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- // Copyright 2021 Google LLC
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- package mk2rbc
- import "fmt"
- // Starlark expression types we use
- type starlarkType int
- const (
- // Variable types. Initially we only know the types of the product
- // configuration variables that are lists, and the types of some
- // hardwired variables. The remaining variables are first entered as
- // having an unknown type and treated as strings, but sometimes we
- // can infer variable's type from the value assigned to it.
- starlarkTypeUnknown starlarkType = iota
- starlarkTypeList starlarkType = iota
- starlarkTypeString starlarkType = iota
- starlarkTypeInt starlarkType = iota
- starlarkTypeBool starlarkType = iota
- starlarkTypeVoid starlarkType = iota
- )
- func (t starlarkType) String() string {
- switch t {
- case starlarkTypeList:
- return "list"
- case starlarkTypeString:
- return "string"
- case starlarkTypeInt:
- return "int"
- case starlarkTypeBool:
- return "bool"
- case starlarkTypeVoid:
- return "void"
- case starlarkTypeUnknown:
- return "unknown"
- default:
- panic(fmt.Sprintf("Unknown starlark type %d", t))
- }
- }
- type hiddenArgType int
- const (
- // Some functions have an implicitly emitted first argument, which may be
- // a global ('g') or configuration ('cfg') variable.
- hiddenArgNone hiddenArgType = iota
- hiddenArgGlobal hiddenArgType = iota
- hiddenArgConfig hiddenArgType = iota
- )
- type varClass int
- const (
- VarClassConfig varClass = iota
- VarClassSoong varClass = iota
- VarClassLocal varClass = iota
- )
- type variableRegistrar interface {
- NewVariable(name string, varClass varClass, valueType starlarkType)
- }
- // ScopeBase is a placeholder implementation of the mkparser.Scope.
- // All our scopes are read-only and resolve only simple variables.
- type ScopeBase struct{}
- func (s ScopeBase) Set(_, _ string) {
- panic("implement me")
- }
- func (s ScopeBase) Call(_ string, _ []string) []string {
- panic("implement me")
- }
- func (s ScopeBase) SetFunc(_ string, _ func([]string) []string) {
- panic("implement me")
- }
- // Used to find all makefiles in the source tree
- type MakefileFinder interface {
- Find(root string) []string
- }
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