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222 commits

Author SHA1 Message Date
Bill Currie
f029687ff0 switch statement. could do with lots of improvements, but this should be a 
good start.
 2001-10-25 06:41:52 +00:00
Adam Olsen
3bba5398ba - audit malloc usage. now everything checks the return value :) 2001-10-24 22:50:06 +00:00
Bill Currie
133ce647fb implement break and continue. only loops covered for now, but that's because 
switch isn't implemented yet
 2001-10-24 18:57:29 +00:00
Bill Currie
743bc5178b fix uninitialized variable detection for nested scopes 2001-10-24 15:21:21 +00:00
Bill Currie
6553c81a41 proper scoping for QC ala C. 2001-10-24 06:39:49 +00:00
Bill Currie
2ef8adea09 handle more conditional code and check for unitied vars in the test of if () 
etc
 2001-10-19 05:16:24 +00:00
Bill Currie
16c334b6b9 uninit var detection seems to work for if and if else 2001-10-19 03:22:04 +00:00
Bill Currie
3572a6be28 change def_list from def_t ** to hashtab_t * and comment out some debug code 2001-10-19 00:45:56 +00:00
Bill Currie
237d238a65 beginnings of "if" uninitialized variable support. doesn't make any 
difference yet
 2001-10-18 23:06:39 +00:00
Bill Currie
5ca785e7e8 uninitialized variable detection. not perfect (lots of false negatives, but 
fewer than before;) but prozac isn't giving any false positives.
 2001-10-18 20:05:26 +00:00
Bill Currie
96e4e1a232 the beginning of unititialized var detection. first victim: functions. 
--undefined-function-warning is now --no-undefined-function-warning and
the default is to detect called but undefined functions.
 2001-10-18 17:41:22 +00:00
Bill Currie
952f029e6d rename def_t.initialized to def_t.constant 2001-10-18 17:15:05 +00:00
Bill Currie
79ac85b54f type checking now works much better and there is now a NIL builtin constant 
which can be assigned (/only/) to anything.
 2001-10-17 07:45:37 +00:00
Bill Currie
7407e4f1b7 and some more 2001-09-28 07:09:38 +00:00
Bill Currie
7aec6e253a unused local variable detection 2001-09-22 23:41:47 +00:00
Bill Currie
9f715ae9f8 more small old-parser cleanups 2001-09-15 20:31:17 +00:00
Bill Currie
cf4ca286f0 implement pre and post increment operators (++ and --) 2001-08-20 06:22:28 +00:00
Bill Currie
c2d3d8f3ab temp def expressions and ?: 
seems to work :)
 2001-08-11 21:15:24 +00:00
Bill Currie
a33c834a39 move SHL and SHR down in expr 2001-08-10 17:00:53 +00:00
Adam Olsen
6414897dae got a few new operators for qc :) 
<< >> % which all act like their C counterparts
+= -= *= /= &= ^= |= <<= >>= %= which just expand into the obvious,
also like the C versions.
 2001-08-10 16:17:00 +00:00
Bill Currie
081d8f3c47 ^ and ~ operators for qc (^ from Rhamphoryncus) and clean up the punctuation 
line in qc-lex.l (why didn't I think to do that in the first place?!?)
 2001-08-09 16:34:46 +00:00
Bill Currie
d89cd91e4b make the expressions in for (a;b;c) optional 2001-08-01 06:29:09 +00:00
Bill Currie
bfb8eff2f0 signed_const isn't needed any more 2001-07-27 21:01:01 +00:00
Bill Currie
ecc71c4a60 local var = expr; now works (globals must still be consants) 2001-07-27 20:55:14 +00:00
Bill Currie
0c2cd8633c fix -expr handling. generates sucky code atm, but at least it's generating 
code now:P
 2001-07-25 18:36:36 +00:00
Bill Currie
620063628c typecheck values for [frame, think] on thost functions and fix some misplaced 
immediate defs
 2001-07-24 23:53:35 +00:00
Bill Currie
9ad075b02e make if/while/for use test_expr, make test_expr fix the new exp line/file, 
fix some string const issues
 2001-07-24 22:30:31 +00:00
Bill Currie
b8874cab1c function return checking 2001-07-23 02:27:46 +00:00
Bill Currie
c248372e20 Initial integer type support. qfcc /is/ partially broken when it comes to 
integer constants and float function args/return values.

pr_comp.h:
	o  add the integer opcodes to pr_opcode_e
pr_edict.c:
	o  add "quaternion" and "integer" to type_name[]
	o  support quatnernion and integers types when printing values
	o  support the integer opcodes when bounds checking
pr_exec.c
	o  enable the integer opcodes
pr_opcode:
	o  add the integer opcodes to the opcode table
	o  logical operators all result in an integer rather than a value
expr.h:
	o  rename int_val to integer_val
qfcc.h:
	o  kill another magic number
expr.c:
	o  move the opcode to string conversion out of type_mismatch and into
	   get_op_string
	o  rename int_val to integer_val
	o  general integer type support.
	o  generate an internal comipiler error for null opcodes rather than
	   segging.
pr_imm.c:
	o  rename int_val to integer_val
	o  support integer constants, converting to float when needed.
pr_lex.c:
	o  magic number death and support quaternions and integers in type_size[]
qc-lex.l
	o  rename int_val to integer_val
	o  support quaternion and integer type keywords
qc-parse.y:
	o  rename int_val to integer_val
	o  use binary_expr instead of new_binary_expr for local initialized
	   variables
builtins.c:
	o  rename int_val to integer_val
	o  fix most (all?) of the INT related FIXMEs
defs.qc:
	o  use integer instead of float where it makes sense
main.c:
	o  read_result is now integer rather than float
main.qc:
	o  float -> integer where appropriate
	o  new test for int const to float arg
 2001-07-23 01:31:22 +00:00
Bill Currie
55ac55c7ac rename ev_int and ex_int to ev_integer and ex_integer. create type_integer 
and def_integer (do I need that?), clean up and or coment on XXX and FIXME
 2001-07-22 06:59:12 +00:00
Bill Currie
cb80800732 fix debug line numbers for if and while. still `losing' them for return for 
some reason.
 2001-07-15 01:51:01 +00:00
Bill Currie
6c91ee29f0 fix a missed debug test 2001-07-14 01:47:45 +00:00
Bill Currie
64e50e1ebd Basic debug info generation, just line numbers and local defs for each 
function.
 2001-07-14 01:15:40 +00:00
Bill Currie
1db6225ae7 make - - - - -2 work 2001-07-06 04:54:08 +00:00
Bill Currie
4673d701c9 fix the conflicts caused by -ve constants 2001-07-06 04:29:12 +00:00
Bill Currie
1edf1e0b39 format checking for error and warning + needed fixes 
try to give name of object when calling non-function
 2001-07-03 20:53:49 +00:00
Bill Currie
ccc00b0608 fix segs on ondeclared identifiers 2001-07-03 20:42:07 +00:00
Bill Currie
6dfee9968b /much/ better error handling 2001-06-28 21:26:40 +00:00
Bill Currie
0271afbb10 warn about the dangers of (!foo & bar) 2001-06-28 15:20:31 +00:00
Bill Currie
01a9372add fix the corrupted locals problem (df->locals was getting set too early) 2001-06-28 02:58:45 +00:00
Bill Currie
daf5fc96ea reset temps after emitting a function. it helps :) (fixes the wierd entity 
errors)
 2001-06-27 23:36:03 +00:00
Bill Currie
1eef491c1c handle -ve constants 2001-06-27 19:40:43 +00:00
Bill Currie
504d03a21a expr.c: 
fix a silly stanfu with goto
qc-parse.y:
	suffle the debug code
 2001-06-27 05:45:20 +00:00
Bill Currie
673e6e66b7 turns out qcc wasn't so stupid about = vs ||/&& precedence after all (just 
my interpretation of the code was:/) why oh why didn't John use bison or yacc
in the first place? :/
 2001-06-27 00:10:34 +00:00
Bill Currie
50ae388caa initialisations now seem to work, including cows (mooOOoo:) 2001-06-26 22:43:28 +00:00
Bill Currie
3242c04798 fix the redef error 2001-06-26 16:12:01 +00:00
Bill Currie
c1753046a9 start on actually generating code. doesn't work yet (getting a weird type 
redeclaration error and not all expressions are handled yet).
 2001-06-26 07:21:20 +00:00
Bill Currie
e99796c4cf new expression type: ex_block. forms a linked list of expressions for fast 
appending and ease of manipulation.
 2001-06-26 03:33:01 +00:00
Bill Currie
749d460041 duplicate code cleanup 2001-06-26 02:46:02 +00:00
Bill Currie
3fa3ab59a9 clean up error reporting a little 2001-06-25 23:42:49 +00:00
Bill Currie
625915288c hopefully make line directives work 2001-06-25 23:38:32 +00:00
Bill Currie
90b5c57266 fix lost initial char of string constants 
make expression strings char * instead of string_t (don't put them into
pr_strings prematurely);
 2001-06-25 22:53:15 +00:00
Bill Currie
53b66ef2e0 better label handling and strings are now completely parsed (including escapes) 2001-06-25 22:11:20 +00:00
Bill Currie
1779a124c5 expr.h: 
nuke the ex_statement and estatement_[st] stuff
	add label_expr prototype
expr.c:
	ex_statement nukage
	correct new_expr's decl
	add label_expr to ease label creation
	don't crash when printing a null expression (bare return)
qc-parse.y:
	estatement_t nukage
	statement statements and statement_block are type expr
	generate `expressions' for statements

a full parse tree for each function is now generated. there are several
special expression opcodes for statements:
	d	done    \
	r	return  -> unary: expression to return or null
	i	if      binary:   evaluated expression, destination label
	n	ifnot   binary:   evaluated expression, destination label
	c	call    binary:   function def, args (expr list, rev order)
	s	state   binary:   frame const, function def
	g	goto    unary:    destination label
	l	label   unary:    label number
in a top level expression, l (label) defines the label, otherwise it is a
reference.
 2001-06-25 20:52:04 +00:00
Bill Currie
2d87eeb57d functions are now initialized, but no code is yet generated 2001-06-25 18:23:29 +00:00
Bill Currie
ab051248e8 expr.h: 
add prototype for print_expr
expr.c:
	add print_expr
	correct string accessors
	currect the result type for unary operators
qc-lex.l:
	correct string, vector and quaternion parsing
qc-parse.y:
	precedence corrections and more function scope work

CustomTF gets through the parsing again.
 2001-06-25 17:15:56 +00:00
Bill Currie
c12ac3278e a little progress on functions 2001-06-21 07:08:34 +00:00
Bill Currie
ae98ed8603 field types are parsed correctly, but parameters have been lost for the 
moment
 2001-06-20 23:32:13 +00:00
Bill Currie
aac91d8cd6 more expression handling. turns out I'm mis-parsing field types, so that's next 2001-06-20 21:18:04 +00:00
Bill Currie
226b40483d beginnings of expression and statement processing 2001-06-20 07:02:36 +00:00
Bill Currie
90a0cdfedf now seems to get through CustomTF properly, but better def handling is needed 2001-06-19 23:35:09 +00:00
Bill Currie
2647e63810 finally fix the tupe corruption. 2001-06-19 16:01:38 +00:00
Bill Currie
bdc0ba32ca pr_lex.c: 
add PR_PrintType (and lotsa debug to PR_FindType)
qc-parse.y:
	fix up one bit of type corruption, only to find another :/
 2001-06-19 07:28:50 +00:00
Bill Currie
89fecd7cee slowly getting there with defs processing. still borked 2001-06-18 22:51:49 +00:00
Bill Currie
b595f0122f got function params scope sort of sorted out 2001-06-15 20:38:57 +00:00
Bill Currie
eeaab95be5 beginnings of expression and def handling. 2001-06-15 19:38:43 +00:00
Bill Currie
373ea8132a more work on the code generation and make generally usable again by disabling 
the new stuff
 2001-06-15 07:16:18 +00:00
Bill Currie
f9baacd440 beginnings of code generation. hangs :) 2001-06-14 21:49:47 +00:00
Bill Currie
d7ebba6a74 parses CustomTF now, but no code generation 2001-06-13 18:35:41 +00:00
Bill Currie
c89da89b69 almost parses CustomTF ($macro junk next) 2001-06-13 07:16:39 +00:00
Bill Currie
7d52f12248 clean up C warnings 2001-06-12 20:24:02 +00:00
Bill Currie
3be018e1f9 beginnings of a bison grammar for qc 2001-06-12 19:44:26 +00:00