[544deb9] | 1 | #include "ReplacePseudoFunc.hpp" |
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| 2 | |
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| 3 | #include <set> |
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| 4 | |
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[ac939461] | 5 | #include "AST/Decl.hpp" |
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[544deb9] | 6 | #include "AST/Inspect.hpp" |
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[ac939461] | 7 | #include "AST/Pass.hpp" |
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[0522ebe] | 8 | #include "AST/Print.hpp" |
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[ac939461] | 9 | #include "AST/Stmt.hpp" |
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| 10 | #include "Common/utility.h" |
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[0522ebe] | 11 | #include "ResolvExpr/CandidateFinder.hpp" |
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[544deb9] | 12 | #include "ResolvExpr/Resolver.h" |
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[a55ebcc] | 13 | #include "SymTab/Mangler.h" |
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| 14 | |
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[ac939461] | 15 | namespace Validate { |
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| 16 | |
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| 17 | namespace { |
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| 18 | |
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[544deb9] | 19 | std::set<std::string> queryLabels; |
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| 20 | std::set<std::string> queryValues; |
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| 21 | |
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[0522ebe] | 22 | struct ReplaceEnumInstWithPos final : public ast::WithShortCircuiting { |
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| 23 | const ast::ObjectDecl* postvisit(const ast::ObjectDecl* decl) { |
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| 24 | auto enumInst = decl->type.strict_as<ast::EnumInstType>(); |
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| 25 | auto enumPos = new ast::EnumPosType(enumInst); |
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| 26 | auto ret = ast::mutate_field(decl, &ast::ObjectDecl::type, enumPos); |
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| 27 | ret = ast::mutate_field(ret, &ast::ObjectDecl::mangleName, |
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| 28 | Mangle::mangle(ret)); |
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| 29 | return ret; |
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| 30 | } |
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| 31 | }; |
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| 32 | |
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| 33 | const inline std::string getValueArrayName(std::string enumName) { |
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| 34 | return "values_" + enumName; |
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| 35 | } |
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| 36 | |
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[a55ebcc] | 37 | // struct AutoInit { |
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| 38 | // ast::EnumDecl const* postvisit( const ast::EnumDecl* expr ); |
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| 39 | // }; |
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| 40 | |
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[c75b30a] | 41 | struct WrapEnumValueExpr final : public ast::WithShortCircuiting, |
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| 42 | public ast::WithSymbolTable, |
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| 43 | public ast::WithConstTranslationUnit { |
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| 44 | void previsit(const ast::DeclStmt* expr); |
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| 45 | void previsit(const ast::ApplicationExpr* expr); |
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| 46 | void previsit(const ast::CastExpr* expr); |
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[0522ebe] | 47 | void previsit(const ast::VariableExpr*) { visit_children = false; } |
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[c75b30a] | 48 | |
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| 49 | ast::Expr const* postvisit(const ast::VariableExpr* expr); |
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| 50 | }; |
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| 51 | |
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[544deb9] | 52 | struct FindGenEnumArray final : public ast::WithShortCircuiting { |
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| 53 | void previsit(const ast::ApplicationExpr* enumDecl); |
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[ac939461] | 54 | }; |
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[544deb9] | 55 | |
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[c75b30a] | 56 | struct PseudoFuncGenerateRoutine final : public ast::WithDeclsToAdd<>, |
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| 57 | public ast::WithSymbolTable, |
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[a55ebcc] | 58 | public ast::WithShortCircuiting, |
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| 59 | public ast::WithConstTranslationUnit { |
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[c75b30a] | 60 | void previsit(const ast::EnumDecl* enumDecl); |
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| 61 | }; |
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| 62 | |
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| 63 | struct ReplacePseudoFuncCore : public ast::WithShortCircuiting, |
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| 64 | public ast::WithSymbolTable, |
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| 65 | public ast::WithConstTranslationUnit { |
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| 66 | ast::Expr const* postvisit(ast::ApplicationExpr const* decl); |
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| 67 | }; |
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| 68 | |
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[a55ebcc] | 69 | // ast::EnumDecl const * AutoInit::postvisit( const ast::EnumDecl * expr ) { |
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| 70 | // for ( size_t i = 0; i < expr->members.size(); i++ ) { |
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| 71 | // auto mem = expr->members[i].as<ast::ObjectDecl>(); |
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| 72 | // assert( mem ); |
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| 73 | // if ( mem->init ) |
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| 74 | // } |
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| 75 | // return expr; |
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| 76 | // } |
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[c75b30a] | 77 | |
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[a55ebcc] | 78 | void WrapEnumValueExpr::previsit(const ast::ApplicationExpr* expr) { |
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[c75b30a] | 79 | auto varExpr = expr->func.as<ast::VariableExpr>(); |
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| 80 | auto fname = ast::getFunctionName(expr); |
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[0522ebe] | 81 | if (!varExpr || varExpr->var->linkage == ast::Linkage::Intrinsic) { |
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| 82 | if (fname == "?{}" || fname == "?=?") visit_children = false; |
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| 83 | } |
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[c75b30a] | 84 | |
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[bbf2cb1] | 85 | if (fname == "labelE" || fname == "valueE" || fname == "posE" || |
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| 86 | fname == "pred" || fname == "succ") { |
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[c75b30a] | 87 | visit_children = false; |
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[a55ebcc] | 88 | } |
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[c75b30a] | 89 | } |
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| 90 | |
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| 91 | void WrapEnumValueExpr::previsit(const ast::DeclStmt*) { |
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| 92 | visit_children = false; |
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| 93 | } |
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| 94 | |
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| 95 | void WrapEnumValueExpr::previsit(const ast::CastExpr* expr) { |
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| 96 | if (expr->result && expr->result.as<ast::ReferenceType>()) { |
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| 97 | visit_children = false; |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | ast::Expr const* WrapEnumValueExpr::postvisit(const ast::VariableExpr* expr) { |
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| 102 | if (!expr->result) { |
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| 103 | return expr; |
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| 104 | } |
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| 105 | if (auto enumInst = expr->result.as<ast::EnumInstType>()) { |
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| 106 | if (enumInst->base && enumInst->base->base) { |
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| 107 | auto untyped = new ast::UntypedExpr( |
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| 108 | expr->location, new ast::NameExpr(expr->location, "valueE"), |
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[0522ebe] | 109 | {std::move(expr)}); |
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[c75b30a] | 110 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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| 111 | auto result = ResolvExpr::findVoidExpression(untyped, context); |
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[a55ebcc] | 112 | ast::ptr<ast::ApplicationExpr> ret = |
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[0522ebe] | 113 | result.strict_as<ast::ApplicationExpr>(); |
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| 114 | return ast::deepCopy(ret); |
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[c75b30a] | 115 | } |
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| 116 | } |
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| 117 | return expr; |
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| 118 | } |
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| 119 | |
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[544deb9] | 120 | void FindGenEnumArray::previsit(const ast::ApplicationExpr* expr) { |
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| 121 | auto fname = ast::getFunctionName(expr); |
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| 122 | if (fname == "labelE" || fname == "valueE") { |
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| 123 | if (expr->args.size() != 1) { |
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| 124 | SemanticError(expr, "Position Expression only take one parameter"); |
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| 125 | } |
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| 126 | const ast::VariableExpr* arg = |
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| 127 | expr->args.front().as<const ast::VariableExpr>(); |
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| 128 | if (!arg) { |
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| 129 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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| 130 | } |
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| 131 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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| 132 | const std::string referredName = argAsVar->name; |
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| 133 | const ast::EnumInstType* argType = |
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| 134 | argAsVar->type.as<const ast::EnumInstType>(); |
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| 135 | if (!argType) { |
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| 136 | SemanticError( |
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| 137 | argAsVar, |
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| 138 | "Position can only be used on an enumeration instance"); |
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| 139 | } |
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| 140 | ast::ptr<ast::EnumDecl> base = argType->base; |
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| 141 | assert(base); |
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| 142 | if (fname == "labelE") queryLabels.insert(base->name); |
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| 143 | if (fname == "valueE") queryValues.insert(base->name); |
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| 144 | } |
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[ac939461] | 145 | } |
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| 146 | |
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[0522ebe] | 147 | const ast::Init* getAutoInit(const CodeLocation& location, |
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| 148 | const ast::Type* type, |
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| 149 | ResolvExpr::ResolveContext context, |
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| 150 | const ast::Init* prev) { |
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| 151 | if (auto prevInit = dynamic_cast<const ast::SingleInit*>(prev)) { |
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[a55ebcc] | 152 | auto prevInitExpr = prevInit->value; |
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[0522ebe] | 153 | if (auto constInit = prevInitExpr.as<ast::ConstantExpr>()) { |
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[a55ebcc] | 154 | // Assume no string literal for now |
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| 155 | return new ast::SingleInit( |
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[0522ebe] | 156 | location, ast::ConstantExpr::from_int( |
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| 157 | location, constInit->intValue() + 1)); |
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[a55ebcc] | 158 | } else { |
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| 159 | auto untypedThisInit = new ast::UntypedExpr( |
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[0522ebe] | 160 | location, new ast::NameExpr(location, "?++"), {prevInitExpr}); |
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| 161 | auto typedInit = ResolvExpr::findSingleExpression(untypedThisInit, |
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| 162 | type, context); |
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| 163 | return new ast::SingleInit(location, typedInit); |
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[a55ebcc] | 164 | } |
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| 165 | } |
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[0522ebe] | 166 | SemanticError(prev, "Auto Init a List is not implemented"); |
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[a55ebcc] | 167 | return prev; |
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| 168 | } |
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| 169 | |
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[544deb9] | 170 | void PseudoFuncGenerateRoutine::previsit(const ast::EnumDecl* enumDecl) { |
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| 171 | visit_children = false; |
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| 172 | const CodeLocation& location = enumDecl->location; |
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| 173 | if (enumDecl->members.size() == 0 || !enumDecl->base) return; |
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| 174 | |
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| 175 | std::vector<ast::ptr<ast::Init>> inits; |
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| 176 | std::vector<ast::ptr<ast::Init>> labels; |
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[a55ebcc] | 177 | auto type = enumDecl->base; |
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| 178 | |
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[0522ebe] | 179 | for (size_t i = 0; i < enumDecl->members.size(); i++) { |
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| 180 | ast::ptr<ast::Decl> mem = enumDecl->members.at(i); |
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| 181 | auto memAsObjectDecl = mem.as<ast::ObjectDecl>(); |
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| 182 | assert(memAsObjectDecl); |
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| 183 | if (memAsObjectDecl->init) { |
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| 184 | inits.emplace_back(memAsObjectDecl->init); |
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[a55ebcc] | 185 | } else { |
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[0522ebe] | 186 | const CodeLocation& location = mem->location; |
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| 187 | if (i == 0) { |
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| 188 | inits.emplace_back(new ast::SingleInit( |
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| 189 | location, ast::ConstantExpr::from_int(mem->location, 0))); |
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[a55ebcc] | 190 | } else { |
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[0522ebe] | 191 | inits.emplace_back(getAutoInit( |
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| 192 | location, enumDecl->base, |
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| 193 | ResolvExpr::ResolveContext{symtab, transUnit().global}, |
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| 194 | inits.at(i - 1).as<ast::SingleInit>())); |
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[a55ebcc] | 195 | } |
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| 196 | } |
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[544deb9] | 197 | labels.emplace_back(new ast::SingleInit( |
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[0522ebe] | 198 | location, ast::ConstantExpr::from_string(location, mem->name))); |
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| 199 | } |
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[544deb9] | 200 | if (queryValues.count(enumDecl->name)) { |
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| 201 | auto init = new ast::ListInit(location, std::move(inits)); |
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[c75b30a] | 202 | const ast::ArrayType* arrT = new ast::ArrayType( |
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| 203 | enumDecl->base, |
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| 204 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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| 205 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim); |
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| 206 | ast::ObjectDecl* values = new ast::ObjectDecl( |
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| 207 | location, "values_" + enumDecl->name, arrT, init, |
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| 208 | ast::Storage::Static, ast::Linkage::AutoGen); |
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[544deb9] | 209 | symtab.addId(values); |
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| 210 | values->mangleName = Mangle::mangle(values); |
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| 211 | declsToAddAfter.push_back(values); |
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| 212 | } |
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| 213 | if (queryLabels.count(enumDecl->name)) { |
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| 214 | auto label_strings = new ast::ListInit(location, std::move(labels)); |
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[c75b30a] | 215 | auto labels = new ast::ObjectDecl( |
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[544deb9] | 216 | location, "labels_" + enumDecl->name, |
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| 217 | new ast::ArrayType( |
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| 218 | new ast::PointerType(new ast::BasicType{ast::BasicType::Char}), |
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| 219 | ast::ConstantExpr::from_int(location, enumDecl->members.size()), |
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| 220 | ast::LengthFlag::FixedLen, ast::DimensionFlag::DynamicDim), |
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| 221 | label_strings, ast::Storage::Static, ast::Linkage::AutoGen); |
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[c75b30a] | 222 | symtab.addId(labels); |
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| 223 | labels->mangleName = Mangle::mangle(labels); |
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| 224 | declsToAddAfter.push_back(labels); |
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[544deb9] | 225 | } |
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| 226 | } |
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| 227 | |
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[bbf2cb1] | 228 | ast::ApplicationExpr const* resolveAttributeFunctions( |
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[c75b30a] | 229 | const CodeLocation location, ResolvExpr::ResolveContext context, |
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[0522ebe] | 230 | const ast::VariableExpr* arg, const ast::EnumDecl* base, |
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| 231 | const std::string& name) { |
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[c75b30a] | 232 | ast::Expr* toResolve = new ast::NameExpr(location, name + base->name); |
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[0522ebe] | 233 | // Find the request arrary |
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| 234 | auto arr = ResolvExpr::findVoidExpression(toResolve, context); |
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| 235 | assert(arr.get()); |
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| 236 | auto arrAsVar = arr.strict_as<ast::VariableExpr>(); |
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| 237 | // change EnumInstType to EnumPosType to avoid recursive resolution |
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| 238 | auto argAsDecl = arg->var.as<ast::ObjectDecl>(); |
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| 239 | if (argAsDecl->type.as<ast::EnumInstType>()) { |
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| 240 | ast::Pass<ReplaceEnumInstWithPos> replacer; |
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| 241 | auto rep = argAsDecl->accept(replacer); |
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| 242 | auto mutatedArg = ast::mutate_field(arg, &ast::VariableExpr::var, rep); |
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[bbf2cb1] | 243 | mutatedArg = ast::mutate_field(mutatedArg, &ast::VariableExpr::result, |
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| 244 | mutatedArg->var->get_type()); |
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[0522ebe] | 245 | auto untyped = |
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| 246 | new ast::UntypedExpr(location, new ast::NameExpr(location, "?[?]"), |
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| 247 | {std::move(arrAsVar), mutatedArg}); |
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| 248 | auto typedResult = ResolvExpr::findVoidExpression(untyped, context); |
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| 249 | ast::ptr<ast::ApplicationExpr> ret = |
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| 250 | typedResult.strict_as<ast::ApplicationExpr>(); |
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| 251 | return ast::deepCopy(ret); |
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| 252 | } else { |
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| 253 | auto untyped = |
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| 254 | new ast::UntypedExpr(location, new ast::NameExpr(location, "?[?]"), |
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| 255 | {std::move(arrAsVar), arg}); |
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| 256 | auto typedResult = ResolvExpr::findVoidExpression(untyped, context); |
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| 257 | |
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| 258 | ast::ptr<ast::ApplicationExpr> ret = |
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| 259 | typedResult.strict_as<ast::ApplicationExpr>(); |
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| 260 | return ast::deepCopy(ret); |
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| 261 | } |
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[c75b30a] | 262 | } |
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[544deb9] | 263 | |
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| 264 | ast::Expr const* ReplacePseudoFuncCore::postvisit( |
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| 265 | ast::ApplicationExpr const* expr) { |
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| 266 | auto fname = ast::getFunctionName(expr); |
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| 267 | auto location = expr->location; |
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| 268 | if (fname == "posE" || fname == "valueE" || fname == "labelE") { |
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| 269 | if (expr->args.size() != 1) { |
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| 270 | SemanticError(expr, |
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| 271 | "Pseudo Enum Expression only take one parameter"); |
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[ac939461] | 272 | } |
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[544deb9] | 273 | ast::ptr<ast::VariableExpr> arg = |
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| 274 | expr->args.front().as<const ast::VariableExpr>(); |
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| 275 | if (!arg) { |
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| 276 | SemanticError(expr, "Unimplement Pseudo Function Cases"); |
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[ac939461] | 277 | } |
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[544deb9] | 278 | const ast::ObjectDecl* argAsVar = arg->var.as<const ast::ObjectDecl>(); |
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[ac939461] | 279 | const std::string referredName = argAsVar->name; |
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[a55ebcc] | 280 | |
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[0522ebe] | 281 | if (const ast::EnumInstType* argTypeAsEnumInst = |
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| 282 | argAsVar->type.as<const ast::EnumInstType>()) { |
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| 283 | const ast::EnumDecl* base = argTypeAsEnumInst->base; |
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| 284 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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| 285 | // If resolvable as constant |
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| 286 | for (size_t i = 0; i < base->members.size(); i++) { |
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| 287 | if (base->members[i]->name == referredName) { |
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| 288 | if (fname == "posE") |
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| 289 | return ast::ConstantExpr::from_int(expr->location, i); |
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| 290 | else if (fname == "labelE") |
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| 291 | return ast::ConstantExpr::from_string(expr->location, |
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| 292 | referredName); |
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| 293 | else { |
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[bbf2cb1] | 294 | return resolveAttributeFunctions( |
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[0522ebe] | 295 | location, context, arg.get(), base, "values_"); |
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| 296 | } |
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| 297 | } |
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[544deb9] | 298 | } |
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| 299 | |
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[0522ebe] | 300 | if (fname == "labelE") { |
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[bbf2cb1] | 301 | if (auto labelExpr = resolveAttributeFunctions( |
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[0522ebe] | 302 | location, context, arg.get(), base, "labels_")) { |
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| 303 | return labelExpr; |
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| 304 | } |
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| 305 | } else if (fname == "valueE") { |
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[bbf2cb1] | 306 | if (auto valueExpr = resolveAttributeFunctions( |
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[0522ebe] | 307 | location, context, arg.get(), base, "values_")) { |
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| 308 | return valueExpr; |
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| 309 | } |
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| 310 | } else { // it is position; replace itself |
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| 311 | return std::move(arg.get()); |
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[544deb9] | 312 | } |
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[0522ebe] | 313 | } else if (const ast::EnumPosType* argTypeAsPos = |
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| 314 | argAsVar->type.as<const ast::EnumPosType>()) { |
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| 315 | const ast::EnumDecl* base = argTypeAsPos->instance->base; |
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| 316 | ResolvExpr::ResolveContext context{symtab, transUnit().global}; |
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| 317 | if (fname == "labelE") { |
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[bbf2cb1] | 318 | if (auto labelExpr = resolveAttributeFunctions( |
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[0522ebe] | 319 | location, context, arg.get(), base, "labels_")) { |
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| 320 | return labelExpr; |
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| 321 | } |
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| 322 | } else if (fname == "valueE") { |
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[bbf2cb1] | 323 | if (auto valueExpr = resolveAttributeFunctions( |
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[0522ebe] | 324 | location, context, arg.get(), base, "values_")) { |
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| 325 | return valueExpr; |
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| 326 | } |
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| 327 | } else { // it is position; replace itself |
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| 328 | return std::move(arg.get()); |
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[ac939461] | 329 | } |
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[0522ebe] | 330 | } else { |
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| 331 | SemanticError(argAsVar, |
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| 332 | "Pseudo Enum Expression can only be used on an " |
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| 333 | "enumeration instance"); |
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[ac939461] | 334 | } |
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| 335 | } |
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| 336 | return expr; |
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| 337 | } |
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| 338 | |
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[0522ebe] | 339 | ast::ptr<ast::Expr> reduceCastExpr(ast::ptr<ast::Expr> expr) { |
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| 340 | if (auto castExpr = expr.as<ast::CastExpr>()) { |
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| 341 | return reduceCastExpr(castExpr->arg); |
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| 342 | } |
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| 343 | return expr; |
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| 344 | } |
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| 345 | |
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[bbf2cb1] | 346 | struct ReplaceSuccAndPred final : public ast::WithSymbolTable, |
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| 347 | public ast::WithConstTranslationUnit { |
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| 348 | const ast::Expr* postvisit(const ast::ApplicationExpr* expr) { |
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| 349 | auto fname = ast::getFunctionName(expr); |
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| 350 | if (fname == "succ" || fname == "pred") { |
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| 351 | const CodeLocation& location = expr->location; |
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| 352 | if (expr->args.size() != 1) return expr; |
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| 353 | |
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| 354 | auto param = expr->args.front(); |
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| 355 | if (auto argAsVar = reduceCastExpr(param).as<ast::VariableExpr>()) { |
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| 356 | if (auto argAsDecl = argAsVar->var.as<ast::ObjectDecl>()) { |
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| 357 | if (auto enumInst = |
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| 358 | argAsDecl->type.as<ast::EnumInstType>()) { |
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| 359 | auto castTo = new ast::EnumPosType(enumInst); |
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| 360 | auto castExpr = |
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| 361 | new ast::CastExpr(param->location, param, castTo); |
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| 362 | |
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| 363 | auto untyped = new ast::UntypedExpr( |
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| 364 | expr->location, |
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| 365 | new ast::NameExpr(location, fname == "succ" |
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| 366 | ? "_successor_" |
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| 367 | : "_predessor_"), |
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| 368 | {castExpr}); |
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| 369 | ResolvExpr::ResolveContext context{symtab, |
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| 370 | transUnit().global}; |
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| 371 | auto typedResult = |
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| 372 | ResolvExpr::findVoidExpression(untyped, context); |
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| 373 | ast::ptr<ast::ApplicationExpr> ret = |
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| 374 | typedResult.strict_as<ast::ApplicationExpr>(); |
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| 375 | return ast::deepCopy(ret); |
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| 376 | } else if (auto posType = |
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| 377 | argAsDecl->type.as<ast::EnumPosType>()) { |
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| 378 | // Very nasty fix. Must be revisit |
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| 379 | if (auto paramAsVar = param.as<ast::VariableExpr>()) { |
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| 380 | if (paramAsVar->result.as<ast::EnumInstType>()) { |
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| 381 | auto paramToUse = ast::mutate_field( |
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| 382 | paramAsVar, &ast::VariableExpr::result, |
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| 383 | posType); |
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| 384 | auto untyped = new ast::UntypedExpr( |
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| 385 | expr->location, |
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| 386 | new ast::NameExpr(location, |
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| 387 | fname == "succ" |
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| 388 | ? "_successor_" |
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| 389 | : "_predessor_"), |
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| 390 | {paramToUse}); |
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| 391 | ResolvExpr::ResolveContext context{ |
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| 392 | symtab, transUnit().global}; |
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| 393 | auto typedResult = |
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| 394 | ResolvExpr::findVoidExpression(untyped, |
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| 395 | context); |
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| 396 | ast::ptr<ast::ApplicationExpr> ret = |
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| 397 | typedResult |
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| 398 | .strict_as<ast::ApplicationExpr>(); |
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| 399 | return ast::deepCopy(ret); |
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| 400 | } |
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| 401 | } |
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| 402 | auto untyped = new ast::UntypedExpr( |
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| 403 | expr->location, |
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| 404 | new ast::NameExpr(location, fname == "succ" |
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| 405 | ? "_successor_" |
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| 406 | : "_predessor_"), |
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| 407 | {param}); |
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| 408 | ResolvExpr::ResolveContext context{symtab, |
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| 409 | transUnit().global}; |
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| 410 | auto typedResult = |
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| 411 | ResolvExpr::findVoidExpression(untyped, context); |
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| 412 | ast::ptr<ast::ApplicationExpr> ret = |
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| 413 | typedResult.strict_as<ast::ApplicationExpr>(); |
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| 414 | return ast::deepCopy(ret); |
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| 415 | } |
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| 416 | } |
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| 417 | } |
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| 418 | } |
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| 419 | return expr; |
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[0522ebe] | 420 | } |
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| 421 | }; |
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| 422 | |
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[544deb9] | 423 | } // namespace |
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[ac939461] | 424 | |
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[544deb9] | 425 | void replacePseudoFunc(ast::TranslationUnit& translationUnit) { |
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[c75b30a] | 426 | ast::Pass<WrapEnumValueExpr>::run(translationUnit); |
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[544deb9] | 427 | ast::Pass<FindGenEnumArray>::run(translationUnit); |
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[bbf2cb1] | 428 | |
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[544deb9] | 429 | ast::Pass<PseudoFuncGenerateRoutine>::run(translationUnit); |
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| 430 | ast::Pass<ReplacePseudoFuncCore>::run(translationUnit); |
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[bbf2cb1] | 431 | |
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| 432 | ast::Pass<ReplaceSuccAndPred>::run(translationUnit); |
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[ac939461] | 433 | } |
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[544deb9] | 434 | } // namespace Validate |
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