зеркало из https://github.com/github/ruby.git
122 строки
3.5 KiB
C
122 строки
3.5 KiB
C
/**
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* @file static_literals.h
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*
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* A set of static literal nodes that can be checked for duplicates.
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*/
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#ifndef PRISM_STATIC_LITERALS_H
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#define PRISM_STATIC_LITERALS_H
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#include "prism/defines.h"
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#include "prism/ast.h"
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#include "prism/util/pm_newline_list.h"
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#include <assert.h>
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#include <stdbool.h>
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/**
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* An internal hash table for a set of nodes.
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*/
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typedef struct {
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/** The array of nodes in the hash table. */
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pm_node_t **nodes;
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/** The size of the hash table. */
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uint32_t size;
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/** The space that has been allocated in the hash table. */
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uint32_t capacity;
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} pm_node_hash_t;
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/**
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* Certain sets of nodes (hash keys and when clauses) check for duplicate nodes
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* to alert the user of potential issues. To do this, we keep a set of the nodes
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* that have been seen so far, and compare whenever we find a new node.
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*
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* We bucket the nodes based on their type to minimize the number of comparisons
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* that need to be performed.
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*/
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typedef struct {
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/**
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* This is the set of IntegerNode and SourceLineNode instances.
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*/
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pm_node_hash_t integer_nodes;
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/**
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* This is the set of FloatNode instances.
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*/
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pm_node_hash_t float_nodes;
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/**
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* This is the set of RationalNode and ImaginaryNode instances.
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*/
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pm_node_hash_t number_nodes;
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/**
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* This is the set of StringNode and SourceFileNode instances.
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*/
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pm_node_hash_t string_nodes;
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/**
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* This is the set of RegularExpressionNode instances.
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*/
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pm_node_hash_t regexp_nodes;
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/**
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* This is the set of SymbolNode instances.
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*/
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pm_node_hash_t symbol_nodes;
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/**
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* A pointer to the last TrueNode instance that was inserted, or NULL.
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*/
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pm_node_t *true_node;
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/**
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* A pointer to the last FalseNode instance that was inserted, or NULL.
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*/
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pm_node_t *false_node;
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/**
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* A pointer to the last NilNode instance that was inserted, or NULL.
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*/
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pm_node_t *nil_node;
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/**
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* A pointer to the last SourceEncodingNode instance that was inserted, or
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* NULL.
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*/
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pm_node_t *source_encoding_node;
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} pm_static_literals_t;
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/**
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* Add a node to the set of static literals.
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*
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* @param newline_list The list of newline offsets to use to calculate lines.
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* @param start_line The line number that the parser starts on.
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* @param literals The set of static literals to add the node to.
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* @param node The node to add to the set.
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* @param replace Whether to replace the previous node if one already exists.
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* @return A pointer to the node that is being overwritten, if there is one.
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*/
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pm_node_t * pm_static_literals_add(const pm_newline_list_t *newline_list, int32_t start_line, pm_static_literals_t *literals, pm_node_t *node, bool replace);
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/**
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* Free the internal memory associated with the given static literals set.
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*
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* @param literals The set of static literals to free.
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*/
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void pm_static_literals_free(pm_static_literals_t *literals);
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/**
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* Create a string-based representation of the given static literal.
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*
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* @param buffer The buffer to write the string to.
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* @param newline_list The list of newline offsets to use to calculate lines.
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* @param start_line The line number that the parser starts on.
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* @param encoding_name The name of the encoding of the source being parsed.
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* @param node The node to create a string representation of.
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*/
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void pm_static_literal_inspect(pm_buffer_t *buffer, const pm_newline_list_t *newline_list, int32_t start_line, const char *encoding_name, const pm_node_t *node);
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#endif
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