* Update argument spec parse logic of parse-args function.
* Update test case of parse-args function.
* Update document of parse-args function.
* Describe the change in NEWS file.
Compiler and command-line error messages now reflect their Python counterparts.
E.g. where Python emits a `SyntaxError`, so does Hy; same for `TypeError`s.
Multiple tests have been added that check the format and type of raised
exceptions over varying command-line invocations (e.g. interactive and not).
A new exception type for `require` errors was added so that they can be treated
like normal run-time errors and not compiler errors.
The Hy REPL has been further refactored to better match the class-structured
API. Now, different error types are handled separately and leverage more base
class-provided functionality.
Closeshylang/hy#1486.
Functions and variables relating to compilation and parsing have been moved to
`compiler.py` and `lex/__init__.py`, respectively. Those functions are
- `hy_parse` from `hy.importer` to `hy.lex`
- `hy_eval`, `ast_compile`, and `calling_module` from `hy.importer` to
`hy.compiler`
Closeshylang/hy#1695.
Fixes:
>>> from hy._compat import isidentifier
>>> isidentifier(u" 0\n 0")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "hy/_compat.py", line 47, in isidentifier
tokens = list(T.generate_tokens(StringIO(x).readline))
File "/usr/lib/python2.7/tokenize.py", line 374, in generate_tokens
("<tokenize>", lnum, pos, line))
File "<tokenize>", line 2
0
^
IndentationError: unindent does not match any outer indentation level
This commit adds just enough namespacing to resolve a macro first in the macro's
defining module's namespace (i.e. the module assigned to the `HyASTCompiler`),
then in the namespace/module it's evaluated in. Namespacing is accomplished by
adding a `module` attribute to `HySymbol`, so that `HyExpression`s can be
checked for this definition namespace attribute and their car symbol resolved
per the above.
As well, a couple tests have been added that cover
- the loading of module-level macros
- e.g. that only macros defined in the `require`d module are added
- the AST generated for `require`
- using macros loaded from modules imported via bytecode
- the non-local macro namespace resolution described above
- a `require`d macro that uses a macro `require` exclusively in its
module-level namespace
- and that (second-degree `require`d) macros can reference variables within
their module-level namespaces.
Closeshylang/hy#1268, closeshylang/hy#1650, closeshylang/hy#1416.
Ryan Gonzalez