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feat: add CI & optimize: docs
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‎.github/workflows/ci.yml‎

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name: CI
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on:
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push:
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branches: [main]
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pull_request:
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types: [opened, synchronize, reopened, labeled]
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permissions:
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contents: write
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pull-requests: write
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jobs:
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vet_build_test:
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name: Vet & Build
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runs-on: ${{ matrix.os }}
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strategy:
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fail-fast: false
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matrix:
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os: [ubuntu-latest, windows-latest]
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Find and remove all .cpp files
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run: |
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find . -name "*.cpp" -type f -delete
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shell: bash
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- name: Run go vet
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run: go vet ./...
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- name: Build all packages
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run: go build ./...
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- name: Build cmd/gen
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run: go build ./cmd/gen
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run-test:
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name: Run Test (${{ matrix.name }})
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runs-on: ${{ matrix.os }}
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needs: [vet_build_test]
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strategy:
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fail-fast: false
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matrix:
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include:
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- os: ubuntu-latest
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name: Linux
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cmake_extra_args: -DCMAKE_INSTALL_PREFIX=/usr/local
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install_cmd: >-
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sudo cmake --install level-zero-build &&
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sudo cp level-zero-build/lib/libze_null.so /usr/local/lib/ &&
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sudo ldconfig
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- os: windows-latest
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name: Windows
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cmake_extra_args: ""
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install_cmd: >-
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for dll in $(find level-zero-build -name "*.dll");
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do cp "$dll" /c/Windows/System32/;
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done
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steps:
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- uses: actions/checkout@v4
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- uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Download Intel Level Zero Source Code
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shell: bash
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run: |
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# The apt runtime package (libze1) does NOT ship libze_null, which is
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# required for ZE_ENABLE_NULL_DRIVER=1. Build from source instead so the
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# loader and the null driver are both present
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RELEASE=$(curl -sf https://api.github.com/repos/oneapi-src/level-zero/releases/latest \
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| jq -r '.tag_name')
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git clone https://github.com/oneapi-src/level-zero.git --depth=1 \
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--branch "$RELEASE" level-zero-src
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- name: Build & Install Intel Level Zero
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shell: bash
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run: |
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cmake -S level-zero-src -B level-zero-build \
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-DCMAKE_BUILD_TYPE=Release \
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-DBUILD_TESTING=OFF \
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${{ matrix.cmake_extra_args }}
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cmake --build level-zero-build --config Release --parallel $(nproc)
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${{ matrix.install_cmd }}
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- name: Run examples
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shell: bash
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env:
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# Activate the Level Zero null driver (ze_null) so the loader
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# can enumerate a fake device on runners without real Intel GPU hardware.
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ZE_ENABLE_NULL_DRIVER: "1"
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run: go test -v -count=1 ./...
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go-generate:
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name: Run all Generates & Commit
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runs-on: ubuntu-latest
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needs: [vet_build_test]
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steps:
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- uses: actions/checkout@v4
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with:
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ref: ${{ github.head_ref || github.ref_name }}
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token: ${{ secrets.GITHUB_TOKEN }}
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- uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Download SYCL Linux
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run: |
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wget -q -O /tmp/sycl_linux.tar.gz https://github.com/intel/llvm/releases/download/v6.3.0/sycl_linux.tar.gz
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mkdir -p /tmp/sycl_linux
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tar -xzf /tmp/sycl_linux.tar.gz -C /tmp/sycl_linux
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- name: Add SYCL bin to PATH
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run: |
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ls -hl /tmp/sycl_linux
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echo "/tmp/sycl_linux/bin" >> $GITHUB_PATH
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- name: Install ocloc
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run: |
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wget -qO- https://repositories.intel.com/gpu/intel-graphics.key \
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| sudo gpg --dearmor --output /usr/share/keyrings/intel-graphics.gpg
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echo "deb [arch=amd64 signed-by=/usr/share/keyrings/intel-graphics.gpg] https://repositories.intel.com/gpu/ubuntu $(. /etc/os-release && echo $VERSION_CODENAME) unified" \
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| sudo tee /etc/apt/sources.list.d/intel-gpu.list
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sudo apt-get update -q
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sudo apt-get install -y intel-ocloc libigdfcl2 libigc2
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- name: Run go generate
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run: |
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go generate ./...
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gofmt -w .
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- name: Run golangci-lint
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uses: golangci/golangci-lint-action@v9
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with:
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version: v2.11
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args: --fix
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env:
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CGO_ENABLED: "0"
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- name: Check for changes
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id: diff
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run: |
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if [ -n "$(git diff --name-only)" ]; then
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echo "changed=true" >> "$GITHUB_OUTPUT"
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fi
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- name: Commit and push to PR branch
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if: steps.diff.outputs.changed == 'true' && github.event_name == 'pull_request'
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id: push_to_pr
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continue-on-error: true
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run: |
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git config user.name "github-actions[bot]"
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git config user.email "github-actions[bot]@users.noreply.github.com"
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git add -A
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git commit -m "chore: run go generate"
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git push
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- name: Comment on PR if push failed
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if: steps.diff.outputs.changed == 'true' && github.event_name == 'pull_request' && steps.push_to_pr.outcome == 'failure'
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uses: actions/github-script@v7
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with:
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script: |
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github.rest.issues.createComment({
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issue_number: context.issue.number,
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owner: context.repo.owner,
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repo: context.repo.repo,
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body: '`go generate` produced file changes but could not be pushed automatically (likely a fork PR). Please run `go generate ./... && gofmt -w .` locally and push the changes.'
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})
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- name: Create Pull Request
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if: steps.diff.outputs.changed == 'true' && github.event_name == 'push'
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uses: peter-evans/create-pull-request@v7
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with:
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token: ${{ secrets.GITHUB_TOKEN }}
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commit-message: "chore: run go generate"
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title: "chore: run go generate"
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body: |
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Automated PR created by CI.
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`go generate .` detected generated file differences and applied updates.
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branch: auto/go-generate
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delete-branch: true
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‎.golangci.yml‎

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version: "2"
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formatters:
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enable:
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- gofmt
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- goimports
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linters:
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default: none
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enable:
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- errcheck
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- staticcheck
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- govet
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- ineffassign
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- unused
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- misspell
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- unconvert
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- revive
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exclusions:
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rules:
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- path: \.cpp$
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linters:
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- typecheck
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- path: ^cmd/
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linters:
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- errcheck
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- staticcheck
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- govet
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- ineffassign
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- unused
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- misspell
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- unconvert
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- revive
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- linters:
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- errcheck
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source: "^\\s*defer "
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issues:
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max-issues-per-linter: 0
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max-same-issues: 0

‎bezier.go‎

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return n
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}
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// QuadraticBezier computes points along a quadratic Bezier curve defined by
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// (x0, y0), (x1, y1), (x2, y2).
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//
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// QuadraticBezier 计算由 (x0, y0)、(x1, y1)、(x2, y2) 定义的二次贝塞尔曲线上的点。
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func QuadraticBezier(x0, y0, x1, y1, x2, y2 float64) []Point {
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n := quadraticBezierLen(x0, y0, x1, y1, x2, y2)
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result := make([]Point, n)
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return n
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}
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// CubicBezier computes points along a cubic Bezier curve defined by
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// (x0, y0), (x1, y1), (x2, y2), (x3, y3).
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//
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// CubicBezier 计算由 (x0, y0)、(x1, y1)、(x2, y2)、(x3, y3) 定义的三次贝塞尔曲线上的点。
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func CubicBezier(x0, y0, x1, y1, x2, y2, x3, y3 float64) []Point {
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n := cubicBezierLen(x0, y0, x1, y1, x2, y2, x3, y3)
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result := make([]Point, n)

‎color.go‎

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"unsafe"
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)
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// Predefined colors.
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//
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// 预定义颜色。
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var (
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White = color.RGBA{255, 255, 255, 255}
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Black = color.RGBA{0, 0, 0, 255}

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