Packages supported by TinyGo

The following table shows all Go standard library packages and whether they can be imported by TinyGo. If they can’t, you can click the ’no’ link to jump to the explanation why the package cannot be compiled.

Note that the fact they can be imported, does not mean that all functions and types in the program can be used. For example, sometimes using some functions or types of the package will still trigger compiler errors.

Test results are for linux/amd64.

Package Importable Passes tests
archive/tar ✔ yes ✗ no
archive/zip ✔ yes ✔ yes
bufio ✔ yes ✗ no
bytes ✔ yes ✗ no
cmp ✔ yes ✔ yes
compress/bzip2 ✔ yes ✔ yes
compress/flate ✔ yes ✔ yes
compress/gzip ✔ yes ✗ no
compress/lzw ✔ yes ✔ yes
compress/zlib ✔ yes ✔ yes
container/heap ✔ yes ✔ yes
container/list ✔ yes ✔ yes
container/ring ✔ yes ✔ yes
context ✔ yes ✔ yes
crypto ✔ yes ✗ no
crypto/aes ✔ yes ✔ yes
crypto/cipher ✔ yes ✗ no
crypto/des ✔ yes ✔ yes
crypto/dsa ✔ yes ✔ yes
crypto/ecdh ✔ yes ✗ no
crypto/ecdsa ✔ yes ✔ yes
crypto/ed25519 ✔ yes ✗ no
crypto/elliptic ✔ yes ✔ yes
crypto/hmac ✔ yes ✔ yes
crypto/md5 ✔ yes ✔ yes
crypto/rand ✔ yes ✔ yes
crypto/rc4 ✔ yes ✔ yes
crypto/rsa ✔ yes ✗ no
crypto/sha1 ✔ yes ✔ yes
crypto/sha256 ✔ yes ✔ yes
crypto/sha512 ✔ yes ✔ yes
crypto/subtle ✔ yes ✗ no
crypto/tls ✔ yes ✔ yes
crypto/x509 ✔ yes ✗ no
crypto/x509/pkix ✔ yes ✔ yes
database/sql ✔ yes ✗ no
database/sql/driver ✔ yes ✔ yes
debug/buildinfo ✗ no ✗ no
debug/dwarf ✔ yes ✔ yes
debug/elf ✔ yes ✗ no
debug/gosym ✔ yes ✗ no
debug/macho ✔ yes ✔ yes
debug/pe ✔ yes ✗ no
debug/plan9obj ✔ yes ✔ yes
embed ✔ yes ✔ yes
encoding ✔ yes ✔ yes
encoding/ascii85 ✔ yes ✔ yes
encoding/asn1 ✔ yes ✔ yes
encoding/base32 ✔ yes ✔ yes
encoding/base64 ✔ yes ✔ yes
encoding/binary ✔ yes ✗ no
encoding/csv ✔ yes ✔ yes
encoding/gob ✔ yes ✗ no
encoding/hex ✔ yes ✔ yes
encoding/json ✔ yes ✗ no
encoding/pem ✔ yes ✗ no
encoding/xml ✔ yes ✗ no
errors ✔ yes ✗ no
expvar ✗ no ✗ no
flag ✔ yes ✗ no
fmt ✔ yes ✗ no
go/ast ✔ yes ✔ yes
go/build ✔ yes ✗ no
go/build/constraint ✔ yes ✔ yes
go/constant ✔ yes ✗ no
go/doc ✔ yes ✗ no
go/doc/comment ✔ yes ✗ no
go/format ✔ yes ✔ yes
go/importer ✔ yes ✗ no
go/parser ✔ yes ✗ no
go/printer ✔ yes ✔ yes
go/scanner ✔ yes ✔ yes
go/token ✔ yes ✗ no
go/types ✔ yes ✗ no
go/version ✔ yes ✔ yes
hash ✔ yes ✔ yes
hash/adler32 ✔ yes ✔ yes
hash/crc32 ✔ yes ✗ no
hash/crc64 ✔ yes ✔ yes
hash/fnv ✔ yes ✔ yes
hash/maphash ✔ yes ✗ no
html ✔ yes ✔ yes
html/template ✔ yes ✗ no
image ✔ yes ✔ yes
image/color ✔ yes ✗ no
image/color/palette ✔ yes ✔ yes
image/draw ✔ yes ✗ no
image/gif ✔ yes ✗ no
image/jpeg ✔ yes ✗ no
image/png ✔ yes ✗ no
index/suffixarray ✔ yes ✔ yes
io ✔ yes ✗ no
io/fs ✔ yes ✗ no
io/ioutil ✔ yes ✔ yes
iter ✔ yes ✗ no
log ✔ yes ✗ no
log/slog ✔ yes ✗ no
log/syslog ✔ yes ✗ no
maps ✔ yes ✗ no
math ✔ yes ✔ yes
math/big ✔ yes ✗ no
math/bits ✔ yes ✗ no
math/cmplx ✔ yes ✔ yes
math/rand ✔ yes ✗ no
math/rand/v2 ✔ yes ✗ no
mime ✔ yes ✔ yes
mime/multipart ✔ yes ✔ yes
mime/quotedprintable ✔ yes ✔ yes
net ✔ yes ✔ yes
net/http ✗ no ✗ no
net/http/cgi ✗ no ✗ no
net/http/cookiejar ✗ no ✗ no
net/http/fcgi ✗ no ✗ no
net/http/httptest ✗ no ✗ no
net/http/httptrace ✗ no ✗ no
net/http/httputil ✗ no ✗ no
net/http/pprof ✗ no ✗ no
net/mail ✔ yes ✔ yes
net/netip ✔ yes ✗ no
net/rpc ✗ no ✗ no
net/rpc/jsonrpc ✗ no ✗ no
net/smtp ✗ no ✗ no
net/textproto ✔ yes ✔ yes
net/url ✔ yes ✗ no
os ✔ yes ✔ yes
os/exec ✔ yes ✗ no
os/signal ✔ yes ✗ no
os/user ✔ yes ✔ yes
path ✔ yes ✔ yes
path/filepath ✔ yes ✗ no
plugin ✗ no ✗ no
reflect ✔ yes ✔ yes
regexp ✔ yes ✗ no
regexp/syntax ✔ yes ✔ yes
slices ✔ yes ✗ no
sort ✔ yes ✗ no
strconv ✔ yes ✔ yes
strings ✔ yes ✗ no
structs ✔ yes ✔ yes
sync ✔ yes ✔ yes
sync/atomic ✔ yes ✗ no
syscall ✔ yes ✗ no
testing ✔ yes ✔ yes
testing/fstest ✔ yes ✗ no
testing/iotest ✔ yes ✔ yes
testing/quick ✔ yes ✗ no
testing/slogtest ✔ yes ✗ no
text/scanner ✔ yes ✔ yes
text/tabwriter ✔ yes ✔ yes
text/template ✔ yes ✗ no
text/template/parse ✔ yes ✔ yes
time ✔ yes ✗ no
time/tzdata ✗ no ✗ no
unicode ✔ yes ✔ yes
unicode/utf16 ✔ yes ✔ yes
unicode/utf8 ✔ yes ✔ yes
unique ✔ yes ✔ yes
unsafe ✔ yes ✔ yes

archive/tar

The compiler gave the following error when running the tests for this package:

[tinygo: panic at <Go interface method>]
panic: runtime error at 0x000000000026eae5: nil pointer dereference
FAIL	archive/tar	0.269s

bufio

The compiler gave the following error when running the tests for this package:

--- FAIL: TestReadStringAllocs (0.00s)
    Unexpected number of allocations, got 0.000000, want 1
FAIL
FAIL	bufio	0.130s

bytes

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/Development/tinygo/tinygo-122/src/internal/bytealg/bytealg.go:304:13]
panic: runtime error at 0x000000000022d209: out of memory
FAIL	bytes	5.732s

compress/gzip

The compiler gave the following error when running the tests for this package:

FAIL		0.000s
/home/ron/.gvm/gos/go1.23/src/compress/gzip/example_test.go:14:2: package net/http/httptest is not in std (/home/ron/.cache/tinygo/goroot-8dfa52493353b482ef2f92e428ccd70087bafb9ea49be4487874c40c866336de/src/net/http/httptest)

crypto

The compiler gave the following error when running the tests for this package:

panic: runtime error at 0x000000000028df55: index out of range
FAIL	crypto	0.004s

crypto/cipher

The compiler gave the following error when running the tests for this package:

--- FAIL: TestGCMAsm (0.31s)
    no assembly implementation of GCM
    SkipNow is incomplete, requires runtime.Goexit()
FAIL
FAIL	crypto/cipher	0.311s

crypto/ecdh

The compiler gave the following error when running the tests for this package:

--- FAIL: TestLinker (0.00s)
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    platform cannot run go tool
    FailNow is incomplete, requires runtime.Goexit()
    [ build -o hello.exe hello.go]: exec: no command
    FailNow is incomplete, requires runtime.Goexit()
    [./hello.exe]: fork/exec ./hello.exe: operation not implemented
    FailNow is incomplete, requires runtime.Goexit()
    unexpected output: 
    [ tool nm hello.exe]: exec: no command
    FailNow is incomplete, requires runtime.Goexit()
    no P384 symbols found in program using ecdh.P384, test is broken
[...more lines following...]

crypto/ed25519

The compiler gave the following error when running the tests for this package:

--- FAIL: TestEd25519Vectors (0.00s)
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    platform cannot run go tool
    FailNow is incomplete, requires runtime.Goexit()
    failed to run `go mod download -json filippo.io/mostly-harmless/ed25519vectors@v0.0.0-20210322192420-30a2d7243a94`, output: 
    FailNow is incomplete, requires runtime.Goexit()
    unexpected end of JSON input
    FailNow is incomplete, requires runtime.Goexit()
    failed to read ed25519vectors.json: open ed25519vectors.json: file does not exist
    FailNow is incomplete, requires runtime.Goexit()
    unexpected end of JSON input
    FailNow is incomplete, requires runtime.Goexit()
FAIL
FAIL	crypto/ed25519	0.208s
[...more lines following...]

crypto/rsa

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumOut()
FAIL	crypto/rsa	0.034s

crypto/subtle

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumIn()
FAIL	crypto/subtle	0.001s

crypto/x509

The compiler gave the following error when running the tests for this package:

FAIL	crypto/x509	0.000s
# crypto/x509_test
/home/ron/.gvm/gos/go1.23/src/crypto/x509/hybrid_pool_test.go:63:17: c.ConnectionState undefined (type *net.TLSConn has no field or method ConnectionState)

database/sql

The compiler gave the following error when running the tests for this package:

FAIL	database/sql	0.000s
# database/sql
/home/ron/.gvm/gos/go1.23/src/database/sql/sql_test.go:4804:4: b.SetParallelism undefined (type *testing.B has no field or method SetParallelism)

debug/buildinfo

The compiler gave the following error when this package was imported:

# debug/buildinfo
/home/ron/.gvm/gos/go1.23/src/debug/buildinfo/buildinfo.go:89:19: undefined: debug.ParseBuildInfo

debug/elf

The compiler gave the following error when running the tests for this package:

FAIL	debug/elf	0.000s
# debug/elf
/home/ron/.gvm/gos/go1.23/src/debug/elf/file_test.go:1159:10: undefined: net.ResolveIPAddr

debug/gosym

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/debug/elf/file.go]
panic: runtime error at 0x000000000025bf84: nil pointer dereference
FAIL	debug/gosym	0.003s

debug/pe

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/debug/pe/file_test.go]
panic: runtime error at 0x0000000000275b0d: index out of range
FAIL	debug/pe	0.004s

encoding/binary

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/encoding/binary/binary.go:109:7]
panic: runtime error at 0x000000000024bf78: index out of range
FAIL	encoding/binary	0.005s

encoding/gob

The compiler gave the following error when running the tests for this package:

panic: reflect: unimplemented: AssignableTo with interface
FAIL	encoding/gob	0.000s

encoding/json

The compiler gave the following error when running the tests for this package:

FAIL		0.000s
/home/ron/.gvm/gos/go1.23/src/encoding/json/stream_test.go:14:2: package net/http/httptest is not in std (/home/ron/.cache/tinygo/goroot-8dfa52493353b482ef2f92e428ccd70087bafb9ea49be4487874c40c866336de/src/net/http/httptest)

encoding/pem

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumOut()
FAIL	encoding/pem	1.549s

encoding/xml

The compiler gave the following error when running the tests for this package:

FAIL	encoding/xml	0.022s

errors

The compiler gave the following error when running the tests for this package:

--- FAIL: TestAs (0.00s)
    --- FAIL: TestAs/8:As(Errorf(...,_err),_0x78b942e17bd0) (0.00s)
        match: got true; want false
        FailNow is incomplete, requires runtime.Goexit()
        got &errors.errorString{s:"err"}, want <nil>
        FailNow is incomplete, requires runtime.Goexit()
    --- FAIL: TestAs/10:As(Errorf(...,_path_error),_0x78b942e17bd0) (0.00s)
        got errors_test.wrapped{msg:"path error", err:(*fs.PathError)(0x78b942e17c30)}, want &fs.PathError{Op:"open", Path:"non-existing", Err:(*errors.errorString)(0x253968)}
        FailNow is incomplete, requires runtime.Goexit()
    --- FAIL: TestAs/16:As(Errorf(...,_multiError),_0x78b942e17bd0) (0.00s)
        got errors_test.multiErr{errors_test.wrapped{msg:"path error", err:(*fs.PathError)(0x78b942e17c30)}}, want &fs.PathError{Op:"open", Path:"non-existing", Err:(*errors.errorString)(0x253968)}
        FailNow is incomplete, requires runtime.Goexit()
FAIL
FAIL	errors	0.001s

expvar

This package cannot be imported because the following dependencies cannot be compiled:

flag

The compiler gave the following error when running the tests for this package:

--- FAIL: TestExitCode (0.00s)
    unexpected exit code for test case {flag:-h flagHandle: expectExit:0} 
        : got -1, expect 0
    unexpected exit code for test case {flag:-help flagHandle: expectExit:0} 
        : got -1, expect 0
    unexpected exit code for test case {flag:-undefined flagHandle: expectExit:2} 
        : got -1, expect 2
    unexpected exit code for test case {flag:-h flagHandle:h expectExit:123} 
        : got -1, expect 123
    unexpected exit code for test case {flag:-help flagHandle:help expectExit:123} 
        : got -1, expect 123
--- FAIL: TestDefineAfterSet (0.00s)
    DefineAfterSet
        : expected panic("flag myFlag set at .*/flag_test.go:.* before being defined"), but got panic("flag myFlag set at ?:0 before being defined")
FAIL
[...more lines following...]

fmt

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/Development/tinygo/tinygo-122/src/reflect/type.go:507:11]
panic: runtime error at 0x0000000000228ecc: nil pointer dereference
FAIL	fmt	0.003s

go/build

The compiler gave the following error when running the tests for this package:

--- FAIL: TestDotSlashImport (0.01s)
    import ".": unknown compiler "tinygo"
    FailNow is incomplete, requires runtime.Goexit()
    import "./file": unknown compiler "tinygo"
    FailNow is incomplete, requires runtime.Goexit()
--- FAIL: TestLocalDirectory (0.00s)
    import ".": unknown compiler "tinygo"
    FailNow is incomplete, requires runtime.Goexit()
    ImportPath=".", want "go/build"
    FailNow is incomplete, requires runtime.Goexit()
--- FAIL: TestImportCmd (0.00s)
    go/build: go list cmd/internal/objfile: fork/exec /usr/local/go/bin/go: operation not implemented
        
        
    FailNow is incomplete, requires runtime.Goexit()
[...more lines following...]

go/constant

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/go/constant/value.go]
panic: runtime error at 0x00000000002549e8: divide by zero
FAIL	go/constant	0.004s

go/doc

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumOut()
FAIL	go/doc	0.000s

go/doc/comment

The compiler gave the following error when running the tests for this package:

--- FAIL: TestStd (0.00s)
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    platform cannot run go tool
    FailNow is incomplete, requires runtime.Goexit()
    exec: no command
    FailNow is incomplete, requires runtime.Goexit()
    stdPkgs is out of date: regenerate with 'go generate'
        diff stdPkgs want
        --- stdPkgs
        +++ want
        @@ -1,39 +1,1 @@
        -bufio
        -bytes
        -cmp
[...more lines following...]

go/importer

The compiler gave the following error when running the tests for this package:

[tinygo: panic at <Go interface method>]
panic: runtime error at 0x0000000000320e41: nil pointer dereference
FAIL	go/importer	0.006s

go/parser

The compiler gave the following error when running the tests for this package:

FAIL	go/parser	0.092s

go/token

The compiler gave the following error when running the tests for this package:

panic: reflect: unimplemented: AssignableTo with interface
FAIL	go/token	0.001s

go/types

The compiler gave the following error when running the tests for this package:

FAIL	go/types	0.000s
# go/types_test
/home/ron/.gvm/gos/go1.23/src/go/types/self_test.go:103:4: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)

hash/crc32

The compiler gave the following error when running the tests for this package:

panic: not available
FAIL	hash/crc32	0.012s

hash/maphash

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/Development/tinygo/tinygo-122/src/runtime/slice.go:50:14]
panic: runtime error at 0x0000000000224be8: out of memory
FAIL	hash/maphash	30.162s

html/template

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumOut()
FAIL	html/template	0.002s

image/color

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumIn()
FAIL	image/color	0.000s

image/draw

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumIn()
FAIL	image/draw	0.033s

image/gif

The compiler gave the following error when running the tests for this package:

FAIL	image/gif	0.000s
# image/gif
/home/ron/.gvm/gos/go1.23/src/image/gif/reader_test.go:422:26: s1.HeapAlloc undefined (type *runtime.MemStats has no field or method HeapAlloc)
/home/ron/.gvm/gos/go1.23/src/image/gif/reader_test.go:422:41: s0.HeapAlloc undefined (type *runtime.MemStats has no field or method HeapAlloc)

image/jpeg

The compiler gave the following error when running the tests for this package:

FAIL	image/jpeg	0.000s
# image/jpeg
/home/ron/.gvm/gos/go1.23/src/image/jpeg/reader_test.go:253:9: undefined: debug.SetTraceback

image/png

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/image/png/reader.go:506:12]
panic: runtime error at 0x0000000000259314: out of memory
FAIL	image/png	0.880s

io

The compiler gave the following error when running the tests for this package:

--- FAIL: TestMultiWriter_WriteStringSingleAlloc (0.00s)
    num allocations = 0; want 1
--- FAIL: TestMultiWriterSingleChainFlatten (0.00s)
    multiWriter did not flatten chained multiWriters: expected writeDepth 12, got 4
--- FAIL: TestMultiReaderFlatten (0.00s)
    multiReader did not flatten chained multiReaders: expected readDepth 3, got 1
--- FAIL: TestMultiReaderFreesExhaustedReaders (5.00s)
    timeout waiting for collection of buf1
    FailNow is incomplete, requires runtime.Goexit()
FAIL
FAIL	io	5.053s

io/fs

The compiler gave the following error when running the tests for this package:

FAIL	io/fs	0.003s

iter

The compiler gave the following error when running the tests for this package:

FAIL	iter	0.000s
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:251: linker could not find symbol runtime.newcoro
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:267: linker could not find symbol runtime.coroswitch
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:297: linker could not find symbol runtime.coroswitch
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:317: linker could not find symbol runtime.coroswitch
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:367: linker could not find symbol runtime.newcoro
/home/ron/.gvm/gos/go1.23/src/iter/iter.go:367: linker could not find symbol runtime.newcoro

log

The compiler gave the following error when running the tests for this package:

--- FAIL: TestAll (0.00s)
    log output should match "^.*/[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^.*/[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "???:0: hello 23 world"
    log output should match "^XXX[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] .*/[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "XXX2024/08/22 20:03:20.722555 ???:0: hello 23 world"
    log output should match "^XXX[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] .*/[A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "XXX2024/08/22 20:03:20.722586 ???:0: hello 23 world"
    log output should match "^XXX[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] [A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "XXX2024/08/22 20:03:20.722990 ???:0: hello 23 world"
    log output should match "^XXX[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] [A-Za-z0-9_\\-]+\\.go:(63|65): hello 23 world$" is "XXX2024/08/22 20:03:20.723033 ???:0: hello 23 world"
    log output should match "^[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] .*/[A-Za-z0-9_\\-]+\\.go:(63|65): XXXhello 23 world$" is "2024/08/22 20:03:20.723067 ???:0: XXXhello 23 world"
    log output should match "^[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] .*/[A-Za-z0-9_\\-]+\\.go:(63|65): XXXhello 23 world$" is "2024/08/22 20:03:20.723497 ???:0: XXXhello 23 world"
    log output should match "^[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] [A-Za-z0-9_\\-]+\\.go:(63|65): XXXhello 23 world$" is "2024/08/22 20:03:20.723537 ???:0: XXXhello 23 world"
    log output should match "^[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9] [0-9][0-9]:[0-9][0-9]:[0-9][0-9]\\.[0-9][0-9][0-9][0-9][0-9][0-9] [A-Za-z0-9_\\-]+\\.go:(63|65): XXXhello 23 world$" is "2024/08/22 20:03:20.723951 ???:0: XXXhello 23 world"
[...more lines following...]

log/slog

The compiler gave the following error when running the tests for this package:

panic: runtime.Caller failed
FAIL	log/slog	0.000s

log/syslog

The compiler gave the following error when running the tests for this package:

FAIL	log/syslog	0.000s
# log/syslog
/home/ron/.gvm/gos/go1.23/src/log/syslog/syslog_test.go:35:21: oe.Temporary undefined (type *net.OpError has no field or method Temporary)
/home/ron/.gvm/gos/go1.23/src/log/syslog/syslog_test.go:110:15: undefined: net.ListenPacket

maps

The compiler gave the following error when running the tests for this package:

FAIL	maps	0.000s
/home/ron/.gvm/gos/go1.23/src/maps/maps.go:55: linker could not find symbol maps.clone
/home/ron/.gvm/gos/go1.23/src/maps/maps.go:55: linker could not find symbol maps.clone

math/big

The compiler gave the following error when running the tests for this package:

FAIL	math/big	0.000s
# math/big
/home/ron/.gvm/gos/go1.23/src/math/bits/bits.go:472:10: interp: running for more than 3m0s, timing out (executed calls: 28856372)
  %0 = and i64 %x, 4294967295, !dbg !30909

traceback:
/home/ron/.gvm/gos/go1.23/src/math/bits/bits.go:472:10:
  %0 = and i64 %x, 4294967295, !dbg !30909
/home/ron/.gvm/gos/go1.23/src/math/bits/bits.go:450:15:
  %9 = call { i64, i64 } @"math/bits.Mul64"(i64 %x, i64 %y, ptr undef), !dbg !30917
/home/ron/.gvm/gos/go1.23/src/math/big/arith.go:51:20:
  %0 = call { i64, i64 } @"math/bits.Mul"(i64 %x, i64 %y, ptr undef), !dbg !30904
/home/ron/.gvm/gos/go1.23/src/math/big/arith.go:192:24:
  %13 = call { i64, i64 } @"math/big.mulAddWWW_g"(i64 %12, i64 %y, i64 %6, ptr undef), !dbg !30922
/home/ron/.gvm/gos/go1.23/src/math/big/arith_decl_pure.go:44:20:
[...more lines following...]

math/bits

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/math/bits/bits.go:510:21]
panic: runtime error at 0x000000000021dde5: divide by zero
FAIL	math/bits	0.002s

math/rand

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).Method()
FAIL	math/rand	1.890s

math/rand/v2

The compiler gave the following error when running the tests for this package:

FAIL	math/rand/v2	0.000s
/home/ron/.gvm/gos/go1.23/src/internal/chacha8rand/chacha8.go:66: linker could not find symbol internal/chacha8rand.block
/home/ron/.gvm/gos/go1.23/src/internal/chacha8rand/chacha8.go:91: linker could not find symbol internal/chacha8rand.block
/home/ron/.gvm/gos/go1.23/src/internal/chacha8rand/chacha8.go:153: linker could not find symbol internal/chacha8rand.block

net/http

This package cannot be imported because the following dependencies cannot be compiled:

net/http/cgi

This package cannot be imported because the following dependencies cannot be compiled:

net/http/cookiejar

This package cannot be imported because the following dependencies cannot be compiled:

net/http/fcgi

This package cannot be imported because the following dependencies cannot be compiled:

net/http/httptest

This package cannot be imported because the following dependencies cannot be compiled:

net/http/httptrace

The compiler gave the following error when this package was imported:

../../../../../tmp/tinygo-test-713677031/main.go:2:8: package net/http/httptrace is not in std (/home/ron/.cache/tinygo/goroot-8dfa52493353b482ef2f92e428ccd70087bafb9ea49be4487874c40c866336de/src/net/http/httptrace)

net/http/httputil

This package cannot be imported because the following dependencies cannot be compiled:

net/http/pprof

This package cannot be imported because the following dependencies cannot be compiled:

net/netip

The compiler gave the following error when running the tests for this package:

--- FAIL: TestInlining (0.00s)
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    skipping test: 'go build' unavailable: /home/ron/.gvm/gos/go1.23/bin/go tool -n compile: fork/exec /home/ron/.gvm/gos/go1.23/bin/go: operation not implemented
    SkipNow is incomplete, requires runtime.Goexit()
    platform cannot run go tool
    FailNow is incomplete, requires runtime.Goexit()
    go build: exec: no command, 
    FailNow is incomplete, requires runtime.Goexit()
    "(*uint128).halves" is no longer inlinable
    "Addr.BitLen" is no longer inlinable
    "Addr.hasZone" is no longer inlinable
    "Addr.Is4" is no longer inlinable
    "Addr.Is4In6" is no longer inlinable
    "Addr.Is6" is no longer inlinable
[...more lines following...]

net/rpc

This package cannot be imported because the following dependencies cannot be compiled:

net/rpc/jsonrpc

This package cannot be imported because the following dependencies cannot be compiled:

net/smtp

The compiler gave the following error when this package was imported:

# net/smtp
/home/ron/.gvm/gos/go1.23/src/net/smtp/smtp.go:72:24: undefined: tls.Conn
/home/ron/.gvm/gos/go1.23/src/net/smtp/smtp.go:172:25: undefined: tls.Conn

net/url

The compiler gave the following error when running the tests for this package:

panic: reflect: unimplemented: AssignableTo with interface
FAIL	net/url	0.001s

os/exec

The compiler gave the following error when running the tests for this package:

FAIL		0.000s
/home/ron/.gvm/gos/go1.23/src/os/exec/exec_test.go:23:2: package net/http/httptest is not in std (/home/ron/.cache/tinygo/goroot-8dfa52493353b482ef2f92e428ccd70087bafb9ea49be4487874c40c866336de/src/net/http/httptest)

os/signal

The compiler gave the following error when running the tests for this package:

FAIL	os/signal	0.000s
# internal/testpty
/home/ron/.gvm/gos/go1.23/src/internal/testpty/pty_cgo.go:11:10: note: in file included from pty_cgo.go!cgo.c:4:
../../tinygo/tinygo-122/lib/musl/include/fcntl.h:22:10: fatal: 'bits/fcntl.h' file not found

path/filepath

The compiler gave the following error when running the tests for this package:

FAIL	path/filepath	0.002s

plugin

The compiler gave the following error when this package was imported:

# plugin
/home/ron/.gvm/gos/go1.23/src/plugin/plugin_dlopen.go:10:6: not implemented: build constraints in #cgo line

regexp

The compiler gave the following error when running the tests for this package:

FAIL	regexp	2.220s

slices

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/slices/slices.go]
panic: runtime error at 0x000000000027fd24: slice out of range
FAIL	slices	0.007s

sort

The compiler gave the following error when running the tests for this package:

--- FAIL: TestCountStableOps (1.06s)
    Counting skipped as non-verbose mode.
    SkipNow is incomplete, requires runtime.Goexit()
    Stable      100 elements:         936 Swap,        803 Less
    Stable      300 elements:        4036 Swap,       3116 Less
    Stable     1000 elements:       19431 Swap,      12165 Less
    Stable     3000 elements:       82543 Swap,      43007 Less
    Stable    10000 elements:      348377 Swap,     165656 Less
    Stable    30000 elements:     1341022 Swap,     558390 Less
    Stable   100000 elements:     5786769 Swap,    2084974 Less
    Stable   300000 elements:    20452019 Swap,    6869316 Less
    Stable  1000000 elements:    84471267 Swap,   25121542 Less
--- FAIL: TestCountSortOps (0.61s)
    Counting skipped as non-verbose mode.
    SkipNow is incomplete, requires runtime.Goexit()
[...more lines following...]

strings

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/Development/tinygo/tinygo-122/src/internal/bytealg/bytealg.go:304:13]
panic: runtime error at 0x000000000022b226: out of memory
FAIL	strings	8.086s

sync/atomic

The compiler gave the following error when running the tests for this package:

[tinygo: panic at /home/ron/.gvm/gos/go1.23/src/sync/atomic/doc.go:94:6]
panic: runtime error at 0x00000000002502e8: caught signal SIGSEGV
FAIL	sync/atomic	0.939s

syscall

The compiler gave the following error when running the tests for this package:

FAIL	syscall	0.000s
# syscall_test
/home/ron/.gvm/gos/go1.23/src/syscall/creds_test.go:53:19: undefined: net.FileConn
/home/ron/.gvm/gos/go1.23/src/syscall/creds_test.go:60:19: undefined: net.FileConn
/home/ron/.gvm/gos/go1.23/src/syscall/exec_linux_test.go:712:14: f.Chmod undefined (type *os.File has no field or method Chmod)
/home/ron/.gvm/gos/go1.23/src/syscall/syscall_unix_test.go:183:16: undefined: net.FileConn
/home/ron/.gvm/gos/go1.23/src/syscall/syscall_unix_test.go:238:14: undefined: net.UnixConn
/home/ron/.gvm/gos/go1.23/src/syscall/syscall_unix_test.go:242:18: undefined: net.FileConn

testing/fstest

The compiler gave the following error when running the tests for this package:

[tinygo: panic at <Go interface method>]
panic: runtime error at 0x000000000022291a: nil pointer dereference
FAIL	testing/fstest	0.007s

testing/quick

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumIn()
FAIL	testing/quick	0.001s

testing/slogtest

The compiler gave the following error when running the tests for this package:

panic: runtime.Caller failed
FAIL	testing/slogtest	0.000s

text/template

The compiler gave the following error when running the tests for this package:

panic: unimplemented: (reflect.Type).NumOut()
FAIL	text/template	0.001s

time

The compiler gave the following error when running the tests for this package:

FAIL	time	0.000s
# time_test
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:866:4: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:867:4: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:868:4: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:939:8: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:940:8: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)
/home/ron/.gvm/gos/go1.23/src/time/sleep_test.go:941:8: b.ReportMetric undefined (type *testing.B has no field or method ReportMetric)

time/tzdata

The compiler gave the following error when this package was imported:

/home/ron/Development/tinygo/tinygo-122/src/runtime/scheduler_any.go:24: linker could not find symbol time.registerLoadFromEmbeddedTZData
Last modified August 22, 2024: content: update lang-support info for TinyGo 0.33 with Go 1.23 (d7455a6)