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171 changes: 171 additions & 0 deletions
171
src/main/java/net/fabricmc/mappingio/format/srg/JamFileReader.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| /* | ||
| * Copyright (c) 2023 FabricMC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package net.fabricmc.mappingio.format.srg; | ||
|
|
||
| import java.io.IOException; | ||
| import java.io.Reader; | ||
| import java.util.Collections; | ||
| import java.util.Set; | ||
|
|
||
| import net.fabricmc.mappingio.MappedElementKind; | ||
| import net.fabricmc.mappingio.MappingFlag; | ||
| import net.fabricmc.mappingio.MappingUtil; | ||
| import net.fabricmc.mappingio.MappingVisitor; | ||
| import net.fabricmc.mappingio.format.ColumnFileReader; | ||
| import net.fabricmc.mappingio.format.MappingFormat; | ||
| import net.fabricmc.mappingio.tree.MappingTree; | ||
| import net.fabricmc.mappingio.tree.MemoryMappingTree; | ||
|
|
||
| /** | ||
| * {@linkplain MappingFormat#JAM_FILE JAM file} reader. | ||
| * | ||
| * <p>Crashes if a second visit pass is requested without | ||
| * {@link MappingFlag#NEEDS_MULTIPLE_PASSES} having been passed beforehand. | ||
| */ | ||
| public final class JamFileReader { | ||
| private JamFileReader() { | ||
| } | ||
|
|
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| public static void read(Reader reader, MappingVisitor visitor) throws IOException { | ||
| read(reader, MappingUtil.NS_SOURCE_FALLBACK, MappingUtil.NS_TARGET_FALLBACK, visitor); | ||
| } | ||
|
|
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| public static void read(Reader reader, String sourceNs, String targetNs, MappingVisitor visitor) throws IOException { | ||
| read(new ColumnFileReader(reader, ' '), sourceNs, targetNs, visitor); | ||
| } | ||
|
|
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| private static void read(ColumnFileReader reader, String sourceNs, String targetNs, MappingVisitor visitor) throws IOException { | ||
| Set<MappingFlag> flags = visitor.getFlags(); | ||
| MappingVisitor parentVisitor = null; | ||
|
|
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| if (flags.contains(MappingFlag.NEEDS_ELEMENT_UNIQUENESS)) { | ||
| parentVisitor = visitor; | ||
| visitor = new MemoryMappingTree(); | ||
| } else if (flags.contains(MappingFlag.NEEDS_MULTIPLE_PASSES)) { | ||
| reader.mark(); | ||
| } | ||
|
|
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| for (;;) { | ||
| boolean visitHeader = visitor.visitHeader(); | ||
|
|
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| if (visitHeader) { | ||
| visitor.visitNamespaces(sourceNs, Collections.singletonList(targetNs)); | ||
| } | ||
|
|
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| if (visitor.visitContent()) { | ||
| String lastClass = null; | ||
| boolean visitLastClass = false; | ||
|
|
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| do { | ||
| boolean isMethod; | ||
| boolean isArg = false; | ||
|
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| if (reader.nextCol("CL")) { // class: CL <src> <dst> | ||
| String srcName = reader.nextCol(); | ||
| if (srcName == null || srcName.isEmpty()) throw new IOException("missing class-name-a in line "+reader.getLineNumber()); | ||
|
|
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| if (!srcName.equals(lastClass)) { | ||
| lastClass = srcName; | ||
| visitLastClass = visitor.visitClass(srcName); | ||
|
|
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| if (visitLastClass) { | ||
| String dstName = reader.nextCol(); | ||
| if (dstName == null || dstName.isEmpty()) throw new IOException("missing class-name-b in line "+reader.getLineNumber()); | ||
|
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| visitor.visitDstName(MappedElementKind.CLASS, 0, dstName); | ||
| visitLastClass = visitor.visitElementContent(MappedElementKind.CLASS); | ||
| } | ||
| } | ||
| } else if ((isMethod = reader.nextCol("MD")) || reader.nextCol("FD") // method/field: MD/FD <cls-a> <name-a> <desc-a> <name-b> | ||
| || (isArg = reader.nextCol("MP"))) { // parameter: MP <cls-a> <name-a> <desc-a> <cls-b> <name-b> | ||
| String clsSrcClsName = reader.nextCol(); | ||
| if (clsSrcClsName == null) throw new IOException("missing class-name-a in line "+reader.getLineNumber()); | ||
|
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| String memberSrcName = reader.nextCol(); | ||
| if (memberSrcName == null || memberSrcName.isEmpty()) throw new IOException("missing member-name-a in line "+reader.getLineNumber()); | ||
|
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| String memberSrcDesc = reader.nextCol(); | ||
| if (memberSrcDesc == null || memberSrcDesc.isEmpty()) throw new IOException("missing member-desc-a in line "+reader.getLineNumber()); | ||
|
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| String col5 = reader.nextCol(); | ||
| String col6 = reader.nextCol(); | ||
| String col7 = reader.nextCol(); | ||
|
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| int argSrcPos = -1; | ||
| String dstName; | ||
| String argSrcDesc; | ||
|
|
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| if (!isArg) { | ||
| dstName = col5; | ||
| } else { | ||
| argSrcPos = Integer.parseInt(col5); | ||
|
|
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| if (col7 == null || col7.isEmpty()) { | ||
| dstName = col6; | ||
| } else { | ||
| argSrcDesc = col6; | ||
| if (argSrcDesc == null || argSrcDesc.isEmpty()) throw new IOException("missing parameter-desc-a in line "+reader.getLineNumber()); | ||
|
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| dstName = col7; | ||
| } | ||
| } | ||
|
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| if (dstName == null || dstName.isEmpty()) throw new IOException("missing name-b in line "+reader.getLineNumber()); | ||
|
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| if (!clsSrcClsName.equals(lastClass)) { | ||
| lastClass = clsSrcClsName; | ||
| visitLastClass = visitor.visitClass(clsSrcClsName); | ||
|
|
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| if (visitLastClass) { | ||
| visitLastClass = visitor.visitElementContent(MappedElementKind.CLASS); | ||
| } | ||
| } | ||
|
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| if (!visitLastClass) continue; | ||
| boolean visitMethod = false; | ||
|
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| if (isMethod || isArg) { | ||
| visitMethod = visitor.visitMethod(memberSrcName, memberSrcDesc); | ||
| } | ||
|
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| if (visitMethod) { | ||
| if (isMethod) { | ||
| visitor.visitDstName(MappedElementKind.METHOD, 0, dstName); | ||
| visitor.visitElementContent(MappedElementKind.METHOD); | ||
| } else { | ||
| visitor.visitMethodArg(argSrcPos, -1, null); | ||
| visitor.visitDstName(MappedElementKind.METHOD_ARG, 0, dstName); | ||
| visitor.visitElementContent(MappedElementKind.METHOD_ARG); | ||
| } | ||
| } else if (!isMethod && !isArg && visitor.visitField(memberSrcName, memberSrcDesc)) { | ||
| visitor.visitDstName(MappedElementKind.FIELD, 0, dstName); | ||
| visitor.visitElementContent(MappedElementKind.FIELD); | ||
| } | ||
| } | ||
| } while (reader.nextLine(0)); | ||
| } | ||
|
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| if (visitor.visitEnd()) break; | ||
|
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| reader.reset(); | ||
| } | ||
|
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| if (parentVisitor != null) { | ||
| ((MappingTree) visitor).accept(parentVisitor); | ||
| } | ||
| } | ||
| } |
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