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Commit Graph

10 Commits

Author SHA1 Message Date
Austin Clements
2ac1528e55 Finish shift implementation for ideals.
R=rsc
APPROVED=rsc
DELTA=65  (29 added, 17 deleted, 19 changed)
OCL=31775
CL=31777
2009-07-17 11:50:32 -07:00
Austin Clements
b751be4cf5 Cleanup func literals. "func (" -> "func("
R=rsc
APPROVED=rsc
DELTA=41  (0 added, 0 deleted, 41 changed)
OCL=31773
CL=31773
2009-07-17 10:45:53 -07:00
Austin Clements
96e844393e Implement all unary and binary arithmetic operators.
R=rsc
APPROVED=rsc
DELTA=689  (497 added, 169 deleted, 23 changed)
OCL=31755
CL=31772
2009-07-17 10:38:44 -07:00
Austin Clements
1902283053 Fix handling of non-waitable zombie threads. Now they are not
considered running, so WaitStop doesn't lock up and
breakpoints get installed and uninstalled.  We also don't try
to detach from them, since that will fail.

R=rsc
APPROVED=rsc
DELTA=35  (26 added, 2 deleted, 7 changed)
OCL=31683
CL=31731
2009-07-16 09:48:37 -07:00
Austin Clements
816e3da26d Make Value always represent an l-value and never a generic
container for values.

Instead of having one evaluator function that returns a
generic Value, there is now an evaluator function for each
generalized type that simply returns a native type.

The compiler is more type-safe now because there are almost no
type conversions at evaluation time and it's impossible to
invoke a nil evaluator function during evaluation.  This also
makes ideals and pointers really clean.

As an added bonus, expression evaluation should be faster
because it doesn't require heap allocation for every
intermediate value, type switches, or lots of conversions to
and from Value.  It also involves fewer function calls.

R=rsc
APPROVED=rsc
DELTA=431  (280 added, 115 deleted, 36 changed)
OCL=31705
CL=31709
2009-07-15 17:56:17 -07:00
Austin Clements
9211a7d413 Beginnings of a Go interpreter. This implements basic and
pointer types, supports literals, identifiers, type-checking
most unary and binary operators, "compiling" a few unary and
binary operators, and assignment and declaration statements.

R=rsc
APPROVED=rsc
DELTA=1751  (1751 added, 0 deleted, 0 changed)
OCL=31309
CL=31691
2009-07-15 11:59:13 -07:00
Austin Clements
8b7951495c Implement forking debugged processes.
R=rsc
APPROVED=rsc
DELTA=81  (53 added, 3 deleted, 25 changed)
OCL=31651
CL=31675
2009-07-15 10:17:56 -07:00
Austin Clements
c105de748d Implementation of process tracing using Linux's ptrace.
R=rsc
APPROVED=rsc
DELTA=1543  (1528 added, 0 deleted, 15 changed)
OCL=31570
CL=31630
2009-07-14 15:12:10 -07:00
Austin Clements
9de5df89c3 Give ptrace code a real home.
R=rsc
APPROVED=rsc
DELTA=422  (211 added, 211 deleted, 0 changed)
OCL=31425
CL=31431
2009-07-09 17:35:32 -07:00
Austin Clements
76fef1deec Process tracing interface.
This is meant to be implemented per platform and used by
higher-level debugging libraries.

R=rsc
APPROVED=rsc
DELTA=211  (211 added, 0 deleted, 0 changed)
OCL=31003
CL=31423
2009-07-09 17:10:12 -07:00