Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 1 | package main |
| 2 | |
| 3 | import ( |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 4 | "bytes" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 5 | "fmt" |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 6 | "io" |
Shinichiro Hamaji | e7aafb0 | 2015-04-09 18:23:46 +0900 | [diff] [blame] | 7 | "os" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 8 | "os/exec" |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 9 | "path/filepath" |
Shinichiro Hamaji | 13b30d9 | 2015-04-03 14:42:21 +0900 | [diff] [blame] | 10 | "sort" |
Shinichiro Hamaji | e708a9d | 2015-04-03 14:34:35 +0900 | [diff] [blame] | 11 | "strconv" |
Fumitoshi Ukai | f2f8456 | 2015-03-30 19:47:45 +0900 | [diff] [blame] | 12 | "strings" |
| 13 | ) |
| 14 | |
| 15 | // Func is a make function. |
| 16 | // http://www.gnu.org/software/make/manual/make.html#Functions |
Fumitoshi Ukai | e520f26 | 2015-03-31 17:27:03 +0900 | [diff] [blame] | 17 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 18 | // Func is make builtin function. |
| 19 | type Func interface { |
| 20 | // Arity is max function's arity. |
| 21 | // ',' will not be handled as argument separator more than arity. |
| 22 | // 0 means varargs. |
| 23 | Arity() int |
| 24 | |
| 25 | // AddArg adds value as an argument. |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 26 | // the first argument will be "(funcname", or "{funcname". |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 27 | AddArg(Value) |
| 28 | |
| 29 | Value |
| 30 | } |
| 31 | |
| 32 | var ( |
| 33 | funcMap = map[string]func() Func{ |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 34 | "patsubst": func() Func { return &funcPatsubst{} }, |
| 35 | "strip": func() Func { return &funcStrip{} }, |
| 36 | "subst": func() Func { return &funcSubst{} }, |
| 37 | "findstring": func() Func { return &funcFindstring{} }, |
| 38 | "filter": func() Func { return &funcFilter{} }, |
| 39 | "filter-out": func() Func { return &funcFilterOut{} }, |
| 40 | "sort": func() Func { return &funcSort{} }, |
| 41 | "word": func() Func { return &funcWord{} }, |
| 42 | "wordlist": func() Func { return &funcWordlist{} }, |
| 43 | "words": func() Func { return &funcWords{} }, |
| 44 | "firstword": func() Func { return &funcFirstword{} }, |
| 45 | "lastword": func() Func { return &funcLastword{} }, |
| 46 | |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 47 | "join": func() Func { return &funcJoin{} }, |
| 48 | "wildcard": func() Func { return &funcWildcard{} }, |
| 49 | "dir": func() Func { return &funcDir{} }, |
| 50 | "notdir": func() Func { return &funcNotdir{} }, |
| 51 | "suffix": func() Func { return &funcSuffix{} }, |
| 52 | "basename": func() Func { return &funcBasename{} }, |
| 53 | "addsuffix": func() Func { return &funcAddsuffix{} }, |
| 54 | "addprefix": func() Func { return &funcAddprefix{} }, |
| 55 | "realpath": func() Func { return &funcRealpath{} }, |
| 56 | "abspath": func() Func { return &funcAbspath{} }, |
| 57 | |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 58 | "if": func() Func { return &funcIf{} }, |
| 59 | "and": func() Func { return &funcAnd{} }, |
| 60 | "or": func() Func { return &funcOr{} }, |
| 61 | |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 62 | "value": func() Func { return &funcValue{} }, |
| 63 | |
| 64 | "eval": func() Func { return &funcEval{} }, |
| 65 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 66 | "shell": func() Func { return &funcShell{} }, |
| 67 | "call": func() Func { return &funcCall{} }, |
| 68 | "foreach": func() Func { return &funcForeach{} }, |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 69 | |
| 70 | "origin": func() Func { return &funcOrigin{} }, |
| 71 | "flavor": func() Func { return &funcFlavor{} }, |
| 72 | "info": func() Func { return &funcInfo{} }, |
| 73 | "warning": func() Func { return &funcWarning{} }, |
| 74 | "error": func() Func { return &funcError{} }, |
Fumitoshi Ukai | 0b5e18b | 2015-04-03 22:57:17 +0900 | [diff] [blame] | 75 | } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 76 | ) |
| 77 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 78 | func assertArity(name string, req, n int) { |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 79 | if n-1 < req { |
| 80 | panic(fmt.Sprintf("*** insufficient number of arguments (%d) to function `%s'.", n-1, name)) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 81 | } |
| 82 | } |
| 83 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 84 | // A space separated values writer. |
| 85 | type ssvWriter struct { |
| 86 | w io.Writer |
| 87 | needsSpace bool |
| 88 | } |
| 89 | |
| 90 | func (sw *ssvWriter) Write(b []byte) { |
| 91 | if sw.needsSpace { |
| 92 | sw.w.Write([]byte{' '}) |
| 93 | } |
| 94 | sw.needsSpace = true |
| 95 | sw.w.Write(b) |
| 96 | } |
| 97 | |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 98 | func (sw *ssvWriter) WriteString(s string) { |
| 99 | // TODO: Ineffcient. Nice if we can remove the cast. |
| 100 | sw.Write([]byte(s)) |
| 101 | } |
| 102 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 103 | func numericValueForFunc(ev *Evaluator, v Value, funcName string, nth string) int { |
| 104 | a := bytes.TrimSpace(ev.Value(v)) |
| 105 | n, err := strconv.Atoi(string(a)) |
| 106 | if err != nil || n < 0 { |
| 107 | Error(ev.filename, ev.lineno, `*** non-numeric %s argument to "%s" function: "%s".`, nth, funcName, a) |
| 108 | } |
| 109 | return n |
| 110 | } |
| 111 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 112 | type fclosure struct { |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 113 | // args[0] is "(funcname", or "{funcname". |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 114 | args []Value |
| 115 | } |
| 116 | |
| 117 | func (c *fclosure) AddArg(v Value) { |
| 118 | c.args = append(c.args, v) |
Fumitoshi Ukai | 0b5e18b | 2015-04-03 22:57:17 +0900 | [diff] [blame] | 119 | } |
| 120 | |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 121 | func (c *fclosure) String() string { |
| 122 | if len(c.args) == 0 { |
| 123 | panic("no args in func") |
| 124 | } |
| 125 | arg0 := c.args[0].String() |
| 126 | if arg0 == "" { |
| 127 | panic(fmt.Errorf("wrong format of arg0: %q", arg0)) |
| 128 | } |
| 129 | cp := closeParen(arg0[0]) |
| 130 | if cp == 0 { |
| 131 | panic(fmt.Errorf("wrong format of arg0: %q", arg0)) |
| 132 | } |
| 133 | var args []string |
| 134 | for _, arg := range c.args[1:] { |
| 135 | args = append(args, arg.String()) |
| 136 | } |
| 137 | return fmt.Sprintf("$%s %s%c", arg0, strings.Join(args, ","), cp) |
| 138 | } |
Fumitoshi Ukai | 7878113 | 2015-04-10 17:08:40 +0900 | [diff] [blame] | 139 | |
Shinichiro Hamaji | 4125cf4 | 2015-04-03 11:42:28 +0900 | [diff] [blame] | 140 | // http://www.gnu.org/software/make/manual/make.html#Text-Functions |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 141 | type funcSubst struct{ fclosure } |
| 142 | |
| 143 | func (f *funcSubst) Arity() int { return 3 } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 144 | func (f *funcSubst) Eval(w io.Writer, ev *Evaluator) { |
| 145 | assertArity("subst", 3, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 146 | from := ev.Value(f.args[1]) |
| 147 | to := ev.Value(f.args[2]) |
| 148 | text := ev.Value(f.args[3]) |
Fumitoshi Ukai | bb79a9d | 2015-04-02 12:46:54 +0900 | [diff] [blame] | 149 | Log("subst from:%q to:%q text:%q", from, to, text) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 150 | w.Write(bytes.Replace(text, from, to, -1)) |
| 151 | } |
| 152 | |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 153 | type funcPatsubst struct{ fclosure } |
| 154 | |
| 155 | func (f *funcPatsubst) Arity() int { return 3 } |
| 156 | func (f *funcPatsubst) Eval(w io.Writer, ev *Evaluator) { |
| 157 | assertArity("patsubst", 3, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 158 | pat := ev.Value(f.args[1]) |
| 159 | repl := ev.Value(f.args[2]) |
| 160 | texts := splitSpacesBytes(ev.Value(f.args[3])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 161 | sw := ssvWriter{w: w} |
| 162 | for _, text := range texts { |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 163 | t := substPatternBytes(pat, repl, text) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 164 | sw.Write(t) |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 165 | } |
| 166 | } |
| 167 | |
| 168 | type funcStrip struct{ fclosure } |
| 169 | |
| 170 | func (f *funcStrip) Arity() int { return 1 } |
| 171 | func (f *funcStrip) Eval(w io.Writer, ev *Evaluator) { |
| 172 | assertArity("strip", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 173 | text := ev.Value(f.args[1]) |
Shinichiro Hamaji | 98e910d | 2015-04-11 10:38:44 +0900 | [diff] [blame] | 174 | w.Write(bytes.TrimSpace(text)) |
| 175 | } |
| 176 | |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 177 | type funcFindstring struct{ fclosure } |
| 178 | |
| 179 | func (f *funcFindstring) Arity() int { return 2 } |
| 180 | func (f *funcFindstring) Eval(w io.Writer, ev *Evaluator) { |
| 181 | assertArity("findstring", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 182 | find := ev.Value(f.args[1]) |
| 183 | text := ev.Value(f.args[2]) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 184 | if bytes.Index(text, find) >= 0 { |
| 185 | w.Write(find) |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | type funcFilter struct{ fclosure } |
| 190 | |
| 191 | func (f *funcFilter) Arity() int { return 2 } |
| 192 | func (f *funcFilter) Eval(w io.Writer, ev *Evaluator) { |
| 193 | assertArity("filter", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 194 | patterns := splitSpacesBytes(ev.Value(f.args[1])) |
| 195 | texts := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 196 | sw := ssvWriter{w: w} |
| 197 | for _, text := range texts { |
| 198 | for _, pat := range patterns { |
| 199 | if matchPatternBytes(pat, text) { |
| 200 | sw.Write(text) |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | type funcFilterOut struct{ fclosure } |
| 207 | |
| 208 | func (f *funcFilterOut) Arity() int { return 2 } |
| 209 | func (f *funcFilterOut) Eval(w io.Writer, ev *Evaluator) { |
| 210 | assertArity("filter-out", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 211 | patterns := splitSpacesBytes(ev.Value(f.args[1])) |
| 212 | texts := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 213 | sw := ssvWriter{w: w} |
| 214 | Loop: |
| 215 | for _, text := range texts { |
| 216 | for _, pat := range patterns { |
| 217 | if matchPatternBytes(pat, text) { |
| 218 | continue Loop |
| 219 | } |
| 220 | } |
| 221 | sw.Write(text) |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | type funcSort struct{ fclosure } |
| 226 | |
| 227 | func (f *funcSort) Arity() int { return 1 } |
| 228 | func (f *funcSort) Eval(w io.Writer, ev *Evaluator) { |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 229 | assertArity("sort", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 230 | toks := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 231 | sort.Strings(toks) |
| 232 | |
| 233 | // Remove duplicate words. |
| 234 | var prev string |
| 235 | sw := ssvWriter{w: w} |
| 236 | for _, tok := range toks { |
| 237 | if prev != tok { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 238 | sw.WriteString(tok) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 239 | prev = tok |
| 240 | } |
| 241 | } |
| 242 | } |
| 243 | |
| 244 | type funcWord struct{ fclosure } |
| 245 | |
| 246 | func (f *funcWord) Arity() int { return 2 } |
| 247 | func (f *funcWord) Eval(w io.Writer, ev *Evaluator) { |
| 248 | assertArity("word", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 249 | index := numericValueForFunc(ev, f.args[1], "word", "first") |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 250 | if index == 0 { |
| 251 | Error(ev.filename, ev.lineno, `*** first argument to "word" function must be greater than 0.`) |
| 252 | } |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 253 | toks := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 254 | if index-1 >= len(toks) { |
| 255 | return |
| 256 | } |
| 257 | w.Write(toks[index-1]) |
| 258 | } |
| 259 | |
| 260 | type funcWordlist struct{ fclosure } |
| 261 | |
| 262 | func (f *funcWordlist) Arity() int { return 3 } |
| 263 | func (f *funcWordlist) Eval(w io.Writer, ev *Evaluator) { |
| 264 | assertArity("wordlist", 3, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 265 | si := numericValueForFunc(ev, f.args[1], "wordlist", "first") |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 266 | if si == 0 { |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 267 | Error(ev.filename, ev.lineno, `*** invalid first argument to "wordlist" function: %s`, f.args[1]) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 268 | } |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 269 | ei := numericValueForFunc(ev, f.args[2], "wordlist", "second") |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 270 | if ei == 0 { |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 271 | Error(ev.filename, ev.lineno, `*** invalid second argument to "wordlist" function: %s`, f.args[2]) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 272 | } |
| 273 | |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 274 | toks := splitSpacesBytes(ev.Value(f.args[3])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 275 | if si-1 >= len(toks) { |
| 276 | return |
| 277 | } |
| 278 | if ei-1 >= len(toks) { |
| 279 | ei = len(toks) |
| 280 | } |
| 281 | |
| 282 | sw := ssvWriter{w: w} |
| 283 | for _, t := range toks[si-1 : ei] { |
| 284 | sw.Write(t) |
| 285 | } |
| 286 | } |
| 287 | |
| 288 | type funcWords struct{ fclosure } |
| 289 | |
| 290 | func (f *funcWords) Arity() int { return 1 } |
| 291 | func (f *funcWords) Eval(w io.Writer, ev *Evaluator) { |
| 292 | assertArity("words", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 293 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 294 | w.Write([]byte(strconv.Itoa(len(toks)))) |
| 295 | } |
| 296 | |
| 297 | type funcFirstword struct{ fclosure } |
| 298 | |
| 299 | func (f *funcFirstword) Arity() int { return 1 } |
| 300 | func (f *funcFirstword) Eval(w io.Writer, ev *Evaluator) { |
| 301 | assertArity("firstword", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 302 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 303 | if len(toks) == 0 { |
| 304 | return |
| 305 | } |
| 306 | w.Write(toks[0]) |
| 307 | } |
| 308 | |
| 309 | type funcLastword struct{ fclosure } |
| 310 | |
| 311 | func (f *funcLastword) Arity() int { return 1 } |
| 312 | func (f *funcLastword) Eval(w io.Writer, ev *Evaluator) { |
| 313 | assertArity("lastword", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 314 | toks := splitSpacesBytes(ev.Value(f.args[1])) |
Shinichiro Hamaji | 05b222d | 2015-04-11 11:36:37 +0900 | [diff] [blame] | 315 | if len(toks) == 0 { |
| 316 | return |
| 317 | } |
| 318 | w.Write(toks[len(toks)-1]) |
| 319 | } |
| 320 | |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 321 | // https://www.gnu.org/software/make/manual/html_node/File-Name-Functions.html#File-Name-Functions |
| 322 | |
| 323 | type funcJoin struct{ fclosure } |
| 324 | |
| 325 | func (f *funcJoin) Arity() int { return 2 } |
| 326 | func (f *funcJoin) Eval(w io.Writer, ev *Evaluator) { |
| 327 | assertArity("join", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 328 | list1 := splitSpacesBytes(ev.Value(f.args[1])) |
| 329 | list2 := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 330 | sw := ssvWriter{w: w} |
| 331 | for i, v := range list1 { |
| 332 | if i < len(list2) { |
| 333 | sw.Write(v) |
| 334 | // Use |w| not to append extra ' '. |
| 335 | w.Write(list2[i]) |
| 336 | continue |
| 337 | } |
| 338 | sw.Write(v) |
| 339 | } |
| 340 | if len(list2) > len(list1) { |
| 341 | for _, v := range list2[len(list1):] { |
| 342 | sw.Write(v) |
| 343 | } |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | type funcWildcard struct{ fclosure } |
| 348 | |
| 349 | func (f *funcWildcard) Arity() int { return 1 } |
| 350 | func (f *funcWildcard) Eval(w io.Writer, ev *Evaluator) { |
| 351 | assertArity("wildcard", 1, len(f.args)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 352 | sw := ssvWriter{w: w} |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 353 | for _, pattern := range splitSpaces(string(ev.Value(f.args[1]))) { |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 354 | files, err := filepath.Glob(pattern) |
| 355 | if err != nil { |
| 356 | panic(err) |
| 357 | } |
| 358 | for _, file := range files { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 359 | sw.WriteString(file) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 360 | } |
| 361 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 362 | } |
| 363 | |
| 364 | type funcDir struct{ fclosure } |
| 365 | |
| 366 | func (f *funcDir) Arity() int { return 1 } |
| 367 | func (f *funcDir) Eval(w io.Writer, ev *Evaluator) { |
| 368 | assertArity("dir", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 369 | names := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 370 | sw := ssvWriter{w: w} |
| 371 | for _, name := range names { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 372 | sw.WriteString(filepath.Dir(name) + string(filepath.Separator)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 373 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | type funcNotdir struct{ fclosure } |
| 377 | |
| 378 | func (f *funcNotdir) Arity() int { return 1 } |
| 379 | func (f *funcNotdir) Eval(w io.Writer, ev *Evaluator) { |
| 380 | assertArity("notdir", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 381 | names := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 382 | sw := ssvWriter{w: w} |
| 383 | for _, name := range names { |
| 384 | if name == string(filepath.Separator) { |
| 385 | sw.Write([]byte{}) |
| 386 | continue |
| 387 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 388 | sw.WriteString(filepath.Base(name)) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 389 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 390 | } |
| 391 | |
| 392 | type funcSuffix struct{ fclosure } |
| 393 | |
| 394 | func (f *funcSuffix) Arity() int { return 1 } |
| 395 | func (f *funcSuffix) Eval(w io.Writer, ev *Evaluator) { |
| 396 | assertArity("suffix", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 397 | toks := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 398 | sw := ssvWriter{w: w} |
| 399 | for _, tok := range toks { |
| 400 | e := filepath.Ext(tok) |
| 401 | if len(e) > 0 { |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 402 | sw.WriteString(e) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 403 | } |
| 404 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 405 | } |
| 406 | |
| 407 | type funcBasename struct{ fclosure } |
| 408 | |
| 409 | func (f *funcBasename) Arity() int { return 1 } |
| 410 | func (f *funcBasename) Eval(w io.Writer, ev *Evaluator) { |
| 411 | assertArity("basename", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 412 | toks := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 413 | sw := ssvWriter{w: w} |
| 414 | for _, tok := range toks { |
| 415 | e := stripExt(tok) |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 416 | sw.WriteString(e) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 417 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | type funcAddsuffix struct{ fclosure } |
| 421 | |
| 422 | func (f *funcAddsuffix) Arity() int { return 2 } |
| 423 | func (f *funcAddsuffix) Eval(w io.Writer, ev *Evaluator) { |
| 424 | assertArity("addsuffix", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 425 | suf := ev.Value(f.args[1]) |
| 426 | toks := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 427 | sw := ssvWriter{w: w} |
| 428 | for _, tok := range toks { |
| 429 | sw.Write(tok) |
| 430 | // Use |w| not to append extra ' '. |
| 431 | w.Write(suf) |
| 432 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 433 | } |
| 434 | |
| 435 | type funcAddprefix struct{ fclosure } |
| 436 | |
| 437 | func (f *funcAddprefix) Arity() int { return 2 } |
| 438 | func (f *funcAddprefix) Eval(w io.Writer, ev *Evaluator) { |
| 439 | assertArity("addprefix", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 440 | pre := ev.Value(f.args[1]) |
| 441 | toks := splitSpacesBytes(ev.Value(f.args[2])) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 442 | sw := ssvWriter{w: w} |
| 443 | for _, tok := range toks { |
| 444 | sw.Write(pre) |
| 445 | // Use |w| not to append extra ' '. |
| 446 | w.Write(tok) |
| 447 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 448 | } |
| 449 | |
| 450 | type funcRealpath struct{ fclosure } |
| 451 | |
| 452 | func (f *funcRealpath) Arity() int { return 1 } |
| 453 | func (f *funcRealpath) Eval(w io.Writer, ev *Evaluator) { |
| 454 | assertArity("realpath", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 455 | names := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 456 | sw := ssvWriter{w: w} |
| 457 | for _, name := range names { |
| 458 | name, err := filepath.Abs(name) |
| 459 | if err != nil { |
| 460 | Log("abs: %v", err) |
| 461 | continue |
| 462 | } |
| 463 | name, err = filepath.EvalSymlinks(name) |
| 464 | if err != nil { |
| 465 | Log("realpath: %v", err) |
| 466 | continue |
| 467 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 468 | sw.WriteString(name) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 469 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 470 | } |
| 471 | |
| 472 | type funcAbspath struct{ fclosure } |
| 473 | |
| 474 | func (f *funcAbspath) Arity() int { return 1 } |
| 475 | func (f *funcAbspath) Eval(w io.Writer, ev *Evaluator) { |
| 476 | assertArity("abspath", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 477 | names := splitSpaces(string(ev.Value(f.args[1]))) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 478 | sw := ssvWriter{w: w} |
| 479 | for _, name := range names { |
| 480 | name, err := filepath.Abs(name) |
| 481 | if err != nil { |
| 482 | Log("abs: %v", err) |
| 483 | continue |
| 484 | } |
Shinichiro Hamaji | a135891 | 2015-04-11 12:16:21 +0900 | [diff] [blame] | 485 | sw.WriteString(name) |
Shinichiro Hamaji | af61af2 | 2015-04-11 12:13:22 +0900 | [diff] [blame] | 486 | } |
Shinichiro Hamaji | c20b84d | 2015-04-11 12:02:51 +0900 | [diff] [blame] | 487 | } |
| 488 | |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 489 | // http://www.gnu.org/software/make/manual/make.html#Conditional-Functions |
| 490 | type funcIf struct{ fclosure } |
| 491 | |
| 492 | func (f *funcIf) Arity() int { return 3 } |
| 493 | func (f *funcIf) Eval(w io.Writer, ev *Evaluator) { |
| 494 | assertArity("if", 2, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 495 | cond := ev.Value(f.args[1]) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 496 | if len(cond) != 0 { |
Fumitoshi Ukai | e27a25d | 2015-04-18 00:31:01 +0900 | [diff] [blame] | 497 | f.args[2].Eval(w, ev) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 498 | return |
| 499 | } |
Fumitoshi Ukai | e27a25d | 2015-04-18 00:31:01 +0900 | [diff] [blame] | 500 | if len(f.args) > 3 { |
| 501 | f.args[3].Eval(w, ev) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 502 | } |
| 503 | } |
| 504 | |
| 505 | type funcAnd struct{ fclosure } |
| 506 | |
| 507 | func (f *funcAnd) Arity() int { return 0 } |
| 508 | func (f *funcAnd) Eval(w io.Writer, ev *Evaluator) { |
| 509 | assertArity("and", 0, len(f.args)) |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 510 | var cond []byte |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 511 | for _, arg := range f.args[1:] { |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 512 | cond = ev.Value(arg) |
| 513 | if len(cond) == 0 { |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 514 | return |
| 515 | } |
| 516 | } |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 517 | w.Write(cond) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 518 | } |
| 519 | |
| 520 | type funcOr struct{ fclosure } |
| 521 | |
| 522 | func (f *funcOr) Arity() int { return 0 } |
| 523 | func (f *funcOr) Eval(w io.Writer, ev *Evaluator) { |
| 524 | assertArity("or", 0, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 525 | for _, arg := range f.args[1:] { |
Shinichiro Hamaji | 2216dd6 | 2015-04-11 13:44:39 +0900 | [diff] [blame] | 526 | cond := ev.Value(arg) |
| 527 | if len(cond) != 0 { |
| 528 | w.Write(cond) |
Shinichiro Hamaji | 424baeb | 2015-04-11 12:35:42 +0900 | [diff] [blame] | 529 | return |
| 530 | } |
| 531 | } |
| 532 | } |
| 533 | |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 534 | // http://www.gnu.org/software/make/manual/make.html#Shell-Function |
| 535 | type funcShell struct{ fclosure } |
| 536 | |
| 537 | func (f *funcShell) Arity() int { return 1 } |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 538 | |
| 539 | func (f *funcShell) Eval(w io.Writer, ev *Evaluator) { |
| 540 | assertArity("shell", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 541 | arg := ev.Value(f.args[1]) |
Shinichiro Hamaji | 89551c9 | 2015-04-11 19:33:03 +0900 | [diff] [blame] | 542 | shellVar := ev.LookupVar("SHELL") |
| 543 | // TODO: Should be Eval, not String. |
| 544 | cmdline := []string{shellVar.String(), "-c", string(arg)} |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 545 | cmd := exec.Cmd{ |
| 546 | Path: cmdline[0], |
| 547 | Args: cmdline, |
| 548 | Stderr: os.Stderr, |
| 549 | } |
| 550 | out, err := cmd.Output() |
| 551 | if err != nil { |
| 552 | Log("$(shell %q) failed: %q", arg, err) |
| 553 | } |
| 554 | |
Fumitoshi Ukai | 5541c7e | 2015-04-18 22:47:03 +0900 | [diff] [blame] | 555 | out = bytes.TrimRight(out, "\n") |
| 556 | out = bytes.Replace(out, []byte{'\n'}, []byte{' '}, -1) |
| 557 | w.Write(out) |
Fumitoshi Ukai | b36f387 | 2015-04-10 15:06:38 +0900 | [diff] [blame] | 558 | } |
| 559 | |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 560 | // https://www.gnu.org/software/make/manual/html_node/Call-Function.html#Call-Function |
| 561 | type funcCall struct{ fclosure } |
| 562 | |
| 563 | func (f *funcCall) Arity() int { return 0 } |
| 564 | |
| 565 | func (f *funcCall) Eval(w io.Writer, ev *Evaluator) { |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 566 | variable := ev.Value(f.args[1]) |
| 567 | Log("call %q variable %q", f.args[1], variable) |
| 568 | v := ev.LookupVar(string(variable)) |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 569 | // Evalualte all arguments first before we modify the table. |
Shinichiro Hamaji | 39728f1 | 2015-04-11 20:12:23 +0900 | [diff] [blame] | 570 | var args []tmpval |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 571 | // $0 is variable. |
| 572 | args = append(args, tmpval(variable)) |
| 573 | // TODO(ukai): If variable is the name of a built-in function, |
| 574 | // the built-in function is always invoked (even if a make variable |
| 575 | // by that name also exists). |
| 576 | |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 577 | for i, arg := range f.args[2:] { |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 578 | // f.args[2] will be $1. |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 579 | args = append(args, tmpval(ev.Value(arg))) |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 580 | Log("call $%d: %q=>%q", i+1, arg, args[i+1]) |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 581 | } |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 582 | oldParams := ev.paramVars |
| 583 | ev.paramVars = args |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 584 | |
Fumitoshi Ukai | 9b10ecf | 2015-04-15 17:45:50 +0900 | [diff] [blame] | 585 | var restores []func() |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 586 | for i, arg := range args { |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 587 | name := fmt.Sprintf("%d", i) |
Fumitoshi Ukai | 9b10ecf | 2015-04-15 17:45:50 +0900 | [diff] [blame] | 588 | restores = append(restores, ev.outVars.save(name)) |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 589 | ev.outVars.Assign(name, SimpleVar{ |
| 590 | value: arg, |
| 591 | origin: "automatic", // ?? |
| 592 | }) |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | var buf bytes.Buffer |
Fumitoshi Ukai | e27a25d | 2015-04-18 00:31:01 +0900 | [diff] [blame] | 596 | if katiLogFlag { |
| 597 | w = io.MultiWriter(w, &buf) |
| 598 | } |
| 599 | v.Eval(w, ev) |
Fumitoshi Ukai | 9b10ecf | 2015-04-15 17:45:50 +0900 | [diff] [blame] | 600 | for _, restore := range restores { |
| 601 | restore() |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 602 | } |
Fumitoshi Ukai | f0a2ba7 | 2015-04-19 00:02:32 +0900 | [diff] [blame] | 603 | ev.paramVars = oldParams |
| 604 | Log("call %q variable %q return %q", f.args[1], variable, buf.Bytes()) |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 605 | } |
| 606 | |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 607 | // http://www.gnu.org/software/make/manual/make.html#Value-Function |
| 608 | type funcValue struct{ fclosure } |
| 609 | |
| 610 | func (f *funcValue) Arity() int { return 1 } |
| 611 | func (f *funcValue) Eval(w io.Writer, ev *Evaluator) { |
| 612 | assertArity("value", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 613 | v := ev.LookupVar(f.args[1].String()) |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 614 | w.Write([]byte(v.String())) |
| 615 | } |
| 616 | |
| 617 | // http://www.gnu.org/software/make/manual/make.html#Eval-Function |
| 618 | type funcEval struct{ fclosure } |
| 619 | |
| 620 | func (f *funcEval) Arity() int { return 1 } |
| 621 | func (f *funcEval) Eval(w io.Writer, ev *Evaluator) { |
| 622 | assertArity("eval", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 623 | s := ev.Value(f.args[1]) |
Shinichiro Hamaji | 28ea5bc | 2015-04-11 12:41:08 +0900 | [diff] [blame] | 624 | mk, err := ParseMakefileBytes(s, ev.filename, ev.lineno) |
| 625 | if err != nil { |
| 626 | panic(err) |
| 627 | } |
| 628 | |
| 629 | for _, stmt := range mk.stmts { |
| 630 | ev.eval(stmt) |
| 631 | } |
| 632 | } |
| 633 | |
Fumitoshi Ukai | 9f6b635 | 2015-04-16 16:25:09 +0900 | [diff] [blame] | 634 | func (f *funcEval) Compact() Value { |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 635 | if len(f.args)-1 < 1 { |
| 636 | return f |
| 637 | } |
Shinichiro Hamaji | 74536e6 | 2015-04-21 15:40:34 +0900 | [diff] [blame^] | 638 | switch f.args[1].(type) { |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 639 | case literal, tmpval: |
| 640 | default: |
Shinichiro Hamaji | 74536e6 | 2015-04-21 15:40:34 +0900 | [diff] [blame^] | 641 | // TODO(ukai): eval -> varassign. e.g. $(eval foo := $(x)) |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 642 | return f |
| 643 | } |
| 644 | arg := f.args[1].String() |
| 645 | arg = stripComment(arg) |
Shinichiro Hamaji | 74536e6 | 2015-04-21 15:40:34 +0900 | [diff] [blame^] | 646 | if arg == "" { |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 647 | return &funcNop{expr: f.String()} |
| 648 | } |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 649 | f.args[1] = literal(arg) |
Shinichiro Hamaji | 74536e6 | 2015-04-21 15:40:34 +0900 | [diff] [blame^] | 650 | eq := strings.Index(arg, "=") |
| 651 | if eq >= 0 { |
| 652 | // TODO(ukai): factor out parse assign? |
| 653 | lhs := arg[:eq] |
| 654 | op := arg[eq : eq+1] |
| 655 | if eq >= 1 && (arg[eq-1] == ':' || arg[eq-1] == '+' || arg[eq-1] == '?') { |
| 656 | lhs = arg[:eq-1] |
| 657 | op = arg[eq-1 : eq+1] |
| 658 | } |
| 659 | lhs = strings.TrimSpace(lhs) |
| 660 | // no $... in rhs too. |
| 661 | rhs := literal(strings.TrimLeft(arg[eq+1:], " \t")) |
| 662 | if strings.IndexAny(lhs, ":$") >= 0 { |
| 663 | // target specific var define? or need eval. |
| 664 | return f |
| 665 | } |
| 666 | if strings.Index(string(rhs), "$") >= 0 { |
| 667 | // need eval. e.g. rhs was "$$(foo)", it is literal |
| 668 | // "$(foo)", so need eval at runtime. |
| 669 | // TODO(ukai): make it funcEvalAssign. |
| 670 | return f |
| 671 | } |
Fumitoshi Ukai | 150c861 | 2015-04-16 15:35:44 +0900 | [diff] [blame] | 672 | return &funcEvalAssign{ |
| 673 | lhs: lhs, |
| 674 | op: op, |
| 675 | rhs: rhs, |
| 676 | } |
| 677 | } |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 678 | return f |
| 679 | } |
| 680 | |
| 681 | func stripComment(arg string) string { |
| 682 | for { |
| 683 | i := strings.Index(arg, "#") |
| 684 | if i < 0 { |
| 685 | return arg |
| 686 | } |
| 687 | eol := strings.Index(arg[i:], "\n") |
| 688 | if eol < 0 { |
| 689 | return arg[:i] |
| 690 | } |
| 691 | arg = arg[:i] + arg[eol+1:] |
| 692 | } |
| 693 | } |
| 694 | |
| 695 | type funcNop struct{ expr string } |
| 696 | |
Fumitoshi Ukai | da7f255 | 2015-04-16 13:33:37 +0900 | [diff] [blame] | 697 | func (f *funcNop) String() string { return f.expr } |
| 698 | func (f *funcNop) Eval(io.Writer, *Evaluator) {} |
| 699 | |
Fumitoshi Ukai | 150c861 | 2015-04-16 15:35:44 +0900 | [diff] [blame] | 700 | type funcEvalAssign struct { |
| 701 | lhs string |
| 702 | op string |
| 703 | rhs Value |
| 704 | } |
| 705 | |
Fumitoshi Ukai | 150c861 | 2015-04-16 15:35:44 +0900 | [diff] [blame] | 706 | func (f *funcEvalAssign) String() string { |
| 707 | return fmt.Sprintf("$(eval %s %s %s)", f.lhs, f.op, f.rhs) |
| 708 | } |
| 709 | |
| 710 | func (f *funcEvalAssign) Eval(w io.Writer, ev *Evaluator) { |
| 711 | rhs := ev.Value(f.rhs) |
| 712 | var rvalue Var |
| 713 | switch f.op { |
| 714 | case ":=": |
Fumitoshi Ukai | fa5e922 | 2015-04-17 11:45:20 +0900 | [diff] [blame] | 715 | expr, _, err := parseExpr(rhs, nil) |
| 716 | if err != nil { |
| 717 | panic(fmt.Sprintf("eval assign error: %q: %v", f.String(), err)) |
| 718 | } |
| 719 | rvalue = SimpleVar{value: tmpval(ev.Value(expr)), origin: "file"} |
Fumitoshi Ukai | 150c861 | 2015-04-16 15:35:44 +0900 | [diff] [blame] | 720 | case "=": |
| 721 | rvalue = RecursiveVar{expr: tmpval(rhs), origin: "file"} |
| 722 | case "+=": |
| 723 | prev := ev.LookupVar(f.lhs) |
Shinichiro Hamaji | 74536e6 | 2015-04-21 15:40:34 +0900 | [diff] [blame^] | 724 | if !prev.IsDefined() { |
Fumitoshi Ukai | 150c861 | 2015-04-16 15:35:44 +0900 | [diff] [blame] | 725 | rvalue = prev.Append(ev, string(rhs)) |
| 726 | } else { |
| 727 | rvalue = RecursiveVar{expr: tmpval(rhs), origin: "file"} |
| 728 | } |
| 729 | case "?=": |
| 730 | prev := ev.LookupVar(f.lhs) |
| 731 | if prev.IsDefined() { |
| 732 | return |
| 733 | } |
| 734 | rvalue = RecursiveVar{expr: tmpval(rhs), origin: "file"} |
| 735 | } |
| 736 | ev.outVars.Assign(f.lhs, rvalue) |
| 737 | } |
| 738 | |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 739 | // http://www.gnu.org/software/make/manual/make.html#Origin-Function |
| 740 | type funcOrigin struct{ fclosure } |
| 741 | |
| 742 | func (f *funcOrigin) Arity() int { return 1 } |
| 743 | func (f *funcOrigin) Eval(w io.Writer, ev *Evaluator) { |
| 744 | assertArity("origin", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 745 | v := ev.LookupVar(f.args[1].String()) |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 746 | w.Write([]byte(v.Origin())) |
| 747 | } |
| 748 | |
| 749 | // https://www.gnu.org/software/make/manual/html_node/Flavor-Function.html#Flavor-Function |
| 750 | type funcFlavor struct{ fclosure } |
| 751 | |
| 752 | func (f *funcFlavor) Arity() int { return 1 } |
| 753 | func (f *funcFlavor) Eval(w io.Writer, ev *Evaluator) { |
| 754 | assertArity("flavor", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 755 | v := ev.LookupVar(f.args[1].String()) |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 756 | w.Write([]byte(v.Flavor())) |
| 757 | } |
| 758 | |
| 759 | // http://www.gnu.org/software/make/manual/make.html#Make-Control-Functions |
| 760 | type funcInfo struct{ fclosure } |
| 761 | |
| 762 | func (f *funcInfo) Arity() int { return 1 } |
| 763 | func (f *funcInfo) Eval(w io.Writer, ev *Evaluator) { |
| 764 | assertArity("info", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 765 | arg := ev.Value(f.args[1]) |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 766 | fmt.Printf("%s\n", arg) |
| 767 | } |
| 768 | |
| 769 | type funcWarning struct{ fclosure } |
| 770 | |
| 771 | func (f *funcWarning) Arity() int { return 1 } |
| 772 | func (f *funcWarning) Eval(w io.Writer, ev *Evaluator) { |
| 773 | assertArity("warning", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 774 | arg := ev.Value(f.args[1]) |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 775 | fmt.Printf("%s:%d: %s\n", ev.filename, ev.lineno, arg) |
| 776 | } |
| 777 | |
| 778 | type funcError struct{ fclosure } |
| 779 | |
| 780 | func (f *funcError) Arity() int { return 1 } |
| 781 | func (f *funcError) Eval(w io.Writer, ev *Evaluator) { |
| 782 | assertArity("error", 1, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 783 | arg := ev.Value(f.args[1]) |
Shinichiro Hamaji | 916f35f | 2015-04-11 12:46:19 +0900 | [diff] [blame] | 784 | Error(ev.filename, ev.lineno, "*** %s.", arg) |
| 785 | } |
| 786 | |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 787 | // http://www.gnu.org/software/make/manual/make.html#Foreach-Function |
| 788 | type funcForeach struct{ fclosure } |
| 789 | |
| 790 | func (f *funcForeach) Arity() int { return 3 } |
| 791 | |
| 792 | func (f *funcForeach) Eval(w io.Writer, ev *Evaluator) { |
| 793 | assertArity("foreach", 3, len(f.args)) |
Fumitoshi Ukai | b2670d9 | 2015-04-16 10:28:27 +0900 | [diff] [blame] | 794 | varname := string(ev.Value(f.args[1])) |
| 795 | list := ev.Values(f.args[2]) |
| 796 | text := f.args[3] |
Fumitoshi Ukai | 9b10ecf | 2015-04-15 17:45:50 +0900 | [diff] [blame] | 797 | restore := ev.outVars.save(varname) |
| 798 | defer restore() |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 799 | space := false |
| 800 | for _, word := range list { |
| 801 | ev.outVars.Assign(varname, |
| 802 | SimpleVar{ |
Shinichiro Hamaji | 39728f1 | 2015-04-11 20:12:23 +0900 | [diff] [blame] | 803 | value: word, |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 804 | origin: "automatic", |
| 805 | }) |
| 806 | if space { |
| 807 | w.Write([]byte{' '}) |
| 808 | } |
Fumitoshi Ukai | e27a25d | 2015-04-18 00:31:01 +0900 | [diff] [blame] | 809 | text.Eval(w, ev) |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 810 | space = true |
| 811 | } |
Fumitoshi Ukai | d2bcf66 | 2015-04-11 01:02:27 +0900 | [diff] [blame] | 812 | } |