2 files changed, 104 insertions, 0 deletions
diff --git a/third_party/rust/wasmparser-0.48.2/examples/dump.rs b/third_party/rust/wasmparser-0.48.2/examples/dump.rs
new file mode 100644
index 0000000000..f0defb4000
--- /dev/null
+++ b/third_party/rust/wasmparser-0.48.2/examples/dump.rs
@@ -0,0 +1,57 @@
+extern crate wasmparser;
+
+use std::env;
+use std::fs::File;
+use std::io;
+use std::io::prelude::*;
+use std::str;
+use wasmparser::Parser;
+use wasmparser::ParserState;
+use wasmparser::WasmDecoder;
+
+fn main() {
+    let args = env::args().collect::<Vec<_>>();
+    if args.len() != 2 {
+        println!("Usage: {} in.wasm", args[0]);
+        return;
+    }
+
+    let buf: Vec<u8> = read_wasm(&args[1]).unwrap();
+    let mut parser = Parser::new(&buf);
+    loop {
+        print!("0x{:08x}\t", parser.current_position());
+        let state = parser.read();
+        match *state {
+            ParserState::ExportSectionEntry {
+                field,
+                ref kind,
+                index,
+            } => {
+                println!(
+                    "ExportSectionEntry {{ field: \"{}\", kind: {:?}, index: {} }}",
+                    field, kind, index
+                );
+            }
+            ParserState::ImportSectionEntry {
+                module,
+                field,
+                ref ty,
+            } => {
+                println!(
+                    "ImportSectionEntry {{ module: \"{}\", field: \"{}\", ty: {:?} }}",
+                    module, field, ty
+                );
+            }
+            ParserState::EndWasm => break,
+            ParserState::Error(err) => panic!("Error: {:?}", err),
+            _ => println!("{:?}", state),
+        }
+    }
+}
+
+fn read_wasm(file: &str) -> io::Result<Vec<u8>> {
+    let mut data = Vec::new();
+    let mut f = File::open(file)?;
+    f.read_to_end(&mut data)?;
+    Ok(data)
+}
diff --git a/third_party/rust/wasmparser-0.48.2/examples/simple.rs b/third_party/rust/wasmparser-0.48.2/examples/simple.rs
new file mode 100644
index 0000000000..132aa41f9f
--- /dev/null
+++ b/third_party/rust/wasmparser-0.48.2/examples/simple.rs
@@ -0,0 +1,47 @@
+extern crate wasmparser;
+
+use std::env;
+use std::fs::File;
+use std::io;
+use std::io::prelude::*;
+use std::str;
+use wasmparser::Parser;
+use wasmparser::ParserState;
+use wasmparser::WasmDecoder;
+
+fn main() {
+    let args = env::args().collect::<Vec<_>>();
+    if args.len() != 2 {
+        println!("Usage: {} in.wasm", args[0]);
+        return;
+    }
+
+    let buf: Vec<u8> = read_wasm(&args[1]).unwrap();
+    let mut parser = Parser::new(&buf);
+    loop {
+        let state = parser.read();
+        match *state {
+            ParserState::BeginWasm { .. } => {
+                println!("====== Module");
+            }
+            ParserState::ExportSectionEntry {
+                field, ref kind, ..
+            } => {
+                println!("  Export {} {:?}", field, kind);
+            }
+            ParserState::ImportSectionEntry { module, field, .. } => {
+                println!("  Import {}::{}", module, field)
+            }
+            ParserState::EndWasm => break,
+            ParserState::Error(err) => panic!("Error: {:?}", err),
+            _ => ( /* println!(" Other {:?}", state); */ ),
+        }
+    }
+}
+
+fn read_wasm(file: &str) -> io::Result<Vec<u8>> {
+    let mut data = Vec::new();
+    let mut f = File::open(file)?;
+    f.read_to_end(&mut data)?;
+    Ok(data)
+}