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Move some general code generation helpers into their own file

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This commit is contained in:
Max Brunsfeld 2014-02-26 19:08:07 -08:00
parent 63718d5bad
commit 7251456cd2
4 changed files with 69 additions and 38 deletions
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40
src/compiler/generate_code/c_code.cpp
View file

@ -2,7 +2,8 @@
#include <vector>
#include <map>
#include <set>
#include "built_in_symbols.h"
#include "rules/built_in_symbols.h"
#include "./helpers.h"
namespace tree_sitter {
using std::string;
@ -13,38 +14,6 @@ namespace tree_sitter {
using std::pair;
namespace generate_code {
static void str_replace(string &input, const string &search, const string &replace) {
size_t pos = 0;
while (1) {
pos = input.find(search, pos);
if (pos == string::npos) break;
input.erase(pos, search.length());
input.insert(pos, replace);
pos += replace.length();
}
}
string join(vector<string> lines, string separator) {
string result;
bool started = false;
for (auto line : lines) {
if (started) result += separator;
started = true;
result += line;
}
return result;
}
string join(vector<string> lines) {
return join(lines, "\n");
}
string indent(string input) {
string tab = " ";
str_replace(input, "\n", "\n" + tab);
return tab + input;
}
string _switch(string condition, string body) {
return join({
"switch (" + condition + ") {",
@ -165,11 +134,6 @@ namespace tree_sitter {
}
}
string escape_string(string input) {
str_replace(input, "\"", "\\\"");
return input;
}
string parse_error_call(const set<rules::Symbol> &expected_inputs) {
string result = "PARSE_ERROR(" + to_string(expected_inputs.size()) + ", EXPECT({";
bool started = false;

42
src/compiler/generate_code/helpers.cpp Normal file
View file

@ -0,0 +1,42 @@
#include "./helpers.h"
namespace tree_sitter {
namespace generate_code {
static void str_replace(string &input, const string &search, const string &replace) {
size_t pos = 0;
while (1) {
pos = input.find(search, pos);
if (pos == string::npos) break;
input.erase(pos, search.length());
input.insert(pos, replace);
pos += replace.length();
}
}
string join(vector<string> lines, string separator) {
string result;
bool started = false;
for (auto line : lines) {
if (started) result += separator;
started = true;
result += line;
}
return result;
}
string join(vector<string> lines) {
return join(lines, "\n");
}
string indent(string input) {
string tab = " ";
str_replace(input, "\n", "\n" + tab);
return tab + input;
}
string escape_string(string input) {
str_replace(input, "\"", "\\\"");
return input;
}
}
}

19
src/compiler/generate_code/helpers.h Normal file
View file

@ -0,0 +1,19 @@
#ifndef __tree_sitter__helpers__
#define __tree_sitter__helpers__
#include <string>
#include <vector>
namespace tree_sitter {
using std::string;
using std::vector;
namespace generate_code {
string indent(string input);
string join(vector<string> lines, string separator);
string join(vector<string> lines);
string escape_string(string input);
}
}
#endif

6
tree_sitter.xcodeproj/project.pbxproj
View file

@ -16,6 +16,7 @@
1214930E181E200B008E9BDA /* main.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 121492E9181E200B008E9BDA /* main.cpp */; };
122587AF18BDD28B00A68B84 /* built_in_symbols.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 122587AD18BDD28B00A68B84 /* built_in_symbols.cpp */; };
122587B118BDD79600A68B84 /* follow_sets_spec.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 122587B018BDD79600A68B84 /* follow_sets_spec.cpp */; };
122587B418BEE2C600A68B84 /* helpers.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 122587B218BEE2C600A68B84 /* helpers.cpp */; };
1225CC6418765693000D4723 /* prepare_grammar_spec.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1225CC6318765693000D4723 /* prepare_grammar_spec.cpp */; };
1236A7C518B287DC00593ABB /* character_range.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1236A7C318B287DC00593ABB /* character_range.cpp */; };
1236A7D218B554C800593ABB /* prepared_grammar.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 1236A7D018B554C800593ABB /* prepared_grammar.cpp */; };
@ -100,6 +101,8 @@
122587AD18BDD28B00A68B84 /* built_in_symbols.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = built_in_symbols.cpp; sourceTree = "<group>"; };
122587AE18BDD28B00A68B84 /* built_in_symbols.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = built_in_symbols.h; sourceTree = "<group>"; };
122587B018BDD79600A68B84 /* follow_sets_spec.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = follow_sets_spec.cpp; sourceTree = "<group>"; };
122587B218BEE2C600A68B84 /* helpers.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = helpers.cpp; sourceTree = "<group>"; };
122587B318BEE2C600A68B84 /* helpers.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = helpers.h; sourceTree = "<group>"; };
1225CC6318765693000D4723 /* prepare_grammar_spec.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = prepare_grammar_spec.cpp; sourceTree = "<group>"; };
1236A7C318B287DC00593ABB /* character_range.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; lineEnding = 0; path = character_range.cpp; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.cpp; };
1236A7C918B2A79F00593ABB /* rule.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = rule.h; sourceTree = "<group>"; };
@ -374,6 +377,8 @@
children = (
12FD405F185E68470041A84E /* c_code.cpp */,
12FD4060185E68470041A84E /* c_code.h */,
122587B218BEE2C600A68B84 /* helpers.cpp */,
122587B318BEE2C600A68B84 /* helpers.h */,
);
path = generate_code;
sourceTree = "<group>";
@ -535,6 +540,7 @@
12FD4061185E68470041A84E /* c_code.cpp in Sources */,
12FD40D8185FEEDF0041A84E /* rules_spec.cpp in Sources */,
12EDCFC318820A70005A7A07 /* item_set_transitions.cpp in Sources */,
122587B418BEE2C600A68B84 /* helpers.cpp in Sources */,
12FD4064185E75290041A84E /* compile_examples.cpp in Sources */,
12EDCFAF18820387005A7A07 /* parse_table.cpp in Sources */,
122587AF18BDD28B00A68B84 /* built_in_symbols.cpp in Sources */,