Re: representing functions with arguments in an abstract syntax tree

"jacob navia" <jacob@jacob.remcomp.fr>
2 Jan 2004 03:43:38 -0500

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From: "jacob navia" <jacob@jacob.remcomp.fr>
Newsgroups: comp.compilers,comp.lang.c
Date: 2 Jan 2004 03:43:38 -0500
Organization: Wanadoo, l'internet avec France Telecom
References: 03-12-142
Keywords: code
Posted-Date: 02 Jan 2004 03:43:38 EST

Just do this:

typedef union _BuiltinUnion {
        int (*FunctionNoArgs)(void);
        Node *(Function1argReturnsNode)(Node *p);
        ...
        etc
        ...
} BUILTIN_UNION; // Uppercase looks ugly but, why not.

Then, in your code you write:

        u.FunctionNoArgs()
        or
        Node *a = u.Function1argReturnsNode(pNode);

Since the compiler has seen the prototypes, it will generate correctly
the
call.

Jacob Navia
http://www.cs.virginia.edu/~lcc-win32

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