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29 /* Note: I will not be using a _t suffix for the
30 * "main" ast node types for now.
33 typedef union ast_node_u ast_node;
34 typedef union ast_expression_u ast_expression;
36 typedef struct ast_value_s ast_value;
37 typedef struct ast_function_s ast_function;
38 typedef struct ast_block_s ast_block;
39 typedef struct ast_binary_s ast_binary;
41 /* Node interface with common components
43 typedef void ast_node_delete(ast_node*);
47 /* I don't feel comfortable using keywords like 'delete' as names... */
48 ast_node_delete *destroy;
51 #define ast_delete(x) ( ( (ast_node*)(x) ) -> node.destroy )((ast_node*)(x))
53 /* Expression interface
55 * Any expression or block returns an ir_value, and needs
56 * to know the current function.
58 typedef bool ast_expression_codegen(ast_expression*,
64 ast_expression_codegen *codegen;
65 } ast_expression_common;
69 * Types are also values, both have a type and a name.
70 * especially considering possible constructs like typedefs.
72 * is like creating a 'float foo', foo serving as the type's name.
76 ast_expression_common expression;
95 /* if vtype is qc_function, params contain parameters, and
96 * 'next' the return type.
98 MEM_VECTOR_MAKE(ast_value*, params);
100 ast_value* ast_value_new(lex_ctx_t ctx, const char *name, int qctype);
101 void ast_value_delete(ast_value*);
103 void ast_value_set_name(ast_value*, const char *name);
105 bool ast_value_codegen(ast_value*, ast_function*, ir_value**);
109 * A value-returning binary expression.
113 ast_expression_common expression;
119 ast_binary* ast_binary_new(lex_ctx_t ctx,
123 void ast_binary_delete(ast_binary*);
125 /* hmm, seperate functions?
126 bool ast_block_codegen(ast_block*, ast_function*, ir_value**);
128 /* maybe for this one */
129 bool ast_bin_store_codegen(ast_binary*, ast_function*, ir_value**);
131 bool ast_binary_codegen(ast_binary*, ast_function*, ir_value**);
138 ast_expression_common expression;
140 MEM_VECTOR_MAKE(ast_value*, locals);
141 MEM_VECTOR_MAKE(ast_expression*, exprs);
143 ast_block* ast_block_new(lex_ctx_t ctx);
144 void ast_block_delete(ast_block*);
146 MEM_VECTOR_PROTO(ast_block, ast_value*, locals);
147 MEM_VECTOR_PROTO(ast_block, ast_expression*, exprs);
149 bool ast_block_codegen(ast_block*, ast_function*, ir_value**);
153 * Contains a list of blocks... at least in theory.
154 * Usually there's just the main block, other blocks are inside that.
156 * Technically, functions don't need to be an AST node, since we have
157 * neither functions inside functions, nor lambdas, and function
158 * pointers could just work with a name. However, this way could be
159 * more flexible, and adds no real complexity.
161 struct ast_function_s
163 ast_node_common node;
168 MEM_VECTOR_MAKE(ast_block*, blocks);
170 ast_function* ast_function_new(lex_ctx_t ctx, const char *name, ast_value *vtype);
171 void ast_function_delete(ast_function*);
173 MEM_VECTOR_PROTO(ast_function, ast_block*, blocks);
175 bool ast_function_codegen(ast_function *self, ir_builder *builder);
179 union ast_expression_u
181 ast_expression_common expression;
191 ast_node_common node;
192 ast_expression expression;