Initial project import

tools/v/vlib/builtin/wasm/wasi/builtin_notd_no_imports.v

@@ -0,0 +1,61 @@
+module builtin
+
+// print prints a message to stdout. Unlike `println` stdout is not automatically flushed.
+pub fn print(s string) {
+	elm := CIOVec{
+		buf: s.str
+		len: usize(s.len)
+	}
+
+	WASM.fd_write(1, &elm, 1, 0)
+}
+
+// println prints a message with a line end, to stdout.
+pub fn println(s string) {
+	elm := [CIOVec{
+		buf: s.str
+		len: usize(s.len)
+	}, CIOVec{
+		buf: c'\n'
+		len: 1
+	}]!
+
+	WASM.fd_write(1, &elm[0], 2, 0)
+}
+
+// eprint prints a message to stderr.
+pub fn eprint(s string) {
+	elm := CIOVec{
+		buf: s.str
+		len: usize(s.len)
+	}
+
+	WASM.fd_write(2, &elm, 1, 0)
+}
+
+// eprintln prints a message with a line end, to stderr.
+pub fn eprintln(s string) {
+	elm := [CIOVec{
+		buf: s.str
+		len: usize(s.len)
+	}, CIOVec{
+		buf: c'\n'
+		len: 1
+	}]!
+
+	WASM.fd_write(2, &elm[0], 2, 0)
+}
+
+// exit terminates execution immediately and returns exit `code` to the shell.
+@[noreturn]
+pub fn exit(code int) {
+	WASM.proc_exit(code)
+}
+
+// panic prints a nice error message, then exits the process with exit code of 1.
+@[noreturn]
+pub fn panic(s string) {
+	eprint('V panic: ')
+	eprintln(s)
+	exit(1)
+}

tools/v/vlib/builtin/wasm/wasi/wasi_notd_no_imports.v

@@ -0,0 +1,32 @@
+module builtin
+
+pub struct CIOVec {
+pub:
+	buf &u8
+	len usize
+}
+
+type Errno = u16
+type FileDesc = int
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.args_sizes_get(argc &u32, argc_buf_size &u32) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.args_get(argv &&u8, argv_buf &u8) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.fd_write(fd FileDesc, iovs &CIOVec, iovs_len usize, retptr &usize) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.fd_read(fd FileDesc, iovs &CIOVec, iovs_len usize, nread &usize) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.fd_sync(fd FileDesc) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+fn WASM.random_get(buf &u8, buf_len usize) Errno
+
+@[wasm_import_namespace: 'wasi_snapshot_preview1']
+@[noreturn]
+fn WASM.proc_exit(rval int)