Example #1
0
// can't re-use the legacy native function resolver because it's a method of a
// type that provides its own helpers and contextual data, all of which would
// be too hard to reproduce
func (pkgr *Packager) resolveNativeDeclaration(f *tp.Function, path string) {
	// first we should check that the signature refers to something that actually exists
	sigStr := strings.Replace(f.Stub(pkgr.Package), ",", ".", -1)
	if whale.LookupBuiltIn(sigStr) == nil {
		panic(fmt.Sprintf("attempt to provide signature for nonexistent native function `%s` in `%s`", sigStr, path))
	}

	// now turn the type names into the appropriate numeric ids
	if returnType := f.GetReturnType(); len(returnType) > 0 {
		f.ReturnTypeId = proto.Int32(int32(pkgr.TypeMap[returnType]))
		f.ReturnType = nil
	}
	if scopeType := f.GetScopeType(); len(scopeType) > 0 {
		f.ScopeTypeId = proto.Int32(int32(pkgr.TypeMap[scopeType]))
		f.ScopeType = nil
	}
	if opensType := f.GetOpensType(); len(opensType) > 0 {
		f.OpensTypeId = proto.Int32(int32(pkgr.TypeMap[opensType]))
		f.OpensType = nil
	}
	for _, arg := range f.Args {
		if typeName := arg.GetTypeString(); len(typeName) > 0 {
			arg.TypeId = proto.Int32(int32(pkgr.TypeMap[typeName]))
			arg.TypeString = nil
		}
	}
}