mirror of
https://github.com/golang/go
synced 2024-10-03 20:21:22 -06:00
e45eb60657
- in selftest mode (-t) interpret comments of the form /* ERROR */ and /* SYNC */ and validate reported errors with the error markings in a file - added initial selftest.go file Also: - fixed an issue with empty blocks - generally report better error messages - added many more tests to the test script (essentially all .go programs which have no syntax errors) R=r OCL=17426 CL=17426
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import Flag "flag"
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import Platform "platform"
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import Scanner "scanner"
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import Parser "parser"
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import Printer "printer"
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var (
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silent = Flag.Bool("s", false, nil, "silent mode: no pretty print output");
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verbose = Flag.Bool("v", false, nil, "verbose mode: trace parsing");
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sixg = Flag.Bool("6g", true, nil, "6g compatibility mode");
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testmode = Flag.Bool("t", false, nil, "test mode: interprets /* ERROR */ and /* SYNC */ comments");
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tokenchan = Flag.Bool("token_chan", false, nil, "use token channel for scanner-parser connection");
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)
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func Usage() {
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print("usage: pretty { flags } { files }\n");
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Flag.PrintDefaults();
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sys.exit(0);
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}
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func main() {
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Flag.Parse();
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if Flag.NFlag() == 0 && Flag.NArg() == 0 {
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Usage();
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}
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// process files
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for i := 0; i < Flag.NArg(); i++ {
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src_file := Flag.Arg(i);
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src, ok := Platform.ReadSourceFile(src_file);
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if !ok {
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print("cannot open ", src_file, "\n");
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sys.exit(1);
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}
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scanner := new(Scanner.Scanner);
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scanner.Open(src_file, src, testmode.BVal());
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var tstream *<-chan *Scanner.Token;
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if tokenchan.BVal() {
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tstream = scanner.TokenStream();
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}
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parser := new(Parser.Parser);
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parser.Open(verbose.BVal(), sixg.BVal(), scanner, tstream);
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prog := parser.ParseProgram();
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if scanner.nerrors > 0 {
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sys.exit(1);
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}
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if !silent.BVal() && !testmode.BVal() {
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var P Printer.Printer;
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(&P).Program(prog);
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}
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}
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}
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