sys/syz-sysgen: switch to new parser

For now we just generate the old structs from the new AST.
But this allows to delete the old parser entirely.

1 files changed, 0 insertions, 100 deletions

diff --git a/sys/sysparser/parser.go b/sys/sysparser/parser.go
deleted file mode 100644
index d5021eee6..000000000
--- a/sys/sysparser/parser.go
+++ /dev/null
@@ -1,100 +0,0 @@
-// Copyright 2015/2016 syzkaller project authors. All rights reserved.
-// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.
-
-package sysparser
-
-import (
-	"bufio"
-	"fmt"
-	"io"
-	"os"
-)
-
-type parser struct {
-	r *bufio.Scanner
-	s string
-	i int
-	l int
-}
-
-func newParser(r io.Reader) *parser {
-	return &parser{r: bufio.NewScanner(r)}
-}
-
-func (p *parser) Scan() bool {
-	if !p.r.Scan() {
-		if err := p.r.Err(); err != nil {
-			failf("failed to read input file: %v", err)
-		}
-		return false
-	}
-	p.s = p.r.Text()
-	p.i = 0
-	p.l++
-	return true
-}
-
-func (p *parser) Str() string {
-	return p.s
-}
-
-func (p *parser) EOF() bool {
-	return p.i == len(p.s)
-}
-
-func (p *parser) Char() byte {
-	if p.EOF() {
-		p.failf("unexpected eof")
-	}
-	return p.s[p.i]
-}
-
-func (p *parser) Parse(ch byte) {
-	if p.EOF() {
-		p.failf("want %s, got EOF", string(ch))
-	}
-	if p.s[p.i] != ch {
-		p.failf("want '%v', got '%v'", string(ch), string(p.s[p.i]))
-	}
-	p.i++
-	p.SkipWs()
-}
-
-func (p *parser) SkipWs() {
-	for p.i < len(p.s) && (p.s[p.i] == ' ' || p.s[p.i] == '\t') {
-		p.i++
-	}
-}
-
-func (p *parser) Ident() string {
-	start, end := p.i, 0
-	if p.Char() == '"' {
-		p.Parse('"')
-		for p.Char() != '"' {
-			p.i++
-		}
-		end = p.i + 1
-		p.Parse('"')
-	} else {
-		for p.i < len(p.s) &&
-			(p.s[p.i] >= 'a' && p.s[p.i] <= 'z' ||
-				p.s[p.i] >= 'A' && p.s[p.i] <= 'Z' ||
-				p.s[p.i] >= '0' && p.s[p.i] <= '9' ||
-				p.s[p.i] == '_' || p.s[p.i] == '$' || // $ is for n-way syscalls (like ptrace$peek)
-				p.s[p.i] == '-' || p.s[p.i] == ':') { // : is for ranged int (like int32[-3:10])
-			p.i++
-		}
-		if start == p.i {
-			p.failf("failed to parse identifier at pos %v", start)
-		}
-		end = p.i
-	}
-	s := p.s[start:end]
-	p.SkipWs()
-	return s
-}
-
-func (p *parser) failf(msg string, args ...interface{}) {
-	fmt.Fprintf(os.Stderr, "line #%v: %v\n", p.l, p.s)
-	failf(msg, args...)
-}