74c6781153
All kind of AST nodes use same struct RNode, which has u1, u2, u3 union members for holding different kind of data. This has two problems. 1. Low flexibility of data structure Some nodes, for example NODE_TRUE, don’t use u1, u2, u3. On the other hand, NODE_OP_ASGN2 needs more than three union members. However they use same structure definition, need to allocate three union members for NODE_TRUE and need to separate NODE_OP_ASGN2 into another node. This change removes the restriction so make it possible to change data structure by each node type. 2. No compile time check for union member access It’s developer’s responsibility for using correct member for each node type when it’s union. This change clarifies which node has which type of fields and enables compile time check. This commit also changes node_buffer_elem_struct buf management to handle different size data with alignment.
33 lines
600 B
C
33 lines
600 B
C
#ifndef RUBY_PARSER_NODE_H
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#define RUBY_PARSER_NODE_H 1
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/*
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* This is a header file used by only "parse.y"
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*/
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#include "rubyparser.h"
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#include "internal/compilers.h"
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#if defined(__cplusplus)
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extern "C" {
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#if 0
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} /* satisfy cc-mode */
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#endif
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#endif
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static inline rb_code_location_t
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code_loc_gen(const rb_code_location_t *loc1, const rb_code_location_t *loc2)
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{
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rb_code_location_t loc;
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loc.beg_pos = loc1->beg_pos;
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loc.end_pos = loc2->end_pos;
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return loc;
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}
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#if defined(__cplusplus)
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#if 0
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{ /* satisfy cc-mode */
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#endif
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} /* extern "C" { */
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#endif
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#endif /* RUBY_PARSER_NODE_H */
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