feat(compiler): annotate patchFlags in generated code

build: use brotli for checking compressed file sizes

wip(compiler): codegen node w/ block optimization for v-for

test(compiler): codegen tests for Sequence & Conditional expressions

test(compiler): tests for vIf codegen w/ blocks optimization

wip(compiler): generate blocks for v-if

wip: Sequence & Conditional expressions for AST

build(deps-dev): bump lint-staged from 9.4.0 to 9.4.1

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 9.4.0 to 9.4.1.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](https://github.com/okonet/lint-staged/compare/v9.4.0...v9.4.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

feat(compiler): generate patchFlags for runtime

test: record snapshots for text optimization

feat(compiler): optimize text by merging adjacent nodes

wip: drop class opt for now + move lazy requires to utils

perf: avoid using WeakSet for isRef check

perf: using a _isVNode field is faster than a weakset

build(deps-dev): bump rollup from 1.21.4 to 1.22.0

Bumps [rollup](https://github.com/rollup/rollup) from 1.21.4 to 1.22.0.
- [Release notes](https://github.com/rollup/rollup/releases)
- [Changelog](https://github.com/rollup/rollup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rollup/rollup/compare/v1.21.4...v1.22.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump @microsoft/api-extractor from 7.4.5 to 7.4.6

Bumps [@microsoft/api-extractor](https://github.com/microsoft/rushstack) from 7.4.5 to 7.4.6.
- [Release notes](https://github.com/microsoft/rushstack/releases)
- [Commits](https://github.com/microsoft/rushstack/compare/@microsoft/gulp-core-build-typescript_v7.4.5...@microsoft/gulp-core-build-typescript_v7.4.6)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump rollup-plugin-alias from 2.0.0 to 2.0.1

Bumps [rollup-plugin-alias](https://github.com/frostney/rollup-plugin-alias) from 2.0.0 to 2.0.1.
- [Release notes](https://github.com/frostney/rollup-plugin-alias/releases)
- [Changelog](https://github.com/rollup/rollup-plugin-alias/blob/master/CHANGELOG.md)
- [Commits](https://github.com/frostney/rollup-plugin-alias/compare/v2.0.0...v2.0.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

feat(compiler): handle complex destructure expressions in v-for

test: improve coverage

test(compiler): test v-slot transform

test: test slotFunction codegen

refactor: simplify slot extraneous child check

refactor(compiler): split slot / slot outlet / slot scope handling into separate transforms

fix(compiler): improve auto prefixing cases

wip(compiler): tweak codegen, avoid duplicated asset resolution, improve formatting

feat(compiler): transform component slots

feat(compiler): transform slot outlets

refactor(compiler): separate Interpolation, SimpleExpression & CompoundExpression types

refactor(compiler): provide context.resetMapping()

fix(compiler): generate correct mappings for v-for and object properties (#69)

build(deps-dev): bump rollup-plugin-typescript2 from 0.24.2 to 0.24.3

Bumps [rollup-plugin-typescript2](https://github.com/ezolenko/rollup-plugin-typescript2) from 0.24.2 to 0.24.3.
- [Release notes](https://github.com/ezolenko/rollup-plugin-typescript2/releases)
- [Commits](https://github.com/ezolenko/rollup-plugin-typescript2/compare/0.24.2...0.24.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

build(deps-dev): bump lint-staged from 9.3.0 to 9.4.0

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 9.3.0 to 9.4.0.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](https://github.com/okonet/lint-staged/compare/v9.3.0...v9.4.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

feat(compiler): correct source map generation

fix: do not use lookbehind regex yet

build: adjust compiler-core export to avoid collision

feat(compiler): include names in source map

build(deps-dev): bump @microsoft/api-extractor from 7.4.4 to 7.4.5

Bumps [@microsoft/api-extractor](https://github.com/Microsoft/web-build-tools) from 7.4.4 to 7.4.5.
- [Release notes](https://github.com/Microsoft/web-build-tools/releases)
- [Commits](https://github.com/Microsoft/web-build-tools/compare/@microsoft/gulp-core-build-typescript_v7.4.4...@microsoft/gulp-core-build-typescript_v7.4.5)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

test: compiler integration tests

test: test for transformStyle

fix: fix source map by fixing advancePositionWithMutation

wip(compiler): adjust statement positions

feat(compiler): transformStyle + context.hoist

wip(compiler): property deduping

feat(compiler): include ast in compile result

chore: fix comment

test: move source map test to compile.spec.ts

test: test the right branches of code

chore: fix browser build treeshaking for transformExpression

test: tests for v-on transform

test: tests for v-bind transform

feat: renderList helper for v-for

feat: v-on with no argument

test: more coverage

test: improve coverage

chore: test todos

test: tests for codegen

feat(runtime): support rendering comment nodes

test: finish tests for transformExpression

wip: test for transformExpression

build(deps-dev): bump @microsoft/api-extractor from 7.4.2 to 7.4.4

Bumps [@microsoft/api-extractor](https://github.com/Microsoft/web-build-tools) from 7.4.2 to 7.4.4.
- [Release notes](https://github.com/Microsoft/web-build-tools/releases)
- [Commits](https://github.com/Microsoft/web-build-tools/compare/@microsoft/api-extractor_v7.4.2...@microsoft/gulp-core-build-typescript_v7.4.4)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

test: test transformElements

test: refactor vIf tests

test: refactor vFor tests

feat(compiler): ensure interpolation expressions are wrapped with toString()

fix: handle nested scope identifiers

refactor: useWith -> prefixIdentifiers

feat(compiler): expression prefixing + v-for scope analysis

wip: fix transform order

wip: expression rewrite

chore: fix todo

build(deps-dev): bump lint-staged from 9.2.5 to 9.3.0

Bumps [lint-staged](https://github.com/okonet/lint-staged) from 9.2.5 to 9.3.0.
- [Release notes](https://github.com/okonet/lint-staged/releases)
- [Commits](https://github.com/okonet/lint-staged/compare/v9.2.5...v9.3.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

feat(compiler): handle runtime helper injection

feat(compiler): basic v-bind & v-on transforms

wip: improve v-if & v-for codegen output formatting

chore: rename test dir

fix: make sure v-if and v-for work together

wip: improve v-if codegen output formatting

fix(transform): transform should still apply even when node is removed

feat(compiler): element codegen

chore: fix parserOptions usage of props

test: fix tests

feat(compiler): element transform

wip: element transforms

test: add tests for rendererChildren (#52)

* test: [wip] add tests for rendererChildren

* chore: use serializeInner for clearer output

* fix: should remove the text node if content is empty

* test: also test for appended content

* test: inserting & removing

* test: moving children

* refactor: use a helper function

* test: finish tests

* test: duplicate keys tests belong to keyed children block

* fix(runtime-test): fix insert when moving node in the same parent

* fix: fix failing test cases for rendererChildren

* test: handle rendererChildren edge case

feat(compiler): set sourcesContent for source map

refactor: move compile into compiler-core

test: test on-the-fly compilation

chore: tweak size script

feat: on-the-fly template compilation

feat: expose compiler APIs

build: move named char references to json file to speed up build

feat(compiler): basic codegen with source map support

perf(compiler): further improve advanceBy perf

test(compiler): transformIf

perf: avoid cloning in parser advanceBy

refactor: cleanup unused variables in vFor

test: update snapshots

chore: nest v-for tests

test(compiler): tests for ast transform

feat(compiler-core): add parser transform for v-for directive (#65)

* feat(compiler-core): add parser transform for v-for directive

* fix: Include source location for expressions

* chore: remove comment

* refactor(compiler-core): extract hepler functions to utils