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Stdlib extensions #4709

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12 changes: 11 additions & 1 deletion compiler/compiler.go
Original file line number Diff line number Diff line change
Expand Up @@ -464,8 +464,13 @@ func (c *compilerContext) makeLLVMType(goType types.Type) llvm.Type {
members[i] = c.getLLVMType(typ.At(i).Type())
}
return c.ctx.StructType(members, false)
//case *types.Alias:
// if typ.Obj().Name() == "any" && typ.Obj().Parent() == types.Universe {
// return c.getLLVMRuntimeType("_interface")
// }
// panic("unknown object type: " + goType.String())
default:
panic("unknown type: " + goType.String())
panic(fmt.Sprintf("unknown type: %s %T", goType.String(), typ))
}
}

Expand Down Expand Up @@ -659,6 +664,11 @@ func (c *compilerContext) createDIType(typ types.Type) llvm.Metadata {
return md
case *types.TypeParam:
return c.getDIType(typ.Underlying())
//case *types.Alias:
// if typ.Obj().Name() == "any" && typ.Obj().Parent() == types.Universe {
// return c.getDIType(c.program.ImportedPackage("runtime").Members["_interface"].(*ssa.Type).Type())
// }
// panic("unknown object while generating DWARF debug type: " + typ.String())
default:
panic("unknown type while generating DWARF debug type: " + typ.String())
}
Expand Down
149 changes: 149 additions & 0 deletions src/os/byteorder.go
Original file line number Diff line number Diff line change
@@ -0,0 +1,149 @@
// Copyright 2024 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.

// Package byteorder provides functions for decoding and encoding
// little and big endian integer types from/to byte slices.
package os

func LEUint16(b []byte) uint16 {
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint16(b[0]) | uint16(b[1])<<8
}

func LEPutUint16(b []byte, v uint16) {
_ = b[1] // early bounds check to guarantee safety of writes below
b[0] = byte(v)
b[1] = byte(v >> 8)
}

func LEAppendUint16(b []byte, v uint16) []byte {
return append(b,
byte(v),
byte(v>>8),
)
}

func LEUint32(b []byte) uint32 {
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint32(b[0]) | uint32(b[1])<<8 | uint32(b[2])<<16 | uint32(b[3])<<24
}

func LEPutUint32(b []byte, v uint32) {
_ = b[3] // early bounds check to guarantee safety of writes below
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
}

func LEAppendUint32(b []byte, v uint32) []byte {
return append(b,
byte(v),
byte(v>>8),
byte(v>>16),
byte(v>>24),
)
}

func LEUint64(b []byte) uint64 {
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
}

func LEPutUint64(b []byte, v uint64) {
_ = b[7] // early bounds check to guarantee safety of writes below
b[0] = byte(v)
b[1] = byte(v >> 8)
b[2] = byte(v >> 16)
b[3] = byte(v >> 24)
b[4] = byte(v >> 32)
b[5] = byte(v >> 40)
b[6] = byte(v >> 48)
b[7] = byte(v >> 56)
}

func LEAppendUint64(b []byte, v uint64) []byte {
return append(b,
byte(v),
byte(v>>8),
byte(v>>16),
byte(v>>24),
byte(v>>32),
byte(v>>40),
byte(v>>48),
byte(v>>56),
)
}

func BEUint16(b []byte) uint16 {
_ = b[1] // bounds check hint to compiler; see golang.org/issue/14808
return uint16(b[1]) | uint16(b[0])<<8
}

func BEPutUint16(b []byte, v uint16) {
_ = b[1] // early bounds check to guarantee safety of writes below
b[0] = byte(v >> 8)
b[1] = byte(v)
}

func BEAppendUint16(b []byte, v uint16) []byte {
return append(b,
byte(v>>8),
byte(v),
)
}

func BEUint32(b []byte) uint32 {
_ = b[3] // bounds check hint to compiler; see golang.org/issue/14808
return uint32(b[3]) | uint32(b[2])<<8 | uint32(b[1])<<16 | uint32(b[0])<<24
}

func BEPutUint32(b []byte, v uint32) {
_ = b[3] // early bounds check to guarantee safety of writes below
b[0] = byte(v >> 24)
b[1] = byte(v >> 16)
b[2] = byte(v >> 8)
b[3] = byte(v)
}

func BEAppendUint32(b []byte, v uint32) []byte {
return append(b,
byte(v>>24),
byte(v>>16),
byte(v>>8),
byte(v),
)
}

func BEUint64(b []byte) uint64 {
_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
return uint64(b[7]) | uint64(b[6])<<8 | uint64(b[5])<<16 | uint64(b[4])<<24 |
uint64(b[3])<<32 | uint64(b[2])<<40 | uint64(b[1])<<48 | uint64(b[0])<<56
}

func BEPutUint64(b []byte, v uint64) {
_ = b[7] // early bounds check to guarantee safety of writes below
b[0] = byte(v >> 56)
b[1] = byte(v >> 48)
b[2] = byte(v >> 40)
b[3] = byte(v >> 32)
b[4] = byte(v >> 24)
b[5] = byte(v >> 16)
b[6] = byte(v >> 8)
b[7] = byte(v)
}

func BEAppendUint64(b []byte, v uint64) []byte {
return append(b,
byte(v>>56),
byte(v>>48),
byte(v>>40),
byte(v>>32),
byte(v>>24),
byte(v>>16),
byte(v>>8),
byte(v),
)
}
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