parser
johanrd
committed
fix hash loc on multi-line mustaches
johanrd
committed
fix infinite loop on escaped mustaches, add 181 stress tests
johanrd
committed
fix multiple escaped mustaches, match Jison content splitting
johanrd
committed
fix hash pair loc: don't consume trailing whitespace in sub-expressions
johanrd
committed
add round 3 stress tests: 1541 tests from real codebases + fuzzing
johanrd
committed
p
johanrd
committed
bench full pipeline
johanrd
committed
cl
johanrd
committed
Update comment to reflect parser's purpose
johanrd
committed
Update file paths to real-world-project
johanrd
committed
Update stress test project directory path
johanrd
committed
Update file paths for V2 and V2_SYNTAX
johanrd
committed
style: lint/prettier fixes for POC investigation files
johanrd
committed
Wire v2-parser into default preprocess, delete @handlebars/parser package
johanrd
committed
fix(v2-parser): emit Jison-compatible 'Expecting ID' error for bad path starts
johanrd
committed
fix(v2-parser): correct escape handling so \\{{ is literal backslash + real mustache
johanrd
committed

Commits on Apr 17, 2026

revert: accept digit path segments (matches real-world Ember usage)
johanrd
committed
test: add escaped literal with newline inside brackets
johanrd
committed
fix: narrow PathHead to VarHead before accessing .name (TS2339)
johanrd
committed
style: use module() callback form, match #21317 format
johanrd
committed

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