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