64df39b3c5
- Consolidate _demo, _pydemo, _embdemo into single _demo directory structure
- Organize demos by language: _demo/{go,py,c,embed}/
- Categorize demos based on imports:
- Python library demos (py imports) → _demo/py/
- C/C++ library demos (c/cpp imports) → _demo/c/
- Go-specific demos → _demo/go/
- Embedded demos → _demo/embed/
- Move C-related demos (asm*, cabi*, cgo*, linkname, targetsbuild) from go/ to c/
- Update all path references in README.md and GitHub workflows
- Improve demo organization and navigation as requested in #1256
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
51 lines
770 B
Go
51 lines
770 B
Go
package main
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import (
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"unsafe"
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"github.com/goplus/lib/c"
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"github.com/goplus/lib/c/math"
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"github.com/goplus/llgo/_demo/c/cppmintf/foo"
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)
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type Bar struct {
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foo.Callback
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a c.Int
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}
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func NewBar(a c.Int) *Bar {
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return &Bar{
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Callback: foo.Callback{
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ICalc: foo.ICalc{
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Vptr: &foo.ICalcVtbl{
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Calc: c.Func((*Bar).sqrt),
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},
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},
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IVal: foo.IVal{
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Vptr: &foo.IValVtbl{
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Val: c.Func(bar_IVal_getA),
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},
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},
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},
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a: a,
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}
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}
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func (p *Bar) getA() c.Int {
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return p.a
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}
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func bar_IVal_getA(this c.Pointer) c.Int {
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const delta = -int(unsafe.Offsetof(foo.Callback{}.IVal))
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return (*Bar)(c.Advance(this, delta)).getA()
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}
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func (p *Bar) sqrt(v float64) float64 {
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return math.Sqrt(v)
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}
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func main() {
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bar := NewBar(1)
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foo.F(&bar.Callback)
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}
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