82 lines
1.7 KiB
Go
82 lines
1.7 KiB
Go
package compiler
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import (
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"go/ast"
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"go/types"
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"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
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)
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func (c *codegen) typeAndValueOf(e ast.Expr) types.TypeAndValue {
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return c.typeInfo.Types[e]
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}
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func (c *codegen) typeOf(e ast.Expr) types.Type {
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return c.typeAndValueOf(e).Type
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}
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func isBasicTypeOfKind(typ types.Type, ks ...types.BasicKind) bool {
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if t, ok := typ.Underlying().(*types.Basic); ok {
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k := t.Kind()
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for i := range ks {
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if k == ks[i] {
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return true
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}
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}
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}
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return false
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}
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func isByte(typ types.Type) bool {
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return isBasicTypeOfKind(typ, types.Uint8, types.Int8)
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}
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func isNumber(typ types.Type) bool {
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t, ok := typ.Underlying().(*types.Basic)
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return ok && t.Info()&types.IsNumeric != 0
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}
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func isString(typ types.Type) bool {
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return isBasicTypeOfKind(typ, types.String)
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}
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func isCompoundSlice(typ types.Type) bool {
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t, ok := typ.Underlying().(*types.Slice)
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return ok && !isByte(t.Elem())
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}
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func isByteSlice(typ types.Type) bool {
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t, ok := typ.Underlying().(*types.Slice)
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return ok && isByte(t.Elem())
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}
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func toNeoType(typ types.Type) stackitem.Type {
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if typ == nil {
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return stackitem.AnyT
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}
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switch t := typ.Underlying().(type) {
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case *types.Basic:
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info := t.Info()
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switch {
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case info&types.IsInteger != 0:
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return stackitem.IntegerT
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case info&types.IsBoolean != 0:
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return stackitem.BooleanT
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case info&types.IsString != 0:
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return stackitem.ByteArrayT
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default:
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return stackitem.AnyT
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}
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case *types.Map:
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return stackitem.MapT
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case *types.Struct:
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return stackitem.StructT
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case *types.Slice:
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if isByte(t.Elem()) {
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return stackitem.BufferT
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}
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return stackitem.ArrayT
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default:
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return stackitem.AnyT
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}
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}
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