84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/**
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* Holds the AST model
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*/
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#ifndef AST_H
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#define AST_H
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#include "bool.h"
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#include "token.h"
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#include <stddef.h>
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typedef struct {
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/** @brief The name of the module being imported. */
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Token module_name;
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/** @brief Whether the import is public or not. */
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bool is_public;
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} ImportDeclaration;
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typedef enum {
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TYPE_EXPRESSION_BUILTIN,
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TYPE_EXPRESSION_ARRAY
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} TypeExpressionTag;
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/**
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* An expression that evaluates to a type.
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*/
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typedef struct TypeExpression TypeExpression;
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struct TypeExpression{
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/** @brief defines which entry in the union is valid */
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TypeExpressionTag tag;
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union {
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/** @brief Evaluates to an array of the given type. */
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struct {
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/** @brief A pointer to the type of the elements stored in the array. */
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TypeExpression* array;
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} array;
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/** @brief Evaluates to a builtin integer type.*/
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struct {
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/**
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* @brief The number of bits in the integer.
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* Typical values are 8, 16, 32, and 64.
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*/
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int bitSize;
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/** @brief `true` if the type is signed, `false` if it's unsigned. */
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bool isSigned;
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} builtin;
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};
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};
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/**
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* A declaration that aliases one type to another.
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*/
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typedef struct {
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/** @brief The name of the alias. */
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Token name;
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/** @brief The value of the alias. */
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TypeExpression value;
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} AliasDeclaration;
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/**
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* The top-level model.
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* Every file matches an entire Module.
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*/
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typedef struct {
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/** @brief The name of the module. */
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Token name;
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/** @brief The list of imports in the module. */
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ImportDeclaration* imports;
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/** @brief The number of imports in the module. */
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size_t import_count;
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/** @brief The list of aliases in the module. */
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AliasDeclaration* aliases;
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/** @brief The number of aliases in the module. */
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size_t alias_count;
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} Module;
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#endif
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