1 files changed, 49 insertions, 0 deletions
diff --git a/third_party/rust/parity-wasm/examples/info.rs b/third_party/rust/parity-wasm/examples/info.rs
new file mode 100644
index 0000000000..9717651df6
--- /dev/null
+++ b/third_party/rust/parity-wasm/examples/info.rs
@@ -0,0 +1,49 @@
+extern crate parity_wasm;
+
+use std::env;
+use parity_wasm::elements::Section;
+
+fn main() {
+	let args = env::args().collect::<Vec<_>>();
+	if args.len() != 2 {
+		println!("Usage: {} somefile.wasm", args[0]);
+		return;
+	}
+
+	let module = parity_wasm::deserialize_file(&args[1]).expect("Failed to load module");
+
+	println!("Module sections: {}", module.sections().len());
+
+	for section in module.sections() {
+		match *section {
+			Section::Import(ref import_section) => {
+				println!("  Imports: {}", import_section.entries().len());
+				import_section.entries().iter().map(|e| println!("    {}.{}", e.module(), e.field())).count();
+			},
+			Section::Export(ref exports_section) => {
+				println!("  Exports: {}", exports_section.entries().len());
+				exports_section.entries().iter().map(|e| println!("    {}", e.field())).count();
+			},
+			Section::Function(ref function_section) => {
+				println!("  Functions: {}", function_section.entries().len());
+			},
+			Section::Type(ref type_section) => {
+				println!("  Types: {}", type_section.types().len());
+			},
+			Section::Global(ref globals_section) => {
+				println!("  Globals: {}", globals_section.entries().len());
+			},
+			Section::Table(ref table_section) => {
+				println!("  Tables: {}", table_section.entries().len());
+			},
+			Section::Memory(ref memory_section) => {
+				println!("  Memories: {}", memory_section.entries().len());
+			},
+			Section::Data(ref data_section) if data_section.entries().len() > 0 => {
+				let data = &data_section.entries()[0];
+				println!("  Data size: {}", data.value().len());
+			},
+			_ => {},
+		}
+	}
+}
+\ No newline at end of file