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path: root/Lib/compiler/pycodegen.py
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* Whitespace normalization.Tim Peters2002-02-161-1/+1
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* Merge of the release22 branch changes back into the trunk.Barry Warsaw2001-12-211-3/+9
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* Fix [ #484645 ] little bug in pycodegen.pyJeremy Hylton2001-11-271-1/+1
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* Fix SF bug #479186: compiler generates bad code for "del"Jeremy Hylton2001-11-091-0/+1
| | | | | | | Fix by Neil Schemenauer. Visit the Subscript node when trying to find the operation for a statement. XXX Not sure if there are other nodes that should be visited.
* Whitespace normalization.Tim Peters2001-10-181-19/+19
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* API change:Jeremy Hylton2001-09-171-5/+95
| | | | | | | | | | | | | | | | | | compile() becomes replacement for builtin compile() compileFile() generates a .pyc from a .py both are exported in __init__ compiler.parse() gets optional second argument to specify compilation mode, e.g. single, eval, exec Add AbstractCompileMode as parent class and Module, Expression, and Interactive as concrete subclasses. Each corresponds to a compilation mode. THe AbstractCompileMode instances in turn delegate to CodeGeneration subclasses specialized for their particular functions -- ModuleCodeGenerator, ExpressionCodeGeneration, InteractiveCodeGenerator.
* Last set of change to get regression tests to passJeremy Hylton2001-09-171-1/+1
| | | | | | | | | | | Remove the only test in the syntax module. It ends up that the transformer must handle this error case. In the transformer, check for a list compression in com_assign_list() by looking for a list_for node where a comma is expected. In pycodegen.compile() re-raise the SyntaxError rather than catching it and exiting
* Handle more syntax errors.Jeremy Hylton2001-09-171-29/+32
| | | | | | | | Invoke compiler.syntax.check() after building AST. If a SyntaxError occurs, print the error and exit without generating a .pyc file. Refactor code to use compiler.misc.set_filename() rather than passing filename argument around to each CodeGenerator instance.
* support true divisionJeremy Hylton2001-09-171-1/+3
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* Add code generator for yield stmtJeremy Hylton2001-09-141-0/+5
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* Various sundry changes for 2.2 compatibilityJeremy Hylton2001-09-141-133/+89
| | | | | | | | | | | | | | | Remove the option to have nested scopes or old LGB scopes. This has a large impact on the code base, by removing the need for two variants of each CodeGenerator. Add a get_module() method to CodeGenerator objects, used to get the future features for the current module. Set CO_GENERATOR, CO_GENERATOR_ALLOWED, and CO_FUTURE_DIVISION flags as appropriate. Attempt to fix the value of nlocals in newCodeObject(), assuming that nlocals is 0 if CO_NEWLOCALS is not defined.
* Fix _convert_NAME() so that it doesn't store locals for class bodies.Jeremy Hylton2001-08-301-4/+7
| | | | | | | | | Fix list comp code generation -- emit GET_ITER instead of Const(0) after the list. Add CO_GENERATOR flag to generators. Get CO_xxx flags from the new module
* spurious popJeremy Hylton2001-08-301-1/+0
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* Track the block stack more reasonably in order to handle continue inJeremy Hylton2001-08-291-13/+45
| | | | | | | | try/except or try/finally. Previous versions had only track SETUP_LOOP blocks and ignored the exception part. This meant that it allowed continue inside a try/except but generated buggy code. Now it does the right thing.
* Generate SET_LINENO for list and tuple literals when the open parenJeremy Hylton2001-08-291-1/+3
| | | | | | | starts a new line. Also fix undetected typo in visitDict() -- uncovered by recent change to add lineno attrs to atoms.
* Support // and //=Jeremy Hylton2001-08-291-1/+6
| | | | | | | Generate SET_LINENO for del statements. Define klass=1 for PyFlowGraph constructor for a class statement. A class has no varnames.
* Make sure the JUMP_ABSOLUTE and POP_BLOCK at the end of a for loop areJeremy Hylton2001-08-281-1/+1
| | | | contiguous.
* Generate FOR_ITER-based loops instead of old FOR_LOOP-based loopsJeremy Hylton2001-08-281-5/+9
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* Handle private namesJeremy Hylton2001-08-271-13/+24
| | | | | | | | | | | | | | | | | | | (Hard to believe these were never handled before) Add misc.mangle() that mangles based on the rules in compile.c. XXX Need to test the corner cases Update CodeGenerator with a class_name attribute bound to None. If a particular instance is created within a class scope, the instance's class_name is bound to that class's name. Add mangle() method to CodeGenerator that mangles if the class_name has a class_name in it. Modify the FunctionCodeGenerator family to handle an extra argument-- the class_name. Wrap all name ops and attrnames in calls to self.mangle()
* emit SET_LINENO for augmented assignmentsJeremy Hylton2001-08-271-0/+4
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* Many changes -- bug fixes and sundry improvementsJeremy Hylton2001-08-271-33/+30
| | | | | | | | | | | | | | | | Make nested scopes enabled by default Add is_constant_false() helper so that compiled code and symbols are consistent with builtin compiler's handling of "if 0:" Fix doc string handling to be consistent with recent change that eliminates the doc string from the Module's node attribute. Add fix to print handling from Evan & Shane. Track change to visitor api by making "verbose" explicit. Comment out setting CO_NESTED flag (it's unnecessary in 2.2).
* Pop loop off the loop stack before handling the loop's else clause.Jeremy Hylton2001-04-121-4/+4
| | | | | | Otherwise, continue/break will attempt to affect the wrong loop. A few more fiddles to get the SET_LINENOs consistent across compilers.
* Use new _implicitNameOp() to generate name op code for list comprehensions.Jeremy Hylton2001-04-121-4/+17
| | | | | | | | | Always emit a SET_LINENO 0 at the beginning of the module. The builtin compiler does this, and it's much easier to compare bytecode generated by the two compilers if they both do. Move the SET_LINENO inside the FOR_LOOP block for list comprehensions. Also for compat. with builtin compiler.
* Add support for visitAssAttr to findOp().Jeremy Hylton2001-04-121-1/+1
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* pyassem.py:Jeremy Hylton2001-04-121-13/+11
| | | | | | | | | | | | | | | | Fix annoying bugs in flow graph layout code. In some cases the implicit control transfers weren't honored. In other cases, JUMP_FORWARD instructions jumped backwards. Remove unused arg from nextBlock(). pycodegen.py Add optional force kwarg to set_lineno() that will emit a SET_LINENO even if it is the same as the previous lineno. Use explicit LOAD_FAST and STORE_FAST to access list comp implicit variables. (The symbol table doesn't know about them.)
* Revise handling of tuple arguments so that the variables names matchJeremy Hylton2001-04-121-7/+7
| | | | those used by compile.c. (test_grammar now depends on the names)
* Fix unpackSequence() to use _nameOp() rather than LOAD_FASTJeremy Hylton2001-04-121-1/+2
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* Inside a class scope always use LOAD_NAME, STORE_NAME, DEL_NAMEJeremy Hylton2001-04-121-0/+3
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* Preliminary support for nested scopesJeremy Hylton2001-04-121-77/+228
| | | | | XXX Still doesn't work right for classes XXX Still doesn't do sufficient error checking
* typoJeremy Hylton2001-04-111-4/+8
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* [finishing fix from earlier checkins]Jeremy Hylton2001-04-111-0/+1
| | | | | | | Call set_lineno() in visitDiscard(), which will generate linenos for discard statements, e.g. the statement "1/0" Fixes SF bug #409587
* Generate docstrings.Jeremy Hylton2001-04-111-3/+26
| | | | | | | Fixes SF buf #217004 Add method fixDocstring() to CodeGenerator. It converts the Discard node containing the docstring into an assignment to __doc__.
* Add support for future statementsJeremy Hylton2001-04-091-6/+20
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* Change the graph structure to contain the code generator object forJeremy Hylton2000-11-061-9/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | embedded code objects (e.g. functions) rather than the generated code object. This change means that the compiler generates code for everything at the end, rather then generating code for each function as it finds it. Implementation note: _convert_LOAD_CONST in pyassem.py must be change to call getCode(). Other changes follow. Several changes creates extra edges between basic blocks to reflect control flow for loops and exceptions. These missing edges had gone unnoticed because they do not affect the current compilation process. pyassem.py: Add _enable_debug() and _disable_debug() methods that print instructions and blocks to stdout as they are generated. Add edges between blocks for instructions like SETUP_LOOP, FOR_LOOP, etc. Add pruneNext to get rid of bogus edges remaining after unconditional transfer ops (e.g. JUMP_FORWARD) Change repr of Block to omit block length. pycodegen.py: Make sure a new block is started after FOR_LOOP, etc. Change assert implementation to use RAISE_VARARGS 1 when there is no user-specified failure output. misc.py: Implement __contains__ and copy for Set.
* Now supports entire Python 2.0 language and still supports PythonJeremy Hylton2000-10-131-37/+241
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 1.5.2. The compiler generates code for the version of the interpreter it is run under. ast.py: Print and Printnl add dest attr for extended print new node AugAssign for augmented assignments new nodes ListComp, ListCompFor, and ListCompIf for list comprehensions pyassem.py: add work around for string-Unicode comparison raising UnicodeError on comparison of two objects in code object's const table pycodegen.py: define VERSION, the Python major version number get magic number using imp.get_magic() instead of hard coding implement list comprehensions, extended print, and augmented assignment; augmented assignment uses Delegator classes (see doc string) fix import and tuple unpacking for 1.5.2 transformer.py: various changes to support new 2.0 grammar and old 1.5 grammar add debug_tree helper than converts and symbol and token numbers to their names
* Fix SF bug #116263: support for from .. import *Jeremy Hylton2000-10-121-3/+8
| | | | | | transformer.py: return '*', None from com_import_as_name pycodegen.py: special case for name == '*' pyassem.py: fix stack counting for IMPORT_ opcodes
* patch by Neil Schemenauer to improve (fix?) line number generationJeremy Hylton2000-09-011-2/+6
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* Update magic number.Jeremy Hylton2000-09-011-8/+22
| | | | | | Fix import support to work with import as variant of Python 2.0. The grammar for import changed, requiring changes in transformer and code generator, even to handle compilation of imports with as.
* Bring Tools/compiler almost up to date. Specifically:Thomas Wouters2000-08-121-196/+199
| | | | | | | | | | - fix tab space issues (SF patch #101167 by Neil Schemenauer) - fix co_flags for classes to include CO_NEWLOCALS (SF patch #101145 by Neil) - fix for merger of UNPACK_LIST and UNPACK_TUPLE into UNPACK_SEQUENCE, (SF patch #101168 by, well, Neil :) - Adjust bytecode MAGIC to current bytecode. TODO: teach compile.py about list comprehensions.
* replace most calls to emit 'SET_LINENO' will call to method set_linenoJeremy Hylton2000-08-041-31/+42
| | | | based on bug report by Neil Schemenauer
* patches from Mark HammondJeremy Hylton2000-05-021-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Attached is a set of diffs for the .py compiler that adds support for the new extended call syntax. compiler/ast.py: CallFunc node gets 2 new children to support extended call syntax - "star_args" (for "*args") and "dstar_args" (for "**args") compiler/pyassem.py It appear that self.lnotab is supposed to be responsible for tracking line numbers, but self.firstlineno was still hanging around. Removed self.firstlineno completely. NOTE - I didnt actually test that the generated code has the correct line numbers!! Stack depth tracking appeared a little broken - the checks never made it beyond the "self.patterns" check - thus, the custom methods were never called! Fixed this. (XXX Jeremy notes: I think this code is still broken because it doesn't track stack effects across block bounaries.) Added support for the new extended call syntax opcodes for depth calculations. compiler/pycodegen.py Added support for the new extended call syntax opcodes. compiler/transformer.py Added support for the new extended call syntax.
* complete rewriteJeremy Hylton2000-03-161-517/+490
| | | | | | | | | code generator uses flowgraph as intermediate representation. the old rep uses a list with explicit "StackRefs" to indicate the target of jumps. pyassem converts flowgraph to bytecode, breaks up individual steps of generating bytecode
* rename compile.py to pycodegen.pyJeremy Hylton2000-03-061-176/+25
| | | | | | | | | | fix imports remove parse functions and visitor code track name change: Classdef to Class add some comments and tweak order of visitXXX methods get rid of if __name__ == "__main__ section
* the previous quick hack to fix def foo((x,y)) failed on some casesJeremy Hylton2000-02-171-7/+25
| | | | | | | | | | | | | | | (big surprise). new solution is a little less hackish. Code gen adds a TupleArg instance in the argument slot. The tuple arg includes a copy of the names that it is responsble for binding. The PyAssembler uses this information to calculate the correct argcount. all fix this wacky case: del (a, ((b,), c)), d which is the same as: del a, b, c, d (Can't wait for Guido to tell me why.) solution uses findOp which walks a tree to find out whether it contains OP_ASSIGN or OP_DELETE or ...
* satisfy the tabnannyJeremy Hylton2000-02-171-197/+199
| | | | fix broken references to filename var in generateXXX methods
* support for arglists with implicit tuple unpacksJeremy Hylton2000-02-161-15/+61
| | | | | | | | | | | | | | - added a number of support methods to generate code just before the body - hack protocol for communicating number of args to PyAssembler fix TryExcept generation for case where exception handler has no body fix visitAssAttr add comment about incomplete visitAssName stop using the ExampleASTVisitor change script invocation to accept a list of .py files (e.g. Lib/*.py)
* finish first impl of code generatorJeremy Hylton2000-02-151-12/+70
| | | | | add support for nodes TryExcept, TryFinally, Sliceobj fix visitSubscript to properly handle x[a,b,c]
* edit a doc stringJeremy Hylton2000-02-141-1/+6
| | | | (real intent is to test out rsync install)
* get rid of spurious printJeremy Hylton2000-02-141-1/+0
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* looks like everything is working except for try/except (pystoneJeremy Hylton2000-02-141-6/+14
| | | | compiles correctly)
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