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integer.go
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integer.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() {
RegisterEvalPkgMacro("integer", "Equal", new(EvalIntegerEqualMacro))
//
RegisterEvalPkgMacro("integer", "Less", new(EvalIntegerLessMacro))
RegisterEvalPkgMacro("integer", "Prod", new(EvalIntegerProdMacro))
RegisterEvalPkgMacro("integer", "Ratio", new(EvalIntegerRatioMacro))
RegisterEvalPkgMacro("integer", "Sum", new(EvalIntegerSumMacro))
RegisterEvalPkgMacro("integer", "Moduli", new(EvalIntegerModuliMacro))
RegisterEvalPkgMacro("integer", "Negative", new(EvalIntegerNegativeMacro))
//
RegisterEvalMacro("Less", new(EvalIntegerLessMacro))
RegisterEvalMacro("Prod", new(EvalIntegerProdMacro))
RegisterEvalMacro("Ratio", new(EvalIntegerRatioMacro))
RegisterEvalMacro("Sum", new(EvalIntegerSumMacro))
RegisterEvalMacro("Moduli", new(EvalIntegerModuliMacro))
RegisterEvalMacro("Negative", new(EvalIntegerNegativeMacro))
}
type EvalIntegerEqualMacro struct{}
func (m EvalIntegerEqualMacro) MacroID() string { return m.Help() }
func (m EvalIntegerEqualMacro) Label() string { return "equal" }
func (m EvalIntegerEqualMacro) MacroSheathString() *string { return PtrString("Equal") }
func (m EvalIntegerEqualMacro) Help() string { return "Equal" }
func (m EvalIntegerEqualMacro) Doc() string {
return `Equal returns true if the sequence of integer arguments passed to it is empty,
or all integers are equal.`
}
func (m EvalIntegerEqualMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, _, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer equal")
} else {
for i := 1; i < len(symbols); i++ {
if !symbols[i-1].Equal(span, symbols[i]) {
return BasicFalse, nil, nil
}
}
return BasicTrue, nil, nil
}
}
type EvalIntegerLessMacro struct{}
func (m EvalIntegerLessMacro) MacroID() string { return m.Help() }
func (m EvalIntegerLessMacro) Label() string { return "less" }
func (m EvalIntegerLessMacro) MacroSheathString() *string { return PtrString("Less") }
func (m EvalIntegerLessMacro) Help() string { return "Less" }
func (m EvalIntegerLessMacro) Doc() string {
return `Less returns true if the non-empty sequence of integer arguments passed to it is strictly increasing.`
}
func (m EvalIntegerLessMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer less")
} else if signed { // signed
for i := 1; i < len(symbols); i++ {
if SignedMaximal(symbols[i-1]) >= SignedMaximal(symbols[i]) {
return BasicFalse, nil, nil
}
}
return BasicTrue, nil, nil
} else { // unsigned
for i := 1; i < len(symbols); i++ {
if UnsignedMaximal(symbols[i-1]) >= UnsignedMaximal(symbols[i]) {
return BasicFalse, nil, nil
}
}
return BasicTrue, nil, nil
}
}
type EvalIntegerProdMacro struct{}
func (m EvalIntegerProdMacro) MacroID() string { return m.Help() }
func (m EvalIntegerProdMacro) Label() string { return "product" }
func (m EvalIntegerProdMacro) MacroSheathString() *string { return PtrString("Prod") }
func (m EvalIntegerProdMacro) Help() string { return "Prod" }
func (m EvalIntegerProdMacro) Doc() string {
return `Prod returns the product of the integers passed to it.`
}
func (m EvalIntegerProdMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer product")
} else if signed {
prod := SignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
prod *= SignedMaximal(symbols[i])
}
return makeAndConvert(span, prod, symbols[0].Type().(BasicType))
} else { // unsigned
prod := UnsignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
prod *= UnsignedMaximal(symbols[i])
}
return makeAndConvert(span, prod, symbols[0].Type().(BasicType))
}
}
type EvalIntegerRatioMacro struct{}
func (m EvalIntegerRatioMacro) MacroID() string { return m.Help() }
func (m EvalIntegerRatioMacro) Label() string { return "ratio" }
func (m EvalIntegerRatioMacro) MacroSheathString() *string { return PtrString("Ratio") }
func (m EvalIntegerRatioMacro) Help() string { return "Ratio" }
func (m EvalIntegerRatioMacro) Doc() string {
return `Ratio returns the ratio of the integers passed to it.`
}
func (m EvalIntegerRatioMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer ratio")
} else if signed {
ratio := SignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
ratio /= SignedMaximal(symbols[i])
}
return makeAndConvert(span, ratio, symbols[0].Type().(BasicType))
} else { // unsigned
ratio := UnsignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
ratio /= UnsignedMaximal(symbols[i])
}
return makeAndConvert(span, ratio, symbols[0].Type().(BasicType))
}
}
type EvalIntegerSumMacro struct{}
func (m EvalIntegerSumMacro) MacroID() string { return m.Help() }
func (m EvalIntegerSumMacro) Label() string { return "sum" }
func (m EvalIntegerSumMacro) MacroSheathString() *string { return PtrString("Sum") }
func (m EvalIntegerSumMacro) Help() string { return "Sum" }
func (m EvalIntegerSumMacro) Doc() string {
return `Sum returns the sum of the integers passed to it.`
}
func (m EvalIntegerSumMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer sum")
} else if signed {
sum := SignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
sum += SignedMaximal(symbols[i])
}
return makeAndConvert(span, sum, symbols[0].Type().(BasicType))
} else { // unsigned
sum := UnsignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
sum += UnsignedMaximal(symbols[i])
}
return makeAndConvert(span, sum, symbols[0].Type().(BasicType))
}
}
type EvalIntegerModuliMacro struct{}
func (m EvalIntegerModuliMacro) MacroID() string { return m.Help() }
func (m EvalIntegerModuliMacro) Label() string { return "moduli" }
func (m EvalIntegerModuliMacro) MacroSheathString() *string { return PtrString("Moduli") }
func (m EvalIntegerModuliMacro) Help() string { return "Moduli" }
func (m EvalIntegerModuliMacro) Doc() string {
return `Moduli(n1, n2) returns n1 modulus n2.`
}
func (m EvalIntegerModuliMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer moduli")
} else if signed {
moduli := SignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
moduli %= SignedMaximal(symbols[i])
}
return makeAndConvert(span, moduli, symbols[0].Type().(BasicType))
} else { // unsigned
moduli := UnsignedMaximal(symbols[0])
for i := 1; i < len(symbols); i++ {
moduli %= UnsignedMaximal(symbols[i])
}
return makeAndConvert(span, moduli, symbols[0].Type().(BasicType))
}
}
type EvalIntegerNegativeMacro struct{}
func (m EvalIntegerNegativeMacro) MacroID() string { return m.Help() }
func (m EvalIntegerNegativeMacro) Label() string { return "negative" }
func (m EvalIntegerNegativeMacro) MacroSheathString() *string { return PtrString("Negative") }
func (m EvalIntegerNegativeMacro) Help() string { return "Negative" }
func (m EvalIntegerNegativeMacro) Doc() string {
return `Negative(n) returns -n.`
}
func (m EvalIntegerNegativeMacro) Invoke(span *Span, arg Arg) (returns Return, effect Effect, err error) {
if symbols, signed, err := ExtractMonadicNonEmptyIntegerSeries(span, arg.(*StructSymbol)); err != nil {
return nil, nil, span.Errorf(err, "integer negative")
} else {
if len(symbols) != 1 {
return nil, nil, span.Errorf(err, "integer negative expects a single integer")
} else {
if signed { // signed
negated := -SignedMaximal(symbols[0])
return makeAndConvert(span, negated, symbols[0].Type().(BasicType))
} else { // unsigned
negated := -UnsignedMaximal(symbols[0])
return makeAndConvert(span, negated, symbols[0].Type().(BasicType))
}
}
}
}
func makeAndConvert(span *Span, v interface{}, to BasicType) (returns Return, effect Effect, err error) {
if r, err := MakeBasicSymbol(span, v).ConvertTo(span, to); err != nil {
panic(err)
} else {
return r, nil, nil
}
}