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import { OptionalFormat } from "./OptionalFormat.js";
import { InputStream } from "./InputStream.js";
import { OutputStream } from "./OutputStream.js";
import { TypeRegistry } from "./TypeRegistry.js";
import { Value } from "./Value.js";
const defineProperty = Object.defineProperty;
function defineBuiltinHelper(write, read, sz, format, min, max) {
const helper = class {
static write(os, v) {
return write.call(os, v);
}
static read(is) {
return read.call(is);
}
static writeOptional(os, tag, v) {
os.writeOptionalHelper(tag, format, write, v);
}
static readOptional(is, tag) {
return is.readOptionalHelper(tag, format, read);
}
static get minWireSize() {
return sz;
}
};
if (min !== undefined && max !== undefined) {
helper.validate = function (v) {
return v >= min && v <= max;
};
}
return helper;
}
const istr = InputStream.prototype;
const ostr = OutputStream.prototype;
//
// Constants to use in number type range checks.
//
const MIN_UINT8_VALUE = 0x0;
const MAX_UINT8_VALUE = 0xff;
const MIN_INT16_VALUE = -0x8000;
const MAX_INT16_VALUE = 0x7fff;
const MIN_INT32_VALUE = -0x80000000;
const MAX_INT32_VALUE = 0x7fffffff;
const MIN_FLOAT32_VALUE = -3.4028234664e38;
const MAX_FLOAT32_VALUE = 3.4028234664e38;
export const ByteHelper = defineBuiltinHelper(
ostr.writeByte,
istr.readByte,
1,
OptionalFormat.F1,
MIN_UINT8_VALUE,
MAX_UINT8_VALUE,
);
export const ShortHelper = defineBuiltinHelper(
ostr.writeShort,
istr.readShort,
2,
OptionalFormat.F2,
MIN_INT16_VALUE,
MAX_INT16_VALUE,
);
export const IntHelper = defineBuiltinHelper(
ostr.writeInt,
istr.readInt,
4,
OptionalFormat.F4,
MIN_INT32_VALUE,
MAX_INT32_VALUE,
);
export const FloatHelper = defineBuiltinHelper(
ostr.writeFloat,
istr.readFloat,
4,
OptionalFormat.F4,
MIN_FLOAT32_VALUE,
MAX_FLOAT32_VALUE,
);
FloatHelper.validate = function (v) {
return (
Number.isNaN(v) ||
v == Number.POSITIVE_INFINITY ||
v == Number.NEGATIVE_INFINITY ||
(v >= MIN_FLOAT32_VALUE && v <= MAX_FLOAT32_VALUE)
);
};
export const DoubleHelper = defineBuiltinHelper(
ostr.writeDouble,
istr.readDouble,
8,
OptionalFormat.F8,
-Number.MAX_VALUE,
Number.MAX_VALUE,
);
DoubleHelper.validate = function (v) {
return (
Number.isNaN(v) ||
v == Number.POSITIVE_INFINITY ||
v == Number.NEGATIVE_INFINITY ||
(v >= -Number.MAX_VALUE && v <= Number.MAX_VALUE)
);
};
export const BoolHelper = defineBuiltinHelper(ostr.writeBool, istr.readBool, 1, OptionalFormat.F1);
export const LongHelper = defineBuiltinHelper(ostr.writeLong, istr.readLong, 8, OptionalFormat.F8);
LongHelper.validate = function (v) {
return typeof v == "number" || (typeof v == "bigint" && BigInt.asIntN(64, v) === v);
};
export const StringHelper = defineBuiltinHelper(ostr.writeString, istr.readString, 1, OptionalFormat.VSize);
export const ObjectHelper = class {
static write(os, v) {
os.writeValue(v);
}
static read(is) {
let o;
is.readValue(v => {
o = v;
}, Value);
return o;
}
static get minWireSize() {
return 1;
}
};
export const StreamHelpers = {};
StreamHelpers.FSizeOptHelper = function () {
this.writeOptional = function (os, tag, v) {
if (v !== undefined && v !== null && os.writeOptional(tag, OptionalFormat.FSize)) {
const pos = os.startSize();
this.write(os, v);
os.endSize(pos);
}
};
this.readOptional = function (is, tag) {
let v;
if (is.readOptional(tag, OptionalFormat.FSize)) {
is.skip(4);
v = this.read(is);
}
return v;
};
};
StreamHelpers.VSizeOptHelper = function () {
this.writeOptional = function (os, tag, v) {
if (v !== undefined && v !== null && os.writeOptional(tag, OptionalFormat.VSize)) {
os.writeSize(this.minWireSize);
this.write(os, v);
}
};
this.readOptional = function (is, tag) {
let v;
if (is.readOptional(tag, OptionalFormat.VSize)) {
is.skipSize();
v = this.read(is);
}
return v;
};
};
StreamHelpers.VSizeContainerOptHelper = function (elementSize) {
this.writeOptional = function (os, tag, v) {
if (v !== undefined && v !== null && os.writeOptional(tag, OptionalFormat.VSize)) {
const sz = this.size(v);
os.writeSize(sz > 254 ? sz * elementSize + 5 : sz * elementSize + 1);
this.write(os, v);
}
};
this.readOptional = function (is, tag) {
let v;
if (is.readOptional(tag, OptionalFormat.VSize)) {
is.skipSize();
v = this.read(is);
}
return v;
};
};
StreamHelpers.VSizeContainer1OptHelper = function () {
this.writeOptional = function (os, tag, v) {
if (v !== undefined && v !== null && os.writeOptional(tag, OptionalFormat.VSize)) {
this.write(os, v);
}
};
this.readOptional = function (is, tag) {
let v;
if (is.readOptional(tag, OptionalFormat.VSize)) {
v = this.read(is);
}
return v;
};
};
//
// Sequence helper to write sequences
//
class SequenceHelper {
write(os, v) {
if (v === null || v === undefined || v.length === 0) {
os.writeSize(0);
} else {
const helper = this.elementHelper;
os.writeSize(v.length);
for (let i = 0; i < v.length; ++i) {
helper.write(os, v[i]);
}
}
}
read(is) {
const helper = this.elementHelper; // Cache the element helper.
const sz = is.readAndCheckSeqSize(helper.minWireSize);
const v = [];
v.length = sz;
for (let i = 0; i < sz; ++i) {
v[i] = helper.read(is);
}
return v;
}
size(v) {
return v === null || v === undefined ? 0 : v.length;
}
get minWireSize() {
return 1;
}
}
// Specialization optimized for ByteSeq
const byteSeqHelper = new SequenceHelper();
byteSeqHelper.write = (os, v) => os.writeByteSeq(v);
byteSeqHelper.read = is => is.readByteSeq();
defineProperty(byteSeqHelper, "elementHelper", { get: () => ByteHelper });
StreamHelpers.VSizeContainer1OptHelper.call(byteSeqHelper);
// Read method for value sequences
const valueSequenceHelperRead = function (is) {
const sz = is.readAndCheckSeqSize(1);
const v = [];
v.length = sz;
const elementType = this.elementType;
const readValueAtIndex = function (idx) {
is.readValue(obj => {
v[idx] = obj;
}, elementType);
};
for (let i = 0; i < sz; ++i) {
readValueAtIndex(i);
}
return v;
};
StreamHelpers.generateSeqHelper = function (elementHelper, fixed, elementType) {
if (elementHelper === ByteHelper) {
return byteSeqHelper;
}
const helper = new SequenceHelper();
if (fixed) {
if (elementHelper.minWireSize === 1) {
StreamHelpers.VSizeContainer1OptHelper.call(helper);
} else {
StreamHelpers.VSizeContainerOptHelper.call(helper, elementHelper.minWireSize);
}
} else {
StreamHelpers.FSizeOptHelper.call(helper);
}
defineProperty(helper, "elementHelper", { get: () => elementHelper });
if (elementHelper == ObjectHelper) {
defineProperty(helper, "elementType", {
get: () => TypeRegistry.getValueType(elementType),
});
helper.read = valueSequenceHelperRead;
}
return helper;
};
//
// Dictionary helper to write dictionaries
//
class DictionaryHelper {
write(os, v) {
if (v === null || v == undefined || v.size === 0) {
os.writeSize(0);
} else {
const keyHelper = this.keyHelper;
const valueHelper = this.valueHelper;
os.writeSize(v.size);
for (const [key, value] of v) {
keyHelper.write(os, key);
valueHelper.write(os, value);
}
}
}
read(is) {
const mapType = this.mapType;
const v = new mapType();
const sz = is.readSize();
const keyHelper = this.keyHelper;
const valueHelper = this.valueHelper;
for (let i = 0; i < sz; ++i) {
v.set(keyHelper.read(is), valueHelper.read(is));
}
return v;
}
size(v) {
return v === null || v === undefined ? 0 : v.size;
}
get minWireSize() {
return 1;
}
}
// Read method for dictionaries of values
function valueDictionaryHelperRead(is) {
const sz = is.readSize();
const mapType = this.mapType;
const v = new mapType();
const valueType = this.valueType;
const readValueForKey = function (key) {
is.readValue(obj => v.set(key, obj), valueType);
};
const keyHelper = this.keyHelper;
for (let i = 0; i < sz; ++i) {
readValueForKey(keyHelper.read(is));
}
return v;
}
StreamHelpers.generateDictHelper = function (keyHelper, valueHelper, fixed, valueType, mapType) {
const helper = new DictionaryHelper();
if (fixed) {
StreamHelpers.VSizeContainerOptHelper.call(helper, keyHelper.minWireSize + valueHelper.minWireSize);
} else {
StreamHelpers.FSizeOptHelper.call(helper);
}
defineProperty(helper, "mapType", {
get: () => mapType,
});
defineProperty(helper, "keyHelper", {
get: () => keyHelper,
});
defineProperty(helper, "valueHelper", {
get: () => valueHelper,
});
if (valueHelper == ObjectHelper) {
defineProperty(helper, "valueType", {
get: () => TypeRegistry.getValueType(valueType),
});
helper.read = valueDictionaryHelperRead;
}
return helper;
};
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