mirror of
https://github.com/ZDoom/gzdoom-gles.git
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- Added functions for converting the AST to text. This is not hooked in anywhere yet, since
the parser currently just throws the AST away. SVN r2969 (scripting)
This commit is contained in:
Randy Heit
parent
7e60ac1fb8
commit
bee4c3e760
3 changed files with 623 additions and 1 deletions
610
src/zscript/ast.cpp
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610
src/zscript/ast.cpp
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@ -0,0 +1,610 @@
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#include "dobject.h"
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#include "sc_man.h"
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#include "memarena.h"
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#include "zcc_parser.h"
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#include "zcc-parse.h"
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extern void (* const TreeNodePrinter[NUM_AST_NODE_TYPES])(FString &, ZCC_TreeNode *);
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static const char *BuiltInTypeNames[] =
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{
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"sint8", "uint8",
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"sint16", "uint16",
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"sint32", "uint32",
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"intauto",
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"bool",
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"float32", "float64", "floatauto",
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"string",
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"vector2",
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"vector3",
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"vector4",
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"name",
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"usertype"
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};
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static void PrintNode(FString &out, ZCC_TreeNode *node)
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{
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assert(TreeNodePrinter[NUM_AST_NODE_TYPES-1] != NULL);
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if (node->NodeType >= 0 && node->NodeType < NUM_AST_NODE_TYPES)
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{
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TreeNodePrinter[node->NodeType](out, node);
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}
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else
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{
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out.AppendFormat("(unknown-node-type-%d)", node->NodeType);
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}
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}
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static void PrintNodes(FString &out, ZCC_TreeNode *node, char addchar=' ')
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{
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ZCC_TreeNode *p;
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if (node == NULL)
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{
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out << "nil";
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}
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else
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{
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out << '(';
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p = node;
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do
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{
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PrintNode(out, p);
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p = p->SiblingNext;
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if (p != node)
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{
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out << ' ';
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}
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} while (p != node);
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out << ')';
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}
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if (addchar != '\0')
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{
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out << addchar;
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}
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}
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static void PrintBuiltInType(FString &out, EZCCBuiltinType type, bool addspace)
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{
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assert(ZCC_NUM_BUILT_IN_TYPES == countof(BuiltInTypeNames));
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if (unsigned(type) >= unsigned(ZCC_NUM_BUILT_IN_TYPES))
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{
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out.AppendFormat("bad-type-%u", type);
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}
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else
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{
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out << BuiltInTypeNames[type];
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}
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if (addspace)
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{
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out << ' ';
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}
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}
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static void PrintIdentifier(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Identifier *inode = (ZCC_Identifier *)node;
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out.AppendFormat("(identifier '%s')", FName(inode->Id).GetChars());
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}
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static void PrintStringConst(FString &out, FString str)
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{
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out << '"';
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for (size_t i = 0; i < str.Len(); ++i)
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{
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if (str[i] == '"')
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{
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out << "\"";
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}
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else if (str[i] == '\\')
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{
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out << "\\\\";
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}
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else if (str[i] >= 32)
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{
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out << str[i];
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}
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else
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{
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out.AppendFormat("\\x%02X", str[i]);
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}
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}
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}
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static void PrintClass(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Class *cnode = (ZCC_Class *)node;
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out << "(class ";
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PrintNodes(out, cnode->ClassName);
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PrintNodes(out, cnode->ParentName);
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PrintNodes(out, cnode->Replaces);
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out.AppendFormat("%08x ", cnode->Flags);
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PrintNodes(out, cnode->Body, ')');
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}
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static void PrintStruct(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Struct *snode = (ZCC_Struct *)node;
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out.AppendFormat("(struct '%s' ", FName(snode->StructName).GetChars());
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PrintNodes(out, snode->Body, ')');
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}
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static void PrintEnum(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Enum *enode = (ZCC_Enum *)node;
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out.AppendFormat("(enum '%s' ", FName(enode->EnumName).GetChars());
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PrintBuiltInType(out, enode->EnumType, true);
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PrintNodes(out, enode->Elements, ')');
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}
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static void PrintEnumNode(FString &out, ZCC_TreeNode *node)
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{
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ZCC_EnumNode *enode = (ZCC_EnumNode *)node;
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out.AppendFormat("(enum-node '%s' ", FName(enode->ElemName));
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PrintNodes(out, enode->ElemValue, ')');
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}
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static void PrintStates(FString &out, ZCC_TreeNode *node)
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{
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ZCC_States *snode = (ZCC_States *)node;
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out << "(states ";
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PrintNodes(out, snode->Body, ')');
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}
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static void PrintStatePart(FString &out, ZCC_TreeNode *node)
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{
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out << "(state-part)";
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}
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static void PrintStateLabel(FString &out, ZCC_TreeNode *node)
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{
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ZCC_StateLabel *snode = (ZCC_StateLabel *)node;
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out.AppendFormat("(state-label '%s')", FName(snode->Label).GetChars());
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}
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static void PrintStateStop(FString &out, ZCC_TreeNode *node)
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{
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out << "(state-stop)";
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}
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static void PrintStateWait(FString &out, ZCC_TreeNode *node)
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{
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out << "(state-wait)";
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}
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static void PrintStateFail(FString &out, ZCC_TreeNode *node)
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{
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out << "(state-fail)";
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}
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static void PrintStateLoop(FString &out, ZCC_TreeNode *node)
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{
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out << "(state-loop)";
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}
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static void PrintStateGoto(FString &out, ZCC_TreeNode *node)
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{
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ZCC_StateGoto *snode = (ZCC_StateGoto *)node;
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out << "(state-goto ";
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PrintNodes(out, snode->Label);
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PrintNodes(out, snode->Offset, ')');
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}
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static void PrintStateLine(FString &out, ZCC_TreeNode *node)
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{
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ZCC_StateLine *snode = (ZCC_StateLine *)node;
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out.AppendFormat("(state-line %c%c%c%c %s %s ",
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snode->Sprite[0], snode->Sprite[1], snode->Sprite[2], snode->Sprite[3],
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snode->bBright ? "bright " : "",
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snode->Frames->GetChars());
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PrintNodes(out, snode->Offset);
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PrintNodes(out, snode->Action, ')');
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}
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static void PrintVarName(FString &out, ZCC_TreeNode *node)
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{
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ZCC_VarName *vnode = (ZCC_VarName *)node;
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out.AppendFormat("(var-name '%s')", FName(vnode->Name).GetChars());
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}
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static void PrintType(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Type *tnode = (ZCC_Type *)node;
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out << "(bad-type ";
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PrintNodes(out, tnode->ArraySize, ')');
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}
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static void PrintBasicType(FString &out, ZCC_TreeNode *node)
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{
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ZCC_BasicType *tnode = (ZCC_BasicType *)node;
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out << "(basic-type ";
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PrintNodes(out, tnode->ArraySize);
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PrintBuiltInType(out, tnode->Type, true);
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PrintNodes(out, tnode->UserType, ')');
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}
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static void PrintMapType(FString &out, ZCC_TreeNode *node)
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{
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ZCC_MapType *tnode = (ZCC_MapType *)node;
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out << "(map-type ";
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PrintNodes(out, tnode->ArraySize);
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PrintNodes(out, tnode->KeyType);
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PrintNodes(out, tnode->ValueType, ')');
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}
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static void PrintDynArrayType(FString &out, ZCC_TreeNode *node)
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{
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ZCC_DynArrayType *tnode = (ZCC_DynArrayType *)node;
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out << "(dyn-array-type ";
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PrintNodes(out, tnode->ArraySize);
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PrintNodes(out, tnode->ElementType, ')');
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}
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static void PrintClassType(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ClassType *tnode = (ZCC_ClassType *)node;
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out << "(class-type ";
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PrintNodes(out, tnode->ArraySize);
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PrintNodes(out, tnode->Restriction, ')');
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}
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static void PrintExprType(FString &out, EZCCExprType type)
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{
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static const char *const types[] =
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{
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"nil ",
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"id ",
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"super ",
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"self ",
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"string-const ",
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"int-const ",
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"uint-const ",
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"float-const ",
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"func-call ",
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"array-access ",
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"member-access ",
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"post-inc ",
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"post-dec ",
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"pre-inc ",
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"pre-dec ",
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"negate ",
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"anti-negate ",
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"bit-not ",
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"bool-not ",
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"size-of ",
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"align-of ",
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"add ",
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"sub ",
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"mul ",
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"div ",
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"mod ",
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"pow ",
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"cross-product ",
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"dot-product ",
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"left-shift ",
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"right-shift ",
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"concat ",
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"lt ",
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"gt ",
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"lteq ",
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"gteq ",
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"ltgteq ",
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"is ",
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"eqeq ",
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"neq ",
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"apreq ",
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"bit-and ",
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"bit-or ",
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"bit-xor ",
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"bool-and ",
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"bool-or ",
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"scope ",
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"trinary ",
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};
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assert(countof(types) == PEX_COUNT_OF);
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if (unsigned(type) < countof(types))
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{
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out << types[type];
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}
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else
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{
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out.AppendFormat("bad-pex-%u ", type);
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}
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}
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static void PrintExpression(FString &out, ZCC_TreeNode *node)
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{
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ZCC_Expression *enode = (ZCC_Expression *)node;
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out << "(expr-";
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PrintExprType(out, enode->Operation);
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out << ')';
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}
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static void PrintExprID(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprID *enode = (ZCC_ExprID *)node;
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assert(enode->Operation == PEX_ID);
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out.AppendFormat("(expr-id '%s')", FName(enode->Identifier).GetChars());
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}
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static void PrintExprString(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprString *enode = (ZCC_ExprString *)node;
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assert(enode->Operation == PEX_StringConst);
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out.AppendFormat("(expr-string-const ");
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PrintStringConst(out, *enode->Value);
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out << ')';
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}
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static void PrintExprInt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprInt *enode = (ZCC_ExprInt *)node;
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assert(enode->Operation == PEX_IntConst || enode->Operation == PEX_UIntConst);
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out << "(expr-";
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PrintExprType(out, enode->Operation);
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out.AppendFormat("%d)", enode->Value);
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}
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static void PrintExprFloat(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprFloat *enode = (ZCC_ExprFloat *)node;
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assert(enode->Operation == PEX_FloatConst);
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out.AppendFormat("(expr-float-const %g)", enode->Value);
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}
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static void PrintExprFuncCall(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprFuncCall *enode = (ZCC_ExprFuncCall *)node;
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assert(enode->Operation == PEX_FuncCall);
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out << "(expr-func-call ";
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PrintNodes(out, enode->Function);
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PrintNodes(out, enode->Parameters, ')');
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}
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static void PrintExprMemberAccess(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprMemberAccess *enode = (ZCC_ExprMemberAccess *)node;
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assert(enode->Operation == PEX_MemberAccess);
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out << "(expr-member-access ";
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PrintNodes(out, enode->Left);
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out.AppendFormat("'%s')", FName(enode->Right).GetChars());
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}
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static void PrintExprUnary(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprUnary *enode = (ZCC_ExprUnary *)node;
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out << "(expr-";
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PrintExprType(out, enode->Operation);
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PrintNodes(out, enode->Operand, ')');
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}
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static void PrintExprBinary(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprBinary *enode = (ZCC_ExprBinary *)node;
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out << "(expr-";
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PrintExprType(out, enode->Operation);
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PrintNodes(out, enode->Left);
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PrintNodes(out, enode->Right, ')');
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}
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static void PrintExprTrinary(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExprTrinary *enode = (ZCC_ExprTrinary *)node;
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out << "(expr-";
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PrintExprType(out, enode->Operation);
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PrintNodes(out, enode->Test);
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PrintNodes(out, enode->Left);
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PrintNodes(out, enode->Right, ')');
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}
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static void PrintFuncParam(FString &out, ZCC_TreeNode *node)
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{
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ZCC_FuncParm *pnode = (ZCC_FuncParm *)node;
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out.AppendFormat("(func-parm %s ", FName(pnode->Label).GetChars());;
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PrintNodes(out, pnode->Value, ')');
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}
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static void PrintStatement(FString &out, ZCC_TreeNode *node)
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{
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out << "(statement)";
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}
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static void PrintCompoundStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_CompoundStmt *snode = (ZCC_CompoundStmt *)node;
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out << "(compound-stmt ";
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PrintNodes(out, snode->Content, ')');
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}
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static void PrintContinueStmt(FString &out, ZCC_TreeNode *node)
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{
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out << "(continue-stmt)";
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}
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static void PrintBreakStmt(FString &out, ZCC_TreeNode *node)
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{
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out << "(break-stmt)";
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}
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static void PrintReturnStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ReturnStmt *snode = (ZCC_ReturnStmt *)node;
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out << "(return-stmt ";
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PrintNodes(out, snode->Values, ')');
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}
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static void PrintExpressionStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_ExpressionStmt *snode = (ZCC_ExpressionStmt *)node;
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out << "(expression-stmt ";
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PrintNodes(out, snode->Expression, ')');
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}
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static void PrintIterationStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_IterationStmt *snode = (ZCC_IterationStmt *)node;
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out << "(iteration-stmt ";
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out << (snode->CheckAt == ZCC_IterationStmt::Start) ? "start " : "end ";
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PrintNodes(out, snode->LoopCondition);
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PrintNodes(out, snode->LoopBumper);
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PrintNodes(out, snode->LoopStatement, true);
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}
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static void PrintIfStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_IfStmt *snode = (ZCC_IfStmt *)node;
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out << "(if-stmt ";
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PrintNodes(out, snode->Condition);
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PrintNodes(out, snode->TruePath);
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PrintNodes(out, snode->FalsePath, ')');
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}
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static void PrintSwitchStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_SwitchStmt *snode = (ZCC_SwitchStmt *)node;
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out << "(switch-stmt ";
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PrintNodes(out, snode->Condition);
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PrintNodes(out, snode->Content, ')');
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}
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static void PrintCaseStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_CaseStmt *snode = (ZCC_CaseStmt *)node;
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out << "(case-stmt ";
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PrintNodes(out, snode->Condition, ')');
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}
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static void PrintAssignStmt(FString &out, ZCC_TreeNode *node)
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{
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ZCC_AssignStmt *snode = (ZCC_AssignStmt *)node;
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out << "(assign-stmt ";
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switch (snode->AssignOp)
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{
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case ZCC_EQ: out << "= "; break;
|
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case ZCC_MULEQ: out << "*= "; break;
|
||||
case ZCC_DIVEQ: out << "/= "; break;
|
||||
case ZCC_MODEQ: out << "%= "; break;
|
||||
case ZCC_ADDEQ: out << "+= "; break;
|
||||
case ZCC_SUBEQ: out << "-= "; break;
|
||||
case ZCC_LSHEQ: out << "<<= "; break;
|
||||
case ZCC_RSHEQ: out << ">>= "; break;
|
||||
case ZCC_ANDEQ: out << "&= "; break;
|
||||
case ZCC_OREQ: out << "|= "; break;
|
||||
case ZCC_XOREQ: out << "^= "; break;
|
||||
default:
|
||||
out.AppendFormat("assign-op-%d ", snode->AssignOp);
|
||||
}
|
||||
PrintNodes(out, snode->Dests);
|
||||
PrintNodes(out, snode->Sources, ')');
|
||||
}
|
||||
|
||||
static void PrintLocalVarStmt(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_LocalVarStmt *snode = (ZCC_LocalVarStmt *)node;
|
||||
out << "(local-var-stmt ";
|
||||
PrintNodes(out, snode->Type);
|
||||
PrintNodes(out, snode->Vars);
|
||||
PrintNodes(out, snode->Inits, ')');
|
||||
}
|
||||
|
||||
static void PrintFuncParamDecl(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_FuncParamDecl *dnode = (ZCC_FuncParamDecl *)node;
|
||||
out << "(func-param-decl ";
|
||||
PrintNodes(out, dnode->Type);
|
||||
out.AppendFormat("%s %x)", FName(dnode->Name).GetChars(), dnode->Flags);
|
||||
}
|
||||
|
||||
static void PrintConstantDef(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_ConstantDef *dnode = (ZCC_ConstantDef *)node;
|
||||
out.AppendFormat("(constant-def %s ", FName(dnode->Name).GetChars());
|
||||
PrintNodes(out, dnode->Value, ')');
|
||||
}
|
||||
|
||||
static void PrintDeclarator(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_Declarator *dnode = (ZCC_Declarator *)node;
|
||||
out << "(declarator ";
|
||||
PrintNodes(out, dnode->Type);
|
||||
out.AppendFormat("%x)", dnode->Flags);
|
||||
}
|
||||
|
||||
static void PrintVarDeclarator(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_VarDeclarator *dnode = (ZCC_VarDeclarator *)node;
|
||||
out << "(var-declarator ";
|
||||
PrintNodes(out, dnode->Type);
|
||||
out.AppendFormat("%x ", dnode->Flags);
|
||||
PrintNodes(out, dnode->Names, ')');
|
||||
}
|
||||
|
||||
static void PrintFuncDeclarator(FString &out, ZCC_TreeNode *node)
|
||||
{
|
||||
ZCC_FuncDeclarator *dnode = (ZCC_FuncDeclarator *)node;
|
||||
out << "(func-declarator ";
|
||||
PrintNodes(out, dnode->Type);
|
||||
out.AppendFormat("%x %s ", dnode->Flags, FName(dnode->Name).GetChars());
|
||||
PrintNodes(out, dnode->Params, ')');
|
||||
}
|
||||
|
||||
void (* const TreeNodePrinter[NUM_AST_NODE_TYPES])(FString &, ZCC_TreeNode *) =
|
||||
{
|
||||
PrintIdentifier,
|
||||
PrintClass,
|
||||
PrintStruct,
|
||||
PrintEnum,
|
||||
PrintEnumNode,
|
||||
PrintStates,
|
||||
PrintStatePart,
|
||||
PrintStateLabel,
|
||||
PrintStateStop,
|
||||
PrintStateWait,
|
||||
PrintStateFail,
|
||||
PrintStateLoop,
|
||||
PrintStateGoto,
|
||||
PrintStateLine,
|
||||
PrintVarName,
|
||||
PrintType,
|
||||
PrintBasicType,
|
||||
PrintMapType,
|
||||
PrintDynArrayType,
|
||||
PrintClassType,
|
||||
PrintExpression,
|
||||
PrintExprID,
|
||||
PrintExprString,
|
||||
PrintExprInt,
|
||||
PrintExprFloat,
|
||||
PrintExprFuncCall,
|
||||
PrintExprMemberAccess,
|
||||
PrintExprUnary,
|
||||
PrintExprBinary,
|
||||
PrintExprTrinary,
|
||||
PrintFuncParam,
|
||||
PrintStatement,
|
||||
PrintCompoundStmt,
|
||||
PrintContinueStmt,
|
||||
PrintBreakStmt,
|
||||
PrintReturnStmt,
|
||||
PrintExpressionStmt,
|
||||
PrintIterationStmt,
|
||||
PrintIfStmt,
|
||||
PrintSwitchStmt,
|
||||
PrintCaseStmt,
|
||||
PrintAssignStmt,
|
||||
PrintLocalVarStmt,
|
||||
PrintFuncParamDecl,
|
||||
PrintConstantDef,
|
||||
PrintDeclarator,
|
||||
PrintVarDeclarator,
|
||||
PrintFuncDeclarator
|
||||
};
|
||||
|
||||
FString ZCC_PrintAST(ZCC_TreeNode *root)
|
||||
{
|
||||
FString out;
|
||||
PrintNodes(out, root, '\0');
|
||||
return out;
|
||||
}
|
||||
|
|
@ -95,6 +95,8 @@ enum EZCCTreeNodeType
|
|||
AST_Declarator,
|
||||
AST_VarDeclarator,
|
||||
AST_FuncDeclarator,
|
||||
|
||||
NUM_AST_NODE_TYPES
|
||||
};
|
||||
|
||||
enum EZCCBuiltinType
|
||||
|
|
@ -117,6 +119,8 @@ enum EZCCBuiltinType
|
|||
ZCC_Vector4,
|
||||
ZCC_Name,
|
||||
ZCC_UserType,
|
||||
|
||||
ZCC_NUM_BUILT_IN_TYPES
|
||||
};
|
||||
|
||||
enum EZCCExprType
|
||||
|
|
@ -176,7 +180,9 @@ enum EZCCExprType
|
|||
|
||||
PEX_Scope,
|
||||
|
||||
PEX_Trinary
|
||||
PEX_Trinary,
|
||||
|
||||
PEX_COUNT_OF
|
||||
};
|
||||
|
||||
struct ZCC_TreeNode
|
||||
|
|
@ -487,3 +493,5 @@ struct ZCC_FuncDeclarator : ZCC_Declarator
|
|||
ZCC_FuncParamDecl *Params;
|
||||
ENamedName Name;
|
||||
};
|
||||
|
||||
FString ZCC_PrintAST(ZCC_TreeNode *root);
|
||||
|
|
|
|||
|
|
@ -6469,6 +6469,10 @@
|
|||
<Filter
|
||||
Name="ZScript"
|
||||
>
|
||||
<File
|
||||
RelativePath=".\src\zscript\ast.cpp"
|
||||
>
|
||||
</File>
|
||||
<File
|
||||
RelativePath=".\src\zscript\vm.h"
|
||||
>
|
||||
|
|
|
|||
Loading…
Reference in a new issue