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execute.go
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execute.go
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/*
* Cadence - The resource-oriented smart contract programming language
*
* Copyright 2019-2020 Dapper Labs, Inc.
*
* 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 execute
import (
"github.com/onflow/cadence/runtime/cmd"
)
// Execute parses the given filename and prints any syntax errors.
// If there are no syntax errors, the program is interpreted.
// If after the interpretation a global function `main` is defined, it will be called.
// The program may call the function `log` to print a value.
func Execute(args []string) {
if len(args) < 1 {
cmd.ExitWithError("no input file")
}
inter, _, must := cmd.PrepareInterpreter(args[0])
if _, hasMain := inter.Globals["main"]; !hasMain {
return
}
_, err := inter.Invoke("main")
must(err)
}