mirror of https://github.com/mappu/miqt.git
89 lines
1.9 KiB
Go
89 lines
1.9 KiB
Go
package main
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import (
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"go/format"
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"log"
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"strings"
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)
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func emitParametersGo(params []CppParameter) string {
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tmp := make([]string, 0, len(params))
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for _, p := range params {
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tmp = append(tmp, p.ParameterType+" "+p.ParameterName)
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}
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return strings.Join(tmp, ", ")
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}
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func emitGo(src *CppParsedHeader) (string, error) {
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ret := strings.Builder{}
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ret.WriteString(`package miqt
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/*
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#cgo CFLAGS: -fPIC
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#cgo pkg-config: Qt5Widgets
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#include "binding.h"
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*/
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import "C"
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`)
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for _, c := range src.Classes {
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ret.WriteString(`
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type ` + c.ClassName + ` struct {
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h C.P` + c.ClassName + `
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}
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func (this *` + c.ClassName + `) cPointer() C.P` + c.ClassName + ` {
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if this == nil {
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return nil
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}
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return this.h
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}
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`)
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for i, ctor := range c.Ctors {
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ret.WriteString(`
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// New` + c.ClassName + maybeSuffix(i) + ` constructs a new ` + c.ClassName + ` object.
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func New` + c.ClassName + maybeSuffix(i) + `(` + emitParametersGo(ctor.Parameters) + `) {
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ret := C.` + c.ClassName + `_new` + maybeSuffix(i) + `(` + emitParametersNames(ctor.Parameters, "") + `)
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return &` + c.ClassName + `{h: ret}
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}
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`)
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}
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for _, m := range c.Methods {
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// TODO for any known pointer type, call its cPointer() method instead of passing it directly
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shouldReturn := "return "
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returnTypeDecl := m.ReturnType
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if returnTypeDecl == "void" {
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shouldReturn = ""
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returnTypeDecl = ""
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}
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ret.WriteString(`
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func (this *` + c.ClassName + `) ` + m.MethodName + `(` + emitParametersGo(m.Parameters) + `) ` + returnTypeDecl + ` {
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` + shouldReturn + ` C.` + c.ClassName + `_` + m.SafeMethodName() + `(` + emitParametersNames(m.Parameters, c.ClassName) + `)
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}
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`)
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}
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}
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// Run gofmt over the result
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formattedSrc, err := format.Source([]byte(ret.String()))
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if err != nil {
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log.Printf("gofmt failure: %v", err)
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formattedSrc = []byte(ret.String())
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}
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return string(formattedSrc), nil
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}
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