diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/clang.rs | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/clang.rs b/src/clang.rs index 04d5c9d3..80cc77de 100644 --- a/src/clang.rs +++ b/src/clang.rs @@ -911,6 +911,13 @@ impl Type { /// Get the number of template arguments this type has, or `None` if it is /// not some kind of template. pub fn num_template_args(&self) -> Option<u32> { + // If an old libclang is loaded, we have no hope of answering this + // question correctly. However, that's no reason to panic when + // generating bindings for simple C headers with an old libclang. + if !clang_Type_getNumTemplateArguments::is_loaded() { + return None + } + let n = unsafe { clang_Type_getNumTemplateArguments(self.x) }; if n >= 0 { Some(n as u32) @@ -1639,8 +1646,11 @@ pub fn ast_dump(c: &Cursor, depth: isize) -> CXChildVisitResult { depth, format!(" {}spelling = \"{}\"", prefix, ty.spelling()), ); - let num_template_args = - unsafe { clang_Type_getNumTemplateArguments(ty.x) }; + let num_template_args = if clang_Type_getNumTemplateArguments::is_loaded() { + unsafe { clang_Type_getNumTemplateArguments(ty.x) } + } else { + -1 + }; if num_template_args >= 0 { print_indent( depth, |