comparison mercurial/templater.py @ 34581:ee0d74083a22

templater: store revisions as ints so min/max won't compare them as strings

Because a template value has no explicit type (like ancient PHP), ifcontains()
has to coerce the type of the needle. Before, it was always converted to a
string, which meant any container type should be a list/dict of strings.
This no longer works since we've introduced min/max functions.

In order to work around the untyped nature of templater, this patch adds
a type specifier to hybrid dict/list. It isn't named as "valuetype" since
the _hybrid class can also wrap a dict.

34580:7259f0ddfc0f

        return thing
    # other objects are evaluated as strings, which means 0 is True, but
    # empty dict/list should be False as they are expected to be ''
    return bool(stringify(thing))

def evalinteger(context, mapping, arg, err):
    v = evalfuncarg(context, mapping, arg)
    try:
        return int(v)
    except (TypeError, ValueError):
        raise error.ParseError(err)

def evalstring(context, mapping, arg):
    return stringify(evalrawexp(context, mapping, arg))

def evalstringliteral(context, mapping, arg):

    if func is runsymbol:
        thing = func(context, mapping, data, default=data)
    else:
        thing = func(context, mapping, data)
    return stringify(thing)

def runinteger(context, mapping, data):
    return int(data)

def runstring(context, mapping, data):

    on whether the item "needle" is in "haystack"."""
    if not (3 <= len(args) <= 4):
        # i18n: "ifcontains" is a keyword
        raise error.ParseError(_("ifcontains expects three or four arguments"))

    needle = evalstring(context, mapping, args[0])
    haystack = evalfuncarg(context, mapping, args[1])

    if needle in haystack:
        yield evalrawexp(context, mapping, args[2])
    elif len(args) == 4:
        yield evalrawexp(context, mapping, args[3])

34581:ee0d74083a22

        return thing
    # other objects are evaluated as strings, which means 0 is True, but
    # empty dict/list should be False as they are expected to be ''
    return bool(stringify(thing))

def evalinteger(context, mapping, arg, err=None):
    v = evalfuncarg(context, mapping, arg)
    try:
        return int(v)
    except (TypeError, ValueError):
        raise error.ParseError(err or _('not an integer'))

def evalstring(context, mapping, arg):
    return stringify(evalrawexp(context, mapping, arg))

def evalstringliteral(context, mapping, arg):

    if func is runsymbol:
        thing = func(context, mapping, data, default=data)
    else:
        thing = func(context, mapping, data)
    return stringify(thing)

_evalfuncbytype = {
    bool: evalboolean,
    bytes: evalstring,
    int: evalinteger,
}

def evalastype(context, mapping, arg, typ):
    """Evaluate given argument and coerce its type"""
    try:
        f = _evalfuncbytype[typ]
    except KeyError:
        raise error.ProgrammingError('invalid type specified: %r' % typ)
    return f(context, mapping, arg)

def runinteger(context, mapping, data):
    return int(data)

def runstring(context, mapping, data):

    on whether the item "needle" is in "haystack"."""
    if not (3 <= len(args) <= 4):
        # i18n: "ifcontains" is a keyword
        raise error.ParseError(_("ifcontains expects three or four arguments"))

    haystack = evalfuncarg(context, mapping, args[1])
    needle = evalastype(context, mapping, args[0],
                        getattr(haystack, 'keytype', None) or bytes)

    if needle in haystack:
        yield evalrawexp(context, mapping, args[2])
    elif len(args) == 4:
        yield evalrawexp(context, mapping, args[3])