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| author | Ting-Wei Lan <tingwei.lan@cobinhood.com> | 2019-02-23 17:47:20 +0800 |
|---|---|---|
| committer | Jhih-Ming Huang <jm.huang@cobinhood.com> | 2019-05-06 10:44:04 +0800 |
| commit | 3274f055838e0bbc499a24ac58e06a4604d0a322 (patch) | |
| tree | 410dd752e6eeb8597e59c72a03285bf3ea19f786 /core/vm/sqlvm/cmd | |
| parent | 7628271e5d363a9a7283efb6f7d8b1b52e392e45 (diff) | |
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core: vm: sqlvm: ast: handle error in AST printer
Catch the error reported by fmt.Fprintf and report it to the caller.
Diffstat (limited to 'core/vm/sqlvm/cmd')
| -rw-r--r-- | core/vm/sqlvm/cmd/ast-printer/main.go | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/core/vm/sqlvm/cmd/ast-printer/main.go b/core/vm/sqlvm/cmd/ast-printer/main.go index 33710f2b0..d62cb4fc8 100644 --- a/core/vm/sqlvm/cmd/ast-printer/main.go +++ b/core/vm/sqlvm/cmd/ast-printer/main.go @@ -15,12 +15,18 @@ func main() { flag.Parse() + fmt.Fprintf(os.Stderr, "detail: %t\n", detail) s := []byte(flag.Arg(0)) - n, err := parser.Parse(s) - fmt.Printf("detail: %t\n", detail) - if err != nil { - fmt.Fprintf(os.Stderr, "err:\n%+v\n", err) + n, parseErr := parser.Parse(s) + b, printErr := ast.PrintAST(os.Stdout, n, s, " ", detail) + if parseErr != nil { + fmt.Fprintf(os.Stderr, "Parse error:\n%+v\n", parseErr) + } + if printErr != nil { + fmt.Fprintf(os.Stderr, "Print error:\n%+v\n", printErr) + } + fmt.Fprintf(os.Stderr, "Output size: %d bytes\n", b) + if parseErr != nil || printErr != nil { os.Exit(1) } - ast.PrintAST(os.Stdout, n, s, " ", detail) } |