Implement list of maps
Allow property value to be a list of maps, e.g.
my_module {
my_list: [
{ name: "foo", value: 42, something: true, },
{ name: "bar", value: 34, something: false, },
],
}
Test: internal
Change-Id: I2fc37d692aac39f23c9aa7bda2859ab49f3bc672
This commit is contained in:
Sasha Smundak
parent
c42ef965a0
commit
29fdcad56c
9 changed files with 850 additions and 167 deletions
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@ -130,7 +130,7 @@ func ExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {
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return hackyExpressionsAreSame(a, b)
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}
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// TODO(jeffrygaston) once positions are removed from Expression stucts,
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// TODO(jeffrygaston) once positions are removed from Expression structs,
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// remove this function and have callers use reflect.DeepEqual(a, b)
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func hackyExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {
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if a.Type() != b.Type() {
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@ -549,10 +549,6 @@ func (p *parser) parseListValue() *List {
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var elements []Expression
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for p.tok != ']' {
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element := p.parseExpression()
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if p.eval && element.Type() != StringType {
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p.errorf("Expected string in list, found %s", element.Type().String())
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return nil
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}
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elements = append(elements, element)
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if p.tok != ',' {
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@ -193,6 +193,158 @@ var validParseTestCases = []struct {
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nil,
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},
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{
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`
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foo {
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list_of_maps: [
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{
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var: true,
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name: "a",
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},
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{
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var: false,
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name: "b",
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},
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],
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}
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`,
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[]Definition{
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&Module{
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Type: "foo",
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TypePos: mkpos(3, 2, 3),
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Map: Map{
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LBracePos: mkpos(7, 2, 7),
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RBracePos: mkpos(127, 13, 3),
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Properties: []*Property{
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{
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Name: "list_of_maps",
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NamePos: mkpos(12, 3, 4),
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ColonPos: mkpos(24, 3, 16),
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Value: &List{
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LBracePos: mkpos(26, 3, 18),
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RBracePos: mkpos(122, 12, 4),
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Values: []Expression{
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&Map{
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LBracePos: mkpos(32, 4, 5),
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RBracePos: mkpos(70, 7, 5),
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Properties: []*Property{
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{
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Name: "var",
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NamePos: mkpos(39, 5, 6),
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ColonPos: mkpos(42, 5, 9),
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Value: &Bool{
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LiteralPos: mkpos(44, 5, 11),
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Value: true,
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Token: "true",
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},
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},
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{
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Name: "name",
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NamePos: mkpos(55, 6, 6),
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ColonPos: mkpos(59, 6, 10),
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Value: &String{
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LiteralPos: mkpos(61, 6, 12),
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Value: "a",
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},
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},
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},
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},
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&Map{
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LBracePos: mkpos(77, 8, 5),
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RBracePos: mkpos(116, 11, 5),
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Properties: []*Property{
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{
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Name: "var",
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NamePos: mkpos(84, 9, 6),
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ColonPos: mkpos(87, 9, 9),
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Value: &Bool{
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LiteralPos: mkpos(89, 9, 11),
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Value: false,
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Token: "false",
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},
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},
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{
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Name: "name",
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NamePos: mkpos(101, 10, 6),
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ColonPos: mkpos(105, 10, 10),
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Value: &String{
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LiteralPos: mkpos(107, 10, 12),
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Value: "b",
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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nil,
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},
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{
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`
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foo {
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list_of_lists: [
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[ "a", "b" ],
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[ "c", "d" ]
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],
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}
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`,
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[]Definition{
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&Module{
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Type: "foo",
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TypePos: mkpos(3, 2, 3),
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Map: Map{
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LBracePos: mkpos(7, 2, 7),
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RBracePos: mkpos(72, 7, 3),
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Properties: []*Property{
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{
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Name: "list_of_lists",
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NamePos: mkpos(12, 3, 4),
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ColonPos: mkpos(25, 3, 17),
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Value: &List{
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LBracePos: mkpos(27, 3, 19),
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RBracePos: mkpos(67, 6, 4),
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Values: []Expression{
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&List{
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LBracePos: mkpos(33, 4, 5),
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RBracePos: mkpos(44, 4, 16),
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Values: []Expression{
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&String{
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LiteralPos: mkpos(35, 4, 7),
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Value: "a",
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},
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&String{
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LiteralPos: mkpos(40, 4, 12),
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Value: "b",
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},
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},
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},
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&List{
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LBracePos: mkpos(51, 5, 5),
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RBracePos: mkpos(62, 5, 16),
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Values: []Expression{
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&String{
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LiteralPos: mkpos(53, 5, 7),
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Value: "c",
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},
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&String{
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LiteralPos: mkpos(58, 5, 12),
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Value: "d",
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},
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},
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},
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},
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},
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},
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},
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},
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},
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},
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nil,
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},
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{`
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foo {
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stuff: {
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@ -1032,7 +1184,7 @@ func TestParseValidInput(t *testing.T) {
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for i := range file.Defs {
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if !reflect.DeepEqual(file.Defs[i], testCase.defs[i]) {
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t.Errorf("test case: %s", testCase.input)
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t.Errorf("incorrect defintion %d:", i)
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t.Errorf("incorrect definition %d:", i)
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t.Errorf(" expected: %s", testCase.defs[i])
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t.Errorf(" got: %s", file.Defs[i])
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}
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@ -358,6 +358,73 @@ test { // test
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// test
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}
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`,
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},
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{
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input: `
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// test
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stuff {
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namespace: "google",
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string_vars: [
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{
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var: "one",
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values: [ "one_a", "one_b",],
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},
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{
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var: "two",
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values: [ "two_a", "two_b", ],
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},
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],
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}`,
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output: `
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// test
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stuff {
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namespace: "google",
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string_vars: [
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{
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var: "one",
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values: [
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"one_a",
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"one_b",
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],
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},
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{
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var: "two",
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values: [
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"two_a",
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"two_b",
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],
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},
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],
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}
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`,
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},
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{
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input: `
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// test
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stuff {
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namespace: "google",
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list_of_lists: [
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[ "a", "b" ],
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[ "c", "d" ],
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],
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}
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`,
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output: `
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// test
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stuff {
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namespace: "google",
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list_of_lists: [
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[
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"a",
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"b",
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],
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[
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"c",
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"d",
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],
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],
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}
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`,
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},
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@ -33,6 +33,9 @@ func SortLists(file *File) {
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}
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func SortList(file *File, list *List) {
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if !isListOfPrimitives(list.Values) {
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return
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}
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for i := 0; i < len(list.Values); i++ {
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// Find a set of values on contiguous lines
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line := list.Values[i].Pos().Line
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@ -91,6 +94,9 @@ func sortListsInValue(value Expression, file *File) {
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}
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func sortSubList(values []Expression, nextPos scanner.Position, file *File) {
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if !isListOfPrimitives(values) {
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return
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}
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l := make(elemList, len(values))
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for i, v := range values {
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s, ok := v.(*String)
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@ -135,6 +141,9 @@ func sortSubList(values []Expression, nextPos scanner.Position, file *File) {
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}
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func subListIsSorted(values []Expression) bool {
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if !isListOfPrimitives(values) {
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return true
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}
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prev := ""
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for _, v := range values {
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s, ok := v.(*String)
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@ -184,3 +193,15 @@ func (l commentsByOffset) Less(i, j int) bool {
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func (l commentsByOffset) Swap(i, j int) {
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l[i], l[j] = l[j], l[i]
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}
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func isListOfPrimitives(values []Expression) bool {
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if len(values) == 0 {
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return true
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}
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switch values[0].Type() {
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case BoolType, StringType, Int64Type:
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return true
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default:
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return false
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}
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}
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@ -411,6 +411,63 @@ func appendPropertiesTestCases() []appendPropertyTestCase {
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},
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order: Replace,
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},
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{
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// Append slice of structs
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in1: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "foo"}, {F: "bar"},
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},
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},
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in2: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "baz"},
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},
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},
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out: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "foo"}, {F: "bar"}, {F: "baz"},
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},
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},
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order: Append,
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},
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{
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// Prepend slice of structs
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in1: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "foo"}, {F: "bar"},
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},
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},
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in2: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "baz"},
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},
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},
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out: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "baz"}, {F: "foo"}, {F: "bar"},
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},
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},
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order: Prepend,
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},
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{
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// Replace slice of structs
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in1: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "foo"}, {F: "bar"},
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},
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},
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in2: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "baz"},
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},
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},
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out: &struct{ S []struct{ F string } }{
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S: []struct{ F string }{
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{F: "baz"},
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},
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},
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order: Replace,
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},
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{
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// Append pointer
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in1: &struct{ S *struct{ S string } }{
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|
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@ -121,3 +121,7 @@ func isStruct(t reflect.Type) bool {
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func isStructPtr(t reflect.Type) bool {
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return t.Kind() == reflect.Ptr && t.Elem().Kind() == reflect.Struct
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}
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func isSlice(t reflect.Type) bool {
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return t.Kind() == reflect.Slice
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}
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@ -17,6 +17,9 @@ package proptools
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import (
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"fmt"
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"reflect"
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"sort"
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"strconv"
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"strings"
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"text/scanner"
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"github.com/google/blueprint/parser"
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@ -33,103 +36,153 @@ func (e *UnpackError) Error() string {
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return fmt.Sprintf("%s: %s", e.Pos, e.Err)
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}
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// packedProperty helps to track properties usage (`used` will be true)
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type packedProperty struct {
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property *parser.Property
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unpacked bool
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used bool
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}
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func UnpackProperties(propertyDefs []*parser.Property,
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propertiesStructs ...interface{}) (map[string]*parser.Property, []error) {
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// unpackContext keeps compound names and their values in a map. It is initialized from
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// parsed properties.
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type unpackContext struct {
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propertyMap map[string]*packedProperty
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errs []error
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}
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propertyMap := make(map[string]*packedProperty)
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errs := buildPropertyMap("", propertyDefs, propertyMap)
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if len(errs) > 0 {
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return nil, errs
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// UnpackProperties populates the list of runtime values ("property structs") from the parsed properties.
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// If a property a.b.c has a value, a field with the matching name in each runtime value is initialized
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// from it. See PropertyNameForField for field and property name matching.
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// For instance, if the input contains
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// { foo: "abc", bar: {x: 1},}
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// and a runtime value being has been declared as
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// var v struct { Foo string; Bar int }
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// then v.Foo will be set to "abc" and v.Bar will be set to 1
|
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// (cf. unpack_test.go for further examples)
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//
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// The type of a receiving field has to match the property type, i.e., a bool/int/string field
|
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// can be set from a property with bool/int/string value, a struct can be set from a map (only the
|
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// matching fields are set), and an slice can be set from a list.
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// If a field of a runtime value has been already set prior to the UnpackProperties, the new value
|
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// is appended to it (see somewhat inappropriately named ExtendBasicType).
|
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// The same property can initialize fields in multiple runtime values. It is an error if any property
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// value was not used to initialize at least one field.
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func UnpackProperties(properties []*parser.Property, objects ...interface{}) (map[string]*parser.Property, []error) {
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var unpackContext unpackContext
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unpackContext.propertyMap = make(map[string]*packedProperty)
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if !unpackContext.buildPropertyMap("", properties) {
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return nil, unpackContext.errs
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}
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|
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for _, properties := range propertiesStructs {
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propertiesValue := reflect.ValueOf(properties)
|
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if !isStructPtr(propertiesValue.Type()) {
|
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for _, obj := range objects {
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valueObject := reflect.ValueOf(obj)
|
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if !isStructPtr(valueObject.Type()) {
|
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panic(fmt.Errorf("properties must be *struct, got %s",
|
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propertiesValue.Type()))
|
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valueObject.Type()))
|
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}
|
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propertiesValue = propertiesValue.Elem()
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|
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newErrs := unpackStructValue("", propertiesValue, propertyMap)
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errs = append(errs, newErrs...)
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|
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if len(errs) >= maxUnpackErrors {
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return nil, errs
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unpackContext.unpackToStruct("", valueObject.Elem())
|
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if len(unpackContext.errs) >= maxUnpackErrors {
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return nil, unpackContext.errs
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}
|
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}
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// Report any properties that didn't have corresponding struct fields as
|
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// errors.
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// Gather property map, and collect any unused properties.
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// Avoid reporting subproperties of unused properties.
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result := make(map[string]*parser.Property)
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for name, packedProperty := range propertyMap {
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result[name] = packedProperty.property
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if !packedProperty.unpacked {
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err := &UnpackError{
|
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Err: fmt.Errorf("unrecognized property %q", name),
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Pos: packedProperty.property.ColonPos,
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}
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errs = append(errs, err)
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var unusedNames []string
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for name, v := range unpackContext.propertyMap {
|
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if v.used {
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result[name] = v.property
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} else {
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unusedNames = append(unusedNames, name)
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}
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}
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|
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if len(errs) > 0 {
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return nil, errs
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if len(unusedNames) == 0 && len(unpackContext.errs) == 0 {
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return result, nil
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}
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|
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return result, nil
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return nil, unpackContext.reportUnusedNames(unusedNames)
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}
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func buildPropertyMap(namePrefix string, propertyDefs []*parser.Property,
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propertyMap map[string]*packedProperty) (errs []error) {
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|
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for _, propertyDef := range propertyDefs {
|
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name := namePrefix + propertyDef.Name
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if first, present := propertyMap[name]; present {
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if first.property == propertyDef {
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// We've already added this property.
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func (ctx *unpackContext) reportUnusedNames(unusedNames []string) []error {
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sort.Strings(unusedNames)
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var lastReported string
|
||||
for _, name := range unusedNames {
|
||||
// if 'foo' has been reported, ignore 'foo\..*' and 'foo\[.*'
|
||||
if lastReported != "" {
|
||||
trimmed := strings.TrimPrefix(name, lastReported)
|
||||
if trimmed != name && (trimmed[0] == '.' || trimmed[0] == '[') {
|
||||
continue
|
||||
}
|
||||
errs = append(errs, &UnpackError{
|
||||
Err: fmt.Errorf("property %q already defined", name),
|
||||
Pos: propertyDef.ColonPos,
|
||||
})
|
||||
errs = append(errs, &UnpackError{
|
||||
Err: fmt.Errorf("<-- previous definition here"),
|
||||
Pos: first.property.ColonPos,
|
||||
})
|
||||
if len(errs) >= maxUnpackErrors {
|
||||
return errs
|
||||
}
|
||||
ctx.errs = append(ctx.errs, &UnpackError{
|
||||
fmt.Errorf("unrecognized property %q", name),
|
||||
ctx.propertyMap[name].property.ColonPos})
|
||||
lastReported = name
|
||||
}
|
||||
return ctx.errs
|
||||
}
|
||||
|
||||
func (ctx *unpackContext) buildPropertyMap(prefix string, properties []*parser.Property) bool {
|
||||
nOldErrors := len(ctx.errs)
|
||||
for _, property := range properties {
|
||||
name := fieldPath(prefix, property.Name)
|
||||
if first, present := ctx.propertyMap[name]; present {
|
||||
ctx.addError(
|
||||
&UnpackError{fmt.Errorf("property %q already defined", name), property.ColonPos})
|
||||
if ctx.addError(
|
||||
&UnpackError{fmt.Errorf("<-- previous definition here"), first.property.ColonPos}) {
|
||||
return false
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
propertyMap[name] = &packedProperty{
|
||||
property: propertyDef,
|
||||
unpacked: false,
|
||||
ctx.propertyMap[name] = &packedProperty{property, false}
|
||||
if structProperty, ok := property.Value.(*parser.Map); ok {
|
||||
ctx.buildPropertyMap(name, structProperty.Properties)
|
||||
}
|
||||
|
||||
// We intentionally do not rescursively add MapValue properties to the
|
||||
// property map here. Instead we add them when we encounter a struct
|
||||
// into which they can be unpacked. We do this so that if we never
|
||||
// encounter such a struct then the "unrecognized property" error will
|
||||
// be reported only once for the map property and not for each of its
|
||||
// sub-properties.
|
||||
// If it is a list, unroll it unless its elements are of primitive type
|
||||
// (no further mapping will be needed in that case, so we avoid cluttering
|
||||
// the map).
|
||||
listExpr, ok := property.Value.Eval().(*parser.List)
|
||||
if !ok || len(listExpr.Values) == 0 {
|
||||
continue
|
||||
}
|
||||
if t := listExpr.Values[0].Eval().Type(); t == parser.StringType || t == parser.Int64Type || t == parser.BoolType {
|
||||
continue
|
||||
}
|
||||
|
||||
itemProperties := make([]*parser.Property, len(listExpr.Values), len(listExpr.Values))
|
||||
for i, expr := range listExpr.Values {
|
||||
itemProperties[i] = &parser.Property{
|
||||
Name: property.Name + "[" + strconv.Itoa(i) + "]",
|
||||
NamePos: property.NamePos,
|
||||
ColonPos: property.ColonPos,
|
||||
Value: expr,
|
||||
}
|
||||
}
|
||||
if !ctx.buildPropertyMap(prefix, itemProperties) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
return len(ctx.errs) == nOldErrors
|
||||
}
|
||||
|
||||
func unpackStructValue(namePrefix string, structValue reflect.Value,
|
||||
propertyMap map[string]*packedProperty) []error {
|
||||
func fieldPath(prefix, fieldName string) string {
|
||||
if prefix == "" {
|
||||
return fieldName
|
||||
}
|
||||
return prefix + "." + fieldName
|
||||
}
|
||||
|
||||
func (ctx *unpackContext) addError(e error) bool {
|
||||
ctx.errs = append(ctx.errs, e)
|
||||
return len(ctx.errs) < maxUnpackErrors
|
||||
}
|
||||
|
||||
func (ctx *unpackContext) unpackToStruct(namePrefix string, structValue reflect.Value) {
|
||||
structType := structValue.Type()
|
||||
|
||||
var errs []error
|
||||
for i := 0; i < structValue.NumField(); i++ {
|
||||
fieldValue := structValue.Field(i)
|
||||
field := structType.Field(i)
|
||||
|
|
@ -148,14 +201,14 @@ func unpackStructValue(namePrefix string, structValue reflect.Value,
|
|||
continue
|
||||
}
|
||||
|
||||
propertyName := namePrefix + PropertyNameForField(field.Name)
|
||||
propertyName := fieldPath(namePrefix, PropertyNameForField(field.Name))
|
||||
|
||||
if !fieldValue.CanSet() {
|
||||
panic(fmt.Errorf("field %s is not settable", propertyName))
|
||||
}
|
||||
|
||||
// Get the property value if it was specified.
|
||||
packedProperty, propertyIsSet := propertyMap[propertyName]
|
||||
packedProperty, propertyIsSet := ctx.propertyMap[propertyName]
|
||||
|
||||
origFieldValue := fieldValue
|
||||
|
||||
|
|
@ -164,15 +217,8 @@ func unpackStructValue(namePrefix string, structValue reflect.Value,
|
|||
// TODO(ccross): we don't validate types inside nil struct pointers
|
||||
// Move type validation to a function that runs on each factory once
|
||||
switch kind := fieldValue.Kind(); kind {
|
||||
case reflect.Bool, reflect.String, reflect.Struct:
|
||||
case reflect.Bool, reflect.String, reflect.Struct, reflect.Slice:
|
||||
// Do nothing
|
||||
case reflect.Slice:
|
||||
elemType := field.Type.Elem()
|
||||
if elemType.Kind() != reflect.String {
|
||||
if !HasTag(field, "blueprint", "mutated") {
|
||||
panic(fmt.Errorf("field %s is a non-string slice", propertyName))
|
||||
}
|
||||
}
|
||||
case reflect.Interface:
|
||||
if fieldValue.IsNil() {
|
||||
panic(fmt.Errorf("field %s contains a nil interface", propertyName))
|
||||
|
|
@ -210,8 +256,7 @@ func unpackStructValue(namePrefix string, structValue reflect.Value,
|
|||
}
|
||||
|
||||
if field.Anonymous && isStruct(fieldValue.Type()) {
|
||||
newErrs := unpackStructValue(namePrefix, fieldValue, propertyMap)
|
||||
errs = append(errs, newErrs...)
|
||||
ctx.unpackToStruct(namePrefix, fieldValue)
|
||||
continue
|
||||
}
|
||||
|
||||
|
|
@ -220,60 +265,125 @@ func unpackStructValue(namePrefix string, structValue reflect.Value,
|
|||
continue
|
||||
}
|
||||
|
||||
packedProperty.unpacked = true
|
||||
packedProperty.used = true
|
||||
property := packedProperty.property
|
||||
|
||||
if HasTag(field, "blueprint", "mutated") {
|
||||
errs = append(errs,
|
||||
if !ctx.addError(
|
||||
&UnpackError{
|
||||
Err: fmt.Errorf("mutated field %s cannot be set in a Blueprint file", propertyName),
|
||||
Pos: packedProperty.property.ColonPos,
|
||||
})
|
||||
if len(errs) >= maxUnpackErrors {
|
||||
return errs
|
||||
fmt.Errorf("mutated field %s cannot be set in a Blueprint file", propertyName),
|
||||
property.ColonPos,
|
||||
}) {
|
||||
return
|
||||
}
|
||||
continue
|
||||
}
|
||||
|
||||
var newErrs []error
|
||||
|
||||
if isStruct(fieldValue.Type()) {
|
||||
newErrs = unpackStruct(propertyName+".", fieldValue,
|
||||
packedProperty.property, propertyMap)
|
||||
|
||||
errs = append(errs, newErrs...)
|
||||
if len(errs) >= maxUnpackErrors {
|
||||
return errs
|
||||
ctx.unpackToStruct(propertyName, fieldValue)
|
||||
if len(ctx.errs) >= maxUnpackErrors {
|
||||
return
|
||||
}
|
||||
} else if isSlice(fieldValue.Type()) {
|
||||
if unpackedValue, ok := ctx.unpackToSlice(propertyName, property, fieldValue.Type()); ok {
|
||||
ExtendBasicType(fieldValue, unpackedValue, Append)
|
||||
}
|
||||
if len(ctx.errs) >= maxUnpackErrors {
|
||||
return
|
||||
}
|
||||
|
||||
continue
|
||||
}
|
||||
|
||||
// Handle basic types and pointers to basic types
|
||||
|
||||
propertyValue, err := propertyToValue(fieldValue.Type(), packedProperty.property)
|
||||
if err != nil {
|
||||
errs = append(errs, err)
|
||||
if len(errs) >= maxUnpackErrors {
|
||||
return errs
|
||||
} else {
|
||||
unpackedValue, err := propertyToValue(fieldValue.Type(), property)
|
||||
if err != nil && !ctx.addError(err) {
|
||||
return
|
||||
}
|
||||
ExtendBasicType(fieldValue, unpackedValue, Append)
|
||||
}
|
||||
|
||||
ExtendBasicType(fieldValue, propertyValue, Append)
|
||||
}
|
||||
|
||||
return errs
|
||||
}
|
||||
|
||||
func propertyToValue(typ reflect.Type, property *parser.Property) (reflect.Value, error) {
|
||||
var value reflect.Value
|
||||
|
||||
var ptr bool
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typ = typ.Elem()
|
||||
ptr = true
|
||||
// unpackSlice creates a value of a given slice type from the property which should be a list
|
||||
func (ctx *unpackContext) unpackToSlice(
|
||||
sliceName string, property *parser.Property, sliceType reflect.Type) (reflect.Value, bool) {
|
||||
propValueAsList, ok := property.Value.Eval().(*parser.List)
|
||||
if !ok {
|
||||
ctx.addError(fmt.Errorf("%s: can't assign %s value to list property %q",
|
||||
property.Value.Pos(), property.Value.Type(), property.Name))
|
||||
return reflect.MakeSlice(sliceType, 0, 0), false
|
||||
}
|
||||
exprs := propValueAsList.Values
|
||||
value := reflect.MakeSlice(sliceType, 0, len(exprs))
|
||||
if len(exprs) == 0 {
|
||||
return value, true
|
||||
}
|
||||
|
||||
switch kind := typ.Kind(); kind {
|
||||
// The function to construct an item value depends on the type of list elements.
|
||||
var getItemFunc func(*parser.Property, reflect.Type) (reflect.Value, bool)
|
||||
switch exprs[0].Type() {
|
||||
case parser.BoolType, parser.StringType, parser.Int64Type:
|
||||
getItemFunc = func(property *parser.Property, t reflect.Type) (reflect.Value, bool) {
|
||||
value, err := propertyToValue(t, property)
|
||||
if err != nil {
|
||||
ctx.addError(err)
|
||||
return value, false
|
||||
}
|
||||
return value, true
|
||||
}
|
||||
case parser.ListType:
|
||||
getItemFunc = func(property *parser.Property, t reflect.Type) (reflect.Value, bool) {
|
||||
return ctx.unpackToSlice(property.Name, property, t)
|
||||
}
|
||||
case parser.MapType:
|
||||
getItemFunc = func(property *parser.Property, t reflect.Type) (reflect.Value, bool) {
|
||||
itemValue := reflect.New(t).Elem()
|
||||
ctx.unpackToStruct(property.Name, itemValue)
|
||||
return itemValue, true
|
||||
}
|
||||
case parser.NotEvaluatedType:
|
||||
getItemFunc = func(property *parser.Property, t reflect.Type) (reflect.Value, bool) {
|
||||
return reflect.New(t), false
|
||||
}
|
||||
default:
|
||||
panic(fmt.Errorf("bizarre property expression type: %v", exprs[0].Type()))
|
||||
}
|
||||
|
||||
itemProperty := &parser.Property{NamePos: property.NamePos, ColonPos: property.ColonPos}
|
||||
elemType := sliceType.Elem()
|
||||
isPtr := elemType.Kind() == reflect.Ptr
|
||||
|
||||
for i, expr := range exprs {
|
||||
itemProperty.Name = sliceName + "[" + strconv.Itoa(i) + "]"
|
||||
itemProperty.Value = expr
|
||||
if packedProperty, ok := ctx.propertyMap[itemProperty.Name]; ok {
|
||||
packedProperty.used = true
|
||||
}
|
||||
if isPtr {
|
||||
if itemValue, ok := getItemFunc(itemProperty, elemType.Elem()); ok {
|
||||
ptrValue := reflect.New(itemValue.Type())
|
||||
ptrValue.Elem().Set(itemValue)
|
||||
value = reflect.Append(value, ptrValue)
|
||||
}
|
||||
} else {
|
||||
if itemValue, ok := getItemFunc(itemProperty, elemType); ok {
|
||||
value = reflect.Append(value, itemValue)
|
||||
}
|
||||
}
|
||||
}
|
||||
return value, true
|
||||
}
|
||||
|
||||
// propertyToValue creates a value of a given value type from the property.
|
||||
func propertyToValue(typ reflect.Type, property *parser.Property) (reflect.Value, error) {
|
||||
var value reflect.Value
|
||||
var baseType reflect.Type
|
||||
isPtr := typ.Kind() == reflect.Ptr
|
||||
if isPtr {
|
||||
baseType = typ.Elem()
|
||||
} else {
|
||||
baseType = typ
|
||||
}
|
||||
|
||||
switch kind := baseType.Kind(); kind {
|
||||
case reflect.Bool:
|
||||
b, ok := property.Value.Eval().(*parser.Bool)
|
||||
if !ok {
|
||||
|
|
@ -298,53 +408,16 @@ func propertyToValue(typ reflect.Type, property *parser.Property) (reflect.Value
|
|||
}
|
||||
value = reflect.ValueOf(s.Value)
|
||||
|
||||
case reflect.Slice:
|
||||
l, ok := property.Value.Eval().(*parser.List)
|
||||
if !ok {
|
||||
return value, fmt.Errorf("%s: can't assign %s value to list property %q",
|
||||
property.Value.Pos(), property.Value.Type(), property.Name)
|
||||
}
|
||||
|
||||
list := make([]string, len(l.Values))
|
||||
for i, value := range l.Values {
|
||||
s, ok := value.Eval().(*parser.String)
|
||||
if !ok {
|
||||
// The parser should not produce this.
|
||||
panic(fmt.Errorf("non-string value %q found in list", value))
|
||||
}
|
||||
list[i] = s.Value
|
||||
}
|
||||
|
||||
value = reflect.ValueOf(list)
|
||||
|
||||
default:
|
||||
panic(fmt.Errorf("unexpected kind %s", kind))
|
||||
return value, &UnpackError{
|
||||
fmt.Errorf("cannot assign %s value %s to %s property %s", property.Value.Type(), property.Value, kind, typ),
|
||||
property.NamePos}
|
||||
}
|
||||
|
||||
if ptr {
|
||||
if isPtr {
|
||||
ptrValue := reflect.New(value.Type())
|
||||
ptrValue.Elem().Set(value)
|
||||
value = ptrValue
|
||||
return ptrValue, nil
|
||||
}
|
||||
|
||||
return value, nil
|
||||
}
|
||||
|
||||
func unpackStruct(namePrefix string, structValue reflect.Value,
|
||||
property *parser.Property, propertyMap map[string]*packedProperty) []error {
|
||||
|
||||
m, ok := property.Value.Eval().(*parser.Map)
|
||||
if !ok {
|
||||
return []error{
|
||||
fmt.Errorf("%s: can't assign %s value to map property %q",
|
||||
property.Value.Pos(), property.Value.Type(), property.Name),
|
||||
}
|
||||
}
|
||||
|
||||
errs := buildPropertyMap(namePrefix, m.Properties, propertyMap)
|
||||
if len(errs) > 0 {
|
||||
return errs
|
||||
}
|
||||
|
||||
return unpackStructValue(namePrefix, structValue, propertyMap)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -17,8 +17,8 @@ package proptools
|
|||
import (
|
||||
"bytes"
|
||||
"reflect"
|
||||
|
||||
"testing"
|
||||
"text/scanner"
|
||||
|
||||
"github.com/google/blueprint/parser"
|
||||
)
|
||||
|
|
@ -218,6 +218,144 @@ var validUnpackTestCases = []struct {
|
|||
},
|
||||
},
|
||||
|
||||
// List of maps
|
||||
{
|
||||
input: `
|
||||
m {
|
||||
mapslist: [
|
||||
{
|
||||
foo: "abc",
|
||||
bar: true,
|
||||
},
|
||||
{
|
||||
foo: "def",
|
||||
bar: false,
|
||||
}
|
||||
],
|
||||
}
|
||||
`,
|
||||
output: []interface{}{
|
||||
&struct {
|
||||
Mapslist []struct {
|
||||
Foo string
|
||||
Bar bool
|
||||
}
|
||||
}{
|
||||
Mapslist: []struct {
|
||||
Foo string
|
||||
Bar bool
|
||||
}{
|
||||
{Foo: "abc", Bar: true},
|
||||
{Foo: "def", Bar: false},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
|
||||
// List of pointers to structs
|
||||
{
|
||||
input: `
|
||||
m {
|
||||
mapslist: [
|
||||
{
|
||||
foo: "abc",
|
||||
bar: true,
|
||||
},
|
||||
{
|
||||
foo: "def",
|
||||
bar: false,
|
||||
}
|
||||
],
|
||||
}
|
||||
`,
|
||||
output: []interface{}{
|
||||
&struct {
|
||||
Mapslist []*struct {
|
||||
Foo string
|
||||
Bar bool
|
||||
}
|
||||
}{
|
||||
Mapslist: []*struct {
|
||||
Foo string
|
||||
Bar bool
|
||||
}{
|
||||
{Foo: "abc", Bar: true},
|
||||
{Foo: "def", Bar: false},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
|
||||
// List of lists
|
||||
{
|
||||
input: `
|
||||
m {
|
||||
listoflists: [
|
||||
["abc",],
|
||||
["def",],
|
||||
],
|
||||
}
|
||||
`,
|
||||
output: []interface{}{
|
||||
&struct {
|
||||
Listoflists [][]string
|
||||
}{
|
||||
Listoflists: [][]string{
|
||||
[]string{"abc"},
|
||||
[]string{"def"},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
|
||||
// Multilevel
|
||||
{
|
||||
input: `
|
||||
m {
|
||||
name: "mymodule",
|
||||
flag: true,
|
||||
settings: ["foo1", "foo2", "foo3",],
|
||||
perarch: {
|
||||
arm: "32",
|
||||
arm64: "64",
|
||||
},
|
||||
configvars: [
|
||||
{ var: "var1", values: ["1.1", "1.2", ], },
|
||||
{ var: "var2", values: ["2.1", ], },
|
||||
],
|
||||
}
|
||||
`,
|
||||
output: []interface{}{
|
||||
&struct {
|
||||
Name string
|
||||
Flag bool
|
||||
Settings []string
|
||||
Perarch *struct {
|
||||
Arm string
|
||||
Arm64 string
|
||||
}
|
||||
Configvars []struct {
|
||||
Var string
|
||||
Values []string
|
||||
}
|
||||
}{
|
||||
Name: "mymodule",
|
||||
Flag: true,
|
||||
Settings: []string{"foo1", "foo2", "foo3"},
|
||||
Perarch: &struct {
|
||||
Arm string
|
||||
Arm64 string
|
||||
}{Arm: "32", Arm64: "64"},
|
||||
Configvars: []struct {
|
||||
Var string
|
||||
Values []string
|
||||
}{
|
||||
{Var: "var1", Values: []string{"1.1", "1.2"}},
|
||||
{Var: "var2", Values: []string{"2.1"}},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
// Anonymous struct
|
||||
{
|
||||
input: `
|
||||
|
|
@ -585,10 +723,185 @@ func TestUnpackProperties(t *testing.T) {
|
|||
}
|
||||
}
|
||||
|
||||
func mkpos(offset, line, column int) scanner.Position {
|
||||
return scanner.Position{
|
||||
Offset: offset,
|
||||
Line: line,
|
||||
Column: column,
|
||||
func BenchmarkUnpackProperties(b *testing.B) {
|
||||
run := func(b *testing.B, props []interface{}, input string) {
|
||||
b.ReportAllocs()
|
||||
b.StopTimer()
|
||||
r := bytes.NewBufferString(input)
|
||||
file, errs := parser.ParseAndEval("", r, parser.NewScope(nil))
|
||||
if len(errs) != 0 {
|
||||
b.Errorf("test case: %s", input)
|
||||
b.Errorf("unexpected parse errors:")
|
||||
for _, err := range errs {
|
||||
b.Errorf(" %s", err)
|
||||
}
|
||||
b.FailNow()
|
||||
}
|
||||
|
||||
for i := 0; i < b.N; i++ {
|
||||
for _, def := range file.Defs {
|
||||
module, ok := def.(*parser.Module)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
|
||||
var output []interface{}
|
||||
for _, p := range props {
|
||||
output = append(output, CloneProperties(reflect.ValueOf(p)).Interface())
|
||||
}
|
||||
|
||||
b.StartTimer()
|
||||
_, errs = UnpackProperties(module.Properties, output...)
|
||||
b.StopTimer()
|
||||
if len(errs) > 0 {
|
||||
b.Errorf("unexpected unpack errors:")
|
||||
for _, err := range errs {
|
||||
b.Errorf(" %s", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
b.Run("basic", func(b *testing.B) {
|
||||
props := []interface{}{
|
||||
&struct {
|
||||
Nested struct {
|
||||
S string
|
||||
}
|
||||
}{},
|
||||
}
|
||||
bp := `
|
||||
m {
|
||||
nested: {
|
||||
s: "abc",
|
||||
},
|
||||
}
|
||||
`
|
||||
run(b, props, bp)
|
||||
})
|
||||
|
||||
b.Run("interface", func(b *testing.B) {
|
||||
props := []interface{}{
|
||||
&struct {
|
||||
Nested interface{}
|
||||
}{
|
||||
Nested: (*struct {
|
||||
S string
|
||||
})(nil),
|
||||
},
|
||||
}
|
||||
bp := `
|
||||
m {
|
||||
nested: {
|
||||
s: "abc",
|
||||
},
|
||||
}
|
||||
`
|
||||
run(b, props, bp)
|
||||
})
|
||||
|
||||
b.Run("many", func(b *testing.B) {
|
||||
props := []interface{}{
|
||||
&struct {
|
||||
A *string
|
||||
B *string
|
||||
C *string
|
||||
D *string
|
||||
E *string
|
||||
F *string
|
||||
G *string
|
||||
H *string
|
||||
I *string
|
||||
J *string
|
||||
}{},
|
||||
}
|
||||
bp := `
|
||||
m {
|
||||
a: "a",
|
||||
b: "b",
|
||||
c: "c",
|
||||
d: "d",
|
||||
e: "e",
|
||||
f: "f",
|
||||
g: "g",
|
||||
h: "h",
|
||||
i: "i",
|
||||
j: "j",
|
||||
}
|
||||
`
|
||||
run(b, props, bp)
|
||||
})
|
||||
|
||||
b.Run("deep", func(b *testing.B) {
|
||||
props := []interface{}{
|
||||
&struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
Nested struct {
|
||||
S string
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}{},
|
||||
}
|
||||
bp := `
|
||||
m {
|
||||
nested: { nested: { nested: { nested: { nested: {
|
||||
nested: { nested: { nested: { nested: { nested: {
|
||||
s: "abc",
|
||||
}, }, }, }, },
|
||||
}, }, }, }, },
|
||||
}
|
||||
`
|
||||
run(b, props, bp)
|
||||
})
|
||||
|
||||
b.Run("mix", func(b *testing.B) {
|
||||
props := []interface{}{
|
||||
&struct {
|
||||
Name string
|
||||
Flag bool
|
||||
Settings []string
|
||||
Perarch *struct {
|
||||
Arm string
|
||||
Arm64 string
|
||||
}
|
||||
Configvars []struct {
|
||||
Name string
|
||||
Values []string
|
||||
}
|
||||
}{},
|
||||
}
|
||||
bp := `
|
||||
m {
|
||||
name: "mymodule",
|
||||
flag: true,
|
||||
settings: ["foo1", "foo2", "foo3",],
|
||||
perarch: {
|
||||
arm: "32",
|
||||
arm64: "64",
|
||||
},
|
||||
configvars: [
|
||||
{ name: "var1", values: ["var1:1", "var1:2", ], },
|
||||
{ name: "var2", values: ["var2:1", "var2:2", ], },
|
||||
],
|
||||
}
|
||||
`
|
||||
run(b, props, bp)
|
||||
})
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue