diff options
Diffstat (limited to 'mesonbuild/interpreterbase.py')
| -rw-r--r-- | mesonbuild/interpreterbase.py | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/mesonbuild/interpreterbase.py b/mesonbuild/interpreterbase.py index 1c74eeb..22bb95b 100644 --- a/mesonbuild/interpreterbase.py +++ b/mesonbuild/interpreterbase.py @@ -21,6 +21,14 @@ from . import environment, dependencies import os, copy, re, types from functools import wraps +class ObjectHolder: + def __init__(self, obj, subproject=None): + self.held_object = obj + self.subproject = subproject + + def __repr__(self): + return '<Holder: {!r}>'.format(self.held_object) + # Decorators for method calls. def check_stringlist(a, msg='Arguments must be strings.'): @@ -487,6 +495,13 @@ class InterpreterBase: return False return True + def evaluate_in(self, val1, val2): + if not isinstance(val1, (str, int, float, ObjectHolder)): + raise InvalidArguments('lvalue of "in" operator must be a string, integer, float, or object') + if not isinstance(val2, (list, dict)): + raise InvalidArguments('rvalue of "in" operator must be an array or a dict') + return val1 in val2 + def evaluate_comparison(self, node): val1 = self.evaluate_statement(node.left) if is_disabler(val1): @@ -494,6 +509,10 @@ class InterpreterBase: val2 = self.evaluate_statement(node.right) if is_disabler(val2): return val2 + if node.ctype == 'in': + return self.evaluate_in(val1, val2) + elif node.ctype == 'notin': + return not self.evaluate_in(val1, val2) valid = self.validate_comparison_types(val1, val2) # Ordering comparisons of different types isn't allowed since PR #1810 # (0.41.0). Since PR #2884 we also warn about equality comparisons of |