mirror of
https://github.com/tinygo-org/tinygo.git
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compiler: include type information about the runtime in the compiler
These types are often known to the compiler already. Moving them into
the compiler is an important step for two related reasons:
* It makes the compiler better testable. Together with
https://github.com/tinygo-org/tinygo/pull/1008 it will make it
possible to test the compiler without having to load the runtime
package.
* It makes it easier to compile packages independently as the type
information of the runtime package doesn't need to be present.
I had to use hack to get this to work well: internal/task.Task is now an
opaque struct. This is necessary because there is a dependency from
*runtime.channel -> *runtime.channelBlockedList -> *internal/task.Task.
I don't want to include the definition of the internal/task.Task struct
in the compiler directly as that would make changing the internal/task
package a lot harder and the compiler doesn't need to know the layout of
that struct anyway.
This commit is contained in:
Ayke van Laethem
@@ -0,0 +1,377 @@
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// Autogenerated by mkruntimetypes.go, DO NOT EDIT.
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package compiler
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// This file contains definitions for runtime types and functions, so that the
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// runtime package can be compiled independently of other packages.
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import (
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"go/token"
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"go/types"
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"strconv"
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)
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// getRuntimeType constructs a new runtime type with the given name. The types
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// constructed here must match the types in the runtime package.
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func (c *compilerContext) getRuntimeType(name string) types.Type {
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if c.program != nil {
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return c.program.ImportedPackage("runtime").Type(name).Type()
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}
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if typ, ok := c.runtimeTypes[name]; ok {
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// This type was already created.
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return typ
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}
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typeName := types.NewTypeName(token.NoPos, c.runtimePkg, name, nil)
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named := types.NewNamed(typeName, nil, nil)
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// Make sure recursive types are only defined once.
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c.runtimeTypes[name] = named
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var fieldTypes []types.Type
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switch name {
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case "_defer":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // callback
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types.NewPointer(named), // next
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}
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case "_string":
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fieldTypes = []types.Type{
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types.NewPointer(types.Typ[types.Byte]), // ptr
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types.Typ[types.Uintptr], // length
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}
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case "stringIterator":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // byteindex
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}
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case "hashmap":
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fieldTypes = []types.Type{
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types.NewPointer(named), // next
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types.Typ[types.UnsafePointer], // buckets
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types.Typ[types.Uintptr], // count
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types.Typ[types.Uint8], // keySize
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types.Typ[types.Uint8], // valueSize
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types.Typ[types.Uint8], // bucketBits
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}
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case "hashmapBucket":
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fieldTypes = []types.Type{
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types.NewArray(types.Typ[types.Uint8], 8), // tophash
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types.NewPointer(named), // next
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}
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case "hashmapIterator":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // bucketNumber
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types.NewPointer(c.getRuntimeType("hashmapBucket")), // bucket
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types.Typ[types.Uint8], // bucketIndex
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}
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case "channel":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // elementSize
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types.Typ[types.Uintptr], // bufSize
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types.Typ[types.Uint8], // state
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types.NewPointer(c.getRuntimeType("channelBlockedList")), // blocked
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types.Typ[types.Uintptr], // bufHead
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types.Typ[types.Uintptr], // bufTail
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types.Typ[types.Uintptr], // bufUsed
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types.Typ[types.UnsafePointer], // buf
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}
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case "channelBlockedList":
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taskType := types.NewNamed(types.NewTypeName(token.NoPos, c.taskPkg, "Task", nil), nil, nil)
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fieldTypes = []types.Type{
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types.NewPointer(named), // next
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types.NewPointer(taskType), // t
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types.NewPointer(c.getRuntimeType("chanSelectState")), // s
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types.NewSlice(named), // allSelectOps
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}
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case "chanSelectState":
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fieldTypes = []types.Type{
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types.NewPointer(c.getRuntimeType("channel")), // ch
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types.Typ[types.UnsafePointer], // value
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}
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case "_interface":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // typecode
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types.Typ[types.UnsafePointer], // value
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}
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case "interfaceMethodInfo":
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fieldTypes = []types.Type{
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types.NewPointer(types.Typ[types.Uint8]), // signature
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types.Typ[types.Uintptr], // funcptr
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}
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case "typecodeID":
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fieldTypes = []types.Type{
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types.NewPointer(named), // references
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types.Typ[types.Uintptr], // length
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}
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case "structField":
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fieldTypes = []types.Type{
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types.NewPointer(c.getRuntimeType("typecodeID")), // typecode
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types.NewPointer(types.Typ[types.Uint8]), // name
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types.NewPointer(types.Typ[types.Uint8]), // tag
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types.Typ[types.Bool], // embedded
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}
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case "typeInInterface":
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fieldTypes = []types.Type{
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types.NewPointer(c.getRuntimeType("typecodeID")), // typecode
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types.NewPointer(c.getRuntimeType("interfaceMethodInfo")), // methodSet
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}
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case "funcValue":
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fieldTypes = []types.Type{
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types.Typ[types.UnsafePointer], // context
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types.Typ[types.Uintptr], // id
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}
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case "funcValueWithSignature":
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fieldTypes = []types.Type{
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types.Typ[types.Uintptr], // funcPtr
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types.NewPointer(c.getRuntimeType("typecodeID")), // signature
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}
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default:
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panic("could not find runtime type: runtime." + name)
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}
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// Create the named struct type.
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var fields []*types.Var
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for i, t := range fieldTypes {
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// Field name doesn't matter: this type is only used to create a LLVM
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// struct type which don't have field names.
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fields = append(fields, types.NewField(token.NoPos, nil, "field"+strconv.Itoa(i), t, false))
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}
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named.SetUnderlying(types.NewStruct(fields, nil))
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return named
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}
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// getRuntimeFuncType constructs a new runtime function signature with the given
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// name. The function signatures constructed here must match the functions in
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// the runtime package.
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func (c *compilerContext) getRuntimeFuncType(name string) *types.Signature {
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var params []*types.Var
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addParam := func(name string, typ types.Type) {
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params = append(params, types.NewParam(token.NoPos, c.runtimePkg, name, typ))
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}
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var results []*types.Var
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addResult := func(typ types.Type) {
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results = append(results, types.NewParam(token.NoPos, c.runtimePkg, "", typ))
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}
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switch name {
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case "_panic":
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addParam("message", types.NewInterfaceType(nil, nil))
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case "_recover":
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addResult(types.NewInterfaceType(nil, nil))
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case "nilPanic":
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case "lookupPanic":
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case "slicePanic":
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case "chanMakePanic":
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case "negativeShiftPanic":
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case "stringEqual":
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addParam("x", types.Typ[types.String])
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addParam("y", types.Typ[types.String])
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addResult(types.Typ[types.Bool])
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case "stringLess":
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addParam("x", types.Typ[types.String])
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addParam("y", types.Typ[types.String])
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addResult(types.Typ[types.Bool])
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case "stringConcat":
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addParam("x", c.getRuntimeType("_string"))
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addParam("y", c.getRuntimeType("_string"))
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addResult(c.getRuntimeType("_string"))
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case "stringFromBytes":
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addParam("x", types.NewStruct([]*types.Var{
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types.NewField(token.NoPos, nil, "ptr", types.NewPointer(types.Typ[types.Byte]), false),
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types.NewField(token.NoPos, nil, "len", types.Typ[types.Uintptr], false),
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types.NewField(token.NoPos, nil, "cap", types.Typ[types.Uintptr], false),
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}, nil))
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addResult(c.getRuntimeType("_string"))
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case "stringToBytes":
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addParam("x", c.getRuntimeType("_string"))
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addResult(types.NewStruct([]*types.Var{
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types.NewField(token.NoPos, nil, "ptr", types.NewPointer(types.Typ[types.Byte]), false),
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types.NewField(token.NoPos, nil, "len", types.Typ[types.Uintptr], false),
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types.NewField(token.NoPos, nil, "cap", types.Typ[types.Uintptr], false),
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}, nil))
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case "stringFromRunes":
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addParam("runeSlice", types.NewSlice(types.Typ[types.Rune]))
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addResult(c.getRuntimeType("_string"))
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case "stringToRunes":
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addParam("s", types.Typ[types.String])
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addResult(types.NewSlice(types.Typ[types.Rune]))
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case "stringFromUnicode":
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addParam("x", types.Typ[types.Rune])
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addResult(c.getRuntimeType("_string"))
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case "stringNext":
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addParam("s", types.Typ[types.String])
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addParam("it", types.NewPointer(c.getRuntimeType("stringIterator")))
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addResult(types.Typ[types.Bool])
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addResult(types.Typ[types.Int])
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addResult(types.Typ[types.Rune])
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case "complex64div":
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addParam("n", types.Typ[types.Complex64])
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addParam("m", types.Typ[types.Complex64])
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addResult(types.Typ[types.Complex64])
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case "complex128div":
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addParam("n", types.Typ[types.Complex128])
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addParam("m", types.Typ[types.Complex128])
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addResult(types.Typ[types.Complex128])
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case "sliceAppend":
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addParam("srcBuf", types.Typ[types.UnsafePointer])
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addParam("elemsBuf", types.Typ[types.UnsafePointer])
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addParam("srcLen", types.Typ[types.Uintptr])
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addParam("srcCap", types.Typ[types.Uintptr])
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addParam("elemsLen", types.Typ[types.Uintptr])
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addParam("elemSize", types.Typ[types.Uintptr])
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addResult(types.Typ[types.UnsafePointer])
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addResult(types.Typ[types.Uintptr])
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addResult(types.Typ[types.Uintptr])
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case "sliceCopy":
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addParam("dst", types.Typ[types.UnsafePointer])
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addParam("src", types.Typ[types.UnsafePointer])
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addParam("dstLen", types.Typ[types.Uintptr])
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addParam("srcLen", types.Typ[types.Uintptr])
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addParam("elemSize", types.Typ[types.Uintptr])
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addResult(types.Typ[types.Int])
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case "alloc":
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addParam("size", types.Typ[types.Uintptr])
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addResult(types.Typ[types.UnsafePointer])
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case "trackPointer":
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addParam("ptr", types.Typ[types.UnsafePointer])
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case "printbool":
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addParam("b", types.Typ[types.Bool])
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case "printint8":
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addParam("n", types.Typ[types.Int8])
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case "printuint8":
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addParam("n", types.Typ[types.Uint8])
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case "printint16":
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addParam("n", types.Typ[types.Int16])
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case "printuint16":
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addParam("n", types.Typ[types.Uint16])
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case "printint32":
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addParam("n", types.Typ[types.Int32])
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case "printuint32":
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addParam("n", types.Typ[types.Uint32])
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case "printint64":
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addParam("n", types.Typ[types.Int64])
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case "printuint64":
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addParam("n", types.Typ[types.Uint64])
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case "printfloat32":
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addParam("v", types.Typ[types.Float32])
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case "printfloat64":
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addParam("v", types.Typ[types.Float64])
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case "printcomplex64":
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addParam("c", types.Typ[types.Complex64])
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case "printcomplex128":
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addParam("c", types.Typ[types.Complex128])
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case "printstring":
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addParam("s", types.Typ[types.String])
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case "printspace":
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case "printnl":
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case "printptr":
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addParam("ptr", types.Typ[types.Uintptr])
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case "printmap":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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case "printitf":
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addParam("msg", types.NewInterfaceType(nil, nil))
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case "hashmapMake":
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addParam("keySize", types.Typ[types.Uint8])
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addParam("valueSize", types.Typ[types.Uint8])
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addParam("sizeHint", types.Typ[types.Uintptr])
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addResult(types.NewPointer(c.getRuntimeType("hashmap")))
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case "hashmapLen":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addResult(types.Typ[types.Int])
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case "hashmapNext":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("it", types.NewPointer(c.getRuntimeType("hashmapIterator")))
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addParam("key", types.Typ[types.UnsafePointer])
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addParam("value", types.Typ[types.UnsafePointer])
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addResult(types.Typ[types.Bool])
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case "hashmapStringGet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.String])
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addParam("value", types.Typ[types.UnsafePointer])
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addParam("valueSize", types.Typ[types.Uintptr])
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addResult(types.Typ[types.Bool])
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case "hashmapStringSet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.String])
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addParam("value", types.Typ[types.UnsafePointer])
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case "hashmapStringDelete":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.String])
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case "hashmapInterfaceGet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.NewInterfaceType(nil, nil))
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addParam("value", types.Typ[types.UnsafePointer])
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addParam("valueSize", types.Typ[types.Uintptr])
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addResult(types.Typ[types.Bool])
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case "hashmapInterfaceSet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.NewInterfaceType(nil, nil))
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addParam("value", types.Typ[types.UnsafePointer])
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case "hashmapInterfaceDelete":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.NewInterfaceType(nil, nil))
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case "hashmapBinaryGet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.UnsafePointer])
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addParam("value", types.Typ[types.UnsafePointer])
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addParam("valueSize", types.Typ[types.Uintptr])
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addResult(types.Typ[types.Bool])
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case "hashmapBinarySet":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.UnsafePointer])
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addParam("value", types.Typ[types.UnsafePointer])
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case "hashmapBinaryDelete":
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addParam("m", types.NewPointer(c.getRuntimeType("hashmap")))
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addParam("key", types.Typ[types.UnsafePointer])
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case "tryChanSelect":
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addParam("recvbuf", types.Typ[types.UnsafePointer])
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addParam("states", types.NewSlice(c.getRuntimeType("chanSelectState")))
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addResult(types.Typ[types.Uintptr])
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addResult(types.Typ[types.Bool])
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case "chanMake":
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addParam("elementSize", types.Typ[types.Uintptr])
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addParam("bufSize", types.Typ[types.Uintptr])
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addResult(types.NewPointer(c.getRuntimeType("channel")))
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case "chanSend":
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addParam("ch", types.NewPointer(c.getRuntimeType("channel")))
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addParam("value", types.Typ[types.UnsafePointer])
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case "chanRecv":
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addParam("ch", types.NewPointer(c.getRuntimeType("channel")))
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addParam("value", types.Typ[types.UnsafePointer])
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addResult(types.Typ[types.Bool])
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case "chanClose":
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addParam("ch", types.NewPointer(c.getRuntimeType("channel")))
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case "chanSelect":
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addParam("recvbuf", types.Typ[types.UnsafePointer])
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addParam("states", types.NewSlice(c.getRuntimeType("chanSelectState")))
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addParam("ops", types.NewSlice(c.getRuntimeType("channelBlockedList")))
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addResult(types.Typ[types.Uintptr])
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addResult(types.Typ[types.Bool])
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case "deadlock":
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case "interfaceEqual":
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addParam("x", types.NewInterfaceType(nil, nil))
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addParam("y", types.NewInterfaceType(nil, nil))
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addResult(types.Typ[types.Bool])
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case "interfaceImplements":
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addParam("typecode", types.Typ[types.Uintptr])
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addParam("interfaceMethodSet", types.NewPointer(types.NewPointer(types.Typ[types.Uint8])))
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addResult(types.Typ[types.Bool])
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case "interfaceMethod":
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addParam("typecode", types.Typ[types.Uintptr])
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addParam("interfaceMethodSet", types.NewPointer(types.NewPointer(types.Typ[types.Uint8])))
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addParam("signature", types.NewPointer(types.Typ[types.Uint8]))
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addResult(types.Typ[types.Uintptr])
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case "typeAssert":
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addParam("actualType", types.Typ[types.Uintptr])
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addParam("assertedType", types.NewPointer(c.getRuntimeType("typecodeID")))
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addResult(types.Typ[types.Bool])
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case "interfaceTypeAssert":
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addParam("ok", types.Typ[types.Bool])
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case "getFuncPtr":
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addParam("val", c.getRuntimeType("funcValue"))
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addParam("signature", types.NewPointer(c.getRuntimeType("typecodeID")))
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addResult(types.Typ[types.Uintptr])
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default:
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panic("unknown runtime call: runtime." + name)
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}
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return types.NewSignature(nil, types.NewTuple(params...), types.NewTuple(results...), false)
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}
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