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40 lines
1.0 KiB
40 lines
1.0 KiB
/*
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* Bound function representation.
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*/
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#if !defined(DUK_HBOUNDFUNC_H_INCLUDED)
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#define DUK_HBOUNDFUNC_H_INCLUDED
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/* Artificial limit for args length. Ensures arithmetic won't overflow
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* 32 bits when combining bound functions.
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*/
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#define DUK_HBOUNDFUNC_MAX_ARGS 0x20000000UL
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#define DUK_ASSERT_HBOUNDFUNC_VALID(h) do { \
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DUK_ASSERT((h) != NULL); \
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DUK_ASSERT(DUK_HOBJECT_IS_BOUNDFUNC((duk_hobject *) (h))); \
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DUK_ASSERT(DUK_TVAL_IS_LIGHTFUNC(&(h)->target) || \
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(DUK_TVAL_IS_OBJECT(&(h)->target) && \
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DUK_HOBJECT_IS_CALLABLE(DUK_TVAL_GET_OBJECT(&(h)->target)))); \
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DUK_ASSERT(!DUK_TVAL_IS_UNUSED(&(h)->this_binding)); \
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DUK_ASSERT((h)->nargs == 0 || (h)->args != NULL); \
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} while (0)
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struct duk_hboundfunc {
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/* Shared object part. */
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duk_hobject obj;
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/* Final target function, stored as duk_tval so that lightfunc can be
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* represented too.
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*/
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duk_tval target;
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/* This binding. */
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duk_tval this_binding;
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/* Arguments to prepend. */
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duk_tval *args;
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duk_idx_t nargs;
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};
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#endif /* DUK_HBOUNDFUNC_H_INCLUDED */
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