Implement synchronous lstat: node.js binding demo.

[cycript.git] / Output.cpp

diff --git a/Output.cpp b/Output.cpp
index cbd853f836f00b6a1521c638010c3c0310e65242..e7b1b2ca8fdc76d7d46317d0ce18544cf35b71ce 100644 (file)
--- a/Output.cpp
+++ b/Output.cpp
@@ -19,12 +19,99 @@
 **/
 /* }}} */
 
-#include "cycript.hpp"
-
+#include <cmath>
+#include <iomanip>
 #include <sstream>
 
 #include "Syntax.hpp"
 
+void CYStringify(std::ostringstream &str, const char *data, size_t size, bool c) {
+    bool single;
+    if (c)
+        single = false;
+    else {
+        unsigned quot(0), apos(0);
+        for (const char *value(data), *end(data + size); value != end; ++value)
+            if (*value == '"')
+                ++quot;
+            else if (*value == '\'')
+                ++apos;
+
+        single = quot > apos;
+    }
+
+    str << (single ? '\'' : '"');
+
+    for (const char *value(data), *end(data + size); value != end; ++value)
+        switch (uint8_t next = *value) {
+            case '\\': str << "\\\\"; break;
+            case '\b': str << "\\b"; break;
+            case '\f': str << "\\f"; break;
+            case '\n': str << "\\n"; break;
+            case '\r': str << "\\r"; break;
+            case '\t': str << "\\t"; break;
+            case '\v': str << "\\v"; break;
+
+            case '"':
+                if (!single)
+                    str << "\\\"";
+                else goto simple;
+            break;
+
+            case '\'':
+                if (single)
+                    str << "\\'";
+                else goto simple;
+            break;
+
+            case '\0':
+                if (value[1] >= '0' && value[1] <= '9')
+                    str << "\\x00";
+                else
+                    str << "\\0";
+            break;
+
+            default:
+                if (next >= 0x20 && next < 0x7f) simple:
+                    str << *value;
+                else {
+                    unsigned levels(1);
+                    if ((next & 0x80) != 0)
+                        while ((next & 0x80 >> ++levels) != 0);
+
+                    unsigned point(next & 0xff >> levels);
+                    while (--levels != 0)
+                        point = point << 6 | uint8_t(*++value) & 0x3f;
+
+                    if (point < 0x100)
+                        str << "\\x" << std::setbase(16) << std::setw(2) << std::setfill('0') << point;
+                    else if (point < 0x10000)
+                        str << "\\u" << std::setbase(16) << std::setw(4) << std::setfill('0') << point;
+                    else {
+                        point -= 0x10000;
+                        str << "\\u" << std::setbase(16) << std::setw(4) << std::setfill('0') << (0xd800 | point >> 0x0a);
+                        str << "\\u" << std::setbase(16) << std::setw(4) << std::setfill('0') << (0xdc00 | point & 0x3ff);
+                    }
+                }
+        }
+
+    str << (single ? '\'' : '"');
+}
+
+void CYNumerify(std::ostringstream &str, double value) {
+    if (std::isinf(value)) {
+        if (value < 0)
+            str << '-';
+        str << "Infinity";
+        return;
+    }
+
+    char string[32];
+    // XXX: I want this to print 1e3 rather than 1000
+    sprintf(string, "%.17g", value);
+    str << string;
+}
+
 void CYOutput::Terminate() {
     operator ()(';');
     mode_ = NoMode;
@@ -364,7 +451,8 @@ void CYExpression::Output(CYOutput &out, int precedence, CYFlags flags) const {
 }
 
 void CYExternal::Output(CYOutput &out, CYFlags flags) const {
-    out << "extern" << abi_ << typed_ << ';';
+    out << "extern" << abi_ << typed_;
+    out.Terminate();
 }
 
 void CYFatArrow::Output(CYOutput &out, CYFlags flags) const {
@@ -519,6 +607,10 @@ void CYImport::Output(CYOutput &out, CYFlags flags) const {
     out << "@import";
 }
 
+void CYImportDeclaration::Output(CYOutput &out, CYFlags flags) const {
+    _assert(false);
+}
+
 void CYIndirect::Output(CYOutput &out, CYFlags flags) const {
     out << "*";
     rhs_->Output(out, Precedence(), CYRight(flags));
@@ -638,6 +730,7 @@ void CYLambda::Output(CYOutput &out, CYFlags flags) const {
 
 void CYTypeDefinition::Output(CYOutput &out, CYFlags flags) const {
     out << "typedef" << ' ' << *typed_;
+    out.Terminate();
 }
 
 void CYTypeExpression::Output(CYOutput &out, CYFlags flags) const {
@@ -858,6 +951,22 @@ const char *CYString::Word() const {
     return value;
 }
 
+void CYStructDefinition::Output(CYOutput &out, CYFlags flags) const {
+    out << "struct" << ' ' << *name_ << *tail_;
+}
+
+void CYStructTail::Output(CYOutput &out) const {
+    out << ' ' << '{' << '\n';
+    ++out.indent_;
+    CYForEach (field, fields_) {
+        out << '\t' << *field->typed_;
+        out.Terminate();
+        out << '\n';
+    }
+    --out.indent_;
+    out << '}';
+}
+
 void CYSuperAccess::Output(CYOutput &out, CYFlags flags) const {
     out << "super";
     if (const char *word = property_->Word())
@@ -920,10 +1029,22 @@ void CYTypeSigned::Output(CYOutput &out) const {
     out << "signed" << specifier_;
 }
 
+void CYTypeStruct::Output(CYOutput &out) const {
+    out << "struct";
+    if (name_ != NULL)
+        out << ' ' << *name_;
+    else
+        out << *tail_;
+}
+
 void CYTypeUnsigned::Output(CYOutput &out) const {
     out << "unsigned" << specifier_;
 }
 
+void CYTypeReference::Output(CYOutput &out) const {
+    out << "struct" << ' ' << *name_;
+}
+
 void CYTypeVariable::Output(CYOutput &out) const {
     out << *name_;
 }