X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/23111dca236b4e9ef5351abb990b1e489edf9e05..1e8d80477a3e058a30c477955f1e0c56deb6e956:/Output.cpp

diff --git a/Output.cpp b/Output.cpp
index 22e2149..50cc836 100644
--- a/Output.cpp
+++ b/Output.cpp
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
@@ -19,12 +19,175 @@
 **/
 /* }}} */
 
-#include "cycript.hpp"
-
+#include <cmath>
+#include <iomanip>
 #include <sstream>
 
 #include "Syntax.hpp"
 
+enum CYStringType {
+    CYStringTypeSingle,
+    CYStringTypeDouble,
+    CYStringTypeTemplate,
+};
+
+void CYStringify(std::ostringstream &str, const char *data, size_t size, CYStringifyMode mode) {
+    if (size == 0) {
+        str << "\"\"";
+        return;
+    }
+
+    unsigned quot(0), apos(0), tick(0), line(0);
+    for (const char *value(data), *end(data + size); value != end; ++value)
+        switch (*value) {
+            case '"': ++quot; break;
+            case '\'': ++apos; break;
+            case '`': ++tick; break;
+            case '$': ++tick; break;
+            case '\n': ++line; break;
+        }
+
+    bool split;
+    if (mode != CYStringifyModeCycript)
+        split = false;
+    else {
+        double ratio(double(line) / size);
+        split = size > 10 && line > 2 && ratio > 0.005 && ratio < 0.10;
+    }
+
+    CYStringType type;
+    if (mode == CYStringifyModeNative)
+        type = CYStringTypeDouble;
+    else if (split)
+        type = CYStringTypeTemplate;
+    else if (quot > apos)
+        type = CYStringTypeSingle;
+    else
+        type = CYStringTypeDouble;
+
+    bool parens(split && mode != CYStringifyModeNative && type != CYStringTypeTemplate);
+    if (parens)
+        str << '(';
+
+    char border;
+    switch (type) {
+        case CYStringTypeSingle: border = '\''; break;
+        case CYStringTypeDouble: border = '"'; break;
+        case CYStringTypeTemplate: border = '`'; break;
+    }
+
+    str << border;
+
+    bool space(false);
+
+    for (const char *value(data), *end(data + size); value != end; ++value)
+        if (*value == ' ') {
+            space = true;
+            str << ' ';
+        } else { switch (uint8_t next = *value) {
+            case '\\': str << "\\\\"; break;
+            case '\b': str << "\\b"; break;
+            case '\f': str << "\\f"; break;
+            case '\r': str << "\\r"; break;
+            case '\t': str << "\\t"; break;
+            case '\v': str << "\\v"; break;
+
+            case '\a':
+                if (mode == CYStringifyModeNative)
+                    str << "\\a";
+                else goto simple;
+            break;
+
+            case '\n':
+                if (!split)
+                    str << "\\n";
+                /*else if (mode == CYStringifyModeNative)
+                    str << border << "\\\n" << border;*/
+                else if (type != CYStringTypeTemplate)
+                    str << border << '+' << border;
+                else if (!space)
+                    str << '\n';
+                else
+                    str << "\\n\\\n";
+            break;
+
+            case '$':
+                if (type == CYStringTypeTemplate)
+                    str << "\\$";
+                else goto simple;
+            break;
+
+            case '`':
+                if (type == CYStringTypeTemplate)
+                    str << "\\`";
+                else goto simple;
+            break;
+
+            case '"':
+                if (type == CYStringTypeDouble)
+                    str << "\\\"";
+                else goto simple;
+            break;
+
+            case '\'':
+                if (type == CYStringTypeSingle)
+                    str << "\\'";
+                else goto simple;
+            break;
+
+            case '\0':
+                if (mode != CYStringifyModeNative && value[1] >= '0' && value[1] <= '9')
+                    str << "\\x00";
+                else
+                    str << "\\0";
+            break;
+
+            default:
+                if (next >= 0x20 && next < 0x7f) simple:
+                    str << *value;
+                else if (mode == CYStringifyModeNative)
+                    str << "\\x" << std::setbase(16) << std::setw(2) << std::setfill('0') << unsigned(*value & 0xff);
+                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);
+                    }
+                }
+        } space = false; }
+
+    str << border;
+
+    if (parens)
+        str << ')';
+}
+
+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;
@@ -239,7 +402,7 @@ void CYCondition::Output(CYOutput &out, CYFlags flags) const {
     test_->Output(out, Precedence() - 1, CYLeft(flags));
     out << ' ' << '?' << ' ';
     if (true_ != NULL)
-        true_->Output(out, CYAssign::Precedence_, CYNoFlags);
+        true_->Output(out, CYAssign::Precedence_, CYNoColon);
     out << ' ' << ':' << ' ';
     false_->Output(out, CYAssign::Precedence_, CYRight(flags));
 }
@@ -253,10 +416,12 @@ void CYContinue::Output(CYOutput &out, CYFlags flags) const {
 
 void CYClause::Output(CYOutput &out) const {
     out << '\t';
-    if (case_ != NULL)
-        out << "case" << ' ' << *case_;
-    else
+    if (value_ == NULL)
         out << "default";
+    else {
+        out << "case" << ' ';
+        value_->Output(out, CYNoColon);
+    }
     out << ':' << '\n';
     ++out.indent_;
     out << code_;
@@ -268,35 +433,35 @@ void CYDebugger::Output(CYOutput &out, CYFlags flags) const {
     out << "debugger" << ';';
 }
 
-void CYDeclaration::Output(CYOutput &out, CYFlags flags) const {
+void CYBinding::Output(CYOutput &out, CYFlags flags) const {
     out << *identifier_;
     //out.out_ << ':' << identifier_->usage_ << '#' << identifier_->offset_;
-    if (initialiser_ != NULL) {
+    if (initializer_ != NULL) {
         out << ' ' << '=' << ' ';
-        initialiser_->Output(out, CYAssign::Precedence_, CYRight(flags));
+        initializer_->Output(out, CYAssign::Precedence_, CYRight(flags));
     }
 }
 
-void CYDeclarations::Output(CYOutput &out) const {
+void CYBindings::Output(CYOutput &out) const {
     Output(out, CYNoFlags);
 }
 
-void CYDeclarations::Output(CYOutput &out, CYFlags flags) const {
-    const CYDeclarations *declaration(this);
+void CYBindings::Output(CYOutput &out, CYFlags flags) const {
+    const CYBindings *binding(this);
     bool first(true);
 
     for (;;) {
-        CYDeclarations *next(declaration->next_);
+        CYBindings *next(binding->next_);
 
         CYFlags jacks(first ? CYLeft(flags) : next == NULL ? CYRight(flags) : CYCenter(flags));
         first = false;
-        declaration->declaration_->Output(out, jacks);
+        binding->binding_->Output(out, jacks);
 
         if (next == NULL)
             break;
 
         out << ',' << ' ';
-        declaration = next;
+        binding = next;
     }
 }
 
@@ -363,8 +528,21 @@ void CYExpression::Output(CYOutput &out, int precedence, CYFlags flags) const {
         Output(out, flags);
 }
 
-void CYExternal::Output(CYOutput &out, CYFlags flags) const {
-    out << "extern" << abi_ << typed_ << ';';
+void CYExtend::Output(CYOutput &out, CYFlags flags) const {
+    lhs_->Output(out, CYLeft(flags));
+    out << ' ' << object_;
+}
+
+void CYExternalDefinition::Output(CYOutput &out, CYFlags flags) const {
+    out << "extern" << ' ' << abi_ << ' ';
+    type_->Output(out, name_);
+    out.Terminate();
+}
+
+void CYExternalExpression::Output(CYOutput &out, CYFlags flags) const {
+    out << '(' << "extern" << ' ' << abi_ << ' ';
+    type_->Output(out, name_);
+    out << ')';
 }
 
 void CYFatArrow::Output(CYOutput &out, CYFlags flags) const {
@@ -382,8 +560,8 @@ void CYFinally::Output(CYOutput &out) const {
 
 void CYFor::Output(CYOutput &out, CYFlags flags) const {
     out << "for" << ' ' << '(';
-    if (initialiser_ != NULL)
-        initialiser_->Output(out, CYNoIn);
+    if (initializer_ != NULL)
+        initializer_->Output(out, CYNoIn);
     out.Terminate();
     if (test_ != NULL)
         out << ' ';
@@ -398,45 +576,45 @@ void CYFor::Output(CYOutput &out, CYFlags flags) const {
 
 void CYForLexical::Output(CYOutput &out, CYFlags flags) const {
     out << (constant_ ? "const" : "let") << ' ';
-    declaration_->Output(out, CYRight(flags));
+    binding_->Output(out, CYRight(flags));
 }
 
 void CYForIn::Output(CYOutput &out, CYFlags flags) const {
     out << "for" << ' ' << '(';
-    initialiser_->Output(out, CYNoIn | CYNoRightHand);
-    out << ' ' << "in" << ' ' << *set_ << ')';
+    initializer_->Output(out, CYNoIn | CYNoRightHand);
+    out << ' ' << "in" << ' ' << *iterable_ << ')';
     code_->Single(out, CYRight(flags), CYCompactShort);
 }
 
 void CYForInitialized::Output(CYOutput &out, CYFlags flags) const {
     out << "for" << ' ' << '(' << "var" << ' ';
-    declaration_->Output(out, CYNoIn | CYNoRightHand);
-    out << ' ' << "in" << ' ' << *set_ << ')';
+    binding_->Output(out, CYNoIn | CYNoRightHand);
+    out << ' ' << "in" << ' ' << *iterable_ << ')';
     code_->Single(out, CYRight(flags), CYCompactShort);
 }
 
 void CYForInComprehension::Output(CYOutput &out) const {
     out << "for" << ' ' << '(';
-    declaration_->Output(out, CYNoIn | CYNoRightHand);
-    out << ' ' << "in" << ' ' << *set_ << ')';
+    binding_->Output(out, CYNoIn | CYNoRightHand);
+    out << ' ' << "in" << ' ' << *iterable_ << ')';
 }
 
 void CYForOf::Output(CYOutput &out, CYFlags flags) const {
     out << "for" << ' ' << '(';
-    initialiser_->Output(out, CYNoRightHand);
-    out << ' ' << "of" << ' ' << *set_ << ')';
+    initializer_->Output(out, CYNoRightHand);
+    out << ' ' << "of" << ' ' << *iterable_ << ')';
     code_->Single(out, CYRight(flags), CYCompactShort);
 }
 
 void CYForOfComprehension::Output(CYOutput &out) const {
     out << "for" << ' ' << '(';
-    declaration_->Output(out, CYNoRightHand);
-    out << ' ' << "of" << ' ' << *set_ << ')' << next_;
+    binding_->Output(out, CYNoRightHand);
+    out << ' ' << "of" << ' ' << *iterable_ << ')' << next_;
 }
 
 void CYForVariable::Output(CYOutput &out, CYFlags flags) const {
     out << "var" << ' ';
-    declaration_->Output(out, CYRight(flags));
+    binding_->Output(out, CYRight(flags));
 }
 
 void CYFunction::Output(CYOutput &out) const {
@@ -467,7 +645,7 @@ void CYFunctionStatement::Output(CYOutput &out, CYFlags flags) const {
 }
 
 void CYFunctionParameter::Output(CYOutput &out) const {
-    initialiser_->Output(out, CYNoFlags);
+    binding_->Output(out, CYNoFlags);
     if (next_ != NULL)
         out << ',' << ' ' << *next_;
 }
@@ -519,6 +697,10 @@ 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));
@@ -565,42 +747,53 @@ void CYTemplate::Output(CYOutput &out, CYFlags flags) const {
     _assert(false);
 }
 
-void CYTypeArrayOf::Output(CYOutput &out, CYIdentifier *identifier) const {
-    next_->Output(out, Precedence(), identifier);
+void CYTypeArrayOf::Output(CYOutput &out, CYPropertyName *name) const {
+    next_->Output(out, Precedence(), name, false);
     out << '[';
     out << size_;
     out << ']';
 }
 
-void CYTypeBlockWith::Output(CYOutput &out, CYIdentifier *identifier) const {
+void CYTypeBlockWith::Output(CYOutput &out, CYPropertyName *name) const {
     out << '(' << '^';
-    next_->Output(out, Precedence(), identifier);
+    next_->Output(out, Precedence(), name, false);
     out << ')' << '(' << parameters_ << ')';
 }
 
-void CYTypeConstant::Output(CYOutput &out, CYIdentifier *identifier) const {
-    out << "const" << ' ';
-    next_->Output(out, Precedence(), identifier);
+void CYTypeConstant::Output(CYOutput &out, CYPropertyName *name) const {
+    out << "const";
+    next_->Output(out, Precedence(), name, false);
 }
 
-void CYTypeFunctionWith::Output(CYOutput &out, CYIdentifier *identifier) const {
-    next_->Output(out, Precedence(), identifier);
-    out << '(' << parameters_ << ')';
+void CYTypeFunctionWith::Output(CYOutput &out, CYPropertyName *name) const {
+    next_->Output(out, Precedence(), name, false);
+    out << '(' << parameters_;
+    if (variadic_) {
+        if (parameters_ != NULL)
+            out << ',' << ' ';
+        out << "...";
+    }
+    out << ')';
 }
 
-void CYTypePointerTo::Output(CYOutput &out, CYIdentifier *identifier) const {
+void CYTypePointerTo::Output(CYOutput &out, CYPropertyName *name) const {
     out << '*';
-    next_->Output(out, Precedence(), identifier);
+    next_->Output(out, Precedence(), name, false);
 }
 
-void CYTypeVolatile::Output(CYOutput &out, CYIdentifier *identifier) const {
+void CYTypeVolatile::Output(CYOutput &out, CYPropertyName *name) const {
     out << "volatile";
-    next_->Output(out, Precedence(), identifier);
+    next_->Output(out, Precedence(), name, true);
 }
 
-void CYTypeModifier::Output(CYOutput &out, int precedence, CYIdentifier *identifier) const {
+void CYTypeModifier::Output(CYOutput &out, int precedence, CYPropertyName *name, bool space) const {
+    if (this == NULL && name == NULL)
+        return;
+    else if (space)
+        out << ' ';
+
     if (this == NULL) {
-        out << identifier;
+        name->PropertyName(out);
         return;
     }
 
@@ -608,14 +801,18 @@ void CYTypeModifier::Output(CYOutput &out, int precedence, CYIdentifier *identif
 
     if (protect)
         out << '(';
-    Output(out, identifier);
+    Output(out, name);
     if (protect)
         out << ')';
 }
 
-void CYTypedIdentifier::Output(CYOutput &out) const {
-    specifier_->Output(out);
-    modifier_->Output(out, 0, identifier_);
+void CYType::Output(CYOutput &out, CYPropertyName *name) const {
+    out << *specifier_;
+    modifier_->Output(out, 0, name, true);
+}
+
+void CYType::Output(CYOutput &out) const {
+    Output(out, NULL);
 }
 
 void CYEncodedType::Output(CYOutput &out, CYFlags flags) const {
@@ -623,7 +820,7 @@ void CYEncodedType::Output(CYOutput &out, CYFlags flags) const {
 }
 
 void CYTypedParameter::Output(CYOutput &out) const {
-    out << typed_;
+    type_->Output(out, name_);
     if (next_ != NULL)
         out << ',' << ' ' << next_;
 }
@@ -637,12 +834,18 @@ void CYLambda::Output(CYOutput &out, CYFlags flags) const {
 }
 
 void CYTypeDefinition::Output(CYOutput &out, CYFlags flags) const {
-    out << "typedef" << ' ' << *typed_;
+    out << "typedef" << ' ';
+    type_->Output(out, name_);
+    out.Terminate();
+}
+
+void CYTypeExpression::Output(CYOutput &out, CYFlags flags) const {
+    out << '(' << "typedef" << ' ' << *typed_ << ')';
 }
 
-void CYLet::Output(CYOutput &out, CYFlags flags) const {
+void CYLexical::Output(CYOutput &out, CYFlags flags) const {
     out << "let" << ' ';
-    declarations_->Output(out, flags); // XXX: flags
+    bindings_->Output(out, flags); // XXX: flags
     out << ';';
 }
 
@@ -751,6 +954,14 @@ void CYRegEx::Output(CYOutput &out, CYFlags flags) const {
     out << Value();
 }
 
+void CYResolveMember::Output(CYOutput &out, CYFlags flags) const {
+    object_->Output(out, Precedence(), CYLeft(flags));
+    if (const char *word = property_->Word())
+        out << "::" << word;
+    else
+        out << "::" << '[' << *property_ << ']';
+}
+
 void CYReturn::Output(CYOutput &out, CYFlags flags) const {
     out << "return";
     if (value_ != NULL)
@@ -759,7 +970,7 @@ void CYReturn::Output(CYOutput &out, CYFlags flags) const {
 }
 
 void CYRubyBlock::Output(CYOutput &out, CYFlags flags) const {
-    call_->Output(out, CYLeft(flags));
+    lhs_->Output(out, CYLeft(flags));
     out << ' ';
     proc_->Output(out, CYRight(flags));
 }
@@ -772,6 +983,11 @@ void CYRubyProc::Output(CYOutput &out, CYFlags flags) const {
     out << '\t' << '}';
 }
 
+void CYSubscriptMember::Output(CYOutput &out, CYFlags flags) const {
+    object_->Output(out, Precedence(), CYLeft(flags));
+    out << "." << '[' << *property_ << ']';
+}
+
 void CYStatement::Multiple(CYOutput &out, CYFlags flags) const {
     bool first(true);
     CYForEach (next, this) {
@@ -808,7 +1024,7 @@ void CYStatement::Single(CYOutput &out, CYFlags flags, CYCompactType request) co
 
 void CYString::Output(CYOutput &out, CYFlags flags) const {
     std::ostringstream str;
-    CYStringify(str, value_, size_);
+    CYStringify(str, value_, size_, CYStringifyModeLegacy);
     out << str.str().c_str();
 }
 
@@ -854,6 +1070,23 @@ 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->type_->Output(out, field->name_);
+        out.Terminate();
+        out << '\n';
+    }
+    --out.indent_;
+    out << '\t' << '}';
+}
+
 void CYSuperAccess::Output(CYOutput &out, CYFlags flags) const {
     out << "super";
     if (const char *word = property_->Word())
@@ -874,6 +1107,15 @@ void CYSwitch::Output(CYOutput &out, CYFlags flags) const {
     out << '\t' << '}';
 }
 
+void CYSymbol::Output(CYOutput &out, CYFlags flags) const {
+    bool protect((flags & CYNoColon) != 0);
+    if (protect)
+        out << '(';
+    out << ':' << name_;
+    if (protect)
+        out << ')';
+}
+
 void CYThis::Output(CYOutput &out, CYFlags flags) const {
     out << "this";
 }
@@ -900,24 +1142,96 @@ void Try::Output(CYOutput &out, CYFlags flags) const {
 
 } }
 
+void CYTypeCharacter::Output(CYOutput &out) const {
+    switch (signing_) {
+        case CYTypeNeutral: break;
+        case CYTypeSigned: out << "signed" << ' '; break;
+        case CYTypeUnsigned: out << "unsigned" << ' '; break;
+    }
+
+    out << "char";
+}
+
+void CYTypeEnum::Output(CYOutput &out) const {
+    out << "enum" << ' ';
+    if (name_ != NULL)
+        out << *name_;
+    else {
+        if (specifier_ != NULL)
+            out << ':' << ' ' << *specifier_ << ' ';
+
+        out << '{' << '\n';
+        ++out.indent_;
+        bool comma(false);
+
+        CYForEach (constant, constants_) {
+            if (comma)
+                out << ',' << '\n';
+            else
+                comma = true;
+            out << '\t' << constant->name_;
+            out << ' ' << '=' << ' ' << constant->value_;
+        }
+
+        if (out.pretty_)
+            out << ',';
+        out << '\n';
+        --out.indent_;
+        out << '\t' << '}';
+    }
+}
+
 void CYTypeError::Output(CYOutput &out) const {
     out << "@error";
 }
 
-void CYTypeLong::Output(CYOutput &out) const {
-    out << "long" << specifier_;
+void CYTypeFloating::Output(CYOutput &out) const {
+    switch (length_) {
+        case 0: out << "float"; break;
+        case 1: out << "double"; break;
+        case 2: out << "long" << ' ' << "double"; break;
+        default: _assert(false);
+    }
 }
 
-void CYTypeShort::Output(CYOutput &out) const {
-    out << "short" << specifier_;
+void CYTypeInt128::Output(CYOutput &out) const {
+    switch (signing_) {
+        case CYTypeNeutral: break;
+        case CYTypeSigned: out << "signed" << ' '; break;
+        case CYTypeUnsigned: out << "unsigned" << ' '; break;
+    }
+
+    out << "__int128";
 }
 
-void CYTypeSigned::Output(CYOutput &out) const {
-    out << "signed" << specifier_;
+void CYTypeIntegral::Output(CYOutput &out) const {
+    if (signing_ == CYTypeUnsigned)
+        out << "unsigned" << ' ';
+    switch (length_) {
+        case 0: out << "short"; break;
+        case 1: out << "int"; break;
+        case 2: out << "long"; break;
+        case 3: out << "long" << ' ' << "long"; break;
+        default: _assert(false);
+    }
 }
 
-void CYTypeUnsigned::Output(CYOutput &out) const {
-    out << "unsigned" << specifier_;
+void CYTypeStruct::Output(CYOutput &out) const {
+    out << "struct";
+    if (name_ != NULL)
+        out << ' ' << *name_;
+    else
+        out << *tail_;
+}
+
+void CYTypeReference::Output(CYOutput &out) const {
+    switch (kind_) {
+        case CYTypeReferenceStruct: out << "struct"; break;
+        case CYTypeReferenceEnum: out << "enum"; break;
+        default: _assert(false);
+    }
+
+    out << ' ' << *name_;
 }
 
 void CYTypeVariable::Output(CYOutput &out) const {
@@ -930,7 +1244,7 @@ void CYTypeVoid::Output(CYOutput &out) const {
 
 void CYVar::Output(CYOutput &out, CYFlags flags) const {
     out << "var" << ' ';
-    declarations_->Output(out, flags); // XXX: flags
+    bindings_->Output(out, flags); // XXX: flags
     out << ';';
 }