Commit Graph

215 Commits

Author SHA1 Message Date
Jeremy Hylton 4eb504c2af add loop handling via
Loop object to handle StackRegs
loops stack attr on CodeGenreeator to hold the current loop object

add support for nodes While, Break, Continue
2000-02-10 20:55:50 +00:00
Jeremy Hylton 95b8614353 add an __len__ to Set and Stack 2000-02-10 20:54:27 +00:00
Jeremy Hylton 3e0910c10c add namespace attr to CodeGenerator, can be either MODULE_NAMESPACE or
FUNCTION_NAMESPACE.  initialize in __init__ and reset in
generateFunctionCode.

replace direct issue of STORE_FAST, STORE_GLOBAL, etc. with call to
storeName; same for loadName and deleteName

the new {store,load,delete}Name methods use the namespace attr and the
local variable stack to determine the correct bytecode to issue
2000-02-10 17:20:39 +00:00
Jeremy Hylton 5e0ce53e0e add ExampleASTVisitor:
* prints out examples of nodes that are handled by visitor.  simply a
  development convenience

remove NestedCodeGenerator -- it was bogus after all
replace with generateFunctionCode, a method to call to generate code
  for a function instead of a top-level module

fix impl of visitDiscard (most pop stack)
emit lineno for pass

handle the following new node types: Import, From, Getattr, Subscript,
Slice, AssAttr, AssTuple, Mod, Not, And, Or, List

LocalNameFinder: remove names declared as globals for locals

PythonVMCode: pass arg names to constructor, force varnames to contain
them all (even if they aren't referenced)

add -q option on command line to disable stdout
2000-02-10 00:47:08 +00:00
Jeremy Hylton 69926eaee0 add remove method to set 2000-02-10 00:43:22 +00:00
Jeremy Hylton 402456020b add optional verbose arg to walk function. it overrides the global
VERBOSE setting for the ASTVisitor

add getopt handling for one or more -v args

rename ForwardRef to StackRef, because it isn't necessarily directional

CodeGenerator:
* add assertStackEmpty method.  prints warning if stack is not empty
  when it should be
* define methods for AssName, UNARY_*, For

PythonVMCode:
* fix mix up between hasjrel and hasjabs for address calculation
2000-02-08 21:15:48 +00:00
Jeremy Hylton 156a975476 make all unary operators have a single child node called expr 2000-02-08 21:06:19 +00:00
Jeremy Hylton 1851901a05 add spaces to comparison names is not and not in to match dis 2000-02-08 19:58:33 +00:00
Jeremy Hylton 53187f32eb now produces valid pyc files for a least a trivial subset of the
language.

CodeGenerator:
* modify to track stack depth
* add emit method that call's PythonVMCode's makeCodeObject
* thread filenames through in hackish way
* set flags for code objects for modules and functions
  XXX the docs for the flags seem out of date and/or incomplete

PythonVMCode:
* add doc string describing the elements of a real code object

LineAddrTable:
* creates an lnotab (no quite correctly though)
2000-02-08 19:01:29 +00:00
Jeremy Hylton aa9d2d6123 constants from transformer 2000-02-08 18:57:51 +00:00
Jeremy Hylton 9605c11c4c move constants out of transformer so that they can be shared with ast
add varargs and kwargs attributes to Function nodes
2000-02-08 18:57:32 +00:00
Jeremy Hylton 0fdffcf916 rapid evolution towards producing real .pyc files (even though I don't
handle most of the language syntax yet)

create NestedCodeGenerator used to generator the separate code object
that needs to be passed as an argument to MAKE_FUNCTION when a def
stmt is found (probably useful for class too)

change CodeGenerator.visitFunction to use the NestedCG

add CompiledModule class to handle creation of .pyc (pretty minimal
for now)

add makeCodeObject method to PythonVMCode that replaces symbolic names
with indexes into slots of the code code.  the design of this
class will probably need to be revised.
2000-02-04 19:37:35 +00:00
Jeremy Hylton 8b6323d3ef checking in initial weekend's work
compile.py: ASTVisitor framework plus bits of a code generator that
    should be bug-for-buf compatible with compile.c

misc.py: Set and Stack helpers

test.py: a bit of simple sample code that compile.py will work on
2000-02-04 00:28:21 +00:00
Jeremy Hylton 106a02da94 make p2c a package 2000-02-04 00:25:34 +00:00
Jeremy Hylton f968e8545d three files from the p2c cvs tree. the message here indicates the
revision number the p2c cvs tree.

COPYRIGHT: 1.1
ast.py: 1.3
transformer.py: 1.11
2000-02-04 00:25:23 +00:00