Python dict_to_switch Exemples

Exemple #1

Fichier : optimize.py Projet : nipengadmaster/pypy

unary_folders = {
    ast.Not: _fold_not,
    ast.USub: _unary_fold("neg"),
    ast.UAdd: _unary_fold("pos"),
    ast.Invert: _unary_fold("invert")
}
unrolling_unary_folders = unrolling_iterable(unary_folders.items())

for folder in binary_folders.values() + unary_folders.values():
    folder._always_inline_ = True
del folder

opposite_compare_operations = misc.dict_to_switch({
    ast.Is: ast.IsNot,
    ast.IsNot: ast.Is,
    ast.In: ast.NotIn,
    ast.NotIn: ast.In
})


class OptimizingVisitor(ast.ASTVisitor):
    """Constant folds AST."""
    def __init__(self, space, compile_info):
        self.space = space
        self.compile_info = compile_info

    def default_visitor(self, node):
        return node

    def visit_BinOp(self, binop):
        left = binop.left.as_constant()

Exemple #2

Fichier : codegen.py Projet : chenyfsysu/PythonNote

from rpython.rlib.objectmodel import specialize
from pypy.interpreter.astcompiler import ast, assemble, symtable, consts, misc
from pypy.interpreter.astcompiler import optimize # For side effects
from pypy.interpreter.pyparser.error import SyntaxError
from pypy.tool import stdlib_opcode as ops


def compile_ast(space, module, info):
    """Generate a code object from AST."""
    symbols = symtable.SymtableBuilder(space, module, info)
    return TopLevelCodeGenerator(space, module, symbols, info).assemble()


name_ops_default = misc.dict_to_switch({
    ast.Load: ops.LOAD_NAME,
    ast.Store: ops.STORE_NAME,
    ast.Del: ops.DELETE_NAME
})

name_ops_fast = misc.dict_to_switch({
    ast.Load: ops.LOAD_FAST,
    ast.Store: ops.STORE_FAST,
    ast.Del: ops.DELETE_FAST
})

name_ops_deref = misc.dict_to_switch({
    ast.Load: ops.LOAD_DEREF,
    ast.Store: ops.STORE_DEREF,
})

name_ops_global = misc.dict_to_switch({

Exemple #3

Fichier : codegen.py Projet : Darriall/pypy

from pypy.interpreter.astcompiler import ast, assemble, symtable, consts, misc
from pypy.interpreter.astcompiler import optimize # For side effects
from pypy.interpreter.pyparser.error import SyntaxError
from pypy.tool import stdlib_opcode as ops


def compile_ast(space, module, info):
    """Generate a code object from AST."""
    symbols = symtable.SymtableBuilder(space, module, info)
    return TopLevelCodeGenerator(space, module, symbols, info).assemble()


name_ops_default = misc.dict_to_switch({
    ast.Load: ops.LOAD_NAME,
    ast.Store: ops.STORE_NAME,
    ast.Del: ops.DELETE_NAME
})

name_ops_fast = misc.dict_to_switch({
    ast.Load: ops.LOAD_FAST,
    ast.Store: ops.STORE_FAST,
    ast.Del: ops.DELETE_FAST
})

name_ops_deref = misc.dict_to_switch({
    ast.Load: ops.LOAD_DEREF,
    ast.Store: ops.STORE_DEREF,
})

name_ops_global = misc.dict_to_switch({

Exemple #4

unary_folders = {
    ast.Not : _fold_not,
    ast.USub : _unary_fold("neg"),
    ast.UAdd : _unary_fold("pos"),
    ast.Invert : _unary_fold("invert")
}
unrolling_unary_folders = unrolling_iterable(unary_folders.items())

for folder in binary_folders.values() + unary_folders.values():
    folder._always_inline_ = True
del folder

opposite_compare_operations = misc.dict_to_switch({
    ast.Is : ast.IsNot,
    ast.IsNot : ast.Is,
    ast.In : ast.NotIn,
    ast.NotIn : ast.In
})


class OptimizingVisitor(ast.ASTVisitor):
    """Constant folds AST."""

    def __init__(self, space, compile_info):
        self.space = space
        self.compile_info = compile_info

    def default_visitor(self, node):
        return node

    def visit_BinOp(self, binop):