| 1 | #! /usr/bin/env python |
|---|
| 2 | # encoding: utf-8 |
|---|
| 3 | # WARNING! Do not edit! http://waf.googlecode.com/git/docs/wafbook/single.html#_obtaining_the_waf_file |
|---|
| 4 | |
|---|
| 5 | import re,string,traceback |
|---|
| 6 | from waflib import Logs,Utils,Errors |
|---|
| 7 | from waflib.Logs import debug,error |
|---|
| 8 | class PreprocError(Errors.WafError): |
|---|
| 9 | pass |
|---|
| 10 | POPFILE='-' |
|---|
| 11 | recursion_limit=150 |
|---|
| 12 | go_absolute=False |
|---|
| 13 | standard_includes=['/usr/include'] |
|---|
| 14 | if Utils.is_win32: |
|---|
| 15 | standard_includes=[] |
|---|
| 16 | use_trigraphs=0 |
|---|
| 17 | strict_quotes=0 |
|---|
| 18 | g_optrans={'not':'!','and':'&&','bitand':'&','and_eq':'&=','or':'||','bitor':'|','or_eq':'|=','xor':'^','xor_eq':'^=','compl':'~',} |
|---|
| 19 | re_lines=re.compile('^[ \t]*(#|%:)[ \t]*(ifdef|ifndef|if|else|elif|endif|include|import|define|undef|pragma)[ \t]*(.*)\r*$',re.IGNORECASE|re.MULTILINE) |
|---|
| 20 | re_mac=re.compile("^[a-zA-Z_]\w*") |
|---|
| 21 | re_fun=re.compile('^[a-zA-Z_][a-zA-Z0-9_]*[(]') |
|---|
| 22 | re_pragma_once=re.compile('^\s*once\s*',re.IGNORECASE) |
|---|
| 23 | re_nl=re.compile('\\\\\r*\n',re.MULTILINE) |
|---|
| 24 | re_cpp=re.compile(r'//.*?$|/\*.*?\*/|\'(?:\\.|[^\\\'])*\'|"(?:\\.|[^\\"])*"',re.DOTALL|re.MULTILINE) |
|---|
| 25 | trig_def=[('??'+a,b)for a,b in zip("=-/!'()<>",r'#~\|^[]{}')] |
|---|
| 26 | chr_esc={'0':0,'a':7,'b':8,'t':9,'n':10,'f':11,'v':12,'r':13,'\\':92,"'":39} |
|---|
| 27 | NUM='i' |
|---|
| 28 | OP='O' |
|---|
| 29 | IDENT='T' |
|---|
| 30 | STR='s' |
|---|
| 31 | CHAR='c' |
|---|
| 32 | tok_types=[NUM,STR,IDENT,OP] |
|---|
| 33 | exp_types=[r"""0[xX](?P<hex>[a-fA-F0-9]+)(?P<qual1>[uUlL]*)|L*?'(?P<char>(\\.|[^\\'])+)'|(?P<n1>\d+)[Ee](?P<exp0>[+-]*?\d+)(?P<float0>[fFlL]*)|(?P<n2>\d*\.\d+)([Ee](?P<exp1>[+-]*?\d+))?(?P<float1>[fFlL]*)|(?P<n4>\d+\.\d*)([Ee](?P<exp2>[+-]*?\d+))?(?P<float2>[fFlL]*)|(?P<oct>0*)(?P<n0>\d+)(?P<qual2>[uUlL]*)""",r'L?"([^"\\]|\\.)*"',r'[a-zA-Z_]\w*',r'%:%:|<<=|>>=|\.\.\.|<<|<%|<:|<=|>>|>=|\+\+|\+=|--|->|-=|\*=|/=|%:|%=|%>|==|&&|&=|\|\||\|=|\^=|:>|!=|##|[\(\)\{\}\[\]<>\?\|\^\*\+&=:!#;,%/\-\?\~\.]',] |
|---|
| 34 | re_clexer=re.compile('|'.join(["(?P<%s>%s)"%(name,part)for name,part in zip(tok_types,exp_types)]),re.M) |
|---|
| 35 | accepted='a' |
|---|
| 36 | ignored='i' |
|---|
| 37 | undefined='u' |
|---|
| 38 | skipped='s' |
|---|
| 39 | def repl(m): |
|---|
| 40 | s=m.group(0) |
|---|
| 41 | if s.startswith('/'): |
|---|
| 42 | return' ' |
|---|
| 43 | return s |
|---|
| 44 | def filter_comments(filename): |
|---|
| 45 | code=Utils.readf(filename) |
|---|
| 46 | if use_trigraphs: |
|---|
| 47 | for(a,b)in trig_def:code=code.split(a).join(b) |
|---|
| 48 | code=re_nl.sub('',code) |
|---|
| 49 | code=re_cpp.sub(repl,code) |
|---|
| 50 | return[(m.group(2),m.group(3))for m in re.finditer(re_lines,code)] |
|---|
| 51 | prec={} |
|---|
| 52 | ops=['* / %','+ -','<< >>','< <= >= >','== !=','& | ^','&& ||',','] |
|---|
| 53 | for x in range(len(ops)): |
|---|
| 54 | syms=ops[x] |
|---|
| 55 | for u in syms.split(): |
|---|
| 56 | prec[u]=x |
|---|
| 57 | def trimquotes(s): |
|---|
| 58 | if not s:return'' |
|---|
| 59 | s=s.rstrip() |
|---|
| 60 | if s[0]=="'"and s[-1]=="'":return s[1:-1] |
|---|
| 61 | return s |
|---|
| 62 | def reduce_nums(val_1,val_2,val_op): |
|---|
| 63 | try:a=0+val_1 |
|---|
| 64 | except TypeError:a=int(val_1) |
|---|
| 65 | try:b=0+val_2 |
|---|
| 66 | except TypeError:b=int(val_2) |
|---|
| 67 | d=val_op |
|---|
| 68 | if d=='%':c=a%b |
|---|
| 69 | elif d=='+':c=a+b |
|---|
| 70 | elif d=='-':c=a-b |
|---|
| 71 | elif d=='*':c=a*b |
|---|
| 72 | elif d=='/':c=a/b |
|---|
| 73 | elif d=='^':c=a^b |
|---|
| 74 | elif d=='|':c=a|b |
|---|
| 75 | elif d=='||':c=int(a or b) |
|---|
| 76 | elif d=='&':c=a&b |
|---|
| 77 | elif d=='&&':c=int(a and b) |
|---|
| 78 | elif d=='==':c=int(a==b) |
|---|
| 79 | elif d=='!=':c=int(a!=b) |
|---|
| 80 | elif d=='<=':c=int(a<=b) |
|---|
| 81 | elif d=='<':c=int(a<b) |
|---|
| 82 | elif d=='>':c=int(a>b) |
|---|
| 83 | elif d=='>=':c=int(a>=b) |
|---|
| 84 | elif d=='^':c=int(a^b) |
|---|
| 85 | elif d=='<<':c=a<<b |
|---|
| 86 | elif d=='>>':c=a>>b |
|---|
| 87 | else:c=0 |
|---|
| 88 | return c |
|---|
| 89 | def get_num(lst): |
|---|
| 90 | if not lst:raise PreprocError("empty list for get_num") |
|---|
| 91 | (p,v)=lst[0] |
|---|
| 92 | if p==OP: |
|---|
| 93 | if v=='(': |
|---|
| 94 | count_par=1 |
|---|
| 95 | i=1 |
|---|
| 96 | while i<len(lst): |
|---|
| 97 | (p,v)=lst[i] |
|---|
| 98 | if p==OP: |
|---|
| 99 | if v==')': |
|---|
| 100 | count_par-=1 |
|---|
| 101 | if count_par==0: |
|---|
| 102 | break |
|---|
| 103 | elif v=='(': |
|---|
| 104 | count_par+=1 |
|---|
| 105 | i+=1 |
|---|
| 106 | else: |
|---|
| 107 | raise PreprocError("rparen expected %r"%lst) |
|---|
| 108 | (num,_)=get_term(lst[1:i]) |
|---|
| 109 | return(num,lst[i+1:]) |
|---|
| 110 | elif v=='+': |
|---|
| 111 | return get_num(lst[1:]) |
|---|
| 112 | elif v=='-': |
|---|
| 113 | num,lst=get_num(lst[1:]) |
|---|
| 114 | return(reduce_nums('-1',num,'*'),lst) |
|---|
| 115 | elif v=='!': |
|---|
| 116 | num,lst=get_num(lst[1:]) |
|---|
| 117 | return(int(not int(num)),lst) |
|---|
| 118 | elif v=='~': |
|---|
| 119 | num,lst=get_num(lst[1:]) |
|---|
| 120 | return(~int(num),lst) |
|---|
| 121 | else: |
|---|
| 122 | raise PreprocError("Invalid op token %r for get_num"%lst) |
|---|
| 123 | elif p==NUM: |
|---|
| 124 | return v,lst[1:] |
|---|
| 125 | elif p==IDENT: |
|---|
| 126 | return 0,lst[1:] |
|---|
| 127 | else: |
|---|
| 128 | raise PreprocError("Invalid token %r for get_num"%lst) |
|---|
| 129 | def get_term(lst): |
|---|
| 130 | if not lst:raise PreprocError("empty list for get_term") |
|---|
| 131 | num,lst=get_num(lst) |
|---|
| 132 | if not lst: |
|---|
| 133 | return(num,[]) |
|---|
| 134 | (p,v)=lst[0] |
|---|
| 135 | if p==OP: |
|---|
| 136 | if v==',': |
|---|
| 137 | return get_term(lst[1:]) |
|---|
| 138 | elif v=='?': |
|---|
| 139 | count_par=0 |
|---|
| 140 | i=1 |
|---|
| 141 | while i<len(lst): |
|---|
| 142 | (p,v)=lst[i] |
|---|
| 143 | if p==OP: |
|---|
| 144 | if v==')': |
|---|
| 145 | count_par-=1 |
|---|
| 146 | elif v=='(': |
|---|
| 147 | count_par+=1 |
|---|
| 148 | elif v==':': |
|---|
| 149 | if count_par==0: |
|---|
| 150 | break |
|---|
| 151 | i+=1 |
|---|
| 152 | else: |
|---|
| 153 | raise PreprocError("rparen expected %r"%lst) |
|---|
| 154 | if int(num): |
|---|
| 155 | return get_term(lst[1:i]) |
|---|
| 156 | else: |
|---|
| 157 | return get_term(lst[i+1:]) |
|---|
| 158 | else: |
|---|
| 159 | num2,lst=get_num(lst[1:]) |
|---|
| 160 | if not lst: |
|---|
| 161 | num2=reduce_nums(num,num2,v) |
|---|
| 162 | return get_term([(NUM,num2)]+lst) |
|---|
| 163 | p2,v2=lst[0] |
|---|
| 164 | if p2!=OP: |
|---|
| 165 | raise PreprocError("op expected %r"%lst) |
|---|
| 166 | if prec[v2]>=prec[v]: |
|---|
| 167 | num2=reduce_nums(num,num2,v) |
|---|
| 168 | return get_term([(NUM,num2)]+lst) |
|---|
| 169 | else: |
|---|
| 170 | num3,lst=get_num(lst[1:]) |
|---|
| 171 | num3=reduce_nums(num2,num3,v2) |
|---|
| 172 | return get_term([(NUM,num),(p,v),(NUM,num3)]+lst) |
|---|
| 173 | raise PreprocError("cannot reduce %r"%lst) |
|---|
| 174 | def reduce_eval(lst): |
|---|
| 175 | num,lst=get_term(lst) |
|---|
| 176 | return(NUM,num) |
|---|
| 177 | def stringize(lst): |
|---|
| 178 | lst=[str(v2)for(p2,v2)in lst] |
|---|
| 179 | return"".join(lst) |
|---|
| 180 | def paste_tokens(t1,t2): |
|---|
| 181 | p1=None |
|---|
| 182 | if t1[0]==OP and t2[0]==OP: |
|---|
| 183 | p1=OP |
|---|
| 184 | elif t1[0]==IDENT and(t2[0]==IDENT or t2[0]==NUM): |
|---|
| 185 | p1=IDENT |
|---|
| 186 | elif t1[0]==NUM and t2[0]==NUM: |
|---|
| 187 | p1=NUM |
|---|
| 188 | if not p1: |
|---|
| 189 | raise PreprocError('tokens do not make a valid paste %r and %r'%(t1,t2)) |
|---|
| 190 | return(p1,t1[1]+t2[1]) |
|---|
| 191 | def reduce_tokens(lst,defs,ban=[]): |
|---|
| 192 | i=0 |
|---|
| 193 | while i<len(lst): |
|---|
| 194 | (p,v)=lst[i] |
|---|
| 195 | if p==IDENT and v=="defined": |
|---|
| 196 | del lst[i] |
|---|
| 197 | if i<len(lst): |
|---|
| 198 | (p2,v2)=lst[i] |
|---|
| 199 | if p2==IDENT: |
|---|
| 200 | if v2 in defs: |
|---|
| 201 | lst[i]=(NUM,1) |
|---|
| 202 | else: |
|---|
| 203 | lst[i]=(NUM,0) |
|---|
| 204 | elif p2==OP and v2=='(': |
|---|
| 205 | del lst[i] |
|---|
| 206 | (p2,v2)=lst[i] |
|---|
| 207 | del lst[i] |
|---|
| 208 | if v2 in defs: |
|---|
| 209 | lst[i]=(NUM,1) |
|---|
| 210 | else: |
|---|
| 211 | lst[i]=(NUM,0) |
|---|
| 212 | else: |
|---|
| 213 | raise PreprocError("Invalid define expression %r"%lst) |
|---|
| 214 | elif p==IDENT and v in defs: |
|---|
| 215 | if isinstance(defs[v],str): |
|---|
| 216 | a,b=extract_macro(defs[v]) |
|---|
| 217 | defs[v]=b |
|---|
| 218 | macro_def=defs[v] |
|---|
| 219 | to_add=macro_def[1] |
|---|
| 220 | if isinstance(macro_def[0],list): |
|---|
| 221 | del lst[i] |
|---|
| 222 | accu=to_add[:] |
|---|
| 223 | reduce_tokens(accu,defs,ban+[v]) |
|---|
| 224 | for x in range(len(accu)): |
|---|
| 225 | lst.insert(i,accu[x]) |
|---|
| 226 | i+=1 |
|---|
| 227 | else: |
|---|
| 228 | args=[] |
|---|
| 229 | del lst[i] |
|---|
| 230 | if i>=len(lst): |
|---|
| 231 | raise PreprocError("expected '(' after %r (got nothing)"%v) |
|---|
| 232 | (p2,v2)=lst[i] |
|---|
| 233 | if p2!=OP or v2!='(': |
|---|
| 234 | raise PreprocError("expected '(' after %r"%v) |
|---|
| 235 | del lst[i] |
|---|
| 236 | one_param=[] |
|---|
| 237 | count_paren=0 |
|---|
| 238 | while i<len(lst): |
|---|
| 239 | p2,v2=lst[i] |
|---|
| 240 | del lst[i] |
|---|
| 241 | if p2==OP and count_paren==0: |
|---|
| 242 | if v2=='(': |
|---|
| 243 | one_param.append((p2,v2)) |
|---|
| 244 | count_paren+=1 |
|---|
| 245 | elif v2==')': |
|---|
| 246 | if one_param:args.append(one_param) |
|---|
| 247 | break |
|---|
| 248 | elif v2==',': |
|---|
| 249 | if not one_param:raise PreprocError("empty param in funcall %s"%v) |
|---|
| 250 | args.append(one_param) |
|---|
| 251 | one_param=[] |
|---|
| 252 | else: |
|---|
| 253 | one_param.append((p2,v2)) |
|---|
| 254 | else: |
|---|
| 255 | one_param.append((p2,v2)) |
|---|
| 256 | if v2=='(':count_paren+=1 |
|---|
| 257 | elif v2==')':count_paren-=1 |
|---|
| 258 | else: |
|---|
| 259 | raise PreprocError('malformed macro') |
|---|
| 260 | accu=[] |
|---|
| 261 | arg_table=macro_def[0] |
|---|
| 262 | j=0 |
|---|
| 263 | while j<len(to_add): |
|---|
| 264 | (p2,v2)=to_add[j] |
|---|
| 265 | if p2==OP and v2=='#': |
|---|
| 266 | if j+1<len(to_add)and to_add[j+1][0]==IDENT and to_add[j+1][1]in arg_table: |
|---|
| 267 | toks=args[arg_table[to_add[j+1][1]]] |
|---|
| 268 | accu.append((STR,stringize(toks))) |
|---|
| 269 | j+=1 |
|---|
| 270 | else: |
|---|
| 271 | accu.append((p2,v2)) |
|---|
| 272 | elif p2==OP and v2=='##': |
|---|
| 273 | if accu and j+1<len(to_add): |
|---|
| 274 | t1=accu[-1] |
|---|
| 275 | if to_add[j+1][0]==IDENT and to_add[j+1][1]in arg_table: |
|---|
| 276 | toks=args[arg_table[to_add[j+1][1]]] |
|---|
| 277 | if toks: |
|---|
| 278 | accu[-1]=paste_tokens(t1,toks[0]) |
|---|
| 279 | accu.extend(toks[1:]) |
|---|
| 280 | else: |
|---|
| 281 | accu.append((p2,v2)) |
|---|
| 282 | accu.extend(toks) |
|---|
| 283 | elif to_add[j+1][0]==IDENT and to_add[j+1][1]=='__VA_ARGS__': |
|---|
| 284 | va_toks=[] |
|---|
| 285 | st=len(macro_def[0]) |
|---|
| 286 | pt=len(args) |
|---|
| 287 | for x in args[pt-st+1:]: |
|---|
| 288 | va_toks.extend(x) |
|---|
| 289 | va_toks.append((OP,',')) |
|---|
| 290 | if va_toks:va_toks.pop() |
|---|
| 291 | if len(accu)>1: |
|---|
| 292 | (p3,v3)=accu[-1] |
|---|
| 293 | (p4,v4)=accu[-2] |
|---|
| 294 | if v3=='##': |
|---|
| 295 | accu.pop() |
|---|
| 296 | if v4==','and pt<st: |
|---|
| 297 | accu.pop() |
|---|
| 298 | accu+=va_toks |
|---|
| 299 | else: |
|---|
| 300 | accu[-1]=paste_tokens(t1,to_add[j+1]) |
|---|
| 301 | j+=1 |
|---|
| 302 | else: |
|---|
| 303 | accu.append((p2,v2)) |
|---|
| 304 | elif p2==IDENT and v2 in arg_table: |
|---|
| 305 | toks=args[arg_table[v2]] |
|---|
| 306 | reduce_tokens(toks,defs,ban+[v]) |
|---|
| 307 | accu.extend(toks) |
|---|
| 308 | else: |
|---|
| 309 | accu.append((p2,v2)) |
|---|
| 310 | j+=1 |
|---|
| 311 | reduce_tokens(accu,defs,ban+[v]) |
|---|
| 312 | for x in range(len(accu)-1,-1,-1): |
|---|
| 313 | lst.insert(i,accu[x]) |
|---|
| 314 | i+=1 |
|---|
| 315 | def eval_macro(lst,defs): |
|---|
| 316 | reduce_tokens(lst,defs,[]) |
|---|
| 317 | if not lst:raise PreprocError("missing tokens to evaluate") |
|---|
| 318 | (p,v)=reduce_eval(lst) |
|---|
| 319 | return int(v)!=0 |
|---|
| 320 | def extract_macro(txt): |
|---|
| 321 | t=tokenize(txt) |
|---|
| 322 | if re_fun.search(txt): |
|---|
| 323 | p,name=t[0] |
|---|
| 324 | p,v=t[1] |
|---|
| 325 | if p!=OP:raise PreprocError("expected open parenthesis") |
|---|
| 326 | i=1 |
|---|
| 327 | pindex=0 |
|---|
| 328 | params={} |
|---|
| 329 | prev='(' |
|---|
| 330 | while 1: |
|---|
| 331 | i+=1 |
|---|
| 332 | p,v=t[i] |
|---|
| 333 | if prev=='(': |
|---|
| 334 | if p==IDENT: |
|---|
| 335 | params[v]=pindex |
|---|
| 336 | pindex+=1 |
|---|
| 337 | prev=p |
|---|
| 338 | elif p==OP and v==')': |
|---|
| 339 | break |
|---|
| 340 | else: |
|---|
| 341 | raise PreprocError("unexpected token (3)") |
|---|
| 342 | elif prev==IDENT: |
|---|
| 343 | if p==OP and v==',': |
|---|
| 344 | prev=v |
|---|
| 345 | elif p==OP and v==')': |
|---|
| 346 | break |
|---|
| 347 | else: |
|---|
| 348 | raise PreprocError("comma or ... expected") |
|---|
| 349 | elif prev==',': |
|---|
| 350 | if p==IDENT: |
|---|
| 351 | params[v]=pindex |
|---|
| 352 | pindex+=1 |
|---|
| 353 | prev=p |
|---|
| 354 | elif p==OP and v=='...': |
|---|
| 355 | raise PreprocError("not implemented (1)") |
|---|
| 356 | else: |
|---|
| 357 | raise PreprocError("comma or ... expected (2)") |
|---|
| 358 | elif prev=='...': |
|---|
| 359 | raise PreprocError("not implemented (2)") |
|---|
| 360 | else: |
|---|
| 361 | raise PreprocError("unexpected else") |
|---|
| 362 | return(name,[params,t[i+1:]]) |
|---|
| 363 | else: |
|---|
| 364 | (p,v)=t[0] |
|---|
| 365 | if len(t)>1: |
|---|
| 366 | return(v,[[],t[1:]]) |
|---|
| 367 | else: |
|---|
| 368 | return(v,[[],[('T','')]]) |
|---|
| 369 | re_include=re.compile('^\s*(<(?P<a>.*)>|"(?P<b>.*)")') |
|---|
| 370 | def extract_include(txt,defs): |
|---|
| 371 | m=re_include.search(txt) |
|---|
| 372 | if m: |
|---|
| 373 | if m.group('a'):return'<',m.group('a') |
|---|
| 374 | if m.group('b'):return'"',m.group('b') |
|---|
| 375 | toks=tokenize(txt) |
|---|
| 376 | reduce_tokens(toks,defs,['waf_include']) |
|---|
| 377 | if not toks: |
|---|
| 378 | raise PreprocError("could not parse include %s"%txt) |
|---|
| 379 | if len(toks)==1: |
|---|
| 380 | if toks[0][0]==STR: |
|---|
| 381 | return'"',toks[0][1] |
|---|
| 382 | else: |
|---|
| 383 | if toks[0][1]=='<'and toks[-1][1]=='>': |
|---|
| 384 | return stringize(toks).lstrip('<').rstrip('>') |
|---|
| 385 | raise PreprocError("could not parse include %s."%txt) |
|---|
| 386 | def parse_char(txt): |
|---|
| 387 | if not txt:raise PreprocError("attempted to parse a null char") |
|---|
| 388 | if txt[0]!='\\': |
|---|
| 389 | return ord(txt) |
|---|
| 390 | c=txt[1] |
|---|
| 391 | if c=='x': |
|---|
| 392 | if len(txt)==4 and txt[3]in string.hexdigits:return int(txt[2:],16) |
|---|
| 393 | return int(txt[2:],16) |
|---|
| 394 | elif c.isdigit(): |
|---|
| 395 | if c=='0'and len(txt)==2:return 0 |
|---|
| 396 | for i in 3,2,1: |
|---|
| 397 | if len(txt)>i and txt[1:1+i].isdigit(): |
|---|
| 398 | return(1+i,int(txt[1:1+i],8)) |
|---|
| 399 | else: |
|---|
| 400 | try:return chr_esc[c] |
|---|
| 401 | except KeyError:raise PreprocError("could not parse char literal '%s'"%txt) |
|---|
| 402 | def tokenize(s): |
|---|
| 403 | return tokenize_private(s)[:] |
|---|
| 404 | @Utils.run_once |
|---|
| 405 | def tokenize_private(s): |
|---|
| 406 | ret=[] |
|---|
| 407 | for match in re_clexer.finditer(s): |
|---|
| 408 | m=match.group |
|---|
| 409 | for name in tok_types: |
|---|
| 410 | v=m(name) |
|---|
| 411 | if v: |
|---|
| 412 | if name==IDENT: |
|---|
| 413 | try:v=g_optrans[v];name=OP |
|---|
| 414 | except KeyError: |
|---|
| 415 | if v.lower()=="true": |
|---|
| 416 | v=1 |
|---|
| 417 | name=NUM |
|---|
| 418 | elif v.lower()=="false": |
|---|
| 419 | v=0 |
|---|
| 420 | name=NUM |
|---|
| 421 | elif name==NUM: |
|---|
| 422 | if m('oct'):v=int(v,8) |
|---|
| 423 | elif m('hex'):v=int(m('hex'),16) |
|---|
| 424 | elif m('n0'):v=m('n0') |
|---|
| 425 | else: |
|---|
| 426 | v=m('char') |
|---|
| 427 | if v:v=parse_char(v) |
|---|
| 428 | else:v=m('n2')or m('n4') |
|---|
| 429 | elif name==OP: |
|---|
| 430 | if v=='%:':v='#' |
|---|
| 431 | elif v=='%:%:':v='##' |
|---|
| 432 | elif name==STR: |
|---|
| 433 | v=v[1:-1] |
|---|
| 434 | ret.append((name,v)) |
|---|
| 435 | break |
|---|
| 436 | return ret |
|---|
| 437 | @Utils.run_once |
|---|
| 438 | def define_name(line): |
|---|
| 439 | return re_mac.match(line).group(0) |
|---|
| 440 | class c_parser(object): |
|---|
| 441 | def __init__(self,nodepaths=None,defines=None): |
|---|
| 442 | self.lines=[] |
|---|
| 443 | if defines is None: |
|---|
| 444 | self.defs={} |
|---|
| 445 | else: |
|---|
| 446 | self.defs=dict(defines) |
|---|
| 447 | self.state=[] |
|---|
| 448 | self.count_files=0 |
|---|
| 449 | self.currentnode_stack=[] |
|---|
| 450 | self.nodepaths=nodepaths or[] |
|---|
| 451 | self.nodes=[] |
|---|
| 452 | self.names=[] |
|---|
| 453 | self.curfile='' |
|---|
| 454 | self.ban_includes=set([]) |
|---|
| 455 | def cached_find_resource(self,node,filename): |
|---|
| 456 | try: |
|---|
| 457 | nd=node.ctx.cache_nd |
|---|
| 458 | except AttributeError: |
|---|
| 459 | nd=node.ctx.cache_nd={} |
|---|
| 460 | tup=(node,filename) |
|---|
| 461 | try: |
|---|
| 462 | return nd[tup] |
|---|
| 463 | except KeyError: |
|---|
| 464 | ret=node.find_resource(filename) |
|---|
| 465 | if ret: |
|---|
| 466 | if getattr(ret,'children',None): |
|---|
| 467 | ret=None |
|---|
| 468 | elif ret.is_child_of(node.ctx.bldnode): |
|---|
| 469 | tmp=node.ctx.srcnode.search_node(ret.path_from(node.ctx.bldnode)) |
|---|
| 470 | if tmp and getattr(tmp,'children',None): |
|---|
| 471 | ret=None |
|---|
| 472 | nd[tup]=ret |
|---|
| 473 | return ret |
|---|
| 474 | def tryfind(self,filename): |
|---|
| 475 | self.curfile=filename |
|---|
| 476 | found=self.cached_find_resource(self.currentnode_stack[-1],filename) |
|---|
| 477 | for n in self.nodepaths: |
|---|
| 478 | if found: |
|---|
| 479 | break |
|---|
| 480 | found=self.cached_find_resource(n,filename) |
|---|
| 481 | if found and not found in self.ban_includes: |
|---|
| 482 | self.nodes.append(found) |
|---|
| 483 | if filename[-4:]!='.moc': |
|---|
| 484 | self.addlines(found) |
|---|
| 485 | else: |
|---|
| 486 | if not filename in self.names: |
|---|
| 487 | self.names.append(filename) |
|---|
| 488 | return found |
|---|
| 489 | def addlines(self,node): |
|---|
| 490 | self.currentnode_stack.append(node.parent) |
|---|
| 491 | filepath=node.abspath() |
|---|
| 492 | self.count_files+=1 |
|---|
| 493 | if self.count_files>recursion_limit: |
|---|
| 494 | raise PreprocError("recursion limit exceeded") |
|---|
| 495 | pc=self.parse_cache |
|---|
| 496 | debug('preproc: reading file %r',filepath) |
|---|
| 497 | try: |
|---|
| 498 | lns=pc[filepath] |
|---|
| 499 | except KeyError: |
|---|
| 500 | pass |
|---|
| 501 | else: |
|---|
| 502 | self.lines.extend(lns) |
|---|
| 503 | return |
|---|
| 504 | try: |
|---|
| 505 | lines=filter_comments(filepath) |
|---|
| 506 | lines.append((POPFILE,'')) |
|---|
| 507 | lines.reverse() |
|---|
| 508 | pc[filepath]=lines |
|---|
| 509 | self.lines.extend(lines) |
|---|
| 510 | except IOError: |
|---|
| 511 | raise PreprocError("could not read the file %s"%filepath) |
|---|
| 512 | except Exception: |
|---|
| 513 | if Logs.verbose>0: |
|---|
| 514 | error("parsing %s failed"%filepath) |
|---|
| 515 | traceback.print_exc() |
|---|
| 516 | def start(self,node,env): |
|---|
| 517 | debug('preproc: scanning %s (in %s)',node.name,node.parent.name) |
|---|
| 518 | bld=node.ctx |
|---|
| 519 | try: |
|---|
| 520 | self.parse_cache=bld.parse_cache |
|---|
| 521 | except AttributeError: |
|---|
| 522 | bld.parse_cache={} |
|---|
| 523 | self.parse_cache=bld.parse_cache |
|---|
| 524 | self.current_file=node |
|---|
| 525 | self.addlines(node) |
|---|
| 526 | if env['DEFINES']: |
|---|
| 527 | try: |
|---|
| 528 | lst=['%s %s'%(x[0],trimquotes('='.join(x[1:])))for x in[y.split('=')for y in env['DEFINES']]] |
|---|
| 529 | lst.reverse() |
|---|
| 530 | self.lines.extend([('define',x)for x in lst]) |
|---|
| 531 | except AttributeError: |
|---|
| 532 | pass |
|---|
| 533 | while self.lines: |
|---|
| 534 | (token,line)=self.lines.pop() |
|---|
| 535 | if token==POPFILE: |
|---|
| 536 | self.count_files-=1 |
|---|
| 537 | self.currentnode_stack.pop() |
|---|
| 538 | continue |
|---|
| 539 | try: |
|---|
| 540 | ve=Logs.verbose |
|---|
| 541 | if ve:debug('preproc: line is %s - %s state is %s',token,line,self.state) |
|---|
| 542 | state=self.state |
|---|
| 543 | if token[:2]=='if': |
|---|
| 544 | state.append(undefined) |
|---|
| 545 | elif token=='endif': |
|---|
| 546 | state.pop() |
|---|
| 547 | if token[0]!='e': |
|---|
| 548 | if skipped in self.state or ignored in self.state: |
|---|
| 549 | continue |
|---|
| 550 | if token=='if': |
|---|
| 551 | ret=eval_macro(tokenize(line),self.defs) |
|---|
| 552 | if ret:state[-1]=accepted |
|---|
| 553 | else:state[-1]=ignored |
|---|
| 554 | elif token=='ifdef': |
|---|
| 555 | m=re_mac.match(line) |
|---|
| 556 | if m and m.group(0)in self.defs:state[-1]=accepted |
|---|
| 557 | else:state[-1]=ignored |
|---|
| 558 | elif token=='ifndef': |
|---|
| 559 | m=re_mac.match(line) |
|---|
| 560 | if m and m.group(0)in self.defs:state[-1]=ignored |
|---|
| 561 | else:state[-1]=accepted |
|---|
| 562 | elif token=='include'or token=='import': |
|---|
| 563 | (kind,inc)=extract_include(line,self.defs) |
|---|
| 564 | if ve:debug('preproc: include found %s (%s) ',inc,kind) |
|---|
| 565 | if kind=='"'or not strict_quotes: |
|---|
| 566 | self.current_file=self.tryfind(inc) |
|---|
| 567 | if token=='import': |
|---|
| 568 | self.ban_includes.add(self.current_file) |
|---|
| 569 | elif token=='elif': |
|---|
| 570 | if state[-1]==accepted: |
|---|
| 571 | state[-1]=skipped |
|---|
| 572 | elif state[-1]==ignored: |
|---|
| 573 | if eval_macro(tokenize(line),self.defs): |
|---|
| 574 | state[-1]=accepted |
|---|
| 575 | elif token=='else': |
|---|
| 576 | if state[-1]==accepted:state[-1]=skipped |
|---|
| 577 | elif state[-1]==ignored:state[-1]=accepted |
|---|
| 578 | elif token=='define': |
|---|
| 579 | try: |
|---|
| 580 | self.defs[define_name(line)]=line |
|---|
| 581 | except Exception: |
|---|
| 582 | raise PreprocError("Invalid define line %s"%line) |
|---|
| 583 | elif token=='undef': |
|---|
| 584 | m=re_mac.match(line) |
|---|
| 585 | if m and m.group(0)in self.defs: |
|---|
| 586 | self.defs.__delitem__(m.group(0)) |
|---|
| 587 | elif token=='pragma': |
|---|
| 588 | if re_pragma_once.match(line.lower()): |
|---|
| 589 | self.ban_includes.add(self.current_file) |
|---|
| 590 | except Exception ,e: |
|---|
| 591 | if Logs.verbose: |
|---|
| 592 | debug('preproc: line parsing failed (%s): %s %s',e,line,Utils.ex_stack()) |
|---|
| 593 | def scan(task): |
|---|
| 594 | global go_absolute |
|---|
| 595 | try: |
|---|
| 596 | incn=task.generator.includes_nodes |
|---|
| 597 | except AttributeError: |
|---|
| 598 | raise Errors.WafError('%r is missing a feature such as "c", "cxx" or "includes": '%task.generator) |
|---|
| 599 | if go_absolute: |
|---|
| 600 | nodepaths=incn+[task.generator.bld.root.find_dir(x)for x in standard_includes] |
|---|
| 601 | else: |
|---|
| 602 | nodepaths=[x for x in incn if x.is_child_of(x.ctx.srcnode)or x.is_child_of(x.ctx.bldnode)] |
|---|
| 603 | tmp=c_parser(nodepaths) |
|---|
| 604 | tmp.start(task.inputs[0],task.env) |
|---|
| 605 | if Logs.verbose: |
|---|
| 606 | debug('deps: deps for %r: %r; unresolved %r'%(task.inputs,tmp.nodes,tmp.names)) |
|---|
| 607 | return(tmp.nodes,tmp.names) |
|---|
