зеркало из https://github.com/github/ruby.git
900 строки
22 KiB
C
900 строки
22 KiB
C
/**********************************************************************
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node.c - ruby node tree
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$Author: mame $
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created at: 09/12/06 21:23:44 JST
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Copyright (C) 2009 Yusuke Endoh
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**********************************************************************/
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#include "ruby/ruby.h"
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#include "vm_core.h"
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#define A(str) rb_str_cat2(buf, (str))
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#define AR(str) rb_str_concat(buf, (str))
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#define A_INDENT add_indent(buf, indent)
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#define A_ID(id) add_id(buf, (id))
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#define A_INT(val) rb_str_catf(buf, "%d", (val));
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#define A_LONG(val) rb_str_catf(buf, "%ld", (val));
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#define A_LIT(lit) AR(rb_inspect(lit))
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#define A_NODE_HEADER(node) \
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rb_str_catf(buf, "@ %s (line: %d)", ruby_node_name(nd_type(node)), nd_line(node))
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#define A_FIELD_HEADER(name) \
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rb_str_catf(buf, "+- %s:", (name))
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#define D_NULL_NODE A_INDENT; A("(null node)"); A("\n");
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#define D_NODE_HEADER(node) A_INDENT; A_NODE_HEADER(node); A("\n");
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#define COMPOUND_FIELD(name, name2, block) \
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do { \
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A_INDENT; A_FIELD_HEADER(comment ? (name2) : (name)); A("\n"); \
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rb_str_cat2(indent, next_indent); \
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block; \
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rb_str_resize(indent, RSTRING_LEN(indent) - 4); \
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} while (0)
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#define SIMPLE_FIELD(name, name2, block) \
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do { \
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A_INDENT; A_FIELD_HEADER(comment ? (name2) : (name)); A(" "); block; A("\n"); \
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} while (0)
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#define F_CUSTOM1(name, ann, block) SIMPLE_FIELD(#name, #name " (" ann ")", block)
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#define F_ID(name, ann) SIMPLE_FIELD(#name, #name " (" ann ")", A_ID(node->name))
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#define F_GENTRY(name, ann) SIMPLE_FIELD(#name, #name " (" ann ")", A_ID((node->name)->id))
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#define F_INT(name, ann) SIMPLE_FIELD(#name, #name " (" ann ")", A_INT(node->name))
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#define F_LONG(name, ann) SIMPLE_FIELD(#name, #name " (" ann ")", A_LONG(node->name))
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#define F_LIT(name, ann) SIMPLE_FIELD(#name, #name " (" ann ")", A_LIT(node->name))
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#define F_MSG(name, ann, desc) SIMPLE_FIELD(#name, #name " (" ann ")", A(desc))
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#define F_CUSTOM2(name, ann, block) \
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COMPOUND_FIELD(#name, #name " (" ann ")", block)
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#define F_NODE(name, ann) \
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COMPOUND_FIELD(#name, #name " (" ann ")", dump_node(buf, indent, comment, node->name))
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#define ANN(ann) \
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if (comment) { \
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A_INDENT; A("| # "); A(ann); A("\n"); \
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}
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#define LAST_NODE (next_indent = " ")
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static void
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add_indent(VALUE buf, VALUE indent)
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{
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AR(indent);
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}
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static void
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add_id(VALUE buf, ID id)
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{
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if (id == 0) {
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A("(null)");
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}
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else {
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VALUE str = rb_id2str(id);
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if (str) {
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A(":"); AR(str);
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}
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else {
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A("(internal variable)");
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}
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}
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}
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static void
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dump_node(VALUE buf, VALUE indent, int comment, NODE *node)
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{
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const char *next_indent = "| ";
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if (!node) {
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D_NULL_NODE;
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return;
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}
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D_NODE_HEADER(node);
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switch (nd_type(node)) {
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case NODE_BLOCK:
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ANN("statement sequence");
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ANN("format: [nd_head]; [nd_next]");
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ANN("example: foo; bar");
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F_NODE(nd_head, "current statement");
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LAST_NODE;
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F_NODE(nd_next, "next block");
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break;
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case NODE_IF:
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ANN("if statement");
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ANN("format: if [nd_cond] then [nd_body] else [nd_else] end");
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ANN("example: if x == 1 then foo else bar end");
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F_NODE(nd_cond, "condition expr");
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F_NODE(nd_body, "then clause");
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LAST_NODE;
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F_NODE(nd_else, "else clause");
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break;
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case NODE_CASE:
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ANN("case statement");
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ANN("format: case [nd_head]; [nd_body]; end");
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ANN("example: case x; when 1; foo; when 2; bar; else baz; end");
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F_NODE(nd_head, "case expr");
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LAST_NODE;
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F_NODE(nd_body, "when clauses");
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break;
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case NODE_WHEN:
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ANN("if statement");
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ANN("format: when [nd_head]; [nd_body]; (when or else) [nd_next]");
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ANN("example: case x; when 1; foo; when 2; bar; else baz; end");
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F_NODE(nd_head, "when value");
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F_NODE(nd_body, "when clause");
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LAST_NODE;
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F_NODE(nd_next, "next when clause");
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break;
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case NODE_OPT_N:
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ANN("wrapper for -n option");
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ANN("format: ruby -ne '[nd_body]' (nd_cond is `gets')");
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ANN("example: ruby -ne 'p $_'");
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goto loop;
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case NODE_WHILE:
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ANN("while statement");
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ANN("format: while [nd_cond]; [nd_body]; end");
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ANN("example: while x == 1; foo; end");
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goto loop;
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case NODE_UNTIL:
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ANN("until statement");
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ANN("format: until [nd_cond]; [nd_body]; end");
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ANN("example: until x == 1; foo; end");
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loop:
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F_CUSTOM1(nd_state, "begin-end-while?", {
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A_INT((int)node->nd_state);
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A((node->nd_state == 1) ? " (while-end)" : " (begin-end-while)");
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});
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F_NODE(nd_cond, "condition");
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LAST_NODE;
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F_NODE(nd_body, "body");
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break;
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case NODE_ITER:
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ANN("method call with block");
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ANN("format: [nd_iter] { [nd_body] }");
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ANN("example: 3.times { foo }");
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goto iter;
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case NODE_FOR:
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ANN("for statement");
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ANN("format: for * in [nd_iter] do [nd_body] end");
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ANN("example: for i in 1..3 do foo end");
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iter:
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F_NODE(nd_iter, "iteration receiver");
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LAST_NODE;
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F_NODE(nd_body, "body");
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break;
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case NODE_BREAK:
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ANN("for statement");
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ANN("format: break [nd_stts]");
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ANN("example: break 1");
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goto jump;
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case NODE_NEXT:
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ANN("next statement");
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ANN("format: next [nd_stts]");
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ANN("example: next 1");
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goto jump;
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case NODE_RETURN:
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ANN("return statement");
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ANN("format: return [nd_stts]");
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ANN("example: return 1");
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jump:
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LAST_NODE;
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F_NODE(nd_stts, "value");
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break;
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case NODE_REDO:
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ANN("redo statement");
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ANN("format: redo");
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ANN("example: redo");
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break;
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case NODE_RETRY:
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ANN("retry statement");
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ANN("format: retry");
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ANN("example: retry");
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break;
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case NODE_BEGIN:
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ANN("begin statement");
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ANN("format: begin; [nd_body]; end");
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ANN("example: begin; 1; end");
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LAST_NODE;
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F_NODE(nd_body, "body");
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break;
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case NODE_RESCUE:
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ANN("rescue clause");
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ANN("format: begin; [nd_body]; (rescue) [nd_resq]; else [nd_else]; end");
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ANN("example: begin; foo; rescue; bar; else; baz; end");
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F_NODE(nd_head, "body");
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F_NODE(nd_resq, "rescue clause list");
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LAST_NODE;
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F_NODE(nd_else, "rescue else clause");
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break;
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case NODE_RESBODY:
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ANN("rescue clause (cont'd)");
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ANN("format: rescue [nd_args]; [nd_body]; (rescue) [nd_head]");
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ANN("example: begin; foo; rescue; bar; else; baz; end");
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F_NODE(nd_args, "rescue exceptions");
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F_NODE(nd_body, "rescue clause");
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LAST_NODE;
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F_NODE(nd_head, "next rescue clause");
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break;
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case NODE_ENSURE:
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ANN("ensure clause");
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ANN("format: begin; [nd_head]; ensure; [nd_ensr]; end");
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ANN("example: begin; foo; ensure; bar; end");
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F_NODE(nd_head, "body");
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LAST_NODE;
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F_NODE(nd_ensr, "ensure clause");
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break;
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case NODE_AND:
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ANN("&& operator");
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ANN("format: [nd_1st] && [nd_2nd]");
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ANN("example: foo && bar");
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goto andor;
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case NODE_OR:
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ANN("|| operator");
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ANN("format: [nd_1st] || [nd_2nd]");
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ANN("example: foo && bar");
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andor:
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F_NODE(nd_1st, "left expr");
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LAST_NODE;
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F_NODE(nd_2nd, "right expr");
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break;
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case NODE_MASGN:
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ANN("multiple assignment");
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ANN("format: [nd_head], [nd_args] = [nd_value]");
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ANN("example: a, b = foo");
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F_NODE(nd_value, "rhsn");
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F_NODE(nd_head, "lhsn");
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if ((VALUE)node->nd_args != (VALUE)-1) {
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LAST_NODE;
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F_NODE(nd_args, "splatn");
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}
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else {
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F_MSG(nd_args, "splatn", "-1 (rest argument without name)");
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}
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break;
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case NODE_LASGN:
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ANN("local variable assignment");
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ANN("format: [nd_vid](lvar) = [nd_value]");
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ANN("example: x = foo");
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goto asgn;
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case NODE_DASGN:
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ANN("dynamic variable assignment (out of current scope)");
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ANN("format: [nd_vid](dvar) = [nd_value]");
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ANN("example: x = nil; 1.times { x = foo }");
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goto asgn;
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case NODE_DASGN_CURR:
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ANN("dynamic variable assignment (in current scope)");
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ANN("format: [nd_vid](current dvar) = [nd_value]");
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ANN("example: 1.times { x = foo }");
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goto asgn;
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case NODE_IASGN:
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ANN("instance variable assignment");
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ANN("format: [nd_vid](ivar) = [nd_value]");
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ANN("example: @x = foo");
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goto asgn;
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case NODE_CVASGN:
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ANN("class variable assignment");
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ANN("format: [nd_vid](cvar) = [nd_value]");
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ANN("example: @@x = foo");
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asgn:
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F_ID(nd_vid, "variable");
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LAST_NODE;
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F_NODE(nd_value, "rvalue");
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break;
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case NODE_GASGN:
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ANN("global variable assignment");
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ANN("format: [nd_entry](gvar) = [nd_value]");
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ANN("example: $x = foo");
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F_GENTRY(nd_entry, "global variable");
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LAST_NODE;
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F_NODE(nd_value, "rvalue");
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break;
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case NODE_CDECL:
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ANN("constant declaration");
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ANN("format: [nd_else]::[nd_vid](constant) = [nd_value]");
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ANN("example: X = foo");
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if (node->nd_vid) {
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F_ID(nd_vid, "variable");
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F_MSG(nd_else, "extension", "not used");
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}
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else {
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F_MSG(nd_vid, "variable", "0 (see extension field)");
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F_NODE(nd_else, "extension");
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}
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LAST_NODE;
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F_NODE(nd_value, "rvalue");
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break;
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case NODE_OP_ASGN1:
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ANN("array assignment with operator");
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ANN("format: [nd_value] [ [nd_args->nd_body] ] [nd_vid]= [nd_args->nd_head]");
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ANN("example: ary[1] += foo");
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F_NODE(nd_recv, "receiver");
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F_ID(nd_vid, "operator");
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F_NODE(nd_args->nd_body, "index");
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LAST_NODE;
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F_NODE(nd_args->nd_head, "rvalue");
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break;
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case NODE_OP_ASGN2:
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ANN("attr assignment with operator");
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ANN("format: [nd_value].[attr] [nd_next->nd_mid]= [nd_value]");
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ANN(" where [attr] reader: [nd_next->nd_vid]");
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ANN(" [attr] writer: [nd_next->nd_aid]");
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ANN("example: struct.field += foo");
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F_NODE(nd_recv, "receiver");
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F_ID(nd_next->nd_vid, "reader");
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F_ID(nd_next->nd_aid, "writer");
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F_CUSTOM1(nd_next->nd_mid, "operator", {
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switch (node->nd_next->nd_mid) {
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case 0: A("0 (||)"); break;
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case 1: A("1 (&&)"); break;
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default: A_ID(node->nd_next->nd_mid);
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}
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});
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LAST_NODE;
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F_NODE(nd_value, "rvalue");
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break;
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case NODE_OP_ASGN_AND:
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ANN("assignment with && operator");
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ANN("format: [nd_head] &&= [nd_value]");
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ANN("example: foo &&= bar");
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goto asgn_andor;
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case NODE_OP_ASGN_OR:
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ANN("assignment with || operator");
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ANN("format: [nd_head] ||= [nd_value]");
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ANN("example: foo ||= bar");
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asgn_andor:
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F_NODE(nd_head, "variable");
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LAST_NODE;
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F_NODE(nd_value, "rvalue");
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break;
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case NODE_CALL:
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ANN("method invocation");
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ANN("format: [nd_recv].[nd_mid]([nd_args])");
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ANN("example: obj.foo(1)");
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F_ID(nd_mid, "method id");
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F_NODE(nd_recv, "receiver");
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LAST_NODE;
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F_NODE(nd_args, "arguments");
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break;
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case NODE_FCALL:
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ANN("function call");
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ANN("format: [nd_mid]([nd_args])");
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ANN("example: foo(1)");
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F_ID(nd_mid, "method id");
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LAST_NODE;
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F_NODE(nd_args, "arguments");
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break;
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case NODE_VCALL:
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ANN("function call with no argument");
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ANN("format: [nd_mid]");
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ANN("example: foo");
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F_ID(nd_mid, "method id");
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break;
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case NODE_SUPER:
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ANN("super invocation");
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ANN("format: super [nd_args]");
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ANN("example: super 1");
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LAST_NODE;
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F_NODE(nd_args, "arguments");
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break;
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|
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case NODE_ZSUPER:
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ANN("super invocation with no argument");
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ANN("format: super");
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ANN("example: super");
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break;
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|
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case NODE_ARRAY:
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ANN("array constructor");
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ANN("format: [ [nd_head], [nd_next].. ] (length: [nd_alen])");
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ANN("example: [1, 2, 3]");
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goto ary;
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case NODE_VALUES:
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ANN("return arguments");
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ANN("format: [ [nd_head], [nd_next].. ] (length: [nd_alen])");
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ANN("example: return 1, 2, 3");
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ary:
|
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F_LONG(nd_alen, "length");
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F_NODE(nd_head, "element");
|
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LAST_NODE;
|
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F_NODE(nd_next, "next element");
|
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break;
|
|
|
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case NODE_ZARRAY:
|
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ANN("empty array constructor");
|
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ANN("format: []");
|
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ANN("example: []");
|
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break;
|
|
|
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case NODE_HASH:
|
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ANN("hash constructor");
|
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ANN("format: { [nd_head] }");
|
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ANN("example: { 1 => 2, 3 => 4 }");
|
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LAST_NODE;
|
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F_NODE(nd_head, "contents");
|
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break;
|
|
|
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case NODE_YIELD:
|
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ANN("yield invocation");
|
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ANN("format: yield [nd_head]");
|
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ANN("example: yield 1");
|
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LAST_NODE;
|
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F_NODE(nd_head, "arguments");
|
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break;
|
|
|
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case NODE_LVAR:
|
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ANN("local variable reference");
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ANN("format: [nd_vid](lvar)");
|
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ANN("example: x");
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goto var;
|
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case NODE_DVAR:
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ANN("dynamic variable reference");
|
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ANN("format: [nd_vid](dvar)");
|
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ANN("example: 1.times { x = 1; x }");
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goto var;
|
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case NODE_IVAR:
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ANN("instance variable reference");
|
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ANN("format: [nd_vid](ivar)");
|
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ANN("example: @x");
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goto var;
|
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case NODE_CONST:
|
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ANN("constant reference");
|
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ANN("format: [nd_vid](constant)");
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ANN("example: X");
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goto var;
|
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case NODE_CVAR:
|
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ANN("class variable reference");
|
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ANN("format: [nd_vid](cvar)");
|
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ANN("example: @@x");
|
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var:
|
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F_ID(nd_vid, "local variable");
|
|
break;
|
|
|
|
case NODE_GVAR:
|
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ANN("global variable reference");
|
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ANN("format: [nd_entry](gvar)");
|
|
ANN("example: $x");
|
|
F_GENTRY(nd_entry, "global variable");
|
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break;
|
|
|
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case NODE_NTH_REF:
|
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ANN("nth special variable reference");
|
|
ANN("format: $[nd_nth]");
|
|
ANN("example: $1, $2, ..");
|
|
F_CUSTOM1(nd_nth, "variable", { A("$"); A_LONG(node->nd_nth); });
|
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break;
|
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|
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case NODE_BACK_REF:
|
|
ANN("back special variable reference");
|
|
ANN("format: $[nd_nth]");
|
|
ANN("example: $&, $`, $', $+");
|
|
F_CUSTOM1(nd_nth, "variable", {
|
|
char name[3];
|
|
name[0] = '$';
|
|
name[1] = (char)node->nd_nth;
|
|
name[2] = '\0';
|
|
A(name);
|
|
});
|
|
break;
|
|
|
|
case NODE_MATCH:
|
|
ANN("match expression (against $_ implicitly)");
|
|
ANN("format: [nd_lit] (in condition)");
|
|
ANN("example: if /foo/; foo; end");
|
|
F_LIT(nd_lit, "regexp");
|
|
break;
|
|
|
|
case NODE_MATCH2:
|
|
ANN("match expression (regexp first)");
|
|
ANN("format: [nd_recv] =~ [nd_value]");
|
|
ANN("example: /foo/ =~ 'foo'");
|
|
F_NODE(nd_recv, "regexp (receiver)");
|
|
LAST_NODE;
|
|
F_NODE(nd_value, "string (argument)");
|
|
break;
|
|
|
|
case NODE_MATCH3:
|
|
ANN("match expression (regexp second)");
|
|
ANN("format: [nd_recv] =~ [nd_value]");
|
|
ANN("example: 'foo' =~ /foo/");
|
|
F_NODE(nd_recv, "string (receiver)");
|
|
LAST_NODE;
|
|
F_NODE(nd_value, "regexp (argument)");
|
|
break;
|
|
|
|
case NODE_LIT:
|
|
ANN("literal");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: 1, /foo/");
|
|
goto lit;
|
|
case NODE_STR:
|
|
ANN("string literal");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: 'foo'");
|
|
goto lit;
|
|
case NODE_XSTR:
|
|
ANN("xstring literal");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: `foo`");
|
|
lit:
|
|
F_LIT(nd_lit, "literal");
|
|
break;
|
|
|
|
case NODE_DSTR:
|
|
ANN("string literal with interpolation");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: \"foo#{ bar }baz\"");
|
|
goto dlit;
|
|
case NODE_DXSTR:
|
|
ANN("xstring literal with interpolation");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: `foo#{ bar }baz`");
|
|
goto dlit;
|
|
case NODE_DREGX:
|
|
ANN("regexp literal with interpolation");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: /foo#{ bar }baz/");
|
|
goto dlit;
|
|
case NODE_DREGX_ONCE:
|
|
ANN("regexp literal with interpolation and once flag");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: /foo#{ bar }baz/o");
|
|
goto dlit;
|
|
case NODE_DSYM:
|
|
ANN("symbol literal with interpolation");
|
|
ANN("format: [nd_lit]");
|
|
ANN("example: :\"foo#{ bar }baz\"");
|
|
dlit:
|
|
F_LIT(nd_lit, "literal");
|
|
F_NODE(nd_next->nd_head, "preceding string");
|
|
LAST_NODE;
|
|
F_NODE(nd_next->nd_next, "interpolation");
|
|
break;
|
|
|
|
case NODE_EVSTR:
|
|
ANN("interpolation expression");
|
|
ANN("format: \"..#{ [nd_lit] }..\"");
|
|
ANN("example: \"foo#{ bar }baz\"");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "body");
|
|
break;
|
|
|
|
case NODE_ARGSCAT:
|
|
ANN("splat argument following arguments");
|
|
ANN("format: ..(*[nd_head], [nd_body..])");
|
|
ANN("example: foo(*ary, post_arg1, post_arg2)");
|
|
F_NODE(nd_head, "preceding array");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "following array");
|
|
break;
|
|
|
|
case NODE_ARGSPUSH:
|
|
ANN("splat argument following one argument");
|
|
ANN("format: ..(*[nd_head], [nd_body])");
|
|
ANN("example: foo(*ary, post_arg)");
|
|
F_NODE(nd_head, "preceding array");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "following element");
|
|
break;
|
|
|
|
case NODE_SPLAT:
|
|
ANN("splat argument");
|
|
ANN("format: *[nd_head]");
|
|
ANN("example: foo(*ary)");
|
|
LAST_NODE;
|
|
F_NODE(nd_head, "splat'ed array");
|
|
break;
|
|
|
|
case NODE_BLOCK_PASS:
|
|
ANN("arguments with block argument");
|
|
ANN("format: ..([nd_head], &[nd_body])");
|
|
ANN("example: foo(x, &blk)");
|
|
F_NODE(nd_head, "other arguments");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "block argument");
|
|
break;
|
|
|
|
case NODE_DEFN:
|
|
ANN("method definition");
|
|
ANN("format: def [nd_mid] [nd_defn]; end");
|
|
ANN("example; def foo; bar; end");
|
|
F_ID(nd_mid, "method name");
|
|
LAST_NODE;
|
|
F_NODE(nd_defn, "method definition");
|
|
break;
|
|
|
|
case NODE_DEFS:
|
|
ANN("singleton method definition");
|
|
ANN("format: def [nd_recv].[nd_mid] [nd_defn]; end");
|
|
ANN("example; def obj.foo; bar; end");
|
|
F_NODE(nd_recv, "receiver");
|
|
F_ID(nd_mid, "method name");
|
|
LAST_NODE;
|
|
F_NODE(nd_defn, "method definition");
|
|
break;
|
|
|
|
case NODE_ALIAS:
|
|
ANN("method alias statement");
|
|
ANN("format: alias [u1.node] [u2.node]");
|
|
ANN("example: alias bar foo");
|
|
F_NODE(u1.node, "new name");
|
|
LAST_NODE;
|
|
F_NODE(u2.node, "old name");
|
|
break;
|
|
|
|
case NODE_VALIAS:
|
|
ANN("global variable alias statement");
|
|
ANN("format: alias [u1.id](gvar) [u2.id](gvar)");
|
|
ANN("example: alias $y $x");
|
|
F_ID(u1.id, "new name");
|
|
F_ID(u2.id, "old name");
|
|
break;
|
|
|
|
case NODE_UNDEF:
|
|
ANN("method alias statement");
|
|
ANN("format: undef [u2.node]");
|
|
ANN("example: undef foo");
|
|
LAST_NODE;
|
|
F_NODE(u2.node, "old name");
|
|
break;
|
|
|
|
case NODE_CLASS:
|
|
ANN("class definition");
|
|
ANN("format: class [nd_cpath] < [nd_super]; [nd_body]; end");
|
|
ANN("example: class C2 < C; ..; end");
|
|
F_NODE(nd_cpath, "class path");
|
|
F_NODE(nd_super, "superclass");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "class definition");
|
|
break;
|
|
|
|
case NODE_MODULE:
|
|
ANN("module definition");
|
|
ANN("format: module [nd_cpath]; [nd_body]; end");
|
|
ANN("example: module M; ..; end");
|
|
F_NODE(nd_cpath, "module path");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "module definition");
|
|
break;
|
|
|
|
case NODE_SCLASS:
|
|
ANN("singleton class definition");
|
|
ANN("format: class << [nd_recv]; [nd_body]; end");
|
|
ANN("example: class << obj; ..; end");
|
|
F_NODE(nd_recv, "receiver");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "singleton class definition");
|
|
break;
|
|
|
|
case NODE_COLON2:
|
|
ANN("scoped constant reference");
|
|
ANN("format: [nd_head]::[nd_mid]");
|
|
ANN("example: M::C");
|
|
F_ID(nd_mid, "constant name");
|
|
LAST_NODE;
|
|
F_NODE(nd_head, "receiver");
|
|
break;
|
|
|
|
case NODE_COLON3:
|
|
ANN("top-level constant reference");
|
|
ANN("format: ::[nd_mid]");
|
|
ANN("example: ::Object");
|
|
F_ID(nd_mid, "constant name");
|
|
break;
|
|
|
|
case NODE_DOT2:
|
|
ANN("range constructor (incl.)");
|
|
ANN("format: [nd_beg]..[nd_end]");
|
|
ANN("example: 1..5");
|
|
goto dot;
|
|
case NODE_DOT3:
|
|
ANN("range constructor (excl.)");
|
|
ANN("format: [nd_beg]...[nd_end]");
|
|
ANN("example: 1...5");
|
|
goto dot;
|
|
case NODE_FLIP2:
|
|
ANN("flip-flop condition (incl.)");
|
|
ANN("format: [nd_beg]..[nd_end]");
|
|
ANN("example: if (x==1)..(x==5); foo; end");
|
|
goto dot;
|
|
case NODE_FLIP3:
|
|
ANN("flip-flop condition (excl.)");
|
|
ANN("format: [nd_beg]...[nd_end]");
|
|
ANN("example: if (x==1)...(x==5); foo; end");
|
|
dot:
|
|
F_NODE(nd_beg, "begin");
|
|
LAST_NODE;
|
|
F_NODE(nd_end, "end");
|
|
break;
|
|
|
|
case NODE_SELF:
|
|
ANN("self");
|
|
ANN("format: self");
|
|
ANN("example: self");
|
|
break;
|
|
|
|
case NODE_NIL:
|
|
ANN("nil");
|
|
ANN("format: nil");
|
|
ANN("example: nil");
|
|
break;
|
|
|
|
case NODE_TRUE:
|
|
ANN("true");
|
|
ANN("format: true");
|
|
ANN("example: true");
|
|
break;
|
|
|
|
case NODE_FALSE:
|
|
ANN("false");
|
|
ANN("format: false");
|
|
ANN("example: false");
|
|
break;
|
|
|
|
case NODE_ERRINFO:
|
|
ANN("virtual reference to $!");
|
|
ANN("format: rescue => id");
|
|
ANN("example: rescue => id");
|
|
break;
|
|
|
|
case NODE_DEFINED:
|
|
ANN("defined? expression");
|
|
ANN("format: defined?([nd_head])");
|
|
ANN("example: defined?(foo)");
|
|
F_NODE(nd_head, "expr");
|
|
break;
|
|
|
|
case NODE_POSTEXE:
|
|
ANN("post-execution");
|
|
ANN("format: END { [nd_body] }");
|
|
ANN("example: END { foo }");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "END clause");
|
|
break;
|
|
|
|
case NODE_ATTRASGN:
|
|
ANN("attr assignment");
|
|
ANN("format: [nd_recv].[nd_mid] = [nd_args]");
|
|
ANN("example: struct.field = foo");
|
|
if (node->nd_recv == (NODE *) 1) {
|
|
F_MSG(nd_recv, "receiver", "1 (self)");
|
|
}
|
|
else {
|
|
F_NODE(nd_recv, "receiver");
|
|
}
|
|
F_ID(nd_mid, "method name");
|
|
LAST_NODE;
|
|
F_NODE(nd_args, "arguments");
|
|
break;
|
|
|
|
case NODE_PRELUDE:
|
|
ANN("pre-execution");
|
|
ANN("format: BEGIN { [nd_head] }; [nd_body]");
|
|
ANN("example: bar; BEGIN { foo }");
|
|
F_NODE(nd_head, "prelude");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "body");
|
|
break;
|
|
|
|
case NODE_LAMBDA:
|
|
ANN("lambda expression");
|
|
ANN("format: -> [nd_body]");
|
|
ANN("example: -> { foo }");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "lambda clause");
|
|
break;
|
|
|
|
case NODE_OPT_ARG:
|
|
ANN("optional arguments");
|
|
ANN("format: def method_name([nd_body=some], [nd_next..])");
|
|
ANN("example: def foo(a, b=1, c); end");
|
|
F_NODE(nd_body, "body");
|
|
LAST_NODE;
|
|
F_NODE(nd_next, "next");
|
|
break;
|
|
|
|
case NODE_KW_ARG:
|
|
ANN("keyword arguments");
|
|
ANN("format: def method_name([nd_body=some], [nd_next..])");
|
|
ANN("example: def foo(a:1, b:2); end");
|
|
F_NODE(nd_body, "body");
|
|
LAST_NODE;
|
|
F_NODE(nd_next, "next");
|
|
break;
|
|
|
|
case NODE_POSTARG:
|
|
ANN("post arguments");
|
|
ANN("format: *[nd_1st], [nd_2nd..] = ..");
|
|
ANN("example: a, *rest, z = foo");
|
|
if ((VALUE)node->nd_1st != (VALUE)-1) {
|
|
F_NODE(nd_1st, "rest argument");
|
|
}
|
|
else {
|
|
F_MSG(nd_1st, "rest argument", "-1 (rest argument without name)");
|
|
}
|
|
LAST_NODE;
|
|
F_NODE(nd_2nd, "post arguments");
|
|
break;
|
|
|
|
case NODE_ARGS:
|
|
ANN("method parameters");
|
|
ANN("format: def method_name(.., [nd_opt=some], *[nd_rest], [nd_pid], .., &[nd_body])");
|
|
ANN("example: def foo(a, b, opt1=1, opt2=2, *rest, y, z, &blk); end");
|
|
F_INT(nd_ainfo->pre_args_num, "count of mandatory (pre-)arguments");
|
|
F_NODE(nd_ainfo->pre_init, "initialization of (pre-)arguments");
|
|
F_INT(nd_ainfo->post_args_num, "count of mandatory post-arguments");
|
|
F_NODE(nd_ainfo->post_init, "initialization of post-arguments");
|
|
F_ID(nd_ainfo->first_post_arg, "first post argument");
|
|
F_ID(nd_ainfo->rest_arg, "rest argument");
|
|
F_ID(nd_ainfo->block_arg, "block argument");
|
|
F_NODE(nd_ainfo->opt_args, "optional arguments");
|
|
LAST_NODE;
|
|
F_NODE(nd_ainfo->kw_args, "keyword arguments");
|
|
F_NODE(nd_ainfo->kw_rest_arg, "keyword rest argument");
|
|
break;
|
|
|
|
case NODE_SCOPE:
|
|
ANN("new scope");
|
|
ANN("format: [nd_tbl]: local table, [nd_args]: arguments, [nd_body]: body");
|
|
F_CUSTOM1(nd_tbl, "local table", {
|
|
ID *tbl = node->nd_tbl;
|
|
int i;
|
|
int size = tbl ? (int)*tbl++ : 0;
|
|
if (size == 0) A("(empty)");
|
|
for (i = 0; i < size; i++) {
|
|
A_ID(tbl[i]); if (i < size - 1) A(",");
|
|
}
|
|
});
|
|
F_NODE(nd_args, "arguments");
|
|
LAST_NODE;
|
|
F_NODE(nd_body, "body");
|
|
break;
|
|
|
|
default:
|
|
rb_bug("dump_node: unknown node: %s", ruby_node_name(nd_type(node)));
|
|
}
|
|
}
|
|
|
|
VALUE
|
|
rb_parser_dump_tree(NODE *node, int comment)
|
|
{
|
|
VALUE buf = rb_str_new_cstr(
|
|
"###########################################################\n"
|
|
"## Do NOT use this node dump for any purpose other than ##\n"
|
|
"## debug and research. Compatibility is not guaranteed. ##\n"
|
|
"###########################################################\n\n"
|
|
);
|
|
dump_node(buf, rb_str_new_cstr("# "), comment, node);
|
|
return buf;
|
|
}
|