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compile values in tail position

This commit is contained in:
Yuichi Nishiwaki 2014-02-20 18:00:30 +09:00
parent 742be0b2c0
commit 942e053cde
1 changed files with 11 additions and 0 deletions
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11
src/codegen.c
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@ -88,6 +88,7 @@ typedef struct analyze_state {
pic_sym rCONS, rCAR, rCDR, rNILP; pic_sym rCONS, rCAR, rCDR, rNILP;
pic_sym rADD, rSUB, rMUL, rDIV; pic_sym rADD, rSUB, rMUL, rDIV;
pic_sym rEQ, rLT, rLE, rGT, rGE, rNOT; pic_sym rEQ, rLT, rLE, rGT, rGE, rNOT;
pic_sym rVALUES;
pic_sym sCALL, sTAILCALL, sREF, sRETURN; pic_sym sCALL, sTAILCALL, sREF, sRETURN;
} analyze_state; } analyze_state;
@ -134,6 +135,7 @@ new_analyze_state(pic_state *pic)
register_renamed_symbol(pic, state, rGT, stdlib, ">"); register_renamed_symbol(pic, state, rGT, stdlib, ">");
register_renamed_symbol(pic, state, rGE, stdlib, ">="); register_renamed_symbol(pic, state, rGE, stdlib, ">=");
register_renamed_symbol(pic, state, rNOT, stdlib, "not"); register_renamed_symbol(pic, state, rNOT, stdlib, "not");
register_renamed_symbol(pic, state, rVALUES, stdlib, "values");
register_symbol(pic, state, sCALL, "call"); register_symbol(pic, state, sCALL, "call");
register_symbol(pic, state, sTAILCALL, "tail-call"); register_symbol(pic, state, sTAILCALL, "tail-call");
@ -540,6 +542,15 @@ analyze_node(analyze_state *state, pic_value obj, bool tailpos)
ARGC_ASSERT(1); ARGC_ASSERT(1);
return CONSTRUCT_OP1(pic->sNOT); return CONSTRUCT_OP1(pic->sNOT);
} }
else if (sym == state->rVALUES && tailpos) {
pic_value v, seq;
seq = pic_list(pic, 1, pic_symbol_value(state->sRETURN));
pic_for_each (v, pic_cdr(pic, obj)) {
seq = pic_cons(pic, analyze(state, v, false), seq);
}
return pic_reverse(pic, seq);
}
} }
return analyze_call(state, obj, tailpos); return analyze_call(state, obj, tailpos);
} }