58 lines
4.9 KiB
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58 lines
4.9 KiB
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<TITLE>CLHS: Standard Generic Function ADD-METHOD</TITLE>
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<A NAME="add-method"><I>Standard Generic Function</I> <B>ADD-METHOD</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>add-method</B> <I>generic-function method</I> => <I>generic-function</I><P>
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<P>
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<P><B>Method Signatures:</B><P>
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<P>
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<B>add-method</B> <I>(<I>generic-function</I><B> <A REL=DEFINITION HREF="t_std_ge.htm#standard-generic-function">standard-generic-function</A></B>) (<I>method</I><B> <A REL=DEFINITION HREF="t_method.htm#method">method</A></B>)</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<P>
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<I>generic-function</I>---a <A REL=DEFINITION HREF="26_glo_g.htm#generic_function"><I>generic function</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A>. <P>
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<I>method</I>---a <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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The generic function <A REL=DEFINITION HREF="#add-method"><B>add-method</B></A> adds a <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> to a <A REL=DEFINITION HREF="26_glo_g.htm#generic_function"><I>generic function</I></A>. <P>
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If <I>method</I> agrees with an existing <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> of <I>generic-function</I> on <A REL=DEFINITION HREF="26_glo_p.htm#parameter_specializer"><I>parameter specializers</I></A> and <A REL=DEFINITION HREF="26_glo_q.htm#qualifier"><I>qualifiers</I></A>, the existing <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> is replaced. <P>
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<P><B>Examples:</B> None.
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<P>
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<P><B>Affected By:</B> None.
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<P>
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<P><B>Exceptional Situations:</B><P>
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<P>
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The <A REL=DEFINITION HREF="26_glo_l.htm#lambda_list"><I>lambda list</I></A> of the method function of <I>method</I> must be congruent with the <A REL=DEFINITION HREF="26_glo_l.htm#lambda_list"><I>lambda list</I></A> of <I>generic-function</I>, or an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_error.htm#error"><B>error</B></A> is signaled. <P>
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If <I>method</I> is a <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> of another <A REL=DEFINITION HREF="26_glo_g.htm#generic_function"><I>generic function</I></A>, an error of <A REL=DEFINITION HREF="26_glo_t.htm#type"><I>type</I></A> <A REL=DEFINITION HREF="e_error.htm#error"><B>error</B></A> is signaled. <P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="m_defmet.htm#defmethod"><B>defmethod</B></A>, <A REL=DEFINITION HREF="m_defgen.htm#defgeneric"><B>defgeneric</B></A>, <A REL=DEFINITION HREF="f_find_m.htm#find-method"><B>find-method</B></A>, <A REL=DEFINITION HREF="f_rm_met.htm#remove-method"><B>remove-method</B></A>, <A REL=CHILD HREF="07_fc.htm">Section 7.6.3 (Agreement on Parameter Specializers and Qualifiers)</A> <P>
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<P><B>Notes:</B> None.
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