Example #1
0
func (p *importer) signature() *types.Signature {
	var recv *types.Var
	if p.int() != 0 {
		recv = p.param()
	}
	return types.NewSignature(nil, recv, p.tuple(), p.tuple(), p.int() != 0)
}
Example #2
0
// Signature = Parameters [ Result ] .
// Result    = Type | Parameters .
//
func (p *parser) parseSignature(recv *types.Var) *types.Signature {
	params, isVariadic := p.parseParameters()

	// optional result type
	var results []*types.Var
	if p.tok == '(' {
		var variadic bool
		results, variadic = p.parseParameters()
		if variadic {
			p.error("... not permitted on result type")
		}
	}

	return types.NewSignature(nil, recv, types.NewTuple(params...), types.NewTuple(results...), isVariadic)
}
Example #3
0
// NamedType = TypeName Type { Method } .
// Method    = "func" "(" Param ")" Name ParamList ResultList ";" .
func (p *parser) parseNamedType(n int) types.Type {
	obj := p.parseTypeName()

	pkg := obj.Pkg()
	typ := obj.Type()
	p.typeMap[n] = typ

	nt, ok := typ.(*types.Named)
	if !ok {
		// This can happen for unsafe.Pointer, which is a TypeName holding a Basic type.
		pt := p.parseType(pkg)
		if pt != typ {
			p.error("unexpected underlying type for non-named TypeName")
		}
		return typ
	}

	underlying := p.parseType(pkg)
	if nt.Underlying() == nil {
		nt.SetUnderlying(underlying.Underlying())
	}

	for p.tok == scanner.Ident {
		// collect associated methods
		p.expectKeyword("func")
		p.expect('(')
		receiver, _ := p.parseParam(pkg)
		p.expect(')')
		name := p.parseName()
		params, isVariadic := p.parseParamList(pkg)
		results := p.parseResultList(pkg)
		p.expect(';')

		sig := types.NewSignature(pkg.Scope(), receiver, params, results, isVariadic)
		nt.AddMethod(types.NewFunc(token.NoPos, pkg, name, sig))
	}

	return nt
}
Example #4
0
// FunctionType = ParamList ResultList .
func (p *parser) parseFunctionType(pkg *types.Package) *types.Signature {
	params, isVariadic := p.parseParamList(pkg)
	results := p.parseResultList(pkg)
	return types.NewSignature(pkg.Scope(), nil, params, results, isVariadic)
}