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metro-symbolicate

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metro-symbolicate - npm Package Compare versions

Comparing version 0.73.3 to 0.73.5

4

package.json
{
"name": "metro-symbolicate",
"version": "0.73.3",
"version": "0.73.5",
"description": "🚇 A tool to find the source location from JS bundles and stack traces.",

@@ -24,3 +24,3 @@ "license": "MIT",

"invariant": "^2.2.4",
"metro-source-map": "0.73.3",
"metro-source-map": "0.73.5",
"nullthrows": "^1.1.1",

@@ -27,0 +27,0 @@ "source-map": "^0.5.6",

227

src/ChromeHeapSnapshot.js

@@ -11,10 +11,12 @@ /**

*/
"use strict";
const invariant = require("invariant");
// The snapshot metadata doesn't have a type describing the `children` field
// of `trace_tree`, but modeling it as a type works really well. So we make up
// our own name for it and use that internally.
const CHILDREN_FIELD_TYPE = "__CHILDREN__"; // An adapter for reading and mutating a Chrome heap snapshot in-place,
const CHILDREN_FIELD_TYPE = "__CHILDREN__";
// An adapter for reading and mutating a Chrome heap snapshot in-place,
// including safely decoding and encoding fields that point into the global

@@ -25,7 +27,8 @@ // string table and into enum types.

// the format leaves us no other choice).
class ChromeHeapSnapshotProcessor {
// The raw snapshot data provided to this processor. Mutable.
// An adapter for the global string table in the raw snapshot data.
// This is shared across all the iterators we will create.
constructor(snapshotData) {

@@ -37,5 +40,5 @@ this._snapshotData = snapshotData;

}
traceFunctionInfos() {
return new ChromeHeapSnapshotRecordIterator( // Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
return new ChromeHeapSnapshotRecordIterator(
// Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
// $FlowIgnore[incompatible-call]

@@ -49,4 +52,3 @@ this._snapshotData.trace_function_infos,

this._globalStringTable,
undefined
/* start position */
undefined /* start position */
);

@@ -56,3 +58,4 @@ }

locations() {
return new ChromeHeapSnapshotRecordIterator( // Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
return new ChromeHeapSnapshotRecordIterator(
// Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
// $FlowIgnore[incompatible-call]

@@ -63,4 +66,3 @@ this._snapshotData.locations,

this._globalStringTable,
undefined
/* start position */
undefined /* start position */
);

@@ -70,3 +72,4 @@ }

nodes() {
return new ChromeHeapSnapshotRecordIterator( // Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
return new ChromeHeapSnapshotRecordIterator(
// Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
// $FlowIgnore[incompatible-call]

@@ -77,4 +80,3 @@ this._snapshotData.nodes,

this._globalStringTable,
undefined
/* start position */
undefined /* start position */
);

@@ -84,3 +86,4 @@ }

edges() {
return new ChromeHeapSnapshotRecordIterator( // Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
return new ChromeHeapSnapshotRecordIterator(
// Flow is being conservative here, but we'll never change a number into RawBuffer or vice versa.
// $FlowIgnore[incompatible-call]

@@ -91,4 +94,3 @@ this._snapshotData.edges,

this._globalStringTable,
undefined
/* start position */
undefined /* start position */
);

@@ -105,7 +107,8 @@ }

this._globalStringTable,
undefined
/* start position */
undefined /* start position */
);
}
} // An uniquing adapter for the heap snapshot's string table that allows
}
// An uniquing adapter for the heap snapshot's string table that allows
// retrieving and adding strings.

@@ -118,28 +121,24 @@ //

// copied / replaced with a new array in its containing object.
class ChromeHeapSnapshotStringTable {
constructor(strings) {
this._strings = strings;
this._indexCache = new Map(); // NOTE: _indexCache is lazily initialised in _syncIndexCache.
} // Looks up a string in the string table, adds it if necessary, and returns
this._indexCache = new Map();
// NOTE: _indexCache is lazily initialised in _syncIndexCache.
}
// Looks up a string in the string table, adds it if necessary, and returns
// its index.
add(value) {
this._syncIndexCache();
let index = this._indexCache.get(value);
if (index != null) {
return index;
}
index = this._strings.length;
this._strings.push(value);
this._indexCache.set(value, index);
return index;
} // Retrieve the string at the given index.
}
// Retrieve the string at the given index.
get(index) {

@@ -151,4 +150,5 @@ invariant(

return this._strings[index];
} // Indexes the string table for fast lookup.
}
// Indexes the string table for fast lookup.
_syncIndexCache() {

@@ -168,3 +168,2 @@ // Because we only grow the string table and we assume it's unique to begin

}
// A cursor pointing to a record-aligned position in a 1D array of N records

@@ -183,10 +182,16 @@ // each with K fields in a fixed order. Supports encoding/decoding field values

// (optional). These are shared with any child iterators.
// The number of fields in every record (i.e. K).
// The raw buffer. Mutable.
// The global string table. Mutable in the ways allowed by the string table
// class.
// The current position in the raw buffer.
constructor(
buffer,
recordFields, // recordTypes can be:
recordFields,
// recordTypes can be:
// 1. An array: Field types as described in the snapshot itself, e.g.

@@ -215,7 +220,7 @@ // node_types, edge_types.

);
if (Array.isArray(recordTypes)) {
this._fieldToType = new Map(
Object.entries(recordTypes).map(([offsetStr, type]) => [
recordFields[Number(offsetStr)], // $FlowIssue[incompatible-call] Object.entries is incompletely typed
recordFields[Number(offsetStr)],
// $FlowIssue[incompatible-call] Object.entries is incompletely typed
type,

@@ -229,3 +234,2 @@ ])

}
this._buffer = buffer;

@@ -243,3 +247,5 @@ this._position = position;

}
/** Public API */
// Reads a scalar string or enum value from the given field.

@@ -249,36 +255,30 @@ // It's an error to read a number (or other non-string) field as a string.

// be read using this method.
getString(field) {
const dynamicValue = this._getScalar(field);
if (typeof dynamicValue === "string") {
return dynamicValue;
}
throw new Error("Not a string or enum field: " + field);
}
throw new Error("Not a string or enum field: " + field);
} // Reads a scalar numeric value from the given field.
// Reads a scalar numeric value from the given field.
// It's an error to read a string (or other non-number) field as a number.
// NOTE: The type "string_or_number" is always treated as a number.
getNumber(field) {
const dynamicValue = this._getScalar(field);
if (typeof dynamicValue === "number") {
return dynamicValue;
}
throw new Error("Not a number field: " + field);
}
throw new Error("Not a number field: " + field);
} // Returns an iterator over the children of this record that are stored in
// Returns an iterator over the children of this record that are stored in
// the given field (typically 'children'). Children conform to the same
// schema as the current record.
getChildren(field) {
const fieldType = this._fieldToType.get(field);
if (fieldType !== CHILDREN_FIELD_TYPE) {
throw new Error("Not a children field: " + field);
}
const childrenBuffer = this._getRaw(field);
invariant(

@@ -290,10 +290,13 @@ Array.isArray(childrenBuffer),

childrenBuffer,
[], // recordFields ignored when there's a parent
null, // recordTypes ignored when there's a parent
[],
// recordFields ignored when there's a parent
null,
// recordTypes ignored when there's a parent
this._globalStringTable,
-this._fieldToOffset.size,
/* start position */
-this._fieldToOffset.size /* start position */,
this
);
} // Writes a scalar string or enum value into the given field, updating the
}
// Writes a scalar string or enum value into the given field, updating the
// global string table as needed.

@@ -305,12 +308,11 @@ // It's an error to write anything other than a string into a string or enum

// be written using this method.
setString(field, value) {
this._setRaw(field, this._encodeString(field, value));
} // Writes a scalar numeric value into the given field.
}
// Writes a scalar numeric value into the given field.
// It's an error to write anything other than a number into a numeric field.
// NOTE: The type "string_or_number" is always treated as a number.
setNumber(field, value) {
const fieldType = this._fieldToType.get(field);
if (

@@ -323,10 +325,12 @@ Array.isArray(fieldType) ||

}
this._setRaw(field, value);
}
this._setRaw(field, value);
} // Moves the cursor to a given index in the buffer (expressed in # of
// Moves the cursor to a given index in the buffer (expressed in # of
// records, NOT fields).
moveToRecord(recordIndex) {
this._moveToPosition(recordIndex * this._recordSize);
} // Appends a new record at the end of the buffer.
}
// Appends a new record at the end of the buffer.
//

@@ -337,6 +341,4 @@ // Returns the index of the appended record. All fields must be specified and

// (or throws).
append(record) {
const savedPosition = this._position;
try {

@@ -347,3 +349,5 @@ return this.moveAndInsert(this._buffer.length / this._recordSize, record);

}
} // Moves the cursor to a given index in the buffer (expressed in # of
}
// Moves the cursor to a given index in the buffer (expressed in # of
// records, NOT fields) and inserts a record.

@@ -359,12 +363,5 @@ //

// edge.to_node -> node position, cumulative node.edge_count -> edge indices).
moveAndInsert(recordIndex, record) {
this._moveToPosition(
recordIndex * this._recordSize,
/* allowEnd */
true
);
this._moveToPosition(recordIndex * this._recordSize, /* allowEnd */ true);
let didResizeBuffer = false;
try {

@@ -377,11 +374,7 @@ for (const field of this._fieldToOffset.keys()) {

}
this._buffer.splice(this._position, 0, ...new Array(this._recordSize));
didResizeBuffer = true;
for (const field of Object.keys(record)) {
this._set(field, record[field]);
}
return this._position / this._recordSize;

@@ -393,10 +386,10 @@ } catch (e) {

}
throw e;
}
}
/** "Protected" methods (please don't use) */
// Return true if we can advance the position by one record (including from
// the last record to the "end" position).
protectedHasNext() {

@@ -407,6 +400,6 @@ if (this._position < 0) {

}
return this._position < this._buffer.length;
} // Move to the next record (or the end) if we're not already at the end.
}
// Move to the next record (or the end) if we're not already at the end.
protectedTryMoveNext() {

@@ -416,31 +409,26 @@ if (this.protectedHasNext()) {

this._position + this._recordSize,
/* allowEnd */
true
/* allowEnd */ true
);
}
}
/** Private methods */
// Reads the raw numeric value of a field.
_getRaw(field) {
this._validatePosition();
const offset = this._fieldToOffset.get(field);
if (offset == null) {
throw new Error("Unknown field: " + field);
}
return this._buffer[this._position + offset];
} // Decodes a scalar (string or number) field.
}
// Decodes a scalar (string or number) field.
_getScalar(field) {
const rawValue = this._getRaw(field);
if (Array.isArray(rawValue)) {
throw new Error("Not a scalar field: " + field);
}
const fieldType = this._fieldToType.get(field);
if (Array.isArray(fieldType)) {

@@ -453,23 +441,20 @@ invariant(

}
if (fieldType === "string") {
return this._globalStringTable.get(rawValue);
}
return rawValue;
} // Writes the raw value of a field.
}
// Writes the raw value of a field.
_setRaw(field, rawValue) {
this._validatePosition();
const offset = this._fieldToOffset.get(field);
if (offset == null) {
throw new Error("Unknown field: " + field);
}
this._buffer[this._position + offset] = rawValue;
}
this._buffer[this._position + offset] = rawValue;
} // Writes a scalar or children value to `field`, inferring the intended type
// Writes a scalar or children value to `field`, inferring the intended type
// based on the runtime type of `value`.
_set(field, value) {

@@ -485,25 +470,22 @@ if (typeof value === "string") {

}
} // Writes a children array to `field` by appending each element of `value` to
}
// Writes a children array to `field` by appending each element of `value` to
// a new buffer using `append()`s semantics.
_setChildren(field, value) {
const fieldType = this._fieldToType.get(field);
if (fieldType !== CHILDREN_FIELD_TYPE) {
throw new Error("Not a children field: " + field);
}
this._setRaw(field, []);
const childIt = this.getChildren(field);
for (const child of value) {
childIt.append(child);
}
} // Encodes a string value according to its field schema.
}
// Encodes a string value according to its field schema.
// The global string table may be updated as a side effect.
_encodeString(field, value) {
const fieldType = this._fieldToType.get(field);
if (Array.isArray(fieldType)) {

@@ -514,12 +496,11 @@ const index = fieldType.indexOf(value);

}
if (fieldType === "string") {
return this._globalStringTable.add(value);
}
throw new Error("Not a string or enum field: " + field);
}
throw new Error("Not a string or enum field: " + field);
} // Asserts that the given position (default: the current position) is either
// Asserts that the given position (default: the current position) is either
// a valid position for reading a record, or (if allowEnd is true) the end of
// the buffer.
_validatePosition(allowEnd = false, position = this._position) {

@@ -529,3 +510,2 @@ if (!Number.isInteger(position)) {

}
if (position % this._recordSize !== 0) {

@@ -536,15 +516,11 @@ throw new Error(

}
if (position < 0) {
throw new Error(`Position ${position} is out of range`);
}
const maxPosition = allowEnd
? this._buffer.length
: this._buffer.length - 1;
if (position > maxPosition) {
throw new Error(`Position ${position} is out of range`);
}
if (this._buffer.length - position < this._recordSize) {

@@ -559,11 +535,12 @@ if (!(allowEnd && this._buffer.length === position)) {

}
} // Move to the given position or throw an error if it is invalid.
}
// Move to the given position or throw an error if it is invalid.
_moveToPosition(nextPosition, allowEnd = false) {
this._validatePosition(allowEnd, nextPosition);
this._position = nextPosition;
}
} // $FlowIssue[prop-missing] Flow doesn't see that we implement the iteration protocol
}
// $FlowIssue[prop-missing] Flow doesn't see that we implement the iteration protocol
class ChromeHeapSnapshotRecordIterator extends ChromeHeapSnapshotRecordAccessor {

@@ -574,3 +551,4 @@ constructor(

recordTypes,
globalStringTable, // Initialise to "before the first iteration".
globalStringTable,
// Initialise to "before the first iteration".
// The Accessor constructor intentionally checks only alignment, not range,

@@ -590,4 +568,5 @@ // so this works as long as we don't try to read/write (at which point

);
} // JS Iterator protocol
}
// JS Iterator protocol
next() {

@@ -599,5 +578,6 @@ this.protectedTryMoveNext();

};
} // JS Iterable protocol
}
// JS Iterable protocol
// $FlowIssue[unsupported-syntax]
[Symbol.iterator]() {

@@ -607,5 +587,4 @@ return this;

}
module.exports = {
ChromeHeapSnapshotProcessor,
};

1

src/index.js
#!/usr/bin/env node
/**

@@ -4,0 +3,0 @@ * Copyright (c) Meta Platforms, Inc. and affiliates.

44

src/SourceMetadataMapConsumer.js

@@ -11,10 +11,8 @@ /**

*/
"use strict";
const { normalizeSourcePath } = require("metro-source-map");
const vlq = require("vlq");
const METADATA_FIELD_FUNCTIONS = 0;
/**

@@ -40,3 +38,2 @@ * Consumes the `x_facebook_sources` metadata field from a source map and

}
/**

@@ -53,3 +50,2 @@ * Retrieves a human-readable name for the function enclosing a particular

const mappings = this._getFunctionMappings(source);
if (mappings) {

@@ -60,3 +56,2 @@ const mapping = findEnclosingMapping(mappings, {

});
if (mapping) {

@@ -67,5 +62,5 @@ return mapping.name;

}
return null;
}
/**

@@ -78,18 +73,14 @@ * Returns this map's source metadata as a new array with the same order as

*/
toArray(sources) {
const metadataBySource = this._getMetadataBySource();
const encoded = [];
for (const source of sources) {
encoded.push(metadataBySource[source] || null);
}
return encoded;
}
/**
* Prepares and caches a lookup table of metadata by source name.
*/
_getMetadataBySource() {

@@ -101,5 +92,5 @@ if (!this._metadataBySource) {

}
return this._metadataBySource;
}
/**

@@ -109,3 +100,2 @@ * Decodes the function name mappings for the given source if needed, and

*/
_getFunctionMappings(source) {

@@ -115,7 +105,5 @@ if (this._decodedFunctionMapCache.has(source)) {

}
let parsedFunctionMap = null;
const metadataBySource = this._getMetadataBySource(); // $FlowFixMe[method-unbinding] added when improving typing for this parameters
const metadataBySource = this._getMetadataBySource();
// $FlowFixMe[method-unbinding] added when improving typing for this parameters
if (Object.prototype.hasOwnProperty.call(metadataBySource, source)) {

@@ -125,7 +113,6 @@ const metadata = metadataBySource[source] || [];

}
this._decodedFunctionMapCache.set(source, parsedFunctionMap);
return parsedFunctionMap;
}
/**

@@ -140,3 +127,2 @@ * Collects source metadata from the given map using the current source name

*/
_getMetadataObjectsBySourceNames(map) {

@@ -153,3 +139,2 @@ // eslint-disable-next-line lint/strictly-null

}
if ("x_facebook_sources" in map) {

@@ -160,3 +145,2 @@ const basicMap = map;

let source = basicMap.sources[index];
if (source != null) {

@@ -166,3 +150,2 @@ source = this._normalizeSource(source, basicMap);

}
return acc;

@@ -173,7 +156,5 @@ },

}
return {};
}
}
function decodeFunctionMap(functionMap) {

@@ -183,10 +164,7 @@ if (!functionMap) {

}
const parsed = [];
let line = 1;
let nameIndex = 0;
for (const lineMappings of functionMap.mappings.split(";")) {
let column = 0;
for (const mapping of lineMappings.split(",")) {

@@ -204,6 +182,4 @@ const [columnDelta, nameDelta, lineDelta = 0] = vlq.decode(mapping);

}
return parsed;
}
function findEnclosingMapping(mappings, target) {

@@ -214,3 +190,2 @@ let first = 0;

let step;
while (count > 0) {

@@ -220,3 +195,2 @@ it = first;

it += step;
if (comparePositions(target, mappings[it]) >= 0) {

@@ -229,6 +203,4 @@ first = ++it;

}
return first ? mappings[first - 1] : null;
}
function comparePositions(a, b) {

@@ -238,6 +210,4 @@ if (a.line === b.line) {

}
return a.line - b.line;
}
module.exports = SourceMetadataMapConsumer;

53

src/symbolicate.js

@@ -11,2 +11,3 @@ /**

*/
// Symbolicates a JavaScript stack trace using a source map.

@@ -19,12 +20,11 @@ // In our first form, we read a stack trace from stdin and symbolicate it via

// optionally a column.
"use strict";
const Symbolication = require("./Symbolication.js");
const fs = require("fs"); // flowlint-next-line untyped-import:off
const SourceMapConsumer = require("source-map").SourceMapConsumer; // flowlint-next-line untyped-import:off
const fs = require("fs");
// flowlint-next-line untyped-import:off
const SourceMapConsumer = require("source-map").SourceMapConsumer;
// flowlint-next-line untyped-import:off
const through2 = require("through2");
function printHelp() {

@@ -51,12 +51,14 @@ const usages = [

}
async function main(
argvInput = process.argv.slice(2), // prettier-ignore
{ stdin, stderr, stdout } = process
argvInput = process.argv.slice(2),
// prettier-ignore
{
stdin,
stderr,
stdout
} = process
) {
const argv = argvInput.slice();
function checkAndRemoveArg(arg, valuesPerArg = 0) {
let values = null;
for (let idx = argv.indexOf(arg); idx !== -1; idx = argv.indexOf(arg)) {

@@ -67,6 +69,4 @@ argv.splice(idx, 1);

}
return values;
}
function checkAndRemoveArgWithValue(arg) {

@@ -76,3 +76,2 @@ const values = checkAndRemoveArg(arg, 1);

}
try {

@@ -98,3 +97,2 @@ const noFunctionNames = checkAndRemoveArg("--no-function-names");

);
if (argv.length < 1 || argv.length > 4) {

@@ -105,3 +103,2 @@ /* eslint no-path-concat: "off" */

}
if (isHermesCrash && isCoverage) {

@@ -113,4 +110,5 @@ console.error(

return 1;
} // Read the source map.
}
// Read the source map.
const sourceMapFileName = argv.shift();

@@ -125,3 +123,2 @@ const options = {

let context;
if (fs.lstatSync(sourceMapFileName).isDirectory()) {

@@ -141,6 +138,4 @@ context = Symbolication.unstable_createDirectoryContext(

}
if (argv.length === 0) {
const stackTrace = await readAll(stdin);
if (isHermesCrash) {

@@ -181,7 +176,5 @@ const stackTraceJSON = JSON.parse(stackTrace);

const lines = buffer.split("\n");
for (let i = 0, e = lines.length - 1; i < e; i++) {
this.push(lines[i]);
}
buffer = lines[lines.length - 1];

@@ -212,6 +205,4 @@ callback();

var _original$source, _original$line, _original$name;
// read-from-argv form.
let moduleIds;
if (argv[0].endsWith(".js")) {

@@ -223,3 +214,2 @@ moduleIds = context.parseFileName(argv[0]);

}
const lineNumber = argv.shift();

@@ -229,3 +219,4 @@ const columnNumber = argv.shift() || 0;

+lineNumber,
+columnNumber, // $FlowFixMe context is a union here and so this parameter is a union
+columnNumber,
// $FlowFixMe context is a union here and so this parameter is a union
moduleIds

@@ -252,10 +243,7 @@ );

}
return 0;
}
function readAll(stream) {
return new Promise((resolve) => {
let data = "";
if (stream.isTTY === true) {

@@ -265,7 +253,6 @@ resolve(data);

}
stream.setEncoding("utf8");
stream.on("readable", () => {
let chunk; // flowlint-next-line sketchy-null-string:off
let chunk;
// flowlint-next-line sketchy-null-string:off
while ((chunk = stream.read())) {

@@ -280,3 +267,2 @@ data += chunk.toString();

}
function waitForStream(stream) {

@@ -287,3 +273,2 @@ return new Promise((resolve) => {

}
module.exports = main;

179

src/Symbolication.js

@@ -13,15 +13,11 @@ "use strict";

*/
// flowlint-next-line untyped-type-import:off
const { ChromeHeapSnapshotProcessor } = require("./ChromeHeapSnapshot");
const SourceMetadataMapConsumer = require("./SourceMetadataMapConsumer");
const fs = require("fs");
const invariant = require("invariant");
const nullthrows = require("nullthrows");
const path = require("path");
const UNKNOWN_MODULE_IDS = {

@@ -31,3 +27,2 @@ segmentId: 0,

};
class SymbolicationContext {

@@ -42,3 +37,2 @@ constructor(options) {

};
if (options) {

@@ -55,3 +49,2 @@ for (const option of [

}
if (options.nameSource != null) {

@@ -62,3 +55,5 @@ // $FlowFixMe[cannot-write]

}
} // parse stack trace with String.replace
}
// parse stack trace with String.replace
// replace the matched part of stack trace to symbolicated result

@@ -73,3 +68,2 @@ // sample stack trace:

// IOS: foo.js:57:foo, Android: bar.js:75:bar
symbolicate(stackTrace) {

@@ -80,3 +74,2 @@ return stackTrace.replace(

var _original$source, _original$line, _original$name;
if (delimiter === ":" && func && !fileName) {

@@ -86,3 +79,2 @@ fileName = func;

}
const original = this.getOriginalPositionFor(

@@ -111,3 +103,5 @@ line,

);
} // Taking in a map like
}
// Taking in a map like
// trampoline offset (optional js function name)

@@ -131,7 +125,5 @@ // JS_0158_xxxxxxxxxxxxxxxxxxxxxx fe 91081

const offset = parseInt(line_list[2], 10);
if (!offset) {
return trampoline + " " + trampoline;
}
const original = this.getOriginalPositionFor(

@@ -151,3 +143,2 @@ this.options.inputLineStart,

}
symbolicateAttribution(obj) {

@@ -164,3 +155,5 @@ const loc = obj.location;

const virtualOffset = Number(loc.virtualOffset);
const bytecodeSize = Number(loc.bytecodeSize); // Functions compiled from Metro-bundled modules will often have a little bit
const bytecodeSize = Number(loc.bytecodeSize);
// Functions compiled from Metro-bundled modules will often have a little bit
// of unmapped wrapper code right at the beginning - which is where we query.

@@ -173,3 +166,2 @@ // Let's attribute them to where the inner module code originates instead.

// happen for function bodies that never throw (generally very short).
while (

@@ -182,3 +174,2 @@ isBytecodeRange &&

}
obj.location = {

@@ -189,14 +180,13 @@ file: original.source,

};
} // Symbolicate chrome trace "stackFrames" section.
}
// Symbolicate chrome trace "stackFrames" section.
// Each frame in it has three fields: name, funcVirtAddr(optional), offset(optional).
// funcVirtAddr and offset are only available if trace is generated from
// hbc bundle without debug info.
symbolicateChromeTrace(traceFile, { stdout, stderr }) {
const content = JSON.parse(fs.readFileSync(traceFile, "utf8"));
if (content.stackFrames == null) {
throw new Error("Unable to locate `stackFrames` section in trace.");
}
const keys = Object.keys(content.stackFrames);

@@ -206,17 +196,16 @@ stdout.write("Processing " + keys.length + " frames\n");

var _addressOriginal$sour, _addressOriginal$line, _addressOriginal$colu;
const entry = content.stackFrames[key];
let line;
let column; // Function entrypoint line/column; used for symbolicating function name
let column;
// Function entrypoint line/column; used for symbolicating function name
// with legacy source maps (or when --no-function-names is set).
let funcLine;
let funcColumn;
if (entry.funcVirtAddr != null && entry.offset != null) {
// Without debug information.
const funcVirtAddr = parseInt(entry.funcVirtAddr, 10);
const offsetInFunction = parseInt(entry.offset, 10); // Main bundle always use hard-coded line value 1.
const offsetInFunction = parseInt(entry.offset, 10);
// Main bundle always use hard-coded line value 1.
// TODO: support multiple bundle/module.
line = this.options.inputLineStart;

@@ -238,12 +227,12 @@ column = funcVirtAddr + offsetInFunction;

return;
} // Symbolicate original file/line/column.
}
// Symbolicate original file/line/column.
const addressOriginal = this.getOriginalPositionDetailsFor(line, column);
let frameName;
if (addressOriginal.functionName) {
frameName = addressOriginal.functionName;
} else {
frameName = entry.name; // Symbolicate function name.
frameName = entry.name;
// Symbolicate function name.
if (funcLine != null && funcColumn != null) {

@@ -254,3 +243,2 @@ const funcOriginal = this.getOriginalPositionFor(

);
if (funcOriginal.name != null) {

@@ -265,4 +253,5 @@ frameName = funcOriginal.name;

}
} // Output format is: funcName(file:line:column)
}
// Output format is: funcName(file:line:column)
entry.name = [

@@ -291,2 +280,3 @@ frameName,

}
/*

@@ -296,3 +286,2 @@ * A helper function to return a mapping {line, column} object for a given input

*/
getOriginalPositionFor(lineNumber, columnNumber, moduleIds) {

@@ -311,2 +300,3 @@ const position = this.getOriginalPositionDetailsFor(

}
/*

@@ -316,6 +306,6 @@ * Symbolicates the JavaScript stack trace extracted from the minidump

*/
symbolicateHermesMinidumpTrace(crashInfo) {
throw new Error("Not implemented");
}
/**

@@ -328,3 +318,2 @@ * Symbolicates heap alloction stacks in a Chrome-formatted heap

*/
symbolicateHeapSnapshot(snapshotContents) {

@@ -336,3 +325,2 @@ const snapshotData =

const processor = new ChromeHeapSnapshotProcessor(snapshotData);
for (const frame of processor.traceFunctionInfos()) {

@@ -342,7 +330,5 @@ const moduleIds = this.parseFileName(frame.getString("script_name"));

const generatedColumn = frame.getNumber("column");
if (generatedLine === 0 && generatedColumn === 0) {
continue;
}
const {

@@ -358,6 +344,4 @@ line: originalLine,

);
if (originalSource != null) {
frame.setString("script_name", originalSource);
if (originalLine != null) {

@@ -371,3 +355,2 @@ frame.setNumber(

}
if (originalColumn != null) {

@@ -382,3 +365,2 @@ frame.setNumber(

}
frame.setString(

@@ -391,5 +373,5 @@ "name",

}
return snapshotData;
}
/*

@@ -399,7 +381,5 @@ * Symbolicates the JavaScript stack trace extracted from the coverage information

*/
symbolicateHermesCoverageTrace(coverageInfo) {
const symbolicatedTrace = [];
const { executedFunctions } = coverageInfo;
if (executedFunctions != null) {

@@ -418,3 +398,2 @@ for (const stackItem of executedFunctions) {

}
return symbolicatedTrace;

@@ -427,7 +406,5 @@ }

*/
getOriginalPositionDetailsFor(lineNumber, columnNumber, moduleIds) {
throw new Error("Not implemented");
}
parseFileName(str) {

@@ -437,6 +414,11 @@ throw new Error("Not implemented");

}
class SingleMapSymbolicationContext extends SymbolicationContext {
// $FlowFixMe[value-as-type]
constructor(SourceMapConsumer, sourceMapContent, options = {}) { // $FlowFixMe[value-as-type]
constructor(
// $FlowFixMe[value-as-type]
SourceMapConsumer,
sourceMapContent,
options = {}
) {
super(options);

@@ -451,12 +433,10 @@ this._SourceMapConsumer = SourceMapConsumer;

};
if (sourceMapJson.x_facebook_segments) {
for (const key of Object.keys(sourceMapJson.x_facebook_segments)) {
// $FlowFixMe[incompatible-use]
const map = sourceMapJson.x_facebook_segments[key]; // $FlowFixMe[prop-missing]
const map = sourceMapJson.x_facebook_segments[key];
// $FlowFixMe[prop-missing]
segments[key] = this._initSegment(map);
}
}
this._legacyFormat =

@@ -466,4 +446,5 @@ sourceMapJson.x_facebook_segments != null ||

this._segments = segments;
} // $FlowFixMe[missing-local-annot]
}
// $FlowFixMe[missing-local-annot]
_initSegment(map) {

@@ -477,9 +458,7 @@ const useFunctionNames = this.options.nameSource === "function_names";

value: new SourceMapConsumer(map),
}); // $FlowFixMe[object-this-reference]
});
// $FlowFixMe[object-this-reference]
return this.consumer;
},
moduleOffsets: map.x_facebook_offsets || [],
get sourceFunctionsConsumer() {

@@ -489,15 +468,12 @@ // $FlowFixMe[object-this-reference]

value: useFunctionNames ? new SourceMetadataMapConsumer(map) : null,
}); // $FlowFixMe[object-this-reference]
});
// $FlowFixMe[object-this-reference]
return this.sourceFunctionsConsumer;
},
hermesOffsets: map.x_hermes_function_offsets,
};
}
symbolicateHermesMinidumpTrace(crashInfo) {
const symbolicatedTrace = [];
const { callstack } = crashInfo;
if (callstack != null) {

@@ -524,6 +500,4 @@ for (const stackItem of callstack) {

cjsModuleOffsetOrSegmentID + this.options.inputLineStart;
const segment =
this._segments[moduleInformation.segmentId.toString()];
const hermesOffsets =

@@ -533,3 +507,2 @@ segment === null || segment === void 0

: segment.hermesOffsets;
if (!hermesOffsets) {

@@ -560,10 +533,7 @@ symbolicatedTrace.push({

}
return symbolicatedTrace;
}
symbolicateHermesCoverageTrace(coverageInfo) {
const symbolicatedTrace = [];
const { executedFunctions } = coverageInfo;
if (executedFunctions != null) {

@@ -582,5 +552,5 @@ for (const stackItem of executedFunctions) {

}
return symbolicatedTrace;
}
/*

@@ -591,3 +561,2 @@ * An internal helper function similar to getOriginalPositionFor. This one

*/
getOriginalPositionDetailsFor(lineNumber, columnNumber, moduleIds) {

@@ -603,14 +572,10 @@ // Adjust arguments to source-map's input coordinates

: columnNumber;
if (!moduleIds) {
moduleIds = UNKNOWN_MODULE_IDS;
}
let moduleLineOffset = 0;
const metadata = this._segments[moduleIds.segmentId + ""];
const { localId } = moduleIds;
if (localId != null) {
const { moduleOffsets } = metadata;
if (!moduleOffsets) {

@@ -622,10 +587,7 @@ throw new Error(

}
if (moduleOffsets[localId] == null) {
throw new Error("Unknown module ID: " + localId);
}
moduleLineOffset = moduleOffsets[localId];
}
const original = metadata.consumer.originalPositionFor({

@@ -635,3 +597,2 @@ line: Number(lineNumber) + moduleLineOffset,

});
if (metadata.sourceFunctionsConsumer) {

@@ -643,3 +604,2 @@ original.functionName =

}
return {

@@ -657,3 +617,2 @@ ...original,

}
parseFileName(str) {

@@ -663,10 +622,14 @@ if (this._legacyFormat) {

}
return UNKNOWN_MODULE_IDS;
}
}
class DirectorySymbolicationContext extends SymbolicationContext {
// $FlowFixMe[value-as-type]
constructor(SourceMapConsumer, rootDir, options = {}) { // $FlowFixMe[value-as-type]
constructor(
// $FlowFixMe[value-as-type]
SourceMapConsumer,
rootDir,
options = {}
) {
super(options);

@@ -677,3 +640,2 @@ this._fileMaps = new Map();

}
_loadMap(mapFilename) {

@@ -684,5 +646,3 @@ invariant(

);
let fileMap = this._fileMaps.get(mapFilename);
if (fileMap == null) {

@@ -694,8 +654,7 @@ fileMap = new SingleMapSymbolicationContext(

);
this._fileMaps.set(mapFilename, fileMap);
}
return fileMap;
}
/*

@@ -706,3 +665,2 @@ * An internal helper function similar to getOriginalPositionFor. This one

*/
getOriginalPositionDetailsFor(lineNumber, columnNumber, filename) {

@@ -717,8 +675,7 @@ invariant(

path.resolve(this._rootDir, filename)
); // Lock down access to files outside the root dir.
);
// Lock down access to files outside the root dir.
if (!relativeFilename.startsWith("..")) {
mapFilename = path.join(this._rootDir, relativeFilename + ".map");
}
if (mapFilename == null || !fs.existsSync(mapFilename)) {

@@ -746,3 +703,2 @@ // Adjust arguments to the output coordinates

}
return this._loadMap(mapFilename).getOriginalPositionDetailsFor(

@@ -753,3 +709,2 @@ lineNumber,

}
parseFileName(str) {

@@ -759,2 +714,3 @@ return str;

}
/*

@@ -770,6 +726,4 @@ * If the file name of a stack frame is numeric (+ ".js"), we assume it's a

*/
function parseSingleMapFileName(str) {
const modMatch = str.match(/^(\d+).js$/);
if (modMatch != null) {

@@ -781,5 +735,3 @@ return {

}
const segMatch = str.match(/^seg-(\d+)(?:_(\d+))?.js$/);
if (segMatch != null) {

@@ -791,7 +743,10 @@ return {

}
return UNKNOWN_MODULE_IDS;
}
function createContext(SourceMapConsumer, sourceMapContent, options = {}) { // $FlowFixMe[value-as-type]
function createContext(
// $FlowFixMe[value-as-type]
SourceMapConsumer,
sourceMapContent,
options = {}
) {
return new SingleMapSymbolicationContext(

@@ -803,4 +758,4 @@ SourceMapConsumer,

}
function unstable_createDirectoryContext( // $FlowFixMe[value-as-type]
function unstable_createDirectoryContext(
// $FlowFixMe[value-as-type]
SourceMapConsumer,

@@ -812,19 +767,14 @@ rootDir,

}
function getOriginalPositionFor(lineNumber, columnNumber, moduleIds, context) {
return context.getOriginalPositionFor(lineNumber, columnNumber, moduleIds);
}
function symbolicate(stackTrace, context) {
return context.symbolicate(stackTrace);
}
function symbolicateProfilerMap(mapFile, context) {
return context.symbolicateProfilerMap(mapFile);
}
function symbolicateAttribution(obj, context) {
context.symbolicateAttribution(obj);
}
function symbolicateChromeTrace(traceFile, { stdout, stderr }, context) {

@@ -836,3 +786,2 @@ return context.symbolicateChromeTrace(traceFile, {

}
module.exports = {

@@ -839,0 +788,0 @@ createContext,

src/ChromeHeapSnapshot.js.flow

Sorry, the diff of this file is not supported yet

src/symbolicate.js.flow

Sorry, the diff of this file is not supported yet

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