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c384ef0799
This is a tradeoff that I think is worth it. Right now we have a
location list that tracks the location of each of the block locals.
Instead, I'd like to make that a node list that has a proper node
in each spot in the list. In doing so, we eliminate the need to have
a location list at all, making it simpler on all of the various
consumers as we have one fewer field type. There should be minimal
memory implications here since this syntax is exceedingly rare.
04d329ddf0
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef YARP_NODE_H
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#define YARP_NODE_H
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#include "yarp/defines.h"
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#include "yarp/parser.h"
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// Append a new node onto the end of the node list.
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void yp_node_list_append(yp_node_list_t *list, yp_node_t *node);
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// Clear the node but preserves the location.
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void yp_node_clear(yp_node_t *node);
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// Deallocate a node and all of its children.
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YP_EXPORTED_FUNCTION void yp_node_destroy(yp_parser_t *parser, struct yp_node *node);
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// This struct stores the information gathered by the yp_node_memsize function.
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// It contains both the memory footprint and additionally metadata about the
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// shape of the tree.
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typedef struct {
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size_t memsize;
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size_t node_count;
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} yp_memsize_t;
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// Calculates the memory footprint of a given node.
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YP_EXPORTED_FUNCTION void yp_node_memsize(yp_node_t *node, yp_memsize_t *memsize);
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// Returns a string representation of the given node type.
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YP_EXPORTED_FUNCTION const char * yp_node_type_to_str(yp_node_type_t node_type);
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#define YP_EMPTY_NODE_LIST ((yp_node_list_t) { .nodes = NULL, .size = 0, .capacity = 0 })
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#endif // YARP_NODE_H
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// ScopeNodes are helper nodes, and will never
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// be part of the AST. We manually declare them
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// here to avoid generating them
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typedef struct yp_scope_node {
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yp_node_t base;
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struct yp_parameters_node *parameters;
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yp_node_t *body;
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yp_constant_id_list_t locals;
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} yp_scope_node_t;
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