/
convert.go
216 lines (173 loc) · 8.21 KB
/
convert.go
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package macros
import (
. "github.com/kocircuit/kocircuit/lang/circuit/eval"
. "github.com/kocircuit/kocircuit/lang/circuit/model"
. "github.com/kocircuit/kocircuit/lang/go/eval"
. "github.com/kocircuit/kocircuit/lang/go/eval/symbol"
. "github.com/kocircuit/kocircuit/lang/go/kit/util"
)
func init() {
RegisterEvalMacro("String", new(EvalStringMacro))
RegisterEvalMacro("Bool", new(EvalBoolMacro))
RegisterEvalMacro("Int8", new(EvalInt8Macro))
RegisterEvalMacro("Int16", new(EvalInt16Macro))
RegisterEvalMacro("Int32", new(EvalInt32Macro))
RegisterEvalMacro("Int64", new(EvalInt64Macro))
RegisterEvalMacro("Uint8", new(EvalUint8Macro))
RegisterEvalMacro("Uint16", new(EvalUint16Macro))
RegisterEvalMacro("Uint32", new(EvalUint32Macro))
RegisterEvalMacro("Uint64", new(EvalUint64Macro))
RegisterEvalMacro("Float32", new(EvalFloat32Macro))
RegisterEvalMacro("Float64", new(EvalFloat64Macro))
}
type EvalStringMacro struct{}
func (m EvalStringMacro) MacroID() string { return m.Help() }
func (m EvalStringMacro) Label() string { return "string" }
func (m EvalStringMacro) MacroSheathString() *string { return PtrString("String") }
func (m EvalStringMacro) Help() string { return "String" }
func (m EvalStringMacro) Doc() string {
return `String converts its argument to a string.`
}
func (EvalStringMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicString)
}
type EvalBoolMacro struct{}
func (m EvalBoolMacro) MacroID() string { return m.Help() }
func (m EvalBoolMacro) Label() string { return "bool" }
func (m EvalBoolMacro) MacroSheathString() *string { return PtrString("Bool") }
func (m EvalBoolMacro) Help() string { return "Bool" }
func (m EvalBoolMacro) Doc() string {
return `Bool converts its argument to a boolean.`
}
func (EvalBoolMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicBool)
}
// signed integers
type EvalInt8Macro struct{}
func (m EvalInt8Macro) MacroID() string { return m.Help() }
func (m EvalInt8Macro) Label() string { return "int8" }
func (m EvalInt8Macro) MacroSheathString() *string { return PtrString("Int8") }
func (m EvalInt8Macro) Help() string { return "Int8" }
func (m EvalInt8Macro) Doc() string {
return `Int8 converts its argument an 8-bit signed integer.`
}
func (EvalInt8Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicInt8)
}
type EvalInt16Macro struct{}
func (m EvalInt16Macro) MacroID() string { return m.Help() }
func (m EvalInt16Macro) Label() string { return "int16" }
func (m EvalInt16Macro) MacroSheathString() *string { return PtrString("Int16") }
func (m EvalInt16Macro) Help() string { return "Int16" }
func (m EvalInt16Macro) Doc() string {
return `Int16 converts its argument a 16-bit signed integer.`
}
func (EvalInt16Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicInt16)
}
type EvalInt32Macro struct{}
func (m EvalInt32Macro) MacroID() string { return m.Help() }
func (m EvalInt32Macro) Label() string { return "int32" }
func (m EvalInt32Macro) MacroSheathString() *string { return PtrString("Int32") }
func (m EvalInt32Macro) Help() string { return "Int32" }
func (m EvalInt32Macro) Doc() string {
return `Int32 converts its argument a 32-bit signed integer.`
}
func (EvalInt32Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicInt32)
}
type EvalInt64Macro struct{}
func (m EvalInt64Macro) MacroID() string { return m.Help() }
func (m EvalInt64Macro) Label() string { return "int64" }
func (m EvalInt64Macro) MacroSheathString() *string { return PtrString("Int64") }
func (m EvalInt64Macro) Help() string { return "Int64" }
func (m EvalInt64Macro) Doc() string {
return `Int64 converts its argument a 64-bit signed integer.`
}
func (EvalInt64Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicInt64)
}
// unsigned integers
type EvalUint8Macro struct{}
func (m EvalUint8Macro) MacroID() string { return m.Help() }
func (m EvalUint8Macro) Label() string { return "uint8" }
func (m EvalUint8Macro) MacroSheathString() *string { return PtrString("Uint8") }
func (m EvalUint8Macro) Help() string { return "Uint8" }
func (m EvalUint8Macro) Doc() string {
return `Uint8 converts its argument to an 8-bit unsigned integer.`
}
func (EvalUint8Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicUint8)
}
type EvalUint16Macro struct{}
func (m EvalUint16Macro) MacroID() string { return m.Help() }
func (m EvalUint16Macro) Label() string { return "uint16" }
func (m EvalUint16Macro) MacroSheathString() *string { return PtrString("Uint16") }
func (m EvalUint16Macro) Help() string { return "Uint16" }
func (m EvalUint16Macro) Doc() string {
return `Uint16 converts its argument to a 16-bit unsigned integer.`
}
func (EvalUint16Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicUint16)
}
type EvalUint32Macro struct{}
func (m EvalUint32Macro) MacroID() string { return m.Help() }
func (m EvalUint32Macro) Label() string { return "uint32" }
func (m EvalUint32Macro) MacroSheathString() *string { return PtrString("Uint32") }
func (m EvalUint32Macro) Help() string { return "Uint32" }
func (m EvalUint32Macro) Doc() string {
return `Uint32 converts its argument to a 32-bit unsigned integer.`
}
func (EvalUint32Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicUint32)
}
type EvalUint64Macro struct{}
func (m EvalUint64Macro) MacroID() string { return m.Help() }
func (m EvalUint64Macro) Label() string { return "uint64" }
func (m EvalUint64Macro) MacroSheathString() *string { return PtrString("Uint64") }
func (m EvalUint64Macro) Help() string { return "Uint64" }
func (m EvalUint64Macro) Doc() string {
return `Uint64 converts its argument to a 64-bit unsigned integer.`
}
func (EvalUint64Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicUint64)
}
// floating
type EvalFloat32Macro struct{}
func (m EvalFloat32Macro) MacroID() string { return m.Help() }
func (m EvalFloat32Macro) Label() string { return "float32" }
func (m EvalFloat32Macro) MacroSheathString() *string { return PtrString("Float32") }
func (m EvalFloat32Macro) Help() string { return "Float32" }
func (m EvalFloat32Macro) Doc() string {
return `Float32 converts its argument to a 32-bit floating-point number.`
}
func (EvalFloat32Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicFloat32)
}
type EvalFloat64Macro struct{}
func (m EvalFloat64Macro) MacroID() string { return m.Help() }
func (m EvalFloat64Macro) Label() string { return "float64" }
func (m EvalFloat64Macro) MacroSheathString() *string { return PtrString("Float64") }
func (m EvalFloat64Macro) Help() string { return "Float64" }
func (m EvalFloat64Macro) Doc() string {
return `Float64 converts its argument to a 64-bit floating-point number.`
}
func (EvalFloat64Macro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
return convert(span, arg, BasicFloat64)
}
// shared
func convert(span *Span, arg Arg, to BasicType) (returns Return, effect Effect, err error) {
if x := arg.(*StructSymbol).LinkField("value", true); x != nil {
if basic, ok := x.(BasicSymbol); ok {
if converted, err := basic.ConvertTo(span, to); err != nil {
return nil, nil, err
} else {
return converted, nil, nil
}
} else {
return nil, nil, span.Errorf(nil, "non-basic type %v is not convertible to %v", x, to)
}
} else {
return nil, nil, span.Errorf(nil, "%v needs an argument", to)
}
}