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Add --dot flag to parse subcommand, for printing tree as DOT graph

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This commit is contained in:
Max Brunsfeld 2023-02-13 12:33:34 -08:00
parent 8389ffd2a1
commit 97fd990822
10 changed files with 106 additions and 43 deletions
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7
lib/binding_rust/bindings.rs
View file

@ -346,6 +346,9 @@ extern "C" {
pub fn ts_tree_language(arg1: *const TSTree) -> *const TSLanguage;
}
extern "C" {
#[doc = " Get the array of included ranges that was used to parse the syntax tree."]
#[doc = ""]
#[doc = " The returned pointer must be freed by the caller."]
pub fn ts_tree_included_ranges(arg1: *const TSTree, length: *mut u32) -> *mut TSRange;
}
extern "C" {
@ -375,6 +378,10 @@ extern "C" {
length: *mut u32,
) -> *mut TSRange;
}
extern "C" {
#[doc = " Write a DOT graph describing the syntax tree to the given file."]
pub fn ts_tree_print_dot_graph(arg1: *const TSTree, file_descriptor: ::std::os::raw::c_int);
}
extern "C" {
#[doc = " Get the node's type as a null-terminated string."]
pub fn ts_node_type(arg1: TSNode) -> *const ::std::os::raw::c_char;

10
lib/binding_rust/lib.rs
View file

@ -775,6 +775,16 @@ impl Tree {
result
}
}
/// Print a graph of the tree to the given file descriptor.
/// The graph is formatted in the DOT language. You may want to pipe this graph
/// directly to a `dot(1)` process in order to generate SVG output.
#[cfg(unix)]
#[doc(alias = "ts_tree_print_dot_graph")]
pub fn print_dot_graph(&self, file: &impl AsRawFd) {
let fd = file.as_raw_fd();
unsafe { ffi::ts_tree_print_dot_graph(self.0.as_ptr(), fd) }
}
}
impl fmt::Debug for Tree {