diff options
Diffstat (limited to 'node_modules/@webassemblyjs/leb128')
-rw-r--r-- | node_modules/@webassemblyjs/leb128/LICENSE.txt | 194 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/esm/bits.js | 145 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/esm/bufs.js | 218 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/esm/index.js | 34 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/esm/leb.js | 316 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/lib/bits.js | 156 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/lib/bufs.js | 236 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/lib/index.js | 59 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/lib/leb.js | 332 | ||||
-rw-r--r-- | node_modules/@webassemblyjs/leb128/package.json | 45 |
10 files changed, 0 insertions, 1735 deletions
diff --git a/node_modules/@webassemblyjs/leb128/LICENSE.txt b/node_modules/@webassemblyjs/leb128/LICENSE.txt deleted file mode 100644 index 55e332a..0000000 --- a/node_modules/@webassemblyjs/leb128/LICENSE.txt +++ /dev/null @@ -1,194 +0,0 @@ -Copyright 2012 The Obvious Corporation. -http://obvious.com/ - -Licensed under the Apache License, Version 2.0 (the "License"); -you may not use this file except in compliance with the License. -You may obtain a copy of the License at - -http://www.apache.org/licenses/LICENSE-2.0 - -Unless required by applicable law or agreed to in writing, software -distributed under the License is distributed on an "AS IS" BASIS, -WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -See the License for the specific language governing permissions and -limitations under the License. - - -------------------------------------------------------------------------- - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - -TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - -1. Definitions. - - "License" shall mean the terms and conditions for use, reproduction, - and distribution as defined by Sections 1 through 9 of this document. - - "Licensor" shall mean the copyright owner or entity authorized by - the copyright owner that is granting the License. - - "Legal Entity" shall mean the union of the acting entity and all - other entities that control, are controlled by, or are under common - control with that entity. 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In no event and under no legal theory, - whether in tort (including negligence), contract, or otherwise, - unless required by applicable law (such as deliberate and grossly - negligent acts) or agreed to in writing, shall any Contributor be - liable to You for damages, including any direct, indirect, special, - incidental, or consequential damages of any character arising as a - result of this License or out of the use or inability to use the - Work (including but not limited to damages for loss of goodwill, - work stoppage, computer failure or malfunction, or any and all - other commercial damages or losses), even if such Contributor - has been advised of the possibility of such damages. - -9. Accepting Warranty or Additional Liability. While redistributing - the Work or Derivative Works thereof, You may choose to offer, - and charge a fee for, acceptance of support, warranty, indemnity, - or other liability obligations and/or rights consistent with this - License. However, in accepting such obligations, You may act only - on Your own behalf and on Your sole responsibility, not on behalf - of any other Contributor, and only if You agree to indemnify, - defend, and hold each Contributor harmless for any liability - incurred by, or claims asserted against, such Contributor by reason - of your accepting any such warranty or additional liability. - -END OF TERMS AND CONDITIONS diff --git a/node_modules/@webassemblyjs/leb128/esm/bits.js b/node_modules/@webassemblyjs/leb128/esm/bits.js deleted file mode 100644 index 4c763cd..0000000 --- a/node_modules/@webassemblyjs/leb128/esm/bits.js +++ /dev/null @@ -1,145 +0,0 @@ -// Copyright 2012 The Obvious Corporation. - -/* - * bits: Bitwise buffer utilities. The utilities here treat a buffer - * as a little-endian bigint, so the lowest-order bit is bit #0 of - * `buffer[0]`, and the highest-order bit is bit #7 of - * `buffer[buffer.length - 1]`. - */ - -/* - * Modules used - */ -"use strict"; -/* - * Exported bindings - */ - -/** - * Extracts the given number of bits from the buffer at the indicated - * index, returning a simple number as the result. If bits are requested - * that aren't covered by the buffer, the `defaultBit` is used as their - * value. - * - * The `bitLength` must be no more than 32. The `defaultBit` if not - * specified is taken to be `0`. - */ - -export function extract(buffer, bitIndex, bitLength, defaultBit) { - if (bitLength < 0 || bitLength > 32) { - throw new Error("Bad value for bitLength."); - } - - if (defaultBit === undefined) { - defaultBit = 0; - } else if (defaultBit !== 0 && defaultBit !== 1) { - throw new Error("Bad value for defaultBit."); - } - - var defaultByte = defaultBit * 0xff; - var result = 0; // All starts are inclusive. The {endByte, endBit} pair is exclusive, but - // if endBit !== 0, then endByte is inclusive. - - var lastBit = bitIndex + bitLength; - var startByte = Math.floor(bitIndex / 8); - var startBit = bitIndex % 8; - var endByte = Math.floor(lastBit / 8); - var endBit = lastBit % 8; - - if (endBit !== 0) { - // `(1 << endBit) - 1` is the mask of all bits up to but not including - // the endBit. - result = get(endByte) & (1 << endBit) - 1; - } - - while (endByte > startByte) { - endByte--; - result = result << 8 | get(endByte); - } - - result >>>= startBit; - return result; - - function get(index) { - var result = buffer[index]; - return result === undefined ? defaultByte : result; - } -} -/** - * Injects the given bits into the given buffer at the given index. Any - * bits in the value beyond the length to set are ignored. - */ - -export function inject(buffer, bitIndex, bitLength, value) { - if (bitLength < 0 || bitLength > 32) { - throw new Error("Bad value for bitLength."); - } - - var lastByte = Math.floor((bitIndex + bitLength - 1) / 8); - - if (bitIndex < 0 || lastByte >= buffer.length) { - throw new Error("Index out of range."); - } // Just keeping it simple, until / unless profiling shows that this - // is a problem. - - - var atByte = Math.floor(bitIndex / 8); - var atBit = bitIndex % 8; - - while (bitLength > 0) { - if (value & 1) { - buffer[atByte] |= 1 << atBit; - } else { - buffer[atByte] &= ~(1 << atBit); - } - - value >>= 1; - bitLength--; - atBit = (atBit + 1) % 8; - - if (atBit === 0) { - atByte++; - } - } -} -/** - * Gets the sign bit of the given buffer. - */ - -export function getSign(buffer) { - return buffer[buffer.length - 1] >>> 7; -} -/** - * Gets the zero-based bit number of the highest-order bit with the - * given value in the given buffer. - * - * If the buffer consists entirely of the other bit value, then this returns - * `-1`. - */ - -export function highOrder(bit, buffer) { - var length = buffer.length; - var fullyWrongByte = (bit ^ 1) * 0xff; // the other-bit extended to a full byte - - while (length > 0 && buffer[length - 1] === fullyWrongByte) { - length--; - } - - if (length === 0) { - // Degenerate case. The buffer consists entirely of ~bit. - return -1; - } - - var byteToCheck = buffer[length - 1]; - var result = length * 8 - 1; - - for (var i = 7; i > 0; i--) { - if ((byteToCheck >> i & 1) === bit) { - break; - } - - result--; - } - - return result; -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/esm/bufs.js b/node_modules/@webassemblyjs/leb128/esm/bufs.js deleted file mode 100644 index 7e2a2bf..0000000 --- a/node_modules/@webassemblyjs/leb128/esm/bufs.js +++ /dev/null @@ -1,218 +0,0 @@ -// Copyright 2012 The Obvious Corporation. - -/* - * bufs: Buffer utilities. - */ - -/* - * Module variables - */ - -/** Pool of buffers, where `bufPool[x].length === x`. */ -var bufPool = []; -/** Maximum length of kept temporary buffers. */ - -var TEMP_BUF_MAXIMUM_LENGTH = 20; -/** Minimum exactly-representable 64-bit int. */ - -var MIN_EXACT_INT64 = -0x8000000000000000; -/** Maximum exactly-representable 64-bit int. */ - -var MAX_EXACT_INT64 = 0x7ffffffffffffc00; -/** Maximum exactly-representable 64-bit uint. */ - -var MAX_EXACT_UINT64 = 0xfffffffffffff800; -/** - * The int value consisting just of a 1 in bit #32 (that is, one more - * than the maximum 32-bit unsigned value). - */ - -var BIT_32 = 0x100000000; -/** - * The int value consisting just of a 1 in bit #64 (that is, one more - * than the maximum 64-bit unsigned value). - */ - -var BIT_64 = 0x10000000000000000; -/* - * Helper functions - */ - -/** - * Masks off all but the lowest bit set of the given number. - */ - -function lowestBit(num) { - return num & -num; -} -/** - * Gets whether trying to add the second number to the first is lossy - * (inexact). The first number is meant to be an accumulated result. - */ - - -function isLossyToAdd(accum, num) { - if (num === 0) { - return false; - } - - var lowBit = lowestBit(num); - var added = accum + lowBit; - - if (added === accum) { - return true; - } - - if (added - lowBit !== accum) { - return true; - } - - return false; -} -/* - * Exported functions - */ - -/** - * Allocates a buffer of the given length, which is initialized - * with all zeroes. This returns a buffer from the pool if it is - * available, or a freshly-allocated buffer if not. - */ - - -export function alloc(length) { - var result = bufPool[length]; - - if (result) { - bufPool[length] = undefined; - } else { - result = new Buffer(length); - } - - result.fill(0); - return result; -} -/** - * Releases a buffer back to the pool. - */ - -export function free(buffer) { - var length = buffer.length; - - if (length < TEMP_BUF_MAXIMUM_LENGTH) { - bufPool[length] = buffer; - } -} -/** - * Resizes a buffer, returning a new buffer. Returns the argument if - * the length wouldn't actually change. This function is only safe to - * use if the given buffer was allocated within this module (since - * otherwise the buffer might possibly be shared externally). - */ - -export function resize(buffer, length) { - if (length === buffer.length) { - return buffer; - } - - var newBuf = alloc(length); - buffer.copy(newBuf); - free(buffer); - return newBuf; -} -/** - * Reads an arbitrary signed int from a buffer. - */ - -export function readInt(buffer) { - var length = buffer.length; - var positive = buffer[length - 1] < 0x80; - var result = positive ? 0 : -1; - var lossy = false; // Note: We can't use bit manipulation here, since that stops - // working if the result won't fit in a 32-bit int. - - if (length < 7) { - // Common case which can't possibly be lossy (because the result has - // no more than 48 bits, and loss only happens with 54 or more). - for (var i = length - 1; i >= 0; i--) { - result = result * 0x100 + buffer[i]; - } - } else { - for (var _i = length - 1; _i >= 0; _i--) { - var one = buffer[_i]; - result *= 0x100; - - if (isLossyToAdd(result, one)) { - lossy = true; - } - - result += one; - } - } - - return { - value: result, - lossy: lossy - }; -} -/** - * Reads an arbitrary unsigned int from a buffer. - */ - -export function readUInt(buffer) { - var length = buffer.length; - var result = 0; - var lossy = false; // Note: See above in re bit manipulation. - - if (length < 7) { - // Common case which can't possibly be lossy (see above). - for (var i = length - 1; i >= 0; i--) { - result = result * 0x100 + buffer[i]; - } - } else { - for (var _i2 = length - 1; _i2 >= 0; _i2--) { - var one = buffer[_i2]; - result *= 0x100; - - if (isLossyToAdd(result, one)) { - lossy = true; - } - - result += one; - } - } - - return { - value: result, - lossy: lossy - }; -} -/** - * Writes a little-endian 64-bit signed int into a buffer. - */ - -export function writeInt64(value, buffer) { - if (value < MIN_EXACT_INT64 || value > MAX_EXACT_INT64) { - throw new Error("Value out of range."); - } - - if (value < 0) { - value += BIT_64; - } - - writeUInt64(value, buffer); -} -/** - * Writes a little-endian 64-bit unsigned int into a buffer. - */ - -export function writeUInt64(value, buffer) { - if (value < 0 || value > MAX_EXACT_UINT64) { - throw new Error("Value out of range."); - } - - var lowWord = value % BIT_32; - var highWord = Math.floor(value / BIT_32); - buffer.writeUInt32LE(lowWord, 0); - buffer.writeUInt32LE(highWord, 4); -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/esm/index.js b/node_modules/@webassemblyjs/leb128/esm/index.js deleted file mode 100644 index 7ee23fa..0000000 --- a/node_modules/@webassemblyjs/leb128/esm/index.js +++ /dev/null @@ -1,34 +0,0 @@ -import leb from "./leb"; -/** - * According to https://webassembly.github.io/spec/core/binary/values.html#binary-int - * max = ceil(32/7) - */ - -export var MAX_NUMBER_OF_BYTE_U32 = 5; -/** - * According to https://webassembly.github.io/spec/core/binary/values.html#binary-int - * max = ceil(64/7) - */ - -export var MAX_NUMBER_OF_BYTE_U64 = 10; -export function decodeInt64(encodedBuffer, index) { - return leb.decodeInt64(encodedBuffer, index); -} -export function decodeUInt64(encodedBuffer, index) { - return leb.decodeUInt64(encodedBuffer, index); -} -export function decodeInt32(encodedBuffer, index) { - return leb.decodeInt32(encodedBuffer, index); -} -export function decodeUInt32(encodedBuffer, index) { - return leb.decodeUInt32(encodedBuffer, index); -} -export function encodeU32(v) { - return leb.encodeUInt32(v); -} -export function encodeI32(v) { - return leb.encodeInt32(v); -} -export function encodeI64(v) { - return leb.encodeInt64(v); -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/esm/leb.js b/node_modules/@webassemblyjs/leb128/esm/leb.js deleted file mode 100644 index 1b6ee09..0000000 --- a/node_modules/@webassemblyjs/leb128/esm/leb.js +++ /dev/null @@ -1,316 +0,0 @@ -// Copyright 2012 The Obvious Corporation. - -/* - * leb: LEB128 utilities. - */ - -/* - * Modules used - */ -"use strict"; - -import Long from "@xtuc/long"; -import * as bits from "./bits"; -import * as bufs from "./bufs"; -/* - * Module variables - */ - -/** The minimum possible 32-bit signed int. */ - -var MIN_INT32 = -0x80000000; -/** The maximum possible 32-bit signed int. */ - -var MAX_INT32 = 0x7fffffff; -/** The maximum possible 32-bit unsigned int. */ - -var MAX_UINT32 = 0xffffffff; -/** The minimum possible 64-bit signed int. */ -// const MIN_INT64 = -0x8000000000000000; - -/** - * The maximum possible 64-bit signed int that is representable as a - * JavaScript number. - */ -// const MAX_INT64 = 0x7ffffffffffffc00; - -/** - * The maximum possible 64-bit unsigned int that is representable as a - * JavaScript number. - */ -// const MAX_UINT64 = 0xfffffffffffff800; - -/* - * Helper functions - */ - -/** - * Determines the number of bits required to encode the number - * represented in the given buffer as a signed value. The buffer is - * taken to represent a signed number in little-endian form. - * - * The number of bits to encode is the (zero-based) bit number of the - * highest-order non-sign-matching bit, plus two. For example: - * - * 11111011 01110101 - * high low - * - * The sign bit here is 1 (that is, it's a negative number). The highest - * bit number that doesn't match the sign is bit #10 (where the lowest-order - * bit is bit #0). So, we have to encode at least 12 bits total. - * - * As a special degenerate case, the numbers 0 and -1 each require just one bit. - */ - -function signedBitCount(buffer) { - return bits.highOrder(bits.getSign(buffer) ^ 1, buffer) + 2; -} -/** - * Determines the number of bits required to encode the number - * represented in the given buffer as an unsigned value. The buffer is - * taken to represent an unsigned number in little-endian form. - * - * The number of bits to encode is the (zero-based) bit number of the - * highest-order 1 bit, plus one. For example: - * - * 00011000 01010011 - * high low - * - * The highest-order 1 bit here is bit #12 (where the lowest-order bit - * is bit #0). So, we have to encode at least 13 bits total. - * - * As a special degenerate case, the number 0 requires 1 bit. - */ - - -function unsignedBitCount(buffer) { - var result = bits.highOrder(1, buffer) + 1; - return result ? result : 1; -} -/** - * Common encoder for both signed and unsigned ints. This takes a - * bigint-ish buffer, returning an LEB128-encoded buffer. - */ - - -function encodeBufferCommon(buffer, signed) { - var signBit; - var bitCount; - - if (signed) { - signBit = bits.getSign(buffer); - bitCount = signedBitCount(buffer); - } else { - signBit = 0; - bitCount = unsignedBitCount(buffer); - } - - var byteCount = Math.ceil(bitCount / 7); - var result = bufs.alloc(byteCount); - - for (var i = 0; i < byteCount; i++) { - var payload = bits.extract(buffer, i * 7, 7, signBit); - result[i] = payload | 0x80; - } // Mask off the top bit of the last byte, to indicate the end of the - // encoding. - - - result[byteCount - 1] &= 0x7f; - return result; -} -/** - * Gets the byte-length of the value encoded in the given buffer at - * the given index. - */ - - -function encodedLength(encodedBuffer, index) { - var result = 0; - - while (encodedBuffer[index + result] >= 0x80) { - result++; - } - - result++; // to account for the last byte - - if (index + result > encodedBuffer.length) {// FIXME(sven): seems to cause false positives - // throw new Error("integer representation too long"); - } - - return result; -} -/** - * Common decoder for both signed and unsigned ints. This takes an - * LEB128-encoded buffer, returning a bigint-ish buffer. - */ - - -function decodeBufferCommon(encodedBuffer, index, signed) { - index = index === undefined ? 0 : index; - var length = encodedLength(encodedBuffer, index); - var bitLength = length * 7; - var byteLength = Math.ceil(bitLength / 8); - var result = bufs.alloc(byteLength); - var outIndex = 0; - - while (length > 0) { - bits.inject(result, outIndex, 7, encodedBuffer[index]); - outIndex += 7; - index++; - length--; - } - - var signBit; - var signByte; - - if (signed) { - // Sign-extend the last byte. - var lastByte = result[byteLength - 1]; - var endBit = outIndex % 8; - - if (endBit !== 0) { - var shift = 32 - endBit; // 32 because JS bit ops work on 32-bit ints. - - lastByte = result[byteLength - 1] = lastByte << shift >> shift & 0xff; - } - - signBit = lastByte >> 7; - signByte = signBit * 0xff; - } else { - signBit = 0; - signByte = 0; - } // Slice off any superfluous bytes, that is, ones that add no meaningful - // bits (because the value would be the same if they were removed). - - - while (byteLength > 1 && result[byteLength - 1] === signByte && (!signed || result[byteLength - 2] >> 7 === signBit)) { - byteLength--; - } - - result = bufs.resize(result, byteLength); - return { - value: result, - nextIndex: index - }; -} -/* - * Exported bindings - */ - - -function encodeIntBuffer(buffer) { - return encodeBufferCommon(buffer, true); -} - -function decodeIntBuffer(encodedBuffer, index) { - return decodeBufferCommon(encodedBuffer, index, true); -} - -function encodeInt32(num) { - var buf = bufs.alloc(4); - buf.writeInt32LE(num, 0); - var result = encodeIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeInt32(encodedBuffer, index) { - var result = decodeIntBuffer(encodedBuffer, index); - var parsed = bufs.readInt(result.value); - var value = parsed.value; - bufs.free(result.value); - - if (value < MIN_INT32 || value > MAX_INT32) { - throw new Error("integer too large"); - } - - return { - value: value, - nextIndex: result.nextIndex - }; -} - -function encodeInt64(num) { - var buf = bufs.alloc(8); - bufs.writeInt64(num, buf); - var result = encodeIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeInt64(encodedBuffer, index) { - var result = decodeIntBuffer(encodedBuffer, index); - var value = Long.fromBytesLE(result.value, false); - bufs.free(result.value); - return { - value: value, - nextIndex: result.nextIndex, - lossy: false - }; -} - -function encodeUIntBuffer(buffer) { - return encodeBufferCommon(buffer, false); -} - -function decodeUIntBuffer(encodedBuffer, index) { - return decodeBufferCommon(encodedBuffer, index, false); -} - -function encodeUInt32(num) { - var buf = bufs.alloc(4); - buf.writeUInt32LE(num, 0); - var result = encodeUIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeUInt32(encodedBuffer, index) { - var result = decodeUIntBuffer(encodedBuffer, index); - var parsed = bufs.readUInt(result.value); - var value = parsed.value; - bufs.free(result.value); - - if (value > MAX_UINT32) { - throw new Error("integer too large"); - } - - return { - value: value, - nextIndex: result.nextIndex - }; -} - -function encodeUInt64(num) { - var buf = bufs.alloc(8); - bufs.writeUInt64(num, buf); - var result = encodeUIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeUInt64(encodedBuffer, index) { - var result = decodeUIntBuffer(encodedBuffer, index); - var value = Long.fromBytesLE(result.value, true); - bufs.free(result.value); - return { - value: value, - nextIndex: result.nextIndex, - lossy: false - }; -} - -export default { - decodeInt32: decodeInt32, - decodeInt64: decodeInt64, - decodeIntBuffer: decodeIntBuffer, - decodeUInt32: decodeUInt32, - decodeUInt64: decodeUInt64, - decodeUIntBuffer: decodeUIntBuffer, - encodeInt32: encodeInt32, - encodeInt64: encodeInt64, - encodeIntBuffer: encodeIntBuffer, - encodeUInt32: encodeUInt32, - encodeUInt64: encodeUInt64, - encodeUIntBuffer: encodeUIntBuffer -};
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/lib/bits.js b/node_modules/@webassemblyjs/leb128/lib/bits.js deleted file mode 100644 index 5acf246..0000000 --- a/node_modules/@webassemblyjs/leb128/lib/bits.js +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2012 The Obvious Corporation. - -/* - * bits: Bitwise buffer utilities. The utilities here treat a buffer - * as a little-endian bigint, so the lowest-order bit is bit #0 of - * `buffer[0]`, and the highest-order bit is bit #7 of - * `buffer[buffer.length - 1]`. - */ - -/* - * Modules used - */ -"use strict"; -/* - * Exported bindings - */ - -/** - * Extracts the given number of bits from the buffer at the indicated - * index, returning a simple number as the result. If bits are requested - * that aren't covered by the buffer, the `defaultBit` is used as their - * value. - * - * The `bitLength` must be no more than 32. The `defaultBit` if not - * specified is taken to be `0`. - */ - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.extract = extract; -exports.inject = inject; -exports.getSign = getSign; -exports.highOrder = highOrder; - -function extract(buffer, bitIndex, bitLength, defaultBit) { - if (bitLength < 0 || bitLength > 32) { - throw new Error("Bad value for bitLength."); - } - - if (defaultBit === undefined) { - defaultBit = 0; - } else if (defaultBit !== 0 && defaultBit !== 1) { - throw new Error("Bad value for defaultBit."); - } - - var defaultByte = defaultBit * 0xff; - var result = 0; // All starts are inclusive. The {endByte, endBit} pair is exclusive, but - // if endBit !== 0, then endByte is inclusive. - - var lastBit = bitIndex + bitLength; - var startByte = Math.floor(bitIndex / 8); - var startBit = bitIndex % 8; - var endByte = Math.floor(lastBit / 8); - var endBit = lastBit % 8; - - if (endBit !== 0) { - // `(1 << endBit) - 1` is the mask of all bits up to but not including - // the endBit. - result = get(endByte) & (1 << endBit) - 1; - } - - while (endByte > startByte) { - endByte--; - result = result << 8 | get(endByte); - } - - result >>>= startBit; - return result; - - function get(index) { - var result = buffer[index]; - return result === undefined ? defaultByte : result; - } -} -/** - * Injects the given bits into the given buffer at the given index. Any - * bits in the value beyond the length to set are ignored. - */ - - -function inject(buffer, bitIndex, bitLength, value) { - if (bitLength < 0 || bitLength > 32) { - throw new Error("Bad value for bitLength."); - } - - var lastByte = Math.floor((bitIndex + bitLength - 1) / 8); - - if (bitIndex < 0 || lastByte >= buffer.length) { - throw new Error("Index out of range."); - } // Just keeping it simple, until / unless profiling shows that this - // is a problem. - - - var atByte = Math.floor(bitIndex / 8); - var atBit = bitIndex % 8; - - while (bitLength > 0) { - if (value & 1) { - buffer[atByte] |= 1 << atBit; - } else { - buffer[atByte] &= ~(1 << atBit); - } - - value >>= 1; - bitLength--; - atBit = (atBit + 1) % 8; - - if (atBit === 0) { - atByte++; - } - } -} -/** - * Gets the sign bit of the given buffer. - */ - - -function getSign(buffer) { - return buffer[buffer.length - 1] >>> 7; -} -/** - * Gets the zero-based bit number of the highest-order bit with the - * given value in the given buffer. - * - * If the buffer consists entirely of the other bit value, then this returns - * `-1`. - */ - - -function highOrder(bit, buffer) { - var length = buffer.length; - var fullyWrongByte = (bit ^ 1) * 0xff; // the other-bit extended to a full byte - - while (length > 0 && buffer[length - 1] === fullyWrongByte) { - length--; - } - - if (length === 0) { - // Degenerate case. The buffer consists entirely of ~bit. - return -1; - } - - var byteToCheck = buffer[length - 1]; - var result = length * 8 - 1; - - for (var i = 7; i > 0; i--) { - if ((byteToCheck >> i & 1) === bit) { - break; - } - - result--; - } - - return result; -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/lib/bufs.js b/node_modules/@webassemblyjs/leb128/lib/bufs.js deleted file mode 100644 index f9a176e..0000000 --- a/node_modules/@webassemblyjs/leb128/lib/bufs.js +++ /dev/null @@ -1,236 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.alloc = alloc; -exports.free = free; -exports.resize = resize; -exports.readInt = readInt; -exports.readUInt = readUInt; -exports.writeInt64 = writeInt64; -exports.writeUInt64 = writeUInt64; -// Copyright 2012 The Obvious Corporation. - -/* - * bufs: Buffer utilities. - */ - -/* - * Module variables - */ - -/** Pool of buffers, where `bufPool[x].length === x`. */ -var bufPool = []; -/** Maximum length of kept temporary buffers. */ - -var TEMP_BUF_MAXIMUM_LENGTH = 20; -/** Minimum exactly-representable 64-bit int. */ - -var MIN_EXACT_INT64 = -0x8000000000000000; -/** Maximum exactly-representable 64-bit int. */ - -var MAX_EXACT_INT64 = 0x7ffffffffffffc00; -/** Maximum exactly-representable 64-bit uint. */ - -var MAX_EXACT_UINT64 = 0xfffffffffffff800; -/** - * The int value consisting just of a 1 in bit #32 (that is, one more - * than the maximum 32-bit unsigned value). - */ - -var BIT_32 = 0x100000000; -/** - * The int value consisting just of a 1 in bit #64 (that is, one more - * than the maximum 64-bit unsigned value). - */ - -var BIT_64 = 0x10000000000000000; -/* - * Helper functions - */ - -/** - * Masks off all but the lowest bit set of the given number. - */ - -function lowestBit(num) { - return num & -num; -} -/** - * Gets whether trying to add the second number to the first is lossy - * (inexact). The first number is meant to be an accumulated result. - */ - - -function isLossyToAdd(accum, num) { - if (num === 0) { - return false; - } - - var lowBit = lowestBit(num); - var added = accum + lowBit; - - if (added === accum) { - return true; - } - - if (added - lowBit !== accum) { - return true; - } - - return false; -} -/* - * Exported functions - */ - -/** - * Allocates a buffer of the given length, which is initialized - * with all zeroes. This returns a buffer from the pool if it is - * available, or a freshly-allocated buffer if not. - */ - - -function alloc(length) { - var result = bufPool[length]; - - if (result) { - bufPool[length] = undefined; - } else { - result = new Buffer(length); - } - - result.fill(0); - return result; -} -/** - * Releases a buffer back to the pool. - */ - - -function free(buffer) { - var length = buffer.length; - - if (length < TEMP_BUF_MAXIMUM_LENGTH) { - bufPool[length] = buffer; - } -} -/** - * Resizes a buffer, returning a new buffer. Returns the argument if - * the length wouldn't actually change. This function is only safe to - * use if the given buffer was allocated within this module (since - * otherwise the buffer might possibly be shared externally). - */ - - -function resize(buffer, length) { - if (length === buffer.length) { - return buffer; - } - - var newBuf = alloc(length); - buffer.copy(newBuf); - free(buffer); - return newBuf; -} -/** - * Reads an arbitrary signed int from a buffer. - */ - - -function readInt(buffer) { - var length = buffer.length; - var positive = buffer[length - 1] < 0x80; - var result = positive ? 0 : -1; - var lossy = false; // Note: We can't use bit manipulation here, since that stops - // working if the result won't fit in a 32-bit int. - - if (length < 7) { - // Common case which can't possibly be lossy (because the result has - // no more than 48 bits, and loss only happens with 54 or more). - for (var i = length - 1; i >= 0; i--) { - result = result * 0x100 + buffer[i]; - } - } else { - for (var _i = length - 1; _i >= 0; _i--) { - var one = buffer[_i]; - result *= 0x100; - - if (isLossyToAdd(result, one)) { - lossy = true; - } - - result += one; - } - } - - return { - value: result, - lossy: lossy - }; -} -/** - * Reads an arbitrary unsigned int from a buffer. - */ - - -function readUInt(buffer) { - var length = buffer.length; - var result = 0; - var lossy = false; // Note: See above in re bit manipulation. - - if (length < 7) { - // Common case which can't possibly be lossy (see above). - for (var i = length - 1; i >= 0; i--) { - result = result * 0x100 + buffer[i]; - } - } else { - for (var _i2 = length - 1; _i2 >= 0; _i2--) { - var one = buffer[_i2]; - result *= 0x100; - - if (isLossyToAdd(result, one)) { - lossy = true; - } - - result += one; - } - } - - return { - value: result, - lossy: lossy - }; -} -/** - * Writes a little-endian 64-bit signed int into a buffer. - */ - - -function writeInt64(value, buffer) { - if (value < MIN_EXACT_INT64 || value > MAX_EXACT_INT64) { - throw new Error("Value out of range."); - } - - if (value < 0) { - value += BIT_64; - } - - writeUInt64(value, buffer); -} -/** - * Writes a little-endian 64-bit unsigned int into a buffer. - */ - - -function writeUInt64(value, buffer) { - if (value < 0 || value > MAX_EXACT_UINT64) { - throw new Error("Value out of range."); - } - - var lowWord = value % BIT_32; - var highWord = Math.floor(value / BIT_32); - buffer.writeUInt32LE(lowWord, 0); - buffer.writeUInt32LE(highWord, 4); -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/lib/index.js b/node_modules/@webassemblyjs/leb128/lib/index.js deleted file mode 100644 index 6687537..0000000 --- a/node_modules/@webassemblyjs/leb128/lib/index.js +++ /dev/null @@ -1,59 +0,0 @@ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.decodeInt64 = decodeInt64; -exports.decodeUInt64 = decodeUInt64; -exports.decodeInt32 = decodeInt32; -exports.decodeUInt32 = decodeUInt32; -exports.encodeU32 = encodeU32; -exports.encodeI32 = encodeI32; -exports.encodeI64 = encodeI64; -exports.MAX_NUMBER_OF_BYTE_U64 = exports.MAX_NUMBER_OF_BYTE_U32 = void 0; - -var _leb = _interopRequireDefault(require("./leb")); - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -/** - * According to https://webassembly.github.io/spec/core/binary/values.html#binary-int - * max = ceil(32/7) - */ -var MAX_NUMBER_OF_BYTE_U32 = 5; -/** - * According to https://webassembly.github.io/spec/core/binary/values.html#binary-int - * max = ceil(64/7) - */ - -exports.MAX_NUMBER_OF_BYTE_U32 = MAX_NUMBER_OF_BYTE_U32; -var MAX_NUMBER_OF_BYTE_U64 = 10; -exports.MAX_NUMBER_OF_BYTE_U64 = MAX_NUMBER_OF_BYTE_U64; - -function decodeInt64(encodedBuffer, index) { - return _leb.default.decodeInt64(encodedBuffer, index); -} - -function decodeUInt64(encodedBuffer, index) { - return _leb.default.decodeUInt64(encodedBuffer, index); -} - -function decodeInt32(encodedBuffer, index) { - return _leb.default.decodeInt32(encodedBuffer, index); -} - -function decodeUInt32(encodedBuffer, index) { - return _leb.default.decodeUInt32(encodedBuffer, index); -} - -function encodeU32(v) { - return _leb.default.encodeUInt32(v); -} - -function encodeI32(v) { - return _leb.default.encodeInt32(v); -} - -function encodeI64(v) { - return _leb.default.encodeInt64(v); -}
\ No newline at end of file diff --git a/node_modules/@webassemblyjs/leb128/lib/leb.js b/node_modules/@webassemblyjs/leb128/lib/leb.js deleted file mode 100644 index 3c1d4aa..0000000 --- a/node_modules/@webassemblyjs/leb128/lib/leb.js +++ /dev/null @@ -1,332 +0,0 @@ -// Copyright 2012 The Obvious Corporation. - -/* - * leb: LEB128 utilities. - */ - -/* - * Modules used - */ -"use strict"; - -Object.defineProperty(exports, "__esModule", { - value: true -}); -exports.default = void 0; - -var _long = _interopRequireDefault(require("@xtuc/long")); - -var bits = _interopRequireWildcard(require("./bits")); - -var bufs = _interopRequireWildcard(require("./bufs")); - -function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } } - -function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } - -/* - * Module variables - */ - -/** The minimum possible 32-bit signed int. */ -var MIN_INT32 = -0x80000000; -/** The maximum possible 32-bit signed int. */ - -var MAX_INT32 = 0x7fffffff; -/** The maximum possible 32-bit unsigned int. */ - -var MAX_UINT32 = 0xffffffff; -/** The minimum possible 64-bit signed int. */ -// const MIN_INT64 = -0x8000000000000000; - -/** - * The maximum possible 64-bit signed int that is representable as a - * JavaScript number. - */ -// const MAX_INT64 = 0x7ffffffffffffc00; - -/** - * The maximum possible 64-bit unsigned int that is representable as a - * JavaScript number. - */ -// const MAX_UINT64 = 0xfffffffffffff800; - -/* - * Helper functions - */ - -/** - * Determines the number of bits required to encode the number - * represented in the given buffer as a signed value. The buffer is - * taken to represent a signed number in little-endian form. - * - * The number of bits to encode is the (zero-based) bit number of the - * highest-order non-sign-matching bit, plus two. For example: - * - * 11111011 01110101 - * high low - * - * The sign bit here is 1 (that is, it's a negative number). The highest - * bit number that doesn't match the sign is bit #10 (where the lowest-order - * bit is bit #0). So, we have to encode at least 12 bits total. - * - * As a special degenerate case, the numbers 0 and -1 each require just one bit. - */ - -function signedBitCount(buffer) { - return bits.highOrder(bits.getSign(buffer) ^ 1, buffer) + 2; -} -/** - * Determines the number of bits required to encode the number - * represented in the given buffer as an unsigned value. The buffer is - * taken to represent an unsigned number in little-endian form. - * - * The number of bits to encode is the (zero-based) bit number of the - * highest-order 1 bit, plus one. For example: - * - * 00011000 01010011 - * high low - * - * The highest-order 1 bit here is bit #12 (where the lowest-order bit - * is bit #0). So, we have to encode at least 13 bits total. - * - * As a special degenerate case, the number 0 requires 1 bit. - */ - - -function unsignedBitCount(buffer) { - var result = bits.highOrder(1, buffer) + 1; - return result ? result : 1; -} -/** - * Common encoder for both signed and unsigned ints. This takes a - * bigint-ish buffer, returning an LEB128-encoded buffer. - */ - - -function encodeBufferCommon(buffer, signed) { - var signBit; - var bitCount; - - if (signed) { - signBit = bits.getSign(buffer); - bitCount = signedBitCount(buffer); - } else { - signBit = 0; - bitCount = unsignedBitCount(buffer); - } - - var byteCount = Math.ceil(bitCount / 7); - var result = bufs.alloc(byteCount); - - for (var i = 0; i < byteCount; i++) { - var payload = bits.extract(buffer, i * 7, 7, signBit); - result[i] = payload | 0x80; - } // Mask off the top bit of the last byte, to indicate the end of the - // encoding. - - - result[byteCount - 1] &= 0x7f; - return result; -} -/** - * Gets the byte-length of the value encoded in the given buffer at - * the given index. - */ - - -function encodedLength(encodedBuffer, index) { - var result = 0; - - while (encodedBuffer[index + result] >= 0x80) { - result++; - } - - result++; // to account for the last byte - - if (index + result > encodedBuffer.length) {// FIXME(sven): seems to cause false positives - // throw new Error("integer representation too long"); - } - - return result; -} -/** - * Common decoder for both signed and unsigned ints. This takes an - * LEB128-encoded buffer, returning a bigint-ish buffer. - */ - - -function decodeBufferCommon(encodedBuffer, index, signed) { - index = index === undefined ? 0 : index; - var length = encodedLength(encodedBuffer, index); - var bitLength = length * 7; - var byteLength = Math.ceil(bitLength / 8); - var result = bufs.alloc(byteLength); - var outIndex = 0; - - while (length > 0) { - bits.inject(result, outIndex, 7, encodedBuffer[index]); - outIndex += 7; - index++; - length--; - } - - var signBit; - var signByte; - - if (signed) { - // Sign-extend the last byte. - var lastByte = result[byteLength - 1]; - var endBit = outIndex % 8; - - if (endBit !== 0) { - var shift = 32 - endBit; // 32 because JS bit ops work on 32-bit ints. - - lastByte = result[byteLength - 1] = lastByte << shift >> shift & 0xff; - } - - signBit = lastByte >> 7; - signByte = signBit * 0xff; - } else { - signBit = 0; - signByte = 0; - } // Slice off any superfluous bytes, that is, ones that add no meaningful - // bits (because the value would be the same if they were removed). - - - while (byteLength > 1 && result[byteLength - 1] === signByte && (!signed || result[byteLength - 2] >> 7 === signBit)) { - byteLength--; - } - - result = bufs.resize(result, byteLength); - return { - value: result, - nextIndex: index - }; -} -/* - * Exported bindings - */ - - -function encodeIntBuffer(buffer) { - return encodeBufferCommon(buffer, true); -} - -function decodeIntBuffer(encodedBuffer, index) { - return decodeBufferCommon(encodedBuffer, index, true); -} - -function encodeInt32(num) { - var buf = bufs.alloc(4); - buf.writeInt32LE(num, 0); - var result = encodeIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeInt32(encodedBuffer, index) { - var result = decodeIntBuffer(encodedBuffer, index); - var parsed = bufs.readInt(result.value); - var value = parsed.value; - bufs.free(result.value); - - if (value < MIN_INT32 || value > MAX_INT32) { - throw new Error("integer too large"); - } - - return { - value: value, - nextIndex: result.nextIndex - }; -} - -function encodeInt64(num) { - var buf = bufs.alloc(8); - bufs.writeInt64(num, buf); - var result = encodeIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeInt64(encodedBuffer, index) { - var result = decodeIntBuffer(encodedBuffer, index); - - var value = _long.default.fromBytesLE(result.value, false); - - bufs.free(result.value); - return { - value: value, - nextIndex: result.nextIndex, - lossy: false - }; -} - -function encodeUIntBuffer(buffer) { - return encodeBufferCommon(buffer, false); -} - -function decodeUIntBuffer(encodedBuffer, index) { - return decodeBufferCommon(encodedBuffer, index, false); -} - -function encodeUInt32(num) { - var buf = bufs.alloc(4); - buf.writeUInt32LE(num, 0); - var result = encodeUIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeUInt32(encodedBuffer, index) { - var result = decodeUIntBuffer(encodedBuffer, index); - var parsed = bufs.readUInt(result.value); - var value = parsed.value; - bufs.free(result.value); - - if (value > MAX_UINT32) { - throw new Error("integer too large"); - } - - return { - value: value, - nextIndex: result.nextIndex - }; -} - -function encodeUInt64(num) { - var buf = bufs.alloc(8); - bufs.writeUInt64(num, buf); - var result = encodeUIntBuffer(buf); - bufs.free(buf); - return result; -} - -function decodeUInt64(encodedBuffer, index) { - var result = decodeUIntBuffer(encodedBuffer, index); - - var value = _long.default.fromBytesLE(result.value, true); - - bufs.free(result.value); - return { - value: value, - nextIndex: result.nextIndex, - lossy: false - }; -} - -var _default = { - decodeInt32: decodeInt32, - decodeInt64: decodeInt64, - decodeIntBuffer: decodeIntBuffer, - decodeUInt32: decodeUInt32, - decodeUInt64: decodeUInt64, - decodeUIntBuffer: decodeUIntBuffer, - encodeInt32: encodeInt32, - encodeInt64: encodeInt64, - encodeIntBuffer: encodeIntBuffer, - encodeUInt32: encodeUInt32, - encodeUInt64: encodeUInt64, - encodeUIntBuffer: encodeUIntBuffer -}; -exports.default = _default;
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