77 lines
1.2 KiB
C
77 lines
1.2 KiB
C
#ifndef STMT_H
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#define STMT_H
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#include "ast.h"
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#include "lexer.h"
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#define DEFAULT_STMTS_SIZE 512
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/*
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statement → exprStmt | ifStmt | printStmt | block ;
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ifStmt → "if" "(" expression ")" statement
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( "else" statement )? ;
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block → "{" declaration* "}" ;
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*/
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typedef enum {
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STMT_BLOCK,
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STMT_CLASS,
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STMT_EXPR,
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STMT_FUN,
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STMT_IF,
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STMT_PRINT,
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STMT_VAR,
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STMT_WHILE,
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} stmt_type_t;
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typedef struct stmt_t stmt_t;
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typedef struct {
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stmt_t **statements;
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int length;
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int capacity;
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} stmt_array_t;
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struct stmt_t {
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stmt_type_t type;
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union {
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struct {
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stmt_array_t *statements;
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} block;
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struct {
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token_t name;
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token_t superclass;
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struct stmt_t **methods;
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} class;
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struct {
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expr_t *expression;
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} expr;
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struct {
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token_t name;
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array_t *params;
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struct stmt_t **body;
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} function;
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struct {
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expr_t *condition;
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struct stmt_t *then_branch;
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struct stmt_t *else_branch;
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} _if;
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struct {
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expr_t *expression;
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} print;
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struct {
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token_t keyword;
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expr_t *value;
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} _return;
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struct {
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token_t name;
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expr_t *initializer;
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} variable;
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struct {
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expr_t *condition;
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struct stmt_t *body;
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} _while;
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} as;
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};
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#endif
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