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revmoed some old cruft

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This commit is contained in:
Steve Yegge
2025-11-04 22:52:04 -08:00
parent 019c34029f
commit b9edb8f8a2
6 changed files with 0 additions and 931 deletions
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239
NEXT_SESSION.md
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# Next Session: Complete bd-d19a (Fix Import Failure on Missing Parents)
## Current Status
**Branch**: `fix/import-missing-parents`
**Epic**: bd-d19a (P0 - Critical)
**Progress**: Phase 1 & 2 Complete ✅
### Completed Work
#### Phase 1: Topological Sorting ✅
- **Commit**: `f2cb91d`
- **What**: Added depth-based sorting to `importer.go` to ensure parents are created before children
- **Files**: `internal/importer/importer.go`
- **Result**: Fixes latent ordering bug where parent-child pairs in same batch could fail
#### Phase 2: Parent Resurrection ✅
- **Commit**: `b41d65d`
- **Implemented Issues**:
- bd-cc4f: `TryResurrectParent` function
- bd-d76d: Modified `EnsureIDs` to call resurrection
- bd-02a4: Modified `CreateIssue` to call resurrection
- **Files Created**: `internal/storage/sqlite/resurrection.go`
- **Files Modified**:
- `internal/storage/sqlite/ids.go`
- `internal/storage/sqlite/sqlite.go`
- `internal/storage/sqlite/batch_ops.go`
- `internal/storage/sqlite/batch_ops_test.go`
**How Resurrection Works**:
1. When child issue has missing parent, search `.beads/issues.jsonl` for parent in git history
2. If found, create tombstone issue (status=closed, priority=4)
3. Tombstone preserves original title, type, created_at
4. Description marked with `[RESURRECTED]` prefix + original description
5. Dependencies copied if targets exist
6. Recursively handles entire parent chains (e.g., `bd-abc.1.2` → resurrects both `bd-abc` and `bd-abc.1`)
---
## Next Steps: Phase 3 - Testing & Documentation
### 1. Add Comprehensive Tests
**Create**: `internal/storage/sqlite/resurrection_test.go`
**Test Cases Needed**:
- ✅ Parent exists → no resurrection needed
- ✅ Parent found in JSONL → successful resurrection
- ✅ Parent not in JSONL → proper error message
- ✅ Multi-level chain (`bd-abc.1.2`) → resurrects entire chain
- ✅ JSONL file missing → graceful failure
- ✅ Malformed JSONL lines → skip with warning
- ✅ Dependencies preserved → only if targets exist
- ✅ Tombstone properties → correct status, priority, description format
- ✅ Concurrent resurrection → idempotent behavior
**Integration Test**:
Add to `beads_integration_test.go`:
```go
TestImportWithDeletedParent
- Create parent and child
- Delete parent
- Export to JSONL (preserves parent in git)
- Clear DB
- Import from JSONL
- Verify: parent resurrected as tombstone, child imported successfully
```
### 2. Update Documentation
**Files to Update**:
1. `README.md` - Add resurrection behavior to import section
2. `QUICKSTART.md` - Mention parent resurrection for multi-repo workflows
3. `docs/import-bug-analysis-bd-3xq.md` - Add "Implementation Complete" section
4. `AGENTS.md` - Document resurrection for AI agents
**Example Addition to README.md**:
```markdown
## Parent Resurrection
When importing issues with hierarchical IDs (e.g., `bd-abc.1`), bd automatically
resurrects deleted parent issues from git history to maintain referential integrity.
Resurrected parents are created as tombstones:
- Status: `closed`
- Priority: 4 (lowest)
- Description: `[RESURRECTED]` prefix + original description
This enables multi-repo workflows where different clones may delete different issues.
```
### 3. Manual Testing Workflow
```bash
# Terminal 1: Create test scenario
cd /tmp/bd-test
git init
bd init --prefix test --quiet
bd create "Parent epic" -t epic -p 1 --json # Returns test-abc123
bd create "Child task" -p 1 --json # Auto-creates test-abc123.1
# Verify hierarchy
bd dep tree test-abc123
# Delete parent (simulating normal database hygiene)
bd delete test-abc123 --force
# Export state (child exists, parent deleted)
bd export -o backup.jsonl
# Simulate fresh clone
rm -rf .beads/beads.db
bd init --prefix test --quiet
# Import - should resurrect parent as tombstone
bd import -i backup.jsonl
# Verify resurrection
bd show test-abc123 --json | grep -i resurrected
bd show test-abc123.1 --json # Should exist
bd dep tree test-abc123 # Should show full tree
```
### 4. Edge Cases to Handle
**Potential Issues**:
1. **JSONL path detection**: Currently assumes `.beads/issues.jsonl` - verify works with symlinks, worktrees
2. **Performance**: Large JSONL files (10k+ issues) - may need optimization (indexing?)
3. **Memory**: Scanner buffer is 1MB - test with very large issue descriptions
4. **Concurrent access**: Multiple processes resurrecting same parent simultaneously
**Optimizations to Consider** (Future work):
- Build in-memory index of JSONL on first resurrection call (cache for session)
- Use `grep` or `ripgrep` for fast ID lookup before JSON parsing
- Add resurrection stats to import summary (`Resurrected: 3 parents`)
### 5. Create Pull Request
Once testing complete:
```bash
# Update CHANGELOG.md
# Add entry under "Unreleased"
# Create PR
gh pr create \
--title "Fix import failure on missing parent issues (bd-d19a)" \
--body "Implements topological sorting + parent resurrection.
Fixes #XXX (if there's a GitHub issue)
## Changes
- Phase 1: Topological sorting for import ordering
- Phase 2: Parent resurrection from JSONL history
- Creates tombstones for deleted parents to preserve hierarchical structure
## Testing
- [x] Unit tests for resurrection logic
- [x] Integration test for deleted parent scenario
- [x] Manual testing with multi-level hierarchies
See docs/import-bug-analysis-bd-3xq.md for full design rationale."
```
---
## Commands for Next Session
```bash
# Resume work
cd /Users/stevey/src/dave/beads
git checkout fix/import-missing-parents
# Run existing tests
go test ./internal/storage/sqlite -v -run Resurrection
# Create new test file
# (See test template above)
# Run integration tests
go test -v -run TestImport
# Manual testing
# (See workflow above)
# When ready to merge
git checkout main
git merge fix/import-missing-parents
git push origin main
```
---
## Issues Tracking
**Epic**: bd-d19a (Fix import failure on missing parent issues) - **OPEN**
**Subtasks**:
- bd-cc4f: Implement TryResurrectParent - **DONE** ✅
- bd-d76d: Modify EnsureIDs - **DONE** ✅
- bd-02a4: Modify CreateIssue - **DONE** ✅
- **TODO**: Create test issue for Phase 3
- **TODO**: Create docs issue for Phase 3
**Files Modified**:
- ✅ `internal/importer/importer.go` (topological sorting)
- ✅ `internal/storage/sqlite/resurrection.go` (new file)
- ✅ `internal/storage/sqlite/ids.go`
- ✅ `internal/storage/sqlite/sqlite.go`
- ✅ `internal/storage/sqlite/batch_ops.go`
- ✅ `internal/storage/sqlite/batch_ops_test.go`
- ⏳ `internal/storage/sqlite/resurrection_test.go` (TODO)
- ⏳ `beads_integration_test.go` (TODO - add import test)
- ⏳ `README.md` (TODO - document resurrection)
- ⏳ `AGENTS.md` (TODO - document for AI agents)
---
## Key Design Decisions
1. **Tombstone Status**: Using `closed` (not a new "deleted" status) to avoid schema changes
2. **Search Strategy**: Linear scan of JSONL (acceptable for <10k issues, can optimize later)
3. **Idempotency**: `TryResurrectParent` checks existence first, safe to call multiple times
4. **Recursion**: `TryResurrectParentChain` handles multi-level hierarchies automatically
5. **Dependencies**: Best-effort resurrection (logs warnings, doesn't fail if targets missing)
---
## Reference Documents
- **Design Doc**: `docs/import-bug-analysis-bd-3xq.md` (comprehensive analysis)
- **Current Branch**: `fix/import-missing-parents`
- **GitHub PR URL**: (To be created)
- **Related Issues**: bd-4ms (multi-repo support), bd-a101 (separate branch workflow)
---
**Status**: Ready for Phase 3 (Testing & Documentation)
**Estimate**: 2-3 hours for comprehensive tests + 1 hour for docs
**Risk**: Low - core logic implemented and builds successfully

79
test_two_repo_sync.sh
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#!/bin/bash
# Test daemon auto-import after git pull (bd-09b5f2f5)
# This verifies the critical data corruption fix
set -e
TMPDIR=$(mktemp -d)
trap "rm -rf $TMPDIR" EXIT
echo "=== Setting up test environment ==="
cd $TMPDIR
# Create origin repo
mkdir origin && cd origin
git init --bare
cd $TMPDIR
# Clone repo A
git clone origin repoA
cd repoA
git config user.name "Test User A"
git config user.email "test-a@example.com"
# Initialize bd in repo A
echo "=== Initializing bd in repo A ==="
bd init --prefix test --quiet
bd create "Initial issue" -p 1 -d "Created in repo A" --json
# Commit and push (use master as default branch)
git add .
git commit -m "Initial commit with bd"
git push origin master
cd $TMPDIR
# Clone repo B
echo "=== Cloning repo B ==="
git clone origin repoB
cd repoB
git config user.name "Test User B"
git config user.email "test-b@example.com"
# Initialize bd in repo B (import from JSONL)
echo "=== Initializing bd in repo B ==="
bd init --prefix test --quiet
# Verify repo B can read the issue
echo "=== Verifying repo B sees initial issue ==="
ISSUE_ID=$(bd list --json | jq -r '.[0].id')
echo "Found issue: $ISSUE_ID"
# In repo A: Update the issue
cd $TMPDIR/repoA
echo "=== Repo A: Updating issue status ==="
bd update $ISSUE_ID --status in_progress --json
bd sync # Force immediate export/commit/push
# Wait for export to flush
sleep 2
# In repo B: Pull and verify daemon auto-imports
cd $TMPDIR/repoB
echo "=== Repo B: Pulling changes ==="
git pull
# Check if daemon auto-imports (should see updated status)
echo "=== Repo B: Checking if daemon auto-imported ==="
STATUS=$(bd show $ISSUE_ID --json | jq -r '.[0].status')
if [ "$STATUS" == "in_progress" ]; then
echo "✅ SUCCESS: Daemon auto-imported! Status is 'in_progress' as expected"
exit 0
else
echo "❌ FAIL: Daemon did NOT auto-import. Status is '$STATUS', expected 'in_progress'"
echo ""
echo "This indicates bd-09b5f2f5 regression - daemon serving stale data"
exit 1
fi

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wasm/bd.wasm
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wasm/build.sh
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#!/bin/bash
# Build bd for WebAssembly
set -e
echo "Building bd for WASM..."
GOOS=js GOARCH=wasm go build -o wasm/bd.wasm ./cmd/bd
echo "WASM build complete: wasm/bd.wasm"
ls -lh wasm/bd.wasm

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wasm/run.js
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#!/usr/bin/env node
// Node.js wrapper for bd.wasm
const fs = require('fs');
const path = require('path');
// Load wasm_exec.js from Go distribution
require('./wasm_exec.js');
// Load the WASM binary
const wasmPath = path.join(__dirname, 'bd.wasm');
const wasmBuffer = fs.readFileSync(wasmPath);
// Create Go runtime instance
const go = new Go();
// Pass command-line arguments to Go
// process.argv[0] is 'node', process.argv[1] is this script
// So we want process.argv.slice(1) to simulate: bd <args>
go.argv = ['bd'].concat(process.argv.slice(2));
// Instantiate and run the WASM module
WebAssembly.instantiate(wasmBuffer, go.importObject).then((result) => {
go.run(result.instance);
}).catch((err) => {
console.error('Failed to run WASM:', err);
process.exit(1);
});

575
wasm/wasm_exec.js
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@@ -1,575 +0,0 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
"use strict";
(() => {
const enosys = () => {
const err = new Error("not implemented");
err.code = "ENOSYS";
return err;
};
if (!globalThis.fs) {
let outputBuf = "";
globalThis.fs = {
constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1, O_DIRECTORY: -1 }, // unused
writeSync(fd, buf) {
outputBuf += decoder.decode(buf);
const nl = outputBuf.lastIndexOf("\n");
if (nl != -1) {
console.log(outputBuf.substring(0, nl));
outputBuf = outputBuf.substring(nl + 1);
}
return buf.length;
},
write(fd, buf, offset, length, position, callback) {
if (offset !== 0 || length !== buf.length || position !== null) {
callback(enosys());
return;
}
const n = this.writeSync(fd, buf);
callback(null, n);
},
chmod(path, mode, callback) { callback(enosys()); },
chown(path, uid, gid, callback) { callback(enosys()); },
close(fd, callback) { callback(enosys()); },
fchmod(fd, mode, callback) { callback(enosys()); },
fchown(fd, uid, gid, callback) { callback(enosys()); },
fstat(fd, callback) { callback(enosys()); },
fsync(fd, callback) { callback(null); },
ftruncate(fd, length, callback) { callback(enosys()); },
lchown(path, uid, gid, callback) { callback(enosys()); },
link(path, link, callback) { callback(enosys()); },
lstat(path, callback) { callback(enosys()); },
mkdir(path, perm, callback) { callback(enosys()); },
open(path, flags, mode, callback) { callback(enosys()); },
read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
readdir(path, callback) { callback(enosys()); },
readlink(path, callback) { callback(enosys()); },
rename(from, to, callback) { callback(enosys()); },
rmdir(path, callback) { callback(enosys()); },
stat(path, callback) { callback(enosys()); },
symlink(path, link, callback) { callback(enosys()); },
truncate(path, length, callback) { callback(enosys()); },
unlink(path, callback) { callback(enosys()); },
utimes(path, atime, mtime, callback) { callback(enosys()); },
};
}
if (!globalThis.process) {
globalThis.process = {
getuid() { return -1; },
getgid() { return -1; },
geteuid() { return -1; },
getegid() { return -1; },
getgroups() { throw enosys(); },
pid: -1,
ppid: -1,
umask() { throw enosys(); },
cwd() { throw enosys(); },
chdir() { throw enosys(); },
}
}
if (!globalThis.path) {
globalThis.path = {
resolve(...pathSegments) {
return pathSegments.join("/");
}
}
}
if (!globalThis.crypto) {
throw new Error("globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)");
}
if (!globalThis.performance) {
throw new Error("globalThis.performance is not available, polyfill required (performance.now only)");
}
if (!globalThis.TextEncoder) {
throw new Error("globalThis.TextEncoder is not available, polyfill required");
}
if (!globalThis.TextDecoder) {
throw new Error("globalThis.TextDecoder is not available, polyfill required");
}
const encoder = new TextEncoder("utf-8");
const decoder = new TextDecoder("utf-8");
globalThis.Go = class {
constructor() {
this.argv = ["js"];
this.env = {};
this.exit = (code) => {
if (code !== 0) {
console.warn("exit code:", code);
}
};
this._exitPromise = new Promise((resolve) => {
this._resolveExitPromise = resolve;
});
this._pendingEvent = null;
this._scheduledTimeouts = new Map();
this._nextCallbackTimeoutID = 1;
const setInt64 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
}
const setInt32 = (addr, v) => {
this.mem.setUint32(addr + 0, v, true);
}
const getInt64 = (addr) => {
const low = this.mem.getUint32(addr + 0, true);
const high = this.mem.getInt32(addr + 4, true);
return low + high * 4294967296;
}
const loadValue = (addr) => {
const f = this.mem.getFloat64(addr, true);
if (f === 0) {
return undefined;
}
if (!isNaN(f)) {
return f;
}
const id = this.mem.getUint32(addr, true);
return this._values[id];
}
const storeValue = (addr, v) => {
const nanHead = 0x7FF80000;
if (typeof v === "number" && v !== 0) {
if (isNaN(v)) {
this.mem.setUint32(addr + 4, nanHead, true);
this.mem.setUint32(addr, 0, true);
return;
}
this.mem.setFloat64(addr, v, true);
return;
}
if (v === undefined) {
this.mem.setFloat64(addr, 0, true);
return;
}
let id = this._ids.get(v);
if (id === undefined) {
id = this._idPool.pop();
if (id === undefined) {
id = this._values.length;
}
this._values[id] = v;
this._goRefCounts[id] = 0;
this._ids.set(v, id);
}
this._goRefCounts[id]++;
let typeFlag = 0;
switch (typeof v) {
case "object":
if (v !== null) {
typeFlag = 1;
}
break;
case "string":
typeFlag = 2;
break;
case "symbol":
typeFlag = 3;
break;
case "function":
typeFlag = 4;
break;
}
this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
this.mem.setUint32(addr, id, true);
}
const loadSlice = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
return new Uint8Array(this._inst.exports.mem.buffer, array, len);
}
const loadSliceOfValues = (addr) => {
const array = getInt64(addr + 0);
const len = getInt64(addr + 8);
const a = new Array(len);
for (let i = 0; i < len; i++) {
a[i] = loadValue(array + i * 8);
}
return a;
}
const loadString = (addr) => {
const saddr = getInt64(addr + 0);
const len = getInt64(addr + 8);
return decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));
}
const testCallExport = (a, b) => {
this._inst.exports.testExport0();
return this._inst.exports.testExport(a, b);
}
const timeOrigin = Date.now() - performance.now();
this.importObject = {
_gotest: {
add: (a, b) => a + b,
callExport: testCallExport,
},
gojs: {
// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)
// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported
// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).
// This changes the SP, thus we have to update the SP used by the imported function.
// func wasmExit(code int32)
"runtime.wasmExit": (sp) => {
sp >>>= 0;
const code = this.mem.getInt32(sp + 8, true);
this.exited = true;
delete this._inst;
delete this._values;
delete this._goRefCounts;
delete this._ids;
delete this._idPool;
this.exit(code);
},
// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)
"runtime.wasmWrite": (sp) => {
sp >>>= 0;
const fd = getInt64(sp + 8);
const p = getInt64(sp + 16);
const n = this.mem.getInt32(sp + 24, true);
fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
},
// func resetMemoryDataView()
"runtime.resetMemoryDataView": (sp) => {
sp >>>= 0;
this.mem = new DataView(this._inst.exports.mem.buffer);
},
// func nanotime1() int64
"runtime.nanotime1": (sp) => {
sp >>>= 0;
setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
},
// func walltime() (sec int64, nsec int32)
"runtime.walltime": (sp) => {
sp >>>= 0;
const msec = (new Date).getTime();
setInt64(sp + 8, msec / 1000);
this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
},
// func scheduleTimeoutEvent(delay int64) int32
"runtime.scheduleTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this._nextCallbackTimeoutID;
this._nextCallbackTimeoutID++;
this._scheduledTimeouts.set(id, setTimeout(
() => {
this._resume();
while (this._scheduledTimeouts.has(id)) {
// for some reason Go failed to register the timeout event, log and try again
// (temporary workaround for https://github.com/golang/go/issues/28975)
console.warn("scheduleTimeoutEvent: missed timeout event");
this._resume();
}
},
getInt64(sp + 8),
));
this.mem.setInt32(sp + 16, id, true);
},
// func clearTimeoutEvent(id int32)
"runtime.clearTimeoutEvent": (sp) => {
sp >>>= 0;
const id = this.mem.getInt32(sp + 8, true);
clearTimeout(this._scheduledTimeouts.get(id));
this._scheduledTimeouts.delete(id);
},
// func getRandomData(r []byte)
"runtime.getRandomData": (sp) => {
sp >>>= 0;
crypto.getRandomValues(loadSlice(sp + 8));
},
// func finalizeRef(v ref)
"syscall/js.finalizeRef": (sp) => {
sp >>>= 0;
const id = this.mem.getUint32(sp + 8, true);
this._goRefCounts[id]--;
if (this._goRefCounts[id] === 0) {
const v = this._values[id];
this._values[id] = null;
this._ids.delete(v);
this._idPool.push(id);
}
},
// func stringVal(value string) ref
"syscall/js.stringVal": (sp) => {
sp >>>= 0;
storeValue(sp + 24, loadString(sp + 8));
},
// func valueGet(v ref, p string) ref
"syscall/js.valueGet": (sp) => {
sp >>>= 0;
const result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 32, result);
},
// func valueSet(v ref, p string, x ref)
"syscall/js.valueSet": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));
},
// func valueDelete(v ref, p string)
"syscall/js.valueDelete": (sp) => {
sp >>>= 0;
Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
},
// func valueIndex(v ref, i int) ref
"syscall/js.valueIndex": (sp) => {
sp >>>= 0;
storeValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));
},
// valueSetIndex(v ref, i int, x ref)
"syscall/js.valueSetIndex": (sp) => {
sp >>>= 0;
Reflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));
},
// func valueCall(v ref, m string, args []ref) (ref, bool)
"syscall/js.valueCall": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const m = Reflect.get(v, loadString(sp + 16));
const args = loadSliceOfValues(sp + 32);
const result = Reflect.apply(m, v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, result);
this.mem.setUint8(sp + 64, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 56, err);
this.mem.setUint8(sp + 64, 0);
}
},
// func valueInvoke(v ref, args []ref) (ref, bool)
"syscall/js.valueInvoke": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.apply(v, undefined, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueNew(v ref, args []ref) (ref, bool)
"syscall/js.valueNew": (sp) => {
sp >>>= 0;
try {
const v = loadValue(sp + 8);
const args = loadSliceOfValues(sp + 16);
const result = Reflect.construct(v, args);
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, result);
this.mem.setUint8(sp + 48, 1);
} catch (err) {
sp = this._inst.exports.getsp() >>> 0; // see comment above
storeValue(sp + 40, err);
this.mem.setUint8(sp + 48, 0);
}
},
// func valueLength(v ref) int
"syscall/js.valueLength": (sp) => {
sp >>>= 0;
setInt64(sp + 16, parseInt(loadValue(sp + 8).length));
},
// valuePrepareString(v ref) (ref, int)
"syscall/js.valuePrepareString": (sp) => {
sp >>>= 0;
const str = encoder.encode(String(loadValue(sp + 8)));
storeValue(sp + 16, str);
setInt64(sp + 24, str.length);
},
// valueLoadString(v ref, b []byte)
"syscall/js.valueLoadString": (sp) => {
sp >>>= 0;
const str = loadValue(sp + 8);
loadSlice(sp + 16).set(str);
},
// func valueInstanceOf(v ref, t ref) bool
"syscall/js.valueInstanceOf": (sp) => {
sp >>>= 0;
this.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);
},
// func copyBytesToGo(dst []byte, src ref) (int, bool)
"syscall/js.copyBytesToGo": (sp) => {
sp >>>= 0;
const dst = loadSlice(sp + 8);
const src = loadValue(sp + 32);
if (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
// func copyBytesToJS(dst ref, src []byte) (int, bool)
"syscall/js.copyBytesToJS": (sp) => {
sp >>>= 0;
const dst = loadValue(sp + 8);
const src = loadSlice(sp + 16);
if (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {
this.mem.setUint8(sp + 48, 0);
return;
}
const toCopy = src.subarray(0, dst.length);
dst.set(toCopy);
setInt64(sp + 40, toCopy.length);
this.mem.setUint8(sp + 48, 1);
},
"debug": (value) => {
console.log(value);
},
}
};
}
async run(instance) {
if (!(instance instanceof WebAssembly.Instance)) {
throw new Error("Go.run: WebAssembly.Instance expected");
}
this._inst = instance;
this.mem = new DataView(this._inst.exports.mem.buffer);
this._values = [ // JS values that Go currently has references to, indexed by reference id
NaN,
0,
null,
true,
false,
globalThis,
this,
];
this._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id
this._ids = new Map([ // mapping from JS values to reference ids
[0, 1],
[null, 2],
[true, 3],
[false, 4],
[globalThis, 5],
[this, 6],
]);
this._idPool = []; // unused ids that have been garbage collected
this.exited = false; // whether the Go program has exited
// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
let offset = 4096;
const strPtr = (str) => {
const ptr = offset;
const bytes = encoder.encode(str + "\0");
new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
offset += bytes.length;
if (offset % 8 !== 0) {
offset += 8 - (offset % 8);
}
return ptr;
};
const argc = this.argv.length;
const argvPtrs = [];
this.argv.forEach((arg) => {
argvPtrs.push(strPtr(arg));
});
argvPtrs.push(0);
const keys = Object.keys(this.env).sort();
keys.forEach((key) => {
argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
});
argvPtrs.push(0);
const argv = offset;
argvPtrs.forEach((ptr) => {
this.mem.setUint32(offset, ptr, true);
this.mem.setUint32(offset + 4, 0, true);
offset += 8;
});
// The linker guarantees global data starts from at least wasmMinDataAddr.
// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.
const wasmMinDataAddr = 4096 + 8192;
if (offset >= wasmMinDataAddr) {
throw new Error("total length of command line and environment variables exceeds limit");
}
this._inst.exports.run(argc, argv);
if (this.exited) {
this._resolveExitPromise();
}
await this._exitPromise;
}
_resume() {
if (this.exited) {
throw new Error("Go program has already exited");
}
this._inst.exports.resume();
if (this.exited) {
this._resolveExitPromise();
}
}
_makeFuncWrapper(id) {
const go = this;
return function () {
const event = { id: id, this: this, args: arguments };
go._pendingEvent = event;
go._resume();
return event.result;
};
}
}
})();