Shinichiro Hamaji | b69bf8a | 2015-06-10 14:52:06 +0900 | [diff] [blame] | 1 | // Copyright 2015 Google Inc. All rights reserved |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
Fumitoshi Ukai | 744bb2b | 2015-06-25 00:10:52 +0900 | [diff] [blame] | 15 | package kati |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 16 | |
Fumitoshi Ukai | 0aa4fc4 | 2015-04-10 17:00:19 +0900 | [diff] [blame] | 17 | //go:generate go run testcase/gen_testcase_parse_benchmark.go |
| 18 | // |
| 19 | // $ go generate |
| 20 | // $ go test -bench . |
| 21 | |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 22 | import ( |
| 23 | "bufio" |
Shinichiro Hamaji | e184158 | 2015-03-30 17:20:33 +0900 | [diff] [blame] | 24 | "bytes" |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 25 | "crypto/sha1" |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 26 | "errors" |
Fumitoshi Ukai | f8efa0a | 2015-03-30 18:10:11 +0900 | [diff] [blame] | 27 | "fmt" |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 28 | "io" |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 29 | "io/ioutil" |
Shinichiro Hamaji | d7bef60 | 2015-03-30 19:55:32 +0900 | [diff] [blame] | 30 | "strings" |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 31 | "sync" |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 32 | "time" |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 33 | |
| 34 | "github.com/golang/glog" |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 35 | ) |
| 36 | |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 37 | type makefile struct { |
Shinichiro Hamaji | 491e73f | 2015-04-07 12:41:59 +0900 | [diff] [blame] | 38 | filename string |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 39 | stmts []ast |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 40 | } |
| 41 | |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 42 | type ifState struct { |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 43 | ast *ifAST |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 44 | inElse bool |
| 45 | numNest int |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 46 | } |
| 47 | |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 48 | type parser struct { |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 49 | rd *bufio.Reader |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 50 | mk makefile |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 51 | lineno int |
| 52 | elineno int // lineno == elineno unless there is trailing '\'. |
| 53 | linenoFixed bool |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 54 | done bool |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 55 | outStmts *[]ast |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 56 | inRecipe bool |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 57 | ifStack []ifState |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 58 | |
| 59 | defineVar []byte |
| 60 | inDef []byte |
| 61 | |
| 62 | defOpt string |
| 63 | numIfNest int |
| 64 | err error |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 65 | } |
| 66 | |
Shinichiro Hamaji | 685fecf | 2015-03-30 18:28:12 +0900 | [diff] [blame] | 67 | func newParser(rd io.Reader, filename string) *parser { |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 68 | p := &parser{ |
Shinichiro Hamaji | 3fab47e | 2015-04-08 18:34:41 +0900 | [diff] [blame] | 69 | rd: bufio.NewReader(rd), |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 70 | } |
Shinichiro Hamaji | 491e73f | 2015-04-07 12:41:59 +0900 | [diff] [blame] | 71 | p.mk.filename = filename |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 72 | p.outStmts = &p.mk.stmts |
| 73 | return p |
| 74 | } |
| 75 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 76 | func (p *parser) srcpos() srcpos { |
| 77 | return srcpos{ |
| 78 | filename: p.mk.filename, |
| 79 | lineno: p.lineno, |
| 80 | } |
| 81 | } |
| 82 | |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 83 | func (p *parser) addStatement(stmt ast) { |
| 84 | *p.outStmts = append(*p.outStmts, stmt) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 85 | switch stmt.(type) { |
| 86 | case *maybeRuleAST: |
| 87 | p.inRecipe = true |
| 88 | case *assignAST, *includeAST, *exportAST: |
| 89 | p.inRecipe = false |
| 90 | } |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 91 | } |
| 92 | |
Shinichiro Hamaji | e184158 | 2015-03-30 17:20:33 +0900 | [diff] [blame] | 93 | func (p *parser) readLine() []byte { |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 94 | if !p.linenoFixed { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 95 | p.lineno = p.elineno + 1 |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 96 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 97 | var line []byte |
| 98 | for !p.done { |
| 99 | buf, err := p.rd.ReadBytes('\n') |
| 100 | if !p.linenoFixed { |
| 101 | p.elineno++ |
| 102 | } |
| 103 | if err == io.EOF { |
| 104 | p.done = true |
| 105 | } else if err != nil { |
| 106 | p.err = fmt.Errorf("readline %s: %v", p.srcpos(), err) |
| 107 | p.done = true |
| 108 | } |
| 109 | line = append(line, buf...) |
| 110 | buf = bytes.TrimRight(buf, "\r\n") |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 111 | glog.V(4).Infof("buf:%q", buf) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 112 | backslash := false |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 113 | for len(buf) > 0 && buf[len(buf)-1] == '\\' { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 114 | buf = buf[:len(buf)-1] |
| 115 | backslash = !backslash |
| 116 | } |
| 117 | if !backslash { |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 118 | glog.V(4).Infof("no concat line:%q", buf) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 119 | break |
Shinichiro Hamaji | 52e83aa | 2015-04-06 17:20:28 +0900 | [diff] [blame] | 120 | } |
| 121 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 122 | line = bytes.TrimRight(line, "\r\n") |
Shinichiro Hamaji | e184158 | 2015-03-30 17:20:33 +0900 | [diff] [blame] | 123 | return line |
| 124 | } |
| 125 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 126 | func newAssignAST(p *parser, lhsBytes []byte, rhsBytes []byte, op string) (*assignAST, error) { |
Fumitoshi Ukai | e9aa380 | 2015-07-03 11:33:23 +0900 | [diff] [blame] | 127 | lhs, _, err := parseExpr(lhsBytes, nil, parseOp{alloc: true}) |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 128 | if err != nil { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 129 | return nil, err |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 130 | } |
Fumitoshi Ukai | e9aa380 | 2015-07-03 11:33:23 +0900 | [diff] [blame] | 131 | rhs, _, err := parseExpr(rhsBytes, nil, parseOp{alloc: true}) |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 132 | if err != nil { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 133 | return nil, err |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 134 | } |
| 135 | opt := "" |
| 136 | if p != nil { |
| 137 | opt = p.defOpt |
| 138 | } |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 139 | return &assignAST{ |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 140 | lhs: lhs, |
| 141 | rhs: rhs, |
| 142 | op: op, |
| 143 | opt: opt, |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 144 | }, nil |
Shinichiro Hamaji | 7825b65 | 2015-06-04 13:47:14 +0900 | [diff] [blame] | 145 | } |
| 146 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 147 | func (p *parser) handleDirective(line []byte, directives map[string]directiveFunc) bool { |
| 148 | w, data := firstWord(line) |
| 149 | if d, ok := directives[string(w)]; ok { |
| 150 | d(p, data) |
| 151 | return true |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 152 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 153 | return false |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 154 | } |
| 155 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 156 | func (p *parser) handleRuleOrAssign(line []byte) { |
| 157 | rline := line |
| 158 | var semi []byte |
Fumitoshi Ukai | 6addc2f | 2015-07-22 11:33:35 +0900 | [diff] [blame] | 159 | if i := findLiteralChar(line, ';', 0, skipVar); i >= 0 { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 160 | // preserve after semicolon |
| 161 | semi = append(semi, line[i+1:]...) |
| 162 | rline = concatline(line[:i]) |
| 163 | } else { |
| 164 | rline = concatline(line) |
Shinichiro Hamaji | de82971 | 2015-03-31 18:26:56 +0900 | [diff] [blame] | 165 | } |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 166 | if p.handleAssign(line) { |
| 167 | return |
| 168 | } |
Fumitoshi Ukai | 201df42 | 2015-07-07 17:31:05 +0900 | [diff] [blame] | 169 | // not assignment. |
| 170 | // ie. no '=' found or ':' found before '=' (except ':=') |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 171 | p.parseMaybeRule(rline, semi) |
| 172 | return |
| 173 | } |
| 174 | |
| 175 | func (p *parser) handleAssign(line []byte) bool { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 176 | aline, _ := removeComment(concatline(line)) |
| 177 | aline = trimLeftSpaceBytes(aline) |
| 178 | if len(aline) == 0 { |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 179 | return false |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 180 | } |
| 181 | // fmt.Printf("assign: %q=>%q\n", line, aline) |
Fumitoshi Ukai | 6addc2f | 2015-07-22 11:33:35 +0900 | [diff] [blame] | 182 | i := findLiteralChar(aline, ':', '=', skipVar) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 183 | if i >= 0 { |
| 184 | if aline[i] == '=' { |
| 185 | p.parseAssign(aline, i) |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 186 | return true |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 187 | } |
| 188 | if aline[i] == ':' && i+1 < len(aline) && aline[i+1] == '=' { |
| 189 | p.parseAssign(aline, i+1) |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 190 | return true |
Shinichiro Hamaji | e12e24d | 2015-04-11 23:09:20 +0900 | [diff] [blame] | 191 | } |
| 192 | } |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 193 | return false |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 194 | } |
| 195 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 196 | func (p *parser) parseAssign(line []byte, sep int) { |
| 197 | lhs, op, rhs := line[:sep], line[sep:sep+1], line[sep+1:] |
| 198 | if sep > 0 { |
| 199 | switch line[sep-1] { |
| 200 | case ':', '+', '?': |
| 201 | lhs, op = line[:sep-1], line[sep-1:sep+1] |
| 202 | } |
| 203 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 204 | glog.V(1).Infof("parseAssign %s op:%q opt:%s", line, op, p.defOpt) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 205 | lhs = trimSpaceBytes(lhs) |
| 206 | rhs = trimLeftSpaceBytes(rhs) |
| 207 | aast, err := newAssignAST(p, lhs, rhs, string(op)) |
| 208 | if err != nil { |
| 209 | p.err = err |
| 210 | return |
| 211 | } |
| 212 | aast.srcpos = p.srcpos() |
| 213 | p.addStatement(aast) |
| 214 | } |
| 215 | |
| 216 | func (p *parser) parseMaybeRule(line, semi []byte) { |
Fumitoshi Ukai | 56531c1 | 2015-07-07 18:04:39 +0900 | [diff] [blame] | 217 | if len(line) == 0 { |
| 218 | p.err = p.srcpos().errorf("*** missing rule before commands.") |
| 219 | return |
| 220 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 221 | if line[0] == '\t' { |
| 222 | p.err = p.srcpos().errorf("*** commands commence before first target.") |
| 223 | return |
| 224 | } |
Fumitoshi Ukai | 201df42 | 2015-07-07 17:31:05 +0900 | [diff] [blame] | 225 | var assign *assignAST |
Fumitoshi Ukai | 6addc2f | 2015-07-22 11:33:35 +0900 | [diff] [blame] | 226 | ci := findLiteralChar(line, ':', 0, skipVar) |
Fumitoshi Ukai | 201df42 | 2015-07-07 17:31:05 +0900 | [diff] [blame] | 227 | if ci >= 0 { |
Fumitoshi Ukai | 6addc2f | 2015-07-22 11:33:35 +0900 | [diff] [blame] | 228 | eqi := findLiteralChar(line[ci+1:], '=', 0, skipVar) |
Fumitoshi Ukai | 201df42 | 2015-07-07 17:31:05 +0900 | [diff] [blame] | 229 | if eqi == 0 { |
| 230 | panic(fmt.Sprintf("unexpected eq after colon: %q", line)) |
| 231 | } |
| 232 | if eqi > 0 { |
| 233 | var lhsbytes []byte |
| 234 | op := "=" |
| 235 | switch line[ci+1+eqi-1] { |
| 236 | case ':', '+', '?': |
| 237 | lhsbytes = append(lhsbytes, line[ci+1:ci+1+eqi-1]...) |
| 238 | op = string(line[ci+1+eqi-1 : ci+1+eqi+1]) |
| 239 | default: |
| 240 | lhsbytes = append(lhsbytes, line[ci+1:ci+1+eqi]...) |
| 241 | } |
| 242 | |
| 243 | lhsbytes = trimSpaceBytes(lhsbytes) |
| 244 | lhs, _, err := parseExpr(lhsbytes, nil, parseOp{}) |
| 245 | if err != nil { |
| 246 | p.err = p.srcpos().error(err) |
| 247 | return |
| 248 | } |
| 249 | var rhsbytes []byte |
| 250 | rhsbytes = append(rhsbytes, line[ci+1+eqi+1:]...) |
| 251 | if semi != nil { |
| 252 | rhsbytes = append(rhsbytes, ';') |
| 253 | rhsbytes = append(rhsbytes, concatline(semi)...) |
| 254 | } |
| 255 | rhsbytes = trimLeftSpaceBytes(rhsbytes) |
| 256 | semi = nil |
| 257 | rhs, _, err := parseExpr(rhsbytes, nil, parseOp{}) |
| 258 | if err != nil { |
| 259 | p.err = p.srcpos().error(err) |
| 260 | return |
| 261 | } |
| 262 | |
| 263 | // TODO(ukai): support override, export in target specific var. |
| 264 | assign = &assignAST{ |
| 265 | lhs: lhs, |
| 266 | rhs: rhs, |
| 267 | op: op, |
| 268 | } |
| 269 | assign.srcpos = p.srcpos() |
| 270 | line = line[:ci+1] |
| 271 | } |
| 272 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 273 | expr, _, err := parseExpr(line, nil, parseOp{}) |
| 274 | if err != nil { |
Fumitoshi Ukai | cba36c9 | 2015-07-07 16:04:18 +0900 | [diff] [blame] | 275 | p.err = p.srcpos().error(err) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 276 | return |
| 277 | } |
| 278 | // TODO(ukai): remove ast, and eval here. |
| 279 | rast := &maybeRuleAST{ |
Fumitoshi Ukai | 201df42 | 2015-07-07 17:31:05 +0900 | [diff] [blame] | 280 | isRule: ci >= 0, |
| 281 | expr: expr, |
| 282 | assign: assign, |
| 283 | semi: semi, |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 284 | } |
| 285 | rast.srcpos = p.srcpos() |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 286 | glog.V(1).Infof("stmt: %#v", rast) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 287 | p.addStatement(rast) |
| 288 | } |
| 289 | |
| 290 | func (p *parser) parseInclude(op string, line []byte) { |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 291 | // TODO(ukai): parse expr here |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 292 | iast := &includeAST{ |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 293 | expr: string(line), |
| 294 | op: op, |
Shinichiro Hamaji | d7bef60 | 2015-03-30 19:55:32 +0900 | [diff] [blame] | 295 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 296 | iast.srcpos = p.srcpos() |
| 297 | p.addStatement(iast) |
Shinichiro Hamaji | d7bef60 | 2015-03-30 19:55:32 +0900 | [diff] [blame] | 298 | } |
| 299 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 300 | func (p *parser) parseIfdef(op string, data []byte) { |
| 301 | lhs, _, err := parseExpr(data, nil, parseOp{alloc: true}) |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 302 | if err != nil { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 303 | p.err = p.srcpos().error(err) |
| 304 | return |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 305 | } |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 306 | iast := &ifAST{ |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 307 | op: op, |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 308 | lhs: lhs, |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 309 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 310 | iast.srcpos = p.srcpos() |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 311 | p.addStatement(iast) |
| 312 | p.ifStack = append(p.ifStack, ifState{ast: iast, numNest: p.numIfNest}) |
| 313 | p.outStmts = &iast.trueStmts |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 314 | } |
| 315 | |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 316 | func (p *parser) parseTwoQuotes(s []byte) (string, string, []byte, bool) { |
Shinichiro Hamaji | 76de43e | 2015-04-03 10:40:18 +0900 | [diff] [blame] | 317 | var args []string |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 318 | for i := 0; i < 2; i++ { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 319 | s = trimSpaceBytes(s) |
| 320 | if len(s) == 0 { |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 321 | return "", "", nil, false |
Shinichiro Hamaji | 76de43e | 2015-04-03 10:40:18 +0900 | [diff] [blame] | 322 | } |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 323 | quote := s[0] |
| 324 | if quote != '\'' && quote != '"' { |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 325 | return "", "", nil, false |
Shinichiro Hamaji | 76de43e | 2015-04-03 10:40:18 +0900 | [diff] [blame] | 326 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 327 | end := bytes.IndexByte(s[1:], quote) + 1 |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 328 | if end < 0 { |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 329 | return "", "", nil, false |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 330 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 331 | args = append(args, string(s[1:end])) |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 332 | s = s[end+1:] |
| 333 | } |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 334 | return args[0], args[1], s, true |
Shinichiro Hamaji | 76de43e | 2015-04-03 10:40:18 +0900 | [diff] [blame] | 335 | } |
| 336 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 337 | // parse |
| 338 | // "(lhs, rhs)" |
| 339 | // "lhs, rhs" |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 340 | func (p *parser) parseEq(s []byte) (string, string, []byte, bool) { |
Fumitoshi Ukai | a1d6852 | 2015-07-07 15:34:22 +0900 | [diff] [blame] | 341 | if len(s) == 0 { |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 342 | return "", "", nil, false |
Fumitoshi Ukai | a1d6852 | 2015-07-07 15:34:22 +0900 | [diff] [blame] | 343 | } |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 344 | if s[0] == '(' { |
| 345 | in := s[1:] |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 346 | glog.V(1).Infof("parseEq ( %q )", in) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 347 | term := []byte{','} |
Fumitoshi Ukai | e9aa380 | 2015-07-03 11:33:23 +0900 | [diff] [blame] | 348 | v, n, err := parseExpr(in, term, parseOp{matchParen: true}) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 349 | if err != nil { |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 350 | glog.V(1).Infof("parse eq: %q: %v", in, err) |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 351 | return "", "", nil, false |
Shinichiro Hamaji | 76de43e | 2015-04-03 10:40:18 +0900 | [diff] [blame] | 352 | } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 353 | lhs := v.String() |
| 354 | n++ |
| 355 | n += skipSpaces(in[n:], nil) |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 356 | term = []byte{')'} |
| 357 | in = in[n:] |
| 358 | v, n, err = parseExpr(in, term, parseOp{matchParen: true}) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 359 | if err != nil { |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 360 | glog.V(1).Infof("parse eq 2nd: %q: %v", in, err) |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 361 | return "", "", nil, false |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 362 | } |
| 363 | rhs := v.String() |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 364 | in = in[n+1:] |
| 365 | in = trimSpaceBytes(in) |
| 366 | return lhs, rhs, in, true |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 367 | } |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 368 | return p.parseTwoQuotes(s) |
Shinichiro Hamaji | af1e816 | 2015-03-31 02:15:37 +0900 | [diff] [blame] | 369 | } |
| 370 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 371 | func (p *parser) parseIfeq(op string, data []byte) { |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 372 | lhsBytes, rhsBytes, extra, ok := p.parseEq(data) |
Shinichiro Hamaji | af1e816 | 2015-03-31 02:15:37 +0900 | [diff] [blame] | 373 | if !ok { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 374 | p.err = p.srcpos().errorf(`*** invalid syntax in conditional.`) |
| 375 | return |
Shinichiro Hamaji | af1e816 | 2015-03-31 02:15:37 +0900 | [diff] [blame] | 376 | } |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 377 | if len(extra) > 0 { |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 378 | glog.V(1).Infof("extra %q", extra) |
Fumitoshi Ukai | d1578d5 | 2015-09-04 17:44:15 +0900 | [diff] [blame] | 379 | warnNoPrefix(p.srcpos(), `extraneous text after %q directive`, op) |
Fumitoshi Ukai | fc02d67 | 2015-07-07 15:49:58 +0900 | [diff] [blame] | 380 | } |
Shinichiro Hamaji | af1e816 | 2015-03-31 02:15:37 +0900 | [diff] [blame] | 381 | |
Fumitoshi Ukai | e9aa380 | 2015-07-03 11:33:23 +0900 | [diff] [blame] | 382 | lhs, _, err := parseExpr([]byte(lhsBytes), nil, parseOp{matchParen: true}) |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 383 | if err != nil { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 384 | p.err = p.srcpos().error(err) |
| 385 | return |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 386 | } |
Fumitoshi Ukai | e9aa380 | 2015-07-03 11:33:23 +0900 | [diff] [blame] | 387 | rhs, _, err := parseExpr([]byte(rhsBytes), nil, parseOp{matchParen: true}) |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 388 | if err != nil { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 389 | p.err = p.srcpos().error(err) |
| 390 | return |
Shinichiro Hamaji | 1a68fd2 | 2015-06-04 14:46:56 +0900 | [diff] [blame] | 391 | } |
| 392 | |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 393 | iast := &ifAST{ |
Shinichiro Hamaji | 1f47638 | 2015-04-09 14:46:04 +0900 | [diff] [blame] | 394 | op: op, |
Shinichiro Hamaji | af1e816 | 2015-03-31 02:15:37 +0900 | [diff] [blame] | 395 | lhs: lhs, |
| 396 | rhs: rhs, |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 397 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 398 | iast.srcpos = p.srcpos() |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 399 | p.addStatement(iast) |
| 400 | p.ifStack = append(p.ifStack, ifState{ast: iast, numNest: p.numIfNest}) |
| 401 | p.outStmts = &iast.trueStmts |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 402 | } |
| 403 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 404 | func (p *parser) checkIfStack(curKeyword string) error { |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 405 | if len(p.ifStack) == 0 { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 406 | return p.srcpos().errorf(`*** extraneous %q.`, curKeyword) |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 407 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 408 | return nil |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 409 | } |
| 410 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 411 | func (p *parser) parseElse(data []byte) { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 412 | err := p.checkIfStack("else") |
| 413 | if err != nil { |
| 414 | p.err = err |
| 415 | return |
| 416 | } |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 417 | state := &p.ifStack[len(p.ifStack)-1] |
Fumitoshi Ukai | 0293c7a | 2015-03-31 16:26:53 +0900 | [diff] [blame] | 418 | if state.inElse { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 419 | p.err = p.srcpos().errorf(`*** only one "else" per conditional.`) |
| 420 | return |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 421 | } |
Fumitoshi Ukai | 0293c7a | 2015-03-31 16:26:53 +0900 | [diff] [blame] | 422 | state.inElse = true |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 423 | p.outStmts = &state.ast.falseStmts |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 424 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 425 | nextIf := data |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 426 | if len(nextIf) == 0 { |
| 427 | return |
| 428 | } |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 429 | var ifDirectives = map[string]directiveFunc{ |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 430 | "ifdef": ifdefDirective, |
| 431 | "ifndef": ifndefDirective, |
| 432 | "ifeq": ifeqDirective, |
| 433 | "ifneq": ifneqDirective, |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 434 | } |
| 435 | p.numIfNest = state.numNest + 1 |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 436 | if p.handleDirective(nextIf, ifDirectives) { |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 437 | p.numIfNest = 0 |
| 438 | return |
| 439 | } |
| 440 | p.numIfNest = 0 |
Fumitoshi Ukai | 1ed9437 | 2015-07-15 16:28:20 +0900 | [diff] [blame] | 441 | warnNoPrefix(p.srcpos(), "extraneous text after `else' directive") |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 442 | return |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 443 | } |
| 444 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 445 | func (p *parser) parseEndif(data []byte) { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 446 | err := p.checkIfStack("endif") |
| 447 | if err != nil { |
| 448 | p.err = err |
| 449 | return |
| 450 | } |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 451 | state := p.ifStack[len(p.ifStack)-1] |
| 452 | for t := 0; t <= state.numNest; t++ { |
| 453 | p.ifStack = p.ifStack[0 : len(p.ifStack)-1] |
| 454 | if len(p.ifStack) == 0 { |
| 455 | p.outStmts = &p.mk.stmts |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 456 | } else { |
Shinichiro Hamaji | a06760f | 2015-04-07 13:13:45 +0900 | [diff] [blame] | 457 | state := p.ifStack[len(p.ifStack)-1] |
| 458 | if state.inElse { |
| 459 | p.outStmts = &state.ast.falseStmts |
| 460 | } else { |
| 461 | p.outStmts = &state.ast.trueStmts |
| 462 | } |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 463 | } |
| 464 | } |
Fumitoshi Ukai | 1ed9437 | 2015-07-15 16:28:20 +0900 | [diff] [blame] | 465 | if len(trimSpaceBytes(data)) > 0 { |
| 466 | warnNoPrefix(p.srcpos(), "extraneous text after `endif' directive") |
| 467 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 468 | return |
Shinichiro Hamaji | 497754d | 2015-03-31 02:02:11 +0900 | [diff] [blame] | 469 | } |
| 470 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 471 | func (p *parser) parseDefine(data []byte) { |
| 472 | p.defineVar = nil |
| 473 | p.inDef = nil |
| 474 | p.defineVar = append(p.defineVar, trimSpaceBytes(data)...) |
| 475 | return |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 476 | } |
| 477 | |
Fumitoshi Ukai | 09fcd52 | 2015-07-15 14:31:50 +0900 | [diff] [blame] | 478 | func (p *parser) parseVpath(data []byte) { |
| 479 | vline, _ := removeComment(concatline(data)) |
| 480 | vline = trimLeftSpaceBytes(vline) |
| 481 | v, _, err := parseExpr(vline, nil, parseOp{}) |
| 482 | if err != nil { |
| 483 | p.err = p.srcpos().errorf("parse error %q: %v", string(vline), err) |
| 484 | return |
| 485 | } |
| 486 | vast := &vpathAST{ |
| 487 | expr: v, |
| 488 | } |
| 489 | vast.srcpos = p.srcpos() |
| 490 | p.addStatement(vast) |
| 491 | } |
| 492 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 493 | type directiveFunc func(*parser, []byte) |
| 494 | |
| 495 | var makeDirectives map[string]directiveFunc |
| 496 | |
| 497 | func init() { |
| 498 | makeDirectives = map[string]directiveFunc{ |
| 499 | "include": includeDirective, |
| 500 | "-include": sincludeDirective, |
| 501 | "sinclude": sincludeDirective, |
| 502 | "ifdef": ifdefDirective, |
| 503 | "ifndef": ifndefDirective, |
| 504 | "ifeq": ifeqDirective, |
| 505 | "ifneq": ifneqDirective, |
| 506 | "else": elseDirective, |
| 507 | "endif": endifDirective, |
| 508 | "define": defineDirective, |
| 509 | "override": overrideDirective, |
| 510 | "export": exportDirective, |
| 511 | "unexport": unexportDirective, |
Fumitoshi Ukai | 09fcd52 | 2015-07-15 14:31:50 +0900 | [diff] [blame] | 512 | "vpath": vpathDirective, |
Shinichiro Hamaji | e103f65 | 2015-04-11 19:49:51 +0900 | [diff] [blame] | 513 | } |
Shinichiro Hamaji | 74b8cb5 | 2015-04-08 19:47:43 +0900 | [diff] [blame] | 514 | } |
| 515 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 516 | func includeDirective(p *parser, data []byte) { |
| 517 | p.parseInclude("include", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 518 | } |
| 519 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 520 | func sincludeDirective(p *parser, data []byte) { |
| 521 | p.parseInclude("-include", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 522 | } |
| 523 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 524 | func ifdefDirective(p *parser, data []byte) { |
| 525 | p.parseIfdef("ifdef", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 526 | } |
| 527 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 528 | func ifndefDirective(p *parser, data []byte) { |
| 529 | p.parseIfdef("ifndef", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 530 | } |
| 531 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 532 | func ifeqDirective(p *parser, data []byte) { |
| 533 | p.parseIfeq("ifeq", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 534 | } |
| 535 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 536 | func ifneqDirective(p *parser, data []byte) { |
| 537 | p.parseIfeq("ifneq", data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 538 | } |
| 539 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 540 | func elseDirective(p *parser, data []byte) { |
| 541 | p.parseElse(data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 542 | } |
| 543 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 544 | func endifDirective(p *parser, data []byte) { |
| 545 | p.parseEndif(data) |
Fumitoshi Ukai | 8209630 | 2015-04-01 10:37:47 +0900 | [diff] [blame] | 546 | } |
| 547 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 548 | func defineDirective(p *parser, data []byte) { |
| 549 | p.parseDefine(data) |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 550 | } |
| 551 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 552 | func overrideDirective(p *parser, data []byte) { |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 553 | p.defOpt = "override" |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 554 | defineDirective := map[string]directiveFunc{ |
| 555 | "define": defineDirective, |
| 556 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 557 | glog.V(1).Infof("override define? %q", data) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 558 | if p.handleDirective(data, defineDirective) { |
| 559 | return |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 560 | } |
| 561 | // e.g. overrider foo := bar |
| 562 | // line will be "foo := bar". |
Fumitoshi Ukai | 4cb507f | 2015-07-07 11:46:58 +0900 | [diff] [blame] | 563 | if p.handleAssign(data) { |
| 564 | return |
| 565 | } |
| 566 | p.defOpt = "" |
| 567 | var line []byte |
| 568 | line = append(line, []byte("override ")...) |
| 569 | line = append(line, data...) |
| 570 | p.handleRuleOrAssign(line) |
Fumitoshi Ukai | f5b916d | 2015-07-15 15:57:19 +0900 | [diff] [blame] | 571 | // TODO(ukai): evaluate now to detect invalid "override" directive here? |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 572 | } |
| 573 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 574 | func handleExport(p *parser, data []byte, export bool) (hasEqual bool) { |
| 575 | i := bytes.IndexByte(data, '=') |
| 576 | if i > 0 { |
Shinichiro Hamaji | ea553f3 | 2015-05-29 17:03:33 +0900 | [diff] [blame] | 577 | hasEqual = true |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 578 | switch data[i-1] { |
Shinichiro Hamaji | ea553f3 | 2015-05-29 17:03:33 +0900 | [diff] [blame] | 579 | case ':', '+', '?': |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 580 | i-- |
Shinichiro Hamaji | ea553f3 | 2015-05-29 17:03:33 +0900 | [diff] [blame] | 581 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 582 | data = data[:i] |
Shinichiro Hamaji | ea553f3 | 2015-05-29 17:03:33 +0900 | [diff] [blame] | 583 | } |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 584 | east := &exportAST{ |
Fumitoshi Ukai | f5b916d | 2015-07-15 15:57:19 +0900 | [diff] [blame] | 585 | expr: data, |
| 586 | hasEqual: hasEqual, |
| 587 | export: export, |
Shinichiro Hamaji | 7e52142 | 2015-05-29 14:23:30 +0900 | [diff] [blame] | 588 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 589 | east.srcpos = p.srcpos() |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 590 | glog.V(1).Infof("export %v", east) |
Fumitoshi Ukai | 91ed5d7 | 2015-06-25 13:08:09 +0900 | [diff] [blame] | 591 | p.addStatement(east) |
Shinichiro Hamaji | ea553f3 | 2015-05-29 17:03:33 +0900 | [diff] [blame] | 592 | return hasEqual |
Shinichiro Hamaji | 7e52142 | 2015-05-29 14:23:30 +0900 | [diff] [blame] | 593 | } |
Shinichiro Hamaji | 07e76d5 | 2015-05-26 18:22:31 +0900 | [diff] [blame] | 594 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 595 | func exportDirective(p *parser, data []byte) { |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 596 | p.defOpt = "export" |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 597 | defineDirective := map[string]directiveFunc{ |
| 598 | "define": defineDirective, |
| 599 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 600 | glog.V(1).Infof("export define? %q", data) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 601 | if p.handleDirective(data, defineDirective) { |
| 602 | return |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 603 | } |
Shinichiro Hamaji | 07e76d5 | 2015-05-26 18:22:31 +0900 | [diff] [blame] | 604 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 605 | if !handleExport(p, data, true) { |
| 606 | return |
Shinichiro Hamaji | 07e76d5 | 2015-05-26 18:22:31 +0900 | [diff] [blame] | 607 | } |
| 608 | |
Fumitoshi Ukai | b2c300f | 2015-04-23 00:59:26 +0900 | [diff] [blame] | 609 | // e.g. export foo := bar |
| 610 | // line will be "foo := bar". |
Fumitoshi Ukai | bcb3b4b | 2015-07-07 18:00:13 +0900 | [diff] [blame] | 611 | p.handleAssign(data) |
Fumitoshi Ukai | 3d54db8 | 2015-04-01 11:03:31 +0900 | [diff] [blame] | 612 | } |
| 613 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 614 | func unexportDirective(p *parser, data []byte) { |
| 615 | handleExport(p, data, false) |
| 616 | return |
Shinichiro Hamaji | ca66857 | 2015-06-17 06:36:45 +0900 | [diff] [blame] | 617 | } |
| 618 | |
Fumitoshi Ukai | 09fcd52 | 2015-07-15 14:31:50 +0900 | [diff] [blame] | 619 | func vpathDirective(p *parser, data []byte) { |
| 620 | p.parseVpath(data) |
| 621 | } |
| 622 | |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 623 | func (p *parser) parse() (mk makefile, err error) { |
Shinichiro Hamaji | e184158 | 2015-03-30 17:20:33 +0900 | [diff] [blame] | 624 | for !p.done { |
Shinichiro Hamaji | 0b93c86 | 2015-04-07 06:15:15 +0900 | [diff] [blame] | 625 | line := p.readLine() |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 626 | if glog.V(1) { |
| 627 | glog.Infof("%s: %q", p.srcpos(), line) |
Fumitoshi Ukai | 2a2deb3 | 2015-07-08 11:46:14 +0900 | [diff] [blame] | 628 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 629 | if p.defineVar != nil { |
| 630 | p.processDefine(line) |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 631 | if p.err != nil { |
| 632 | return makefile{}, p.err |
| 633 | } |
Shinichiro Hamaji | 0b93c86 | 2015-04-07 06:15:15 +0900 | [diff] [blame] | 634 | continue |
| 635 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 636 | p.defOpt = "" |
| 637 | if p.inRecipe { |
| 638 | if len(line) > 0 && line[0] == '\t' { |
| 639 | cast := &commandAST{cmd: string(line[1:])} |
| 640 | cast.srcpos = p.srcpos() |
| 641 | p.addStatement(cast) |
Shinichiro Hamaji | 34e2324 | 2015-04-06 15:44:50 +0900 | [diff] [blame] | 642 | continue |
| 643 | } |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 644 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 645 | p.parseLine(line) |
| 646 | if p.err != nil { |
| 647 | return makefile{}, p.err |
Shinichiro Hamaji | 685fecf | 2015-03-30 18:28:12 +0900 | [diff] [blame] | 648 | } |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 649 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 650 | return p.mk, p.err |
Fumitoshi Ukai | 119dc91 | 2015-03-30 16:52:41 +0900 | [diff] [blame] | 651 | } |
| 652 | |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 653 | func (p *parser) parseLine(line []byte) { |
| 654 | cline := concatline(line) |
| 655 | if len(cline) == 0 { |
| 656 | return |
| 657 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 658 | if glog.V(1) { |
| 659 | glog.Infof("concatline:%q", cline) |
Fumitoshi Ukai | 2a2deb3 | 2015-07-08 11:46:14 +0900 | [diff] [blame] | 660 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 661 | var dline []byte |
| 662 | cline, _ = removeComment(cline) |
| 663 | dline = append(dline, cline...) |
| 664 | dline = trimSpaceBytes(dline) |
| 665 | if len(dline) == 0 { |
| 666 | return |
| 667 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 668 | if glog.V(1) { |
| 669 | glog.Infof("directive?: %q", dline) |
Fumitoshi Ukai | 2a2deb3 | 2015-07-08 11:46:14 +0900 | [diff] [blame] | 670 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 671 | if p.handleDirective(dline, makeDirectives) { |
| 672 | return |
| 673 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 674 | if glog.V(1) { |
| 675 | glog.Infof("rule or assign?: %q", line) |
Fumitoshi Ukai | 2a2deb3 | 2015-07-08 11:46:14 +0900 | [diff] [blame] | 676 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 677 | p.handleRuleOrAssign(line) |
| 678 | } |
| 679 | |
| 680 | func (p *parser) processDefine(line []byte) { |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 681 | line = append(line, '\n') |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 682 | line = concatline(line) |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 683 | if line[len(line)-1] != '\n' { |
| 684 | line = append(line, '\n') |
| 685 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 686 | if glog.V(1) { |
| 687 | glog.Infof("concatline:%q", line) |
Fumitoshi Ukai | 2a2deb3 | 2015-07-08 11:46:14 +0900 | [diff] [blame] | 688 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 689 | if !p.isEndef(line) { |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 690 | p.inDef = append(p.inDef, line...) |
Fumitoshi Ukai | 1d2c92d | 2015-07-07 12:10:20 +0900 | [diff] [blame] | 691 | if p.inDef == nil { |
| 692 | p.inDef = []byte{} |
| 693 | } |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 694 | return |
| 695 | } |
Fumitoshi Ukai | 1d92d8a | 2015-08-21 17:10:55 +0900 | [diff] [blame] | 696 | if p.inDef[len(p.inDef)-1] == '\n' { |
| 697 | p.inDef = p.inDef[:len(p.inDef)-1] |
| 698 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 699 | glog.V(1).Infof("multilineAssign %q %q", p.defineVar, p.inDef) |
Fumitoshi Ukai | b97be67 | 2015-07-02 15:12:48 +0900 | [diff] [blame] | 700 | aast, err := newAssignAST(p, p.defineVar, p.inDef, "=") |
| 701 | if err != nil { |
| 702 | p.err = p.srcpos().errorf("assign error %q=%q: %v", p.defineVar, p.inDef, err) |
| 703 | return |
| 704 | } |
| 705 | aast.srcpos = p.srcpos() |
| 706 | aast.srcpos.lineno -= bytes.Count(p.inDef, []byte{'\n'}) |
| 707 | p.addStatement(aast) |
| 708 | p.defineVar = nil |
| 709 | p.inDef = nil |
| 710 | return |
| 711 | } |
| 712 | |
| 713 | func (p *parser) isEndef(line []byte) bool { |
| 714 | if bytes.Equal(line, []byte("endef")) { |
| 715 | return true |
| 716 | } |
| 717 | w, data := firstWord(line) |
| 718 | if bytes.Equal(w, []byte("endef")) { |
| 719 | data, _ = removeComment(data) |
| 720 | data = trimLeftSpaceBytes(data) |
| 721 | if len(data) > 0 { |
| 722 | warnNoPrefix(p.srcpos(), `extraneous text after "endef" directive`) |
| 723 | } |
| 724 | return true |
| 725 | } |
| 726 | return false |
| 727 | } |
| 728 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 729 | func defaultMakefile() (string, error) { |
Shinichiro Hamaji | b0d2e2f | 2015-05-20 16:42:59 +0900 | [diff] [blame] | 730 | candidates := []string{"GNUmakefile", "makefile", "Makefile"} |
| 731 | for _, filename := range candidates { |
| 732 | if exists(filename) { |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 733 | return filename, nil |
Shinichiro Hamaji | b0d2e2f | 2015-05-20 16:42:59 +0900 | [diff] [blame] | 734 | } |
| 735 | } |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 736 | return "", errors.New("no targets specified and no makefile found") |
Shinichiro Hamaji | b0d2e2f | 2015-05-20 16:42:59 +0900 | [diff] [blame] | 737 | } |
| 738 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 739 | func parseMakefileReader(rd io.Reader, loc srcpos) (makefile, error) { |
| 740 | parser := newParser(rd, loc.filename) |
| 741 | parser.lineno = loc.lineno |
| 742 | parser.elineno = loc.lineno |
Shinichiro Hamaji | 370be72 | 2015-04-10 14:55:23 +0900 | [diff] [blame] | 743 | parser.linenoFixed = true |
Shinichiro Hamaji | a5dee37 | 2015-04-03 16:41:30 +0900 | [diff] [blame] | 744 | return parser.parse() |
Shinichiro Hamaji | c384081 | 2015-04-02 02:10:20 +0900 | [diff] [blame] | 745 | } |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 746 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 747 | func parseMakefileString(s string, loc srcpos) (makefile, error) { |
| 748 | return parseMakefileReader(strings.NewReader(s), loc) |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 749 | } |
| 750 | |
Fumitoshi Ukai | 65c7233 | 2015-06-26 21:32:50 +0900 | [diff] [blame] | 751 | func parseMakefileBytes(s []byte, loc srcpos) (makefile, error) { |
| 752 | return parseMakefileReader(bytes.NewReader(s), loc) |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 753 | } |
Shinichiro Hamaji | 45cde1d | 2015-05-25 18:21:23 +0900 | [diff] [blame] | 754 | |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 755 | type mkCacheEntry struct { |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 756 | mk makefile |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 757 | hash [sha1.Size]byte |
| 758 | err error |
| 759 | ts int64 |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 760 | } |
| 761 | |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 762 | type makefileCacheT struct { |
| 763 | mu sync.Mutex |
| 764 | mk map[string]mkCacheEntry |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 765 | } |
| 766 | |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 767 | var makefileCache = &makefileCacheT{ |
| 768 | mk: make(map[string]mkCacheEntry), |
| 769 | } |
| 770 | |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 771 | func (mc *makefileCacheT) lookup(filename string) (makefile, [sha1.Size]byte, bool, error) { |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 772 | var hash [sha1.Size]byte |
| 773 | mc.mu.Lock() |
| 774 | c, present := mc.mk[filename] |
| 775 | mc.mu.Unlock() |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 776 | if !present { |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 777 | return makefile{}, hash, false, nil |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 778 | } |
| 779 | ts := getTimestamp(filename) |
| 780 | if ts < 0 || ts >= c.ts { |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 781 | return makefile{}, hash, false, nil |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 782 | } |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 783 | return c.mk, c.hash, true, c.err |
| 784 | } |
| 785 | |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 786 | func (mc *makefileCacheT) parse(filename string) (makefile, [sha1.Size]byte, error) { |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 787 | glog.Infof("parse Makefile %q", filename) |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 788 | mk, hash, ok, err := makefileCache.lookup(filename) |
| 789 | if ok { |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 790 | if glog.V(1) { |
| 791 | glog.Infof("makefile cache hit for %q", filename) |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 792 | } |
| 793 | return mk, hash, err |
| 794 | } |
Fumitoshi Ukai | 6450d0f | 2015-07-10 16:34:06 +0900 | [diff] [blame] | 795 | if glog.V(1) { |
| 796 | glog.Infof("reading makefile %q", filename) |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 797 | } |
| 798 | c, err := ioutil.ReadFile(filename) |
| 799 | if err != nil { |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 800 | return makefile{}, hash, err |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 801 | } |
| 802 | hash = sha1.Sum(c) |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 803 | mk, err = parseMakefile(c, filename) |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 804 | if err != nil { |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 805 | return makefile{}, hash, err |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 806 | } |
| 807 | makefileCache.mu.Lock() |
| 808 | makefileCache.mk[filename] = mkCacheEntry{ |
| 809 | mk: mk, |
| 810 | hash: hash, |
| 811 | err: err, |
| 812 | ts: time.Now().Unix(), |
| 813 | } |
| 814 | makefileCache.mu.Unlock() |
| 815 | return mk, hash, err |
Shinichiro Hamaji | 584bb06 | 2015-06-04 13:25:13 +0900 | [diff] [blame] | 816 | } |
| 817 | |
Fumitoshi Ukai | 08eda65 | 2015-06-25 16:27:10 +0900 | [diff] [blame] | 818 | func parseMakefile(s []byte, filename string) (makefile, error) { |
Shinichiro Hamaji | 45cde1d | 2015-05-25 18:21:23 +0900 | [diff] [blame] | 819 | parser := newParser(bytes.NewReader(s), filename) |
Fumitoshi Ukai | 9042b99 | 2015-06-23 16:10:27 +0900 | [diff] [blame] | 820 | return parser.parse() |
Shinichiro Hamaji | 45cde1d | 2015-05-25 18:21:23 +0900 | [diff] [blame] | 821 | } |