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* import.c (get_module): pass .py filename to parse_file, not .pyc filename!

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* funcobject.c (func_repr): don't call getstringvalue(None) for anonymous
  functions.
* bltinmodule.c: removed lambda (which is now a built-in function);
  removed implied lambda for string arg to filter/map/reduce.
* Grammar, graminit.[ch], compile.[ch]: replaced lambda as built-in
  function by lambda as grammar entity: instead of "lambda('x: x+1')" you
  write "lambda x: x+1".
* Xtmodule.c (checkargdict): return 0, not NULL, for error.
This commit is contained in:
Guido van Rossum 1993-11-30 13:40:46 +00:00
parent 8732d6aeea
commit 590baa4a7a
8 changed files with 757 additions and 783 deletions
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12
Grammar/Grammar
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@ -2,6 +2,9 @@
# Change log:
# 30-Nov-93:
# Removed lambda_input, added lambdef
# 25-Oct-93:
# Added lambda_input
@ -77,14 +80,12 @@
# Start symbols for the grammar:
# single_input is a single interactive statement;
# file_input is a module or sequence of commands read from an input file;
# eval_input is the input for the eval() and input() functions;
# lambda_input is the input for the proposed lambda() function.
# eval_input is the input for the eval() and input() functions.
# NB: compound_stmt in single_input is followed by extra NEWLINE!
single_input: NEWLINE | simple_stmt | compound_stmt NEWLINE
file_input: (NEWLINE | stmt)* ENDMARKER
eval_input: testlist NEWLINE* ENDMARKER
lambda_input: varargslist ':' testlist NEWLINE* ENDMARKER
funcdef: 'def' NAME parameters ':' suite
parameters: '(' [varargslist] ')'
@ -134,7 +135,10 @@ shift_expr: arith_expr (('<<'|'>>') arith_expr)*
arith_expr: term (('+'|'-') term)*
term: factor (('*'|'/'|'%') factor)*
factor: ('+'|'-'|'~') factor | atom trailer*
atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' [dictmaker] '}' | '`' testlist '`' | NAME | NUMBER | STRING
atom: '(' [testlist] ')' | '[' [testlist] ']' | '{' [dictmaker] '}' | '`' testlist '`' | lambdef | NAME | NUMBER | STRING
# Note ambiguity in grammar: "lambda x: x[1]" could mean "(lambda x: x)[1]"
# but the parser is eager so interprets it as "lambda x: (x[1])"...
lambdef: 'lambda' [varargslist] ':' test
trailer: '(' [testlist] ')' | '[' subscript ']' | '.' NAME
subscript: test | [test] ':' [test]
exprlist: expr (',' expr)* [',']