genFuncSig generates just the signature for binding returns false if function is not suitable for python binding (e.g., multiple return values)
(sym *symbol, fsym *Func)
| 36 | // returns false if function is not suitable for python |
| 37 | // binding (e.g., multiple return values) |
| 38 | func (g *pyGen) genFuncSig(sym *symbol, fsym *Func) bool { |
| 39 | isMethod := (sym != nil) |
| 40 | |
| 41 | if fsym.sig == nil { |
| 42 | return false |
| 43 | } |
| 44 | |
| 45 | gname := fsym.GoName() |
| 46 | if g.cfg.RenameCase { |
| 47 | gname = toSnakeCase(gname) |
| 48 | } |
| 49 | |
| 50 | gname, gdoc, err := extractPythonName(gname, fsym.Doc()) |
| 51 | if err != nil { |
| 52 | return false |
| 53 | } |
| 54 | ifchandle, gdoc := isIfaceHandle(gdoc) |
| 55 | |
| 56 | sig := fsym.sig |
| 57 | args := sig.Params() |
| 58 | res := sig.Results() |
| 59 | nargs := 0 |
| 60 | nres := len(res) |
| 61 | |
| 62 | // note: this is enforced in creation of Func, in newFuncFrom |
| 63 | if nres > 2 { |
| 64 | return false |
| 65 | } |
| 66 | if nres == 2 && !fsym.err { |
| 67 | return false |
| 68 | } |
| 69 | |
| 70 | var ( |
| 71 | goArgs []string |
| 72 | pyArgs []string |
| 73 | wpArgs []string |
| 74 | ) |
| 75 | |
| 76 | if isMethod { |
| 77 | goArgs = append(goArgs, "_handle CGoHandle") |
| 78 | pyArgs = append(pyArgs, fmt.Sprintf("param('%s', '_handle')", PyHandle)) |
| 79 | wpArgs = append(wpArgs, "self") |
| 80 | } |
| 81 | |
| 82 | nargs = len(args) |
| 83 | for i := 0; i < nargs; i++ { |
| 84 | arg := args[i] |
| 85 | sarg := current.symtype(arg.GoType()) |
| 86 | if sarg == nil { |
| 87 | return false |
| 88 | } |
| 89 | anm := pySafeArg(arg.Name(), i) |
| 90 | |
| 91 | if ifchandle && arg.sym.goname == "interface{}" { |
| 92 | goArgs = append(goArgs, fmt.Sprintf("%s %s", anm, CGoHandle)) |
| 93 | pyArgs = append(pyArgs, fmt.Sprintf("param('%s', '%s')", PyHandle, anm)) |
| 94 | } else { |
| 95 | goArgs = append(goArgs, fmt.Sprintf("%s %s", anm, sarg.cgoname)) |
no test coverage detected