Official Go implementation of the Ethereum protocol
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go-ethereum/internal/ethapi/solc.go

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2.2 KiB

// Copyright 2016 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package ethapi
import (
"sync"
"github.com/ethereum/go-ethereum/common/compiler"
"github.com/ethereum/go-ethereum/rpc"
)
func makeCompilerAPIs(solcPath string) []rpc.API {
c := &compilerAPI{solc: solcPath}
return []rpc.API{
{
Namespace: "eth",
Version: "1.0",
Service: (*PublicCompilerAPI)(c),
Public: true,
},
{
Namespace: "admin",
Version: "1.0",
Service: (*CompilerAdminAPI)(c),
Public: true,
},
}
}
type compilerAPI struct {
// This lock guards the solc path set through the API.
// It also ensures that only one solc process is used at
// any time.
mu sync.Mutex
solc string
}
type CompilerAdminAPI compilerAPI
// SetSolc sets the Solidity compiler path to be used by the node.
func (api *CompilerAdminAPI) SetSolc(path string) (string, error) {
api.mu.Lock()
defer api.mu.Unlock()
info, err := compiler.SolidityVersion(path)
if err != nil {
return "", err
}
api.solc = path
return info.FullVersion, nil
}
type PublicCompilerAPI compilerAPI
// CompileSolidity compiles the given solidity source.
func (api *PublicCompilerAPI) CompileSolidity(source string) (map[string]*compiler.Contract, error) {
api.mu.Lock()
defer api.mu.Unlock()
return compiler.CompileSolidityString(api.solc, source)
}
func (api *PublicCompilerAPI) GetCompilers() ([]string, error) {
api.mu.Lock()
defer api.mu.Unlock()
if _, err := compiler.SolidityVersion(api.solc); err == nil {
return []string{"Solidity"}, nil
}
return []string{}, nil
}