40 lines
992 B
C
40 lines
992 B
C
#ifndef ACC_VTYPE_H
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#define ACC_VTYPE_H
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#include <stdbool.h>
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// Defination of first-class types.
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enum {
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VT_VOID, // void
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VT_BOOL, // bool
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VT_I32, // signed 32 bits integer
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VT_I64, // signed 64 bits integer
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// Guard
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VT_EXCEED
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};
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// Value type in C.
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struct VType {
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int bt; // base type.
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};
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// Find out the type after appling the give ast operator(unary arithmetic variant).
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// Writes into parameter _res_
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void VType_unary(const struct VType *self, int op, struct VType *res, int line);
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// Initialize a VType.
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void VType_init(struct VType *self);
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// Returns the number of bits in a int type.
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// Returns 0 if the given value type is not a variant of int type.
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int VType_int_size(const struct VType *self);
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// Returns whether the first given value type can be extended to be equal second.
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bool VType_ext_eq(const struct VType *x, const struct VType *y);
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// Returns whether the given value types are the same.
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bool VType_eq(const struct VType *x, const struct VType *y);
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#endif
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