mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-30 09:33:36 +00:00
904b2136fc
Emit CONVERT for converting between different types. NeoVM behavior is different from that of Go (e.g. assertions of `int` and `uint32` are equivalent).
77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
package compiler
|
|
|
|
import (
|
|
"go/ast"
|
|
"go/types"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
|
|
)
|
|
|
|
func (c *codegen) typeAndValueOf(e ast.Expr) types.TypeAndValue {
|
|
return c.typeInfo.Types[e]
|
|
}
|
|
|
|
func (c *codegen) typeOf(e ast.Expr) types.Type {
|
|
return c.typeAndValueOf(e).Type
|
|
}
|
|
|
|
func isBasicTypeOfKind(typ types.Type, ks ...types.BasicKind) bool {
|
|
if t, ok := typ.Underlying().(*types.Basic); ok {
|
|
k := t.Kind()
|
|
for i := range ks {
|
|
if k == ks[i] {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func isByte(typ types.Type) bool {
|
|
return isBasicTypeOfKind(typ, types.Uint8, types.Int8)
|
|
}
|
|
|
|
func isString(typ types.Type) bool {
|
|
return isBasicTypeOfKind(typ, types.String)
|
|
}
|
|
|
|
func isCompoundSlice(typ types.Type) bool {
|
|
t, ok := typ.Underlying().(*types.Slice)
|
|
return ok && !isByte(t.Elem())
|
|
}
|
|
|
|
func isByteSlice(typ types.Type) bool {
|
|
t, ok := typ.Underlying().(*types.Slice)
|
|
return ok && isByte(t.Elem())
|
|
}
|
|
|
|
func toNeoType(typ types.Type) stackitem.Type {
|
|
if typ == nil {
|
|
return stackitem.AnyT
|
|
}
|
|
switch t := typ.Underlying().(type) {
|
|
case *types.Basic:
|
|
info := t.Info()
|
|
switch {
|
|
case info&types.IsInteger != 0:
|
|
return stackitem.IntegerT
|
|
case info&types.IsBoolean != 0:
|
|
return stackitem.BooleanT
|
|
case info&types.IsString != 0:
|
|
return stackitem.ByteArrayT
|
|
default:
|
|
return stackitem.AnyT
|
|
}
|
|
case *types.Map:
|
|
return stackitem.MapT
|
|
case *types.Struct:
|
|
return stackitem.StructT
|
|
case *types.Slice:
|
|
if isByte(t.Elem()) {
|
|
return stackitem.BufferT
|
|
}
|
|
return stackitem.ArrayT
|
|
default:
|
|
return stackitem.AnyT
|
|
}
|
|
}
|