4.20 Using the Slice Compilers

Ice provides a separate Slice compiler for each language mapping, as shown in Table 4.3.

Table 4.3. The Slice compilers.

Language	Compiler
C++	slice2cpp
Java	slice2java
C#	slice2cs
Python	slice2py
Ruby	slice2rb
Objective‑C	slice2objc

The compilers share a similar command-line syntax:

<compiler‑name> [options] file…

Regardless of which compiler you use, a number of command-line options are common to the compilers for any language mapping. (See the appropriate language mapping chapter for options that are specific to a particular language mapping.) The common command-line options are:

• ‑h, ‑‑help

Displays a help message.

• ‑v, ‑‑version

Displays the compiler version.

• ‑DNAME

Defines the preprocessor symbol NAME.

• ‑DNAME=DEF

Defines the preprocessor symbol NAME with the value DEF.

• ‑UNAME

Undefines the preprocessor symbol NAME.

• ‑IDIR

Add the directory DIR to the search path for #include directives.

• ‑E

Print the preprocessor output on stdout.

• ‑‑output‑dir DIR

Place the generated files into directory DIR.

• ‑d, ‑‑debug

Print debug information showing the operation of the Slice parser.

• ‑‑ice

Permit use of the normally reserved prefix Ice for identifiers. Use this option only when compiling the source code for the Ice run time.

The Slice compilers permit you to compile more than a single source file, so you can compile several Slice definitions at once, for example:

slice2cpp ‑I. file1.ice file2.ice file3.ice