coolguy
c06f5c50c4
lowering 의 변수·정리 목록·오류 이름 세 배열은 넘치면 오류가 아니라 넘친 것을 버리고 틀린 코드를 냈다. 한계에 닿는 방식 중 최악이다. 이제 자란다. 코드 생성기는 지역이 512개를 넘으면 함수를 아예 방출하지 않고 지나갔다. 이제 지역 수만큼 자리를 잡는다. 유닛 64 -> 256, 제네릭 인스턴스 512 -> 4096. 둘 다 원래 보고는 했지만 장난감을 기준으로 고른 숫자였다. 209 -> 213 fixture, exec 25/25.
56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
#ifndef FE_CHECK_H
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#define FE_CHECK_H
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#include "types.h"
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#include "diag.h"
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#include "resolve.h"
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typedef struct FeScope FeScope;
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/* One generic instance, identified by declaring unit, declaration and the
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spelling of its type arguments (SPEC 9). The table both deduplicates
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requests and bounds how long a chain of new ones can get. */
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#define FE_GENERIC_KEY_MAX 320
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#define FE_GENERIC_INSTANCE_MAX 4096
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typedef struct FeInstance {
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char key[FE_GENERIC_KEY_MAX];
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/* What lowering needs to build this instance's code: the declaration, the
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arguments bound while it was checked, the unit those names belong to,
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and the name the linker will see. */
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FeNode *decl;
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FeTypeBind binds[FE_TYPE_PARAM_MAX];
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unsigned bind_count;
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const char *home;
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const char *cname;
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FeType *owner; /* set when the instance is a method */
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} FeInstance;
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/* The checker spans a whole build, not one file. Names cross unit boundaries,
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so every unit's declarations have to exist before any unit's bodies are
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looked at, and they all have to be interned in one type context or the same
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spelling in two units would not be the same type. */
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typedef struct FeCheck {
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/* Scopes, symbols and types outlive whichever unit is current, so they
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come from the checker's own arena rather than from an AST's. */
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FeArena arena;
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FeBuild *build;
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FeAst *ast; /* the unit being checked now */
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FeUnit *unit; /* its entry in the build */
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FeScope *unit_scope[FE_BUILD_UNIT_MAX];
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FeTypeCtx types;
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FeDiags *diags;
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unsigned pointer_bits;
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unsigned local_serial;
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int no_checks;
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FeInstance *instances;
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unsigned instance_count;
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unsigned instance_depth;
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} FeCheck;
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void fe_check_init(FeCheck *c, FeBuild *build, FeDiags *diags,
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unsigned pointer_bits, int no_checks);
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void fe_check_destroy(FeCheck *c);
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int fe_check_program(FeCheck *c);
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#endif
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