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compiler: support nested struct reading

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This commit is contained in:
Evgenii Stratonikov 2020-05-20 11:05:01 +03:00
parent c751472852
commit 1e40f9dac0
2 changed files with 20 additions and 9 deletions
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15
pkg/compiler/codegen.go
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@ -753,17 +753,14 @@ func (c *codegen) Visit(node ast.Node) ast.Visitor {
return nil
case *ast.SelectorExpr:
switch t := n.X.(type) {
case *ast.Ident:
if strct, ok := c.typeOf(t).Underlying().(*types.Struct); ok {
c.emitLoadVar(t.Name) // load the struct
i := indexOfStruct(strct, n.Sel.Name)
c.emitLoadField(i) // load the field
}
default:
c.prog.Err = fmt.Errorf("nested selectors not supported yet")
strct, ok := c.typeOf(n.X).Underlying().(*types.Struct)
if !ok {
c.prog.Err = fmt.Errorf("selectors are supported only on structs")
return nil
}
ast.Walk(c, n.X) // load the struct
i := indexOfStruct(strct, n.Sel.Name)
c.emitLoadField(i) // load the field
return nil
case *ast.UnaryExpr: